JP4587142B2 - Locking / unlocking mechanism - Google Patents

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 capable of being locked / unlocked even by a person who is inconvenient and cannot turn a 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.

  However, the present applicant has previously proposed a locking / unlocking mechanism related to the present application with Patent Document 1 described later.

  The locking / unlocking mechanism proposed with Patent Document 1 inserts a key into a key hole of a cylinder lock carried by an outer slider, and raises and lowers the key without turning the key.

On the other hand, the present invention is the same as the invention described in Patent Document 1 until the key is inserted into the key hole of the cylinder lock, but the cylinder lock is swung in a plane perpendicular to the door surface after that. Is different.
Japanese Patent Application No. 2005-040829

  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, the invention according to claim 1 is characterized in that an outer guide block mounted on the outer surface of the door, and the outer guide block swings around a swing shaft parallel to the door surface and horizontal. A swing block that is supported and guided, and a cylinder lock that is supported by the swing block in such a manner that the axis of rotation is in a plane perpendicular to the door surface and the key guide of the inner cylinder is fixed. And a control pin planted on the outer peripheral side surface of the outer cylinder of the cylinder lock, and an opening extending in a direction perpendicular to the door surface in the guide groove of the outer guide block facing the control pin. A fixed slit with a drum-shaped cross section, an inner guide block mounted on the inner surface of the door, a slider supported and guided by the inner guide block so as to be movable in the vertical direction, and a door at the inner end. With the Dharma of the buried lock box An inner transmission shaft that is pivotally supported by the inner guide block, and an inner pinion that is mounted on the inner transmission shaft. A drive member projecting from the inner end of the swing block, and a chamber of the inner slider, having an inner rack engaged with and engaged with the pinion and fixed to the inner slider at a relative position extending in the vertical direction The receiving members projecting on the outer surface of the outer side face the interior space of the door in a positional relationship that does not interfere with the lock box, and the driving member and the receiving member are slidably engaged in the vertical direction, so that the keyhole of the cylinder lock By inserting the key to the inner cylinder, the inner cylinder and the outer cylinder are disengaged to allow the rocking block to swing, and by tilting the key to the vertical direction, the inner slider is moved up and down via the drive member. , This inner slider up and down It is converted into rotary motion through the engagement of the inner rack and the inner pinion, characterized in that so as to transmit to the inner transmission shaft.

  According to the second aspect of the present invention, the outer guide block mounted on the outer surface of the door, and the outer guide block are supported and guided by the outer guide block so as to be swingable about a swing shaft that is parallel to the door surface and horizontal. A swinging block, a cylinder lock carried by the swinging block in such a manner that the axis of rotation is in a plane perpendicular to the door surface and the key guide of the inner cylinder is fixed, and the cylinder lock A cross-sectional shape that extends in the direction perpendicular to the door surface in the guide groove of the outer guide block that is planted on the outer peripheral side surface of the outer cylinder and engages with the control pin. Is a drum-shaped fixed slit, an inner guide block mounted on the inner surface of the door, a slider supported and guided by the inner guide block so as to be movable in the vertical direction, and a lock box embedded in the door at the inner end. Thumb turn shaft engaged with Dharma An inner transmission shaft that is formed and pivotally supported by the inner guide block so that the rotation axis is perpendicular to the door surface, and an inner pinion that is mounted on the inner transmission shaft, and meshed with the inner pinion. And an inner rack fixed to the inner slider at a relational position extending in the vertical direction. The entire shape of the outer guide block and the sliding portion of the inner guide block is an arcuate shape with the joining surface as a split surface. And a drive member projecting from the inner end of the rocking block, with a spring housing groove having both ends closed and a spring housing groove closed at both ends. 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, Insert the key into the keyhole of the cylinder lock This disengages the inner cylinder and the outer cylinder to allow the swing block to swing, and further, by tilting the key in the vertical direction, the inner slider is moved up and down via the drive member. The vertical movement is converted into rotational movement through engagement between the inner rack and the inner pinion, and is transmitted to the inner transmission shaft.

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

Further, in the invention according to claim 2, in addition to the above-mentioned desired effect, the rocking block is inserted into the lock key insertion angle after the rocking operation in the locking direction or the unlocking direction, as is generally the case with the unlocking mechanism. Since returning to the position 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 swing block carrying the cylinder lock and the inner transmission shaft that drives the lock mechanism in the lock box are connected by a rack and a pinion to fix the inner cylinder of the cylinder lock to the swing block, and Since the control pin implanted in the cylinder is engaged with the fixed slit formed in the outer guide flock, the outer slider is fixed unless the key is inserted into the keyhole of the cylinder lock, and the key is inserted into the keyhole. After that, the swing block is made swingable, and the inner slider can be moved up and down through the engagement of the drive member projecting from this and the receiving member provided on the inner slider. It was made possible for people with disabilities to lock and unlock.

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. By the way, the invention described in claim 1 is obtained by omitting the automatic return function of the swing block 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 a swing block described below can be swung within a plane perpendicular to the door surface at the center in the width direction. An outer guide groove 3 (see FIGS. 2 and 4) for guiding is formed.

  A swing block 4 is guided in the outer guide groove 3 so as to be swingable in a plane perpendicular to the door surface around a swing shaft 8 (see FIGS. 1 and 3) parallel to the door surface and horizontal. ing. Incidentally, the rocking block 4 in the illustrated embodiment is a thick-walled block body.

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

  Incidentally, in a normal state where no external force is applied to the swing block 4, the cylinder lock 6 has its rotation axis 9 perpendicular to the door surface. However, when swinging as described later, the angular position shown in FIG. As a limit, it swings in a plane perpendicular to the door surface.

  The cylinder lock 6 is in a state in which the key guide 7 which is a part of the inner cylinder is fixed to the swing block 4 or the key guide 7 is firmly fitted in the opening formed in the swing block 4. And mounted on the swing block 4.

  Note that one of the sliding portions of the outer guide block 1 and the swing block 4 has a joint surface 11 (see FIG. 6) or the outer guide groove 3 as a dividing surface, and the overall shape is an arc shape and has a cross section. A spring housing groove 10 (see FIG. 5) having both ends closed is formed, and a spring member 12 as a compression coil spring is elastically mounted in the spring housing groove 10.

  With the above-described configuration, in a normal state where no external force is applied to the swing block 4, the swing block 4 is in a state where the spring member is extended to the maximum extent, that is, as shown in FIG. Take elastic and metastable.

  However, as will be described later, when the swing block 4 is pushed clockwise or counterclockwise in FIG. 1 via the key, the swing block 4 swings while compressing and contracting the spring member 12, but when the hand is released. The spring member 12 returns to the normal position shown in FIG.

  As shown in FIGS. 1, 3 and 4, the side surface of the outer peripheral portion of the cylinder lock 6 near the key guide 7 is, in other words, the side surface in the normal state shown in FIG. Control pins 13 extending in the direction are implanted.

  The control pin 13 protrudes outward through a notch of the cylinder holding cylinder 5 that is not numbered for the sake of simplicity.

  And the front-end | tip part of this control pin 13 is extended in the direction perpendicular | vertical to a door surface in the guide groove 3 (refer FIG. 4) of the outer side guide block facing this control pin, and a cross-sectional shape is a drum shape. It is engaged with the fixed slit 14 (see FIG. 4) of (see FIG. 3).

  The reason why the cross-sectional shape of the fixed slit 14 is a drum shape is to prevent the control pin 13 and the fixed slit 14 from rolling when the swing block 4 described later swings.

On the other hand, as shown in FIGS. 1 and 4, a rod-shaped drive member 15 having a rectangular cross section is integrally projected 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, 7 and 8, 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 indoor 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. 8) 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 9, 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 fixed to the inner slider 18 (see FIG. 9).

  As shown in FIG. 9, 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, when a key is not inserted into the key hole of the cylinder lock on the outer surface of the door, or a different key that is not a key is inserted. In this case, since the inner cylinder and the outer cylinder of the cylinder lock are integrally connected to each other via a tumbler, the control pin 13 and the swing block 4 are integrated. It does n’t move.

  On the other hand, when the state shown in FIG. 1 is set to the unlocked state and the joint key 29 is inserted into the keyhole of the cylinder lock for locking from the outdoor side, the engagement between the inner cylinder and the outer cylinder of the cylinder lock is released.

  Therefore, the outer cylinder can rotate relative to the inner cylinder, and the swing block 4 can swing as described below.

  For example, rotating the swing block 4 in the counterclockwise direction in FIG. 1 means that the entire swing block 4 is raised by a predetermined amount with its rotation axis 9 perpendicular to the door surface. This is nothing but matching the swing shaft 9 to the state shown in FIG.

  If the outer cylinder and the inner cylinder of the cylinder lock are not rotatable relative to each other in the first half ascending process, the cylinder holding cylinder 5 cannot be raised in FIG. 3, but when the key is inserted into the key hole, the fixed slit is inserted. The cylinder holding cylinder 5 can be raised in the outer guide groove 3 (see FIG. 4) while tilting the control pin 13 within 14.

  Then, in the latter half of the swing axis alignment process, the control pin 13 is rotated by a slight angle around its central axis, and the swing block 4 is tilted while moving outward as a whole. That is, the swing block can swing when the key is inserted.

  When the key is pushed up without turning the key, the inner slider 18 is lowered by the drive member 15 (not shown), and the inner rack 28 (see FIG. 9) is also lowered accordingly, so that the inner pinion 26 is integrated. The inner transmission shaft 27 and the thumb turn shaft 25 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 rocking block 4 returns to the position shown in FIG. 1 due to the elasticity of the spring member 12, but the drive member 15 is loosely moved in the receiving member 23. It remains in the indicated locking position, and the lock 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 swing block and the outer guide block, the swing block needs to be tilted and locked, and then returned to the state position shown in FIG. However, this does not interfere with the locking / unlocking operation.

  Further, in order to unlock from the locked state, the swing block 4 at the angular position shown in FIG. 1 may be tilted clockwise and then released.

  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.

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 diagram for demonstrating the mounting state of a spring member. Sectional drawing similar to FIG. 4 for demonstrating the mounting state of a spring member. The unlocked state is shown by a front view of the inside of the locking / unlocking mechanism. The back view. A sectional view of the inner guide block in a horizontal plane shows an unlocked state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer guide block 2 Door 3 Outer guide groove 4 Oscillating block 5 Cylinder holding cylinder 6 Cylinder lock 7 Key guide 11 Joining surface 12 Spring member 13 Control pin 14 Fixed slit 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, a swing block supported and guided by the outer guide block so as to be swingable around a horizontal swing shaft that is parallel to the door surface, and a rotation axis line of the door A cylinder lock carried by the swing block in a manner that is in a plane perpendicular to the surface and in which the key guide of the inner cylinder is fixed, and is installed on the outer peripheral side surface of the outer cylinder of the cylinder lock A control pin, a guide slit of the outer guide block opposite to the control pin, extending in a direction perpendicular to the door surface and opening, and engaging with the control pin. An inner guide block mounted on the inner guide block, a slider guided to be movable in the vertical direction on the inner guide block, and a thumb turn shaft that engages with a dharma of a lock box embedded in the door at the inner end; Rotation axis is perpendicular to door surface And an inner transmission shaft that is rotatably supported by the inner guide block, an inner pinion that is mounted on the inner transmission shaft, and a meshing engagement with the inner pinion that extends in the vertical direction. An inner rack fixed to the inner slider, and the driving member protruding from the inner end of the swing block and the receiving member protruding from the outer surface of the inner slider to interfere with the lock box, respectively. The drive cylinder and the receiving member are slidably engaged in the vertical direction, and the inner cylinder and the outer cylinder are engaged by inserting the key into the key hole of the cylinder lock. The swinging block can be swung, and the inner slider is moved up and down via the drive member by tilting the key in the vertical direction, and the vertical movement of the inner slider is related to the relationship between the inner rack and the inner pinion. Rotation through It was converted to the locking and unlocking mechanism, characterized in that so as to transmit to the inner transmission shaft.   An outer guide block mounted on the outer surface of the door, a swing block supported and guided by the outer guide block so as to be swingable around a horizontal swing shaft that is parallel to the door surface, and a rotation axis line of the door A cylinder lock carried by the swing block in a manner that is in a plane perpendicular to the surface and in which the key guide of the inner cylinder is fixed, and is installed on the outer peripheral side surface of the outer cylinder of the cylinder lock A control pin, a guide slit of the outer guide block opposite to the control pin, extending in a direction perpendicular to the door surface and opening, and engaging with the control pin. An inner guide block mounted on the inner guide block, a slider guided to be movable in the vertical direction on the inner guide block, and a thumb turn shaft that engages with a dharma of a lock box embedded in the door at the inner end; Rotation axis is perpendicular to door surface And an inner transmission shaft that is rotatably supported by the inner guide block, an inner pinion that is mounted on the inner transmission shaft, and a meshing engagement with the inner pinion that extends in the vertical direction. The inner rack is fixed to the inner slider, and the outer guide block and the sliding portion of the inner guide block have a joining surface as a split surface, the overall shape is an arc shape, and the cross section is a semicircle. A spring housing groove having both ends closed is formed, and a spring member is elastically mounted on the groove. On the other hand, a driving member projecting from the inner end of the swing block and a projecting outer surface of the inner slider are provided. The receiving members are allowed to face the interior space of the door in a positional relationship that does not interfere with the lock box, and the drive member and the receiving member are slidably engaged in the vertical direction, and the key is inserted into the key hole of the cylinder lock. To engage the inner and outer cylinders The swinging block can be swung, and the inner slider is moved up and down via the drive member by tilting the key in the vertical direction, and the vertical movement of the inner slider is engaged with the inner rack and the inner pinion. The locking / unlocking mechanism is characterized in that it is converted into a rotational motion via a shaft and transmitted to the inner transmission shaft.

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