JP6595032B2 - Sliding door lock device - Google Patents

Description

  The present invention relates to a tubular type sliding door locking device in which a sickle member is projected forward from a sliding door by turning a handle, and a receiving member embedded in a door frame is hooked and locked.

Conventionally, when the sliding door is closed with the hook-shaped portion at the tip of the sickle member protruding, even if the tip of the sickle member collides with the receiving bracket on the door frame side, the sickling member itself and the receiving bracket are not damaged. As a locking device, what is described in patent document 1 is known.
In this locking device, the rotation of the handle for operating the locking / unlocking is transmitted as the locking / unlocking operation of the sickle member via the hub in the lock case. The hub is rotationally biased in the opposite direction by the biasing spring beyond the dead center at a predetermined rotational position between the locked position and the unlocked position. The sickle member is movably engaged with a long hole for guiding the case via a guide pin. The sickle member moves back and forth along the long hole by the rotation of the hub and protrudes from the case at a forward position. When the sickle member moves forward, the sickle member rotates upward along the curvature of the long hole and engages with the receiving bracket of the door frame. When the sliding door is closed with the sickle member protruding forward from the case, the tip of the sickle member collides with the receiving bracket, but the sickle member is pushed by this while rotating the hub in the unlocking direction. Move backward and immerse yourself in the lock case. During this time, the hub exceeds the dead point and is held in the unwinding position by the spring together with the sickle member.

Utility Model Registration No. 3091442

The conventional sliding door locking device has a drawback of increasing the manufacturing cost with a relatively complicated structure.
Therefore, the present invention provides a sliding door lock in which the tip of the sickle member does not strongly collide with the receiving bracket on the door frame side and the sickle member or the receiving bracket is not damaged even when the sliding door is closed with the sickle member protruding. An object of the present invention is to provide an inexpensive device that has a simple structure and is unlikely to fail.

Hereinafter, the present invention will be described with reference to the accompanying drawings, but the present invention is not limited thereto.
The sliding door locking device 1 of the present invention for solving the above-mentioned problems is fixed to the door frame F so as to face the lock body 2 when the sliding door D is closed and the lock body 2 fixed to the sliding door D. Receiving member 3. The lock body 2 includes a lock case 4 that is fixed to the sliding door D, a sickle member 6 that is pivotally supported by the lock case 4 with a pivot shaft 5 and is rotatable between a lower locking position and an upper unlocking position. The sickle member 6 includes a handle 7 provided so as to be rotatable together with the sickle member 6 so as to rotate the sickle member 6 between a locked position and an unlocked position. The sickle member 6 that rotates by the operation of the handle 7 can be engaged with and disengaged from the receiving member 3. The main body 2 further includes a magnet holder 11 that holds the movable magnet 12 in the lock case 4, and first and second fixed magnets 13 and 14 that are fixed in the lock case 4. The magnet holder 11 rotates between the lock position and the unlock position integrally with the handle 7 and the sickle member 6. The fixed magnets 13 and 14 are attracted to the movable magnet 12 at the locking position and the unlocking position, respectively, and hold the sickle member 6 at the locking position or the unlocking position. The handle 7 extends to the opposite side of the sickle member 6 across the pivot 5, and the sickle member 6 is always urged to rotate to the unlocked position by its own weight. When the sickle member 6 is in the locking position and the sliding door D is closed, the receiving member 3 includes a sliding slope 16b that slides the tip of the sickle member 6 and rotates it by a predetermined angle in the unlocking direction. When the sickle member 6 is rotated to a fixed angle position, the sickle member 6 is automatically rotated to the unlocked position by the weight of the handle 7 and is held by the fixed magnet 14.

  The sliding door locking device according to the present invention has a sickle member in the locking position by a simple configuration of a sliding slope on the receiving member side, rotation urging of the sickle member to the unlocked position by the weight of the handle, and holding by a magnet. Even if the sliding door is closed, the sickle member can be rotated and held in the unlocked position without impact.

It is the front view seen from the room side of the locking device for sliding doors concerning the present invention. It is the rear view which notched a part of locking device for sliding doors of FIG. It is a side view of the locking device for sliding doors of FIG. It is a top view of the locking device for sliding doors of FIG. It is VV sectional drawing of FIG. It is explanatory drawing which shows operation | movement of the locking device for sliding doors of FIG.

Embodiments of the present invention will be described with reference to the drawings.
The sliding door locking device 1 includes a lock body 2 fixed to the sliding door D and a receiving member 3 fixed to the door frame F so as to face the lock body 2 when the sliding door D is closed.

  The lock body 2 includes a lock case 4 that is fixed to the sliding door D, a sickle member 6 that is pivotally supported on the lock case 4 by a pivot shaft 5, and a handle 7 that is provided so as to be rotatable together therewith. The sickle member 6 and the handle 7 extend substantially linearly to opposite sides of the pivot 5. The sickle member 6 can be rotated 90 degrees forward and backward by operating the handle 7 between a lower locking position extending substantially horizontally and an upper unlocking position extending substantially vertically. The handle 7 always urges the sickle member 6 to rotate toward the unlocked position by its own weight. When the sickle member 6 is rotated to the locked position with the sliding door D closed, the receiving member 3 is engaged.

  A cover member 16 made of synthetic resin is fixed to the front surface (the sliding door D side) of the front plate 15 of the receiving member 3. The cover member 16 includes a slot 16a for receiving the sickle member 6 into the rear space of the front plate 15, and a sliding slope 16b that gradually protrudes downward from the lower edge of the slot 16a. The sliding slope 16b protrudes to the sliding door D side from the surface where the sliding door D hits the door frame F. When the sickle member 6 is in the locked position and the sliding door D is closed, before the sliding door D hits the door frame F, the tip of the sickle member 6 is brought into sliding contact with the sliding slope 16b and pushed up by a predetermined angle in the unlocking direction.

  On the base end side of the handle 7, a receiving portion 8 that receives the base end side of the sickle member 6 and the pivot 5 are integrally formed. The receiving part 8 is provided on the outer side of the lock case 4 and includes a receiving concave part 8a for receiving the base end side of the sickle member 6 movably in the extending direction thereof. A spring 9 for urging the sickle member 6 toward the distal end thereof is inserted into the receiving recess 8a.

  A guide pin 10 that penetrates the receiving recess 8 a is screwed to the receiving portion 8 concentrically with the pivot 5. The sickle member 6 includes a long hole 6a extending in the extending direction on the base end side, and the guide pin 10 passes through the long hole 6a. Therefore, the sickle member 6 is movable in the extending direction within the range of the long hole 6a.

  A magnet holder 11 is fixed to the pivot 5 so as to rotate in the forward and reverse directions between the locked position and the unlocked position integrally with the pivot case 5. The magnet holder 11 includes a projecting piece 11a that rotates in the forward and reverse directions between the locked position and the unlocked position integrally with the pivot 5, and extends radially outward with respect to the rotational axis. The movable magnet 12 is fixed on the protruding piece 11a.

  In the lock case 4, first and second fixed magnets 13 and 14 are fixed at rotational angle positions 90 ° apart from each other so that the magnet holder 11 is attracted to the movable magnet 12 at the locked position and the unlocked position. Is done. Therefore, the sickle member 6 is held by magnetic force in the locked position or the unlocked position.

  The operation of locking / unlocking is performed as follows. The sickle member 6 is closed in a state where the sickle member 6 stands vertically inside the sliding door D, the sliding door D is closed, the handle 7 is turned 90 ° to the horizontal position, and the sickle member 6 is engaged with the receiving member 3 and locked. In this operation, when the sickle member 6 is closed in a locked position, that is, in a state where the sickle member 6 protrudes from the sliding door D to the door frame side, the tip of the sickle member 6 is pushed up by sliding on the sliding slope 16b of the receiving member 3. The movable magnet 12 is pulled away from the fixed magnet 13. Therefore, the sickle member 6 naturally rotates until it rises to the unlocked position by its own weight, and the movable magnet 12 is attracted to and held by the fixed magnet 14. Even if the tip of the sickle member 6 collides with the sliding slope 16b of the receiving member 3, the spring 9 is retracted to the handle 6 side while being compressed, so that it is not damaged. Even if the sliding door D is closed vigorously and strongly collided with the door frame F, the attracting force of the magnets 12 and 13 and the weight of the handle 6 become resistance, so the sickle member 6 unexpectedly rotates to the locking side. There is nothing.

1 lock device 2 lock body 3 receiving member 4 lock case 5 pivot 6 sickle member 7 handle 8 receiving portion 8a receiving recess 9 spring 10 guide pin 11 magnet holder 11a protruding piece 12 movable magnet 13 first fixed magnet 14 second fixing Magnet 15 Cover member 15 Front plate 16 Cover member 16a Slot 16b Sliding slope D Sliding door F Door frame

Claims (4)

The lock case fixed to the sliding door, and the lock case is pivotally supported between a lower locking position protruding from the sliding door by the pivot and an upper unlocking position drawn to the position side of the sliding door. A lock main body comprising a sickle member and a handle provided to be rotatable integrally with the sickle member so as to rotate the sickle member between a locked position and an unlocked position;
A receiving member that is fixed to the door frame so as to face the lock body when the sliding door is closed, and the sickle member that rotates by the operation of the handle is detachable;
The lock body further includes a magnet holder that holds a movable magnet in the lock case and rotates between the handle and the sickle member between a lock position and an unlock position, and a lock position and an unlock position. Comprising first and second fixed magnets fixed in the lock case so as to be attracted to the movable magnets and hold the sickle member in a locked position or an unlocked position, respectively.
The handle extends to the opposite side of the sickle member across the pivot, and is provided so as to constantly bias the sickle member to the unlocked position side by its own weight,
When the sickle member is in the locking position where the sickle member protrudes from the sliding door and the sliding door is closed, the receiving member slides the tip of the sickle member upward and rotates it by a predetermined angle in the unlocking direction. It has a moving slope,
When the sickle member is pushed up by a predetermined angle by the sliding slope, the sickle member is provided so as to rotate to an unlocked position by its own weight and to be held by the second fixed magnet. Locking device. The handle receives the base end side of the sickle member movably from a predetermined section in its extending direction on the base end side pivotally supported by the pivot, and biases the sickle member toward the tip end thereof. A receiving recess for holding the spring;
The sliding door locking device according to claim 1 , wherein when the sickle member collides with the inclined surface of the receiving member at the locking position, the spring is compressed so that the impact of the collision is buffered. The sickle member has an elongated hole extending in the receiving recess of the handle and extending through a guide pin concentric with the pivot, and compresses the spring when it collides with the inclined surface of the receiving member at the locking position. The sliding door locking device according to claim 2, wherein the sliding door locking device is provided so that a shock of a collision is buffered.   The sickle member and the handle are provided so as to be rotatable by 90 ° about the pivot axis so that the sickle member and the handle extend substantially horizontally and linearly in the locked position and vertically extend substantially linearly in the unlocked position. The sliding door locking device according to any one of claims 1 to 3.

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