US1553341A - Doorstop - Google Patents

Description

Sept. 15, 1925. 1,553,341

F. P; VAVRA DOORS'I'OP Filed July 18 1921 Patented Sept. 15, 1925.

PATE T OFFICE.

1 '1. wives, or m amen, iLLmoIs.

noons'ror.

Application and m 18, 1921. Serial in. 485,426.

Toall'whom concern:

Be it known-that I, FRANK P. VAVRA, a citizen of the United States, residing in La Grange, Cook County, State of Illinois, have invented certain new and useful Improve ments in Doorstops, of which the following is a specification. p

M' invention relates to door stops or chec s, which, when properly secured to a door will prevent it from slamming or closing, and has for its object the productionof a-device of the class described which will be of simple construction, economical to manufactu're,.and effective for the purpose contemplated.

A further object'of my invention is the construction of a door stop which will auto: matically and without manual adjustment hold a door by temporary resistance against movement in either direction desired.

A further object of my invention is a door stop wherein the floor engaging member may be readily placed in such position that the device will not function, and may be easily returned to operative engagement with the floor.

Other objects and advantages will appear hereinafter.

In the accompanyingdrawings I have illustrated an embodiment of what I now considerthe preferred form of my invention and -I wish to be understood as contemplating such modifications and alterations as can be made, without departing from the- I attac edto a door,

Fig. 2 is a top plan view of same,

Fi 3 is a central longitudinal .section showing the stop member in inoperative position. I Referring to the drawings, 'is a portion of an ordinary swinging door, towhich the stop is shown attached near the lower extremity thereof. 7

5 is a. supporting frame,- preferably formed ofmetal, which can be of various shapes, referably substantially triangular and U- aped in cross section, as shown. The su porting frame -5'is rigidly secured to the oor 4 b a screw 6, or any-other suitable means. 'l he screw 6' passes through a slot 7 in. the sup rting frame 5, which slot renders the heig t of the device from the flo'or adjustable by" loosening the screwtj. U j

Pivotally mounted near the outer extremity of the frame 5 is the stopmember 8, which, together with the resilient tip 9, formed preferably of rubber or other suitable material, is slightly greater in length than the. perpendicular distancefronr the pivot 10 to the floor.

The stop member 8 is preferably tubular in form. The pivot 10 passes through oppositely positioned slots 11 in the stop memher 8, which slots permit-a vertical movement. of the stop member, in addition to its oscillating movement.

12 is a coil spring positioned inside the tubular stop member 8& one extremity of said spring being seate against the pivot 11 as shown in Fi re 3. The opposite extremity of the spring is seated; against the tongues 13, which are cut out inwardly,- also forming a seat for the resilient tip9, which is retained in position by' frictional fire gagement with the side of the stop mem- When the. door to which the stop is attached has been closed, the position of the stop member 8 is as indicatedin dotted lines in Figure 3. When the door is opened the spring 12 yields and permits the stop member to be pushed over to the position illustrated in Figure-'1, whereupon no further resistance is ofi'ered to the (ipening of the door. It will, however, 0 er resistance, equal to the strength ofthe spring 12, to the closing of the door. The strength of said spring should be suflicient to prevent accidental closing or slamming of the 3 door, without being so great as'to make intentional closing thereof diflicult. p

The resistance oflered by the device can be increased or lessened by the vertical adjustment of the supporting frame 5 with relation to the door." When it is desired to close the door, suflicient pressure is brought to bear thereon to cause the spring 12 to yield, whereupon the stop member shifts into a trailing'positlon as shown in" dotted lines in Figure 3 and 'ofiers no further resistance against the movement of the door in this direction.

.Should it be desired, after the door is partially opened, to check further opening,

' the position of the stop member is shifted to that indicated in dotted lines in Fig. 3 by movement of thedoor.

, If desired toeliminate the functioning of wind the position illustrated in Fig. 3, from which, as is obvious it can easil be returned to operative engagement with t e floor. v

I also wish to be understood as contemplating the application of my device to owe.

. I claim 1'. A door stop comprising a supporting frame adapted to be adjustably secured to a door, a tubular stop member having a floor engaging tip movably secured to said frame, said stop member being inclined either toward or away from the door, and offering yieldable resistance against move ment of the door in the direction opposite to i the inclination of the stop member until the pivot passes the vertica plane of said stop member.

being seated against 2. In a door stop, the combination of a supporting frame adapted to, be adjustably secured to a door, a. tubular stop member having a pivot passing through oppositellyv ositioned slots, said stop having an osci ating and vertical movement, tongues-cut in the wall of the tubular member and bent inwardly, a spring positioned inside of said tubular stop member,

the farthest pivot, the opposite end of said spring being seated against the aforesaid tongue 'a resilient tip positioned in the end of sai tubular memher and retained inplace by frictional engagement therein, substantially as described.

In testimony whereof I have vsigned this specification.

FRANK P. VAVRA.

one end of said spring

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