CN1130711A - Interconnect mechanism for dead bolts and entry locks - Google Patents

Abstract

The invention relates to a linking mechanism which is used between a main door lock and an attaching non-spring latch which is arranged on a door, including a rigid mounting plate which is fixed on the inner surface of the door; a bottom cam which can be rotatably arranged at the vicinity of a bottom end of a lock hole cover board and be combined with a door inner rotating rod spindle by operation; a top cam which can be rotatably arranged at the vicinity of a top board of the lock hole cover board and be combined with a non-spring bolt finger rotating rod, and the finger spindle rotating rod penetrates the cam; a device which can draw back the two lock bolts to simultaneously rotate the top cam and the bottom cam as a response to the motion of the inner rotating rod when the non-spring latch is locked, and the attaching non-spring latch can be operated by a key at the outside of the door or be operated by the door inner rotating rod or the finger rotating rod at the inside of the door.

Description

The coupling mechanism of dead bolt and door lock

The present invention relates generally to door lock, and particularly the connection of one group of lock is located in the emergency exit, and it can be used between main body door lock and the additional dead bolt.

Though grille main body or spring impact bolt can provide enough safeties under many occasions, in other occasions, at this moment the user need just need the lock of an additional dead bolt than the more reliable safety of single latch.In this case, run into emergency by being locked regional occupants, for example can to go out rapidly be very important for fire or other dangerous situation.When this " emergency " when occurring, open a plurality of lock bolts rapidly with the difficulty of minimum is particular importances with being too busy to think.For this reason, people have advised just can open latch or dead bolt simultaneously as long as a moving latch is opened with knob or handlebar many.These are locked on the complexity of complexity, cost, operability, life-span and installation and maintenance and differ.

Some this class device is provided among a kind of embodiment of mortise lock.Though mortise lock is very solid in its shell, seriously weakened the door body for lock being installed to a last required huge cavity, therefore,, the aligning position just is easy to split as long as kicking.No matter dig out still field fabrication in advance and in door, draw out the increased sharply cost of this lock assembling of big mortise lock cavity institute's time-consuming and labor cost.

Many connection dops being arranged, be generally flat, is rectangle basically.The U.S. Pat 4,129,019 of the common transfer of E Daier has been described a kind of such dop, quotes its manual as a reference at this.A lot of right and wrong manual and reversible, need not to consider which side of pivot when therefore using at door.They are installed easily, can be used for standard dead bolt and spring impact bolt, because the lock of one group of preferred compositions only needs little lock chamber, the weakening of door is minimum.This dop is Bao Youping again, is easy to hidden thread escutcheon back in most lockset groups.Their structures are also very solid, but obviously manufacture more expensive than the non-dop type coupling arrangement of standard.

Generally speaking, two breech lock groups have dead bolt lock, are using key operatedly outdoors, operate with a finger dwang in door.Spring latch (the main lock of door) is operated in outdoors by key insertion balanced handle or bull stick, passes through push button or the operation of push-jump button in a globe valve or the bull stick in door.Respectively lock independent operation when locking, but the occasion that is used for " urgent protection " requires only to rotate in the door of the main lock in an Xiamen knob or bull stick is just unblanked.Non-spring catch and spring latch all need use key when entering from the outside usually.Only in the lock group, load onto coupling arrangement and could in door, open two locks simultaneously by rotating bull stick or knob.

Need a lot of elements owing to constitute typical coupling arrangement, thereby assembling and maintenance are all very difficult.After multicomponent so is with wearing and tearing for a long time, because can not centering when cam, rod member, gear and wheel child-operation, also can make coupling arrangement malfunctioning.

The known disadvantages of existing door lock coupling arrangement has been narrated in the front.It is very useful that a kind of substitute that can overcome one or more those defectives is provided.Therefore, provide a kind of suitable substitute, its contained feature gives open more fully in the back.

One aspect of the present invention is a coupling mechanism that is used for a primary door latch and is contained in a kind of additional non-spring catch lock on the door, comprises that one is fixed on the rigidity installing plate on the inner surface; One is installed in rotation on a bottom end vicinity of an escutcheon plate and the end cam that engages with the axle operation of the knob installed or bull stick in, and one is installed in rotation near escutcheon plate one top and with a non-spring catch finger bull stick axle of passing wherein and operates the top cam that engages; With when non-spring catch is in locked position the response described be loaded on the door in knob or the action of bull stick make described top cam and end cam draw back the device of two lock bolts simultaneously.

For a more detailed description to the present invention below in conjunction with accompanying drawing, above-mentioned and other aspect will be apparent.

Fig. 1 is a decomposition diagram, shows the parts of an embodiment of door lock coupling arrangement of the present invention;

Fig. 2 be another from the phantom drawing that door is seen away, show the thin portion of coupling mechanism;

Fig. 3 is that a propylaeum has been seen next phantom drawing, shows other thin portion of this coupling mechanism.

Can understand this coupling mechanism best with reference to figure 1-3.Because spring latch, dead bolt and key cylinder are standard component, are known in the art, their part has been omitted.One has a primary door latch and an additional non-spring catch lock that generally is installed in this primary door latch top.The position that should state the two can intermodulation, or the door of installing for vertical oscillation the two also can adjacently arrange.For convenience, also for consistent, adopt the mounting means of " no swinging door is last " here, but this is just in order to illustrate with general custom.

The critical piece of coupling mechanism is that a rigidity installing plate 11 that is installed on an inner face, is clipped in a slide plate 20 and an escutcheon plate 50 on the installing plate slidably by finger 13, and it is hidden on being loaded on door the time that its back of the body chamber size should be enough to other parts with installing plate 11 and coupling mechanism.Thread escutcheon 50 is supporting rotationally and is limiting interior bull stick 55 (or knob) and the end cam 30 that rotates together.Similarly, a finger dwang 58 and top cam 40 also support rotationally that by thread escutcheon 50 the two is also similarly retraining.This kinematic constraint is by a protuberance or a bead being provided on each axle, and providing corresponding groove or chamber on each cam, otherwise or and realizes.These features are not shown, generally all are to use like this because produce the consistent device that rotates of two parts.Also have pin 12 on the installing plate 11, extend in the door from its back.This is in order to strengthen cylinder lock, otherwise cylinder lock will become the semi girder that stretches out from the door limit in the door lock chamber.Sliding panel 20 is stuck on the installing plate 11, but the vertical axis that can be parallel to installing plate is free to slide.This makes the ends 21 cam driver and top 22 driven pulleys on demand or drive or accompany or follow end cam 30 and top cam 40.

End cam 30 and top cam 40 are all answered symmetry, thereby need not to consider it is how moving that hand needs when using, the two is remained on interior bull stick axle 65 and the finger bull stick 68 by pushing clasp 31 respectively, the pushing clasp is Ting Naman fastener (Tinnerman fatener) for example, this ring has an advantage, though the tolerance build-up of holding is arranged when making, axle is without machine, and packing ring 51 plays the effect of lining respectively between bull stick 55 and the thread escutcheon 50 in finger bull stick 58 reaches.End cam 30 is by spring bead 110 and a torsion spring 100 engagements.The other end of spring 100 is fixed on the escutcheon plate 50, thereby provides anti-inclination to support to bull stick 55.When using a knob rather than bull stick, use the less spring of an elastic force.The size and the desired rotary resistance of knob or bull stick depended in the selection of spring constant.

During operation, as long as bull stick 55 1 changes downwards, thereby cam 30 promotes sliding panel 20 with regard to rotation and with following cam follower 21 engagements.Overhead cam actuator 22 and overhead cam 40 engagements, if non-spring catch be keyed rotation overhead cam 40 make non-spring catch draw back with impact bolt.If non-spring catch is keyed not, move downward at bull stick 55 and it can not locked when drawing back the spring impact bolt.A backlash feature of the present invention make non-spring catch not during keyed cam driver 22 miss top cam 40 fully, non-spring catch can be opened by finger bull stick 58 and bull stick 60 in door, opened by the key cylinder (not shown) outdoors, it can locked by key cylinder outdoors, in door by on the finger turnbuckle lock, motionless bull stick 55 manual operation non-spring catches of energy so.

Maximum advantage of the present invention is be close to medelling easy. This mainly is because mechanism The minimum number of middle used unit, and be assembled in easily on thread escutcheon and the installing plate. Cause This, it has simplified assembling with a kind of method of economy, has strengthened durability, has improved reliable The property. The thread escutcheon " assembly " of assembling can be delivered to the working site, and the labour is significantly saved Economize.

Claims (6)

1. one kind is used for primary door latch and is positioned on coupling mechanism between the additional non-spring catch lock on the door, comprises that one is fixed to the rigidity installing plate on the inner surface of door; One is installed in rotation on the end cam of a base plate vicinity of an escutcheon plate, it has and is used for the device that engages with the operation of the axle of an interior bull stick, one is installed in rotation near the top cam described escutcheon plate one top, have the device of pointing the bull stick operable engagement with a non-spring catch, the axle of this finger bull stick is passed the top cam; During with the state that is in keyed when non-spring catch in the described door of response the motion of bull stick make described top cam and end cam rotate the device of drawing back two lock bolts simultaneously.

2. coupling mechanism as claimed in claim 1 is characterized in that the described device that is used for engaging with an interior bull stick operation is included in the non-circular hole on the cam of the described end, and described hole makes described cam rotate with described axle.

3. coupling mechanism as claimed in claim 1, it is characterized in that, be included in one on the described finger mandrel with a device that passes the non-spring catch finger mandrel operable engagement of described top cam and drive projection, this projection engages with a driver slot on the described top cam.

4. coupling mechanism as claimed in claim 1, it is characterized in that, the motion that is used for when non-spring catch is in the state of keyed bull stick in the described door of response causes that top cam and end cam rotate simultaneously with the device of drawing back two lock bolts and comprises that one can reciprocally be stuck in the sliding panel on the described installing plate that this sliding panel has the upper and lower cam drive surface that the rotation of accepting cam of the described end also drives the rotation of top cam selectively.

5. coupling mechanism as claimed in claim 2 is characterized in that, the described non-circular hole on the cam of the described end can be one to have the hole that at least one inwardly stretches out the protrusion piece that engages with respective grooves on the described axle.

6. coupling mechanism as claimed in claim 1, it is characterized in that, be used for referring to that with the non-spring catch list that passes described top cam device that mandrel operation engages comprises that one has the hole of at least one protrusion piece that inwardly stretches out that engages with a corresponding groove on the described axle.

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