JP3710079B2 - Locking device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention includes a crescent lock member rotatably attached to one shoji and a lock receiving member fixed to the other shoji, and the crescent lock member is pivoted from the release position to a position where the locked state can be established and locked. The present invention relates to a locking device formed to be locked by being engaged with a receiving member.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, for example, a locking device used for a sliding door lock is well known. As shown in FIGS. 6 and 7, the conventional structure of the locking device includes a lock main body 11 fixed to a summoning cage 2 of a one-sided shoji (inner shoji 1), and is rotatably attached to the lock main body 11. The crescent 10P comprising the crescent lock member 12 (the hook portion 13, the kneading portion 14, and the support shaft 15) and the summing rod 6 of the other shoji (external shoji 5) are fixed in correspondence with the crescent lock member 12. The crescent lock member 12 is rotated from the released position shown in FIG. 6 to the lockable state establishment position shown in FIG. 7, and the hook portion 13 of the crescent lock member 12 is moved to the lock receiving member 16. It is formed so as to be locked by being engaged with the locking portion 17. In FIGS. 6 and 7, reference numeral 3 denotes a glass of the inner shoji 1, and 7 denotes a glass of the outer shoji 5.
[0003]
Therefore, it can be locked by closing both the shojis (1, 5) and rotating the crescent lock member 12.
[0004]
[Problems to be solved by the invention]
By the way, in the above locking device, in order to lock both the shoji (1, 5), the crescent portion 14 of the crescent lock member 12 is pinched with, for example, the thumb and forefinger, and the crescent lock member is maintained while maintaining the state. 12 needs to be rotated.
[0005]
Here, the rotation operation of the crescent lock member 12 is such that the distance between the crescent lock member 12 and the glass 7 of the other shoji (5) is narrow, and both shojis (1, 5) In order to lock so that 6) is in close contact with the crescent lock member 12, it is necessary to rotate with a strong force while holding the grip portion 14 between the thumb and forefinger. It has been pointed out that it is difficult for elderly people whose functions have generally declined.
[0006]
An object of the present invention is to provide a locking device capable of easily locking and unlocking one shoji and the other shoji.
After correction [Means for Solving the Problems]
The invention of claim 1 includes a crescent lock member rotatably attached to the one shoji and a lock receiving member fixed to the other shoji, and the crescent lock member is rotated from the released position to the position where the locked state can be established. In a locking device formed to move and engage with a lock receiving member on the other shoji side, the box-shaped main body is provided on the summing rod of the one shoji screen so as to be movable along the vertical axis. An operation unit having a case and a rack extending in the vertical axis direction, and a pinion attached to the crescent lock member so as to be able to rotate synchronously with the rack are interlocked with a linear movement operation of the operation unit. The crescent lock member is configured to be rotatable from a release position to a position where the locked state can be established via a rack and a pinion, and the lower inner wall surface of the main body case is connected to the lower locking surface of the lock main body. Contact An upper stop position of the main body case and a lower stop position at which the upper inner wall surface of the main body case abuts the upper locking surface of the lock body, and the crescent lock member is in a release position. This is a locking device provided with a spring that urges toward a position where the locked state can be established, and further provided with movement allowing means for permitting movement of the operation unit on condition that the one shoji and the other shoji are closed .
[0008]
In the case of this invention, the movement permission means permits the movement of the operation unit on the condition that the one shoji and the other shoji are closed. When the operation unit is linearly moved (for example, lowered) along the longitudinal axis of the unilateral shoji summon box, the crescent lock member is rotated from the release position to the lockable state establishment position via the rack and the pinion. Thereby, the crescent lock member on the one shoji side engages with the lock receiving member on the other shoji side to lock both shoji screens. Since the spring biases the crescent lock member toward the position where the locked state can be established, the locked state can be maintained. At the time of unlocking, when the operation unit is linearly moved (raised), the crescent lock member rotates from the position where the locked state can be established to the release position via the rack and the pinion. Thereby, the crescent lock member on one side of the shoji side is released from the lock receiving member on the other side of the shoji side to unlock both shoji screens. Also in this case, the spring urges the crescent lock member toward release, so that the unlocked state can be maintained.
[0009]
Thus, since the crescent lock member is rotated simply by moving the operation portion linearly in one direction, the wrist compared to the conventional technique in which a predetermined portion (squeeze portion) of the crescent lock member is manually operated to rotate. Thus, it is possible to easily lock and unlock both shojis even for elderly people who have low physical strength and motor function. In addition, since the movement permitting means is provided, it is possible to reliably prevent the empty lock state in which the crescent lock member is positioned at the position where the lock state can be established in a state where both the shojis are not closed. . The appearance is also clean.
[0010]
According to a second aspect of the present invention, the movement permitting means includes a laterally moving member that holds the engaging roller in a protruding state, an urging spring that urges the laterally moving member outward, and a laterally projecting member that protrudes from the laterally moving member. An engagement portion provided on the lock main body portion, and a summing rod on the side of the external obstacle. Provided with an alignment member provided, and when the engagement roller is pressed inward by contacting the alignment member, the operation portion can be linearly moved and cannot be linearly moved when not pressed inwardly. It is a formed locking device.
[0011]
In the case of this invention, when both the shojis are closed, the engaging roller comes into contact with the alignment member and the lateral movement member is pushed inward against the elastic force of the biasing spring. The operation unit can move linearly along the vertical axis. When both the shojis are not closed, the engagement roller is not pushed inward, and as a result, the movement blocking portion is positioned on the movement path of the engagement protrusion. Thereby, the operation unit cannot be moved. Thus, resulting exhibit the same operation and effect as the invention of claim 1, a so-called air-lock state of crescent lock member in a state in which both sliding door is not closed will be positioned in the locked state can be established position further It can be surely prevented.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5, the basic structure of the sliding door locking device is the same as that of the conventional example (FIGS. 6 and 7), but the operation unit 21 and the rack and pinion mechanism (33, 32), the spring 18 and the movement permitting means 51 are provided, and the crescent lock member 12 is rotated in conjunction with the one-way linear movement of the operation portion 21, so that the one shoji (1) and the other shoji (5) It is formed so that it can be locked and unlocked.
[0013]
In addition, the same code | symbol is attached | subjected about the component which is common in the case of a prior art example (FIG. 6, FIG. 7), and the description is simplified or abbreviate | omitted.
[0014]
First, crescent lock member 12, as shown in FIG. 2, which is rotatably held via a shaft 15 to the bearing portion 11J of the lock body portion 11, release position and a 2-point indicated by the solid line in FIG. 1 are positionable formed in the locking state can be established the position shown by a chain line. In FIG. 1, reference numeral 18 denotes a spring that biases the crescent lock member 12 toward the release position and the lockable state establishment position.
[0015]
Here, the release position is an angular position at which the engagement between the hook portion 13 of the crescent lock member 12 and the locking portion 17 of the lock receiving member 16 is completely released, and the locked state establishment possible position is This is an angular position at which the hook portion 13 of the crescent lock member 12 can be engaged with the locking portion 17 of the lock receiving member 16.
[0016]
The operation unit 21 is configured to include a rack 33 that is movably provided along the vertical axis 2y on the summon 2 of the inner shoji 1 as a one-sided shoji and extends in the direction of the vertical axis 2y.
[0017]
More specifically, the operation unit 21 is molded by die casting or synthetic resin, and is integrally formed on a box-shaped main body case 22 and an inner wall surface 22E of the main body case 22 as shown in FIGS. The rack 33 is formed so as to be movable in the vertical direction along the guide grooves (41L, 41R) on the side of the lock body 11 in which the ridges (23L, 23R) of the body case 22 are slidably fitted. Has been.
[0018]
In this embodiment, the operation unit 21 includes an upper stop position (a position indicated by a two-dot chain line in FIG. 2) where the lower inner wall surface 22L of the main body case 22 abuts on the lower locking surface 11L of the lock main body portion 11, and the main body case. 22 is formed so as to be movable between a lower stop position (a position indicated by a solid line in FIG. 2) where the upper inner wall surface 22 </ b> U contacts the upper locking surface 11 </ b> U of the lock body 11.
[0019]
Further, the pinion 32 constituting the rack and pinion mechanism in cooperation with the rack 33 is attached to the crescent lock member 12 so as to be able to rotate synchronously in a state of being engaged with the rack 33. Specifically, as shown in FIG. 3, the pinion 32 is formed integrally with an upper portion protruding from the lock body portion 11 of the support shaft 15 of the crescent lock member 12.
[0020]
In particular, in this embodiment, both the shojis are designed so that the so-called empty lock state in which the crescent lock member 12 is positioned at the position where the locked state can be established in a state where the inner shoji 1 and the outer shoji 5 are not closed. A movement permitting means 51 is provided that permits the movement operation of the operation unit 21 on the condition that (1, 5) is closed.
[0021]
As shown in FIG. 1, the movement allowance means 51 is formed of an engaging portion 52 provided in the lock body 11 and an alignment member 58 provided in the summing rod 6 on the side of the external shoji 5. As shown in FIG. 4A, the engaging portion 52 includes a laterally moving member 53 that holds the engaging roller 54 in a state in which the engaging roller 54 protrudes from an opening 11K formed on the outer side surface of the lock body portion 11. An urging spring 55 for urging the moving member 53 outward, a movement preventing portion 53A protruding from the upper surface of the laterally moving member 53 in the drawing, and a movement preventing portion 53A on the main body case 22 of the operation portion 21. It is formed from the engagement protrusion 56 etc. provided correspondingly.
[0022]
In the movement permitting means 51, when both the shojis (1, 5) are closed (when both the summoning rods (2, 6) are aligned), as shown in FIG. Comes into contact with the alignment member 58 and the lateral movement member 53 is pushed inward against the elastic force of the urging spring 55. Then, the movement preventing portion 53 </ b> A formed integrally with the lateral movement member 53 is positioned at a position deviated from the movement path of the engagement protrusion 56. Thereby, the movement prevention of the engagement protrusion 56 by the movement prevention part 53A is released, and the operation part 21 can move linearly along the vertical axis 2y.
[0023]
Note that when both the shojis (1, 5) are not closed (when the two summing rods (2, 6) are not aligned), the engagement roller 54 is not pushed inward, and as a result, movement is prevented. The portion 53A is positioned on the movement path of the engaging protrusion 56. As a result, the movement preventing portion 53A prevents the engagement protrusion 56 from moving, and the operation portion 21 cannot move along the vertical axis 2y.
[0024]
Next, the operation of this embodiment will be described.
In order to lock the inner shoji 1 and the outer shoji 5, the both shojis (1, 5) are closed and the movement preventing portion 56A is prevented from moving the engaging protrusion 56A, and then is positioned at the upper stop position. For example, an index finger is placed on the upper portion of the main body case 22 to push down the operation portion 21 until the upper inner wall surface 22U comes into contact with the upper locking surface 11U of the lock main body portion 11 (that is, until the lower stop position is reached).
[0025]
Then, the locking state established shown in FIG. 2 Tenkusari line from the releasing position crescent lock member 12 in conjunction with the linear movement of the operating section 21 described above is shown by solid line in FIG. 1 through the pinion 32 and the rack 33 Rotate to possible position. Thereby, the crescent lock member 12 on the inner shoji 1 side engages with the lock receiving member 16 on the other shoji 5 side, and both shoji (1, 5) are locked.
[0026]
Further, when the operating portion 21 is pushed up with an index finger on the lower portion of the main body case 22 until the lower inner wall surface 22L comes into contact with the lower locking surface 11L of the lock main body portion 11 (that is, until reaching the upper stop position), The crescent lock member 12 rotates via the pinion 32 and the rack 33 from the locked state establishment position to the release position. Thereby, the engagement of the crescent lock member 12 with the lock receiving member 16 is released, and the both shojis (1, 5) are unlocked.
[0027]
In this way, both sliding doors (1, 5) can be locked / unlocked by simply moving the operation unit 21 straight in one direction without squeezing it, and the burden on the wrist and the like is significantly larger than in the past. It is reduced.
[0028]
Thus, according to this embodiment, the summon box 1 of the inner shoji 1 is provided with the box-shaped main body case 22 and the rack 33 extending in the direction of the vertical axis while being provided so as to be movable along the vertical axis 2y. The operation portion 21 and a pinion 32 attached to the crescent lock member 12 so as to be able to rotate synchronously with the rack 33 are engaged, and the crescent lock member 21 and the rack 33 are interlocked with the linear movement operation of the operation portion 21. It is configured to be pivotable from the release position to a position where the locked state can be established via the pinion 32, and the operation unit 21 is stopped at the upper portion where the lower inner wall surface 22L of the main body case 22 contacts the lower locking surface 11L of the lock main body 11. The crescent lock member 12 is released while the upper inner wall surface 22U of the main body case 22 is formed to be movable between the lower stop position where the upper inner wall surface 22U of the main body case 22 is in contact with the upper locking surface 11U of the lock body 11. A spring 18 that biases toward a position where the lock and lock state can be established, and further permits movement of the operation unit 21 on the condition that the one shoji (1) and the other shoji (5) are closed. Since the means 51 is provided , the crescent lock member 12 can be rotated only by linearly moving in one direction without pinching the operating portion 21. Therefore, in general, even elderly people with reduced physical strength and motor functions can easily lock and unlock the shoji (1, 5). In addition, it is possible to reliably prevent the empty lock state in which the crescent lock member 12 is positioned at the position where the locked state can be established in a state where both the shojis are not closed.
[0029]
Further, since the crescent lock member 12 having a complicated shape is covered with the box-shaped main body case 22 of the operation unit 21 so that it cannot be seen from the outside, the appearance is clear and the aesthetics can be further increased.
[0030]
Also, moving permitting means 51, a lateral movement member 53, the biasing spring 55, the engaging portion 52 provided in the containing and the lock body portion 11 a movement preventing portion 53A and the engaging projection 56, the outer sliding door 5 side And an alignment member 58 provided on the summing bar 6, and when the engaging roller 54 is pressed inward against the alignment member 58, the operation portion 21 can move linearly and inwardly. Since it is formed so that it cannot move linearly when it is not pushed in, it is possible to prevent the empty lock more reliably.
[0031]
In the above embodiment, the inner shoji 1 is selected as the one shoji and the outer shoji 5 is selected as the other shoji. However, in the case of a sliding door that is locked from the outside, the first shoji is removed from the outer shoji 5 and the other. The shoji is formed from the shoji 1.
[0032]
【The invention's effect】
According to the present invention, it is possible to rotate manipulating crescent lock member only by linear movement in one direction without pinching the operation unit. Therefore, in general, elderly people with reduced physical strength and motor functions can easily lock and unlock both shoji screens, and the crescent lock member can be positioned at a position where the lock status can be established when both shoji screens are not closed. It is possible to surely prevent the empty lock state from being generated. The appearance is also clean .
[0033]
According to the invention of claim 2, except that can achieve the same effects as in the invention of 請 Motomeko 1, can be further reliably prevent the air lock condition occurs.
[Brief description of the drawings]
FIG. 1 is a side sectional view for explaining an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view for explaining the internal structure of the lock body and the operation part.
FIG. 3 is a cross-sectional view of the operation unit as seen from below.
FIG. 4 is a cross-sectional view of the movement permitting unit as seen from below.
FIG. 5 is a perspective view for explaining the external appearance of the operation unit.
FIG. 6 is a perspective view for explaining a conventional configuration of the locking device.
FIG. 7 is a perspective view for explaining a state where the crescent lock member and the lock receiving member are locked together.
[Explanation of symbols]
1 inner shoji (one shoji)
2 Assortment 框 5 External shoji (the other shoji)
6 Summoning bowl 10 Crescent 11 Lock body part 12 Crescent lock member 13 Hook part 15 Support shaft 16 Lock receiving member 17 Locking part 21 Operation part 22 Body case 32 Pinion 33 Rack 51 Movement permitting means

Claims (2)

A crescent lock member that is pivotally attached to one of the shojis and a lock receiving member that is fixed to the other shoji. The crescent lock member is pivoted from the released position to the position where the locked state can be established, and the other shoji side lock In a locking device formed to engage and lock the receiving member,
The one-side shoji summon box is provided so as to be movable along the vertical axis, and has a box-shaped main body case and a rack extending in the direction of the vertical axis, and the crescent lock member meshes with the rack. In this state, the crescent lock member is rotated from the release position to the lockable state establishment position via the rack and the pinion in conjunction with the linear movement operation of the operation unit. to be able to be configured,
Between the upper stop position where the lower inner wall surface of the main body case contacts the lower locking surface of the lock body and the lower stop position where the upper inner wall surface of the main body case contacts the upper locking surface of the lock body. Provided that a spring is provided that is movably formed along the longitudinal axis and urges the crescent lock member toward the release position and the lock-establishable position, and the one shoji and the other shoji are closed. A locking device provided with movement allowing means for allowing movement of the operation unit . The movement permitting means includes a lateral movement member that holds the engagement roller in a protruding state, an urging spring that urges the lateral movement member outward, a movement blocking portion that is formed to project from the lateral movement member, and An engagement portion provided on the main body case and corresponding to the movement blocking portion and provided on the lock body portion; The operation portion is linearly movable when the engagement roller is pressed inward while abutting the alignment member, and is not formed to be linearly movable when not pressed inward. The locking device according to 1.

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