JP2003232155A - Lock construction - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock construction combined with a temporary lock func tion permitting locking and unlocking without using a key and a main locking function permitting the unlocking only when the key is used. <P>SOLUTION: This lock construction comprises an operating portion having a pushing portion up and down with a middle position journaled in a freely oscillating manner, an unlocking hook-shaped portion locking by penetrating through the overlapped position of a sliding door by start and inversion as a result of an oscillation of the operating portion arranged inside the operating portion, and a cylindrical lock blocking or permitting the oscillation of the operating portion by turning right or left with the key. Also, by oscillating, a warning indication is attached to a side surface of an operating portion which is concealed inside the main body during locking and exposed from the main body during unlocking thereby informing a state of unlocking. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock structure of a sliding door, and in particular, it combines a temporary locking function that can be locked and unlocked without using a key and a main locking function that cannot be unlocked without using a key. It has a lock structure.

[0002]

2. Description of the Related Art Conventionally, as a lock for a sliding door in a building or storeroom, a key is generally used for locking and unlocking. However, sheds are locked at night,
In the daytime, it is often troublesome to open and lock the key every time you take things in and out, so you do not have to lock them.Therefore, when the sliding door closes, it opens slightly, or things or people touch the sliding door. There were problems such as opening and opening with child's mischief or strong wind.

[0003]

Therefore, in order to solve the above problems, the present invention combines a 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 purpose is to provide a lock structure.

[0004]

In order to solve the above-mentioned problems, the invention according to claim 1 has an operating portion which has a pushing portion vertically and pivotally supports an intermediate position so as to be swingable, and the operating portion is disposed in the operating portion. When the operation part swings, the hook-shaped part is tilted to pass through the overlapping position of the sliding door to lock or stand up and unlocked, and the operation part is prevented from swinging by turning to the left or right with a key. It has a lock structure consisting of an acceptable cylinder lock.

With the above-mentioned structure, when the sliding door is frequently opened and closed, the operating portion is pushed to unlock and unlock, and when the door is not used at night or for a long period of time, the key can be locked. Further, the invention of claim 2 prevents forgetting to lock by providing a warning display indicating that the lock is hidden on the side surface of the operation unit exposed from the main body when unlocked by being hidden in the main body when locking by locking. . Claim 3
As in the invention described above, the operating portion protruding at the time of unlocking can be used as a handle for opening and closing the sliding door.

[0006]

BEST MODE FOR CARRYING OUT 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 in an overlapping portion of the sliding doors D1 and D2. The lock A is a main body 1 fitted in a front sliding door D2, and an operation pivotably supported by the main body 1. Part 2 and hook-shaped part 3 arranged in the operating part
And a cylinder lock S that is inserted and turned at the top of the main body 1.
It is composed of. The lock A in this figure is in the unlocked state.

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 has a main body 1 in which an operating portion 2 and a cylinder lock S are incorporated and which is a front sliding door D2.
It is fitted into the elliptical hole h2 formed in the above, the covering member 4 is covered from the inside of the sliding door D2, and the sliding door D2 is sandwiched between the main body 1 and the covering member 4 and fixed with the set screw 5. Hook-shaped part 3 of the lock on the sliding door D1
A square hole h1 is formed at a position corresponding to.

FIG. 3 is an exploded perspective view showing the lock A in a disassembled state. The lock A is roughly divided into a main body 1, an operating portion 2, a hook-shaped portion 3, a pad 4 and a cylinder lock S. The cylinder lock S has a locking metal fitting S1 which rotates together with a key inserted therein and is rotated at the rear end thereof, and the locking metal fitting S1 has a protruding piece S2 protruding in one direction. Body 1
Has the cylinder lock S arranged at the upper part, a vertically elongated insertion recess 1a is formed under the cylinder lock S, and a flange part 1j is formed at the front peripheral edge. The insertion concave portion 1a has an opening 1c extending from the upper surface to the rear surface, a leaf spring supporting portion 1g is provided in the concave portion, a screw hole 1d is provided at the rear surface, and a shaft hole 1 is provided at a vertical position of the left and right side walls 1f.
It forms h and 1i.

The operating portion 2 has a shape to be fitted in the insertion concave portion 1a of the main body 1 and has a space portion on the back surface for arranging the hook-shaped portion 3. The front wall 2m of the operation unit 2
The pushing portions 2n, 2n having slight recesses are provided at the upper and lower positions of the upper wall 2k, the upper wall 2k has a hooking piece 2l at the rear end thereof, and the left and right side walls 2b have a hypotenuse portion 2c formed by notching the lower back portion thereof. Shaft holes 2e and 2j are provided at the upper and lower positions, and a groove 2d is formed below the shaft hole 2e from the rear end of the left and right side walls 2b to the central position. The shaft P3 is inserted from the shaft hole 1i of the main body 1 into the shaft hole 2j, and the operating portion 2 is swingably supported in the insertion recess 1a of the main body 1. Further, the left and right side walls 2b and the upper wall 2k are colored with a conspicuous color paint, fluorescent paint, night paint or the like to provide a warning display for notifying the unlocked state described later.

The hook-shaped portion 3 has a V-shaped cross section, and shaft holes 3d and 3a are provided at the middle portion and the lower end portion thereof to form a hook piece 3c. The hook-shaped portion 3 is placed in the rear space portion of the operation portion 2. The shaft P1 is arranged and inserted into the shaft hole 3d from the shaft hole 2e so as to be swingably supported in the operating portion 2 about the shaft P1, and both ends of the shaft P2 inserted in the shaft hole 3a are slid in the groove 2d. It is made possible and further inserted into the shaft hole 1h of the main body 1.

The lower end of the hook 3 and the insertion recess 1a of the main body 1
A curved leaf spring B is attached between the leaf spring support portions 3b and 1g provided inside to control the swing of the hook portion 3 and the operating portion 2.
The material 4 has a shape in which the rear portion of the main body 1 and the cylinder lock S are accommodated, a flange portion 4a is formed on the front peripheral edge, and a square hole 4c and a cylinder for allowing the hook piece 3c of the hook-shaped portion 3 to project and retract on the back surface. Opening hole 4 for attaching the lock fitting S1 of the lock S
An insertion hole 4d for the b and the set screw 5 is formed.

FIG. 4 is a vertical sectional view showing that the sliding doors D1 and D2 are temporarily locked with the lock A. 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 provided with the flange parts 1j and 4a. It is sandwiched between and fixed with the set screw 5. The hook-shaped part 3 falls and the hook piece 3c
Is projected from the opening 1c of the main body 1 and the square hole 4c of the member 4 and hooks the tip thereof into the square hole h1 of the sliding door D1, so that the sliding doors D1 and D2 cannot be opened and closed. At this time, the leaf spring B
Supports the hook-shaped portion 3 in the clockwise direction in the drawing with respect to the axis P2 to prevent the temporarily locked state from being released.

FIG. 5 is a vertical sectional view showing the unlocked state of the lock A. By pushing the pushing portion 2n formed below the front wall 2m of the operating portion 2, the operating portion 2 is moved within the main body 1 by the axis P3.
Is rotated counterclockwise in the drawing, and the hypotenuse portion 2c contacts the back wall of the main body, and the upper part is projected from the main body 1 on the contrary. Since the hook-shaped portion 3 is pivotally supported on the main body 1 by the axis P2 and pivotally supported on the operating portion 2 by the shaft P1, the operating portion 2 rotates about the axis P2 counterclockwise in the drawing to get 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.

As described in "0009", since the peripheral wall of the operation portion 2 is colored with a noticeable color as a warning display, the portion exposed from the main body 1 can be clearly seen and can be confirmed as unlocked. . Further, the main body 1 of the operation unit 2
The part protruding from can also be used as a handle for opening and closing the sliding door. At this time, the leaf spring B assists the hook-shaped portion 3 in the counterclockwise direction with respect to the axis P2 to prevent it from returning to the temporarily locked state of FIG. It can be easily locked by pressing.

FIG. 6 is a vertical cross-sectional view showing the state of the lock of the lock A. When the key K is inserted into the cylinder lock S in the temporarily locked state of FIG. 4 and turned, the locking metal fitting S1 at the rear end of the cylinder lock S turns and the protruding piece S2 facing sideways is directed downward. Even if the lower pushing portion 2n is pushed, the hooking piece 2l at the upper end of the operating portion 2 hits the projecting piece S2, the operating portion 2 cannot rotate, and the hook-shaped portion 3 is not unlocked.

FIG. 7 is a perspective view showing a state in which the lock A of the present invention is attached to the assembly table F having the sliding doors D1 and D2.

[0017]

EFFECTS OF THE INVENTION Since the locking / unlocking can be performed by pushing the operation part pivotally supported, the recoil when the sliding door is frequently opened / closed without using the key for locking / unlocking. The sliding door opens, or things or people come in contact with the sliding door,
You can prevent the child from opening by the mischief or strong wind. It is also safe because it can be locked with a key at night or when not in use for a long time.

Further, the peripheral wall of the operating portion is colored with a conspicuous color paint, fluorescent paint, or night paint, and the part exposed from the main body is clearly visible when unlocked, but can be locked. It can be confirmed that it is not locked, and it will prevent forgetting to lock. Further, the protruding operation section can be used as a handle for opening and closing the sliding door.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a 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.

FIG. 3 is an exploded perspective view showing a disassembled state of the lock.

FIG. 4 is a vertical sectional view showing a state of temporary locking.

FIG. 5 is a vertical sectional view showing an unlocked state.

FIG. 6 is a vertical cross-sectional view showing the locked state

FIG. 7 is a perspective view of the assembly holder with a lock attached.

[Explanation of symbols]

A ... Lock S ... Cylinder lock D1, D2 ... Sliding door 1 ... Main body 2 ... Operation part 3 ... Hook type part 4 ... this material

Claims (3)

[Claims] 1. A lock structure having a combination of a temporary locking function that can be locked and unlocked without using a key and a main locking function that cannot be unlocked without using a key. An operation part that is rotatably supported, and a hook-shaped part that is arranged inside the operation part and is tilted by the operation part swinging to pass through the overlapping position of the sliding door to lock or stand up and unlock. A lock structure consisting of a cylinder lock that prevents or allows the swinging of the operating portion by turning it left and right with a key. 2. A warning display is provided on the side surface of the operating portion, which is hidden in the main body when locked by swinging and exposed from the main body when unlocked, to show that it is not locked. Lock structure. 3. An operating portion which is hidden in the main body when locking by swinging and protrudes from the main body when unlocking, wherein the operating portion which protrudes during unlocking is used as a handle for opening and closing a sliding door. The lock structure according to Item 1 or 2.