CN1024829C

CN1024829C - Dual backset latch

Info

Publication number: CN1024829C
Application number: CN 88107463
Authority: CN
Inventors: 让·M·斯莫利根; 基思·马修思
Original assignee: Schlage Lock Co LLC
Current assignee: Schlage Lock Co LLC
Priority date: 1988-10-27
Filing date: 1988-10-27
Publication date: 1994-06-01
Anticipated expiration: 2003-10-27
Also published as: CN1042210A

Abstract

The present invention relates to a dead bolt assembly which is characterized in that the dead bolt assembly is provided with a novel actuation assembly, and one of two retreating quantities of a handle can be selected according to a standard habit. Workpieces do not need to be replaced, or a lock core or a knob is reversed. Cam actuators are two parallel rotary cams and rotate around two parallel axial lines, and the axial lines are the central lines of two shafts in an ordinary industrial purpose. A driving rod for a lock core of a door lock is received by the two cams on one of two predetermined retreating positions, and each cam can respectively enable a pin bolt to rotate toward an arbitrary direction through coupled opposite cam surfaces. The cam surfaces are matched with a pin bolt dialing plate, and are capable of changing the rotation of the cams into the forward extending or retreating action of the bolt with a connected follower.

Description

Dual backset latch

The present invention relates to a kind of dead stud structure.

Traditional door with dead bolt (dead bolt) structure in, the so-called amount of retreating (backset-measurement) is meant door edge from the dress bolt to the distance of dialling the spigot axis of pitch, the bolt controls is generally lock core rod, and is during rotation that bolt is mobile forward or backward.The amount of retreating is measured on the vertical direction of door edge.The amount of retreating is in industrial standardization mostly.Two amounts of retreating commonly used are 2 3/8 and 2 3/4 inches.In the past, most dead bolt manufacturers produce and supply two kinds of stud structure patterns that obvious difference is arranged, to satisfy the requirement of the two kinds of amount of retreating positions.In the industry, dead stud structure there are clear and definite needs, can do arbitrary selection to the amount of retreating, and need not change component and/or dismantle dead bolt mechanism, or use the dead bolt of special shape.Because many non-professional setters are arranged in the industry, just need to make select the amount of retreating mode simply, reliably and easily finish, do not need renewal part or assembling and the complicated interconnection element of refitting.

Therefore, the purpose of this invention is to provide a kind of door and go up the dead bolt composite member of installing etc. of this class, wherein be combined with unique amount of retreating and regulate characteristics, can at least two kinds of yardsticks, select the suitable installation amount of retreating easily.

According to the present invention, a kind of dead stud structure that is installed on the common pattern door comprises: vertical reciprocating dead bolt in the housing on being contained in door, stretch out from Men Yuan in the time of on progressive position, and fall back on substantially in the time of on going-back position in the edge; Dead bolt manipulation device in housing, it has vertical front end, doing running with bolt is connected, having vertical rear end is connected by cam gear and the running of actuation gear do, described actuation gear can rotate around transversal line, mobile manipulation device moves back and forth bolt, distance between the transversal line of door edge and actuation gear constitutes the amount of retreating, it is characterized in that but the cam that described cam gear comprises two bridge pieces is coupled, with parallel and transversal line that depart from rotates substantially parallel around two, described actuation gear is connected with described manipulation device, and the rotation of described actuation gear become moving back and forth of described manipulation device, thereby described dead bolt is moved back and forth.

Fig. 1 is for using the lateral view that the present invention retreats the dead bolt composite member of adjusting characteristics optimum implementation;

Fig. 2 is a lateral view, shows dead bolt housing left side details;

Fig. 3 is a rear end view, shows dead bolt housing left side details;

Fig. 4 is the lateral view of dead bolt housing right-hand part details;

Fig. 5 is the rear end view of dead bolt housing right-hand part details;

Fig. 6 is dead bolt follower control panel details vertical view;

Fig. 7 is a bolt spring vertical view;

Fig. 8 is a bolt spring lateral view;

Fig. 9 is a front cam details lateral view;

Figure 10 is a front cam details front end view;

Figure 11 is a back cam details lateral view;

Figure 12 is a back cam details rear end view.

Referring to Fig. 1, a dead bolt composite member is represented its integral body with label 1.The dead bolt composite member of this general type is common in industry, and substantial cylindrical bolt shell is arranged, and inserts in the hole of door edge, and is fixing with panel 3 on the door edge.As shown in Figure 1, a dead bolt 2 stretches out from the bolt shell vertically, reaches outside the panel 3.Bolt 2 is installed, is made in the bolt shell to move back and forth.

The operation flange of bolt is that locking bar 20 is connected with bolt 2, is provided with cam-follower hole 21, and hole 21 can be rectangular opening, forms wedge cams surface 22 and 23 on its two ends.But a side opening in hole, the convenient manufacturing or assembling.Locking bar 20 also is provided with cam following (idler) hole 23, holds that roughly the follower of ship shape (idler) 24(Fig. 6 is the most clear), follower 24 has cam hole 25 around front cam 30A and back cam 30B.In whole working cycles, follower helps to limit front cam 30A and back cam 30B makes parallel sliding.This can guarantee the coupling between smooth operation and two cams, and finishes resetting of no driving cam.The steel pin 5 that hardens can be inserted in the pin-and-hole 6, help to prevent that bolt is by sawed-off.

Bolt group shell (a latch works housing) 4 is fixing on bolt shell left side, is made of two body bent plates.Each half one of Pei Dui housing 10L and 10R comprises pair of cams spigot surface 50A and 50B side by side, constitutes the swivel bearing of cam 30A and back cam 30B.Front cam 30A and back cam 30B rotate in the cam spigot surface.The rotation of front cam 30A or back cam 30B causes the rectilinear translation of bolt-lock bar 20, thereby makes bolt 2 along the translation of bolt running composite member axis, bolt is advanced or retreats.When arbitrary cam clockwise rotates, cause retreating of bolt 2.

Fig. 3 is the end-view of housing 10L, shows the details of housing configuration, margining tablet 31L and spring guide piece 32L.

Fig. 4 and 5 shows the right-hand part of housing 10R.Those of ordinary skill in the art can understand, and left half housing and right half housing are combinable, with the device of using always in any locking industry that makes things convenient for, such as fastening with curved tab or recessed joint etc.

Fig. 7 and 8 shows the details of working spring 26, is essentially the crooked steel wire spring, is clamped in the housing with bearing pin (the shaft stake) 27 and the latch (stop stake) 28 that are located among spring guide piece 32L and the 32R respectively.Available other spring holding device, for example curved tab etc. is for suitably can elective structure.Can be clear that from Fig. 9 and 10 front cam 30A establishes spring rising cam 29, when cam 30A bolt protract and going-back position between when rotating, cam 29 is raised the end of spring 26.Therefore, when protracting and going-back position between during translation, spring provides a kind of " feel ", in case setting assists again cam is held in a predetermined position.Front cam 30A and back cam 30B have basic shaft clip (hub) 34A of portion and 34B, and 35A of cam work portion and 35B are arranged, and have arc to assist bolt to beat.Each cam also is provided with parallel interaction portion or line part 36A and 36B, and has one to discharge recess 37A and 37B, and purpose is to make the two ends of cam strengthen overlap joint, can understand for being familiar with this area person.

After the assembling, front cam 30A and back cam 30B be assemblied in housing cooperation two and half ones among 10L and the 10R, shaft clip 34A and 34B and cam spigot surface 50A and 50B swivel bearing engage.So, when the front and back cam be centered around two cam spigot surfaces in form in the heart departing from and during parallel two axial lines rotation, substantially parallel orientation arranged.Before and after cam 30A and 30B keep this relation by cam-follower 24 substantially, and and the cam face 22 and 23 of locking bar 20 interact, when front cam or back cam rotation, make bolt do translation.Selected to cam face 22 and 23 angles makes it to interact with the tip of front and back cam 30A and 30B, so that when bouncing to the end on either direction, bolt-lock is fixed, and cam does not rotate bolt just can not translation.The rotation of cam is generally by outer lock core (lock cylinder) and/or inner lock core, or refers to twist knob (thumb turn) and control.

Wire spring 26 also is housed between housing 10L and the 10R,, and, prevents its rotation by spring tab 42 and latch 28 effects with bearing pin 27 location of passing spring 41 rounded portions.Spring 26 helps front cam moving to arbitrary end movement to cam 29 reinforcings in the time of on this position, thereby also back cam 30B is placed on its end position by follower 24, and the spring feel of dead bolt is provided.Spring 26 also guarantees like that cam nose to be rotated to as mentioned above bolt snapped on arbitrary end and locks, when rotating cam again till.

Characteristics of the present invention are to use the bolt 2 and the locking bar 20 of monomer, improve the ability of its lateral force resistance, and for the big elongation of the bolt that the present invention allowed, this is an important feature.

Implement the present invention is narrated according to the best above, except that right claim institute limited range, the intention of the unmatchful invention restriction of inventor.

Claims

1, a kind of dead stud structure that is installed on the common pattern door comprises: vertical reciprocating dead bolt in the housing on being contained in door, stretch out from Men Yuan in the time of on progressive position, and fall back on substantially in the time of on going-back position in the edge; Dead bolt manipulation device in housing, it has vertical front end, doing running with bolt is connected, having vertical rear end is connected by cam gear and the running of actuation gear do, described actuation gear can rotate around transversal line, mobile manipulation device moves back and forth bolt, distance between the transversal line of door edge and actuation gear constitutes the amount of retreating, it is characterized in that but the cam that described cam gear comprises two bridge pieces is coupled, with parallel and transversal line that depart from rotates substantially parallel around two, described actuation gear is connected with described manipulation device, and the rotation of described actuation gear become moving back and forth of described manipulation device, thereby described dead bolt is moved back and forth.

2, as the dead stud structure of claim 1, it is characterized by: described cam gear is coupled it by hunting gear in their whole operating ranges, does substantially parallel rotation.

3, as the dead stud structure of claim 1, it is characterized by: described cam gear alternately contact with cam face on the described manipulation device respectively, and contacts with each other, so that realize basically adding beating of bolt, and makes device realize a plurality of possible amounts of retreating.

4, as the dead stud structure in the claim 1, it is characterized by spring assembly is set, when bolt from retreating to protracting or stretching to when retreating running in the past, spring contacts with cam, makes the anchoring position and produces feel.

5, as the dead stud structure of claim 1, it is characterized by the bridge piece cam cooperation that described manipulation device is provided with lock cam device and described two couplings, it is fixed that bolt is locked in the position of protracting.

6, as the dead stud structure of claim 1, it is characterized by the bridge piece cam cooperation that this described manipulation device is provided with lock cam device and described two couplings, bolt is locked on going-back position.

7,, it is characterized by described manipulation device and described dead bolt is an overall structure, and described manipulation device is the rigid extensions of described dead bolt as the dead stud structure of claim 5.