JP3621923B2 - Lock structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lock structure of a sliding door, and in particular, is a lock structure that combines a temporary locking function that can be locked and unlocked without using a key and a present locking function that cannot be unlocked without using a key.
[0002]
[Prior art]
Conventionally, as a lock for a sliding door of a building or a storeroom, it has been common to use a key to lock or unlock. However, the storeroom is locked at night, but it is often troublesome to open and lock the key every time an item is taken in and out, and it is often not locked. There are problems such as opening to the door, objects and people opening in contact with the sliding doors, mischief and strong winds of children.
[0003]
[Problems to be solved by the invention]
Therefore, in order to solve the above problems, the present invention has an object to provide a lock structure that combines a temporary locking function that can be locked and unlocked without using a key and a present locking function that can be unlocked without using a key. And
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention of claim 1 is arranged such that the hook portion is accommodated in the upper part of the back space portion of the operation portion, and the operation portion is inserted into the insertion recess of the lock body and the front surface of the lock body and the operation portion. The front surface is stored and arranged so as to be substantially flush with the temporary and final locked states, and the lower end of the hook portion is pivotally supported on the lock body so as to be able to swing at a predetermined angle, and the direction of the load is determined by the swing of the predetermined angle as a boundary. The structure is such that it is biased by a spring so as to be switched, and the center of the saddle-shaped portion is pivotally supported by the operating portion so as to be swingable by a predetermined angle, and the center of the operating portion is pivotally supported by the lock body so as to be swingable by a predetermined angle.
By doing so, the hook portion is raised and lowered by the swinging of the operation portion, and the hook piece formed at the tip of the hook portion is projected and retracted from the back surface of the lock main body to be temporarily locked or unlocked. In addition, a cylinder lock disposed at the upper part of the lock body prevents the operation portion from swinging, and this lock state is obtained.
[0005]
By configuring as described above, when the sliding door is frequently opened and closed, it can be locked and unlocked by pressing the operation unit, and when it is not used at night or for a long time, it can be locked with a key.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a lock A provided at an overlapping portion of the sliding doors D1 and D2, and the lock A is a main body 1 fitted into the front sliding door D2 and an operation pivotally supported by the main body 1 A part 2, a saddle part 3 disposed in the operation part, and a cylinder lock S that is inserted and rotated at the upper part of the main body 1. The lock A in this figure is in an unlocked state.
[0007]
FIG. 2 is a perspective view showing a state in which the lock A is removed from the sliding doors D1 and D2, and the lock A is an oblong hole h2 in which the main body 1 incorporating the operation portion 2 and the cylinder lock S is formed in the front sliding door D2. And the material 4 is covered from the inside of the sliding door D2 and fixed with the set screw 5 in a state where the sliding door D2 is sandwiched between the main body 1 and the material 4. In the sliding door D1, a square hole h1 is formed at a position corresponding to the hook-shaped portion 3 of the lock.
[0008]
FIG. 3 is an exploded perspective view showing the lock A in an exploded manner. The lock A is roughly divided into a main body 1, an operation part 2, a hook part 3, a material 4 and a cylinder lock S. The cylinder lock S has a locking fitting S1 that rotates together by inserting a key and turning it at the rear end, and the locking fitting S1 has a protruding piece S2 protruding in one direction.
In the main body 1, the cylinder lock S is disposed at the upper portion, a vertically long insertion recess 1a is formed below the cylinder lock S, and a flange portion 1j is formed at the front peripheral edge. The insertion recess 1a has an opening 1c extending from the top surface to the back surface, a leaf spring support portion 1g is provided in the recess, a screw hole 1d is formed on the back surface, and shaft holes 1h and 1i are formed at the vertical positions of the left and right side walls 1f.
[0009]
The operation portion 2 has a shape that fits into the insertion recess 1a of the main body 1, and a space portion for arranging the saddle-shaped portion 3 is formed on the back surface. In addition, push portions 2n and 2n each having a slightly recessed portion are provided at the upper and lower positions of the front wall 2m of the operation portion 2, the upper wall 2k is formed with a latching piece 21 at the rear end, and the left and right side walls 2b are notched at the lower rear portion. In addition, the oblique side 2c is formed, and shaft holes 2e and 2j are provided at the upper and lower positions, and a groove 2d is formed from the rear end of the left and right side walls 2b to the central position below the shaft hole 2e. The shaft P3 is inserted into the shaft hole 2j from the shaft hole 1i of the main body 1, and the operating portion 2 is pivotally supported in the insertion recess 1a of the main body 1. In addition, the left and right side walls 2b and the upper wall 2k are colored with a conspicuous color paint, a fluorescent paint, a nocturnal paint or the like, and a warning display is given to notify that the unlocked state will be described later.
[0010]
The saddle-shaped portion 3 has a square cross section, shaft holes 3d and 3a are provided at the middle and lower end portions, and a collar piece 3c is formed at the tip, and the saddle-shaped portion 3 is disposed in the back space portion of the operation portion 2. The shaft P1 is inserted into the shaft hole 3d from the shaft hole 2e, is pivotally supported in the operating portion 2 around the shaft P1, and both ends of the shaft P2 inserted into the shaft hole 3a are slidable in the groove 2d. Further, it is inserted into the shaft hole 1 h of the main body 1.
[0011]
A curved leaf spring B is attached between the lower end portion of the saddle portion 3 and the leaf spring support portions 3b and 1g provided in the insertion recess 1a of the main body 1 to control swinging of the saddle portion 3 and the operation portion 2.
The material 4 has a shape in which the rear portion of the main body 1 and the cylinder lock S can be accommodated, a flange portion 4a is formed on the peripheral edge of the front surface, and a square hole 4c and a cylinder for protruding and retracting the flange piece 3c of the hook-shaped portion 3 on the back surface. An opening 4b for attaching the lock fitting S1 of the lock S and an insertion hole 4d for the set screw 5 are formed.
[0012]
FIG. 4 is a longitudinal sectional view showing that the sliding doors D1 and D2 are temporarily locked with the lock A. FIG. In the lock A, the cylinder lock S is arranged on the upper part of the main body 1, and the operation part 2 pivotally supported by the shaft P3 is almost entirely accommodated in the main body 1, and the plate material of the sliding door D2 is connected to the flange parts 1j and 4a. And fixed with a set screw 5. The saddle-shaped part 3 is tilted and the hook piece 3c protrudes from the opening 1c of the main body 1 and the square hole 4c of the material 4 and is hooked at the tip of the square hole h1 of the sliding door D1, so that the sliding doors D1 and D2 can be opened and closed. It becomes impossible. At this time, the leaf spring B assists the hook 3 in the clockwise direction in the drawing with respect to the axis P2 to prevent the temporarily locked state from being released.
[0013]
FIG. 5 is a longitudinal sectional view showing a state where the lock A is unlocked. By pushing a pushing portion 2n formed below the front wall 2m of the operation portion 2, the operation portion 2 rotates in the main body 1 around the axis P3 counterclockwise in the drawing, and the hypotenuse portion 2c contacts the back wall of the main body. On the contrary, the upper part protrudes from the main body 1. Here, the hook portion 3 is pivotally supported by the main body 1 by the axis P2 and is pivotally supported by the operation portion 2 by the axis P1, and therefore, the rotation of the operation portion 2 causes the shaft P2 to rotate counterclockwise on the drawing and rise up. The sliding doors D1 and D2 can be opened and closed because they are separated from the opening 1c, the square hole 4c, and the square hole h1.
[0014]
As described in “0009”, since the peripheral wall of the operation unit 2 is colored with a conspicuous color as a warning display, it can be confirmed that the portion exposed from the main body 1 is clearly visible and is not locked. Moreover, the part which protruded from the main body 1 of the operation part 2 can also be utilized as a handle part for sliding door opening and closing.
At this time, the leaf spring B assists the saddle-shaped portion 3 in the counterclockwise direction with respect to the axis P2 to prevent the temporary locking shown in FIG. By simply pressing, you can easily make a temporary lock.
[0015]
FIG. 6 is a longitudinal sectional view showing a state of the lock of the lock A. In the state of temporary locking shown in FIG. 4, when the key K is inserted into the cylinder lock S and turned, the locking piece S1 at the rear end of the cylinder lock S turns and the protruding piece S2 facing sideways faces downward. Even if the lower pressing portion 2n is pressed, the latching piece 2l at the upper end of the operating portion 2 hits the protruding piece S2, the operating portion 2 cannot be rotated, and the hook portion 3 is not unlocked.
[0016]
FIG. 7 is a perspective view showing a state in which the lock A of the present invention is attached to the assembly unit F having the sliding doors D1 and D2.
[0017]
【The invention's effect】
Locking and unlocking can be done by pushing the pivoted operation part, so when you frequently open and close the sliding door, you can open the sliding door with a closed recoil without having to use the key to lock and unlock each time. It is possible to prevent an object or a person from opening in contact with a sliding door, or a child's mischief or strong wind. Also, when it is not used at night or for long periods of time, it can be safely locked using a key.
[0018]
In addition, if a force is applied to the operating portion to swing the saddle member to a predetermined angle, the spring will then swing to the final position by the action of the spring, so even if the operation is insufficient, temporary locking and unlocking will not be possible. There is no problem of stopping.
[Brief description of the drawings]
1 is a perspective view showing a state in which the lock of the present invention is attached to a sliding door. FIG. 2 is a perspective view showing a state in which the lock is removed from the sliding door in FIG. 1. FIG. 3 is an exploded perspective view showing an exploded state of the lock. Fig. 4 is a longitudinal sectional view showing a state of temporary locking. Fig. 5 is a longitudinal sectional view showing a state of unlocking. Fig. 6 is a longitudinal sectional view showing a state of the locking. Fig. 7 is an assembly view with a lock attached. Perspective view [Explanation of symbols]
A ... Lock S ... Cylinder lock D1, D2 ... Sliding door 1 ... Main body 2 ... Operation part 3 ... Scissor part 4 ... This material

Claims (1)

It is a lock structure that combines the temporary locking function that can be locked and unlocked without using a key and the present locking function that cannot be unlocked without using a key . The operation part is housed in the insertion recess of the lock body so that the front face of the lock body and the front face of the operation part are substantially flush with each other in the temporary and final locked state, and the lower end of the hook portion is at a predetermined angle with respect to the lock body. It is pivotally supported and urged by a spring so that the direction of the load is switched at the predetermined angle of swing, and the center of the saddle-shaped portion is pivotally supported by the operating portion so that it can swing at a predetermined angle. By pivotally supporting the center of the lock to the lock body so that it can swing at a predetermined angle, the hook part is raised and lowered by the swing of the operation part, and the hook piece formed at the tip of the hook part appears and disappears from the back of the lock body. Then, the operation part is swung by a cylinder lock placed at the top of the lock body. Blocking or lock device, characterized in that the tolerated.

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