Combination lock in a luggage case handle stud

• US 3,952,561 A
• Filed: 11/05/1974
• Issued: 04/27/1976
• Est. Priority Date: 11/05/1974
• Status: Expired due to Term

• Current Assignee: Presto Lock Company
• Original Assignee: Presto Lock Company
• Inventors: Bako, Lazlo
• Primary Examiner(s): Craig, Jr., Albert G.
• Application Number:
  US05/521,042
• Time in Patent Office: 539 Days
• Field of Search: 70/63, 70/64, 70/66, 70/67, 70/70, 70/288, 70/312, 70/316, 70/318
• US Class Current: 70/70
• CPC Class Codes: E05B 37/02 with tumbler discs or rings arranged on a single axis, each disc being adjustable independently of the others
• CPC Class Codes: Y10T 70/5062 Projecting fixed or movable lug type
• CPC Class Codes: Y10T 70/7305 Manually operable
• CPC Class Codes: Y10T 70/7328 Compound tumblers

Abstract

A multiple dial type combination lock in a luggage case handle stud employs an elongated, longitudinally movable puller formed to engage a cooperable hasp and having longitudinally spaced slots receiving dials. The dials, which are keyed for rotation with associated sleeve means by interfitting teeth, are cooperable with respective lugs on the puller for blocking movement of the puller from latching position when the dials are off combination. Each sleeve means has a missing tooth portion for receiving the respective lug on the puller when the dials are on combination, thereby permitting movement of the puller between latching and unlatching positions, the dials being shifted longitudinally with the puller during this motion. In the preferred embodiment, the opening combination may be set to a combination of one'"'"'s own choice.

Claims

1. A combination lock cooperable with a hasp, the lock comprising a longitudinally movable puller having means for engaging the hasp and having a plurality of longitudinally spaced slots each receiving a rotatable dial, the dials being longitudinally movable with the puller, and a sleeve for each dial rotatable therewith, the dials and the sleeves having cooperable means permitting movement of a dial longitudinally relative to its associated sleeve, the sleeves being cooperable with means provided by the puller for blocking movement of the puller from latching position when the dials are off combination and for permitting movement of the puller between latching and unlatching positions when the dials are on combination.

2. A combination lock as set forth in Claim 1, wherein the slots are provided in a central portion of the puller, and wherein opposite end portions of the puller are formed for manual engagement.

3. A combination lock as set forth in Claim 1, wherein the puller has dial carriage means for moving the dials longitudinally with the puller, the carriage means comprising a pair of transversely spaced longitudinal outer walls having the dials therebetween and longitudinally spaced inner ribs extending transversely from the outer walls adjacent to both sides of each dial.

4. A combination lock as set forth in Claim 3, wherein the means for engaging the hasp comprises a lug projecting from the carriage means.

5. A combination lock as set forth in Claim 1, wherein the puller has a dead bolt action, and wherein the lock further comprises means for resiliently maintaining the puller in the latching and unlatching positions, respectively.

6. A combination lock as set forth in Claim 1, wherein the cooperable means of the dials and sleeves are interfitting teeth;

wherein each sleeve has a missing tooth portion; and

wherein the means provided by the puller comprises spaced lugs cooperable with respective sleeves, a tooth on a sleeve being engageable with a lug for blocking movement of the puller from unlactching position when the dials are off combination, the lugs being receivable by the missing tooth portions of their associated sleeves when the dials are on combination for permitting movement of the puller to the unlatching position.

7. A combination lock as set forth in Claim 6, wherein the dials are generally annular in shape and have the dial teeth formed on the inner periphery thereof, the axial dimension of the dial teeth being less than the thickness of each dial and the axial dimension of the teeth on each sleeve being greater than the thickness of each dial.

8. A combination lock as set forth in Claim 6, wherein the sleeves are biased into abutting end-to-end relation on a longitudinally extending shaft by spring means, and wherein the lock further comprises a shift lever mounted at one end of the shaft for moving the shaft longitudinally against the force of the spring means to disengage the teeth on the sleeves from the teeth on their associated dials.

9. A handle stud for a luggage case or the like, including a combination lock comprising a longitudinally extending shaft, a plurality of dials keyed for rotation about the shaft with associated sleeves, each dial and is respective sleeve having interfitting teeth which permit longitudinal movement of each dial relative to its associated sleeve, and a longitudinally movable puller having means for engaging a cooperable hasp, the puller having a central portion with longitudinally spaced slots receiving respective dials which are longitudinally movable with the puller and having portions on opposite sides of the central portion formed for manual engagement, the puller further having means cooperable with the sleeves for blocking movement of the puller from latching position when the dials are off combination and for permitting movement of the puller between latching position and unlatching position when the dials are on combination, the handle stud having longitudinally spaced, facing recesses for receiving the opposite ends of the puller.

10. A handle stud as set forth in Claim 9, wherein the manually engageable end portions of the puller slop upwardly away from the central portion of the puller.

11. A handle stud as set forth in Claim 9, wherein the handle stud includes means for biasing the opposite ends of the puller into their respective recesses to resiliently maintain the puller in the latching and unlatching positions, respectively.