JPH07102841A - Lock - Google Patents

Abstract

PURPOSE:To prevent breakage of clothing due to hooking at opening a door by enabling a shuttle plate to be driven by either rotation or slide, and retreating a dead bolt by a spring at separating a hand from a handle. CONSTITUTION:After releasing a lock mechanism 18 by rotationally moving a lock cam 43, by operating a handle member (not shown in the figure), the projection of the slide shaft 25 of a cam member 11 abuts to a locking projection, a shuttle plate 12 is retreated against a spring 31, and a slide member 14 is retreated so as to retreat a dead bolt 17. When a hand is separated from the handle member, the shuttle plate 12 energized by the spring 31 is advanced, and hence the dead bolt 17 is perfectly retreated through the slide member 14 stopped by a magnet member 16 and a second lever member 15. When a door is closed, the magnet mechanism 16 is attracted with the magnet 37 in a door frame, and the slide member 14 is released and moved in the C direction, so as to project the dead bolt 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a company or a private residence,
The present invention relates to a lock used for a door of various facilities such as an apartment house.

[0002]

2. Description of the Related Art Generally, conventional locks are provided with a latch bolt that advances and retreats by operating a handle of a door, a dead bolt that locks and unlocks, and a wedge-shaped latch bolt that opens the door. It was always protruding in the state. Further, even when the door is opened, the dead bolt can be projected by locking the door.

[0003]

By the way, in the above-described conventional lock, when the door is opened, the latch bolt projects to the end surface of the door. Therefore, the latch bolt guide portion of the strike protruding from the door frame surface and the tip of the latch bolt are caught in clothes or the like. It was also dangerous for children and others. Further, the dead bolt can be projected even when the door is open. Therefore, when the door is closed while the dead bolt is protruding, the door frame is damaged. Further, between the door and the door frame is usually 4-8 mm.
If there is a gap of a certain degree and only the dead bolt is provided, the door will open before the dead bolt is completely retracted. In this state, the door opens with the dead bolt slightly protruding, and the end surface of the door is dangerous. Furthermore, it is not preferable from the viewpoint of the appearance of the door end surface.

The object of the present invention has been made in view of the above-mentioned drawbacks. When the door is opened, the latch bolt and the dead bolt do not project to the end face of the door, and the dead bolt in a slightly projected state is released from the handle member. To provide a lock that is fully retracted and does not require a strike latch bolt guide. Further, it can be operated by various handle members such as a push-pull handle, a lever handle, and a grip ball.

[0005]

A lock according to the present invention comprises a cam member driven by a handle member for opening and closing a door, a shuttle plate translated by the cam member, and a part of the shuttle plate. A rotatably supported first lever member, a sliding member that engages with the tip of the first lever member, and a second lever rotatably urged by the sliding member. A member, a magneto mechanism that prohibits and permits the movement of the sliding member, a dead bolt that is moved forward and backward by the second lever member on the opening and closing end surface of the door, and a lock mechanism that regulates the movement of the dead bolt and the shuttle member. When the dead bolt is retracted by the handle member to a state where the door can be opened, and then the hand is released from the handle member, the shuttle plate biased by the spring advances and is stopped by the first lever member and the magnet member. Sliding Wood, is intended to completely retract the dead bolt through the second lever member.

[0006]

As described above, according to the lock of the present invention, when the door is opened, the latch bolt and the dead bolt are not projected to the end face of the door, and the latch bolt guide portion is not exposed from the door frame, so that the hand and the clothes are damaged. Never.

[0007]

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a plan view showing a state in which a dead bolt of a lock according to an embodiment of the present invention is projected and locked, and FIG.
FIG. 3 is a plan view showing a state in which a dead bolt of a lock according to an embodiment of the present invention is projected, and FIG. 3 is a plan view showing a state in which the dead bolt is retracted part way. The lock has a cam member 11 driven by a handle member for opening and closing the door,
Shuttle plate 12 translated by the cam member 11
A first lever member 13 rotatably supported by a part of the shuttle plate 12, a sliding member 14 that engages with the tip of the first lever member 13, and a sliding member 14. A second lever member 15 that is rotatably biased by a spring; and a magneto mechanism 16 that prohibits and permits movement of the sliding member 14.
The open / close end surface of the door is provided with a dead bolt 17 that is moved forward and backward by the second lever member 15, and a lock mechanism 18 that restricts movement of the dead bolt 17 and the shuttle plate 12.

As shown in FIG. 7, the shuttle plate 12 has a pin 19 standing upright at its tip and a slot 2 at the center.
Notch groove 21 is formed at 0 and the rear end. In addition, on both sides of the slot 20 on the lower surface of the shuttle plate 12, the locking projections 2
2, 22 are formed. Further, on the upper portion of the rear end of the shuttle plate 12, the pin 2 that is pivotally supported by the first lever member 13 is provided.
3 are erected. Then, the notch groove 21 and the lock box 26
The engaging pin 29 which is erected from is engaged, and is arranged so as to be horizontally movable within the range of the notch groove 21. Furthermore, the shuttle plate 12 is biased in the direction of arrow A by a spring 31.

The cam member 11 has a rotary shaft 2 as shown in FIG.
4 and a slide shaft 25. Both of them are loosely fitted in the concave portion 24a and the convex portion 25a, respectively. The rotary shaft 24 is rotatably supported in a hole formed in the lock box 26. In addition, the slide shaft 25 is a lock box 26.
It is arranged so as to be slidable in the elongated hole formed in. An operating piece of a handle member (not shown) is inserted into a hole 27 formed by the rotary shaft 24 and the slide shaft 25, and in the case of a rotary member such as a grip ball or a lever handle, the cam member 11 is Rotate integrally.

In the case of a push-pull handle or the like, only the slide shaft 25 of the cam member 11 is retracted, and the shuttle plate 12
Pull down. The first lever member 13 is the shuttle plate 1.
The pin 23 is axially supported by the pin 23 that is erected on the upper side of the lock box 26, and is loosely fitted to the locking pin 29 that is erected on the lock box 26 by the elongated hole 30 at the rear end. Further, the front end of the first lever member 13 is engaged with the rear end of the sliding member 14.

In the sliding member 14, the second lever member 15 is rotatably supported in the arrow B direction by a spring 32 about a shaft 33, and is urged in the arrow C direction by a spring 34. . Therefore, the tip of the first lever member 13 is sandwiched between the lower end of the second lever member 15 and the rear end of the sliding member 14.

The magneto mechanism 16 uses a pin 35 to lock the lock box 26.
The magnet surface 16a is exposed under the dead bolt 17 entrance / exit of the lock box 26 while being supported by the spring 48 in the direction of arrow D. Therefore, when the door is closed, it is attracted by the magnet 37 provided on the door frame 36 to resist the spring force, and the arrow D is drawn around the pin 35.
It rotates in the direction opposite to the direction, and the engagement with the sliding member 14 is released. When the magneto mechanism 16 does not project, since it is biased by the spring in the direction of arrow D, it engages with the sliding member 14 and restricts the horizontal movement of the sliding member 14 by the spring 34.

The dead bolt 17 has a roller 38 at the rear end and a plurality of guide rollers 39 arranged near the opening of the lock box 26 to facilitate the projecting and retracting operations from the lock box 26. There is. Also, the dead bolt 17 is
The engaging recess 40 engages with a pin 41 that is erected on the upper end of the second lever member 15. Therefore, the dead bolt 17 projects from the lock box 26 when the sliding member 14 moves in the direction of arrow C, and retracts when it moves in the opposite direction.

The lock mechanism 18 comprises a lock slide plate 42, a lock cam 43, and a click spring 44 arranged at the rear end of the lock box 26, and an arm 43a of the lock cam 43 rotatably supported by the lock box 26. The engaging recess 42a formed in the lock slide plate 42 is driven by the pin 45 provided upright to move the lock slide plate 42 in the E and F directions. Further, the lock slide plate 42 is loosely fitted to a pin 47 which is erected from the lock box in an elongated hole 46. Furthermore, the lock cam 4
3, the click spring 44 is locked between the pins 45 and 47, and stops the lock slide plate 42 only at the raised position and the lowered position, and prevents it from stopping at other positions. ing.

Next, a method of using the lock configured as described above will be described. First, in the case of opening the closed and locked door (see FIG. 1), if inside the room, operate a thumb turn (not shown) to rotate the lock cam 43 to the left,
The lock mechanism 18 is released. Next, the handle member (not shown) is operated to slide the slide shaft 25 of the cam member 11. When the handle member is operated, the projection 25b of the slide shaft 25 of the cam member 11 contacts the locking projection 22 and the shuttle plate 12 retracts against the spring 31. When the shuttle plate 12 retracts, the sliding member 14 engaged by the first lever member 13 retracts. The sliding member 14 retracts more than the retracted amount of the shuttle plate 12 due to the lever principle.

When the sliding member 14 retracts, the dead bolt 17 engaged with the engaging recess 40 through the second lever member 15 retracts and is unlocked (see FIG. 3). When the handle member is operated to retract the shuttle plate 12 and retract the dead bolt 17 via the sliding member 14, the door and the door frame 3
There is a space of 4 to 8 mm between the dead bolt 17 and 6, and the door opens even if the dead bolt 17 does not completely retract.

When the door is opened in this state and the hand is released from the handle member, the magneto mechanism 16 separates from the door frame 36 and is rotated in the direction of arrow D by the urging force of the spring 48. When the magneto mechanism 16 returns by the spring force, it engages with the sliding member 14 and prohibits the subsequent movement of the sliding member 14 to the door frame side. With the sliding member 14 fixed, the shuttle plate 12
When the spring 31 returns to the direction of the arrow A by the urging force of the spring 31, the tip of the first lever member 13 causes the second lever member 15 to move to the shaft 33.
To rotate the dead bolt 17 completely into the lock box 26 (see FIG. 4). In this way, the dead bolt 17 is completely retracted into the lock box. Therefore,
The door is opened before the dead bolt 17 is completely stored, and the dead bolt 17 is automatically stored even if the hand is released from the handle member.

Next, when the door is closed, when the door is housed in the door frame 36, the magnet 37 of the door frame attracts the magnet surface 16a of the magneto mechanism 16. When the magnet surface 16a is attracted,
The sliding member 14 is released from the engagement of the magneto mechanism 16 and moves in the direction of arrow C by the urging force of the spring 34, and the dead bolt 17 projects from the lock box 26 (see FIG. 2).

When locking, the lock mechanism 18 is operated. Specifically, the lock cam 43 that is interlocked with the thumb turn, the cylinder lock, etc. is rotated to move the lock slide plate 42.
In the direction of arrow F. When the lock slide plate 42 rises, the dead bolt 17 is restricted by the restricting portion 42a, and the shuttle plate 12 is restricted by the restricting portions 42b, 42c, respectively, so that the handle member cannot be operated and the dead bolt 17 is prohibited from moving backward. (See FIG. 1).

In the above embodiment, the case where the shuttle plate 12 is operated by the slide type handle member such as the push-pull handle has been described. However, when the shuttle plate 12 is operated by the rotary type handle member, for example, the grip ball, as shown in FIG. Cam member 1 as shown in
Rotate 1. When the cam member 11 rotates, the convex portion 25a of the slide shaft 25 abuts on the locking protrusion 22 of the shuttle plate 12 and retracts it. When the shuttle plate 12 retracts, as described above, the sliding member 1 is operated in the same manner as the slide system handle member.
The dead bolt 17 is retracted via 4 and the door opening operation is performed.

As described above, in the lock of the present invention, the dead bolt 17 is incompletely retracted (for example, several meters from the door end surface).
Even when the door is opened in a state where it is projected, it is safe because the dead bolt 17 is completely drawn inside the door by releasing the hand from the handle member. The present invention is not limited to the above embodiments, and various design changes can be made based on the technical idea of the present invention.

[0022]

As described above in detail, according to the lock of the present invention, the cam member driven by the handle member for opening and closing the door, and the shuttle plate translated by the cam member are provided. A first lever member that is rotatably supported by a part of the shuttle plate, a sliding member that engages with the tip of the first lever member, and a spring biasing member that allows the sliding member to rotate. Second lever member, a magneto mechanism that prohibits and permits the movement of the sliding member, a dead bolt that is advanced and retracted by the second lever member to the open / close end surface of the door, and movement of the dead bolt and the shuttle member. When the dead bolt is retracted by the handle member to a state where the door can be opened and then the hand is released from the handle member, the spring-biased shuttle plate advances to move the first lever member. ,
Since the dead bolt is completely retracted through the sliding member stopped by the magnet member and the second lever member,
The dead bolt is completely immersed when the door is opened, and the latch bolt guide on the strike side is not required, so it is not exposed outside the door frame and is not caught by the operator's outerwear or pants.

In particular, this can prevent a child or the like from being injured. Also, the exterior of the door can be beautifully configured. Also, it is smooth in appearance because there is no protrusion on the end face of the door. Further, since the dead bolt does not project unless the door is completely closed and the magnet attracts the dead bolt, the dead bolt does not pop out when the door is open.

[Brief description of drawings]

FIG. 1 is a plan view showing a state in which a dead bolt of a lock according to an embodiment of the present invention is projected and locked.

FIG. 2 is a plan view showing a state in which a dead bolt of a lock according to an embodiment of the present invention is projected.

FIG. 3 is a plan view showing a state in which the dead bolt of the lock according to the embodiment of the present invention is retracted partway.

FIG. 4 is a plan view showing a state in which a dead bolt is completely retracted by releasing a hand from the handle before the lock.

FIG. 5 is a plan view showing a state in which the door is opened by using a rotary grip ball or the like for the lock.

FIG. 6 is an exploded perspective view showing a cam member used in the lock of the present invention.

FIG. 7 is a plan view showing a shuttle plate used in the lock of the present invention.

[Explanation of symbols]

 11 Cam Member 12 Shuttle Plate 13 First Lever Member 14 Sliding Member 15 Second Lever Member 16 Magnet Mechanism 17 Dead Bolt 18 Lock Mechanism 19 Pin 20 Long Hole 21 Notch Groove 22 Locking Protrusion 23 Pin 24 Rotation Shaft 25 Slide shaft 26 Lock box 27 Hole portion 29 Locking pin 30 Long hole 31 Spring 32 Spring 33 Shaft 34 Spring 35 Pin 36 Door frame 37 Magnet 38 Roller 39 Guide roller 40 Engagement recess 41 Pin 42 Lock slide plate 43 Lock cam 43a Arm 44 Click spring 45 pin 46 oblong hole 47 pin 48 spring

Claims (2)

[Claims] 1. A cam member driven by a handle member for opening and closing a door, a shuttle plate translated by the cam member, and a first rotatably supported by a part of the shuttle plate. A lever member, a sliding member that engages with the tip of the first lever member, a second lever member that is rotatably biased by the sliding member, and a movement of the sliding member is prohibited. And a permitting magneto mechanism, a dead bolt that is moved forward and backward by a second lever member on the open / close end surface of the door, and a lock mechanism that restricts movement of the dead bolt and the shuttle member, and the dead bolt can be opened by the handle member. After retracting to the state, when the hand is released from the handle member, the spring-biased shuttle plate advances to move the first lever member, the sliding member stopped by the magnet member, and the second lever member. Dead through A lock that features complete retraction of the bolt. 2. The lock according to claim 1, wherein the cam member includes a rotation shaft and a slide shaft, and can drive the shuttle plate by both rotation and slide movement.