JP2004092277A - Locking structure of sliding door - Google Patents

Abstract

An object of the present invention is to lock and unlock a temporary lock with an article or elbow held by a hand and to open and close a sliding door so that the user can easily operate the product even if the user holds the article with both hands or is handicapped. To provide a locking structure for a sliding door of a prefabricated building or storeroom.
An operating part in which a temporary lock locking push part and a temporary lock unlocking push part are swingable alternately in the front-rear direction, and the front-rear swing of the operating part is changed to the left-right swing to hook. A link for moving the link, a hook for the hook tip to protrude and retract from the door end and engage with and disengage from the locking hole of the door stop, a guide case for supporting the link and the key, and a key. A cylinder lock capable of preventing swinging of the operation unit by turning the operation unit, a casing in which the operation unit, the guide case, the link, the hook, and the cylinder lock are disposed, and an inner cover for fixing the casing to the sliding door It consisted of:
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a lock structure of a sliding door, and more specifically, it is possible to perform temporary locking and unlocking without using a key by pressing with a fingertip, an elbow, an article held in a hand, or the like. The present invention relates to a lock structure, such as a prefabricated building or a storeroom, capable of unlocking a lock and also real locking using a key.
[0002]
[Prior art]
Conventionally, the locking and unlocking of a sliding door of a prefabricated building or storeroom is usually performed with a key.However, recently, the locking portion of the sliding door is hooked to the door stop without using a key and is temporarily locked. I often see things. However, these methods have a problem in that the temporary lock cannot be unlocked unless the operation unit is turned with the fingertip or the lever is pinched, so that a person holding the item with both hands or a handicap cannot operate.
[0003]
[Problems to be solved by the invention]
In order to solve the above-mentioned problem, the present invention is to lock and unlock a temporary lock on an article or an elbow held by a hand so that the user can easily operate the product while holding the article with both hands or a person who has difficulty with the hand. Anyone can use fairly and freely, regardless of age, gender, individuality, situation, etc., which is generally called `` universal design '', such as opening and closing the sliding door, making it easy to understand how to use, An object of the present invention is to provide a lock structure that can be used safely without difficulty.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention of claim 1 comprises an operation unit which is capable of swinging a temporary lock locking push unit and a temporary lock unlock push unit alternately in the front-rear direction, and a box-like body having left and right side surfaces opened. A guide case having two parallel guide holes extending in the left-right direction and one fulcrum shaft hole on one of its upper and lower surfaces, and one of the guide holes being bent. A link that moves the hook by changing the swing to the left and right, and a hook that protrudes and retracts from the door end and engages and disengages with the locking hole of the door stop using two shafts in the guide hole of the guide case. A hook portion pivotally supported in the direction, a cylinder lock that prevents the operation portion from swinging by inserting and turning a key, and a casing in which the operation portion, the guide case, the link, the hook portion, and the cylinder lock are arranged. Structure consisting of an inner cover that fixes the casing to the sliding door It was.
[0005]
With this configuration, the temporary lock can be locked and unlocked simply by pressing the temporary lock / lock release section or the temporary lock / release release section of the operation section. However, it is possible to easily lock and unlock the temporary lock. Further, when the sliding door is open, the tip of the hook is hidden inside the door, so that the clothes and the body do not get caught. In addition, it is also possible to perform the main locking with a cylinder lock using a key.
[0006]
According to a second aspect of the present invention, the swing shaft of the swing unit is fixed to the casing by pulling a connecting shaft between the swing unit supported on the casing by a fulcrum shaft and the operating unit by a tension spring and by interposing the fulcrum shaft therebetween. In the above, the tension spring swings back and forth with respect to the fulcrum axis of the rocker, and the rocker swings to the front and rear pole positions of the swing range by the pulling force of the tension spring. And it is configured to always be in either the temporary locked state or the temporary unlocked state. With this configuration, the temporary lock can be securely locked or unlocked even when the operation of the operation unit is insufficient or incomplete.
[0007]
According to a third aspect of the present invention, there is provided a temporary lock release lever extending up and down on the rear surface of the casing as a closing prevention means for operating the operation unit in the temporary lock locked state from the rear side of the sliding door to bring the temporary lock to the unlocked state. By vertically projecting and forming a protruding piece inside the temporary lock locking push part of the operation unit, the temporary lock unlocking lever swings by a natural operation to open the sliding door and the end thereof is The protruding piece is configured to be pushed forward to swing the operation unit to a temporary unlocked state. With this configuration, even if a person enters the inside of the prefabricated building or the storage, and the temporary lock of the sliding door is locked, and the interior is dark or the closing prevention means is not recognized, the sliding door will be opened. The temporary lock can be unlocked by the movement of the hand to open the sliding door easily.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an overall perspective view showing a lock device B attached to an end of a sliding door A. The operation unit 2 disposed in the front recess of the casing 1 of the lock device B has a substantially elliptical shape in plan view, and includes a temporary lock locking push unit 21 on the front left side and a concave curved surface of the temporary lock release push unit 22 on the front right side. It is formed, and both push parts swing back and forth alternately like a seesaw. When the temporary lock locking push portion 21 is pressed, the tip of the hook portion 3 protrudes and swings from the left side surface of the casing 1 and engages with the engaging hole of the door stop (not shown), so that the sliding door A is in the temporary lock locked state, When the temporary lock release push portion 22 is pressed, the tip of the hook 3 is pulled into the casing 1 and the sliding door A is unlocked. The casing 1 incorporates a cylinder lock 4 that locks the operation unit 2 using a key 41 to prevent the operation unit 2 from swinging. A1 in the figure is a handle for opening and closing the sliding door A.
[0009]
FIG. 2 is an exploded perspective view showing the lock device B in an exploded manner. The casing 1 has a concave portion 11 in which the operation portion 2 fits in the front surface and a lock hole 12 in which the cylinder lock 4 fits, and is inserted from the door front side into a mounting hole A2 formed near the end of the sliding door A, and the front surface of the casing 1 is inserted. It is supported by the flange portion 13 over the entire circumference, and the inner door 7 is covered from the back of the sliding door A and fixed.
[0010]
The operating section 2 is fitted into the concave portion 11 of the casing 1, and supports the center vertically with respect to the casing 1. The hook 3 is rotatably supported in the guide case 6 so as to be slidable in the left-right direction, and is fixed to the rear surface of the casing 1 together with the guide cover 61. The cylinder lock 4 is fitted into the lock hole 12 of the casing 1 and fixed to the casing 1 with a screw, and a tongue piece 42 which is rotated by operating the key 41 is screwed to the rear end. The link 5 is connected to the hook 3 pivotally supported by the guide case 6 and the operation unit 2 pivotally supported by the casing 1, respectively, and pivotally supported in the guide case 6.
[0011]
The rocker 8 is pivotally supported on the fulcrum shaft on the right side in the concave portion 11 of the casing 1 and a tension spring 81 is mounted on another shaft connected to the right inner wall of the operation section 2 to pull the fulcrum shaft therebetween. The other end of the spring 81 is fixed to the casing. The temporary lock release lever 9 is disposed on the rear surface of the casing 1 such that the right end thereof abuts on a projecting piece 23 (see FIG. 4) formed on the rear surface of the temporary lock locking push portion 21 of the operation unit 2 when swinging rightward. To be supported vertically.
[0012]
FIG. 3 is a perspective view of the casing 1. A concave portion 11 for fitting the operation portion 2 and a lock hole 12 for fitting a cylinder lock are formed on the front surface, and a flange portion 13 for fixing to the sliding door A is formed on the front edge portion. A pair of operating portion bearings 14 having a pair of shaft holes and stoppers for shaft support, a pair of oscillator bearings 15 for supporting the oscillator 8, a spring retaining portion 16 for fixing a tension spring 81, and a temporary lock release lever 9 are formed as a pair of lever bearings 17 that support the shaft 9. A shaft hole 18 for supporting the operation unit 2 is formed on the upper and lower surfaces of the peripheral wall, and a screw hole 19 for fixing the cylinder lock 4 and a tongue piece 42 are rotated on the upper surface of the peripheral wall facing the lock hole 12. The notch 111 is formed, and a notch 112 for the hook 3 to protrude and retract is formed on the left side surface of the peripheral wall.
[0013]
FIG. 4 is a perspective view of the operation unit 2 as viewed from the rear side. The above-mentioned pair of projections 23 are formed on the back surface of the temporary lock locking push portion 21, and the outer side surface of the temporary lock lock push portion 21 is formed between the upper plate 51 and the lower plate 52 of the link 5 (see FIG. 5). A link connecting groove 25 to be inserted and connected to the connecting shaft 53 and a tongue engaging piece 26 to be engaged with the tongue 42 of the cylinder lock 4 are formed on the upper part thereof. A pair of oscillator connecting portions 24 are formed in which the front and rear pieces supporting the connecting shaft of the moving element 8 are paired.
[0014]
FIG. 5 is a perspective view of the disassembled state of the hook 3, the link 5, the guide case 6, and the guide cover 61. The guide case 6 is a box-shaped body having left and right side surfaces opened, and has a first guide hole 62, a second guide hole 63, and a joint fulcrum shaft hole 64 formed on the upper and lower surfaces, respectively. The first guide hole 62 is a hole that is long in the left-right direction, and the second guide hole 63 is a hole that is parallel to and has the same length as the first guide hole 62. However, the left end of the hole is bent forward to define the hole position. It is formed to be shifted to the rear left side with respect to one guide hole 62.
[0015]
The hook 3 is formed integrally with upper and lower plates 34 and 35 provided with a first shaft hole 32 and a second shaft hole 33 on the right side. The hook 3 is disposed in the guide case 6, penetrates the first shaft hole 32 through the first guide hole 62 with the first shaft 65, and the second shaft hole 33 through the second guide hole 63 with the second shaft 66. Through. The hook 3 slides left and right with respect to the guide case 6, and the hook 31 swings rearward at the left end of the slide.
[0016]
The link 5 has an inverted letter shape in plan view, and upper and lower plates 51 and 52 are integrally formed on the right half thereof, and the right and left ends of the upper and lower plates 51 and 52 are connected to the connecting shaft 53 and the front end of the operation unit 2 described above. A fulcrum shaft hole 54 for the case 6 is provided. The left half of the link 5 is formed between the upper plate 34 and the lower plate 35 of the hook 3 and has a connection groove 55 formed at the end thereof to be connected to the second shaft 66. The link 5 is disposed in the guide case 6, connected to the hook 3, and penetrates the fulcrum shaft hole 54 via the fulcrum shaft hole 64 at the fulcrum shaft 67. Then, the guide cover 61 having a U-shaped cross section is placed over the guide case 6 from behind, and the upper and lower protrusions 611 at the front end of the guide cover are engaged with the upper and lower concave portions 68 of the guide cover 6.
[0017]
FIG. 6 is a horizontal sectional view showing the locked state. By pressing the temporary lock / locking push portion 21 of the operation unit 2 (arrow in the figure), the link 5 swings counterclockwise about the fulcrum shaft 67 in the drawing, and the hook 3 slides leftward, By swinging clockwise about the one shaft 65 in the drawing, the hook 31 projects from the left end of the sliding door A and engages with the locking hole C1 of the door stop C.
[0018]
An oscillator 8 is disposed at the right end in the operation unit 2, and is supported on a pair of oscillator bearings 15 in the casing 1 by a fulcrum shaft 82, and a tension spring is attached to the oscillator connecting portion 24 of the operation unit 2. 81 are connected by a connecting shaft 83 which is locked. The other end of the tension spring 81 is hooked on the spring hook 16 of the casing 1 with the fulcrum shaft 82 therebetween. In this state, since the tension spring 81 is located forward with respect to the fulcrum shaft 82, a clockwise force is applied to the rocker 8 in the drawing, and the temporary lock release push portion 22 of the operation unit 2 is rocked forward. I have.
[0019]
FIG. 7 is a horizontal sectional view showing the unlocked state. By pressing the temporary unlocking / pressing portion 22 of the operation portion 2 (arrow in the figure), the link 5 swings clockwise around the fulcrum shaft 67 in the drawing, and the hook portion 3 moves around the first shaft 65 in the drawing. The hook 31 is retracted into the sliding door A by sliding rightward following the swinging in the counterclockwise direction. Further, when the hand or elbow or the article held by the hand which pressed the temporary lock release push portion 22 is slid rightward along the surface of the sliding door A as it is, it protrudes from the surface of the sliding door A and is formed vertically long. The door A can be opened because it is caught by the handle A1 (see FIG. 1). In this way, from the unlocking of the temporary lock to the opening of the sliding door A can be easily performed in a series of operations, even when the hands are closed or when the hands cannot be used.
[0020]
In this state, since the tension spring 81 swings rearward with respect to the fulcrum shaft 82, a counterclockwise force is applied to the rocker 8 in the drawing, and the temporary lock release push portion 22 of the operation unit 2 is rocked rearward. ing. Also, at this time, by coloring the peripheral wall surface 211 of the temporary lock locking push portion 21 of the operation unit 2 with a fluorescent color or a reflective paint, it is possible to confirm at a glance that the temporary lock is in the unlocked state even from afar.
[0021]
FIG. 8 is a sectional view showing the movement of the hook 3 in FIGS. 6 and 7 in an easily understandable manner. The unlocked state and the opening of the sliding door are shown in the order of (a), (b) and (c). In the locked state (a), the first shaft 65 of the hook 3 is located at the left end of the first guide hole 62 of the guide case 6, and the second shaft 66 is bent forward at the left end of the second guide hole 63. At the end of the portion, the hook 3 projects the hook 31 at the tip from the left end of the sliding door A and hooks the edge of the locking hole C1 of the door stop C.
[0022]
Next, in the unlocked state (b), the first shaft 65 moves to a position slightly to the right from the left end of the first guide hole 62, and the second shaft 66 is bent forward of the second guide hole 63. It has moved to a position that has come out of the part where it has been done. Thus, the hook 31 at the tip is disengaged from the edge of the locking hole C1 while the hook 3 is slightly tilted counterclockwise about the first shaft 65.
Further, in (c) where the sliding door A is slightly opened, the first shaft 65 is located at the right end of the first guide hole 62, and the second shaft 66 is located at the right end of the second guide hole 63, and the hook The part 3 slides rightward with the inclination shown in FIG. 3B and retracts the hook 31 at its tip into the end of the sliding door A.
[0023]
FIG. 9 is a horizontal cross-sectional view showing a state where the temporary lock release lever 9 of the closing prevention means is unlocked in the same manner as in the state of FIG. 7. The temporary lock release lever 9 disposed substantially at the center of the rear surface of the casing 1 is vertically supported by the lever bearing 17 of the casing 1 and is moved clockwise in the drawing to operate the working edge 91 at the right end of the temporary lock release lever 9. The pair of projecting pieces 23 formed on the back surface of the temporary lock locking push part 21 of the part 2 are pushed back, so that the temporary lock is unlocked and the sliding door A opens.
[0024]
Moving the temporary lock release lever 9 clockwise in the drawing means a natural hand movement (arrow in the drawing) to open the sliding door A from the inside of the building or the storage (upper side in the drawing) to open the sliding door A. The sliding door can be opened without recognizing that the temporary lock release lever 9 is a closing prevention means.
[0025]
FIG. 10 is a vertical cross-sectional view showing a temporarily locked state. The tongue piece 42 attached to the rear end of the cylinder lock 4 projects upward from the notch 111 of the casing 1. In this state, the temporary lock can be unlocked by operating the operation unit 2.
[0026]
FIG. 11 is a longitudinal sectional view showing the locked state. Since the key (not shown) is inserted into the cylinder lock and turned 90 degrees clockwise in the drawing, the tongue piece 42 is tilted to the front of the tongue piece engaging piece 26 formed at the upper right corner of the operation part 2 so that the operation part 2 Even if the user pushes the temporary lock release push portion 22, the operation portion 2 does not swing and cannot be unlocked.
[0027]
FIG. 12 is a horizontal cross-sectional view showing a state in which the temporary lock locking push portion 21 is pressed for some reason in the state where the sliding door A is opened to be in the temporary lock locked state. When the door is closed from this state, the inclined surface 36 of the hook 31 of the hook 3 hits the edge of the locking hole C1 of the door stop C and is pushed forward to fend off the edge, and then return to the original position. When the sliding door A is closed, the door is temporarily locked.
[0028]
【The invention's effect】
Locking and unlocking of the temporary lock can be easily performed even if the user holds the item with both hands or is handicapped because it is only necessary to press the temporary lock unlocking push portion or the temporary lock unlocking push portion of the operation unit. . Further, when the hand or elbow or the article that pressed the temporary lock release push portion is slid rightward along the surface of the door, the door is easily opened because it is caught by the handle protruding from the door surface. Further, when the sliding door is open, the tip of the hook is hidden inside the door, so that the clothes and the body do not get caught.
[0029]
Further, since the tension of the tension spring is always applied to the operation unit, the locking or unlocking of the temporary lock is reliably performed even if the locking or unlocking operation on the operation unit is insufficient or not accurate.
Even if a person enters the inside of the prefabricated building or the storeroom and the temporary lock of the sliding door is locked by the closing prevention means, and the interior is dark, or even if the closing prevention means is not recognized, the sliding door is moved to open. The temporary lock release lever is operated by natural hand movement, and the sliding door can be easily opened.
[0030]
In addition, by coloring the peripheral wall surface of the temporary lock locking push part of the operation unit exposed from the casing in the temporary lock unlock state with a fluorescent color or a reflective paint, the temporary lock unlock state can be performed even from a position away from the door. It is easy to confirm and you can prevent forgetting to lock.
When the sliding door is open, you can close the sliding door as usual without worrying about whether the temporary lock is unlocked or locked, so you do not need to use extra care .
[Brief description of the drawings]
FIG. 1 is an overall perspective view showing a lock device of the present invention. FIG. 2 is an exploded perspective view showing an exploded lock device. FIG. 3 is a perspective view of a casing viewed from the front. FIG. FIG. 5 is an enlarged perspective view of a main part. FIG. 6 is a horizontal sectional view showing a locked state. FIG. 7 is a horizontal sectional view showing an unlocked state. 6, a cross-sectional view showing the main parts in FIG. 7 in an easy-to-understand manner. [FIG. 9] A horizontal cross-sectional view showing a state where the lock is unlocked by closing prevention means. [FIG. FIG. 12 is a longitudinal sectional view showing a locked state. FIG. 12 is a longitudinal sectional view showing a locked state where a sliding door is opened and a temporary lock is locked.
A: Sliding door B: Locking device 1: Casing 2: Operating part 3: Hook 4: Cylinder lock 5, Link 6, Guide case 7, Inner cover 8, Oscillator 9, Temporary lock release lever

Claims (3)

Formed in an elliptical shape in plan view, with the central part pivotally supported vertically with respect to the casing, and the temporary lock locking push part and the temporary lock release push part formed near both ends on the front face are alternately swung in the front-rear direction. A freely-operating operation unit, a box-shaped body having left and right side surfaces opened, and two parallel guide holes and one fulcrum shaft hole extending in the left-right direction on the upper and lower surfaces thereof, and one of the guide holes is bent. A guide case, and a connecting shaft between the operating unit and a fulcrum shaft to the guide case and a connecting shaft between the hook and the hook for moving the hook by changing the front-back swing of the operating unit into the left-right swing. A link in which three shafts are arranged in a substantially right-angled triangular position in a plan view, and a hook case comes up and down from the door end and engages and disengages with a locking hole of a door stop. A hook that pivots in the direction, slides in the left and right direction, and can swing in the front and rear direction, A cylinder lock that has a tongue that rotates simultaneously by inserting and rotating the cylinder, the tongue engages with an engagement piece of the operating part to prevent the operating part from swinging, and the operating part and the guide case. A lock structure for a sliding door, comprising a casing in which a link, a hook, and a cylinder lock are arranged, and an inner cover for fixing the casing to the sliding door. By pulling the connecting shaft between the oscillator supported by the fulcrum shaft on the casing and the operating part by a tension spring and fixing the fulcrum shaft to the casing, the oscillation of the oscillating member causes the tension spring to swing. Swings back and forth with respect to the fulcrum axis, and the rocker swings to the front and rear pole positions of the swing range by the pulling force of the tension spring. The lock structure for a sliding door according to claim 1, wherein the lock structure is configured to be in one of an unlocked state. As a means for preventing the provisionally locked state from being operated from the rear side of the sliding door to bring the provisionally unlocked state into operation, the provisionally unlocked lever extending vertically on the rear side of the casing is pivotally supported vertically. By forming a protruding piece inside the provisional lock locking push part of the part, the provisional lock unlocking lever swings by a natural operation of opening the sliding door and the end pushes the protruding piece forward. The lock structure for a sliding door according to claim 1 or 2, wherein the portion swings to be in a temporary unlocked state.

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