US1958029A - Door fastener - Google Patents

Description

y 1934- P. A. BALLWANZ El AL 9 OOOOOOOOOO ER y 1934- P. A. BALLWANZ ET AL ,0

DOOR FASTENER Filed April 20, 1932 2 Sheets-Sheet 2 7 7 15 2 6725378 YWMW Patented May 8, 1934 PATENT; OFFICE DOOR FASTENER Paul A.

Ballwanz, Harry Hen'drickson, and

Richard 3. Jesse, Chicago, 111.; said Jesse assignor to said Ballwanz and said Hendrickson Application April 20, 1932,v Serial No. 606,304

7 Claims.

The present invention relates generally to fasteners for doors. More particularly, the invention relates to that type of door fastener which is adapted to supplement the regular lock in looking the door in its closed position, and to form a check or stop for restricting opening of the door, and comprises (1) a bracket which is adapted to be attached to the central part of one of the side members of the door frame; (2) a lock-member which is adapted to be attached to the door in close proximity to the regular door lock; and (3) an arm which is pivoted to the bracket, is adapted when the door is in its closed position to be swung across and locked to the door-member for 5 door locking purposes and has sliding contact with the lock-member so as to permit the door to be opened to a limited extent upon release of the arm from its locked opsition with respect to the lock-member.

One object of the invention is to provide a door fastener of this type which is an improvement upon and may be manufactured at a lower cost than previously designed fasteners of the same general character, by virtue of the fact that the bracket, arm and lock-member are all formed of metal stampings and are so constructed that they are exceedingly strong and well reinforced.

Another object of the invention is to provide a door fastener of the type under consideration in 39 which the bracket is formed from a rectangular piece of sheet metal and has the central portion thereof cut and stamped in a novel manner to form a pivot lug, and the arm is formed from a sheet metal strip and is centrally deflected and shaped so as to form at one end a pair of laterally spaced ears which lap the pivot lug and are connected to the latter by a stud or rivet so as to form a pivotal connection between the lug and arm. I

Another object of theinvention is to provide a door fastener of the last mentioned character in which the side margins of the arm coact with a pair of inwardly extending tongues on the lockmember to form the sliding connection between the arm and the lock-member, and the outer or distal end of the arm is bent into tubular form so as to form an abutment for limiting outward sliding movement of the member relatively to the arm.

A further object of the invention islto provide a door fastener of the aforementioned type and character in which the lock-member embodies novel means for locking the arm thereto when the door is in its closed position, and is shaped and constructed so that it cannot be moved vertically with respect to the arm when the latter is in its locked position.

A still further object of the invention is to provide a door fastener which is generally of new and improved construction and in which case of ac- 6 tion is combined with durability of construction.

Other objects of the invention and the various advantages and characteristics of the present fastener construction will be apparent from a considerationof the following detailed description.

The invention consists in the several novel features which are hereinafter set forth and are more particularly defined by the claims at the conclusion hereof.

In the drawings which accompany and form a part of this specification or disclosure and in which like numerals of reference denote corresponding parts throughout the several views:

Figure 1 is a perspective showing a fastener embodying the invention applied to a door, and the arm of the fastener in its locked position, that is, the position wherein it supplements the regular door lock in looking the door in its closed position; V

Figure 2 is a perspective showing the fastener in the position wherein the arm coacts with the lock-member to limit or restrict opening of the door;

Figure 3 is a perspective of the arm which is connected pivotally to the bracket;

Figure 4 is a perspective of the bracket, illustrating the manner in which the central portion of the bracket is stamped and deflected to form the pivot lug for the arm;

Figure 5 isa perspective of the lock-member, showing the two latch-elements which constitute the means for locking the arm to the lock-member;

Figure 6 is a perspective of the two latch-elements;

' Figure '7 is a vertical section of the lock-member, exhibiting the manner in which the two tongues coact with the side members of the arm to form a sliding connection between the arm and the lock-member; and

- Figure 8 is a transverse section of the lockmember, showing the arrangement of the latchelements and the manner in which the latter grip the side margins of the arm so as to hold the arm in locked relation with respect to the lock- 105 member.

The fastener which forms the subject matter of the invention is adapted primarily for use in connection with a door D and operates to supplementthe regular door look (not shown) in lock- 110 are practically contiguous.

ing the door in its closed position, and to limit opening of the door when the latter is unlocked. The door D is illustrated in the drawings as being of conventional construction and is mounted within a frame D so as to swing horizontally on a vertical axis. The fastener is preferably positioned above the door knobfnot shown) and the regular lock, and consists of a bracket 9, an arm and a lock-member 11. All of these three parts are formed of sheet metal stampings in order to reduce to a minimum the cost of manufacture.

The bracket 9 consists of a rectangular sheet metal plate 12 which is secured to the door frame D by means of screws 13. The latter extend through holes 14 in the corners of the plate and serve to clamp the bracket firmly against the inner face of the door frame D. The side margins of the plate 12 are cut away as at 15, so as.

to form a comparatively narrow neck in the central portion of the plate. This neck is bent centrally and at the junctures with the endparts of the plate, so as to form a pivot lug 16 which consists of a pair of vertically spaced walls 17 and an outer connecting wall 18. The walls 17 extend at right angles to the end parts of the plate and embody a pair of vertically aligned holes 19, as shown in Figure 4 of the drawings. The intermediate wall 18 is shaped so that it is substantially semi-circular in conformation and serves to space apart the walls 1'7. In forming the pivot lug, the end parts of the plate are shifted together so that the inner edges thereof By utilizing stamped sheet metal in the fabrication or formation of the bracket, the cost of making the bracket is reduced to a minimum and the bracket is exceedingly rigid and well reinforced.

The arm 10 is adapted, as hereinafter described, to be swungacross and locked to the lock-member 11 when it is desired to lock the door in its closed position, and has a sliding connection with the lock-member so as to permit the door to be opened to a limited extent. It is formed of a strip 20 of sheet metal. This strip is centrally and longitudinally deflected or stamped so as to form a pair of vertically spaced walls 21 and an intermediate wall 22. These walls form an open-sided channel 23 in the central portion of the arm and operate to reinforce the arm so that it is well adapted for the use to which it is put. At one end of the strip, the walls 21 are shaped to form a pair of ears 24 which lap the walls 1'7 of the pivot lug 16 and are connected pivotally to the bracket by means of a rivet or stud 25. The latter, as shown in Figures 1 and 2 of the drawings, extends through the ears 24 and is confined in the holes 19 in the walls '17 of the pivot lug. At the other end of the strip, the walls 21 are somewhat tapered in form and merge with the side margins of the strip. The intermediate wall 22 is arcuate in cross sec-- tion and serves to space apart the walls 21. At the distal or outer end of the arm, the strip 20 is bent into tubular form so as to form a substantially cylindrical abutment 26. This abutment is adapted, as: hereinafter described, to limit sliding movement of the lock-member. The ends of'the side margins of the strip that are opposite the ears 24 are cut away so that the side margins terminate substantially midway between the central portion of the bracket and the inner or pivoted end. The bracket 9 is adapted to be attached to the door frame D so that the arm 10 extends substantially horizontally and may be swung across the door D, as shown in Figure l.

The lock-member 11 is formed from a substantially rectangular plate 2'7 of sheet metal. This plate is stamped or bent so as to form a front wall 28, a top wall 29, a bottom wall and a pair of flanges 31. The flanges 31 project outwardly from the top and bottom walls and are arranged so that they are substantially coplanar. The lock-member 11 is adapted to be secured to the door D at a point directly opposite the bracket 9, and is preferably secured in place by means of screws 32. The latter extend through holes 33 in the flanges 31 and serve to clamp the lockmember against the inner face of the door. The walls 29 and 30 define with the front wall 28 an open-ended compartment 34 and operate to space the front wall a sufiicient distance from the front face of the door D so that it is substantially coplanar or aligned with the bracket 9 when the door is in its closed position. When the door is in this position, the arm 10 is adapted to be swung across the front wall 28 of the bracket, as shown in Figure 1. In order to effect a sliding connection between the lock-member 11 and the bracket 9, the end of the front wall 28 nearest the bracket is shaped to form a pair of oppositely facing tongues 35. These tongues are spaced from the adjacent end edge of the front wall and form therewith a pair of slideways 36 for the side margins of the arm 10. When the door D is closed and the arm 10 is swung across the front wall 28 of the lock-member, the inner ends of the side margins of the arm are positioned opposite the slideways 36. Upon initial opening of the door, the lock-member 11 which is swung away from the bracket 9 shifts the arm 10 into a position wherein the inner ends of the side margins of the arm are within the slideways 36. As the door is opened further, the lock-memoer slides towards the outer or distal end of the arm until it is arrested by engagement of the front wall 28 with the abutment 26. In this position of the lock-member, the door D is held against further opening thereof. When it is desired to open the door D to its fullest extent, the door is first closed in order to bring the lockmember 11 opposite the bracket 9 and efiect withdrawal of the side margins of the arm 10 from the slideways 36. Thereafter, the arm- 10 is swung clear of thedoor so as to permit the latter to be opened without interference from the arm. The tongues 35 are positioned so that they eX- tend slightly outwardly of the front wall 28 of the lock-member. By arranging the tongues in this manner, the inner ends of the side margins of the arm 10 may enter the slideways 36 without interference.

In order to lock the arm 10 against the lockmember 11 so as to secure the door D in its closed position, a pair of latch-elements 3'7 and 38 are provided. 'These elements are formed of sheet metal stampings and are disposed at the end of the lock-member that is opposite to the tongues 35. The latch-element 3'7 is mounted for vertical sliding movement in a pair of vertically aligned slots 39 in the top and bottom walls of the lock-member, and embodies at its lower end a hook 37 for engagement with the lower side margin of the arm 10. The latchelement 38 fits against the latch-element 3'7 and is slidable vertically in the slots 39. The upper end of the element 38 is provided with a hook 33 which is adapted'to engage and grip the upper side margin of the arm 10. A spring 40 its is applied to the latch-elements in such amanner that the hooks are urged towards one another into hooked relation with the side margins of arm. This spring is housed. within the cornpartment 34, embodies a pair of arms or and is anchored or attached to a tongue 42 which is struck inwardly from, and is formedintegrally with the front wall 28 of the lock-member. The arms 41 of the spring extend alongside of the inner face of the front wall 28 and extend through longitudinal slots 43 in the central portions of the latch-elements. The spring is constructed so that the arms 41 spring outwardly or away from one another and thus urge the latch-members into hooked relation with the side margins of the arm. The upper end of the latch-element's"? and the lower end of the latch" element 38 are extended so that they may be manipulated in order to shift apart the hooks when it is desired to release the arm from the latch-elements. To facilitate locking of the arm if) to the lock-member, the outer parts of the hooks 37 and 38 are provided with inclined sur faces is. These surfaces are adapted to be engaged by the side margins of the arm 10 and operate in response to shift of the against the front wall or" the lock-member, to separate the hooks 37 and 38 for entry of the side mar gins of the arm within the hooks. when the arm 10 is swung against the front wall the side margins of the arm strike against the inclined surfaces 44 and force the hooks apart until they snap over the side margins of the arm and lock the arm in place. To release the arm, the latch-element 37 is depressed and the latch-element 38 is raised so as to free the hooks the side margins of the arm.

In order to prevent vertical movement of the lock-member relatively to the arm when the arm is in its locked position and thus reduce the possi bility of releasing the from the lock-member by springing the door D, the top and bottom por tions of the front wall 28 of the lock-member are shaped so as to form horizontal ribs 45. These ribs, as shown in Figure '7, engage and lap the side edges of the arm 10 when the latter is locked in place against the lock-member by the lockelements 37 and 38. To assist the ribs in holding the look-member against vertical movement with respect to the arm, the front wall 28 of the lockmember is provided with a lug 46. This lug is formed integrally with and extends at right angles to the front wall 28, and fits within the channel 23 in the arm when the arm is locked to the lock member if.

The herein described door fastener may be produced at an extremely low cost by virtue of the fact that it consists for the most part, of sheet metal stampings. It is exceedingly efficient in operation and requires no manipulation to lock it other than shift of the arm 10 against the front wall of the look-member. This is attributable to the fact that the latch-elements automatically snap into their operative position in response to action of the side margins of the arm upon the inclined surfaces 44. 1

The invention is not to be understood restricted to the details set forth, since these may be modified within the scope of the appended claims, without departing from the spirit and scope of the invention.

Having thus described the invention, what we claim as new and desire to secure by Letters Patent, is:

1. A door fastener of the character described,

comprising in combination a bracket for the door frame provided with a horizontal pivot lug, an arm stamped from a strip of sheet metal and having one end thereof bent laterally into tubular formation to form an abutment and its central portion deflected longitudinally and shaped so that it is of channel formation and embodies at the other end of the arm a pair of vertically spaced ears'extending beyond the side margins of the arm, said ears being arranged to straddle the lug and having a pivotal connection therewith in order to permit the arm to swing horizontally, and a lock-member for the door provided with means adapted to engage and slide upon the side margins of the arm in response to opening of the door and having a part adapted to engage the abutment and to coact therewith to limit opening of the door.

A door fast of the character described,

compring in combination a bracket for the door frame provided with a pivot lug, an arm having one end "thereof c feet-ed pivotally to the lug for horizontal swinging movement, a lock-memher for the door having means for engaging the arm slidably in order to form a connection whereby opening of th door is limited, and adapted when the door is in closed position to have the rm swung thereag st, a latch-element for locking the arm to the member for door-locking purposes card by the 10-Cl il8l er so that it is vertically shdable and provided with a hooked part for engaging one of the side margins of the and a spring applied to the element for s ting the latter vertically into hooked relation with said one side margin of the arm.

3. A door fastener of the character described, comprising in combination a bracket for the door frame provided with a pivot lug, an arm having one end thereof connected pivotally to the lug for horizontal swinging, movement, a lock-member for the door having means for engaging the arm slidably in order'to form a connectionwhereby opening of the door is limited, adapted when the door is in its closed position to have the arm swung thereagainst, a pair of elongated, vertically extending latch-elements for locking the arm to the member for door-locking purposes, carried by the lock-member in side-by-side relation and so that they are slidable vertically, one of the latch elements being provided at its upper end with a hooked part for engaging the top margin of the arm and the other element being provided at its lower end with a hooked part for engaging the lower side margin of said arm, and spring means applied to said latch elements so as to urge the hooked parts into engagement with the side margins of the arm, the ends of the latch elements without the hooks being arranged and extended with respect to the lock-member so that they may be manipulated in order to shift the elements out of their hooked position and thus release the arm.

a. A door fastener of the character described, comprising in combination a bracket for the door frame provided with a horizontal pivot lug, an

arm having one end thereof connected pivotally to the luv for iorizontal swinging movement, a lock-member for the door having means for engaging the arm slidably in order to form a connection whereby opening of the door is limited,

and stamped from a plate of sheet metal so that it comprises a front wall and top and bottom walls for spacing the front wall from the door,

said lock-member being adapted to have the arm swung against the front wall thereof when the door is in its closed position, and a latch-element for locking the arm to the member for door-locking purposes, extending between and mounted for vertical sliding movement in slots in the top and bottom walls and provided with a hooked part at one end thereof for gripping or engaging one of the side margins of the arm.

5. A door fastener of the character described, comprising in combination a bracket for the door frame provided with a horizontal pivot lug, an arm having one end thereof connected pivotally to the lug for horizontal swinging movement, a lock-member for the door having means for engaging the'arm slidably in order to form a connection whereby opening of the door is limited, and stamped from a plate of sheet metal so that it comprises a front wall and top and bottom walls for spacing the front wall from the door, said lock-member being adapted to have the arm swung against the front wall thereof when the door is in its closed position, a pair of elongated, vertically extending latch-elements for locking the arm to the member for door-locking purposes, mounted in slots in the top and bottom walls to slide vertically to and from one another, one of said latch elements being provided at its upper end with a hooked part for engaging the upper side margin of the arm and the other element being provided at its lower end With a hooked part for engaging the lower side margin of the arm, and a spring positioned Within the space between said top and bottom walls for shifting the latch-elements towards one another in order to bring the hooked parts into engagement with the side margins of the arm, the ends of the latch-elements without the hooks being arranged so that they project through the slots and outwardly .of the lock-member in order that they may be manipulated to release the latchelements from the arm.

6. A door fastener of the character described, comprising in combination a bracket for the door frame provided with a horizontal pivot lug, an arm having one end thereof connected pivotally to the lug for horizontal swinging movement and embodying a longitudinal channel in the central portion thereof, a lock-member for the door having means for engaging the arm slidably in order to form a connection whereby opening of the door is limited and adapted, when the door is in its closed position, to have the arm swung and locked thereagainst, and a lug on the lock-member arranged to enter the channel in the arm and lock the lock-member against vertical movement with respect to the arm when the arm is swung against the lock-member.

7. A door fastener of the character described, comprising in combination a bracket for the door frame provided with a pivot lug, an arm having one end thereof connected to the lug for horizontal swinging movement, a lock-member for the door having means for engaging the arm slidably in order to form a connection whereby opening of the door is limited, said lock-member being stamped from a plate of sheet metal so that it comprises a front wall and top and bottom walls for spacing the front wall from the door, said lock-member also being adapted to have the arm swung against the front wall thereof when the door is in its closed position and having the portions thereof at the junctures of the front wall with the top and bottom walls deflected outwardly to form a pair of horizontally extending ribs for engaging the side margins of the arm and holding the lock-member against vertical movement with respect to the arm when the arm is swung against said lock-member, and a latch element on the lock-member for locking the arm to said member for door-locking purposes.

PAUL A. BALLWANZ. HARRY HENDRICKSON. RICHARD J. JESSE.

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