US2109127A - Door stop - Google Patents

Description

Feb. 22, 1938. 0. E. CARLSON 2,109,127

DOOR STOP Filed June 8, 1957 Mmm 'I Y 19 6/4] 96 51g c 27 26 30 .l 20

Patented Feb. 22V, 1938 UNITEDr STATES PATENTY OFFICE DOOR STOP Otto E. Carlson, Vernonia, Oreg. Application .lune 8, 1937, Serial No. 147,125

2 Claims` (Cl. 292-69) This invention aims to 'provide a novel structure which may be used either to hold a door in a partially opened position, or bevemployed as a yieldable check or bumper which, when horizontally disposed, will engage the wall or base-board of a room and limit the opening movement of the door without marring the base-board or wall.

It is within the province of the disclosure to improve generally and to enhance the utility of l0 devices of that type to which the present invention appertains.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

1n the accompanying drawing:

Fig. 1 shows in elevation, a device constructed in accordance with the invention; Fig. 2 is a vertical longitudinal section;

Fig. 3 is a vertical longitudinal section showing the device as it will appear when it is used as a wall-engaging check or bumper;

Fig. 4 is a transverse section on the line 4-4 of Fig. 2;

Fig. 5 is an elevation of the back plate of the casing.

The numeral I marks a horizontally swinging barrier, such as a door. The floor is shown at 2.

The device forming the subject matter of this application preferably is made of metal, saving as hereinafter specied, and includes a support or casing, embodying a back plate 3. The back plate 3 has holes 4 near its upper and lower ends. Near its upper end, and adjacent to its longitudinal edges, the back plate 3 has slots 6.

'Ihe body of the casing is marked as a whole by the numeral 1. It includes parallel side walls 8, connected by a top plate 9 and a front plate IU. The front plate I0 is shorter than the side walls 8, and the casing, therefore, is open at the front, throughout a major portion of its height, as shown at I2, the casing being open at its bottom also, as shown at I4. The lower end of the frontl plate IIl is formed into an outwardly projecting stop Tongues |5 project from the side walls 8 and from the top plate 9 of the body 1 of the casing. The tongues|5 are extended through the slots 6 and are clinched down on the back plate 3, to hold the body 1 of the casing assembled with the back plate 3. Securing elements |6 are mounted in the holes 4 of the back plate 3, to hold the casing on the doorV I, in a vertical position.

The numeral |1 marks a tubular lever of such Width as to be received between the side walls 8 5 of the casing. Intermediate its ends, and near its upper end, the tubular lever |1 is fulcrumed at |8 on the side walls 8 of the casing. The upper end ofthe tubular lever |1 is provided with upstanding ears I9. The ears I9 carry Va trans- 10 verse pivot member 20. On the .pivot member 20 is mounted a shouldered stud 2| carrying a washer 22. The upper end of the stud 2| is received in the lower end of a compression spring 23, and the lower end of the compression spring 23 en- 15 gages the washer 22. The upper end of the compression spring 23 is carried by a downwardly extended and outwardly inclined nger 24 mounted on the back plate 3, near to the top plate 9 of the casing. 20

A plunger 25 is mounted for reciprocation in the tubular lever I1. The plunger 25 includes a head 26 tting closely but slidably in the tubular lever I1. The head 26 has a depending projection 21. Into the projection 21 is threaded the -re- 25 duced end 28 of a stem 29. The stem 29 slides in the lower end wall of the tubular lever I1. A compression spring 3|] is located in the tubular lever I1. The upper end of the compression spring 30 abuts against the upper end of the 30 tubular lever I1. The lower end of the compression spring 30 abuts against the head 26 of the plunger 25. A resilient foot 3|, preferably made of rubber, is secured to the lower end of the plunger stem 29, externally of the tubular lever I1. 35 The foot 3| preferably is a portion of a sphere and presents a wedge shaped edge 32 to the lower edge of the door I, under circumstances which will be pointed out hereinafter.

Assume that the parts are in the positions 40 shown in Fig. 3. Then the compression spring 23 has tilted the tubular lever |1 on its fulcrum I8 until the lever rests against the stop II on the casing, in a horizontal position. The compression spring 30 has advanced the plunger 25 45 until the shoulder afforded by the outer end of the projection 21 has engaged the outer end wall of the lever |1. The resilient foot 3| is so positioned that, when the door is opened, the foot will engage the wall or base-board (not shown) and 50 stop the opening movement ofthe door. Because the foot 3| is made of resilient material, such as rubber, and because the spring 30 affords a yieldable backing for the plunger 25, the door may be opened fully, and the part 3| may come 55 into contact with the wall or base-board, without marring either of those parts.

Suppose that the operator wishes to stop the door I in a partially opened position. He then places his foot on the part 3| and swings the lever II downwardly on its fulcrum I8 until the part 3| engages the oor 2, the door I being swung open until the wedge shaped part 32 of the foot is engaged underneath the door I, as shown in Fig. 2. It will then be practically impossible to open the door further, without applying a suiiicient force to break some part of the device forming the subject matter of this application. When the parts have reached the position of Fig. 2, the pivot member 20 is directly above the fulcrum I8 of the lever I'I, and the spring 23 will have no tendency to swing the lever I'I up into the position of Fig. 3. The operator, however, can close the door a little, in the direction of the arrow A in Fig. 2 and this operation Will shift the pivot member 20 lto rthe right in Fig. 2, with respect to the fulcrum I8 of the lever I1, so that the spring 23 will become effective to tilt the lever and raise it into the horizontal position of Fig. 3.

The device forming the subject matter of this application is simple in construction, but will be found thoroughly effective for the ends in view. The structure has a. double function, in that it may be used, as in Fig. 2, to stop a door in a partially opened position, and in that it may be used in the position of Fig. 3 to serve as a yieldable, wall-engaging bumper, when the door is opened fully.

Having thus described the invention, what is claimed is:

1. In a device of the class described, a casing having a stop, a lever fulcrumed intermediate its ends on the casing, a plunger slidable on the lever, a foot on the lower end of the plunger and shaped to be engaged beneath a door, spring means for moving the plunger outwardly with respect to the lever, and spring means assembled with the casing and with the upper end of the lever for swinging the lever and the plunger upwardly into an approximately horizontal position, in engagement with the stop.

2. In a device of the class described, a casing having a stop, a tubular lever fulcrumed intermediate its ends on the casing, a plunger slidable in the lever, a foot on the lower end of the plunger andY shaped to be` engaged beneath a door, a compression spring interposed between the upper end of the plunger and the upper end of the lever, and a compression spring extended between the upper `end ofthe lever and the upper portion of the casing, the last specied spring constituting means for swinging the lever upwardly into engagement with the stop when the foot is disengaged from beneath a door.

O'IIO E. CARLSON.

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