US2495287A

US2495287A - Trunk lock

Info

Publication number: US2495287A
Application number: US722360A
Authority: US
Inventors: Harry A Cooper
Original assignee: Yale and Towne Manufacturing Co
Current assignee: Yale and Towne Manufacturing Co
Priority date: 1947-01-16
Filing date: 1947-01-16
Publication date: 1950-01-24
Anticipated expiration: 1967-01-24

Description

Filnd Jan. 16, 1947 25 k 1 INVENTOR 2 H A a/:7 o

ATTORNEY Patented Jan. 24, 1950 UNITED STATES PATENT- OFFICE TRUNK LOCK Harry A. Cooper, Stamford, Conn, assignor to The Yale & Towne Manufacturing Company; starnford, Conn, a corporationofi Connecticut- Application January 16, 1947, Serial No. 722,360

I V This invention relates to a, lock and more particularly to that type of lock used for locking trunks.

The usual trunk lock comprises a hasp that is pivoted to one part of thetrunk and is adapted to interlock. with another partof the trunk through the medium of locking mechanism carried by the hasp. Generally, but not necessarily, this locking mechanism comprises a bolt or bolts movable relativelyt'o. the. hasp by akey controlled mechanism, there being providedpn the other part of the trunk, usually the cover,a, cupshaped strike into which the bolts may enter. Those skilled in the art will recognizefthat the particular combination outlined is well known and used very widely.

It has become customary in the trunk art to secure the locking mechanism to the hasp through means of rivets, and. then to hinge the hasp relatively to a hinge support that is itself riveted. Not only is this riveting relatively expensive, but it is not pleasing tov the eye and. renders the lock subject to attack, as the rivets may be filed away and otherwise removed. It is the object of my invention to contribute a trunk lock of the hasp type in which rivetswill be eliminated so that the hasp will present an 'outer smooth streamlined surface appearance such as is highly desirable in the art. It is a furtherobject of my invention to mount the hasp in position, and to secure to the hasp the locking mechanism, in a simple and most effective manner I have thus outlined the general nature of my invention and itsrelation to the prior art in order that the description thereof that follows may be better understood, and in order that my contribution to the art may be better appreciated. There are, of course, additional features of my invention that will be described hereinafter and which will form the subject of the claims appended hereto. Those skilled in they art will appreciate. that the conception on which mydisclosure is based; may readily be utilized as. the basis for the. designing of other structures for carrying out the several purposes of my invention, and that my claims" should not be limited to the structure herein shown and described.

Referring'now to the drawings, Fig. 1 is a perspective view of the hasp of my invention. Fig. 2 is a section 'taken'along lines 2-2 of Fig. 1. Fig. 3 is a perspective viewof the underside of the hasp and illustratingthe lock assembly removed therefrom anein exploded'relation there to. Fig. 4 is a section taken alo'ng" lines 4-4 r 17 Claims. (o1; 70-75) Fig. 2, while Fig. 5 5-45 of Fig. 2.

Referring now more particularly to the drawings, the hasp of my invention is indicated generally by reference numeral Ii), and in the preferred form of my invention, it is formed of sheet metal. By suitably bending the sheet metal, flanges I! are formed at the sides of the 'hasp, while by sui'tablecutting and bending, one end of the hasp is shaped'into a curved flange. or lip f2. Prior toithis bending of the flanges, a hole. I3 is formed through the face of the hasp, and grooves I 4 in the metal forming the'sid flanges V V V p The forming of these grooves. I 4 is probably best illustrated in Fig.5. Thus; a shearing tool is driven into the metal, bending it assh'own in dotted lines at Ma in Fig. 5, this bending resulting from the shaping of the groove l4, and forming what is in effect a protuberance. "Thereafter, the protuberance at [4a is el inated by'grinding and? polishing. Therefore, a smoothouter surface remains on. each of the flanges H, while on the inside surfaces of the flanges four shallow grooves M are present for the purposes to be indicated hereinafter. It will. be well to add at this point that the grooves! will be sl ghtly inclined vertically relatively't'o' the flanges H for a purpose to be indicatedhelow.

A locking assembly for the hasp is designated generally by reference letter L', and here comprises a cup-shaped member l5 formed of sheet metal and having openings l'lil for a pair of latchbolts [1. Through an integral flange" the cupshaped member I5 is secured by rivets l9 to what I term a mounting plate 20'. Mounted within the cup-'shaped member 15 is a suitable key plug 2| rotating relatively to. a neck 22 forming part of the lock assembly and extending from the mechanism within the cupshapfid member f5. Those skilled. in the art. will appreciate that everything in'the locking assembly is well. known in the art, and is not per se my'i'nvention. However, itshould be emphas zed th t h oun n p e 20 I161; conyentional, and is' assembled to the locking assembly to form. a part thereof and; thereby effecting its iunctioning as part'of the novel combination of this invention.

The mounting plate 20 isiformed with integral downwardly bent lugs 23 as best seen in'Fig. these lugsv being adapted" to rest on the inner surface liia' of the face of' the hasp Hi and to maintain the locking assembly in properposition.

is asection taken along lines filhe plate 21] is further formed with an upwardly bent flange 2'4" having curved lugs 25' at each' end thereof so bent as to lie initially as shown best in Fig. in dotted lines, whereby not to interfere with the placing of the lock assembly between the flanges I l of the hasp.

With the lugs 25 bent as shown in dotted lines in Fig. 5 and as shown in full lines in Fig. 3, the locking assembly L is moved in position between the two flanges ll until the neck 22 snaps into the hole I3 while one end of the mounting plate and a part of the flange I8 of the cup-shaped member l5 lie under the curved lip 12 at one end of the hasp. At this point, the two lugs are bent from their dotted line position of Fig. 5 into their full line position and into the grooves 14. Because the grooves M are inclined as earlier set forth, the movement of the lugs 25 therein, serves to draw the locking assembly H downwardly and firmly into position through coaction of the lugs 25 with the inclined groove walls. It is now obvious that the locking assembly will be fully, and completely secured to the hasp I0. It will be appreciated that while this securing is full, complete and very adequate for the particular purpose, no rivets or other fastening means are required.

Referring now to the left end of the hasp H? as seen in Fig. 3, it will be noted that the metal 28 integral with the metal of the front of the said hasp is slotted at 30 and then curled about a hinge pin 3| best seen .in Fig. 2, and then downwardly against the inner face Illa of the hasp I ID. The ends of the sheet metal 28 thus lying against the inner surface Illa of the hasp are bent upwardly at 32, with the outer ends 33 in the form of lugs similar to the lugs 25 and similarly bent so that the sheet metal 28 may move into the position illustrated in Fig. 3 with the lugs 33 not preventing such movement. Thereafter, the lugs 33 are moved into the slots 14 in the same manner that the lugs 25 are moved into their slots l4. Now the hinge pin 3| is in proper position and supported relatively to the hasp.

The hinge pin is carried by a hinge support plate 34 which through a bore 35 is bolted to the trunk body by means that need not here be shown. With the hinge support plate 34 secured .to a trunk, the hasp may now pivot relatively to the trunk about the hinge pin 3|, with the locking assembly moving into and out of locking relation to the usual strike found on trunks of and with the sheet metal cut and bent to form integral lateral flanges at both sides and at one end, a part of the end flange being bent inwardly to form a retaining lip, and said side flanges each having a shallow groove, a locking assembly comprising a rotatable key plug, a cylinder in which said key plug rotates, and a bolt mounted for movement relatively to the cylinder and retracted by rotation of said key plug, said hasp having an opening in its front face through which the key plug of said locking assembly is accessible when said locking assembly is applied to the back surface of said front face and between the side flanges and the end flanges, a part of said locking assembly lying under the retainin lip of the end flange, and lugs on said looking as- .sembly extending into said shallow grooves.

2. In a lock of the class described, a hasp formed of sheet metal to present a front face and with th sheet metal cut and bent to form integral lateral flanges at both sides and at one end, a part of the end flange being bent inwardly to form a retaining lip, and said side flanges each having a shallow groove, a locking assembly including a rotating key plug, said hasp having an opening in its front face through which the key plug of said locking assembly is accessible when said locking assembly is applied to the back surface of said front face and between the side flanges and the end flanges, a part of said locking assembly lying under the retaining lip of the end flange, and lugs on said locking assembly extending into said shallow grooves.

3. In a lock of the class described, a hasp having a front face and laterally extending integral flanges at both sides and at one end thereof, a locking assembly comprising a rotatable key plug, a cylinder in which said key plug rotates, and a bolt mounted for movement relatively to the cylinder and retracted by rotation of said key plug, said hasp having an opening in its front face through which the key plug of said locking assembly is accessible when said locking assembly is applied to the back surface of said front face and between the said three flanges, a part of one of said flanges overlying a part of said locking assembly through the movement of said part of said locking assembly under said flange, and a retaining lug on said locking assembly movable into a retaining groove formed in at least one of the other flanges.

4. In a lock of the class described, a base member having a front face and laterally extending integral flanges at both sides and at one end thereof, a locking assembly, a part of one of said lateral flanges bent inwardly to overlie a part of said locking assembly, and lugs on said locking assembly initially positioned and shaped to allow the locking assembly to move into position between the other flanges, said lugs being adapted for bending to move into retaining grooves formed in the said flanges.

5. In a lock of the class described, a hasp having a front face and laterally extending integral flanges at both sides and at one end thereof, a locking assembly comprising a rotatable key plug, a cylinder in which said key plug rotates, and a bolt mounted for movement relatively to the cylinder and retracted by rotation of said key plug, said hasp having an opening in its front face through which the key plug of said locking assembly is accessible when said locking assembly is applied to the back surface of said front face and between the said three flanges, a part of the end flange of said hasp bent inwardly in retaining relation to said locking assembly when said locking assembly is pushed into place with a part thereof under said end flange, and lugs coacting between said two side flanges and said locking assembly adapted to be bent into retaining grooves to retain the said locking assembly against movement from under the end flange.

' 6. In a lock of the class described, a hasp having a front face and laterally extending integral flanges at both sides and at one end thereof, a locking assembly comprising a rotatable key plug, a cylinder in which said key plug rotates, and a bolt mounted for movement relatively to the cylinder and retracted by rotation of said key plug, said hasp having an opening in its front face through which the key plug of said locking assembly is accessible when said locking assembly is applied to the back surface of said front face and between the said three flanges, a part of the end flange of said hasp bent inwardly in retaining relation to said locking assembly when said locking assembly is pushed into place with a part thereof under said end flange, and lugs on said locking assembly initially positioned and shaped to allow said locking assembly to move into position between said side flanges and with part thereof under said end flange, said lugs being adapted for bending into retaining grooves formed in the side flanges to secure said locking assembly in position.

7. In a lock of the class described, a hasp having a front face and laterally extending integral flanges at both sides and at one end thereof, a locking assembly comprising a rotatable key plug, a cylinder in which said key plug rotates, and a bolt mounted for movement relatively to the cylinder and retracted by rotation of said key plug, said hasp having an opening in its front face through which the key plug of said looking assembly is accessible when said locking assembly is applied to the back surface of said front face and between the said three flanges, a part of the end flange of said hasp bent inwardly in retaining relation to said locking assembly when said locking assembly is pushed into place with a part thereof under said end flange, and lugs on said locking assembly initially positioned and shaped to allow said locking assembly to move into position between said side flanges and with part thereof under said end flange, said lugs being adapted for bending into retaining grooves formed in the side flanges, said grooves being narrow and formed parallel to the front face of said hasp and tapering from the surfaces of the side flanges to a shallow depth, while inclined vertically to coact with the lugs to force the looking assembly against the back surface of the hasp.

8. In a lock of the class described, a hasp formed of sheet metal to present a front face and with the sheet metal cut and bent to form integral lateral flanges at both sides and at one end, a part of the end flange being bent inwardly to form a retaining lip, and the inside surfaces of said side flanges each having a shallow groove tapering from the surface thereof, a looking assembly comprising a rotatable key plug, a cylinder in which said key plug rotates, and a bolt mounted for movement relatively to the cylinder and retracted by rotation of said key plug, said hasp having an opening in its front face through which the key plug of said locking assembly is accessible when said locking assembly is applied to the back surface of said front face and between the side flanges and the end flange, a part of said locking assembly lying under the retaining lip of the end flange, and lugs on said locking assembly extending into said shallow grooves.

9. In a lock of the class described, a hasp formed of sheet metal to present a front face and with the sheet metal cut and bent to form integral lateral flanges at both sides and at one end, a part of the end flange being bent inwardly to form a retaining lip, and the inside surfaces of said side flanges each having a groove, a looking assembly comprising a rotatable key plug, a cylinder in which said key plug rotates, and a bolt mounted for movement relatively to the cylinder and retracted by rotation of said key plug, said hasp having an opening in its front face through which the key plug of said looking assembly is accessible when said. locking assembly is applied to the back surface of said front face and between the side flanges and the end flanges, a mounting plate to which said locking assembly is secured to be so applied to said hasp, said mounting plate underlying the retaining lip of the end flange, and lugs on said mounting plate extending into said grooves.

10. In a lock of the class described, a hasp formed of sheet metal to present a front face and with the sheet metal out and bent to form integral lateral flanges at both sides and at one end, a part of the end flange being curled inwardly to form a retaining lip for a hinge pin, the inside surfaces of said flanges each having a shallow groove tapering from the surfaces thereof, and lugs on said retaining lip extending into said shallow grooves to hold said hinge pin retaining lip in retaining position.

11. In a lock of the class described, a hasp formed of sheet metal to present a front face and with the sheet metal cut and bent to form integral lateral flanges at both sides and at one end, a part of the end flange being curled inwardly to form :a retaining lip for a hinge pin, the inside surface of said flanges each having a shallow groove, and lugs on said retaining lip extending into said shallow grooves to hold said hinge pin retaining lip in retaining position.

12. In a lock of the class described, a hasp formed of sheet metal to present a front face and with the sheet metal cut and bent to form integ-ral lateral flanges at both sides, one end of said hasp having an extension bent downwardly from the front face and against the inside surface of said front face to form a support for a hinge pin, the inside surfaces of said side flanges each having a groove, and lugs on said extension extending into said grooves to hold said extension in hinge pin support position.

13. In a lock of the class described, a hasp having a front face and laterally extending integral flanges at both sides and at one end thereof, a locking assembly comprising a rotatable key plug, a cylinder in which said key plug rotates, and a bolt mounted for movement relatively to the cylinder and retracted by rotation of said key plug, said hasp having an opening in its front face into which extends the end of the cylinder and through which the key plug of said locking assembly is accessible when said locking assembly is applied to the back surface of said front face and between the said three flanges, a part of the end flange of said hasp bent inwardly in retaining relation to said locking assembly when said locking assembly is pushed into :place with a part thereof under said end flange, and lugs coacting between said two side flanges and said locking assembly adapted to be bent .into retaining grooves to retain the said locking assembly against movement from under the end flange.

14. In a combination of the class described, a base member having a front face and laterally extending integral flanges at both sides thereof, an assembly adapted to be secured to said base member in a position between said flanges, the inside surfaces of said flanges having retaining grooves formed therein, and lugs on said assembly initially shaped and positioned to allow said assembly to be placed between said flanges, said lugs being adapted for bending thereafter into said grooves in said flanges to secure said assembly to said base member.

15. In a combination of the class described, a base member having a front face and laterally extending integral flanges at both sides and at one end thereof, an assembly adapted to be seamaze:

cured to said base member between said flanges, a part of said end flange bent inwardly to overlie a part of said assembly, and lugs on said assembly initially positioned and shaped to allow the assembl to move into position between the side flanges, said lugs being adapted for bending thereafter into retaining grooves formed in the inner surfaces of said side flanges whereby to secure said assembly to said base member.

16. In a combination of the class described, a hinging base formed of sheet metal and with the sheet metal cut and bent to form integral lateral flanges at both sides and at one end, apart of the end flange being curled inwardly to form a retaining lip for a hinge pin, the inside surfaces of said side flanges each having a groove therein, and lugs on said retaining lip initially shaped and positioned to allow said retaining lip to move into position between said side flanges, said lugs being movable thereafter into said grooves to hold said hinge pin retaining lip in retaining position.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,410,995 Casperson Mar. 28, 1922 1,623,190 Klein Apr. 5, 1927