JP2007070934A - Slider driving mechanism of dead bolt for electric lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hook lock with which an existing door lock can be easily replaced, and in which an anti-abnormal-operation mechanism of a dead bolt for use in the prevention of the overcurrent of an electric drive motor is built. <P>SOLUTION: A slider unit 101 is fitted into the outer peripheral part of a dead bolt unit 6, and urged to a normal position by a dead spring 10 which is provided in the dead bolt unit 6. A hook unit 7 is arranged in the dead bolt unit 6, and operated by using a hook operating shaft 13. When the slider unit 101 is slid in a locking direction by a potbellied gear unit 17 in locking, the dead bolt unit 6 is also slid in the same direction via the dead spring 10. When the dead bolt unit 6 cannot be operated due to some sort of an abnormal state, only the slider unit 101 is moved, and the dead spring 10 is charged. When the abnormal state is eliminated, the dead bolt unit 6 is shifted to the locking position by the dead spring 10. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a mechanism for preventing abnormal operation and operation of a door lock that is electrically or manually driven and prevents an overcurrent from flowing to a driving motor or the like due to abnormal operation of a dead bolt.

In this type of conventional electric lock, since an abnormal operation and motion prevention mechanism is arranged in the dead bolt, it is difficult to incorporate a sickle mechanism. Even if the sickle mechanism is placed outside the dead bolt, a space is required to place the sickle mechanism, and the entire door lock becomes large, making it difficult to install it on the door, especially in a narrow vertical frame. there were. In addition, since the mechanism is disposed in the dead bolt, the dead bolt has a small cross-sectional area and the thickness of the dead bolt is reduced, and there is a problem in the deformation strength of the dead bolt due to opening. (For example, see Patent Document 1)
Patent No. 3531985

In the conventional configuration, in order to arrange the sickle member, there is a problem as described above in which the abnormal operation and operation preventing mechanism hinders the placement of the sickle member. It was difficult to propose a door lock.

The present invention is a door lock with a sickle which improves the crime prevention performance by arranging a sickle member in the dead bolt by devising the arrangement configuration of the abnormal operation and motion prevention mechanism without changing the position dimension of the conventional thumb turn and dead bolt. The purpose is to provide a slider driving mechanism for dead bolts.

In order to achieve the above object, according to the present invention, in the conventional deadbolt, the abnormal operation and operation prevention mechanism is arranged in the deadbolt, but the slider unit for preventing abnormal operation and operation on the outer periphery of the deadbolt. And a hole for inserting a spring for forcing the slider unit to always be in a normal position is provided in the dead bolt. By comprising in this way, the space which can arrange | position a sickle member in a dead bolt is securable.

As described above, by adopting the configuration of the dead bolt and the slider unit of the present invention, the conventional thumb turn and the dead bolt are maintained in the dimensional position relationship, and the conventional door is not limited in the dimension of the lock mounting. It is possible to realize a lock with a sickle member arranged and configured to improve crime prevention performance in a dead bolt that can be exchanged and attached to the door.

An embodiment of the present invention will be described with reference to FIGS.

In FIG. 1, the deadlock unit 6 and the sickle unit 7 of the door lock are sandwiched between a deadbolt lower guide member 2 attached to the chassis 1 and a deadbolt upper guide member 3 attached to a chassis lid (not shown). Hold configured. A lower Dalma gear receiver 16 is welded and fixed to the chassis 1, and a Dalma gear unit 17 is rotatably fitted and guided so as not to come out with a Dalma gear presser 18.

In the slider unit 101, the lower slider 4 and the upper slider 5 are welded and integrated at the concave portion. At the other end of the concave portion, the slider support 8 is attached to the upper and lower sliders 4 and 5 with screws 9. (Figure 2)

A dead spring 10 is inserted into the dead bolt unit 6. The above-described slider unit 101 is fitted into the outer periphery of the dead bolt unit 6, the dead spring presser 11 is inserted, and the slider unit 101 and the dead spring presser 11 are assembled to the dead bolt unit 6 with the dead guide pins 12. (Figure 3)

The dead bolt unit 6 is caulked with a sickle operating shaft 13. The sickle operating shaft 13 fits into the sickle roller 14 and smoothly operates the sickle unit 7. (Figure 3)

The sickle roller 14 incorporates a sickle unit 7 to form a dead bolt unit 6. (Figure 3)

The circular hole at the base end of the sickle unit 7 is configured to fit in a column fitted in a chassis (not shown) so that the sickle unit 7 rotates in association with the operation of the dead bolt unit 6. (Figure 1)

The sickle unit 7 includes an upper sickle plate, a lower sickle plate, and an intermediate plate, and is integrated with an assembly rod. The configuration of the unit is not limited as shown in the drawing, and can be integrated with a sintered alloy or the like.

Next, the operation will be described.

In FIG. 1 or FIG. 4, when a thumb turn (not shown) attached to the upper part of the Dalma gear presser 18 is rotated clockwise, the Dharma gear unit 17 related to the thumb turn slides the slider unit 101 in the locking direction. . That is, in FIG. 5, it slides in the (a) direction.

As the slider unit 101 moves, the dead bolt unit 6 also slides in the same direction (A) through the dead bolt spring 10. At that time, the dead bolt unit 6 includes a tip guide wall 2a provided on the dead bolt lower guide member 2 in FIG. 1, a tip guide wall (not shown) provided on the dead bolt upper guide member 3, and a dead guide pin. 12 is guided so as to move linearly by the dead guide pin guide 2b shown in FIG. (FIGS. 1 and 5)

As the dead bolt unit 6 moves, the sickle operating shaft 13 and the sickle roller 14 rotate the sickle unit 7 counterclockwise (b) around the circular hole at the root end of the sickle unit 7. The state shown in FIG.

The above explanation is for the normal operation. In FIG. 6, if the dead bolt unit 6 cannot be operated due to some abnormality, the Dharma gear unit 17 is rotated clockwise by the rotation of the thumb turn (not shown). When this is done, only the slider unit 101 moves in the direction of the arrow (A), and the dead bolt spring 10 is charged as shown in FIGS. When the abnormality of the dead bolt unit is released from this state, the dead bolt unit 6 is moved to the locking position shown in FIG.

Although not shown, the electric drive is configured so that the gear on the drive electric motor side meshes with the Dalma gear unit 17 to drive the electric motor.

When the Dalma gear unit 17 is rotated counterclockwise by electric drive or manual drive from the locked state of FIG. 5, the slider unit slides in the direction opposite to the arrow (A), and at the same time, the dead bolt unit 6 also moves in the same direction. Linked to and forcibly moved. The dead spring presser 11 hits the wall surface of the chassis 1 immediately before the end of movement, and the unlocked state shown in FIG.

By configuring the lock as described above, the occupied space can be effectively used with a reduced number of parts. This makes it possible to achieve an improved configuration of the sickle member in the deadbolt without adding extra parts, without destroying the dimensional position relationship between the conventional thumb turn and deadbolt, and abnormal operation. The slider mechanism that prevents the operation can also be juxtaposed with the dead bolt portion. Therefore, it helps to reduce assembly cost and parts cost and contributes to improvement of crime prevention performance.

Assembly configuration diagram Slider unit assembly diagram Assembly diagram of dead bolt unit and slider unit Top view of unlocked state Top view of the locked state Top view of abnormal operation and operating state AA sectional view of FIG. BB sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Chassis 2 Dead bolt lower guide member 2a Tip guide wall 2b Dead guide pin guide
3 Dead bolt upper guide member 4 Lower slider 5 Upper slider 6 Dead bolt unit 7 Sickle unit 8 Slider support 9 Screw 10 Dead spring 11 Dead spring presser 12 Dead guide pin 13 Sickle operating shaft 14 Sickle roller

15 Roller 16 Lower Dalma Gear Receptor 17 Dalma Gear Unit 18 Dalma Gear Presser 101 Slider Unit

Claims (2)

A deadbolt for door locks, which is configured to be slidably mounted on the outer periphery of the deadbolt unit so that the slider unit can be slid on the outer periphery of the deadbolt unit in conjunction with the thumb turn. The configuration of the slider unit. The slider unit is configured in a U shape, and features a dead guide pin associated with a dead spring and dead spring presser that sandwiches a dead bolt, restores the slider unit acting as an abnormal operation of the dead bolt unit, and an operation prevention mechanism The configuration of the slider unit according to claim 1.