US 1986677 A
Description (OCR text may contain errors)
Jan. 1,1935. 4 E. H. JOHNSON 1,986,677
BUILDERS HARDWARE Filed March 14. 1952 2 sheets-sheet 1 26 za) l f ,MW Mw Jan. l, 1935.v Y E. H. JoHNsoN l l l BUILDERS` HARDWARE Filed March 14, 1932 2 Sheets-Sheet 2 @f f@ BZ 75 u 80 130 muisarm 1, 193s 1,986,677
Bumpers mnwm "f Application March 14, 1932,l No. V598,'1'11 y comms. (onzin-27s) f invention relates to Builders hardware and 14.; 'rms construction makes une nut 42' a mere includes" among "its'objects andadvantages'the -`lock nutto keep the pintle fromfshifting a'nd provisionof an improved door holder. tightening or loosening the connection between In theQaccOmpanying'dIaWingSy the arm 10 and the bracket 14. Meansfor holdl 1" fis a side elevation-fof a" portion of a. ing the nut 4 2 vagainst relative 'movement on Vthe 5 *door `-sliowingfrrnfr yinvention''applied thereto; threaded' portion 40 comprises `a. lock washer 44 is a view taken alongVv the fpositioned upon the threaded portion 40 between *line 2l2 ofi; j f "1 l the nut 42 and the bracket 14. The cylindrical Figure is an enlargedjsecticnal view taken portion 36 is slightlylonger than the opening 38, loalong the line 3`'3\of Figure y1; y "`so that vits end contacts with the -bracket 1 4. 10 "`Fig`u1"e 4. isasctional view" taken" along the I'hus it'will be seen that while thev pintle is Aline 4-4 of Figure 1; lfirmly secured against relative movement with 'Figure 5 isa side elevation of a portion of the the bracket v14, the cylindrical portion 36 is' perdoor holder; mitted rotative movement within the opening 38.
l5 vFigure 6is a--plan v ie'w ofthe structure shown A thin washer 46 isplaced between the arm 10 and 15 26 f mechanism;
in Figure 5; y `4thebracket 14 upon the cylindrical portion 36. Figure 'Is a`sectional view taken along-the This washer separates the arm 10 from the line -7-7 of Figure-6; i bracket 14 a desirable distance so that complete Figure 8 is a view illustrating the releasing freedom of movement between vthese two parts l I' is permitted.' The -head'48-of the pintle'is po- 20 Figure 9is a sectional view taken along the lsitioned within 'a recess 50'in the arm 10 subline 9-9 of Figure 7; stantially flush with the upper face of the arm. Figure 10 is ay perspective of a cam member; The pivotal connection 22 between the arm 10 Figure 11 is a perspective'jview of a sleeve and the bar 24 comprises a pintle 52 (see Fig- 26 associated with theA cam member," ure 3) having a cylindrical portion 54 passing 25 Figure v12 is a perspective viewy of` a washer through an opening 56 in the arm 10. The associated with the sleeve; threaded portion 58 of the pintle is threaded into Figure 13 isy an end view of a portiony of my the sliding bar 24. When the pintle is turned device; and down to the position shown in Figure 3, the end Figure 14 is a diagrammatic view illustrating of the cylindrical portion 54 will bear against 3o the door 'holder-'applied toa door `of the 'double the sliding member 24 so that the pintle is held acting type. i n against turning relatively to the `sliding bar.
The embodiment selected to illustrate the in- Thus it will be seen that thearm 10 is pervention is for use with either'single or doublemitted rotative movement upon the cylindrical acting doors and comprises an arm 10 pivotally portion 54. The head 60 of the pintle 52 is 35 connected at 12 (see Figure 2) with a door positioned within a recess 62 in the arm l0.
bracket 14. Arecess 16 is cut in the upper end It will be noted in referring to Figure 3, that vof the door 18 for receiving the bracket. Screws the sliding bar 24 is substantially T-shaped in `20 secure the bracket tothe door.` The opposite cross section, and that the guide member is end of the arm is pivotally connected at 22 with slotted and grooved toconform to the shape of 40' vajsliding bar 24 associated with a guide member the sliding bar. Both parts are made from ma- 26. The guide member 26"is positioned within' terial of the samethickness. One end of the a recess 28 in thecasingv30 with which` the door sliding bar is cut away as at 64 (see IFigure 6) i 10 is associated through the medium of spring to provide a head 66. This head is provided with hinges 32 which tend'to' close the door.` 4Screws a cam surface 68 and a recessV 70 for receiving 45 y33 secure the guide member to' the casing'. The a roller'72 (see Figures 5, 7, and 8) when the bar 24 is arranged' to slide to" and fro along the door has been moved to its open position as illusguide member 26 to permit the door to be moved trated in Figure 2. The roller '10 is loosely upon its hinges 32 in the ordinary manner. mounted upon a pin 74 carried by one end of a In Figure 4 yI have detailed' the pivotal conlever 76. The lever is positioned between a pair 50 nection between the arm 10 and the door bracket of lugs 78 formed integrally with the carriage 14. The pivotal connection comprises a pintle 34 and fulcrums upon a pin 80 carried by the lugs.
having a cylindrical portion 36 passing through The normal position of the lever when the head an opening' 38 in the arm 10 `and a threaded 66 is disengaged from the roller end, is indicated portion 40 threaded through'the door bracket in Figure 5. Shoulders '19 upon the lever '16 en- 55 gage the lugs 78 for limiting the downward movement of the roller end of the lever so that the roller cannot move below the lower end of the cam surface 68. 'Ihe lever is yieldingly held in this position by means of a spring 82 mounted upon a roller end of the lever 76 which compresses the spring 82. As soon as the head 66 has been moved sufficiently far to properly align the recess 70 with the roller 72, the latter will snap into the recess by reason of the spring 82. 'Ihe roller 72 is resiliently urged in the direction of the head 66 Y with a forcesunicient to hold the door against a closing force materially greater than that of the closing spring for the door` but materially less than the hinges will stand without injury, so that the application of a reasonably small additional force will enable the user to close the door merely by pushing on it.
I iind that good results can be obtained by positioning the door holder with respect to the hinges 32 in such a manner that the head 66 of the sliding member will be connected with the lever 76 when the door has been swung 90 from its closed position. It is desirable to provide cushioning means for damping the shock occurring when the door is moved abruptly to the open position shown in Figure 2. I have illustrated a block 94 which is positioned in a spring chamber 96 transversely of the -head 66. The head is shaped to pass between the 4lugs 78 against which the block 94 is yieldingly held by means of a pair of springs 98. lThe block is bored at 100 for receiving pins 102 upon which the springs 98 are mounted. One end of each spring bears against the end of the spring chamber, as at 104. The springs are placed in position with the necessary amount of initial tension. The pins 102 are threaded upon their inner ends 106 and threaded into openings 108 in the guide member. This feature is'clearly brought out in Figure 7. A screw driver may be inserted in slots 110in the exposed ends of the pins for assembling or removing the mechanism associated with the pins.
The end of the head 66 bears against the block 94 when the roller 72 is finally positioned within the recess 70. When the head 66 strikes the block 94, any remaining forcein excess of that which is necessary to swing the door to its open position is absorbed in the compression of the springs 98. Shoulders 112 limit the amount the springs may be compressed by striking against the edges 114 of the lugs 78. Such striking does not generally occur during the normal opening and closing of the door. Referring now to Figure 7, I have shown the manner in which the lever 76 is moved during the cushioning action. It will be noted that one side of the recess 70 inclines gently as at 115, so that the roller 72 may move easily up the incline when the door is moved beyond its normal open position. The cushioning function 'of the springs 98 is effective only during such movement of the roller up the incline. In Figure 7, the full line illustration of the lever and the head 66 shows the manner in which the cushioning function is brought about, and the dotted line showing illustrates the roller positioned in the recess for holding the door in the open position shown in Figure 1. As soon as the excess force has been-absorbed, the springs 98 move the head 66 back to the dotted line position and the roller comes to rest at the bottom of the recess 70.
I have provided means for rendering the door holder inoperative for holding the door open. In Figure 7, I have shown the `washer 88 as being positioned upon a slidable cam block 116. In Figure 8 the cam block is shown as being shifted suflioiently forward to render the spring 82 inoperative for holding the roller 72 in the recess 70. In referring to Figure 9, it will be noted that the sleeve 84 is slidably mounted upon a pin 118 secured to the bottom of the spring chamber 96. 'Ihe lower end of the sleeve is flattened at 120 and slidably positioned within a slot 122 in the cam block. lI 'he lower end of-the sleeve passes through the washer 88 andl is provided with anges 124 for preventing the washer from dropping oi the sleeve when it is not supported by the cam block. Referring now to Figure 13, it will be noted that the end of the guide member is slotted as at 126, and is provided with ribs 128 which ride within grooves 130 in a grip member 132 which is welded to the cam block. 'Ihe cam block is of material having high wear resisting properties. The grip portion 132 is of the same material as the carriage 10 to eliminate color contrast. The grip member 132 terminates substantially flush with the lower face of the guide member, as illustrated in Figure 8. Ordinarily the flange 124 will rest upon the thin extensions 134 upon the cam block when it is shifted to the position shown in Figure 8. The cam block may be easily shifted for lifting the washer to a position where it will rest upon the upper face of the cam block, as shown in Figure 7. When the cam block is positioned as in Figure 8, the door may be opened and closed without being influenced by the lever 76.
The door holder is substantially concealed from view and is so constructed that no parts project beyond the casing or the door when the door is closed. I have recessed the guide member 26 to accommodate the arm 10, so that no part of the arm will project .beyond the contour of thel guide member when the door is in its closed position. This construction provides a compact arrangement of the parts.
In Figure 14, I have illustrated my door holder in connection with a door 136 of the doubleacting type. 'I'he guide member 26 is shown as being fastened to the door rather than the door casing. In any installation, the guide member may be associated with the door or the door casing. I'have shown the door 136 associated with a wall structure 138, and the door provided with the usual hinge means 140 of the type permitting the door to swing to a full open position in either direction, as illustrated.
Without further elaboration the foregoing will so fully explain my invention that others may, by applying current knowledge, readily adapt the same for use under various conditions oi service.
1. The combination with a casing element and a door element hingedly associated therewith, of a guide structure embedded in one of said elements, a slidemember associated with said guide structure and having a cam surface and a holding surface, a link having one end pivotally connected with said sliding member and the opposaid elements, a roller normally mounted in the path of said cam surface, means for yieldingly mounting said roller, movement of the door to an open position causing the cam surface to engage the roller and move beyond the same to permit engagement of the roller with said -holdlng `surface to yieldingly resist closing movementof the door, said roller being yieldingly held in contact with said holding surface with'suiiicient force to resist normal forces on the door, but yieldable to permit the door to closeA upon application.A
` a door element hingedly associated therewith,
of a guide structure embedded in Vone of said elements, a slide member associated with said guide member and having a cam surface and a holdingsurface, a link having one end pivotally connected with said sliding member and the opposite end pivotally connected with the other of said elements, a roller normally mounted in the path of said cam surface, means for yieldirigly mounting said rollermovement of the door to an open position causing the cam surface to ent gage the roller and move beyond the same to permit engagement of the roller withsaid holding surface toyieldingly resist closing movement of the door, said roller being yieldingly held incontact with said holding surface with suflicient force to resist normal forces on the door but yieldable to permit the door to close upon application 'of an abnormal force, and buifer means arranged in the path of the sliding element to yieldingly resist further movement of the sliding element after engagement of the roller with said holding surface. t
3. The combination with a door casing structure, and a doorustructure pivotally connected to said frame structure to swing open in either direction, of a guide housed in one of said structures, a slide slidable in said guide, a link pivotally connected at one end to said slide and at the other end to said other structure, said guide and link when in closed position occupying a space flush with the surface of the structure housing said guide, said guide being of greater length than said link and having a recess shaped to llt and house said link when in closed position, said recess being open on both sides to letsaid link swing out in either direction, said link moving rsaid slide toward the pivotal axis of said door structure on opening movement in either direction, cushioning means at the end of said guide nearest said pivotal axis inaccessible to the operator and operative at alltimes for cushioning an opening movement in either direction, retaining meansindependent of said cushioning means and actuated by said slide upon movement of the parts to open position, for
ture, and a door structure pivotally connected vto 1,986.0 f `site end pivotally connected with the `other of saidcasingstructm'e,ofaguidehousedinoneof saidstructureaaslidememberslidableinsaid guide, a link pivotally connected at one end to said slide member and at the other end to said other structure, said guide and link when the door is in its closed position terminating flush with the surface of the structure housing said guide, said guide being of greater length than the link and-having a recessshapedtotandhouse the link when the `door is in its closed position, said link moving said slide member-toward the pivotal axis of said door structure during the opening movement of 'the latter, cushioning means at the end of the guide next said pivotal axis operativev at all times for cushioning the door when it is opened a predetermined amount. retaining means independent of said` cushioning means and actuated by said slide member upon movement of the door to its open position, for yieldingly resisting closing of the door up to a predetermined force, and manually adjustable means for conditioning said retaining means to be operative or inoperative.
5. The combination with a casing element and a door element hingedly associated therewith, of a guide structure embedded in one of said elements, a slide member associated with said guide structure, a link having one end pivotally -connected with said slide'member and the opposite end pivotally connected with the other of said elements, resilient retaining means for catching said slide in the position corresponding to the open position of the door element, and readily accessible manual adjustment means for preconditioning said retaining means to be operative or inoperative;
6. The combination with a casing element, a door element hingedly associated therewith, and a spring means tending to close said door; of a guide structure carried by one of said elements; a slide structure associated with said guide structure and slidable along the same: a link having one end pivotally connected with said slide structure, and the other end connected with the other of said elements to move said slide structureuponV movement of said door; a cam on one of said'structures and a camholding member on the other structure; said cam member having a gently inclined comming surface and a steeply inclined holding surface. 'inclined in `opposite directions; resilient means holding one of said members in position to engage the other when the doorisopened; saidcammingsurfacebeingposidoor.
ELVIN H. JOHNSON.