JP2006225983A - Locking/unlocking mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a locking/unlocking mechanism enabling even those persons who are handicapped and cannot turn a spare manually key inserted into the key hole of a cylinder lock to lock and unlock the cylinder lock. <P>SOLUTION: An outer guide block 1 is installed on the outer surface side of a door 2, an outer slider 4 is supported and guided on the outer side block so as to be moved in the vertical direction, and the cylinder lock 6 is carried on the outer slider 4 in such a state that the inner tube of the cylinder lock is fixed to the outer slider. Then, an outer pinion fitted to the outer tube of the cylinder lock is engaged with a vertically extending outer rack fixed to the outer guide block and the spare key 29 is inserted into the inner tube to release the outer tube. The outer slider 4 is formed to be vertically moved, and its movement is transmitted to the inner slider 18 through a drive member 15 and a receiving member 23. An inner transmission shaft 27 is rotated through the engagement of the inner slider installed in the inner slider with an inner pinion to control the locking/unlocking mechanism inside a lock box 16. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a novel locking / unlocking mechanism (hereinafter simply referred to as a locking / unlocking mechanism), and in particular, a locking / unlocking mechanism that can be locked / unlocked even by a person who is inconvenient and cannot turn a combined key inserted into a key hole of a cylinder lock. About.

  The locking / unlocking mechanism according to the present application is a completely new mechanism as far as the present applicant knows, and recognizes that there is no background art as well as related patent documents or non-patent documents.

  As is well known, when opening a door, a sliding door, or a locker door, it is possible to insert a key into the inner cylinder of the attached cylinder lock and rotate the inner cylinder of the cylinder lock in a predetermined direction together with the key. is necessary.

  The conventional locking / unlocking mechanism is, for example, a lock box via a tail bolt or a so-called dharma cam that is attached to the inner end of a rotating inner cylinder with a dead bolt or latch bolt that locks or locks the door to the door frame. It is because it is comprised so that it may take in and out.

  However, there are many people who are handicapped and who can insert the key into the keyhole of the cylinder lock but cannot turn it (the arm cannot be twisted). There is an inconvenience that a lock with a conventional locking / unlocking mechanism cannot be used.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a locking / unlocking mechanism that can open and close a door or the like without turning the key if the key can be inserted into the keyhole, thereby eliminating the above-described disadvantages.

  In order to achieve the above object, an invention according to claim 1 includes an outer guide block mounted on an outer surface of a door, an outer slider supported and guided by the outer guide block so as to be vertically movable, A cylinder lock mounted on the outer slider in a manner in which the movement axis is perpendicular to the door surface and the key guide of the inner cylinder is fixed, and an outer pinion fitted to the outer peripheral portion of the outer cylinder of the cylinder lock; The outer rack is engaged with and engaged with the outer pinion, and is fixed to the outer guide block at a relational position extending in the vertical direction, the inner guide block mounted on the inner surface of the door, and the vertical movement to the inner guide block. An inner slider that can be supported and guided, and a thumb turn shaft that engages the dharma of the lock box embedded in the door are formed at the inner end, the rotation axis is perpendicular to the door surface, and the inner side is rotatable. Guy An inner transmission shaft supported by the block, an inner pinion fitted to the inner transmission shaft, an inner rack engaged with and engaged with the inner pinion, and fixed to the inner slider at a relational position extending vertically. The drive member projecting on the inner end of the outer slider and the receiving member projecting on the outer outer surface of the inner slider face the door inner space in a positional relationship that does not interfere with the lock box. At the same time, the drive member and the receiving member are slidably engaged in the up and down direction, and the key is inserted into the key hole of the cylinder lock to release the engagement between the inner cylinder and the outer cylinder, thereby enabling the outer slider to move up and down. In addition, the inner slider is moved up and down through the drive member by moving the key together with the outer slider, and the up and down movement of the inner slider is rotated through the engagement between the inner rack and the inner pinion. Converted, Characterized by being adapted to transmit to the side transmission shaft.

  According to a second aspect of the present invention, an outer guide block mounted on the outer surface of the door, an outer slider supported and guided by the outer guide block so as to be movable in the vertical direction, and a rotation axis line on the door surface. A cylinder lock that is mounted vertically on the outer slider in a manner in which the key guide of the inner cylinder is fixed, an outer pinion that is fitted to the outer periphery of the outer cylinder of the cylinder lock, and an engagement with the outer pinion. The outer rack fixed to the outer guide block at the relative position extending in the vertical direction, the inner guide block mounted on the inner surface of the door, and supported and guided by the inner guide block so as to be movable in the vertical direction. The inner slider and the thumb turn shaft that engages with the dharma of the lock box embedded in the door are formed at the inner end, and the pivot axis is perpendicular to the door surface and is pivotally supported by the inner guide block. An inner transmission shaft; an inner pinion fitted to the inner transmission shaft; and an inner rack that meshes with and engages with the inner pinion and is fixed to the inner slider at a position extending vertically. The sliding part of the guide block and the inner guide block is cut out in the vertical direction with a constant width and centered on the joint surface, and a spring member is mounted on the notch, while the inner part of the outer slider is The drive member projecting from the end and the receiving member projecting from the outer surface of the inner slider on the outside of the outdoor space are allowed to face the door interior space in a positional relationship that does not interfere with the lock box, and the drive member and the receiving member are Engage the upper and lower cylinders so that they can move freely, and insert the key into the keyhole of the cylinder lock to disengage the inner and outer cylinders, allowing the outer slider to move up and down. By moving it up and down The inner slider is moved up and down via a member, and the up and down movement of the inner slider is converted into rotational movement through the engagement of the inner rack and the inner pinion and transmitted to the inner transmission shaft. .

  In the invention according to this application configured as described above, in any of the inventions described in claim 1 and claim 2, by inserting the key into the key hole of the cylinder lock and moving the key vertically, There is an expected effect that the locking / unlocking operation is possible without twisting.

  In addition to the above-described effects, the invention described in claim 2 is characterized in that the outer slider is located at the key insertion position after the key is operated in the locking direction or the unlocking direction, as is generally the case with the unlocking mechanism. Since it is automatically performed, it is easy to use.

  Furthermore, since the engagement between the inner cylinder and the outer cylinder of the cylinder lock cannot be released unless a joint key is inserted, and therefore the locking and unlocking operation cannot be performed, various effects such as not impairing the original function of the cylinder lock can be obtained. Play.

  The outer slider carrying the cylinder lock and the inner transmission shaft that drives the locking mechanism in the lock box are connected by a rack and a pinion so that the inner cylinder of the cylinder lock is fixed to the outer slider, Since the fitted outer pinion is engaged with the outer pinion fixed to the door outer surface side via the outer guide block, the outer slider is fixed unless the key is inserted into the keyhole of the cylinder lock. After the key is inserted into the keyhole, the outer cylinder of the cylinder lock is released from the inner cylinder so that it can be rotated around the inner cylinder, and the outer slider can be moved up and down, so that even people with disabilities can solve it. I was able to lock.

Embodiments of the present invention will be described below with reference to the drawings.
For convenience of explanation, the invention described in claim 2 will be described. Incidentally, the invention described in claim 1 omits the automatic return function of the outer slider from the invention described in claim 2.

  In FIG. 1, reference numeral 1 denotes an outer guide block, and the outer guide block 1 is fixedly attached to the outer surface of the door 2.

  As shown in FIGS. 2 to 4, the outer guide block 1 is a vertically long block body, and an outer guide groove 3 for guiding an outer slider described below in the vertical direction is formed at the center in the width direction. .

  A vertically long outer slider 4 is supported in the outer guide groove 3 so as to be movable up and down. Incidentally, the outer slider in the illustrated embodiment is a block body having a shape in which the cross section is a truncated cone and a rectangle is added.

  As shown in FIGS. 1 and 4, a cylinder holding cylinder 5 is integrally coupled to the inner surface of the outer slider 4. Within the cylinder holding cylinder 5, a pin tumbler lock, a disk tumbler lock, a lever tumbler A cylinder lock 6, such as a lock or a magnet tumbler lock, is accommodated with the axis of rotation perpendicular to the door surface 2.

  The cylinder lock 6 has a key guide 7 that is a part of its inner cylinder fixed to the outer slider 4 or a state in which the key guide 7 is firmly fitted into an opening formed in the outer slider 4. Attached to the outer slider 4.

  It should be noted that both sides of the outer slider 4 of the outer guide block 1 are integrally coupled by a back plate 8 (see FIGS. 1, 3 and 4) screwed to the inner surface of the outer guide block 1. As shown in FIG. 3, a clearance hole 9 that is a vertically long hole is opened at the center of the back plate 8 to avoid interference between the back plate 8 and the cylinder holding cylinder 5. .

  The sliding portions of the outer guide block 1 and the outer slider 4 are constant with the joint surface 11 (see FIG. 3 and FIG. 4) as the center and the width direction (left and right in the figure) being equal. A spring member 12 as a compression coil spring is elastically mounted on each of a pair of notch portions which are notched up and down and are not numbered for the sake of simplicity of the drawing.

  With the above-described configuration, in a normal state where no external force is applied to the outer slider 4, the outer slider 4 is elastic in a state where the spring member is fully extended, that is, the position where the notch is aligned in the vertical direction as shown in FIG. And metastable.

  However, as described later, when the outer slider 4 is pushed upward or downward via the key, the outer slider 4 moves upward or downward while compressing and contracting the spring member 12. It returns to the state position shown in FIG. 3 by elasticity.

  On the other hand, an outer pinion 13 is fitted to the outer peripheral portion of the outer end side of the cylinder lock 6, and correspondingly, an outer rack 14 extending in the vertical direction is fixed to the outer guide block 1, The outer rack 14 and the outer pinion 13 are in meshing engagement.

  As shown in FIGS. 1 and 4, a rod-shaped drive member 15 having a rectangular cross section is integrally provided at the inner end of the cylinder holding cylinder 5.

  The cylinder holding cylinder 5 and the drive member 15 are provided at positions that do not interfere with the lock box 16 (see FIG. 1) in the door 2.

  On the other hand, as shown in FIGS. 1 and 5 to 7, an inner guide block 17 is mounted on the inner surface of the door 2, and an inner slider 18 is supported and guided on the inner guide block 17 so as to be movable in the vertical direction. Has been.

  A laterally long knob 19 for raising and lowering the inner slider 18 with fingers is provided on the inner side of the inner slider 18, and a rectangular tube-shaped receiving member 23 having an upper surface 21 and a lower surface 22 (see FIG. 6) is provided on the outer side. Projected.

  In addition, the formation position of the receiving member 23 is determined so as not to interfere with the lock box 16 in the door 2.

  On the other hand, as shown in FIGS. 1 and 7, a cylindrical transmission shaft cover 24 is provided so as to connect the lock box 16 and the inner guide block 17.

  In the transmission shaft cover 24, an inner transmission shaft 27 having a thumb turn shaft 25 that engages with a locking and unlocking member such as a dharma in the lock box at the inner end and an inner pinion 26 formed at the outer end, It is rotatably supported with its rotation axis perpendicular to the door surface.

  The inner pinion 26 extends in the vertical direction and meshes with and engages with an inner rack 28 (see FIG. 7) fixed to the inner slider 18.

  As shown in FIG. 7, the outer end of the transmission shaft cover 24 is screwed with a female screw formed on the inner guide block so that the position of the thumb turn shaft 25 can be adjusted in accordance with the thickness of the door. However, since this is not related to the present invention, further detailed description is omitted.

  The locking / unlocking mechanism according to one embodiment of the invention described in claim 2 configured as described above has the unlocking state in the state shown in FIG. Is inserted, the engagement between the inner cylinder and the outer cylinder of the cylinder lock is released.

  Therefore, the outer cylinder can be rotated relative to the inner cylinder. In other words, the outer slider can move up and down.

  When the key is depressed without turning the key, as shown in FIGS. 8 and 9, the outer slider 4 and the inner slider 18 are integrally lowered, and the inner rack 28 (see FIG. 7) is also lowered accordingly. Therefore, the inner transmission shaft 27 and the thumb turn shaft 25 integral with the inner pinion 26 rotate in the locking direction, and, for example, a dead bolt protrudes from the lock box and is locked.

  When the lock is released after locking, the outer slider 4 returns to the position shown in FIG. 10 (position shown in FIG. 1) by the elasticity of the spring member 12, but the drive member 15 moves freely without the receiving member 23. Since 18 remains in the locking position shown in FIG. 11, the locking state of the lock box does not change.

  Incidentally, the vertical movement distance of the drive member 15 is set in correspondence with the amount of rotation sufficient to lock and unlock the inner transmission shaft 27.

  In the first aspect of the present invention, since there is no spring member 12 between the outer slider and the outer guide block, it is necessary to lock the outer slider down once and then return it to the state position shown in FIG. This does not hinder the locking / unlocking operation.

  Further, in order to unlock from the locked state, the outer slider 4 located at the position shown in FIG.

  Furthermore, in order to lock / unlock from the indoor side, it is possible to perform the locking / unlocking operation regardless of the outer slider just by moving the knob 19 up and down with fingers.

  Needless to say, the present invention can be realized by providing the receiving member 23 on the outer slider 4 side and the driving member 15 on the inner slider 18 side.

In the sectional view of the locking / unlocking mechanism according to one embodiment of the invention described in claim 2, the unlocked state is shown. The front view of the outside shows the locked state. The back view shows the unlocked state. Sectional drawing by the horizontal surface. The unlocked state is shown by a front view of the inside. The unlocked state is shown in the rear view of the inner guide block. A sectional view of the inner guide block in a horizontal plane shows an unlocked state. It is sectional drawing similar to FIG. 1, and shows the time of locking operation | movement. The back view. FIG. 9 is a cross-sectional view similar to FIG. 8, showing a state in which the outer slider has returned to the normal position. The back view of the inner side guide block in a locked state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer guide block 2 Door 3 Outer guide groove 4 Outer slider 5 Cylinder holding cylinder 6 Cylinder lock 7 Key guide 11 Joining surface 12 Spring member 13 Outer pinion 14 Outer rack 15 Drive member 16 Lock box 17 Inner guide block 18 Inner slider 19 Knob 21 Upper surface 22 Lower surface 23 Receiving member 25 Thumb turn shaft 26 Inner pinion 27 Inner transmission shaft 28 Inner rack 29 Key lock

Claims (2)

  An outer guide block mounted on the outer surface of the door, an outer slider supported and guided by the outer guide block so as to be movable in the vertical direction, a rotation axis line perpendicular to the door surface, and a key guide for the inner cylinder Cylinder lock mounted on the outer slider in a fixed manner, an outer pinion fitted on the outer periphery of the outer cylinder of the cylinder lock, and a related position that engages and engages with the outer pinion and extends in the vertical direction The inner rack is fixed to the outer guide block, the inner guide block is attached to the inner surface of the door, the inner guide block is supported by the inner guide block so that it can move in the vertical direction, and the inner slider is embedded in the door at the inner end. An inner transmission shaft that forms a thumb turn shaft that engages with the dharma of the locked box, has a rotation axis perpendicular to the door surface, and is rotatably supported by the inner guide block, and the inner transmission shaft. An inner pinion that is fitted, and an inner rack that meshes with and engages with the inner pinion and is fixed to the inner slider at a relational position extending in the vertical direction, and protrudes from the inner end of the outer slider. The drive member and the receiving member projecting on the outer surface of the inner slider on the outer side of the inner slider are allowed to face the door inner space in a positional relationship that does not interfere with the lock box, and the drive member and the receiving member can be moved up and down. By engaging and inserting the key into the key hole of the cylinder lock, the inner cylinder and the outer cylinder are disengaged to allow the outer slider to move up and down, and the key is moved up and down integrally with the outer slider. The inner slider is moved up and down via the drive member, and the vertical movement of the inner slider is converted into rotational movement through the engagement between the inner rack and the inner pinion and transmitted to the inner transmission shaft. Answer Mechanism.   An outer guide block mounted on the outer surface of the door, an outer slider supported and guided by the outer guide block so as to be movable in the vertical direction, a rotation axis line perpendicular to the door surface, and a key guide for the inner cylinder Cylinder lock mounted on the outer slider in a fixed manner, an outer pinion fitted on the outer periphery of the outer cylinder of the cylinder lock, and a related position that engages and engages with the outer pinion and extends in the vertical direction The inner rack is fixed to the outer guide block, the inner guide block is attached to the inner surface of the door, the inner guide block is supported by the inner guide block so that it can move in the vertical direction, and the inner slider is embedded in the door at the inner end. An inner transmission shaft that forms a thumb turn shaft that engages with the dharma of the locked box, has a rotation axis perpendicular to the door surface, and is rotatably supported by the inner guide block, and the inner transmission shaft. An inner guide pinion that is fitted, and an inner rack that meshes with and engages with the inner pinion and that is fixed to the inner slider at a relational position extending in the vertical direction. The outer guide block and the sliding portion of the inner guide block A drive member projecting at the inner end portion of the outer slider, and a spring member is mounted on the notch portion. And the receiving members projecting on the outer outer surface of the inner slider face the door inner space in a positional relationship that does not interfere with the lock box, and the drive member and the receiving member are movably engaged in the vertical direction, By inserting the key into the key hole of the cylinder lock, the inner cylinder and the outer cylinder are disengaged to allow the outer slider to move up and down, and the key is moved up and down together with the outer slider to move the drive member Up the inner slider through It is dynamic, locking and unlocking mechanism, characterized in that the vertical movement of the inner slider is converted into rotary motion through the engagement of the inner rack and the inner pinion and so as to transmit to the inner transmission shaft.

Images