JP2000204811A - Lock for sliding door, and open lock mechanism for sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock for locking double sliding doors by simple operation so that they cannot be easily unlocked, and a mechanism for locking a sliding door as it is opened in a specified slender width. SOLUTION: An outer cylinder 3 is fixed to a sliding door 22, a cylinder 8 of a lock 7 is inserted to be freely movable in an axial line direction, and a spring 11 for restoration in the axial line direction is inserted between the lock 7 and the outer cylinder 3. A locking rod 13 is connected to a rotor 9 of the lock 7, and a radially swollen engagement part 13c is formed in a part of an outer circumference at an end part of it. The engagement part 13c coincides with an engagement hole 2a in a sliding door 21 at a specific axial rotation angular position to be inserted into it, and it is prevented from removal from the engagement hole 2a at other rotation angular positions. As a key is inserted into the lock 7 to be pushed inside the outer cylinder 3 in the axial line direction with the locking rod 13, and the locking rod 13 is rotated for a specified angle with the rotor 9, thereby the engagement part 13c of the locking rod 13 is engaged with the engagement hole 2a in. the other sliding door 21 for locking it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock for locking and unlocking a sliding door by pushing and rotating the rotor in the axial direction of the rotor, and a locking mechanism for the sliding door using the lock. The present invention relates to a device that can be locked in a narrow and open state.

[0002]

2. Description of the Related Art Conventionally, as a lock for a sliding door, there has been known a lock in which a lock rod is projected in the axial direction from one sliding door side to the other sliding door side, thereby restraining the sliding doors.
However, this lock has a disadvantage that it can be unlocked relatively easily by applying an external force in a direction of separating the sliding doors. On the other hand, a sliding door type aluminum sash crescent lock can only be locked with the sliding door closed. For example, in nursing homes for the aged, there is a demand to open some windows for indoor ventilation, but to prevent inadvertent residents from opening the windows and going out. A similar request may be for purposes such as ventilating a room while away or for pets to enter and leave. However, there is a problem that conventional crescent tablets cannot meet this demand.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a lock capable of locking a sliding door so that it cannot be easily unlocked by a relatively simple operation, and a locking method in which the sliding door is opened with a fixed narrow width. Another object of the present invention is to provide a locking mechanism for a sliding door such as an aluminum sash having a simple structure that can be double-locked together with a crescent in a closed state.

[0004]

In order to solve the above-mentioned problems, in the first invention, the outer cylinder 3 is fixed to the sliding door 22 with the axis directed to the object to be restrained such as the other sliding door 21. The cylinder 8 of the lock 7 is inserted into the cylinder 3 movably in the axial direction, the rotor 9 can be rotated by a predetermined angle by key operation, and a spring 11 for returning in the axial direction is provided between the lock 7 and the outer cylinder 3. Insert the lock rod 13 into the rotor 9 of the lock 7
Is formed on the other end side, and an engaging portion 13c bulging in the radial direction is formed on a part of the outer periphery, and this engaging portion 13c is attached to the other sliding door 21 at a rotation angle position around a specific axis. The key is inserted into the lock hole 7a so as to be aligned with the formed lock hole 2a and inserted into the lock hole 7a at another rotational position around the axis. While pushing both the rod 13 and the axially into the outer cylinder 3,
By rotating the lock rod 13 together with the rotor 9 by a predetermined angle, the engaging portion 13c of the lock rod 13 is engaged with the engaging hole 2a of the other sliding door 21 to lock the sliding door lock 1, thereby constituting the sliding door lock 1. did.

In the second invention, the rotor 9 of the lock 1 is extended from the cylinder 8 to the other sliding door 21 side, and a connecting portion 9a for connecting to one end of the lock rod 13 is provided at the extending end. And a pin hole 9b in the direction perpendicular to the axis line is formed in the connecting portion 9a, and a connecting portion 13a with the extending end of the rotor 9 is formed at one end of the locking rod 13. A pin hole 9b of the rotor 9 is
A pin hole 13b in the direction perpendicular to the axis line is formed, and the pin 14 is driven into the matched pin holes 9b, 13b so as to be connectable to the rotor 9.

In the third aspect of the invention, the lock 1 is fixed to the frame 29 on the mating side of the inner sliding door 22 and the outer sliding door 21 is fixed.
The receiving plate 2 to be engaged with the lock 1 is fixed inside any of the upper cross bar 26, the middle cross bar 27, and the lower cross bar 28, and the lock 1 moves the lock rod 13 to the outer sliding door 21 side by a key operation. The lock rod 13 of the cylinder lock has an outer sliding door 21
Portion 13 bulging in the radial direction on a part of the outer periphery of the tip portion on the side
c, and the receiving plate 2 has an engaging portion 13 of the locking rod 13.
c is received at a specific rotation angle around the axis, and at other rotation angles around the axis, an engagement hole 2a is formed to prevent the lock from coming off.
The doors are arranged in such a mutual positional relationship that they can be locked in a state in which a narrow opening having a required width A that does not allow a person to pass through is formed, thereby forming an opening / locking mechanism for the sliding door.

In a fourth aspect of the present invention, the lock according to the first aspect of the present invention is used as the lock 1 in the lock mechanism for opening the sliding door. That is, the outer cylinder 3 is fixed to the inner sliding door 22 with the axis directed to the outer sliding door 21, the lock 7 is inserted into the outer cylinder 3 movably in the axial direction, and the key is inserted into the cylinder 8 of the lock 7. The rotor 9 is incorporated so as to be rotatable by a predetermined angle, and an axial return spring 11 is inserted between the lock 7 and the outer cylinder 3. One end of the lock rod 13 is connected to the rotor 9 of the lock 7. On the other end side, an engaging portion 13c bulging in the radial direction is formed on a part of the outer periphery, and the engaging portion 13c is formed.
Are arranged so as to match with and be inserted into the engagement holes 2a of the outer sliding door 21 at a specific rotation angle around the axis, and to be prevented from falling out of the engagement holes 2a at other rotation angles around the axis. Is inserted into the lock 7, and the lock 9 is pushed together with the lock rod 13 into the outer cylinder 3 while the rotor 9 is being pressed.
At the same time, by rotating the lock rod 13 by a predetermined angle, the engagement portion 13c of the lock rod 13 is engaged with the engagement hole 2a of the outer sliding door 21 to lock.

In the fifth invention, the engaging hole 2a of the outer sliding door 21 is an elongated hole extending in the horizontal direction, and the engaging portion 13c of the lock rod 13 is oriented horizontally at the time of unlocking and vertically at the time of locking. , So that the relative movement of the lock rod 13 is allowed in the range of the long hole. This allows the sliding door to be opened and closed freely within a predetermined narrow range.

[0009]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view from the indoor side of a sliding door type aluminum sash to which the opening / locking mechanism of the present invention is applied, FIG. 2 is a front view of the opening / locking mechanism of the present invention, and FIG. 3 is a part of the opening / locking mechanism of the present invention. FIG. 4 is a cutaway plan view, and FIG. 4 is a partially cutaway side view of the unlocking mechanism of the present invention.

In FIG. 1, an outer sliding door 21 and an inner sliding door 22 are erected in an opening 23 of a house so as to be able to slide. The outer sliding door 21 is provided with left and right side frames 24, 2
The upper bar 26, the middle bar 27, and the lower bar 28 are passed between 5, and glass is fitted between each bar. The inner sliding door 22 has the same structure, and includes frames 29 and 30, an upper crosspiece 31, a middle crosspiece 32, and a lower crosspiece 33, and is fitted with glass.

The lock 1 is fixed to the frame 29 on the mating side of the inner sliding door 22. On the other hand, a receiving plate 2 engageable with the lock 1 is fixed to the inside of the middle rail 27 of the outer sliding door 21. As shown in FIGS. 3 and 4, the lock 1 is configured so as to be locked and unlocked by engaging and disengaging the lock rod 13 with the engaging portion 2 a of the receiving plate 2 by key operation. And
The receiving plate 2 and the lock 1 are, as shown in FIG.
3 are arranged in a mutual positional relationship that can be locked in a state where a narrow opening portion having a required width A of a limit that a person cannot pass through is formed. In addition, the receiving plate 2 is the upper rail 2 of the outer sliding door 21.
6, can be attached to any of the middle crosspiece 27 and the lower crosspiece 28, and the lock 1 can be fixed according to its position.

As shown in FIGS. 2 to 4, the middle rail 27 of the outer sliding door 21 is formed of a substantially flat rectangular cylindrical aluminum member, and a hole 27b is formed in a side wall 27a on the indoor side. The receiving plate 2 is made of stainless steel and has an engaging hole 2 a formed of a long hole in the vertical direction of the sliding door 21. The engaging hole 2 a is overlapped with the hole 27 b of the middle rail 27 and screwed onto the middle rail 27. You. The receiving plate 2 reinforces the middle rail 27 made of aluminum and relatively weak.

The lock 1 is mounted so that its axis is directed toward the outer sliding door 21 and passes through the frame 29 of the inner sliding door 22. The outer cylinder 3 is fixed to the frame 29 with screws 4 at the mounting flange 3a at one end. The outer cylinder 3 has a guide groove 3b extending in the axial direction, and an annular lid 5 is attached to the other end side with a screw 6.

A lock 7 is mounted in the outer cylinder 3. The lock 7 includes a cylinder 8 and a rotor 9 incorporated into the cylinder 8 so as to be rotatable at a predetermined angle by inserting a key. The cylinder 8 has a guide screw 1
0 is screwed in the radial direction with the head projecting to the outer periphery. The cylinder 8 is inserted into the outer cylinder 3 movably in the axial direction by engaging the head of the guide screw 10 with the guide groove 3 b of the outer cylinder 3. , So that the head is always protruded toward the indoor side (forward).

The rotor 9 protrudes rearward from the cylinder 8, extends through the cover 5 of the outer cylinder 3 rotatably around the axis within a predetermined angle range, and movably in the axial direction, and further to the rear of the cover 5. It is protruding. The lid 5 has a boss 5a at the rear, and a notch step 5 having a range of approximately 90 ° in the circumferential direction is provided at the leading edge thereof.
b is formed. A guide groove 5c extending in the axial direction is formed on the inner periphery of the lid 5 such that the rear end faces the circumferential start end of the cutout step 5b. A guide pin 12 is press-fitted in the radial direction at the intermediate portion of the rotor 9 with its head protruding outward. The head of the guide pin 12 engages with the guide groove 5c of the lid 5 to guide the longitudinal movement of the rotor 9 and at the rear end of the rotor 9 in the axial direction,
Exposed at the beginning of the notch step 5b of the lid 5, the notch 9b of the notch step 5b
The rotation around the axis of the rotor 9 in the range of 0 ° is allowed.

A bifurcated connecting portion 9 at the rear end of the rotor 9
A is formed with a pin hole 9b in the direction orthogonal to the axis.
A pin hole 13b is formed in the connecting portion 13a at the front end of the lock rod 13 in a direction perpendicular to the axis. The connecting portion 9a of the rotor 9 and the connecting portion 13a of the locking rod 13 are connected by press-fitting the pin 14 into the pin holes 9b, 13b that match each other. The locking rods 13 having different lengths easily cope with changes in the thickness of the sliding door. At the rear end side of the lock rod 13, an engaging portion 13c bulging in the radial direction is provided at a position 180 degrees away from the outer periphery. This engagement portion 13
c is inserted into the engaging hole 2a of the receiving plate 2 attached to the outer sliding door 21 at a rotation angle position around a specific axis of the rotor 9, that is, at a position where the guide pin 12 matches the guide groove 5c, and At other rotation angle positions around the axis, they are arranged so as not to come off from the engagement holes 2a.

Accordingly, with the inner sliding door 22 opened by the required width A, the key is inserted into the rotor 9 and the cylinder 8,
When the rotor 9 and the lock rod 13 are integrally pushed into the outer cylinder 3 in the axial direction, the engaging portion 13c is inserted into the engaging hole 2a of the receiving plate 2, and the guide pin 12 is connected to the notch step 5b of the lid 5. And the rotation of the rotor 9 is allowed. When the key is rotated in this state, the lock rod 1 and the rotor 9 are rotated.
3 rotates 90 ° in the range of the notch step 5b, and the lock rod 1
3, the engaging portion 13c is prevented from being removed from the engaging hole 2a of the receiving plate 2, and the inside and outside sliding doors 21 and 22 are locked. Since the engaging portion 13c of the lock rod 13 is engaged with the engaging hole 2a of the receiving plate 2 and is prevented from coming off in the axial direction, the safety against intrusion from the outside is high. Contrary to the above, the lock 1 can be attached to the outer sliding door, and the receiving plate can be attached to the inner sliding door, respectively, so that the lock can be unlocked from the outdoor side. The lock 1 can be applied as a lock for various sliding doors, for example, as a lock for locking and unlocking a sliding door of a prefab office from the outside, in addition to the illustrated embodiment.

In another embodiment shown in FIG. 5, the engaging hole 2a of the receiving plate 2 is a long hole extending in the horizontal direction. When the engaging portion 13c of the locking rod 13 is in the turning angle position at the time of unlocking rotation in the horizontal direction, the locking rod 13 is inserted into the engaging hole 2a, and the locking rod 13 in the vertical direction is locked. At the rotation angle position, the lock rod 13 is prevented from falling out of the engagement hole 2a, and relative movement of the lock rod is allowed within the range of the long hole. Therefore, the key is inserted into the rotor 9 and the key is inserted into the outer cylinder 3 in the axial direction together with the lock rod 13.
If the engaging portion 13c is engaged with the engaging hole 2a by rotating the sliding door 90 ° while being pushed into the sliding door, the sliding door is unlockably locked within the range of the length of the engaging hole 2a.
The opening width of the sliding door can be arbitrarily adjusted or closed within a predetermined narrow opening width in which no person can enter or leave.

Although the present invention has been described with reference to the case where the present invention is applied to an aluminum sash sliding door, the present invention is not limited to an aluminum sash but can be applied to a steel sash, a wooden sliding door, and any other sliding doors. The present invention is not limited to sliding doors, and can be applied to other types of sliding doors such as single sliding doors and sliding doors. When applied to other types of sliding doors such as a single sliding door and a sliding door, an engaging hole 2 is formed in another member such as a wall surface parallel to the sliding door to which the lock is attached.
a is provided, and this is set as a binding target. The lock may be provided to be operated from the indoor side of the sliding door, or may be provided to be operated from the indoor side.

[0020]

As described above, in the first invention,
This has the effect that the sliding door can be locked by a relatively simple operation so that it cannot be easily unlocked. In the second invention, since the rotor 9 and the lock rod 13 are connected by the pin 14, the lock rod
3 has an effect that it can be easily applied by changing the dimensions. In the third invention, ventilation of the room can be achieved from the narrow opening portion, or the entrance of the pet can be secured, and further opening is impossible without the key. This has the effect that inadvertent escape from the indoor is prevented. According to the fourth aspect of the invention, the door can be locked by a relatively simple operation in a state where the sliding door is opened at a fixed narrow width, and further, there is an effect that the door cannot be easily unlocked from the outside. In the fifth invention, the sliding door is locked so as to be freely openable in the range of the length of the engagement hole 2a, and the opening width of the sliding door is arbitrarily adjusted within a predetermined narrow opening width in which no person can enter or exit, or It has the effect that it can be closed.

[Brief description of the drawings]

FIG. 1 is a front view from the indoor side of a sliding door type aluminum sash to which an opening and closing mechanism of the present invention is applied.

FIG. 2 is a front view of the unlocking mechanism of the present invention.

FIG. 3 is a plan view of the unlocking mechanism according to the present invention, with a portion cut away.

FIG. 4 is a side view in which a part of the unlocking mechanism of the present invention is cut away.

FIG. 5 is a front view of a receiving plate mounting portion of a sliding door according to another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 lock 2 receiving plate 2a engaging hole 3 outer cylinder 7 lock 8 cylinder 9 rotor 9a connecting portion 9b pin hole 11 spring 13 lock rod 13a connecting portion 13b pin hole 13c engaging portion 14 pin 21 outer sliding door 22 inner sliding door 23 opening 26 Upper crossing 27 Middle crossing 28 Lower crossing 29 Frame

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[Procedure amendment]

[Submission date] November 15, 1999 (1999.11.
15)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

Claims (5)

[Claims] 1. A lock which is attached to a sliding door and restrains between a sliding target and another restraining object such as a sliding door which overlaps in parallel with the sliding door, wherein the outer cylinder is fixed to the sliding door with its axis directed toward the restraining object. A cylinder, and a lock incorporated into the cylinder so as to be rotatable by a predetermined angle by inserting a key, the cylinder including a lock engaged with the rotor and the outer cylinder in an axially movable manner. An axial return spring inserted between the lock and the outer cylinder; an engagement coupled to the rotor of the lock at one end, and a radially swelled part of the outer periphery at the other end; Portion, the engaging portion is inserted into the engagement hole formed in the other sliding door at a specific rotation angle around the axis, and is inserted from the engagement hole at another rotation angle around the axis. Arranged to be retained A lock rod is inserted into the lock, and the lock rod is rotated together with the rotor by a predetermined angle while being pushed into the outer cylinder in the axial direction together with the lock rod. A lock for a sliding door, wherein an engaging portion of a lock rod is engaged with an engagement hole to be restricted to lock. 2. The rotor extends from the cylinder to the side to be restrained, and has a connecting portion with an end of the lock rod at an end on the extending side, and the connecting portion has a connecting portion perpendicular to the axis. The locking rod has a connecting portion on one end side with the extending end of the rotor, and the connecting portion has an axial direction perpendicular to the pin hole of the rotor. The sliding door lock according to claim 1, further comprising a pin hole, wherein the pin is driven into the corresponding pin hole so as to be connectable to the rotor. 3. A lock fixed to the frame on the mating side of the inner sliding door, and a receiving plate fixed to the inside of any of the upper, middle and lower crossings of the outer sliding door to engage with the lock. The lock comprises a cylinder lock that is rotatable by a predetermined angle while a lock rod is protruded in the axial direction toward the outside sliding door side by a key operation, and the lock rod of the cylinder lock is the outer side. An engaging portion swelling in the radial direction is provided on a part of the outer periphery of the tip portion on the sliding door side, and the receiving plate receives the engaging portion of the lock rod at a rotation angle position around a specific axis, and rotates around the other axis. At the rotation angle position, it has an engagement hole of a shape that prevents it from falling off, and the lock and the receiving plate can be locked in a state where a narrow opening portion of a required width of a limit that a person can not pass through the opening of the house is formed. It is characterized by being arranged in mutual positional relationship Sliding door of the open locking mechanism that. 4. The lock has an outer cylinder fixed to the inner sliding door with the axis directed to the outer sliding door, a cylinder, and a rotor incorporated into the cylinder so as to be rotatable by a predetermined angle by inserting a key. A lock in which the cylinder is rotatably engaged in the outer cylinder together with the rotor, an axial return spring inserted between the lock and the outer cylinder, one end side At the other end side of the lock has a radially swelling engaging portion on a part of the outer periphery, and the engaging portion engages the outer sliding door at a rotational angle around a specific axis. A lock rod which is inserted into the hole in alignment with the hole, and is arranged so as to be prevented from falling out of the engagement hole at another rotational angle around the axis, and the key is inserted into the lock, Both the lock rod and the axial direction The locking rod is rotated by a predetermined angle together with the rotor while being pushed into the cylinder, whereby the engaging portion of the locking rod is engaged with the engaging hole of the outer sliding door and locked. Item 4. An opening and locking mechanism for a sliding door according to Item 3. 5. The engaging hole of the other sliding door is a long hole extending in the horizontal direction, and the engaging portion of the lock rod is engaged with the other sliding door at a rotation angle position around an axis oriented in the horizontal direction. The key is inserted into the mating hole, is arranged so as to be prevented from falling out of the engaging hole at a rotation angle position around the axis facing in the vertical direction, and to allow relative movement of the lock rod within the range of the long hole, And by rotating the lock rod 90 ° together with the rotor while pushing the lock rod and the lock rod axially into the outer cylinder, the engaging portion of the lock rod is engaged with the other sliding door. Engage the hole,
4. The mechanism for unlocking a sliding door according to claim 3, wherein the sliding door is unlockably locked within a predetermined range.