US1777672A

US1777672A - Door holder

Info

Publication number: US1777672A
Authority: US
Inventors: Norman B Hurd
Original assignee: American Hardware Corp
Current assignee: Emhart Industries Inc
Priority date: 1928-12-19
Filing date: 1928-12-19
Publication date: 1930-10-07
Anticipated expiration: 1947-10-07

Description

Gcn 7,1930. a QURD 1,777,572

DOOR HOLDER I Filed Dec. 19, 1928 ATTORNEY Patented Oct. 7, 1930 CQNNECTICUT:

y I Application filed December 19,4928;

This i nvention relates to door stops or sired angle relativeto its casing. l e

The principal object of the present invention is to provide an improved form. of door stop for holding a door ajar at any desired position, and comprises an improvement upon the form of. door stop disclosed in my United States Patent No. 1,595,098.

In the accompanying drawing Fig. 1 is a plan View showing my invention applied to a door, the door being shown in its a open position;

Fig. 2 is a vertical sectional view through the joint connecting the twopivoted arms of the'mechanism; and fl p j p Fig. 8 shows in spaced relation to'each other the members forming thefrictional stop for the door holder.

In the above mentioned drawing, I have shown but one embodiment of the invention which is now deemed preferable, but it will be understood that changes and modifications may be made within the scope of the append 25 V ed claims.

Referring'more in detail to the figures of the drawing I provide a door check or closing q l.

is threaded throughthehole 19 in the first mechanism 10 of any well known type, this f check or closing means 10 is an arm 15. 7 At a being indicated merely in outline as it forms no partof'the present invention. The door stop. or holder may, andfrequently is, employed without any form of closing mechanism. This check 10 as shown in Fig. 1 is mounted upon an intermediate part of the I door 11 Whichis'hinged at the point 12 as i shown,to the door casing or frame 13. Attached to the oscillating shaftle of the door point in the'door casing or frame 13 is attached another arm 16 preferably by means i of a pivotal joint within a block 17 attached directly to the top of the door frame 13.

" This. latter arm 16 may, as shown, be made adjustableas to its length to adaptthe mechanismfor doors of different sizes-or proportions. a

The free ends of the two arms and 16 a are pivotally attached together by means which will beclearly evident'from an inspec= "surface of bearingmember or plate 25. and the noon nonnnn I i fse -nu ln iezegeei. ii

hole 19 extending vertically fth'erethrough. and lOcatedbCceritrically ofthe boss. Surrounding theboss 18 is a. bearing surface 20 bf'annular ffonh; The seeond arm Hills 131()- vided with a wedge member 21adapted to surround theboss 18and adaptedfto contact Wvith afibre or metaljwasher 22 mun-teaspon the bearingsur'face 20 The-wedge member 21 is tapered so as to be thinnerfat one than the other. "The second arm 16may "be hinged as shown at 23 in Figs. 1 and 2 relative to. thejwedge member 21 so that the the door andpermit the wedge member 21 to restfupon the bearing surface 20 in all positions of the arms 15am -16. Abeve the "wedge member is a bearing mem beror plate having anannular bearing surface and "having hole extending "vertically through said plate arid located eccentric'ally or; said denim :egseee, or nnw nnrrnm, conivno rrou'rinssienron i'ro Fran r HARDWARE conronn 'rron, OF; NEW BRITAIN, ooNN noTroUm; A CQBCPORATIONQF e vidd'a eyiinafiearbeeerelieving aithreaded holders adapted'to retain a door in any deem 16may be attached to the casing above *annular bearing surface. A washer 24: of

metal or fibre is placed between the lower upper; surfaceofthe wedge member 211. A pin bolt, or 'screw', 26, extending through T the hole m me-bearing member or pla'te 25 "arm 15 and is securedlby'ineans" of the nut 27 lockwasher 28 as shdwn clearly in Fig. 2. The bolt or pin 26 limits thelextent of I25 longitudinally otthe pin26;

[wedge Member 21"".abou t, the projection or "separation ofj'thearms 15 and -16andthe plate esslfionf i fit a .1 9; t atwhen i has been movedto a suificientlywi-de anglelit win, biaabee v nithe sur aces ,OIi-tll washers 2 nd2 a It is desirable, in this formofdoor holder memberaor iplate 2 5irelative to thefirst. arm

to preventrotation of the lxupper bearing purpose, the boss or projection 18 cm the first arm 15. is recessedeorlchanneled to form akey'slojt29 as. shownin Figi 3.x Similarly the underside; oftheupper member or, plate 25 channeledorimilled oiitt-tolformwaikey slot or recess 30 extending directly toward the axis of the bolt 26. Adapted to rest in these

key slots

29 and 30 is a thin key member 31 formed of sheet metal and sufiiciently wide so that it can be loosely mounted in both of said slots. The piece 31 as shown in Fig. 3 is bent to lie within the outer portion of the key slot 30 and also within the inner portion of the key slot 29 in the projection or boss 18 on the first arm 15. With this key member 31 in position as shown in Fig. 2, relative horizontal angular movement of the upper bearing member 25 relative to the bearing surface 20 on the first arm 15 is prevented. When the wedge member 21 is rotated relatively to the'bearing surface'20 and the bearing on the plate 25, as occurs when the door is opened, it will become jammed between the bearing surface 20 and the plate 25- after a certain degree of rotary movement and will hold the door at a predetermined angle. By adjusting the bolt or screw 26 extending through the threaded hole 19 in the first arm 15 the point at which thejamming action occurs may be varied.v The mechanism may be adjusted therefore to permit holdingthe door 11 in any desired openposition. This adjustment may be maintained by locking the bolt or screw 26 in position by means of the nut 27 and lock washer 28. i

In my patent above referred to I have provided a lug integral With the plate and fitting in a slot in one of the arms for the purpose of preventing relative rotation of the plate and the arm. It was found that the tilting of the plate (and hence of the lug) due to' the wedge action of the wedge member when the door was opened caused the lug to occasionally j am in the slot before the door had been opened to the desired point My present invention obviates this difiiculty by providing a thin key member 31' loosely mounted in the

key slots

29 and 30,in place of the lug used in my prior invention. The premature jamming referred'to is thereby prevented.

1. A door holder mechanism, comprising a pair of arms pivotally joined together, members having opposite bearing. surfaces adapted to cooperate with a wedge member for holding the door in a predetermined position, one-of said members being connected to one of said arms, a wedge member connected to the other of said arms positioned between said bearing surfaces, means for adjusting the distance between said members and a separate unitary member freely engaging said members having opposite bearing surfaces to hold them against relative rotation, but permit free relative oscillation of said members. I

2. A door holder mechanism, comprising a pair of arms pivotally oined together, members having opposite bearing surfaces adapted to cooperatewith' a wedge member for NORMAN B. HURD.