Door holder

Sept. 3, 1935. w. f. moore 2,013,418

DOOR HOLDER

Filed April 22, 1933 2 Sheets-Sheet 1

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Sept. 3, 193S. w. f. moore 2,013,418

DOOR HOLDER

Filed April 22, 1933 2 Sheets-Sheet 2

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INVENTOR,

Wallace F. Moore

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Patented Sept. 3, 1935

2,013,418

UNITED STATES PATENT OFFICE

2,013,418 DOOR. HOLDER

Wallace F. Moore, New Britain, Corin., assignor to The American Hardware Corporation, New Britain, Conn., a corporation of Connecticut

Application April· 22, 1933, Serial No. 667,317

Claims. (Cl. 292—263)

This invention relates to door holders' and particularly such devices of the type wherein means are provided for securing the door in open position at a predetermined limit of swing.

B One object of the invention is a novel and improved door holder mechanism which is readily adaptable to both right and left hand doors, which optionally automatically locks the door in the open . position, and which protects the door and mecha10 nism against undue shocks and strains at all times by permitting cushioned movements of the door in both directions. A further object of the invention is a door holder mechanism of this general character which is characterized by the simplicity 15 of its parts and mechanism, and by its ruggedness in construction and dependability in operation.

The several features whereby these and other objects may be attained will be readily understood from the following description arid accom20 panying drawings in which:

Fig. 1 is a plan view of a holder in open positiori embodying the invention;

Fig. 2 is a plan view of the holder in closed position;

Fig. 3 is a view at right angles to Fig. 2;

Fig. 3α is a sectional view on the line 3α—3α of Fig. 3;

Fig. 4 is a section on line 4—4 of Fig. 2;

Fig. 5 is a section on line 5—5 of Fig. 4;

Fig. 6 is an enlarged plan view of the door bracket partly in section and showing in full outline the position of one arm of the holder at stop position when on a door swinging in one direction and in dotted line when on a door swing35 ing in the opposites direction;

Fig. 7 is an. enlarged sectional view on the line 7—7 of Fig. 6; and

Fig. 8 is a section on the line 8—8 of Fig. 7.

I have illustrated my invention as embodied in 40' a door holding mechanism comprising a pair of. arms 1 and 2 pivotally connected together at 3 and pivotally fastened at their outer ends to· a door frame 4 and a door 5, respectively, the lat. ter being mounted upon the door frame by a 45 hinge 6.

The arm 2 is pivotally fastened to the door 5 by means of a bracket 7, the latter having a plate 8 which is secured flat against the door face, and a pair of ears or 'jaws 9 and 1.0 projecting outward50 ly from the plate 8' at right angles thereto. The arm 2 is in the form of a heavy bar reduced in thickness at its 'outer end to form a tang or plate ί I which is supported between the jaws 9 , and 10 of the bracket 7 and is pivotally fastened 55 thereto by means'of a removable pintle i 3 passing through' registering openings formed in . the. jaws 9 and 1() and the tang 11. The pintle 13 has a 'head .14 which is countersunk into a recess formed in the jaw 9, and the pintle is anchored in positiori by means of a lock screw 29. which is 5 screwed into the jaw 9 and engaging, a niche formed in the head 14. The tang H is provided with a stop lug or heel 15 on one side thereof, this lug haying an abutting face 15' which engages the face of the plate 8 and limits in one 10 direction the angular movement of the bar 2 with respect to the plate and door. The bracket 7'is' symmetrically constructed, that, is, the jaws 9 and 18 are disposed at right angles to the plate 8’and the'plate 8 projects to both sides thereof ₁₅in the planes of the jaws; and, as will hereinafter appear, the door holding mechanism may . be readily adapted to either a righthand or lefthand swinging door by merely reversing the. position of the bar 2 with respect to its top and bottom 20 faces or by turning it over with the lug or stop 15'disposed on the opposite side, in which.reverse, position the lug engages the opposite projecting side of the plate 8 at the limit of angular movement, . 25

There is a single locking means cooperating with this reversible bar arid stop lug and this comprises a hand'manipulated locking plunger 18 which is carried'by the jaw 10 of the bracket and cooperates with a recess 19 formed in the tang or plate 30 11. This, plunger is located eccentrically with respect tb the pivotal axis of pintle 13 and also symmetrically with respect to the projecting sides of the plate 8, that is in the plane including the axis of the pintle and disposed at, right angles 35 to the plate 8 in order to obtain the symmetrical disposition thereof, and in the particular embodiment' shown this plunger is located on the opposite side of the pintle from the plate 8.

The plunger 18 is supported in the depending 40 tubular housing 20, the latter being integrally formed with the lower jaw 10 of the bracket, and is normally urged upwardly through an opening 2'1' formed in the lower jaw 10 and registering with the tubular housing. Plunger 18 is normal- 45 ly urged upwardly by spring 22 held between collar 23 of plunger 18 and retaining washer 24, the washer 24 loosely surrounding the plunger and being held within the housing by a suitable bushing 25 which is screw threadedly attached to the 50 housing. Bushing 25 is provided with grooves 26 in which a pin 27 of latching plunger 18 slides when in operative position, the plunger being Placed in operative position when the pin 27 is aligned with the grooves 26. 55

2,013,418

The recess 19 formed in the tang 11 of the bar 2 is so positioned that when the stop lug 15 engages the plate 8 or the door the plunger 18 is in register therewith. The stop lug 15 projects out5 wardly from tang i I and is offset from the center line of the arm 2 and the abutting face 15' of lug 15 is disposed at an acute angle to the center line 30 of the bar 2. The locking recess or opening 19 is likewise offset from the bar 2 and 10 with the lug 15 in engagement with the door or plate 8 the center line of recess 19 is disposed in the plane passing through the axis of the pintle 13 and at right angles to the plate 8. In the particular embodiment shown, namely, where the 15 plunger 18 is disposed on the opposite side of the pintle 13 from the plate 8, the recess 19 is offset from bar 2 to the opposite side from the lug 15.

The inner ends of the arms 1 and 2, as above indicated, are joined together for relative swing20 ing movements. The inner end 40 of the arm I is offset from the main body thereof (Fig. 3) and is provided with a flat bearing surface cooperating with a similar flat bearing surface on the end 41 of the bar 2, the end 41 being slightly re25 duced in thickness from the thickness of the bar 2. The ends 40 and 41 are maintained in bearing engagement by means of a bolt 42 passing through registering openings formed therein, but this bolt 42 takes no part in the longitudinal 30 strain or force placed upon the two bars 1 and.

2, the registering openings of the two bars being slightly larger than the bolt 42 (Fig. 3α). The operating force or strains for holding the door are assumed directly by mating male and female 35 bearing parts on the bearing surfaces of the two bars, and in the particular embodiment shown the bar 1 is provided with an annular recess 43 surrounding the opening therein, while the bar 2 is provided with a cooperating male annular 40 bearing member or collar 44 which enters the recess 43 when the two bars are held together. These cooperating female and male parts are of comparatively shallow depth and are capable of transmitting the maximum strains put there45 upon with the desired factor of safety. The end of the bar 2 is, as above indicated, made symmetrical on both its upper and lower sides so that merely by reversing the position thereof it may be adapted to either a right hand or left hand 50 door. For this purpose the corresponding cooperating strain transmitting member on the end 41 of the bar 2 is duplicated on both sides thereof and accordingly the bar 2 is provided on one side with the cooperating member or part 44 and 55 on the opposite side with an identical part 44', the latter functioning with the cooperating part 43 of the bar 1 for the reversed position. The cooperating faces and bearing surfaces of the ends 40 and 41, including the male and female bearing parts 60 43, 44, 44' maintain the two bars I and 2 in alignment, take up the wear and assume the shearing forces or strains ordinarily put upon the pivotal axis and the fastening bolt functions merely as a means for holding the parts in cooperative 65 engagement and relation.

The outer end of the arm I is fastened in any suitable manner to the door frame 4. For example, as illustrated, a substantial or heavy bracket 46 is illustrated having a flat plate 47 70 with openings therein for securing the bracket flat against the frame member. The plate 47 is reduced in width and has integrally formed therewith, an ear or jaw member 48 with a pintle 49 passing through the ear or jaw 48 and plate 75 47 and functioning as a pivotal connection for the outer end of the bar I. The plate 47 has an elevated or thickened part 50 in the vicinity of the jaw 48 for forming a bearing surface and providing the desired clearance between the arm or bar I and the plate 47, the bar 1 having its 5 end flattened out, as indicated, at 51 with surfaces parallel to the plate.

The holder is also provided with means cooperatively related to the reversible bar 2 and the locking mechanism for absorbing shocks and 10 taking up undue strains which may be put thereupon during operation. For this purpose one of the members or arms I or 2 is provided with a cushioning and yielding means permitting a limited amount of longitudinal yielding in either 15 direction when it is attempted to force a door past the full open position in opening or in attempting to force the door in either direction when locked in stop position. In the particular embodiment shown the bar 1 is provided with 20 such means. It is formed in two parts an inner part 52 and an outer part 53, these two parts having telescopic sections 52' and 53' respectively. The telescoping section 53' comprises a screw-threadedly attached bushing 54 on the 25 outer end thereof. The telescoping section 52' comprises a reduced cylindrical part 56 which makes a slidable fit with the bushing 54 and is further reduced to form a stem 57 around which is disposed a compression spring 58, one end of 30 the spring engaging a washer 59 which in turn ^;;engages a pin 60 carried by and fixed to the stem 57. The other end of the spring engages both the shoulder 54' formed by the end of the bushing 54 and the shoulder 56' of the reduced cylindrical 35 part 56, the outer diameter of the spring being greater than the inner diameter of the bushing 54. The hollow telescoping part 53 is provided on the interior thereof with means engaging the collar 59 on the opposite side from that engaged 49 by the spring so that when the member 52 is moved to the right (Fig. 4) a force is exerted upon the spring, the other end of the spring being engaged by the shoulder formed by the reduced cylindrical part 56. In the particular embodiment shown herein this means comprises a sleeve 63 carried inside the hollow part 53' with one end of the sleeve engaging the collar 59 and the other end of the sleeve abutting the solid part of the member 53. The sleeve 63 is provided _o0with grooves 64 for accommodating the ends of the anchoring pin 60 and permitting the relative movement of the member 53 with respect to the member 52 (Fig. 4). The bushing 54 is provided with a skirt 66 in telescopic relation with the enlarged part 52'. The parts of the bar I may be readily assembled as follows:

The bushing 54 is inserted in position over the reduced cylindrical part 56 of the telescoping part 52', then the spring 58 is inserted over the go stem 57 and the collar 59 and pin 60 inserted in position with the spring engaging, the collar 59 at one end and engaging the shoulder 56' formed by the reduced part 56 at the other end. Then with the sleeve 63 inserted within the tel- 65 escoping part 53' the telescoping part 52' is inserted into the hollow part 53' with the collar 59 engaging the sleeve 63 and the pin 60 in registry with the slots 64 whereupon the bushing 54 may be screwed home to form a part of the hollow 70 telescopic part 53' with its shoulder in position to engage the spring 58 which, as above described, also engages the shoulder 56' formed by the reduced parts 56.

I have thus provided a rugged door holder 75.

2,013,418 mechanism which is adapted to various uses of such mechanisms and particularly adapted to withstand rough and heavy usage. With the door in closed position the plunger 18 rides upon the « flat surface of the tang 11 or end of the bar, but when the door is opened to the desired extent namely, when the face 15' of lug 15 abuts the door or plate 8 the plunger 18 being then in registry with the locking recess 19 formed in the tang II is ¹⁰ caused to enter this recess by the spring 22 and the door is thus retained in the open position until the plunger 18-is withdrawn from the recess 19. This may be done by grasping the handle 18' whereupon the door may again be closed either partly or entirely. If it is desired to render the automatic locking mechanism inoperative this may be done by turning the plunger 18 to cause the pins 27 to rest within the notches or niches formed in the head of the bushing 25, whereupon the door can be opened to its full extent without the automatic locking mechanism coming into operation. As above indicated, the shock absorbing mechanism cooperatively functions with the stop lug 15, the automatic locking mechanism including the plunger 18 and the strain or force transmitting means 43, 44, 44' to prevent undue strains and wear being placed thereupon by careless or inconsiderate door operators. For exampla> if it is attempted to open the door to a wider extent than that provided by the mechanism including the stop lug 15 the bar I is yieldingly extended in length, the spring 58 being compressed between the collar and pin 59 and 80 and the shoulder 54' formed by the bushing 54; and if it is ^J attempted to close the door while the door is automatically locked in the open position the mechanism similarly yields under the influence of the spring mechanism, the spring 58 being then compressed between the shoulder 56' formed by 40 the reduced parts 56 and 57 and the collar 59 which is prevented from movement by engaging the end of the sleeve 63, the pin 60 moving in the grooves 64 of the sleeve. This shock absorbing and yielding mechanism which forms a part of 45 the arms or bars, therefore, cooperatively functions with the locking means and the strain transmitting means 43, 44, 44' to protect the door holder against injury from rough and careless usage and minimizes the wear thereupon. More50 over, as above indicated, the holder is readily adaptable to either a right or left hand door with no modification in construction thereof needed and with the single automatic locking mechanism equally operative in both adaptations to function 55 with the shock absorbing means and the strain transmitting means above described as forming a part thereof. For example, while in the particular embodiment illustrated in Fig. 1 the door in opening swings counter-clockwise about its hinge CO 6 the mechanism is equally applicable to a door opening by turning about its hinge in a clockwise direction. Fig. 6 shows in full lines the application shown in Fig. 1, while the dot and dash lines show the relation of the bar 2 with respect to the 65 bracket 7 in the other application referred to.

Moreover, as above indicated, the adaptation from one character of door to the other is accomplished by disconnecting the bar 2 from the bar I and from the bracket 7, turning it about its length 70 through an angle of 180° so as to reverse its top and bottom faces and then securing it again to the bar I and the bracket 7, the bracket 7 beingstill secured to the door with the automatic locking mechanism depending from the under side 75 of the bracket, while the automatic locking mech3 anism, the strain transmitting means at the juncture of the bars I and 2 and the shock absorbing means forming a part thereof, function in the same advantageous manner in either adaptation of the holder. In the limiting position, 5 namely, with the stop ί 5 in engagement with the Plate 8, the restraining arms ί and 2 are still off the dead center, namely, they are disposed at an angle of less than 180° on the closing side or next to the hinge 6, and accordingly the door may be 10 readily closed when the locking plunger 18 is withdrawn.