US2097349A - Adjustable door stop - Google Patents

Description

Oct. 26, 1937. L, 1 SLADEK 2,097,349

`ADJUSTA BLE DOOR STOP Filed Nov. 6, 1935 Patented Oct. 26, 1937 Nrs T si

Appiication November 3 Claims.

This invention relates to improvements in door stops and has special reference to improvements in stops which are adjustable as to length.

The object of the invention is to provide a door stop of the inclined lever type which can be readily adjusted as to length Without removing any part; in which no screw will be expose-d to view; in which the adjusting member will be permanently attached to the lever; in which the shoe shall be readily removable for replacement; and which will have a very simple yielding means for retaining the lever in non-operative or raised position.

A further feature relates to the construction is exposed in plain view and is preferably slotted to receive a screw-driver for ready and easy rotation.

The exposure of the slotted end or head of the adjusting member is a plain and comprehensible suggestion to any one desiring to adjust the stop as to length, as to just how it can be done and eliminates the necessity of special instructions, which in most cases, cannot be found when the necessity of adjustment occurs.

Another feature resides in the fact that when the stop lever is in operative position, that is dropped down to contact the iioor, the adjusting member is vertical and the exposed slotted head is in plain view and the adjusting member stands vertically with the lower floor contacting end of the shoe flat against the iioor. If the shoe does not thus contact the floor it plainly indicates that the length of the stop should be adjusted and the slotted head of the adjusting member, being in plain view at the top of the vertical lower part of the stop, clearly indicates the way in which and ease with which the stop can be changed as to length to make the lower end contact the floor A properly.

. The invention will be more readily and clearly understood by reference to the accompanying drawing, illustrating a preferred embodiment oi the invention when taken in conjunction with the following description and the appended claims.

In said drawing:-

, Figure 1 is a side elevation showing the lever in operative position in full lines and in raised or inoperative position in dotted lines;

` Figure 2 is a front view of the stop with the lever shown in operative position;

Figure 3 is a top plan view of the stop;

Figure 4 is an enlarged fragmentary, vertical, 55 central section on the line 4 4 of Fig. 2;

by which one end of the adjusting memberq- 6, 1935, Serial N0. 48,530

Figure 5 is an enlarged fragmentary, vertical, central section on the line 5-5 of Fig. 2, and indicating by dotted lines that the stop can be changed as to length by adjusting the shoe up or down;

Figure 6 is a horizontal section on the line 6 5 of Fig. 5; and

Figure '7 illustrates the split spring washer which is used to secure the adjusting member in place.

As shown, this improved stop consists of two main members, a bracket member I by which theI stop can be secured to a door l i by screws l2, and a lever I3.

The lever i3 is pivotally mounted at one end on the bracket iii by a horizontal pivot I4 received in ears E 5 projecting from a base I6. The upper end of the lever is received between the ears i5 and the lever is mounted on the pivot lli to swing up to inoperative position as shown in Fig. 1 in dotted lines or down into operative position as shown in full lines.

In operative position the lever is intended to be inciined in relation to the door Il as shown in Fig. l, to brace the door against movement in one direction. The stop is commonly used to hold a door in open position.

The lower end i3 of the lever I3 is formed into a cylindrical boss it extending vertically, that is at an inclination to the body of the lever suiiicient to set it vertically when the lever is in proper operative position.

The boss i9 is extended below the lower end of the lever as shown at 2i), and such extension is cylindrical in shape. The boss and its extension is provided with a longitudinal vertical bore 2i which extends upward from its lower end to a point adjacent to the topof the boss i9. This construction provides a flange 22 closing the top of the bore 2l which is provided with a central opening 23 to receive the shank of an adjusting member or screw 24.

The adjusting member 2Q is rotatable in the boss and is held against endvvise movement relatively thereto by means of the flange 22. The head 25 of the screw 24 contacts with the outer side of the flange 22 and I provide a washer collar 26 for contact with the inner face of the iiange 22.

The collar 26 is preferably, as shown, in the form a split lock washer and is received in a groove 2'? formed in the body of the screw just below the flange 22. Below the groove 2i the body oi the screw 2 is provided with an integral circumferential collar 28 which is flat on its upper surface for Contact with the spring collar 26 and is cone-shaped or tapered on its lower side to assist in assembling the spring washer with the screw 24 when the screw is in place in the boss I9. In assembling these parts of the device, the screw is placed in the boss I9 with its head 25 in contact with the upper end of the boss, then the spring washer is inserted in the bore 2| on the threaded end of the screw and pushed into contact with the fixed collar 28. Then a tubular tool is inserted and forced against the spring split washer with sufficient pressure to cause it to be expanded by the coned side of the collar 25 and snap into place in the groove 21.

This construction locks the screw 24 in place preventing its removal, holds it against relative longitudinal movement and permits it to rotate freely to accomplish its function in changing the length of the stop.

The head 25 of the screw 24 is preferably provided with a transverse slot 29 as shown to receive a screw-driverpoint when adjustment of the length of the stop is desired. This screw head as shown, is in plain sight when the stop is in operative position', and preferably when the stop is properly adjusted to operative position, the screw 24 stands vertically.

The screw 24 as shown, is screw-threaded and is adapted to receive an elongated nut 33 provided with a longitudinal bore co-operatively screwthreaded. The nut 30, as explained, is an elongated member and slides freely up and down in the bore 2l of the boss I9, but is prevented from rotation therein preferably by being formed to circumferentially engage the wall of the bore 2l. As shown, this circumferential engagement is provided for by making the nut 30 square in crosssection and providing longitudinal grooves 3! in the wall of the bore 2| as best shown in Fig. 6,

The lower end of the nut 3! is provided with a head 32 preferably in the form of a horizontally extending flange flat on its bottom which is in position to contact with the floor when the stop is in holding position. Preferably, however, I provide a semi-hard covering for the head 32 preferably comprising a vulcanized on covering 33 which covers the flange head 32 completely and extends some distance up the body ofthe nut member as shown.

Preferably, also, I make the upper end of the covering 33 in tubular form of a diameter to slide freely upon the outer cylindrical surface of the extension 2B of the boss I9 and thus conceal the space 34 between the lowei end of the extension 20 and the covering 33.

The nut 39 with its vulcanized on covering 33 constitutes the shoe of the stop for contact with the floor and as described, this shoe cannot rotate. It can be adjusted up and down by means of the screw to change the length of the stop as indicated in dotted lines in Fig. 5.

The spring washer which is split at one point as shown at 35 to permit it to expand in assembling it with the other parts, is also yieldable longitudinally of the screw 24 and serves to hold the screw endwise with a slightly yielding pressure and to provide sufficient friction to prevent the screw being rotated except intentionally for changing the length of the stop.

For yieldingly holding the lever III in its upper Y or non-operative position, I provide a yielding spring structure. The lever I3 is preferably made of brass and is preferably nished and polished all over and the upper end I1 is preferably cylindrical in form having a smooth outer surface.

I provide a yielding stop fixed on the base I0 between the lugs I5 and preferably comprising a steel ball 3S received in a hole 31 provided in the inner side of the base. The hole 31 is closed at its bottom and serves as a container for a compression spring 38 behind the ball 36. In assembling, the spring is first put in the hole 31 and the ball 35 is then put in and the rim of the open end of the hole 31 is then formed inwardly sufficient to hold the ball from escaping and yet expose nearly half of the ball.

To provide a socket on the end I1 of the lever to receive the ball for holding the lever in inoperative position, I preferably provide a socket member 39 of harder metal, preferably steel, and insert it in a hole 4I) provided in the periphery of the end I1 of the lever. The socket member is driven into the hole 4I! and is provided on its outer end with a spherical-like depression 4I to receive the ball 36. The exposed end of the socket member projects enough beyond the cylindrical surface of the lever end I1 to cause the ball 3B to be pressed into the socket when in engagement therewith, the ball being Yheld back suiiciently to prevent its contact with the cylindrical surface of the lever end I1. To cause the ball to be pushed back against the spring pressure when passing into engagement with the socket 39, the outer edge 42 of the exposed end of th'e socket member 39 is slightly rounded or beveled as shown.

Preferably the base I3 is provided with one of the screws I2 located centrally at the top and two of the screws I2 at its lower end, one at each side. Such an arrangement of the holding screws is very effective for holding the base rmly in place and resisting the strains produced when it is attempted to swing the door against the holding action of the stop.

As many modifications of my invention will readily suggest themselves to one skilled in the art, I do not limit Yor confine my invention to the specific details of construction and combinations of parts herein shown and described, except within the scope of the appended claims.

I claim:

1. In a door stop of the lever type, the lever provided with a hollow boss on its free end arranged to stand substantially vertically when the lever is in holding position, a shoe .member extending up both inside and outside of said boss and movable longitudinally thereof, an adjusting member extending through the boss and having a screw-threaded engagement with the shoe, means for holding said member against relative longitudinal movement, means for holding the shoe against rotation and said adjusting member having its upper end exposed.

2. In a door stop of the lever type, the lever having a boss at its free end provided with a central longitudinal opening, a shoe slidably mounted on the boss, a shoe adjusting member extending through said opening and having screwthreaded engagement with the shoe, the arrangement being such that the upper end of the adjusting member is exposed, and the shoe having a portionV whichY extends up within said central opening in the boss, means providing circumferential engagement between said. portion and said boss for preventing rotational movement of said shoe, the shoe comprising a central longitudinal member including said upwardly extending portion and having an enlarged head at its lower end, and a slightly yieldable envelope covering the lower part of said member and having a.

tubular extension at its upper end adapted to slide over the lower end of said boss.

3. In a door stop of the lever type, the lever having a boss on its free end and arranged to stand substantially vertically when the lever is in holding position, a shoe movable longitudinally on said boss, the boss having a central longitudinal bore, an internal integral flange at the upper end of the boss, a shoe adjusting member arranged to be inserted through said flange into said bore and having a head arranged to contact the outer surface of said ilange, the adjusting

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