US2744405A

US2744405A - Door lock and mounting for instrument panel compartment

Info

Publication number: US2744405A
Application number: US318187A
Authority: US
Inventors: Clarence P Mcclelland
Original assignee: Motors Liquidation Co
Current assignee: Motors Liquidation Co
Priority date: 1952-11-01
Filing date: 1952-11-01
Publication date: 1956-05-08
Anticipated expiration: 1973-05-08

Description

May 8, 1956 c. P. MOCLELLAND DOOR LOCK AND MOUNTING FOR INSTRUMENT PANEL COMPARTMENT Filed Nov. 1, 1952 U/arem'e DOOR LOCK AND MOUNTING FOR INSTRUMENT PANEL COMPARTMENT Application November 1, 1952, Serial No. 318,187 Claims. (Cl. 701-81) The present invention relates to door locks and more particularly to mounting means for securing locks to panels or doors such as are employed on glove compartments of an automotive vehicle.

The glove compartments of automotive vehicles are frequently subjected to pilfering by unauthorized persons.- The mounting means presently employed for retaining the lock on the glove compartment door generally have a chrome-plated bezel which is disposed on theexterior of the door. The bezel is frequently fabricated from a relatively thin piece of stock and is crimpedor otherwise externally secured to the lock housing so as to retain the key barrel in the housing. Therefore, it is easy to destroy the bezel and remove the lock from the door whilethe door is closed. Thus, it is possible for a person to unauthorizedly gain access to the glove compartment without ever actuating the key barrel.

It is an object of the present invention vto provide a mounting'means for a door lock which will be extremely difiicult, if not impossible, to remove when the door is in the locked position.

It is also an object to provide a mounting means for a door lock which can not be removed when the key barrel is disposed in the lock housing.

In the drawing:

Fig. 1 is a cross-sectional view of a door lock embodying the present invention.

Fig. '2 is an end view of the lock structure shown in Fig. 1. p

Fig. 3 is an exploded perspective view of the lock shown in Fig. 1.

Referring to the drawings in more detail, a door 1 formed by inner and outer panels 2 and 4 is hinged along its lower edge for swinging into and out of engagement with the stationary framework 6 that forms a glove compartment 8. A lock 10 is disposed in the registering apertures 12 and 14 through the inner and outer panels 2 and 4 and has a spring loaded bolt 16 which engages a downwardly projecting flange 18 on the stationary framework 6.

The operation of the lock 10 is controlled by a key barrel 20'which is operatively positioned in an elongated substantially cylindrical housing member 22. The portion of the housing member 22 which projects into the glove compartment 8 is closed by an end piece 24. The bolt 16 engaging the flange 18 on theframework 6 is slidably disposed in the housing 22 adjacent to the end piece 24. A bell crank 28 is pivotally mounted in a channel 30 extending along the bottom of the housing member 22 and operatively engages the bolt 16 and a spring, which is not shown, normally causes the'bell crank 28 to urge the bolt 16 into the extended position. When a pushing force large enough to overcome the spring tension is applied to the end 32 of the bell crank 28, the crank 28 will pivot and draw the bolt 16 downwardly into the housing member 22. This in turn will cause the bolt 16 to disengage the flange 18 and allow the door 1 to swing into the open position.

A second channel 34 which is diametrically'opposite the lower channel 30, extends axially along the upper portion of the housing member 22 and receives the tumblers 36 projecting from the key, barrel 20. When the key barrel 20 is in the locked position, as seen in Fig. l, the tumblers 36 will project into the channel 34 and the end of the key barrel 38 will engage the detent 40 projecting inwardly from the top of the housing member 22. This in turn will effectively prevent axial and rotary movement of the barrel 20.

The enlarged end 42 of the housing member 22 forms ashoulder 44 that is adapted to engage the inside of the outer panel 4. A projection. 46 may be provided on the shoulder 44 to prevent rotation of the housing member 22 and to insure that the opening in the end of the housing 22 registers with the aperture 14 through the outer panel 4. Cooperating fastening means such as

threads

47 and 48 may be provided on the interior and'exterior of the housing member 22 and sleeve member 50 to secure the two members together. I

The sleeve member 50 may be provided with a flange 52 which projects radially outwardly therefrom. The exterior of the flange may form a decorative bezel 54 that is disposed about the key barrel 20 and the surface of which is preferably too smooth to be gripped by a tool. The inside of the flange 52 forms a shoulder 56 that engages the exterior of the outer panel 4 and cooperates with the shoulder 44 on the housing member 22 to form a clamp therebetween. To facilitate assembling the lock 10 the interior of the sleeve 50 is provided with means, such as the numerous faces 58, which may be engaged by a tool for screwing the sleeve 50 into or out of the housing member 22. Thus when the sleeve 50 is screwed into position, the housing member 22 will be retained in position as a result of the clamping action performed by the oppositely disposed shoulders 44 and 56 on said members 22 and 50. It should be noted that since the exterior of the bezel 54 is smooth the sleeve 50 can not be removed without gripping the interior thereof. a

The key barrel 20 which is movably disposed within the housing 22 and sleeve member 50 has a spring biased pin 60 which projects outwardly therefrom. When the pin 60 is in the extended position it will strike a shoulder 62 and prevent removal of the key barrel 20. In the present instance this shoulder 62 is formed by the end of sleeve member 50. The end of sleeve member 50 is preferably positioned to form an annular recess 64 adjacent shoulder 65 which extends around the interior of the housing member 22. Since the recess 64 is annular and of sufiicient width, the pin 60 will not interfere with the rotating and reciprocating movement of said key barrel 20 during normal operation thereof. Passages may be provided through the inner panel 2 and the housing member 22 to permit a tool being employed for depressing the pin 60. By positioning the passages 70 behind the outer panel 4 it will be necessary for the door 1 to be open to remove the key barrel 20.

As previously stated when the key barrel 20 is in the locked position of Fig. 1, the barrel 20 will be restrained from rotating or reciprocating. However, when a key of the correct shape is inserted into the key barrel 22 the tumblers 36 will be Withdrawn from the channel 34 and the barrel 20 may be rotated. When the barrel 2.0 is rotated into the unlocked position, a recessed portion 72 on the side of the key barrel 20 will be in line with the detent 40. Thus upon the application of a pushing force to the outer end of the key barrel 20, the key barrel 20 Will slide inwardly and cause the bell crank 28 to draw the bolt 16 into the housing member. 22 and out of engagement with the flange 18.

To assemble the lock 10 on the door 1, the enlarged end 42 of the housing member 22 is placed to register with the aperture 14 through the outer panel 4. The sleeve member 50 is then inserted into the open end of the housing member 22 and with the assistance of a tool placed in the center of sleeve member 50 the two members 22 and 50 are screwed together until the outer panel 4 is clamped between the opposed shoulders 44 and 56. This will result in the housing member 22 being rigidly secured in position. The tumblers 36 and retractable pin 60 are then forced into the key barrel 20 and the key barrel placed inside of the housing member 22. Once the key barrel 20 is in position, the pin 60 will be extended so as to engage the shoulder 62 and prevent removal of the barrel 25!.

To remove the lock assembly 10 from the door I, it is first necessary to place the door 1 in the open position. A tool is then inserted through the passages 70 in the inner panel 2 and the side of the housing member 22 so as to depress the pin 60 and the barrel 20 is removed from the sleeve. It should be noted that unless the correct key is in the key barrel 20, the tumblers 36 will project outwardly therefrom and prevent the removal of the barrel 20 from the sleeve member 50. Once the barrel 20 is removed from the sleeve member 50 a tool may be inserted into the sleeve member and rotated until the sleeve is disconnected from the housing 22.

While but one embodiment has been illustrated and described it will be apparent to anyone skilled in the art that the invention may be embodied in numerous other specific forms without departing from the spirit thereof. It is therefore desired that the present embodiment be considered in all respects illustrative and not restrictive, reference being bad to the appended claims rather than to the foregoing description to determine the scope of the invention.

What is claimed is:

I. A door lock adapted to be secured to a panel having an aperture therethrough, comprising a housing member adapted to be disposed adjacent said aperture and having fastening means adjacent one end thereof, a sleeve member having fastening means thereon engaging said first fastening means and thereby securing said sleeve member to said housing member, oppositely disposed shoulder means on said members adapted to engage said panel and to retain said housing member adjacent said aperture, :1 key barrel disposed Within said members and having a pin retractably projecting therefrom, and annular shoulder means on each of said members positioned to form a ber adapted to be disposed at said aperture, a sleeve member secured to said housing member, said members having opposed shoulders thereon adapted to engage said panel and to retain said housing member at said aperture, a lock cylinder positioned in said housing member and having a retractable pin projecting therefrom, shoulder means on each of said members positioned to form a recess therebetweenadapte'd to receive said pin when in the extended position and thereby retain said lock cylinder in said housing member, and an aperture through said housing member adapted to allow a tool to pass therethrough to depress said pin and to release said lock cylinder from said housing.

3. A latching mechanism adapted to secure a panel having an aperture therethrough to a stationary frame, said mechanism comprising a housing member adapted to be disposed at said aperture and having fastening means thereon adjacent one end thereof, a sleeve member having fastening means thereon engaging said first fastening means and thereby securing said sleeve member to said housing member, oppositely disposed shoulder means on said members adapted to engage said panel and to retain said housing member at said aperture, a reciprocating bolt projecting from said housing and being adapted to engage said stationary frame, a key actuated lock cylinder having a pin retractably projecting therefrom, said cylinder being operatively associated with said bolt, shoulder means on each of said members spaced to form a recess adapted to receive said pin to retain said lock cylinder in said housing, and one of said members having an opening therethrough to permit a tool to engage and depress said retractable pin and thereby facilitate the removal of said lock cylinder from said housing member when said bolt is disengaged from said frame.

4. A door lock adapted to be secured to a panel having an aperture therethrough and comprising a housing member adapted to be disposed adjacent said aperture and having fastening means thereon, a sleeve member having fastening means thereon cooperatively engaging said first fastening means, opposed shoulders disposed upon said members adapted to releasably clamp said panel therebetween when said fastening means are in engagement, one of said members having a portion thereof adapted to be engaged by a tool for releasing said fastening means, and key actuated means disposed upon said members so as to prevent said tool from engaging said portion.

5. A door lock adapted to be secured to a panel having an aperture therethrough, comprising a housing member adapted to be disposed adjacent said aperture and having a threaded portion thereon, a sleeve member having a threaded portion thereon which is adapted to cooperatively engage said first threaded portion, opposed shoulder means disposed upon said members and adapted to releasably clamp said panel therebetween when said threaded portions are in engagement, tool receiving means on one of said members adapted for disengaging said threaded portions and thereby releasing said housing member from said aperture, and a key barrel disposed upon one of said members whereby said tool will be prevented from engaging said tool receiving means.

6. Latching means adapted to secure a panel having an aperture therethrough to a stationary frame, said means comprising a housing member adapted to the disposed at said aperture and having a threaded portion adjacent one end thereof, a sleeve member having a threaded portion thereon adapted to engage said first threaded portion, opposed clamp means projecting from said members and adapted to clamp said panel therebetween when said threaded portions are in an engagement, one of said members having a cavity therein adapted to receive a tool for unscrewing said threaded portions and thereby releasing said members from said aperture, a key actuated lock cylinder disposed within said cavity and having a pin retractably projecting therefrom, and annular shoulder means on each of said members positioned to form a recess therebetween adapted to receive said pin and thereby retain said lock cylinder in said cavity.

7. A latching mechanism adapted to secure a panel having an aperture therethrough to a stationary frame, said mechanism comprising a housing member adapted to be disposed at said aperture and having a threaded portion adjacent one end thereof, a sleeve member having a threaded portion thereon adapted to engage said first threaded portion, opposed clamp means projecting from said members and adapted to clamp said panel therebetween when said threaded portions are in engagement, one of said members having a cavity therein adapted to receive a tool for unscrewing said threaded portions and thereby releasing said members from said aperture, annular shoulder means on one of said members, a key actuated lock cylinder disposed within said cavity and having a pin retractably projecting therefrom and engaging said annular shoulder means to thereby retain said lock cylinder in said cavity, one of said members having an opening therethrough to permit a tool to engage said retractable pin when said panel is in the unlocked position to thereby release said lock cylinder from said cavity.

8. Door latching means adapted to secure a panel having an aperture therethrough to a stationary frame, said means comprising a housing member adapted to be disposed adjacent said aperture and having fastening means thereon, a sleeve member having fastening means thereon adapted to cooperatively engage said first fastening means, opposed clamp means projecting from said members and adapted to grip said panel when said fastening means are in engagement, one of said members having a cavity therein adapted to receive a tool for disengaging said fastening means, and a lock cylinder disposed within said cavity so as to prevent said tool being inserted into said cavity and thereby prevent unauthorized removal of said fastening means from said panel.

9. Door latching means adapted to secure a panel having an aperture therethrough to a stationary frame, said means comprising a housing member adapted to be disposed at said aperture and having a threaded portion thereon, a sleeve member having a threaded portion there on adapted to engage said first threaded portion, opposed clamp means projecting from said member and adapted to clamp said panel therebetween when said threaded portions are in engagement, one of said members having a cavity therein adapted to receive a tool for unscrewing said threaded portions and thereby releasing said members from said aperture, and a key actuated lock cylinder disposed within said cavity so as to prevent said tool extending into said cavity and thereby prevent unauthorized removal of said members from said panel.

10. A latching mechanism adapted to secure a panel having an aperture therethrough to a stationary frame, said mechanism comprising a housing member adapted to be disposed at said aperture and having a threaded portion thereon, a sleeve member having a threaded portion thereon cooperatively engaging said first threaded portion and thereby securing said sleeve member to said housing memher, one of said members having a cavity therein adapted to receive a tool for unscrewing said threaded portions and thereby releasing said members from said opening, opposed shoulders projecting from said members and being adapted to clamp said panel therebetween when said threaded portions are in engagement, a bolt projecting from said housing member and being adapted to engage said stationary frame, a key actuated lock cylinder disposed within said cavity and having a pin retractably projecting therefrom, said lock cylinder being operatively associated with said bolt, annular shoulder means on each of said members positioned to form an annular recess adapted to receive said pin when said pin is in the extended position and to thereby retain said lock cylinder in said cavity, and a passage through one of said members adapted to permit a tool to pass therethrough and depress said retractable pin and thereby release said lock from said cavity. 1

France Mar. 20, 1939