JPS63103177A - Lock device for sliding door - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a locking device called a Talent lock (trade name) particularly applied to sliding doors.

<Prior art> Conventionally, locking devices for sliding doors have been equipped with a fixed hook on one sliding door and a movable hook that engages and disconnects from the fixed hook on the corresponding other sliding door. By stopping the differential door in the closed position and rotating the movable hook forward and backward, both hooks engage and disengage, locking and unlocking.

<Problems to be Solved by the Invention> In the above-mentioned conventional locking device, a protrusion that rotates together with the hook is usually provided on the rotation axis of the movable foot as a locking mechanism that restricts the rotation of the movable hook. On the other hand, a sliding stopper is provided on the mounting base, and the movable hook is fixed or released by restricting the □ rotation of the protruding piece.

However, in the case of such a lock device, there are many accidents in which a person breaks the window glass near the lock, inserts a hand through the window, unlocks the movable hook, and breaks into the device from the outside. The above problem can be solved by incorporating a key-operated locking mechanism into the movable hook.

However, when a key-operated locking mechanism is incorporated, especially since this type of locking device is installed in each sliding door of each window opening in a building, if the key for each locking device is a common key, it will not be possible to use other same locking devices. The lock can be unlocked using the key on the device, and if different keys are used for each lock device, the lock will change for each window, resulting in an increase in the number of keys and troublesome storage.

Therefore, this invention solves the above problems all at once by applying a code lock to the locking mechanism of the movable hook.
An object of the present invention is to provide a new locking device for a sliding door that can improve the performance and usability of the locking device.

<Means for Solving the Problems> To explain in detail the present invention to achieve the above object, the present invention provides a fixing hook attached to one sliding door and a corresponding A locking device comprising a movable hook that is attached to and detaches from the fixed hook, the movable hook having its proximal end pivotably fixed to the lock case, and having a locking notch on the side surface. In addition, the lock case has a sliding operating lever for rotating the movable hook forward and backward, and a code lock having an operating shaft that engages and disengages from the notch of the movable hook.

Function> When the movable hook is engaged with the fixed hook, the operating shaft of the code lock is engaged with the notch of the movable hook, and at this time, by locking the code lock, the operating shaft does not move back. , so that the fixed hook and the movable hook are kept locked. After setting the code lock to the unlock code, by sliding the lever, the movable hook separates from the fixed hook while retracting the operating shaft of the code lock, and unlocks the lock.

<Embodiment> The drawing shows a locking device for a sliding door according to an embodiment of the present invention.

This invention includes a fixed hook 2 attached to one sliding door 1a, and a fixed hook 2 attached to the other corresponding sliding door 1b,
The locking device includes a movable hook 3 that engages and disengages from the fixed hook 2, and the movable hook 3 has its base end rotatably fixed to the lock case 4, and has a locking notch 34 on the side surface. In addition, the lock case 4 includes a swinging or sliding operating lever 5 for rotating the movable hook 3 forward and backward, and a code lock 6 having an operating shaft that engages and disengages from the notch of the movable hook 3.
It is made by connecting.

The lock case 4 is fixed to the frame of the sliding door 1b with screws using its bottom plate 41 as a frame, and an upper shaft 42 is provided inside to rotatably support the base end of the movable hook 3. The movable hook 3 projects from and disappears from a window hole 44 formed in a side wall 43 of the case, and engages and disengages from the fixed hook 2.

The movable hook 3 is a press molded or cast molded body of a metal plate, and has a pivot part 32 at one end of a hook base plate 31, and a pivot part 32 at the other end bent to the fixed hook 2. A rising wall 33 that engages and disengages is formed. A lock notch 34 is formed on the side of the hook base plate 31 to correspond to the code lock 6 when the fixed hook 2 and the rising wall 33 are engaged.
A cylindrical body 35 surrounding the upper shaft 42 is integrally attached to the pivot portion 32, and a binion gear 36 is formed on the outer peripheral surface thereof, and is linked to the operating lever 5.

The operating lever 5 is provided vertically penetrating the lock case 4, and has operating pieces 51 and 52 formed at both upper and lower ends and a rank gear 53 on the side, which meshes with the binion gear 36. By lowering or raising the movable hook 3, the movable hook 3 rotates via the rank gear 53 and the pinion gear 36, and engages and disengages from the fixed hook 2.

The code lock 6 is provided at the end of the lock case 4 corresponding to the proximal end of the movable hook 3, and includes a housing 61 with a plurality of notched windows 62, and a housing 61 that is slidable into the housing 61 and is provided on the side surface of the shaft. An operating shaft 7 having a plurality of protrusions 71 is rotatably supported on the operating shaft 7 in correspondence with the notched window 62, and when the protrusions 71 and the engagement grooves 81 correspond, the operating shaft 7 slides. The movable hook 3 is composed of a plurality of dials 8 and a spring 72 that biases the operating shaft 7 against the base end of the movable hook 3.

On the outer periphery of the dial 8, symbols 82 such as 1, 2, 3, etc. are shown, and a part thereof protrudes from the cutout window 62, and a recess 83 is formed between adjacent symbols 82, while the housing 61
A spring ball (not shown) that engages and disengages from the recess 83 is provided inside to regulate the code position of each dial 8.

The code lock 6 is provided with a mechanism for freely setting the unlock code 82 of each dial 8.

The mechanism includes a bearing bush 84 that is removable from each dial 8.
A protrusion 85 and a groove 86 are formed between the dial 8 and the bearing hole of the bushing 84 in accordance with the number 82 on the outer periphery of the dial, and the end surfaces of the adjacent bushings 84 are brought into contact with each other. 87 to engage and energize each into the dial 8. On the other hand, a hole 63 into which a protruding rod is inserted is formed in the housing 61 in correspondence with the operating shaft 7, and a bush 84 is pressurized inside the hole 63. A pressure member 88 is provided.

When the locking device of the present invention is attached to a sliding door and the movable hook 3 is in the unlocked position relative to the fixed hook 2, the movable hook 3 is retracted into the lock case 4 and the locking notch 34 is aligned with the operating shaft 7. At this time, the operating shaft 7 is separated from the protrusion 7.
1 engages with each engagement groove 81 to stop the rotation of the dial 8.

When sliding the operating lever 5 to lock the sliding door, the movable hook 3 is rotated by the rank gear 53 and pinion gear 36, and engages with the corresponding fixed hook 2, and also engages with the notch 34 at the hook base end. corresponds to the operating shaft 7 and allows the engagement of the operating shaft 7, and the protrusion 71 fits into the engagement groove 8.
It has escaped from 1. At this time, by rotating each dial 8 so that the numbers 82 are arranged irregularly, the actuating shaft 7 is prevented from retreating, and the fixed hook 2 and movable hook 3 are thereby maintained in a locked state.

When unlocking, the codes 82 of each dial 8 are arranged in the order of setting. At this time, the retaining groove 81 of the dial 8 corresponds to the protrusion 71 of the operating shaft 7.

Next, when the lever 5 is slid in the opposite direction, the movable hook 3 is rotated in the opposite direction by the rank gear 53 and the pinion gear 36, and is detached from the fixed hook 2.
is pressurized by the base end of the movable hook 30 and escapes from the notch 34, and the protrusion 71 is positioned again in the engagement groove 81 to return to the original unlocked state.

In addition, when changing the unlocking alignment code 82, first align the codes in the previously set code order and make each engagement groove 81 correspond to the protrusion 71, and then insert a push rod through the hole 63 of the housing 61 to When pressurizing the pressure member 88, the bushes 84 of each dial 8 compress the spring 87 and escape from the respective dials 8, and the protrusions 85 and grooves 86 come off. At this time, the dials 8 can be turned to unlock. A new code 82 to be used is set. After that, the pressure of the pressure member 88 is released. As a result, each bushing 84 engages with the bearing hole of the dial 8 again by the elasticity of the spring 87, and the setting of the new unlocking code 82 is completed.

<Effects of the Invention> As described above, the present invention provides a locking device comprising a fixed hook attached to one sliding door and a movable hook attached to the other corresponding sliding door and engaged with and detached from the fixed hook. The movable hook has its proximal end rotatably fixed to the lock case, and has a locking notch formed on the side surface, and the lock case has a sliding operating lever and a movable lever for rotating the movable hook in the forward and reverse directions. Since the code lock has an operating shaft that engages and disengages from the notch of the vine, the code lock has an operating shaft that engages and disengages from the notch of the lid.When the movable hook is engaged with the fixed hook, the code lock's operating shaft engages with the notch of the movable hook. At this time, by locking the code lock, the actuating shaft does not move back, and the fixed hook and movable hook are kept locked. After setting the code lock to the unlock code, by sliding the lever, the movable hook is released from the fixed hook while retracting the operating shaft of the code lock, and the lock is unlocked.The structure is simplified and the purpose of the invention is achieved. It has the effect of

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the installation of a locking device according to an embodiment of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a cross-sectional view taken along line mm in FIG. 2. 4 is a sectional view taken along line IV-rV in FIG. 1, and FIG. 5 is an enlarged sectional view taken along line V-V in FIG. 4. la, lb...Sliding door 2...Fixed hook 3...Movable hook 34
...Lock notch 5...Operation lever 6...When code locking is enabled
Applicant: Clover Co., Ltd.-Eif+y4L'
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Claims (3)

[Claims] (1) A locking device consisting of a fixed hook attached to one sliding door and a movable hook disposed on the corresponding other sliding door and connected to and detached from the fixed hook, the movable hook being attached to the base end thereof. is rotatably fixed to the lock case, and a lock notch is formed on the side, and the lock case has a sliding operating lever that rotates the movable hook forward and backward, and a lock that engages and disengages from the notch of the movable hook. A locking device for a sliding door consisting of a code lock with an operating axis that is connected and arranged. (2) A code lock consists of a housing that is provided at the end of the lock case and has multiple cutout windows corresponding to the base end of the movable hook, and a housing that is slidable into the housing and has multiple protrusions on the side of the shaft. a plurality of dials that are freely rotatably supported on the operating shaft in correspondence with the notched windows and allow the operating shaft to slide when the protrusions and engagement grooves correspond, and a movable hook for the operating shaft. A locking device for a sliding door according to claim 1, comprising a spring biased toward the side. (3) The locking device for a sliding door according to claim 1, wherein each dial is provided with a bush for changing the unlocking code.