JP4654222B2 - Lock - Google Patents

Description

  The present invention relates to, for example, a lock for a sliding door or the like that can perform simple locking / unlocking (temporary locking / unlocking) without key operation in addition to locking / unlocking by key operation (main locking / unlocking). The present invention relates to a lock suitable for use in an associative sliding door of an assembly house such as a storeroom, a warehouse, a garage, or the like.

  For example, when the sliding door of a storeroom installed outdoors is unlocked, the sliding door itself may open due to a slight impact or vibration due to the wind even if it is closed, and the user intends to close the sliding door. In fact, it may be opened by rebound of the sliding door itself. And in a conspicuous environment, a situation where the sliding door is left unattended with a slight opening may induce theft, and the sliding door is unlocked while the storage is unattended. Even if it is for a short time, it is not preferable for crime prevention.

  However, when an operator enters / exits an object into / out of the storage room while holding the object or continuously, it is difficult or complicated to lock and unlock the sliding door using a key. There may be a situation where the storage door is unavoidably left unattended even for a short time. Therefore, in addition to the present locking / unlocking with a key operation, a lock that allows a temporary locking / unlocking that can be performed with one touch without requiring a key operation is used for a sliding door of a storeroom (see Patent Document 1). That is, in the storeroom using this lock, it is possible to achieve both high crime prevention performance and operability by keeping the sliding door locked during the night time and the like, and using the temporary unlocking during use. .

  Here, the present locking / unlocking and temporary locking / unlocking in Patent Document 1 uses a latch that protrudes and protrudes from the side surface of the lock case provided on the sliding door, and a receiving metal that is provided on the other party's sliding door or column and can latch the latch. The two are different in that they are common in that they are locked and unlocked, and temporary locking and unlocking is impossible when the key is locked and temporary locking and unlocking is possible when the key is unlocked.

Japanese Patent No. 3647742

  By the way, although the storage is often used only during the day because of the ease of work and the security that comes from the brightness, the interior of the storage is relatively dark even during the day, so you can work in the storage. For example, it is conceivable that a child is temporarily locked from the outside due to mischief or accidentally locked without knowing that there is a person in the storage. In this case, a person trapped in the storeroom may lose sight of the lock due to its darkness, and may not be able to perform the unlocking operation and may not be able to leave the storeroom by himself. There is.

  The present invention has been made in view of the above circumstances, and its purpose is to provide a lock capable of easily and reliably performing an unlocking operation of a sliding door or the like necessary to go outside when confined in a dark room. It is to provide.

To achieve the above object, tablets according to the present invention, an outdoor side operation unit for performing an unlocking operation from the outdoor side, the indoor-side or et unlocking only when it is locking operation by the outdoor-side operating portion An indoor side operation unit configured to be operable, a light receiving unit provided on the outdoor side, and a light introducing unit that introduces light received by the light receiving unit into the room, the light introducing unit being used for the indoor side operation It is characterized in that it is provided in the vicinity of the section itself or the indoor side operation section (claim 1).

Further, in the present invention, it is tried pinches before SL indoor side operation unit slides over the locking position and the unlocking position, barrier to break off contact for sliding the locking position relative to the knob Mi in unlocked position the providing tablet according to Oh Ru claim 1 provided (claim 2).

According to the first and second aspects of the invention, it is possible to obtain a lock capable of easily and reliably performing an unlocking operation of a sliding door or the like necessary for exiting the room when confined in a dark room.

  That is, in the invention according to claim 1, during the daytime, even in a dark room compared to the outdoors, it is easy to unlock by operating the indoor side operation unit relying on the light introduced from the light introduction unit. As a result, accidents such as being trapped in the room can be reliably prevented.

In addition, the invention according to claims 1 and 2 provides the following effects. That is, when the allow all of the locking and unlocking operations and the temporary unlocking operation from the room is the room is dark and unlocking operation becomes very difficult, in the invention according to claim 1, 2, room Since only the unlocking operation by the indoor side operation unit can be performed, the unlocking operation is simple and the accident can be prevented more effectively.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Here, FIG. 1 is a perspective view schematically showing a configuration of a main part of a sliding door provided with a lock according to an embodiment of the present invention, and FIG. 2 is a longitudinal section schematically showing a configuration of a locked state of the lock. FIG. 3, FIG. 3 is a partially transparent front view schematically showing the configuration of the lock in a locked state, FIG. 4 is a rear view schematically showing the configuration of the lock in an unlocked state, and FIGS. 5 (A) and 5 (B). FIG. 6A is a rear view and a longitudinal sectional view schematically showing the configuration of the main part of the lock in the temporarily locked state, and FIGS. 6A and 6B are diagrams schematically showing the configuration of the main part of the lock in the temporarily unlocked state. FIG. 7 and FIG. 8 are partial perspective front views schematically showing the structure of the lock in a temporarily unlocked state and a temporarily locked state, and FIGS. 9 and 10 are the unlocked states of the lock. It is a partial see-through front view schematically showing the configuration in the locked state.

  First, as shown in FIG. 1, the lock according to the present embodiment is attached to a sliding door 1 of an assembly house such as a storeroom, and a receiving metal fitting 3 is provided on the counterpart sliding door 2. In the present embodiment, the lock and the metal fitting 3 are provided on the sliding doors 1 and 2, but either one may be provided on a pillar instead of the sliding door.

  As shown in FIGS. 1 and 2, the lock includes a decorative cover 4 on the outdoor surface side of the sliding door 1, and an operation lever is provided from an opening 4 a having a substantially rectangular shape in front view provided at a lower portion of the decorative cover 4. A rotating body (cylinder) 6 having a key groove 6a on the front surface is opened from a substantially circular opening 4b that is exposed to the outside of the room in a state where 5 is slidable up and down and is provided on the top of the decorative cover 4. Exposed outside.

  Here, the operating lever 5 is for temporarily locking and unlocking the sliding doors 1 and 2, and when the operating lever 5 is moved up and down, the operating lever 5 can be hooked on the metal fitting 3 and is a latch 7 made of, for example, a sheet metal material. Temporary locking and unlocking can be achieved by moving the operating lever 5 up and down with the sliding doors 1 and 2 closed (see FIG. 1 and FIG. 2).

  The rotating body 6 is for locking and unlocking the sliding doors 1 and 2. When the key K (see FIG. 2) is inserted into the key groove 6 a of the rotating body 6 and is rotated, the latch 7 is moved to the sliding door. 1 can be locked and unlocked by rotating the key K with the sliding doors 1 and 2 closed and the sliding doors 1 and 2 closed.

  In other words, the lock includes the operation lever 5 and the rotating body 6 as an outdoor operation unit for performing the locking / unlocking operation from the outdoor side. Locking / unlocking is common in that the latch 7 is moved in and out to the side of the sliding door 1 for locking / unlocking, and the latching / unlocking of the latch 3 is performed. Locking is not possible, and is different in that temporary unlocking is possible when this unlocking is performed.

  On the other hand, as shown in FIGS. 2 to 4, the lock includes a lock case 8 on the indoor surface side of the sliding door 1. As shown in FIG. 3, the lock case 8 includes a back wall 8 a, left and right walls 8 b, 8c and bottom wall 8d, there are no walls on the front side and the upper side, and the decorative cover 4 is mounted on the front side. A notch 8e is provided in the center of the front portion of the left wall 8b so as not to hinder the operation (rotation) of the latch 7.

  As shown in FIGS. 2, 4, 5 (A) and 5 (B), the back wall 8 a of the lock case 8 has an upper back wall portion 9 having a flat back surface and a back surface in order from the top. A curved wall portion 10 that is curved so as to be deeper toward the lower side, and a lower back wall portion 11 that has a flat back surface and has a step portion 11a at a boundary portion between the curved wall portion 10 and the curved wall portion 10. An opening 12 having a substantially rectangular shape in rear view is formed from the lower part to the upper part of the lower back wall part 11. The knob 13 is exposed to the indoor side in a state where the knob 13 is slidable up and down, and the knob 13 protrudes rearward (indoor side) from the back surface of the lower back wall portion 11. It is configured not to.

  Here, as shown in FIG. 2, FIG. 5 (B) and FIG. 6 (B), the knob 13 is formed integrally with the operation lever 5, and is operated for temporary locking and unlocking as described above. When the lever 5 is moved up and down, as shown in FIGS. 5A and 5B and FIGS. 6A and 6B, the knob 13 also moves up and down.

  However, the operation lever 5 can be moved up and down (temporary locking / unlocking), whereas the knob 13 is moved from the locking position shown in FIGS. 5 (A) and 5 (B) to FIGS. Only a temporary unlocking operation that slides (downward) to the unlocking position shown in B) is possible. Specifically, as shown in FIGS. 2 and 4 to 6, the structure is provided with a recessed portion 11 b for receiving the knob 13 at the center of the step portion 11 a of the lower back wall portion 11. The knob 13 in the unlocked position is surrounded by the recessed portion 11b on both the left and right sides and the lower three sides, so that the left and right sides and the lower surface of the knob 13 cannot be touched. In other words, the lower back wall portion 11 having the recessed portion 11b serves as a barrier that prevents contact for sliding (upward movement) to the locking position with respect to the knob 13 in the unlocking position.

  In short, the lock is provided with the knob 13 as an indoor side operation unit for performing an unlocking operation from the indoor side, and locking (temporary locking and main locking) operation by the knob 13 is impossible. The unlocking operation that can be performed by the knob 13 is only a temporary unlocking operation, and this unlocking operation is impossible.

  Next, a specific structure of the lock for performing the above-described temporary locking and unlocking will be described. First, as shown in FIGS. 2 and 3, a frame-structured shifter 14 is accommodated in the lock case 8 so as to be slidable in the vertical direction. As shown in FIG. A head 15 protruding above the case 8, two hanging parts 16, 17 hanging from the left and right of the head 15, and a bridge 18 constructed between the lower parts of the two hanging parts 16, 17 are provided. . The operation lever 5 and the knob 13 are connected to the front and rear of the bridge 18. Here, since the shifter 14 is arranged along the back wall 8a of the lock case 8, the hanging portion 16 of the shifter 14 closes the inside of the notch 8e of the left wall 8b of the lock case 8, and the latch 7 There is no impediment to rotation.

  Since the head 15 of the shifter 14 moves up and down together with the knob 13 and protrudes (exposes) above the lock case 8, theoretically, the head 15 can be moved up and down. Temporary locking and unlocking can be performed. However, as shown in FIG. 3, the back view of the head 15 has a trapezoidal shape or a mountain shape that becomes thinner toward the upper side, and the head 15 has a structure that is difficult to grasp with a hand or a finger. Can be pushed down (temporary unlocking operation), but a lifting operation (temporary locking operation) that needs to hold the head 15 is impossible. That is, similarly to the knob 13, the head 15 corresponds to an indoor operation unit for performing an unlocking operation from the indoor side, and locking (temporary locking and permanent locking) operation by the head 15 is impossible. The unlocking operation that can be performed by the head 15 is only a temporary unlocking operation, and this unlocking operation is impossible.

  Further, the entire shifter 14 having the operation lever 5 and the knob 13 is formed of a light-transmitting member such as a transparent or translucent synthetic resin.

  As shown in FIGS. 2 and 3, the latch 7 is rotatably supported on the back wall 8 a of the lock case 8 by a support shaft 19. As shown in FIGS. 2 and 3, a protrusion 20 is provided on the back surface of the latch 7, and this protrusion 20 can be engaged with two locking claws 21 and 22 provided on the hanging portion 16 of the shifter 14. It has become. Further, as shown in FIGS. 2 and 3, convex portions 23 and 24 are provided at appropriate positions on the back surface of the latch 7 and the front surface of the back wall 8 a of the lock case 8, and a helical spring that hangs on these convex portions 23 and 24. 25 is hung.

  Then, the operation | movement at the time of temporary locking / unlocking of the lock | rock provided with the said structure is demonstrated. First, as shown in FIG. 7, when the lock is in a temporarily unlocked state, the shifter 14 having the operation lever 5 and the knob 13 is at the lowest position in the sliding range, and the latch 7 is the helical spring 25. Therefore, it is urged to stop at the retracted position shown in FIG.

  When the operating lever 5 is slid from the unlocked position (see FIG. 7) to the locked position (see FIG. 8) for temporary locking, the shifter 14 integrated with the operating lever 5 also slides upward. At this time, the locking claw 22 below the shifter 14 pushes up the protrusion 20 of the latch 7, and the latch 7 rotates about 90 degrees clockwise around the support shaft 19 in FIG.

  When the lock is temporarily locked by the above operation, as shown in FIG. 8, the shifter 14 is positioned at the uppermost position in the sliding range, and the latch 7 is moved to the advanced position shown in FIG. 8 by the helical spring 25. It will be energized to stop.

  Conversely, when the operating lever 5 or the knob 13 is slid from the locking position (see FIG. 8) to the unlocking position (see FIG. 7) for temporary unlocking, the shifter 14 integrated with the operating lever 5 is also moved. Slide down. At this time, the locking claw 21 above the shifter 14 pushes down the projection 20 of the latch 7, and the latch 7 rotates about 90 degrees counterclockwise in FIG. It returns to the temporary unlocking state shown.

  Next, a specific structure of the lock for performing the above-described locking and unlocking will be described. In addition, this structure for locking / unlocking uses the above-described structure for temporary locking / unlocking in part, and redundant description of the members already described is omitted below.

  First, as shown by a two-dot chain line in FIG. 3, a support member 26 is fixed to the front surface of the upper portion of the back wall 8a of the lock case 8 with screws, and the rotating member 6 (see FIG. 3) is supported by the support member 26. ) Is supported. Here, the support member 26 supports the rotating body 6 so that the rotating body 6 can be rotated only by the key K inserted in the key groove 6a.

  As shown in FIG. 3, a slider 27 is accommodated along the front surface of the back wall 8a of the lock case 8, and the slider 27 is guided to guides 28 and 29 provided on the back wall 8a. It is possible to slide up and down. Further, as shown in FIG. 2, a gap is provided between the rotating body 6 supported by the support member 26 and the back wall 8a of the lock case 8 so that the slider 27 can be inserted vertically. In addition, as shown in FIGS. 2 and 3, a locking protrusion 6 b that locks in a horizontally long groove 27 a provided on the upper portion of the slider 27 is provided on the back surface of the rotating body 6.

  On the other hand, as shown in detail in the enlarged view of FIG. 3, a hollow block 30 is provided on the lower left side of the slider 27, and the hollow block 30 holds a sliding pin 31 and a pin guide 32. Is. More specifically, the sliding pin 31 has a small-diameter portion 31 a and a large-diameter portion 31 b, and the pin guide 32 is a substantially cylindrical member with one end closed, and the sliding pin 31 is placed inside the pin guide 32. The large diameter part 31b is inserted. The hollow block 30 is provided with a small hole 30a through which the small diameter portion 31a of the sliding pin 31 is inserted, and a large hole 30b into which the pin guide 32 is inserted, and the sliding pin 31 is inserted into the large hole 30b. The first spring 33 for urging the large-diameter portion 31b in the right direction in FIG. 3 is accommodated. Further, a second spring 34 for urging the large diameter portion 31b of the pin 31 leftward in FIG. 3 is provided in the pin guide 32. The spring constant of the second spring is larger than the spring constant of the first spring. It has become big.

  On the other hand, as shown in FIG. 3, a sliding cam 35 is pivotally supported on the lower right side of the slider 27 and abuts against the sliding cam 35 when the slider 27 slides. A guide 36 is provided on the front surface of the back wall 8 a of the lock case 8.

  Further, as shown in FIGS. 9 and 10, the hanging portion 16 of the shifter 14 is provided with a regulating portion 37 that regulates the movement of the sliding pin 31, and the sliding pin 37 is provided at the center of the regulating portion 37. A cutout portion 37 a that allows 31 to advance is formed.

  Then, the operation | movement at the time of this locking / unlocking of the lock | rock provided with the said structure is demonstrated. First, the final unlocked state of the lock is shown in FIG. 9, but the final unlocked state and the temporary unlocked state of the lock are the same, and the shifter 14 and the latch 7 are in the same state as shown in FIG. . As shown in FIG. 9, when the lock is in the fully unlocked state, the rotating body 6 is in a state where the locking projection 6 b is at the lowest position, and the guide 36 abuts against the sliding cam 35. Instead, the sliding pin 31 is housed in the hollow block 30.

  Then, when the joint key K inserted into the keyway 6a for this locking is rotated, for example, about 180 degrees clockwise, the rotating body 6 also rotates about 180 degrees in the same direction, as shown in FIG. The locking projection 6b moves to the uppermost position. With this movement, the slider 27 having the groove 27a that engages with the engaging projection 6b slides upward. With this sliding, the guide 36 abuts against the sliding cam 35, which is shown in FIG. And rotate clockwise. Further, since the sliding cam 35 urges the pin guide 32 to the left in FIG. 9, the sliding pin 31 advances into the notch 37a of the restricting portion 37 as shown in FIG. The entire shifter 14 having the restricting portion 37 engaged with the portion 37 is lifted.

  When the lock is brought into the final locked state by the above operation, as shown in FIG. 10, the shifter 14 is positioned at the uppermost position in the sliding range, and the latch 7 is moved to the advanced position shown in FIG. It will be energized to stop. In this locked state, the restricting portion 37 provided on the shifter 14 is not lowered due to the locking of the sliding pin 31, so that the operation lever 5 and the knob 13 that are integrated with the shifter 14 are pushed down. That is, temporary unlocking operation is impossible.

  Conversely, when the key K inserted in the keyway 6a for the unlocking is rotated, for example, approximately 180 degrees counterclockwise, the rotating body 6 is also rotated approximately 180 degrees in the same direction, as shown in FIG. Then, the locking projection 6b of the rotating body 6 moves to the lowest position. Then, along with this movement, the slider 27 having the groove 27a that engages with the engaging projection 6b slides downward. With this sliding, the sliding pin 31 moves the entire shifter 14 having the restricting portion 37. Since the guide 36 is separated from the sliding cam 35 after being pushed down, the urging of the pin guide 32 by the sliding cam 35 is released, and the lock returns to the fully unlocked state shown in FIG.

  In the lock having the above configuration, since the shifter 14 is formed of a light transmissive member, the operation lever 5 provided on the outdoor side functions as a light receiving portion, and the light received by the shifter 14 at the operation lever 5 The knob 13 functions as a light introducing part for introducing the light into the room. Therefore, during daytime, even if the room is darker than outdoors, it can be easily unlocked by operating the knob 13 with the help of the light introduced from the knob 13, so that it can be locked in the room. Accidents such as being accidentally prevented can be reliably prevented.

  Further, in the lock having the above-described configuration, since only the temporary unlocking operation using the knob 13 or the head 15 of the shifter 14 can be performed from the room, the unlocking operation is simple. Accidents can be prevented more effectively.

  In addition, the lock | rock of this invention is not restricted to said embodiment, It can implement in various deformation | transformation. For example, in the above embodiment, only the knob 13 is provided as the light introducing part, but a light introducing part may be provided separately in the vicinity of the knob 13. That is, the lock is provided with a light receiving portion provided outside the room and a light introducing portion that introduces light received by the light receiving portion into the room, and the light introducing portion is connected to the indoor side operation unit itself or the indoor side operation. As long as it is provided in the vicinity of the unit, various configurations of the light receiving unit and the light introducing unit may be employed. As an example, it is possible to form the entire decorative cover 4 and the lock case 8 with a light-transmitting member.

It is a perspective view which shows roughly the structure of the principal part of the sliding door which provided the lock | rock which concerns on one embodiment of this invention. It is a longitudinal cross-sectional view which shows schematically the structure of the locked state of the said lock | rock. It is a partially transparent front view which shows the structure of the locked state of the said lock | rock schematically. It is a rear view which shows roughly the structure of the unlocked state of the said lock | rock. (A) And (B) is the rear view and longitudinal cross-sectional view which show schematically the structure of the principal part of the said lock | rock of a temporary locking state. (A) And (B) is the rear view and longitudinal cross-sectional view which show schematically the structure of the principal part of the said lock | rock of a temporary unlocking state. It is a partial see-through | perspective front view which shows schematically the structure of the temporary unlocking state of the said lock | rock. It is a partially transparent front view which shows the structure of the temporary locking state of the said lock | rock schematically. It is a partial see-through | perspective front view which shows schematically the structure of the said unlocking state of the said lock | rock. It is a partial see-through | perspective front view which shows the structure of this lock | rock state of the said lock | rock schematically.

1 Sliding door 5 Operation lever 6 Rotating body 13 Knob 14 Shifter

Claims (2)

An outdoor-side operation unit for performing the unlocking operation from the outdoor side, the indoor-side or et unlocking operably configured indoor side operation unit only when it is locking operation by the outdoor side operation unit, the outdoor side And a light introducing portion that introduces light received by the light receiving portion into the room, and the light introducing portion is provided near the indoor side operation unit itself or in the indoor side operation unit Lock.   2. A knob that slides between the locking position and the unlocking position of the indoor-side operation section, and a barrier is provided to cut off the contact for sliding the locking knob to the locking position at the unlocking position. Tablet as described in 1.

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