JP5510922B2 - Dial lock unit - Google Patents

Description

  The present invention relates to a dial lock unit that can be easily attached to a door of a housing, can reduce the need for processing on the housing side, and is excellent in usability.

  Generally, when a dial lock unit is incorporated into a door of a locker or the like that transmits a handle operation to a latch via a transmission shaft, the dial lock unit is associated with the handle or the transmission shaft, and the handle or transmission shaft is verified by dial verification. It is usual that the handle and the transmission shaft are constrained by operating a different operation part when the door is closed, and the dial is reset.

  However, if this is done, large-scale processing and additional functions are required for the housing including the door, leading to an increase in cost. In addition, after the door is closed, it cannot be locked unless the operation unit is operated. Furthermore, since the dial collation state continues until the door is closed, it is not preferable in terms of security.

  As a means for solving such a problem, a dial lock unit as shown in Patent Literature 1 has been proposed.

  In this case, the output member is protruded from one end side of the casing, and the lock is interlocked with the output member near the edge of the door on the opposite side of the door, so that the lock is automatically released when the dial is collated. It is configured to move. In addition, a reaction force mechanism is incorporated to reset the dial lock using the opening operation of the door, and the operating rod that is the sensing portion is projected from the other end side of the casing, and this operating rod is attached to the hanging side of the door. The dial lock is reset by the projecting action of the operating rod when it opens against the housing near the edge. Further, in order to move the output member to the locked position using the closing operation of the door, the operating rod and the output member are associated with each other so that the output member moves from the unlocked position to the locked position in conjunction with the pushing operation of the operating rod. It is configured.

  As a result, a function has been realized in which a dial lock unit is attached while preventing large-scale incorporation into the housing, the door is automatically locked when the door is closed, and the dial verification state is reset when the door is opened. ing.

JP 2009-167695 A

  However, if a lock or the like is attached to the tip of the output member via a support shaft or the like, there is a problem that assembly errors are likely to occur.

  In addition, since the engaging part protrudes from one end side of the casing and the displacement part protrudes from the other end side of the casing, the output member and the lock are assembled between the edge part on the hanging side of the door and the housing. In addition, the operating rod must be assembled between the edge of the door on the opposite side of the door and the housing, and the timing at which the output member operates and the timing at which the operating rod operates can be adjusted. Therefore, there is a problem that adjustment is difficult and accuracy is difficult to obtain because it has to be performed on the anti-hanging side.

  In addition, although it is locked only by closing, the output member, and thus the lock, is operated in conjunction with the displacement when the operating rod is pushed in. In the process of engaging the lock with the mating portion, there is a problem that interference with the surroundings of the housing is likely to occur, and the timing is difficult.

  An object of the present invention is to effectively solve these problems, and to provide a dial lock unit that can be easily attached to a door and the like, can reduce the necessity of processing on the housing side as much as possible, and is excellent in usability. .

  In order to achieve this object, the present invention takes the following measures.

That is, the dial lock unit according to the present invention has an operation unit that can be moved between a closed position and an open position by accepting an external operation, an arrangement of the dial by accepting an external operation, A dial lock body having a function of detecting a collation state, an engagement portion movable in conjunction with the operation portion between a locked position and an unlocked position, and a position from the closed position to the open position of the operation section. A reaction force mechanism that accumulates a repulsive force to directly or indirectly apply a return reaction force to the engaging portion as it moves, and a predetermined operation that has a displacement portion and is displaced by being pushed in from the outside. And detecting means for detecting the position in association with the casing, of which at least the engaging part and the displacement part are arranged on one end side of the casing, and the displacement part is pushed in When the operating part is in the open position, the reaction force mechanism accumulates the repulsive force and holds the engaging part in the unlocked position, and when the displacement part is pushed in, the holding of the engaging part is released. It is configured to move to the locking position by the repulsive force of the reaction force mechanism.

  Even with this configuration, it is possible to attach the dial lock unit while suppressing the large-scale incorporation into the case that is the subject of application compared to conventional general ones. The automatic locking function at the time of closing is also ensured.

  In addition, since the engaging portion directly protrudes from the casing, a link or the like is not required in the middle, and a factor that causes an assembly error can be avoided. The displacement part also projects directly from the same end of the casing, so when applied to a storage device that opens and closes the opening of the casing with a door, only the edge of the door on the side opposite to the suspension side is The timing when the displacement part is pushed in from the outside when it is closed to the housing and the engaging part is engaged with a part of the housing at the closed position can be assembled. This makes it easy to adjust the accuracy and makes it easy to achieve accuracy. Furthermore, since the engaging portion moves to the locked position only when the displacement portion receives pressure, it can be operated separately from the door operation, and the housing side slit can be surely captured when the opening and closing member is closed. It is possible to engage with the engaged portion such as the like without interference.

  Furthermore, in order to ensure the convenience and security of the operation when the opening / closing member to be applied is opened, the operation part can be unlocked only when the dial lock body is collated, and the operation part is unlocked. The engagement unit is configured to move to the unlocking position and reset the dial lock body in conjunction with the operation unit, and the operation unit has a function of accepting an external operation in a direction different from the operation in the opening / closing direction. desirable.

In order to further improve the operability, after the engaging portion is interlocked with the operation up to the open position of the operating portion, the guiding portion provided on the opening / closing member is separated from the engaging portion. It is effective to be configured to be pulled up toward the unlocking position independently by being pulled in within a predetermined range of free movement.

  In order to reduce the assembly error to the applicable switchgear, it is effective that a latch is further attached to one end side of the casing, especially when the latch receives an external force in the displacement direction of the displacement part. It is preferable to be provided so as to be immersive against elasticity.

  In order to accurately prevent interference between the engaging portion and the casing that is the application target, the displacement portion may be incorporated so as to detect an operation in a direction orthogonal to the operating direction of the engaging portion. It is valid.

  If the dial lock unit of the present invention is attached to an opening / closing member such as a door, the opening / closing device can be manufactured at a low cost with as few man-hours as possible, and the usability of the opening / closing device itself when opening and closing the opening / closing member is also improved. It becomes possible to improve effectively.

  Since the switchgear of the present invention has the above-described configuration, it can be easily attached to a housing such as a storage device that is an application target, the necessity of processing on the housing side can be reduced, and accuracy can be easily obtained. It can be used as an excellent dial lock unit that can reduce man-hours and costs related to processing and assembly, and can reduce the operating procedures related to opening and closing of storage devices etc. as much as possible to improve usability. .

The perspective view which shows the opening / closing apparatus to which the dial lock unit which concerns on one Embodiment of this invention is applied in a closed state. The perspective view which shows the opening / closing device in a door open state. The front view which shows the dial lock unit which concerns on one Embodiment of this invention in the state which removed the cover. The perspective view of the dial lock unit. The perspective view which shows the 1st relevant part which comprises the dial lock unit. The perspective view which shows the 1st, 2nd related part which comprises the dial lock unit. Operation | movement explanatory drawing of the detection means and restraint means which comprise the dial lock unit. The perspective view which shows the relationship between the operation part and engagement part which comprise the dial lock unit. The perspective view which shows the reset function of the dial lock unit. The perspective view which shows the reset function of the dial lock unit. Operation | movement explanatory drawing corresponding to FIG. 3 of the dial lock unit. Operation | movement explanatory drawing corresponding to FIG.3 and FIG.11 of the dial lock unit. Action | operation explanatory drawing of the engaging part which comprises the dial lock unit.

  Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

  1 and 2 show the opening / closing device of the present embodiment used as a storage device such as a locker. This opening / closing device has a door 2 as an opening / closing member at a position for opening and closing the storage space of the housing 1, and a dial lock unit 3 is incorporated in the door 2 and an engaged portion 11 is provided on the housing 1 side. Provided.

  The door 2 is supported by the side plate 12 of the housing 1 through the hinge mechanism H so as to be able to open and close the edge portion 2a on the suspension side, and faces the front of the side plate 12 located on the opposite side of the hinge H toward the front. When the door 2 is closed, when the door 2 is closed, the thickness portion of the edge 2b on the side opposite to the suspension side of the door 2 is accommodated in the recessed step 12a. Yes.

  The dial lock unit 3 is integrally incorporated in a casing 30 that is covered with a cover 30k, positions the operation unit 31 and the dial lock body 32 on the front surface of the door 2, and is locked to the edge 2b on the anti-suspended side. The engaging part 33 and the like are positioned. This operation part 31 has a knob part 31a that can be picked and rotated by a finger, and also has a handle function that allows the door 2 to be opened and opened while being picked. The engagement between the engaging portion 21 and the engaged portion 11 is released by picking and rotating approximately 60 degrees clockwise as viewed from the front (unlocking direction).

  Specifically, the engaging portion 33 is made of steel or the like and has a substantially inverted L-shaped plate shape (sickle shape) when viewed from the front. The engaging portion 33 is provided on one end side of the casing 30 and has a tip bent downward. The claw portion 33a is formed. And it arrange | positions so that it may rotate up and down, protruding and retracting sideways via the slit 2c provided in the edge 2b of the door 2 anti-hanging side. The engaged portion 11 is provided at a position corresponding to an operation region in which the engaging portion 21 protrudes and retracts on a side surface 12y orthogonal to the contact surface 12x located in the inner portion of the step portion 12a formed in the housing 1. It has a slit shape. The middle of the engaging portion 33 is bent in the thickness direction, and the claw portion 33a is disposed at a position corresponding to the slit 2c.

  The basic functions of the switchgear will be briefly described above. The dial 31a of the operation unit 31 is made operable by collating the dial lock body 32 provided on the door 2 as shown by the arrow S1 in FIG. As shown by the arrow S2, the operation of turning the knob 31a of the operation part from the closed position P1 to the open position P2 resets the collation state of the dial lock body 32 and moves the engaging part 33 from the lock position Q1 to the unlock position Q2. The door 2 can be opened while the operation part 31 and the engaging part 33 are held at the open position P2 and the unlocked position Q2 by continuously pulling the knob 31a toward the front as indicated by the arrow S3. is there. Further, when the door 2 is closed, the operation portion 31 and the engaging portion 33 are moved to the closed position P1 and the locking position Q1 only by pushing the door 2, and the engaging portion 33 is engaged with the engaged portion 11 to open the door. 2 can be held in a closed position with respect to the housing 1 and the operation unit 31 can be locked.

  Hereinafter, after detailed description of the configuration and the like of the dial lock unit 3 that realizes such a function, the configuration and the like of the entire opening / closing device incorporating the dial lock unit 3 will be described.

  In addition to the operation portion 31, the dial lock body 32, and the engagement portion 33, the dial lock unit 3 applies return reaction force to the operation portion 31 and the engagement portion 33 as shown in FIGS. As shown in FIG. 3, FIG. 4, FIG. 5 and the like, the reaction mechanism A to be applied, the first related part B that enables the operation part 31 to be unlocked only when the dial lock body 32 collates, FIG. As shown in FIGS. 4 and 6 and the like, the second related part C that resets the collation state of the dial lock body 32 in conjunction with the unlocking operation of the operation part 31, the door 2 as shown in FIGS. Detecting means D for detecting whether or not is in the closed position, and as shown in FIG. 7 and the like, a restraining means E for restraining the operating part 31 together with the engaging part 33 when the operating part 31 is moved to the open position. It is provided in the casing 30.

  As shown in FIG. 8, the operation part 31 has a columnar interlocking part 31a that integrally rotates on the back side, and a rectangular parallelepiped protrusion 31b is located on the rear end face thereof, and is moved backward to a position displaced from the axis. A pin 32c extending toward the top is formed.

On the other hand, the engagement portion 33 is formed with a hole 33b having an opening shape necessary for the protrusion 31b to rotate within a predetermined range at the base end. The protrusion 31b of the portion 31a is fitted so as to rotate integrally under a predetermined play. The outer periphery of the base end of the engaging portion forms a circumferential surface around the rotation center O, and two of them are provided with a first guided portion 81a and a second guided portion 81b that form recesses. 3, on the bottom wall 30c side of the casing 30 in FIG. 3, a guiding portion 82 is provided as a convex portion for drawing the guided portions 81a and 81b as shown in FIG. The guiding portion 82 is a separate body from the engaging portion 33 and is configured by a leaf spring that is an elastic body. That is, when the operating portion 31 is in the closed position P1 shown in FIG. 13A and the engaging portion 33 is in the locking position Q1, the first guided portion 81a is fitted into the guiding portion 82, and the operating portion 31 is shown in FIG. When the engaging portion 33 is moved to the intermediate position Q3 by operating to the open position P2 shown in FIG. 13 (b), the second guided portion 81b arrives at a position where the action of the guiding portion 82 is received. Is compressed on the outer periphery of the base end of the engaging portion 31, and the engaging portion 33 is further a concave portion and the second guided portion 81b is a convex portion by a restoring operation when the accumulated elastic force is released. It is configured to move to the unlocking position Q2 shown in FIG. That is, during the movement of the operating portion 31 from the closed position P1 to the open position P2 due to play between the hole 33b provided at the proximal end of the engaging portion 33 and the protruding portion 31b at the proximal end of the operating portion 31. The engagement portion 33 follows the locking position Q1 → intermediate position Q3 as an operation region interlocked with the operation portion 33 on the delay side, and thereafter, the engagement portion 33 operates as an operation region not interlocked with the operation portion 31 with respect to the operation portion 31. This causes a relative movement that jumps from the delay side in FIG. 13 (b) to the advance side in FIG. 13 (c).

  As shown in FIGS. 3 to 5 and the like, the dial lock body 32 includes a dial row 32a, a collation detection unit 32b that detects a collation state of the dial row 32a and causes displacement, a dial shaft 32c that resets the dial, And a personal identification number setting unit 32d (see FIG. 4) for setting a personal identification number.

  In the dial row 32a, four sets of dials 32a1, an operation disk 32a2, and a lock gear 32a3 are arranged along the dial shaft 32c. The dial 32a1 is numbered from 0 to 9 in the circumferential direction, and the operation disc 32a2 receives the operation force and rotates together with the dial 32a1. The lock gear 32a3 rotates integrally with the dial 32a1 and the operation disc 32a2 at the set position, and a recess 32ay is formed at one place on each land (outer peripheral surface) 32ax of each lock gear 32a3. It is. When the recesses 32ay are aligned (in the state shown in FIG. 11), the number that appears on the front surface of the door 2 is the personal identification number ("1000" in this embodiment).

  The collation detection unit 32b includes a sense cam 32b1 disposed to face the dial row 32a along the bottom wall 30c of the casing, and a claw-shaped determination unit 32b2 protruding from the sense cam 32b1 toward the recess 32ay of each lock gear 32a1. And a sense cam spring 32b3 for pressing the sense cam 32b1 toward the lock gear 32a1.

  As shown in FIGS. 3 and 5, if even one determination unit 32b2 is not opposed to the recess 32ay, the determination unit 32b2 is held at a position where it rides over the land 32ax, and the determination unit of the other lock gear 32a3. 32b2 cannot enter the recess 32ay, but the dial 32a1 moves in the direction indicated by the arrow L in FIG. 5, and the four determination portions 32b2 of the sense cam 32b1 simultaneously face the recess 32ay as shown in FIG. In some cases, the determination portion 32b2 enters the recess 32ay all at once by the sense cam spring 32b3, causing the sense cam 32b1 to be displaced in a direction perpendicular to the longitudinal direction (upward in the figure).

  As shown in FIG. 9, the dial shaft 32c passes through the shaft centers of the four dials 32a1 and can move in the coaxial direction, and is provided with protrusions 32c1 on the outer periphery at a pitch corresponding to the distance between the dials 32a1. On the other hand, inside the dial 32a1, a slope-shaped cam surface 32az like a bamboo cut is formed so as to rotate integrally with the dial 32a1, and the dial shaft 32c is formed as shown in FIGS. When the dial 32a1 moves deeply into the dial 32a1, a reset action is performed to align the dial 32a1 with a predetermined rotational phase via the cam surface 32az. In the present embodiment, “0000” shown in FIG. 3 is set to a reset state, which is referred to as a so-called zero reset.

  The code number setting section 32d shown in FIG. 4 releases the set state in which the lock lever 32a3 and the dial 32a1 shown in FIG. And a switching mechanism (not shown) for switching to a setting mode capable of individual rotation. That is, from the state of FIG. 11 in which the collation detection unit 32b detects the collation state and generates a displacement, the integral rotation state of the lock gear 32a3 and the dial 32a1 is once released and the dial arrangement is changed to, for example, “2000” If the slide lever 32d1 is returned to the set state again, the collation detection unit 32b has detected the collation state at "2000", and this becomes a new code number. The slide lever 32d1 is exposed to the cover 30k side shown in FIG.

  The reaction force mechanism A shown in FIGS. 3, 4, and 6 includes a return bar 41 and a return spring 42. The return bar 41 is a plate-like member arranged along the upper wall 30a of the casing 30, and has a pair of bent pieces 41a in part, and the pin 31b of the interlocking portion 31a is interposed between the bent pieces 41a and 41a. The interior of the casing 30 can be moved back and forth in conjunction with the rotation of the interlocking portion 31a. The return spring 42 is in the form of a coil spring, is elastically placed between the other end of the return bar 31 and the corresponding inner wall 30b of the casing 30, and is closed to the operating portion 31 via the return bar 41 by being compressed. Accumulate operating force to push back in the position direction (left side of front paper).

  As shown in FIG. 4 to FIG. 6 and the like, the first related part B enables the unlocking operation of the operation part 31 only when the dial lock body 32 collates, as shown in FIGS. 4 to 6 and the like. The operation unit 31 is switched between an operable state and an operation prohibited state according to the collation state of the dial lock body 32. More specifically, it has an operating rod 51 that moves up and down in conjunction with the displacement of the verification detector 32b, and a downward claw portion 52a that is disposed at the operating end of the operating rod 51 so as to be rotatable around the support shaft m2. A claw member 52, a spring 53 that presses the claw member 52 downward, and an unlocking restriction portion 31x provided so as to be hooked at a corresponding position of the interlocking portion 31a so that the claw portion 52a is selectively engaged. Become. When the collation detection unit 32b shown in FIGS. 3 and 5 is lowered (when the dial lock body 32 is not collated), the operating rod 51 is lowered and the claw portion 52a is engaged with the unlocking regulation unit 31x. The portion 31 is held at the closed position P1 to prohibit the operation toward the open position P2 shown in FIG. 12, and the operating rod 51 is moved when the collation detection unit 32b shown in FIG. Ascending, the engagement between the claw portion 52a and the unlocking restricting portion 31x is released, and the operation portion 31 is allowed to be operated in the opening direction shown in FIGS. Once the operation part 31 is operated, the claw part 52a of the claw member 52 is disengaged from the release restricting part 31x and rides on the circumferential part 31y shown in FIG. 6, so that the claw is kept until the operation part 31 returns to the closed position again. The restriction by the member 52 is not performed.

  Further, the second related part C is configured to reset the collation state of the dial lock body 32 in conjunction with the unlocking operation of the operation part 31, as shown in FIGS. 4 and 6, etc. The operation unit 31 is associated with each other. More specifically, the second related portion C includes the return bar 41 and an intermediate transmission member 43 that links the advance / retreat operation of the return shaft 41 with the advance / retreat operation of the dial shaft 32c. The intermediate transmission member 43 is engaged with a flange-shaped first transmission portion 43a at one end of the dial shaft 32c, and is in a position where the intermediate transmission member 43 crosses and contacts the bent piece 41a located on the side where the return bar 41 is pushed. A second transmission portion 43b having a flange shape is inserted. When the return bar 4 moves in the direction of compressing the return bar spring 42 as shown in FIGS. 11 to 12 as the operation unit 31 is operated in the opening direction, the dial is set via the intermediate transmission member 43. The shaft 32c is pushed into the dial row 32a.

  A return spring 32cx for returning the dial shaft 32c to the protruding position is interposed between the intermediate transmission member 43 and the dial row 32a in a compressed state.

  As shown in FIGS. 2 and 7, etc., the detecting means D detects whether or not the door 2 is in the closed position, and a presser 71 provided on the side surface 12y of the side plate 12 of the housing 1, and the door 2 At one end side of the casing 30 so as to be located in the edge 2b on the opposite side of the suspension, it is attached around the axis m3 parallel to the edge 2b and is rotationally displaced by being pushed into the pressing element 71 in the closed position. It includes a displacement portion 72 and a spring 73 that presses the displacement portion 72 in the direction toward the presser 71. When the door 2 is closed, the displacement portion 72 is pushed into the presser 71 and is indicated by an arrow in FIG. As shown, when the door 2 is released from the housing 1, the displacement portion 72 is pressed against the spring 73 and rotates in the other direction as indicated by an arrow in FIG. 7C. . That is, the displacement part 72 is integrated in the casing 30 so as to detect an operation in a direction orthogonal to the operation direction of the engaging part 11.

  The restraining means E operates the base end as shown in FIG. 7 or the like to restrain the operating unit 31 together with the engaging unit 33 when the operating unit 31 moves to the open position P2 and the door 2 is opened. A claw portion 61 that is rotatably attached around the axis m3 orthogonal to the support shaft m4 of the portion 31 and that goes to the outer periphery of the interlocking portion 31a at the tip, and a spring that presses the claw portion 61 in a direction toward the outer periphery of the interlocking portion 31a 62. The claw portion 61 is formed integrally with the displacement portion 72, and the spring 62 is shared with the spring 73. On the other hand, on the outer periphery of the corresponding interlocking portion 31a, when the operating portion 31 is in the open position P2 and the engaging portion 33 reaches the intermediate position in FIG. As shown in FIG. 13 (c), the first restricting portion 31m is moved to a position where rotation to the side is restrained, and the engaging portion 31 jumps up to the unlocking position Q2 as shown in FIG. 13 (c). When the operation unit 31 is once closed after being opened as shown in c), the restraint of the restraining means E is released, and the position of the operation unit 31 is displaced to the closed position P1 side, FIG. 13 (c) → (d), the engagement portion 33 is stopped at the second unlocking position Q4 by being re-engaged with the claw portion 61 at the second open position P3 of the operation portion 31. A second restricting portion 31n is provided at the position.

  2 is attached to the housing 1 side shown in FIG. 2, the slit 2c is provided in the door 2 and the sickle-like engaging portion 33 is inserted through the dial lock unit 3 in the door 2 state. In this state, the displacement portion 72 of the dial lock unit 3 is disposed at a position facing the pressing member 71 on the housing 1 side.

  At this time, the engaging portion 33 cannot pass through the opening edge 1a of the housing 1 shown in FIG. 1 at the intermediate position Q3 of the engaging portion 33 shown in FIG. The engaging portion 33 moves to the unlocking position Q2 shown in FIG. 13 (c) which can pass through the opening edge 1a for the first time by jumping up by the pulling action between the guide portion 82b and the guided portion 82b. The position of the opening edge 1a in this embodiment is the same as the position of the side surface 12y where the slit 11 is provided, and the condition for the engaging portion 33 to pass through the opening edge 1a and the condition for exiting from the slit 11 are equal.

  Further, in the second open position P3 of the operation unit shown in FIG. 13D, the engaging part 33 is set so as to be still in a position where it can pass through the opening edge 1a of the housing 1.

  When the above configuration is adopted, if the operation on the operation unit 31 is incomplete at the time of unlocking, the opening on the way from the closed position P1 in FIG. 13A to the open position P2 in FIG. Although the situation where it is restrained at the second open position P3 before the position may occur, the engaging portion 33 is held on the delay side with respect to the operation portion 31 and cannot pass through the opening edge 1a of the housing 1 at that time. It is set as follows. On the other hand, as described above, after the operating portion 31 reaches the open position and the engaging portion 33 jumps to the advance side shown in FIG. 13C, the restraint is released and the operating portion 31 is closed. When being restrained again at the second closed position P3 shown in FIG. 13 (d) on the way, the engaging portion 33 is held on the advancing side so that it can pass through the opening edge 1a of the housing 1. It is configured.

  Next, the operation of the entire embodiment will be described including the operation already described in part.

  First, when the dial lock body 32 is in the non-collating state at the closed position shown in the door 2, the detecting means D shown in FIG. 7 (a) detects the closed state of the door 2 and unrestrains the restricting means E. The collation detection unit 32b shown in FIGS. 4 and 5 detects the non-collation state and restrains the operation unit 31 to the closed position P1 via the first related part B. Next, when the dial lock body 32 is collated, the collation detection unit 32b detects the collation state and opens the operation unit 31. Therefore, when the operation unit 31 is picked and rotated as shown in FIGS. 7A to 7B, the return bar 41 of the reaction force mechanism A shown in FIG. 4 moves while accumulating the reaction force. As shown in FIGS. 13A to 13B, the operation unit 31 moves from the closed position P1 to the open position P2, the engaging portion 21 moves from the locked position to the intermediate position Q3, and the return bar shown in FIG. 11 → As shown in FIG. 12, the dial shaft 42c is pushed in via the intermediate transmission portion 43, and the dial row 32a is reset to zero. At the time of such zero reset, the first related part B shown in FIGS. 4 and 5 detects the non-collation state and tries to restrict the operation of the operation part 31, but the nail constituting the first related part B Since the claw portion 52a of the member 52 is disengaged from the release restricting portion 31x shown in FIG. 6 and rides on the circumferential portion 31y, the operation of the operation portion 31 is not restricted at this time. When the operating portion 31 is rotated to the open position P2, the engaging portion 33 first moves to the intermediate position Q3 shown in FIG. 13 (b), and further from there, the guiding portion 81a and the guided portion 81b. As a result, the engaging portion 33 can pass through the opening edge 1a of the housing 1 and the door 2 can be opened. When the operation of the operation unit 31 is insufficient and does not reach the open position P2 (when the operation unit 31 does not reach the position constrained by the restraining means E), the engaging part 33 is not caused to jump up, and the engaging part 33 does not pass through the opening edge of the housing 1 and the door 2 is not opened. After that, when the operation unit 31 is continuously picked and the door 2 is pulled forward as shown by an arrow S3 in FIG. 1, the detection means D opens the door shown in FIGS. 7B to 7C as the door 2 is opened. 2 is detected, the claw portion 61 is moved, the claw portion 61 falls into and engages with the first restricting portion 31m, and the operation portion 31 is restrained to the open position P2. At this time, even if the user releases his hand from the knob 31a of the operation unit 31, the user does not return to the closed position P1.

  When closing the door 2, if the door 2 is operated toward the closed position as indicated by an arrow S4 in FIG. 1, the detection means D is moved to the door shown in FIGS. 7C to 7D when the closed position is reached. 2 is detected, and the claw portion 61 of the restraining means E is moved to the non-restraining position. As a result, the operating portion 31 is moved to the closed position P1 by the reaction force mechanism A as shown in FIGS. 7D to 7A, and the engaging portion 33 is shown in FIGS. 13C to 13A. Move from the unlocking position Q2 to the locking position Q1. At this time, since the dial lock body 32 is in the non-collation state, the claw portion 52a of the first related part B falls into the locking restriction part 31x of the operation part 31 and restricts the operation part 31 to the closed position P1. Next, when the dial lock body 32 is collated and the door 2 is opened, the operation portion 31 starts to rotate before the engaging portion 33 within the range of the guide, so that the relationship between the advance side and the delay side is switched at this time.

  Further, when the door 2 is once closed and forgotten to be inserted or removed, and the opening and closing operation is performed with the operation portion 31 held substantially in the open position, the claw portion 61 of the restraining means E is in the state shown in FIG. Since the restraint of the first restricting portion 31m is once released, the operating portion 31 may be displaced from the open position P2 to the closed position P1 as shown in FIG. 13 (d) by the reaction force from the reaction force mechanism A. However, the claw portion 61 of the restraining means E can be engaged with the second restricting portion 31n again to restrain the operating portion 31 at the second open position P3 of the operating portion 31. Even if the hand is released, the engaging portion 33 is held at the second unlocking position Q4, and even if the door 2 is closed after that, the collision with the opening edge 1a of the housing 1 is prevented.

  As shown in FIG. 2, a latch 30x having a forward slope and a rear slope is applied to the casing 30 of the dial lock unit 3 so as to intersect with each other to form two sides of the triangle. The latch 30x is engaged with the contact surface 12x at the closed position of the door 2, and at this time, the door 2 is brought into close contact with the edge of the contact surface 12x by the external force in the displacement direction of the displacement portion 72. I try to prevent rattling. The latch 30x hits the edge of the contact surface 12x from the front, and is set in a positional relationship where the backward slope passes through while being immersed and a part of the forward slope is caught by the edge and stops. It does not completely wrap around the back of 12.

  As described above, the dial lock unit 3 constituting the opening / closing device of the present embodiment receives the external operation and accepts the external operation and the operation unit 31 that is movable between the closed position P1 and the open position P2. A dial lock body 32 having a function of changing the dial arrangement and detecting a dial collation state and a non-collation state, and an engagement portion 33 movable between the locking position Q1 and the unlocking position Q2. The casing 30 includes a reaction force mechanism A that applies a return reaction force to the mating portion 33, and a detection means D that has a displacement portion 72 and detects a predetermined operating position when the displacement portion 72 is pushed from the outside and displaced. As a result, at least the engaging portion 33 and the displacement portion 72 are both disposed on one end side of the casing 30 and the displacement portion 72 is not pushed in. When the operating portion 31 is in the open position P2, the reaction force mechanism A accumulates the repulsive force to hold the engaging portion 33 in the unlocked position, and when the displacement portion 72 is pushed in, the engaging portion 33 The holding is released and the reaction force mechanism A is moved to the locked position by the repulsive force.

  Even if comprised in this way, compared with the conventional locking devices, such as a general locker, the dial lock unit 3 can be attached while suppressing large-scale incorporation into the housing 1, and the door to which this is attached When 2 is closed, it is automatically locked, so the usability is improved.

  In addition, since the engaging portion 33 protrudes directly from the casing 39, a link or the like is unnecessary on the way, and a factor that causes an assembly error can be avoided. Since the displacement part 72 is also made to project directly from the same one end side of the casing 30, it can be assembled with the housing 1 only by the edge part 2 b on the anti-hanging side of the door 2, and a large-scale incorporation is possible. It becomes unnecessary, and it is easy to adjust the timing when the displacement portion 72 is pushed from the outside when the housing 1 is closed and the timing when the engaging portion 33 is engaged with the engaged portion 11 of the housing 1 at the closed position. , Accuracy is also easily obtained. Furthermore, since the engaging portion 33 moves to the locking position Q1 only when the displacement portion 72 receives pressure, it can be operated separately from the operation of the door 2, and the timing at which the door 2 is closed can be reliably detected. By engaging with the engaged portion 11 on the housing 1 side without interference, an accurate function can be secured.

  Further, only when the dial lock body 32 is collated, the unlocking operation of the operation unit 31 is enabled, and the movement of the engaging unit 33 to the unlocking position Q2 and the dial lock are interlocked with the unlocking operation of the operation unit 31. Since the operation unit 31 has a function of accepting an external operation in a direction different from the operation in the opening / closing direction, the operation unit 31 unlocks the engagement unit 33 through the operation unit 31. Since the reset of the dial lock body 32 and the opening of the door 2 can be performed in a single operation, the procedure for opening the door 2 becomes simpler than the conventional one, and the door 2 is opened. The security function is also ensured, which is comparable to that of Patent Document 1.

  Since the operation of the engaging portion 33 is also interlocked with the operation of the operation portion 31 up to the open position, and further jumps from there to the unlocking position Q2, the amount of operation applied to the operation portion 31 It is also possible to pursue further improvements in usability by designing the system so that there is less.

  Further, since the latch 30x is attached to one end side of the casing 30, an assembly error between the engaging portion 33 and the engaged portion 11 can be eliminated by the latch 30x, and a new processing is performed on the housing 1 side. It is possible to effectively eliminate the rattling of the door 2 and the decrease in the locking strength without applying the accuracy or increasing the assembly accuracy.

  In particular, since the latch 30x is provided so as to be immersible against elasticity when it receives an external force in the displacement direction of the displacement portion 72, it is easier to absorb the assembly error only on the dial lock unit 3 side.

  Furthermore, since the displacement portion 72 detects an operation in a direction perpendicular to the operation of the engaging portion 33, in the case of the present embodiment in which the door 2 is operated in the displacement direction of the displacement portion 72, In this case, the engaging portion 33 is not operated in the locking direction unless the displacement portion 72 detects the displacement. Incorporation that accurately prevents interference between the mating portion 33 and the housing 1 becomes possible.

  In this embodiment, the dial lock unit 3 as described above is attached to the door 2 to constitute an opening / closing device. Therefore, the opening / closing device can be manufactured at a low cost with as few man-hours as possible. It is possible to effectively improve the usability of the opening / closing device itself.

  The specific configuration of each part is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 3 ... Dial lock unit 30 ... Casing 30x ... Latch 31 ... Operation part 32 ... Dial lock main body 33 ... Engagement part 72 ... Displacement part A ... Reaction force mechanism D ... Detection means P1 ... Closed position P2 ... Open position Q1 ... Locking position Q2 ... Unlocking position

Claims (7)

An operation unit that can move between a closed position and an open position by accepting an external operation, and a function that accepts an external operation to change the dial arrangement and detect a dial collation state and a non-collation state A dial lock body, an engaging part that can be moved in conjunction with the operation part between the locking position and the unlocking position, and directly or indirectly to the engaging part as the operation part moves from the closed position to the open position. The casing is provided with a reaction force mechanism for accumulating a repulsive force for applying a return reaction force to the casing, and a detecting means that has a displacement portion and detects a predetermined operating position by the displacement portion being pushed and displaced from the outside. Associating and assembling, of which at least the engaging part and the displacement part are both arranged on one end side of the casing, and when the operation part is in the open position without the displacement part being pushed in, Accumulate the repulsive force in the mechanism so that the engaging part is held in the unlocked position, and when the displacement part is pushed in, the holding of the engaging part is released and moved to the locked position by the repulsive force of the reaction force mechanism A dial lock unit characterized by comprising. Only when the dial lock body collates, the operation part can be unlocked, and the interlock part is moved to the unlock position and the dial lock body is reset in conjunction with the unlocking operation of the operation part. The dial lock unit according to claim 1, wherein the operation unit has a function of accepting an external operation in a direction different from the operation in the opening / closing direction. After the engagement portion is interlocked with the operation of the operation portion up to the open position, the engagement portion provided in the opening / closing member is pulled in a predetermined free margin by a guide portion that is separate from the engagement portion. The dial lock unit according to claim 1 or 2, wherein the dial lock unit is configured so as to jump up from the position toward the unlocking position. The dial lock unit according to any one of claims 1 to 3, wherein a latch is further attached to one end of the casing. The dial lock unit according to claim 4, wherein the latch is provided so as to be immersible against elasticity when receiving an external force in a displacement direction of the displacement portion. The dial lock unit according to any one of claims 1 to 5, wherein the displacement portion is incorporated so as to detect an operation in a direction orthogonal to an operation direction of the engaging portion. An opening / closing device comprising the dial lock unit according to any one of claims 1 to 6 attached to a door.

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