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Publication numberUS2247621 A
Publication typeGrant
Publication dateJul 1, 1941
Filing dateJul 30, 1940
Priority dateJul 30, 1940
Publication numberUS 2247621 A, US 2247621A, US-A-2247621, US2247621 A, US2247621A
InventorsSpeer Robert A
Original AssigneeSpeer Robert A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Lock mechanism
US 2247621 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

July 1, 19414 R SPEER 2,247,621

LOCK MECHANISM Filed July 30, 1940 A itomey Patented July 1, 1941 j ,umeof TAT 5 Claims.

The present invention relates to new and useful improvements in lock mechanisms.

The primary object of the invention is to provide a lock mechanism which will be pick-proof.

Other objects of the invention are to provide a lock mechanism which will be comparatively simple in construction, durable and reliable in use, and which may be manufactured at low cost.

Still other objects and advantages of the invention will become apparent from a study of the following detailed description taken in connection with the accompanying drawing wherein like characters of reference designate corresponding parts throughout the several views, wherein:

Figure 1 is a side elevational view of my invention.

Figure 2 is a front elevational view of the invention.

Figure 3 is a rear elevational view of the invention.

Figure 4 is a longitudinal vertical sectional view taken substantially on the line 4-4 of Fig. 2.

Figure 5 is a transverse sectional view taken substantially on the line 55 of Fig. 4.

Referring now to the drawing, in detail, it will be seen that the reference numeral ID designates a barrel, constructed of suitable material, and provided with a bore II which terminates in a counterbore I2 at its back end and a counterbore I 3 at its face or front end. Vertical bores H are formed in the barrel l and communicate with the bore ll while a bore l extends vertically in the barrel l0 and communicates with the counterbore [2. The top portion I 8 of the barrel II is flat intermediate its end portions as shown in Figs. 4 and 5 of the drawing.

A rotatable key guide I! is mounted in the bore II. This rotatable key guide I! is flanged as at I8 which flange is seated in the counterbore l3 when the key guide I! is in position. The key guide I! is closed at its back end portion and it also has a tortuous keyway I9 substantially throughout its length which communicates with openings 20 in its top side.

The key guide I! is rotatably anchored in the bore ll through the medium of a screw 2| which passes through an opening in the back of a swinging lever 22.

The lever 22 has a cup shaped end portion 23 in which is received the end of the key guide I! with the cup shaped end portion 23 engaged in the counterbore l2. The cup shaped end portion 23 of the lever 22 also has an opening 24 formed therein for receiving a tumbler pin to lock said portion 23 to the key guide I! to rotate E5 PATE Q 1 05 A 2,247,621. f V LOCK- MECHANISM I RobertA. S peer, Detroit, Application July 30, 1940, Serial'No. 348,510" P1 therewith on insertion and turning of a proper key.

Pins 25 in the bores M are pressed by springs 26 against pins 21 in the key guide I! while a pin 28 is pressed by a spring 29 against a pin 30 which is engaged in the opening 24 of the cup shaped portion 23 of the lever 22 and one of the openings of the key guide [1.

The springs 26 and 29, and pins and 28 are held in position by a cover plate 3| as shown in Figs. 4 and 5 of the drawing.

The lever 22 may be engaged with a bolt 32 as shown in Fig. 3 or otherwise used to operate a locking bolt.

When the lever 22 is operated to move the bolt 32 the key 33 is inserted in the key guide I! at which time the pins 21 are elevated and caused to force the pins 25 to be disengaged from the openings 20 while the pin is caused to force the pin 28 from the opening in the cup shaped portion 23 of the lever 22 at which time the lever 22 may be swung by turning the key 33,

Although I have shown and described herein a preferred embodiment of my invention it is to be definitely understood that I do not desire to limit the application of the invention thereto, and any change or changes may be made in the structure and arrangement of the several parts, within the spirit of the invention as claimed.

What is claimed is:

1. In a device of the character described, a lock mechanism including a body member having a longitudinal bore terminating in counter bores therein and further having vertical bores therein, a flanged key guide mounted in said longitudinal bore with the flange in one of said counter bores, a cup-shaped member rotatably secured to said key guide and engaged in said other counter bore and a lever extending from said cup-shaped member.

2. In a device of the character described, a lock mechanism including a body member having a longitudinal bore and vertical bores therein, a key guide engaged in said longitudinal bore, a cup-shaped member rotatably secured to said key guide to hold the same in said longitudinal bore, key operated detent means in said vertical bores releasably engaged with said key guide, a lever extending from said cup-shaped member for movement therewith and key operated means engageable with said cup-shaped member for rotating the same with said key guide.

3. In a device of the character described, a lock mechanism including a body member, a rotatable member mounted in said body member, a

cup-shaped member rotatably'mounted on said rotatable member, key operated slidable means for engaging said cup-shaped member with said rotatable member for rotation therewith and a lever extending from said cup-shaped member.

4. In a device of the character described, a lock mechanism including a body member having a longitudinal bore terminating in counter bores therein and further having vertical bores therein, a flanged key; guide having openings therein mounted -in said longitudinal bore with the flange in one of said counter bores, a cup-shaped member rotatably secured to said key guide and err gaged in the other of said counter bores, said in said key guide for engagement in the opening in said cup-shaped member touliqtato;thelsamel gaged in said other counter-bore, saidcup-shaped member having a vertical bore therein, pins in said vertical bores in said body and key guide, one of said pins in said body being engageable in thelverti cal bore in said cup-shaped member, and

a lever extending from said cup-shaped member.

ROBERT A. SPEER.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2597477 *Oct 25, 1948May 20, 1952Haislip Albert SCollapsible camp stove
US3151477 *Jun 19, 1961Oct 6, 1964Horacio Balestrini RobertoCylinder locks
US4545224 *Oct 27, 1983Oct 8, 1985Kbl CorporationBicycle lock
US5016455 *Jun 8, 1990May 21, 1991Lori CorporationKey unlocking and retaining method and apparatus
US5431033 *Apr 28, 1993Jul 11, 1995Barrett; Joseph S.Steering wheel and ignition locking device for a vehicle
US5431034 *Sep 23, 1993Jul 11, 1995Tong-Lung Metal Industry Co., Ltd.Cylinder lock with removable and replaceable key plug
US6089059 *Nov 12, 1998Jul 18, 2000I Ding Metal Enterprise Co., Ltd.Cylinder lock
US6584819 *Feb 6, 2002Jul 1, 2003Chung-I HungLock with two layers of lock mechanism
US8096155 *Jul 11, 2006Jan 17, 2012Newfrey LlcVariable shear line lock cylinder
US9200473 *Jul 14, 2011Dec 1, 2015ABUS August Bremicker Söhne KGRekeyable lock cylinder, rekeyable padlock and method of rekeying
US20060260371 *Jul 11, 2006Nov 23, 2006Williams Alston EVariable shear line lock cylinder
US20070017265 *Jul 17, 2006Jan 25, 2007Assa AbLock device
US20130014548 *Jul 14, 2011Jan 17, 2013Abus August Bremicker Soehne KgRekeyable lock cylinder, rekeyable padlock and method of rekeying
DE1027098B *Jul 5, 1952Mar 27, 1958Yale & Towne Mfg CoMehrtouriges Riegelschloss fuer zwei verschiedene Schluessel
DE2905565A1 *Feb 14, 1979Sep 27, 1979Grundmann Gmbh GebDoppelzylinderschloss
Classifications
U.S. Classification70/493, 70/421, 70/380
International ClassificationE05B27/00, E05B27/04
Cooperative ClassificationE05B27/00
European ClassificationE05B27/00