US1723665A

US1723665A - Lock mechanism

Info

Publication number: US1723665A
Application number: US239864A
Authority: US
Inventors: Arthur E Thomas
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-12-14
Filing date: 1927-12-14
Publication date: 1929-08-06
Anticipated expiration: 1946-08-06

Description

Aug. 6, 1929. THOMAS 1,723,665

LOCK MECHANI SM Filed Dec. 14, 1927 2 Sheets-Sheet 1 IHVENTOR ATTO R H EYS.

Patented Aug. 6, 1929.

UNITED STATES PATENT OFFICE.

ARTHUR E. THOMAS, OF WAYNE, MICHIGAN.

LOCK MECHANISM.

Application filed December 14, 1927.

My invention relates to improvements in look mechanism.

An object is to provide simple, positively acting, easily operable lock mechanism of strong sturdy construction wherein the lock bolt is reciprocated over a substantial distance from a retracted to a projected position.

A further object is to provide such a lock of the dead bolt type wherein the bolt is cored out to provide longitudinally extending, perpendicularly intersecting guideways, through one of which guideways a pair or operating spindles extend, each spindle being provided with a cam roll supported for rotation through the other guideway, one roll operable to reciprocate the bolt and the other operable to lock the bolt against reciprocation, one cam roll being lrey controlled and the other not.

Other meritorious features and advantages of my improved lock mechanism will more fully appear from the following specification, appended claims and accompanying draw ings, wherein- Fig. 1 is a side elevation of my improved lock structure with a portion of the casing removed, the bolt being in the projected position.

Fig. 2 is aside elevation of the structure shown in Fig. 1, the bolt being in the retracted position. a

Fig. 3 is a vertical sectional view taken on line 3-3 of Fig. 1. a I

Fig. 4 is a horizontal sectional view taken on line l l of Fig. 3.

Fig. 5 is an elevation of one edge of the latch bolt.

Fig. 6 is an elevation of the opposite edge of the latch bolt.

Fig. 7 is a fragmentary elevation of a portion of the casing taken on the line 7-7 of Fig. 3.

Figs. 8 and 9 are elevations of two cam rolls.

I provide a lock bolt casing which comprises a box-shaped portion 10 and a cover 12 secured thereto by bolts or otherwise. The portion 10 is shown in Figs. 1 and 2 with the lock bolt mechanism disposed therein and apertures 14 are illustrated through which bolts may be passed to secure the lid 12 there over. A look bolt 16 is slidably supported within the casing being entirely received within portion 10 of the casing. This lock bolt is here shown as formed of two pieces, 16 and 16 secured together by rivets 17, or in some other suitable manner. The lock Serial No. 239,864.

bolt may be fitted with a ring 18 which can be attached by a suitable connection to a remote part to actuate the same. The bolt is cored out longitudinally to provide a guideway 20 shown in Figs. 5 and 6, and a second guid'cway 22 shown in Figs. 1 and 2. These

guideways

20 and 22 intersect each other substantially perpendicularly. (iruideway 22 as compared with the guideway 20 is relatively wide. A pair of spindles 2d and 26 extend through the casing, being supported therein for rotation and through the bolt passing through the guideway 22 formed in the bolt. The spindle2el is provided at one end with suitable key-controlled lock mech-.

anism 28 and at the opposite end with a bandie 30, and the spindle 2G is provided with a handle 32 whereby the spindle may be rotated. The spindle 24 carries a cam roll 34:, a side elevation of which is shown in Fig. 8 and spindle 28 carries a cam roll 36, an elevation of which is shown in Fig. 9. The cam roll 34, carried by the spindle 24, is adapted in one position, to lock the bolt against movement but in the second position it is adapted to permit free slidable movement 01 the bolt thereover. The cam roll 36 is connected with the bolt to reciprocate the same upon rotation of the spindle 26. a

The

cam rolls

34 and 36 are positioned within the guideway 20 of the lock bolt to rotate therethrough upon rotation of their respective spindles. The cam roll 36 has an arm at the outer end of which is a pin 38, which pin projects beyond both sides of the arm and the opposite ends of which are engaged within sub-guideways formed in the bolt which are identified as 40. These subguideways extend transversely oi the bolt rom'the guideway 22 through the guideway 20 to one edge of the bolt and pin 38 travels therethrough during the rotation of the cam roll 36 to reciprocate bolt 16.

The cam roll 34 is shown in its normal position in Figs. 1 and 2 and in such position it is adapted to permit slidable movement of the lock bolt thereover. This cam roll34 has a flange 42 formed along its cam face and whenthe roll is rotated to a position of 180 distant from that shown inFigs. 1 and 2, the flanged face 42 engages the shoulders -4 l.forn1ed in the slot 20 and prevents retrac lugs 46 formed within the lock bolt on opposite sides of gateway as shown in Fig. 5 and these lugs are of the shape shown in part in dotted outline in Figs. 1 and 2.

The flanged face 42 rides over the arcuate face of the lug and the lugs serve to assist in positioning the cam roll in place in the guideway 20. It will be noted that the guideway alon one edge of the lock bolt is more narrow in part thanalong the opposite side and the-cam roll is held in place therein for rotatable movement therethrough. I

There is a spring 48 which exerts a tension on the lock bolt it being connected at one end to a. fixed point on the casing and at the opposite end to the bolt. This serves normally to exert a tension tending to hold the bolt in the projected position. a

. .There are apair of substantially parallel spring members 50 which extend transversely across I the casing on opposite sides of the spindle 24 and these serve to exert a pressure thereon tending to hold such spindle at that Y position to which it has been rotated.

It will be seen that the spindle 26 upon its rotation actuates the bolt and the spindle 24 may. berotated to lock the bolt against release. In the construction shown the lock is adapted for use as, for example, on a garage door, and a connection would be made with the llIlg. .18 to release a catch properly located. 1 1 i The lock bolt is provided along one edge with a projecting shoulder 52 which in one position engages an abutment 54 formed in the casing, as shown in Fig. l and in the see end position engages an abutment 56 formed in the casing as shown in Fig. 2.

1 'I claim 1. Lockv mechanism including a slidably supported bolt so cored out as to have longitudinally perpendicularly intersecting guide- Ways, a rotatably supported spindle extending transversely through one guideway, said spindle provided with a cam roll slidably rotatable through the other guideway, said r011 having an arm provided with a pin engaged Within a sub-guideway extending transversely of the guideway within which the roll is mounted whereby the bolt may be ,reciprocated through rotation of the spindle, a second rotatably supported spindle extending transversely through the first guideway and provided with a cam roll slidably rotatable through the same guideway as the firstcam roll, said guideway provided with a ledge adapted to be engaged by said second cam roll inone position of rotation to lock the bolt against movement.

2. Lock mechanism including a slidably supported bolt so cored out as to have longitudinally perpendicularly intersecting guideways, a rotatably supported spindle extending transverselythrough one guideway, said spindle provided with a cam roll slidably 7 reciprocated through rotation of the spindle,

a second rotatably supported spindle extending transversely through the first guideway and provided with a cam roll slidably rotatable through the same guideway as the first cam roll, said second cam roll having a flanged cam face, saidguideway being of a size on both sides of the spindle to guide said cam roll in its rotation therethrough but cut out upon one side of the spindle to permit rolation of the flanged portion of the roll therethrough, said guideway having a stop adapted to be engaged by the flanged cam face of said roll in one position of its rotation to prevent movement of the bolt.

3. Lock mechanism including a slidably supported bolt so cored out as to have 1011 itudinally perpendicularly intersecting guideways a pair of rotatably supported spindles extending through the bolt at the intersection of the guideways, each spindle provided with a cam roll supported for rotatable travel through one guideway, one of said cam rolls coupled with the bolt to reciprocate the bolt upon rotation of the roll, the other cam roll adapted in one position to permit free slidable travel of the bolt thereover and in a second position spaced 180 degrees from the first position to lock the bolt against slidable travel.

4. Lock mechanism including a slidably supported bolt so cored out as to have longitudinally perpendicularly intersecting guideways, a pair of rotatably supported spindles extending through thebolt at the intersection of the guideways, each spindle provided with a cam roll supported for rotatable travel through one guideway, one of said cam rolls having a pin engaged within a sub-guideway formed in and extending angularly with respect to the first guideway whereby the bolt is reciprocated upon rotation of the cam roll, the other cam roll having a )ortion adapted in one position to lock the lt against reciprocation and in a second position to permit free slidable travel of the bolt thereover. 5,. Lock mechanism including a slidably supported bolt so cored out as to have longitudinally intersecting guideways extending entirely therethrough, a pair of spindles extending transversely through one guideway, each spindle provided with a cam roll supported on opposite sides of the spindle in the other guideway for guided revolution therethrough, one cam roll having an arm slidable through said guideway, which arm is provided with a pin engaged within a depression formed in the guideway to reciprocate the bolt upon revolution of the arm, the other cam roll having a flanged portion revolvable through said guideway on one side of the spindle but not on the other and adapted in one position to engage a stop within the gulideway to limit the reciprocation of the 6. Lock mechanism comprising a case, a lock bolt slidably supported therein, spaced apart stops carried by the case, a projection on the bolt adapted in one position of the bolt to engage one stop and in a second position of the bolt to engage the other stop to limit the reciprocation of the bolt through the casing, said bolt provided with angularly arranged longitudinal guideways, a pair of parallel spindles extending transversely through the bolt through one of said guideways to permit slidable travel of the bolt with respect to the spindles, a cam roll carried by each spindle arranged within the other guideway to permit slidable travel of the bolt thereover, one cam roll having a pin engaged with the bolt offset the guideway through which the cam roll travels to travel slidably transversely the bolt upon rotation of the cam roll to reciprocate the bolt, the other cam roll having a flange adapted in one position of the roll to engage the bolt to prevent its reciprocation and in a second position spaced 180 degrees from the first position to permit rotation of the bolt.

In testimony whereof, I, ARTHUR E. THOMAS, sign this specification.

ARTHUR E. THOMAS.