US2301558A

US2301558A - Lock

Info

Publication number: US2301558A
Authority: US
Inventors: Marple Rollo
Original assignee: HANCOCK Manufacturing CO
Current assignee: HANCOCK Manufacturing CO
Priority date: 1938-10-20
Filing date: 1938-10-20
Publication date: 1942-11-10
Anticipated expiration: 1959-11-10

Description

R. MARPLE Nov. l0, 1942.

Filed oct. 2o, 195s' .f g 7a 434 /ZZ t INVENTOR Zar/Ze.

` TORNE xs.

Patented Nov. 10, 1942 2,301,558 Loon Rollo Marple, Jackson, Mich., assigner to Hancock Manufacturing Company, Jackson, Mich., a

corporation of Michigan Application october zo, 193s, serial No. 235,983

(C1. 2st- 164) 8 Claims.

The present invention relates to locking'devices for closures, and in the specific embodiment herein disclosed, is directed particularly to the provision of improved locking devices for automobile doors.

The principal objects of the present invention are to provide improved locking devices particularly adapted for but not limited to use in connection With vehicle doors; to provide such locking devices which are simple in construction, economical of manufacture, and which are reliable and efcient in operation; to provide such devices embodying improved constructions of locking devices for preventing releasing movements of the bolt; to provide such devices embodying a bolt selectively releasable from engaging relation to an associated keeper, a member movably associated with the lock casing and responsive to either an inside or an outside handle for releasing the bolt, and locking means selectively engageable with the just-mentioned member for preventing operation of the bolt by either the inside or the outside handle; to provide such devices wherein a releasing movement of the boit, occasioned, for example, by a closing movement of the door, serves to release the locking device from locking position; and to provide such devices embodying improved supporting and cushioning relationship between the movable parts of the lock.

With the above as Well as other and more detailed objects in view, which appear in the following description and in the appended claims, preferred but illustrative embodiments of the invention are shown in the accompanying drawing, throughout the several views of which corresponding reference characters are used to designate corresponding parts, and in which:

Figure 1 is a view in elevation of one embodiment of the invention;

Fig. 2 is a view in horizontal section, taken along the line 2'-2 of Fig. 1;

Fig. 3 is a view in elevation of a modied embodiment of the invention;

Fig. 4 is a view in horizontal section, taken along the line 4-4 of Fig. 3; and

Fig. 5 is a view in vertical section, taken along the line 5 5 of Fig. 3;

Referring first to the embodiment of Figs. 1 and 2, the therein described door lock comprises a case plate ill, a bolt I2, a retracting member I4, an outside operated rollback member I6, an inside operated link I8 which may, as will be appreciated, be connected to the usual inside handle 55 ltherefor in the case plate flange 24.

(notshown), and a selectively operable locking device designated as a whole as 20.

The bolt I2 is illustrated herein as being of the slidable type, having a thickened nose 22, which projects through an opening provided therefor in the flange 24 of the case plate. It will be understood that in the more generic aspects of the invention bolt actions of other types may be used, such, for example, as those disclosed in applicants copending application Serial No. 235,982, led October 20, 1938, and in applicants copending application Serial No. 236,135, filed October 21, 1938.

Continuing with the description of the present embodiment, a usual coil spring 26, which is secured to the base 28 of the case plate, bears against the rear face 30 of the bolt head 22, and so continuously urges the latter to the left, as viewed in Fig. 1. to a fully projected position, in which the nose 22 of the bolt is adapted to cooperate witha suitable lock keeper (not shown). The body of the bolt I2, which is preferably formed as a. metal stamping suitably secured to the head 22, extends `rearwardly from the head 22, and lies generally parallel to but in spaced relation to the base 2,8 of the case plate I0. Adjacent its rear end, the bolt I2 is provided with a longitudinally extending slot 32, which receives a guide pin 34. One end of the guide pin 34 is riveted to the base of the case plate, and the other end thereof is correspondingly secured to a supplemental casing member 36. The guide pin 34 is thus xed in position relative to the case plate, and acts to give guiding support to the rear end of the bolt l2 during the sliding movements thereof. Additional guiding support for the bolt is provided by the opening provided The bolt is also provided with a downwardly positioned laterally projecting foot 38, which cooperates, as hereinafter described, with a rubber buffer 40 carried by the previously mentioned actuating slide I4 to effect retracting movements of the bolt. i

The outside rollback, designated as a whole as I6, is constructed in accordance with the arrangement disclosed and claimed in Moore Patent 1,895,893, assigned to the same assignee as the present application, and comprises two rollback elements 42 and 44, each whereof is provided with a squared opening to receive the usual squared spindle 46,` to which the outside handle may be connected. The squared opening in the rollback elements 42 and 44 are slightly -angularly offset with respect to each other. The

rollback element 44 is provided with a nose 44a, which is positioned to abut the ange 24. The rollback element 42 is provided with a nose 48, which is disposed to be normally engaged by a foot 58 formed on the slide I4, and urged thereby in a counterclockwise direction of rotation as viewed in Fig. 1. With this relation, it will be appreciated that the rollback elements 42 and 44 have a scissor action upon the spindle 45, and so wedgingly hold the latter against rattling within the squared openings. The rollback element 42 is also provided with a downwardly extending foot 52, which is disposed to cooperate with a key controlled locking slide, such as 54,

to enable the door to be locked from the outside.

The key slide 54 may be conventionally arranged to be selectively moved upwardly from the retracted position shown in dotted lines to a position in blocking relation to the foot 52. The actuating parts for the key slide 54 may be conventional and are not shown herein. The rollback elements 42 and'44 are provided lwith axially extending projections 42a and r'4412, by which. they Yare rotatably mounted in the base 28 of the case plate and in a corresponding opening provided in a supplemental casing member '56, which is secured to the base of the caseplate adjacent the lower edge thereof.

The slide I4 comprises a longitudinally extending body, which is positioned between the rearwardly extending bolt body and the base 28 of the'case plate, and is guided thereon by a shoulder 58 secured to the base of the case plate and the previously mentioned guide pin 34. The guide pin 34 rides kin a slot 60 formed in the slide I4. The slide I4 is also provided with a laterally turned foot 62, which acts as a back-up support for the previously mentioned rubber block 48. The block 48 is secured to the slide I4 vby a rivet 64 or equivalent means.

Theslide I4 serves to Inormally urge the outside rollback element 42 ina counter-clockwise direction, as previously mentioned, and for this purpose the slide I4 is provided with a coil spring 66, ythe free end whereof bears against a projection 68 which extends upwardly from the body of the slide.

In addition, to adapt it for cooperation with the previously mentioned locking device 20, the slide I4 is provided with -an additional upwardly projecting abutment 18.

rIn accordance with the present embodiment, the locking device 20 comprises a roller 12 the main body portion whereof is positioned for vertical sliding movement between the supplemental casing member 36 and the base 28 of the case plate. The reduced ends, such as 14, of the Aroller V'i2 ride in elongated slots such as 'I6 4formed in the casing member 36 and in the'base 28. The roller i2 is also provided with a bore, within which the laterally turned endof a control rod 'I8 is secured. With this relation, it will be understood that the control frod'18may be suitably controlled, as by means of a button (not shown) available from within the'associated vehicle, so as to move the locking roller 12 from the lower or locking position shown'inlFig. l, to a raised position,.in which it is out of locking relation to the abutment 'I0 onfthe slide I4. In order to yieldably retain the lockingbuttoin 'I2 in either the locked or the'unlocked position, a spring 80 is provided, thefree end -whereof projects into the path of movement of the button I2 at-an intermediate point thereof. -The' spring thus acts to either yieldablyfretain thev button 12 in the lower locked position or in a raised unlocked position.

Considering the operation of the device as a whole, it will be appreciated that the parts are shown in the normal locked position thereof, with the bolt projected, and with the locking roller I2 in the lower or locked condition. With the parts thus positioned, the roller 'I2 lies in blocking relation to the projection 10, so that the slide I4 is prevented from being moved in a retracting or rightward direction. Thus, both the outside rollback I6 and the inside link I8 are ineffective -to cause a retracting movement of the bolt I2.

Assuming it is desired to release the locking device, and render the outside and inside handles Veffective for operation, the control rod ES may be drawn upwardly, moving the roller 'I2 from the locking position shown in Fig. 1 to the upper or unlocked position in which it is out of blocking relation to the path of movement of the abutment 'IIL With the locking device thus released, the inside link I8, for example, may be actuated to the right, as viewed in Fig. l, in which event the roller 82, secured at the end thereof abuts the end of the slot 84 formed in the end of the slide I4, and causesa corresponding movement to the right ofthe slide I4. The movement to the right of the slide I4 vis communicated to the bolt 22 by means of the rubber buier 48, which bears against the previously mentioned foot 38 formed on the lower part of the-bolt body. A corresponding action may be eiected `by rotating the outsiderollback I6 in a clockwise direction by a corresponding rotation of the spindle 46. The clockwise rotation of the outside rollback I6 causes the nose 48 thereof to bear against the foot 58 formed on the slide and force the latter to the right. It will be seen, accordingly, that `upon release of the .locking device 20, either the outside rollback or the inside link may be actuated `to move the slide I4 to the right and -cause a corresponding rightward or retracting movement of the bolt 22.

Assuming the inside handle or the outside rollback is released, as the case may be, the coil springIG, Aassociated with the slide I4, becomes effective ',to force the latter to the left to its illustrated normal position, thus either returning the link I8 to the normal position or return- .ing the yrollbackI to the normal position. Assuming thatthenosefZZoflthe boltis notblocked lfrom movementby the lock-keeper (not shown) .,buiTerAU, assists the -restoring'movementof the slide I4.

It will be notedthatthe bolt I2 may be retracted independently oflth'e positi'onof the slide ,I-4, by `the application of pressure to the nose thereof, such for example as results from a normal closing movement .ofa-door. Under such conditions, the boltlIZmoves to theright against the force of the compression spring '12R-moving `the foot 38-to the right awaylfrom the rubber buffer 40. Under these conditions, the slide I4 remains in lits normal position, Vin which it is Veffectivefto hold the outside rollback I6 in wedging relation to the spindle 46.

A feature ofthe present 4invention resides in "arranging thefbolt sothat a retracting-movement Ythereof -under the just-mentioned conditions,

serves to move the locking device from the locking position shown in Fig. 1 to the unlocked position thereof. This feature is of importance primarily in that it prevents the operator of the associated vehicle from inadvertently setting the locking device 20 into locking position while the door is open and thereafter closing the door, leaving both the inside and outside handles locked against actuation. Assuming that the locking device 20 is set into operative position while the bolt is projected, and that the bolt is thereafter retracted as by closing movement of the door, it will be noted that the angled face 86 of the bolt in moving to the right, engages the lower side of the roller 12, so that continued movement of the bolt to the right cams the roller 12 upwardly to the unlocked position thereof, in which unlocked position it is yieldably retained by the detent spring 80.

In the rmodified embodiment of the invention shown in Figs. 3, 4 and 5, the bolt |00 is provided with a thickened nose |02, and a rearwardly and downwardly oiset body portion |04. The nose of the bolt is guided in the opening provided therefor in the flange |06 of the case plate |08, and

the body |04 thereof is guided by a pin ||0, which rides in an elongated slot ||2 provided in the bolt body. A coil spring ||4 is provided, the free end whereof bears against the shoulder constituted by the rear edge ||6 of the bolt head, I

and so continuously urges the bolt |00 to the leftward or to the fully projected position. The rear end I1 of the bolt body is extended upwardly and is provided with a laterally turned foot ||8, which normally abuts the outer end of a rubber buffer |20, which is held in place between the base |22 of the case plate and a supplemental casing member |24, which is secured to the base of the case plate. The previously mentioned pin ||0 is, of course, secured between the supplemental casing member |24 and the base |22 of the case plate.

The retracting slide |30, which corresponds generally to the previously described slide |4 and responds to the outside rollback mechanism |32 and the inside link |34 in a similar manner, is provided with a longitudinally extending body, which lies adjacent the case plate base |22. The slide |30, upon being moved to the right, causes corresponding rightward movement of the bolt |00 through the engagement of a shoulder |36 formed thereon with an inwardly turned foot |38 formed on the bolt |00. The slide is guided relative to the casing |28 by means of the guide pin ||0 which rides in a corresponding slot formed therein, and also by a tongue |40, which extends between the body of a supplemental casing member |42 and the base |22 of the case plate. As in the case of the above-described embodiment also, the casing member |42 which is conventionally secured to the case plate, also acts as a bearing support for the outside operated rollback element |44. 'I'he slide |30 is provided with a coil spring |46 which acts against the projection |48 thereon which extends downwardly therefrom, and so continuously urges the slide |30 to the left to the position shown in Fig. 3. To adapt it for cooperation with the locking device, designated as a whole as |50, the slide |30 is provided with an upwardly extending projection |52.

In the present instance, the locking device |50 comprises a slide |54, which is guided with respect to the base |22 of the casing by means of a clip |55, which embraces the body of the slide,

In order to yieldably hold the slide |54 in either the lower locked position or a raised unlocked position, between which positions it may be moved by the control rod |64, the previously mentioned clip |56 is provided with a downwardly extending spring tongue |66, the lower end whereof is provided with an inwardly projecting rounded boss |68. The boss |68 is disposed to be releasably received in either the guide slot |10 or a lower opening |12, both of which are formed in the slide |54. When the slide |54 is in the lower locked position, the boss |68 is received in the slot |10. When, however, the control rod |64 is actuated in an upward direction, the boss |68 is forced out of the slot |10 and, when the slide |54 reaches its upper position, snaps into the lower opening |12 formed in the slide. As in the previous embodiment, the body of the bolt is provided with an angled surface |14, which bears against the head of the pin |58 and acts to cam the pin |58 and the slide |54 from the lower locking position to an upper unlocked position thereof, in response to a retracting movement of the bolt |00.

In all other respects except those described, both as to structure and operation, the embodiment of Figs. 3, 4 and 5 may correspond to that oi the embodiment of Figs, 1 and 2. It is thought, therefore, that no further descrip- .tion of the embodiment of Figs. 3, 4 and 5 is needed.

Although specic embodiments of the present invention have been described in detail, it will be appreciated that such embodiments are illustrative only and that various modifications in the form, number and arrangement of the parts may be made within the spirit and scope of the present invention.

What is claimed is:

1. In a latch for association with a closure member and a cooperating member, the combination of a bolt carried by one of the members and releasably engageable with a keeper carried by the other member and movable by the keeper as an incident to a closing movement of the closure, rst and second operators respectively operable from within and without the closure for releasing the bolt, means including a single manually operable locking member common to said operators and actuable to render both said operators ineiective to release said bolt, and means actuated by said movement of the bolt by the keeper for restoring said locking member to unlocked condition.

2. In a latch for association with a closure member and a cooperating member, the combination of a bolt slidably carried by one of the members and retractably engageable with a keeper carried by the other member, said bolt being movable by the keeper as an incident to a closing movement of the closure, a retracting member carried by said one of the members and actuable to release the bolt, rst and second operators respectively operable from Within and without the closure for actuating the reti-acting member, means including a single manually operab-le locking member common to said operators and actuable to render both said operators ineffective to retract said retracting member, and means actuated by said movement of the bolt by the keeper for restoring said locking member to unlocked condition 3. In a latch for association with a closure member and a cooperating member and having a casing carried by one of the members, the combination of a bolt slidably supported on said casing for movement between a projected and a retracted position, a retracting member actuable to effect a retracting movement of the bolt, inside and outside handle operated means operable to actuate said retracting member, and means comprising a member projecting from the casing and common to said bolt and retracting member for guidably supporting the same on the casing.

4. In a latch for association with a closure member and a cooperating member and having a casing carried by one of the members, the combination of a bolt slidably supported on said casing for movement between a projected and a retracted position, a retracting member actuable to effect a retracting movement of the bolt, inside and outside handle operated means operable to actuate said retracting member, a pin common to said bolt and retracting member for guidably supporting the same on the casing and having one end secured in the casing, a deck secured secured to the casing in spaced relation thereto for supporting the other end of the pin, and means comprising a 'locking member guidably supported between the deck and the casing and movable into a position to block movement of the retracting member.

' 5. In a latch for association with a closure member and a cooperating member and having a casing carried by one of the members, the combination of a bolt slidably supported on said casing for movement between a projected and a retracted position, a retracting member actuable to effect a retracting movement of the bolt, inside and outside handle operated means operable to actuate said retracting member, a pin common to f said bolt and retracting member for guidably supporting the same on the casing and having one end secured in the casing, a deck secured to the casing in spaced relation thereto for supporting the other end of the pin, means comprising a ,1,

locking member guidably supported between the deck and the casing and movable into a position to block movement of the retracting member, and means rendering a retracting movement of the bolt effective to .restore said locking member to unlocked position.

6. In an automobile door latch, a bolt member, inside and outside operators including an inside reciprocating link and an outside roll back arm, means for operatively connecting said inside link and said outside roll back arm to said bolt member to enable said link and arm to render the bolt member ineffective to restrain the door, a single control device normally in a position where it is disconnected from said means but adapted to be moved through a path arranged at right angles to the rollback axis into a position Where it will operate to prevent movement of said means and thereby prevent the inside link and the outside roll back arm from so rendering the bolt member ineffective, a single spring for holding the control device in both of said positions, and means operated by slamming of the door to move the single control device into its normal position Where it is disconnected from said means.

7. In a door latch, a bolt, inside and outside operators, a rst member responsive to said inside operator and a second member responsive to said outside operator, means for operatively connecting said first and second members to said bolt to enable said operators, respectively, to render the bolt ineffective to restrain the door, a single control device normally in a position in which it is ineffective but adapted to be moved into a position where it will operate to prevent the said inside and outside operators from so rendering the bolt ineffective, means for releasably holding the control device in each of saidpositions, and means operated by a closing of the door to move the single control device into its normal position.

8. In a door latch, a movably mounted bolt, inside and outside operators, a rst member responsive to said inside operator and a second member responsive to said outside operator, means for operatively connecting saidiirst and second members to said bolt to -enable said operators, respectively, to render the bolt ineffective to restrain the door, a single control device normally in a position in which it is ineffective but adapted to be moved into a position Where it will operate to prevent the said inside and outside operators from so rendering the bolt ineffective, means for releasably holding the control device in each of said positions, and means operated by movement of said boltfor restoring the locking device to its normal position.

ROLLO MARPLE.