US20090260181A1 - Caster - Google Patents
Caster Download PDFInfo
- Publication number
- US20090260181A1 US20090260181A1 US12/148,478 US14847808A US2009260181A1 US 20090260181 A1 US20090260181 A1 US 20090260181A1 US 14847808 A US14847808 A US 14847808A US 2009260181 A1 US2009260181 A1 US 2009260181A1
- Authority
- US
- United States
- Prior art keywords
- caster
- axle
- bearing
- raceway
- stem
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0028—Construction of wheels; methods of assembling on axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0036—Castors in general; Anti-clogging castors characterised by type of wheels
- B60B33/0039—Single wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
- B60B33/0049—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being horizontal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
- B60B33/0057—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being offset from swivel axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
- B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
- B60B33/0068—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being vertical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
- B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
- B60B33/0073—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being symmetrical to wheel or wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B7/00—Wheel cover discs, rings, or the like, for ornamenting, protecting, venting, or obscuring, wholly or in part, the wheel body, rim, hub, or tyre sidewall, e.g. wheel cover discs, wheel cover discs with cooling fins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B7/00—Wheel cover discs, rings, or the like, for ornamenting, protecting, venting, or obscuring, wholly or in part, the wheel body, rim, hub, or tyre sidewall, e.g. wheel cover discs, wheel cover discs with cooling fins
- B60B7/04—Wheel cover discs, rings, or the like, for ornamenting, protecting, venting, or obscuring, wholly or in part, the wheel body, rim, hub, or tyre sidewall, e.g. wheel cover discs, wheel cover discs with cooling fins built-up of several main parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B7/00—Wheel cover discs, rings, or the like, for ornamenting, protecting, venting, or obscuring, wholly or in part, the wheel body, rim, hub, or tyre sidewall, e.g. wheel cover discs, wheel cover discs with cooling fins
- B60B7/06—Fastening arrangements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B7/00—Wheel cover discs, rings, or the like, for ornamenting, protecting, venting, or obscuring, wholly or in part, the wheel body, rim, hub, or tyre sidewall, e.g. wheel cover discs, wheel cover discs with cooling fins
- B60B7/06—Fastening arrangements therefor
- B60B7/061—Fastening arrangements therefor characterised by the part of the wheels to which the discs, rings or the like are mounted
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
In one embodiment, a caster has a horn having a first side with a first raceway, a second side with a second raceway, and a stem. At least one bearing may be located in the stem and a stem seal is removably positioned to substantially cover the at least one bearing. Also, a wheel assembly has an axle whereby a first end of the axle is positioned within the first raceway and a second end of the axle is positioned in the second raceway. Yet other forms of the invention will be suited for specific applications.
Description
- The present invention relates to casters, and more particularly to casters that provide for horn enclosed mechanisms and provide for an enhanced snap fit wheel assembly along with other benefits and features.
- Casters of various types are well known in the art. Such devices are typically used in a variety of different ways, such as, for example, they can be mounted in a swivel frame that could be used for the support and movement of furniture, carts, wagons, chairs, tables, desks, cabinets, etc. The frame which swivels is commonly referred to as a horn. A caster wheel is commonly mounted so there is an offset from the horn neck or stem and whereby the wheel rotates and trails behind the horn stem which is mounted to the equipment it is being used for. Since the primary use of a caster is for transportation, equipment is usually pushed or pulled by a person over a variety of surfaces. It is desirable that the caster provides for stability and easy rolling of whatever it is attached to. It is also desirable that the caster is durable and provides an aesthetic appearance. Casters are commonly used in groups of four or five per supported device. They are often customized such as by shape, size, or color to fit a particular application.
- However, previous casters have some inherent disadvantages. One of the disadvantages with existing casters is that they do not effectively prevent build-up of foreign material from interfering with the operation of the caster. Casters are sometimes used in an environment where undesirable material is located on the surface or floor and the wheel of the caster may pick up some of this material whereby the material wraps around the axle of otherwise interferes with the bearing. For example, such material may include threads, hair, string, etc. Serious complications to the caster may result whereby the multiple strands of material wrap around the axle and interfere with the operation of the caster and its bearings. Still yet other occurrences are where dirt and debris may enter the bearings and effect the functionality of the bearings.
- The present invention overcomes these and other problems inherent in existing caster designs. In one form, the present invention provides a horn having a first side with a first raceway and a second side with a second raceway. The horn further has in one embodiment at least one bearing molded into the stem and whereby a stem seal is easily pressed into position to substantially cover the bearing. Also included is a wheel assembly having an axle where a first end of the axle is positioned within the first raceway and a second end of the axle is positioned in the second raceway. A first and second snap device are located within the raceways to allow for easy assembly of the wheel and axle within the horn whereby a snap fit installation is realized. Further, in one form, the horn covers substantially the entire side surfaces of the wheel assembly to minimize the risk of debris interfering with the operation of the caster. Also included may be a first tread guard and a second tread guard that are positioned on each side of the wheel core and, in one form, are press fit into place to substantially cover the bearing thereby minimizing risk of foreign materials and debris interfering with the operation of the bearing and wheel assembly.
- In one embodiment, a caster has a horn having a first side with a first raceway, a second side with a second raceway, and a stem. At least one bearing may be located in the stem and a stem seal is removably positioned to substantially cover the at least one bearing. Also, a wheel assembly has an axle whereby a first end of the axle is positioned within the first raceway and a second end of the axle is positioned in the second raceway. Yet other forms of the invention will be suited for specific applications.
-
FIG. 1 is a perspective view of one embodiment of a caster; -
FIG. 2 is a side view of the caster ofFIG. 1 ; -
FIG. 3 is an exploded view of the caster ofFIG. 1 ; -
FIG. 4 is a partial cross sectional side view of the caster ofFIG. 1 showing the horn and stem bearing; -
FIG. 5 is a cross sectional view of the caster ofFIG. 1 ; -
FIG. 6 is a perspective view of the caster ofFIG. 1 shown with the axle without the complete wheel assembly in place; -
FIG. 7 shows these views of one form of the wheel assembly of the caster ofFIG. 1 ; -
FIG. 8 is a top view of one embodiment of a stem seal; -
FIG. 8 a is a side view of the stem seal ofFIG. 8 ; and -
FIG. 8 b is a cross-sectional view of the stem seal ofFIG. 8 along line A-A. - While the present invention is susceptible of embodiments in various forms, there is shown in the drawings and will hereinafter be described some exemplary and non-limiting embodiments, with the understanding that the present disclosure is to be considered an exemplification for the invention and is not intended to limit the invention to the specific embodiments illustrated. In this disclosure, the use of the disjunctive is intended to include the conjunctive. The use of the definite article or indefinite article is not intended to indicate cardinality. In particular, a reference to “the” object or “a” object is intended to denote also one of a possible plurality of such objects.
-
FIG. 1 is a perspective view of one embodiment of thecaster 10. As shown inFIG. 1 , one embodiment ofcaster 10 may include ahorn assembly 20, awheel assembly 65 positioned withinhorn assembly 20, astem 29, and astem seal 40.FIG. 2 shows a side view of one embodiment ofcaster 10. -
FIG. 3 shows an exploded view of one embodiment ofcaster 10 wherebycaster 10 has ahorn assembly 20 having afirst side 22, asecond side 24, atop portion 26 and stem 29. Further shown inFIG. 3 are one ormore bearings 30, astem seal 40, andwheel assembly 65. In one form, thewheel assembly 65 may include awheel core 66 having wheel bearing 68,tread 70encircling wheel core 66, afirst thread guard 72 and asecond thread guard 74. Bearing 68 may be any commercially available bearing that can be sized for a particular application ofcaster 10 whereby bearing 30 will allow for proper operation ofcaster 10. Also shown inFIG. 3 is one embodiment of anaxle 80 having afirst recess 82, asecond recess 84, afirst head 86 and asecond head 88. - As shown in
FIG. 4 , in one form of the invention, one ormore bearings 30 may be positioned and molded into thehorn assembly 20 at thestem 29 portion substantially as shown inFIG. 4 or in yet other embodiments bearing 30 may be positioned in the horn and sized in different variations for a particular application ofcaster 10. Bearing 30 may be any commercially available bearing that can be sized for a particular application ofcaster 10 whereby bearing 30 will allow for proper operation ofcaster 10. - The
horn assembly 20 in one embodiment is provided whereby the horn assembly material is comprised of 30% glass filled nylon 6 for a molded clean look design. And for yet other embodiments, other materials, and/or combinations of materials may be used. In one embodiment, the overall design features are for a molded caster design, which provides for a unique clean and uncluttered exterior aesthetic look whereby there are no exposed fastenings or mechanisms on the exterior surfaces of the caster. In one form, thehorn assembly 20 covers substantially the entire side and top surface areas ofwheel assembly 65 to provide not only an aesthetic look but also to prevent debris and other material from effecting the operation of the caster and wheel assembly. It is understood that this aesthetic look is important in, for example, a professional or design focusing environment while aesthetics in addition to function are desirable. - In one form of the invention as shown in
FIGS. 4-6 , the caster incorporates elements to provide for anaxle 80 to be easily and efficiently press-fit into thehorn assembly 20. In this embodiment, one or more inner precision raceways may be included in thehorn assembly 20. For example, as shown inFIG. 6 , one embodiment ofhorn assembly 20 may include afirst raceway 32, asecond raceway 34, afirst snap device 36 and asecond snap device 38 incorporated in the horn assembly as shown. In other embodiments, the raceways and snap devices may be supplied in different variations and designs to achieve a similar effect. As shown inFIG. 5 andFIG. 6 , the snap-devices may be, in one form, triangular shaped protrusions that are positioned within the raceways. In yet other forms, the protrusions can be rounded instead of pointed. They can also be square shaped or another shape for the specific application. - As shown in
FIG. 6 , in one form,axle 80 may be snap fit intohorn assembly 20 whereby afirst recess 82 and afirst head 86 communicate with afirst raceway 32 and asecond recess 84 andsecond head 88 communicate with asecond raceway 34 whereby the axle is pushed through the raceways as it encounters a first andsecond snap device heads horn assembly 20. It is noted that inFIG. 6 , the axle is shown withoutwheel assembly 65 in position aroundaxle 80 for clarity purposes. In use,wheel assembly 65 would be positioned aroundaxle 80 andaxle 80 would be snap fit into position as described herein. - As shown in
FIG. 1 andFIG. 6 , astem seal 40 may be provided in one embodiment whereby thestem seal 40 may be comprised of glass filled nylon 6 material. And yet in other embodiments, stemseal 40 may be manufactured of a variety of and/or combination of materials to provide for proper operation ofcaster 10. In one form, stemseal 40 is positioned above bearing 30 and pushed or press-fit into place for ease of installation and to prevent foreign materials and dirt from accumulating withinbearings 30. -
FIG. 7 has three various views ofwheel assembly 65 section A-A along line A-A and showsfirst thread guard 72 andsecond thread guard 74 in position overbearing 68. Also shown arewheel core 66 andthread 70. In one form, the first and second thread guards 72 and 74 may be pressed or push-fit into place to cover substantially all of bearing 68 and minimize the amount of foreign material or debris that could enterbearing 68 and interfere with the operation of the wheel assembly. In one form, the wheel thread may be monoprene wheel thread and yet in other forms may be constructed and designed of a variety of other materials for a specific application of the caster. - In one form, the
caster 10 may have a dynamic load rating of 120 pounds. Some of the technical specifications may be a 3⅞ inch mounting height and a swivel radius of 2⅞ inch. It is understood that there are a variety of different load ratings as well as achievable dimensions for the overall height, width and depth of the caster and for its various components. It is also understood that there are a variety of different materials and construction designs that may be used for particular applications ofcaster 10 and for use with specific equipment and specific environments.Caster 10 is easily modified to accommodate for the required features and specification designs. -
FIG. 8 shows a plan view of one embodiment ofstem seal 40 andFIG. 8-A shows a side view of one embodiment ofstem seal 40.FIG. 8 b shows a cross-sectional view ofstem seal 40 taken along line A-A ofFIG. 8 . - Specific embodiments of novel methods and apparatus for construction of novel casters according to the present invention have been described for the purpose of illustrating the manner in which the invention is made and used. It should be understood that the implementation of other variations and modifications of the invention and its various aspects will be apparent to one skilled in the art, and that the invention is not limited by the specific embodiments described. Therefore, it is contemplated to cover the present invention any and all modifications, variations, or equivalents that fall within the true spirit and scope of the basic underlying principles disclosed and claimed herein.
Claims (20)
1. A caster comprising;
a horn having a first side with a first raceway, a second side with a second raceway, and a stem;
at least one bearing located in the stem and a stem seal removably positioned to substantially cover the at least one bearing; and
a wheel assembly having an axle whereby a first end of the axle is positioned within the first raceway and a second end of the axle is positioned in the second raceway.
2. The caster of claim 1 wherein the first raceway has a first snap device and the second raceway has a second snap device which operate to maintain the axle in position with the raceways.
3. The caster of claim 1 wherein the first and second raceways have a means for holding the axle in position within the horn.
4. The caster of claim 1 wherein the wheel assembly has a wheel core with a bearing and a tread that is positioned around the parameter of the wheel core.
5. The caster of claim 4 further comprising a first tread guard and a second tread guard that is positioned on each side of the wheel core and substantially covers the bearing.
6. The caster of claim 5 wherein each tread guard can be snap fit onto the wheel core.
7. The caster of claim 1 wherein the bearing is molded into the stem.
8. The caster of claim 7 wherein the stem seal can be snap fit into position on the stem and substantially covers the bearing.
9. A caster comprising;
a wheel assembly having an axle whereby the axle has a first end and a second end; and
a horn having a first raceway for accepting and snap fitting into position the axle first end and a second raceway for accepting and snap fitting into position the axle second end.
10. The caster of claim 9 wherein the wheel assembly has a wheel core with a bearing and a tread that is positioned around the parameter of the wheel core.
11. The caster of claim 10 further comprising a first tread guard and a second tread guard that is positioned on each side of the wheel core and substantially covers the bearing.
12. The caster of claim 11 wherein each tread guard can be snap fit onto the wheel core.
13. The caster of claim 9 wherein the bearing is molded into the stem.
14. The caster of claim 13 wherein the stem seal can be snap fit into position on the stem and substantially covers the bearing.
15. A caster comprising:
a horn having a first means for holding, a second means for holding, and a stem having at least one AV bearing;
a least one stem seal positioned over the at least one bearing and where the at least one stem seal is press fit into position;
a wheel assembly having an axle first end and an axle second end whereby the axle first end communicates with the first means for holding and the axle second end communicates with the second means for holding; said wheel assembly having a wheel core with a bearing and a tread; and
a first tread guard and a second tread guard each of which axle press fit onto the wheel assembly.
16. The caster of claim 15 wherein the first means for holding includes a raceway having a snap fit device and the second means for holding includes a snap fit device.
17. The caster of claim 1 wherein the bearing is molded into the stem.
18. The caster of claim 15 wherein the first and second means for holding are molded into the horn.
19. The caster of claim 16 wherein the first raceway is positioned at a point opposite the second raceway.
20. The caster of claim 16 wherein the axle has a first head and a second head whereby the first head is positioned in the first raceway and the second head is positioned in the second raceway.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US12/148,478 US20090260181A1 (en) | 2008-04-18 | 2008-04-18 | Caster |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/148,478 US20090260181A1 (en) | 2008-04-18 | 2008-04-18 | Caster |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090260181A1 true US20090260181A1 (en) | 2009-10-22 |
Family
ID=41199868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/148,478 Abandoned US20090260181A1 (en) | 2008-04-18 | 2008-04-18 | Caster |
Country Status (1)
Country | Link |
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US (1) | US20090260181A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110138571A1 (en) * | 2009-12-15 | 2011-06-16 | Po-Chuan Tsai | Castor that can be Detached and Cleaned Easily and Quickly |
GB2565758A (en) * | 2017-07-19 | 2019-02-27 | Roderick Birch Guy | Cover apparatus |
USD964153S1 (en) * | 2018-12-29 | 2022-09-20 | Xue Lin | Caster |
EP4052563A3 (en) * | 2021-03-01 | 2022-11-16 | Robert Bosch GmbH | Castor device, lawn mower with the castor device and method of mounting the castor device |
Citations (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3177516A (en) * | 1961-05-25 | 1965-04-13 | Shepherd Casters Inc | Tilted axle caster |
US3327343A (en) * | 1965-09-08 | 1967-06-27 | United Service Equipment Co In | Axle bolt and support assembly for casters |
US3345675A (en) * | 1966-01-13 | 1967-10-10 | Raymond Haydock Jr | Furniture caddy carrier |
US3349426A (en) * | 1966-07-26 | 1967-10-31 | Raymond Haydock Jr | Hooded caster wheel assembly |
US3648325A (en) * | 1970-08-24 | 1972-03-14 | Stewart Warner Corp | Double wheeled caster |
US3703020A (en) * | 1969-07-10 | 1972-11-21 | Bliss & Laughlin Ind | Anti-fouling caster, swivel-type |
US3818541A (en) * | 1972-01-07 | 1974-06-25 | Guy Raymond Eng Co Ltd | Castors |
US3997938A (en) * | 1975-08-25 | 1976-12-21 | Bliss & Laughlin Ind., Inc. | Dual wheel caster assembly |
US4282628A (en) * | 1977-10-25 | 1981-08-11 | Herder N.V. | Tilted axle caster |
US4377883A (en) * | 1981-10-13 | 1983-03-29 | Plastiglide Manufacturing Corporation | Twin caster assembly |
US4689848A (en) * | 1986-06-23 | 1987-09-01 | Bernard Kotzin | Caster having interfitting housing members with integral bearings and a separate axle |
US5083341A (en) * | 1989-09-11 | 1992-01-28 | Tente-Rollen Gmbh & Co. | Twin caster, particularly a steering caster |
US5119525A (en) * | 1990-02-02 | 1992-06-09 | Emilsider Meccanica S.P.A. | Castor structure |
US5275472A (en) * | 1992-06-11 | 1994-01-04 | Hicks Jimmy L | Shopping cart wheel with adjustable friction |
US5568671A (en) * | 1994-12-01 | 1996-10-29 | Fki, Industries, Inc. | Caster assembly with integral plastic stem and horn and with removable axle lock cap |
US6336685B1 (en) * | 1999-10-26 | 2002-01-08 | Kenneth R. Orr | Embedded single bearing wheel |
US6367885B1 (en) * | 2000-06-09 | 2002-04-09 | Standex International Corporation | Molded wheel and bearing assembly |
US6419319B1 (en) * | 1998-10-23 | 2002-07-16 | Sakurai Hardware Co. | Wheel device and chair equipped with same |
US20040068831A1 (en) * | 2002-07-06 | 2004-04-15 | Caruso Jerome C. | Caster construction |
US6748623B1 (en) * | 2002-11-27 | 2004-06-15 | Po-Chuan Tsai | Chair caster |
US6810560B1 (en) * | 2003-11-06 | 2004-11-02 | Hai-Ming Tsai | Castor |
US20040221423A1 (en) * | 2003-05-09 | 2004-11-11 | Po-Chuan Tsai | Office chair caster with a structural improvement |
US7143472B2 (en) * | 2003-10-10 | 2006-12-05 | Gary Dwayne Hicks | Caster thread guard and caster assembly |
US7150070B2 (en) * | 2001-06-04 | 2006-12-19 | Donakowski William J | Hubless caster |
US7546662B2 (en) * | 2007-05-07 | 2009-06-16 | Jacob Holtz Company | Caster with weight transferring tab |
-
2008
- 2008-04-18 US US12/148,478 patent/US20090260181A1/en not_active Abandoned
Patent Citations (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3177516A (en) * | 1961-05-25 | 1965-04-13 | Shepherd Casters Inc | Tilted axle caster |
US3327343A (en) * | 1965-09-08 | 1967-06-27 | United Service Equipment Co In | Axle bolt and support assembly for casters |
US3345675A (en) * | 1966-01-13 | 1967-10-10 | Raymond Haydock Jr | Furniture caddy carrier |
US3349426A (en) * | 1966-07-26 | 1967-10-31 | Raymond Haydock Jr | Hooded caster wheel assembly |
US3703020A (en) * | 1969-07-10 | 1972-11-21 | Bliss & Laughlin Ind | Anti-fouling caster, swivel-type |
US3648325A (en) * | 1970-08-24 | 1972-03-14 | Stewart Warner Corp | Double wheeled caster |
US3818541A (en) * | 1972-01-07 | 1974-06-25 | Guy Raymond Eng Co Ltd | Castors |
US3997938A (en) * | 1975-08-25 | 1976-12-21 | Bliss & Laughlin Ind., Inc. | Dual wheel caster assembly |
US4282628A (en) * | 1977-10-25 | 1981-08-11 | Herder N.V. | Tilted axle caster |
US4377883A (en) * | 1981-10-13 | 1983-03-29 | Plastiglide Manufacturing Corporation | Twin caster assembly |
US4689848A (en) * | 1986-06-23 | 1987-09-01 | Bernard Kotzin | Caster having interfitting housing members with integral bearings and a separate axle |
US5083341A (en) * | 1989-09-11 | 1992-01-28 | Tente-Rollen Gmbh & Co. | Twin caster, particularly a steering caster |
US5119525A (en) * | 1990-02-02 | 1992-06-09 | Emilsider Meccanica S.P.A. | Castor structure |
US5275472A (en) * | 1992-06-11 | 1994-01-04 | Hicks Jimmy L | Shopping cart wheel with adjustable friction |
US5568671A (en) * | 1994-12-01 | 1996-10-29 | Fki, Industries, Inc. | Caster assembly with integral plastic stem and horn and with removable axle lock cap |
US6419319B1 (en) * | 1998-10-23 | 2002-07-16 | Sakurai Hardware Co. | Wheel device and chair equipped with same |
US6336685B1 (en) * | 1999-10-26 | 2002-01-08 | Kenneth R. Orr | Embedded single bearing wheel |
US6367885B1 (en) * | 2000-06-09 | 2002-04-09 | Standex International Corporation | Molded wheel and bearing assembly |
US7150070B2 (en) * | 2001-06-04 | 2006-12-19 | Donakowski William J | Hubless caster |
US20040068831A1 (en) * | 2002-07-06 | 2004-04-15 | Caruso Jerome C. | Caster construction |
US6748623B1 (en) * | 2002-11-27 | 2004-06-15 | Po-Chuan Tsai | Chair caster |
US20040221423A1 (en) * | 2003-05-09 | 2004-11-11 | Po-Chuan Tsai | Office chair caster with a structural improvement |
US7143472B2 (en) * | 2003-10-10 | 2006-12-05 | Gary Dwayne Hicks | Caster thread guard and caster assembly |
US6810560B1 (en) * | 2003-11-06 | 2004-11-02 | Hai-Ming Tsai | Castor |
US7546662B2 (en) * | 2007-05-07 | 2009-06-16 | Jacob Holtz Company | Caster with weight transferring tab |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110138571A1 (en) * | 2009-12-15 | 2011-06-16 | Po-Chuan Tsai | Castor that can be Detached and Cleaned Easily and Quickly |
GB2565758A (en) * | 2017-07-19 | 2019-02-27 | Roderick Birch Guy | Cover apparatus |
USD964153S1 (en) * | 2018-12-29 | 2022-09-20 | Xue Lin | Caster |
EP4052563A3 (en) * | 2021-03-01 | 2022-11-16 | Robert Bosch GmbH | Castor device, lawn mower with the castor device and method of mounting the castor device |
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