JP6511014B2 - Locking device - Google Patents

Description

  The present invention relates to a locking device.

  Conventionally, for example, when a locker is used and the electromagnetic solenoid is energized to retract the plunger to release the engagement between the latch lever and the striker, the locker door is in an unlocked state allowing the door to be opened. There is known a locking device which is in a locked state which restricts the opening of the locker door when the solenoid is deenergized and the plunger is advanced to engage the latch lever with the striker.

  For example, as shown in FIG. 7, the conventional locking device 90 is pivotable about a first rotation shaft 92x and an electromagnetic solenoid 91 having a plunger 91b which can be advanced and retracted with respect to the electromagnetic solenoid body 91a. And a main body 94 including a release lever 92 which pivots in response to the advancement and withdrawal of the plunger 91 b, and a latch lever 93 which is pivotable about the second rotation shaft 93x and engaged with the release lever 92. There is something.

  However, in the locking device 90 described above, the driving force of the electromagnetic solenoid 91 is transmitted to the latch lever 93 via the one end 92 a and the other end 92 b of the release lever 92 pivotable about the first rotation shaft 92 x ( There is a problem that the driving force of the electromagnetic solenoid 91 is wasted because the power is transmitted via the release lever 92 which can be pivoted about the first rotation shaft 92x).

  An object of the present invention is to provide a locking device capable of suppressing the wasteful consumption of the driving force of the electromagnetic solenoid.

  The present invention for solving the above problems is directed to an electromagnetic solenoid having a longitudinal direction and a lateral direction and having a plunger that can move back and forth with respect to the solenoid body, and moves according to the movement of the plunger A locking device comprising: a lever receiving portion; and a latch lever pivotable about a rotation axis and engaged with the lever receiving portion in a locked state.

A feature of the present invention includes a case and a cover covering at least a part of the electromagnetic solenoid, and the electromagnetic solenoid, the lever receiving portion, and the rotation axis are linearly aligned in the longitudinal direction, and the electromagnetic solenoid And a frame that covers at least the longitudinal direction and the lateral direction is disposed, and the frame, and the case and the cover, a third engagement convex portion and a third engagement concave portion that engage with each other. Is placed .

  According to the locking device according to the present invention, since the electromagnetic solenoid, the lever receiving portion, and the rotary shaft are linearly aligned in the longitudinal direction, it is possible to suppress unnecessary consumption of the driving force of the electromagnetic solenoid. .

The drawings illustrate specific embodiments of the present invention and include not only the essential features of the invention, but also optional and preferred embodiments.
The bottom view of the main part of the locking device concerning the present invention. The top view of the main body of a locking device. The perspective view which shows the state which attached the main body of the locking device to the locker main body. The perspective view which shows the state which attached the striker of the locking device to the door of a locker. The top view which shows the inside of a main body in the state which the engagement part of the latch lever and the striker engaged. The top view which shows the inside of a main body in the state which engagement with the engagement part of a latch lever and the striker was cancelled | released. The top view which shows the conventional locking device.

  The details of the locking device according to the present invention will be described below with reference to the attached drawings. In addition to the essential requirements of the present invention, the following embodiments include requirements that can be selectively adopted and requirements that can be appropriately combined.

  FIG. 1 is a bottom view of a locking device 10 according to the present invention, and FIG. 2 is a plan view of the locking device 10. Double-headed arrows X, Y, Z in FIG. 1 and FIG. 2 indicate a transverse direction X, a longitudinal direction Y, and a thickness direction Z which intersect (orthogonal) each other in the locking device 10.

  For example, as shown in FIGS. 3 and 4, the locking device 10 moves the door 3 relative to the locker body 2 in the front-rear direction indicated by the double-headed arrow B in FIG. Is used for the openable and closable locker 1, and has a main body 20 attached to the locker main body 2 and a striker 70 attached to the door 3. More specifically, as shown in FIG. 3, the main body 20 is located in the space 5 located between the one side plate 2 a and the other side plate 2 b facing each other in the lateral direction X of the locker body 2. In addition, it is attached via a screw 9 to a mounting plate 6 located between the side plates 2a and 2b. One side plate 2a has a front portion 2c located forward in the front-rear direction and has a notch 4, and in the state in which the door 3 is restricted from opening relative to the locker main body 2, this notch 4 The engaging portion 72 of the striker 70 shown in FIG. The striker 70 is attached to the door 3 by a screw 79. The striker 70 has a striker main body 71 having a screw hole into which the tip of the screw 79 is inserted, and an engagement portion 72 engaged with the engagement portion 54 of the latch lever 50. The engaging portion 72 is attached to the striker main body 71 so as to be pivotable about a shaft 70x.

  The main body 20, as shown in FIG. 5, includes an electromagnetic solenoid 30 having a plunger 33 capable of advancing and retracting with respect to a coil 31 constituting the solenoid body, a lever receiving portion 40 which moves according to the advancing and retracting of the plunger 33, and a latch lever Fifty rotation shafts 51 and an optional guide lever 60 are provided in an internal space 19 defined by the case 11 and the cover 21. In other words, the case 11 and the cover 21 cover a part of the electromagnetic solenoid 30 and the lever receiving portion 40.

  The case 11 is made of, for example, a synthetic resin material, and as shown in FIG. 1, a bottom 12 and a first side wall 12 a positioned on the periphery of the bottom 12 and extending in the thickness direction Z; A second side wall 12b, a third side wall 12c, and a fourth side wall 12d are provided. The second side wall 12 b and the third side wall 12 c are opposed to each other in the lateral direction X. The first side wall 12a and the fourth side wall 12d are opposed to each other in the vertical direction Y. The first sidewall 12a, the second sidewall 12b, and the third sidewall 12c have the same projecting dimension in the thickness direction Z with respect to the bottom 12, while the thickness direction Z with respect to the bottom 12 of the fourth sidewall 12d. The dimension of projection to the side wall is smaller than the dimension in the thickness direction Z with respect to the bottom 12 of the first side wall 12a, the second side wall 12b, and the third side wall 12c.

  The first side wall 12a of the case 11 is a portion that connects one end 14a of the second side wall 12b in the lateral direction X to the end 14b of the third side wall 12c in the lateral direction X. The second side wall portion 12 b and the third side wall portion 12 c have a second engagement convex portion 13 protruding outward, at the outside located on the opposite side of the internal space 19 (see FIG. 5). The fourth side wall 12 d is a portion that connects the other end 14 c of the second side wall 12 b in the lateral direction X to the other end 14 d of the third side wall 12 c in the lateral direction X. In addition, the case 11 has a turning restricting portion 15 between the second side wall portion 12b and the fourth side wall portion 12d for restricting turning of the latch lever 50 by coming into contact with the turning latch lever 50 (see FIG. 5). Furthermore, the case 11 has a screw hole 16 for attaching the main body 20 to the mounting plate 6. Further, the bottom portion 12 of the case 11 has an opening 17 and a third engagement convex portion 17 b projecting from the periphery of the opening 17 toward the opening 17.

  The cover 21 is formed of, for example, a synthetic resin material, and as shown in FIG. 2, the top wall 22 and a first side wall 22 a positioned on the periphery of the top 22 and extending in the thickness direction Z. , The second side wall 22b, the third side wall 22c, and the fourth side wall 22d. The second side wall 22 b and the third side wall 22 c are opposed to each other in the lateral direction X. The first side wall 22 a and the fourth side wall 22 d are opposed to each other in the vertical direction Y. The first side wall 22a, the second side wall 22b, and the third side wall 22c have the same projecting dimension in the thickness direction Z with respect to the top 22 while the thickness of the fourth side wall 22d with respect to the top 22 The projecting dimension in the direction Z is smaller than the projecting dimension in the thickness direction Z with respect to the bottom 12 of the first side wall 22a, the second side wall 22b, and the third side wall 22c. In addition, in the case 11, the protrusion dimension of the fourth side wall 12d in the thickness direction Z with respect to the bottom 12 is the thickness of the first side wall 12a, the second side wall 12b, and the third side wall 12c with respect to the bottom 12 Since it is smaller than the projecting dimension in the direction Z, the other end of the main body 20 in the longitudinal direction Y is formed with an opening 29 through which the engaging portion 54 of the latch lever 50 and the second portion 62 of the guide lever 60 appear. (See Figure 1 and Figure 2).

  The first side wall 22a of the cover 21 is a portion that connects one end 24a of the second side wall 22b in the lateral direction X to the end 24b of the third side wall 22c in the lateral direction X. The second side wall 22 b and the third side wall 22 c have a second engagement recess 23 which is a hole connecting the internal space 19 and the outside. The fourth side wall 22 d is a portion that connects the other end 24 c of the second side wall 22 b in the lateral direction X and the other end 24 d of the third side wall 22 c in the lateral direction X. The cover 21 also has screw holes 26 for attaching the main body 20 to the mounting plate 6. Furthermore, the top portion 22 of the cover 21 has an opening 27 and a third engagement protrusion 27 b that protrudes from the periphery of the opening 27 toward the opening 27.

  When assembling the case 11 and the cover 21, the first side wall 12 a of the case 11 and the first side wall 22 a of the cover 21 face each other, and the second side wall 12 b of the case 11 and the second side wall of the cover 21 22b and the second engagement convex portion 13 of the case 11 and the second engagement of the cover 21 so that the third side wall 12c of the case 11 and the third side wall 22c of the cover 21 face each other. The recesses 23 are engaged with one another. In this example, the first side wall 12a, the second side wall 12b, and the third side wall 12c of the case 11 are positioned inward in the internal space 19, while the first side wall 22a and the second side wall of the cover 21 are The side wall 22b and the third side wall 22c are located outward. According to the locking device 10, the case 11 and the cover 21 are formed of an elastic material, and between the case 11 and the cover 21, the second engagement convex portion 13 and the second engagement which engage with each other are engaged. Since the joint recess 23 is disposed, the case 11 and the cover 21 can be assembled without requiring a tool such as a driver.

  As shown in FIG. 5, the electromagnetic solenoid 30 is disposed so that its longitudinal direction coincides with the longitudinal direction Y, and is positioned inside the coil 31 and the coil 31 formed by winding a conducting wire. When a magnetic field is generated by applying a voltage to the fixed iron core (not shown), the frame 32 covering the longitudinal direction Y and the lateral direction X of the coil 31, and when the magnetic field is generated, And a biasing member (coil spring) (not shown) for biasing the plunger 33 so that the tip of the plunger 33 protrudes with respect to the fixed iron core. One end and the other end of the conductive wire forming the coil 31 are connected to a power supply 39, and a voltage can be applied. Further, the electromagnetic solenoid 30 is disposed such that the direction in which the plunger 33 advances and retracts is the vertical direction Y.

  As shown in FIG. 1, the frame 32 has the third engagement recess 32a disposed on the side close to the bottom 12 of the case 11 in the thickness direction Z, and as shown in FIG. The third engagement recess 32 b is disposed on the side close to the top 22 of the cover 21 in Z. Moreover, as shown in FIG. 5, the third engagement recess 32 b is arranged to be adjacent to the third engagement recess 18 a of the second side wall 12 b of the case 11 in the vertical direction Y, and It is arranged to be adjacent to the third engagement recess 18 b of the central wall 18 of 11. By engaging the third engagement recess 32 a with the third engagement projection 17 b of the bottom 12 of the case 11, the electromagnetic solenoid 30 is attached to the case 11, and the third engagement recess 32 b and the third engagement recess 32 a The engagement of the engagement concave portions 18 a and 18 b with the third engagement convex portion 27 b of the top portion 22 of the cover 21 causes the electromagnetic solenoid 30 and the case 11 to be attached to the cover 21.

  Since the third engagement convex portions 17b and 27b and the third engagement concave portions 18a, 18b and 32a which are engaged with each other are disposed on the frame 32, the case 11 and the cover 21, a tool such as a driver can be used. The frame 32 can be attached to the case 11 and the cover 21 without the need.

  The lever receiving portion 40 is disposed between the central wall 18 extending in the longitudinal direction Y of the case 11 and the second side wall 12b extending in the longitudinal direction Y of the case 11 as shown in FIG. It is disposed in the case 11 so as to be slidable in the direction Y. One end 40a of the lever receiving portion 40 is attached to the plunger 33 by a pin (not shown) in the longitudinal direction Y, while the first engagement convex portion 41 is disposed at the other end 40b. . Between one end 40a of the lever receiving portion 40 and the plunger 33, a biasing member (coil spring) 42 is disposed which biases the lever receiving portion 40 so that the lever receiving portion 40 is separated from the electromagnetic solenoid 30. It is

  The latch lever 50 is attached to the case 11 and the cover 21 in such a manner as to be pivotable about the rotation shaft 51. The latch lever 50 has a lever main body 52 extending outward in the radial direction of the rotation shaft 51. The lever body 52 has one end 52a and the other end 52b.

  The lever main body 52 has a first engagement recess 53 that engages with the first engagement protrusion 41 of the lever receiving portion 40 on one end 52 a side. The first engagement convex portion 41 and the first engagement concave portion 53 have wall portions 41 a and 53 a that abut each other in the direction around the axis of the rotation shaft 51.

  The lever body 52 has an engaging portion 54 on the other end 52 b side for engaging with the engaging portion 72 of the striker 70. The engaging portion 54 is an axial center of the rotating shaft 51 from an intermediate position between the rotating shaft 51 and the other end 52b, and a first portion 54a extending around the axial center of the rotating shaft 51 from the other end 52b side. A planar view is formed in a U-shape by the second portion 54b extending in the circumferential direction and the portion 54c of the lever main body 52, and a striker is formed in a space surrounded by the first portion 54a, the second portion 54b and the portion 54c. The positioning of the engaging portion 72 of 70 engages the engaging portion 54 of the latch lever 50 with the engaging portion 72 of the striker 70.

  The distal end portion of the second portion 54b has an abutting portion 55 that abuts on the detection piece 59a of the microswitch 59 when the engaging portion 54 of the latch lever 50 and the engaging portion 72 of the striker 70 are engaged. ing.

  The latch lever 50 has a restricting portion 56 that restricts the guide lever 60 from pivoting around the axis of the rotary shaft 51 beyond the latch lever 50 between the second portion 54 b and the rotary shaft 51. ing.

  As shown in FIG. 6, the guide lever 60 is disposed so as to be pivotable with respect to the rotation shaft 51, and extends to the first portion 61 radially outward from the axial center of the rotation shaft 51. And a second portion 62 extending in an inclined manner. The length L2 from the base end of the first portion 61 of the guide lever 60 to the tip of the second portion 62 is longer than the length L1 from the base to tip of the first portion 54a of the latch lever 50 The tip end portion of the second portion of the guide lever 60 protrudes from the tip end portion of the first portion 54 a of the latch lever 50 in the direction around the axis of the shaft 51.

  The tip end portion of the guide lever 60 projects more than the tip end portion of the latch lever 50 in the direction around the axis of the rotary shaft 51, so the attachment position of the main body 20 of the locking device 10 to the locker main body 2 and the striker 70 to the door 3 Even if the mounting position is slightly shifted, the latch lever 50 and the striker 70 can be engaged.

  As shown in FIG. 5, in the internal space 19 of the main body 20, as shown in FIG. 6, from the state where the engaging portion 54 of the latch lever 50 and the engaging portion 72 of the striker 70 are engaged, 50. The biasing of the latch lever 50 to the state in which the latch lever 50 is in contact with the turning restricting portion 15 of the case 11 by releasing the engagement between the engaging portion 54 of the 50 and the engaging portion 72 of the striker 70. A member (coil spring) 69 is disposed.

  In this locking device 10, as shown in FIG. 6, the electromagnetic solenoid 30 is energized to cause the plunger 33 to retract, and the latch lever 50 abuts against the turning restricting portion 15 of the case 11 by the biasing force of the biasing member 69. When the engagement between the engagement portion 54 of the latch lever 50 and the engagement portion 72 of the striker 70 is released, the door 3 of the locker 1 is in the unlocked state where it is permitted to open. On the other hand, when the electromagnetic solenoid 30 is de-energized, the plunger 33 is biased such that the lever receiving portion 40 is separated from the electromagnetic solenoid 30 by the biasing force of the biasing member 42. In this state, when the door 3 is closed with respect to the locker main body 2 and the engaging portion 72 of the striker 70 abuts on the second portion 62 of the guide lever 60, the guide lever 60 and the latch lever 50 center on the rotating shaft 51. As shown in FIG. 5, the plunger 33 is biased to move the lever receiving portion 40 away from the electromagnetic solenoid 30 by the biasing force of the biasing member 42, and the first engagement recess 53 is engaged with the first engagement recess 53. The projection 41 is engaged, and the engagement portion 54 of the latch lever 50 and the engagement portion 72 of the striker 70 are engaged. In this state, the door 3 is restricted from opening relative to the locker body 2 (locked state). Thereafter, when the electromagnetic solenoid 30 is energized, it operates in the same manner as described above, and the unlocked state in which the door 3 of the locker 1 is allowed to open is obtained.

  Further, in the locking device 10, as shown in FIG. 5, the electromagnetic solenoid 30, the lever receiving portion 40, and the rotating shaft 51 are linearly arranged in the longitudinal direction Y. For this reason, it can suppress that the driving force of the electromagnetic solenoid 30 is consumed uselessly.

  In addition, the direction in which the plunger 33 of the electromagnetic solenoid 30 advances and retracts, the moving direction of the lever receiving portion 40, and the first engagement convex portion 41 and the first engagement concave portion 53 are linearly aligned in the longitudinal direction Y. . Therefore, reduction in the driving force of the electromagnetic solenoid 30 can be reliably suppressed.

  When the engaging portion 54 of the latch lever 50 and the engaging portion 72 of the striker 70 are engaged, the electromagnetic solenoid 30, the lever receiving portion 40, the lever body 52 of the latch lever 50, and the striker 70 The first engaging convex portion 41 and the first engaging concave portion 53 are in contact with each other in a direction around the axis of the rotation shaft 51, which is disposed in a straight region 68 extending in the longitudinal direction Y (see FIG. 5). As a result, even if a force (force applied in the direction indicated by arrow F in FIG. 5) is applied to the striker 70 in the longitudinal direction Y, the direction of the force when applied, the first engagement convex portion 41 and the first Since the direction of the force for releasing the engagement with the one engaging recess 53 crosses, the driving force of the electromagnetic solenoid 30 can be further reduced. For this reason, when this locking device 10 is used for a personal luggage container installed inside a women's toilet, the door is urged to open forward by putting a large amount of luggage in the luggage container. Even in the state, a large driving force of the electromagnetic solenoid 30 is not required to bring the locking device 10 into the unlocked state.

  Further, in the case 11 and the cover 21, the openings 17 and 27 are disposed at positions overlapping the electromagnetic solenoid 30 in a plan view in the thickness direction Z. Therefore, even if the electromagnetic solenoid 30 generates heat by repeating the energization and the release of the energization, the heat generation of the electromagnetic solenoid 30 can be released from the openings 17 and 27.

  Furthermore, since the main body 20 of the locking device 10 has a size in the longitudinal direction Y larger than that in the lateral direction X and has a longitudinally elongated shape, it is suitable for a locker having a large depth dimension.

  In the locking device 10 described above, the main body 20 of the locking device 10 is attached to the locker main body 2 and the striker 70 is attached to the door 3. However, according to the present invention, the striker 70 may be attached to the locker body 2 while the body 20 of the locking device 10 may be attached to the door 3.

  In the above description, the locker 10 is used as a locker. However, the present invention is not limited thereto, and the locker may be provided with a fixed body and a movable body moving relative to the fixed body. 10 can be used.

  Furthermore, in the above description, while the second engagement convex portion 13 is disposed in the case 11 and the second engagement concave portion 23 is disposed in the cover 21, the present invention is not limited thereto. The second engagement convex portion may be disposed on the cover 21 while the second engagement concave portion is disposed on the front side.

  In the above description, the first engaging recess 53 is disposed in the latch lever 50, and the first engaging protrusion is disposed in the lever receiving portion 40. However, the present invention is not limited thereto. The first engaging recess may be disposed on the latch lever 50, while the lever receiving portion 40 may be provided with the first engaging protrusion.

  In the members constituting the locking device 10, in addition to the materials described in the present specification, known materials commonly used in the field of this kind may be used without limitation unless otherwise specified. it can. Also, the terms "first", "second" and "third" as used herein are used merely to distinguish similar elements, locations and the like.

The invention described so far can be organized at least as follows. An electromagnetic solenoid having a longitudinal direction and a lateral direction and having a plunger movable back and forth with respect to the solenoid body, a lever receiving portion which moves according to the movement of the plunger, and pivotable about a rotation axis, And a latch lever engaged with the lever receiving portion, comprising: a case and a cover covering at least a part of the electromagnetic solenoid, the electromagnetic solenoid, the lever receiving portion, and the rotation shaft being The electromagnetic solenoids are arranged linearly in the longitudinal direction, and a frame covering at least the longitudinal direction and the lateral direction is disposed in the electromagnetic solenoid, and the frame and the case and the cover are engaged with each other. A third engaging convex portion and a third engaging concave portion are disposed .

Further, the present invention has at least the following embodiments.
(1) A first engagement convex portion and a first engagement concave portion engaged with each other are disposed between the lever receiving portion and the latch lever, and a direction in which the plunger of the electromagnetic solenoid advances and retracts The moving direction of the lever receiving portion, and the first engagement convex portion and the first engagement concave portion are linearly aligned in the longitudinal direction.
(2) The locking device includes a main body including the electromagnetic solenoid, the lever receiving portion, and the latch lever, and a striker engaged with the latch lever, and the latch lever has a diameter from the rotation shaft An outwardly extending lever body, and an engaging portion extending from the distal end portion of the lever body around the axis of the rotary shaft and engaged with the striker; When the first engaging recess abuts in the direction around the axis and the engaging portion of the latch lever engages with the striker, the electromagnetic solenoid, the lever receiving portion, and the latch The lever body of the lever and the striker are arranged in a straight region extending in the longitudinal direction.
(3) A guide lever for guiding the striker is rotatably disposed at the engagement portion of the latch lever on the rotation shaft, and in the direction around the axis of the rotation shaft, The distal end portion of the guide lever projects beyond the distal end portion.
(4) before SL case and the cover, Yes formed of an elastic material, between the case and the cover is disposed and a second engaging portion and the second engagement recess to be engaged with each other It is
( 5 ) The case and the cover have a thickness direction intersecting the longitudinal direction and the lateral direction, and an opening is disposed at a position overlapping the electromagnetic solenoid in plan view in the thickness direction.

DESCRIPTION OF SYMBOLS 10 Locking device 11 Case 13 2nd engagement convex part 17 opening 19 internal space 20 main body 21 cover 23 2nd engagement concave part 27 opening 27b 3rd engagement convex part 30 electromagnetic solenoid 32 frame 32a 3rd engagement concave part 32b 3rd Engaging concave portion 33 Plunger 40 Lever receiving portion 41 First engaging convex portion 50 Latch lever 52 Lever main body 53 First engaging concave portion 54 Engaging portion 60 Guide lever 68 Straight region 70 Striker X Horizontal direction Y Vertical direction Z Thickness direction

Claims (6)

An electromagnetic solenoid having a longitudinal direction and a lateral direction and having a plunger movable back and forth with respect to the solenoid body, a lever receiving portion which moves according to the movement of the plunger, and pivotable about a rotation axis, And a latch lever engaged with the lever receiving portion.
A case and a cover covering at least a part of the electromagnetic solenoid;
The electromagnetic solenoid, the lever receiving portion, and the rotating shaft are linearly arranged in the longitudinal direction ,
The electromagnetic solenoid is provided with a frame covering at least the longitudinal direction and the lateral direction,
A locking device characterized in that a third engagement convex portion and a third engagement concave portion which engage with each other are disposed on the frame, the case and the cover . A first engagement convex portion and a first engagement concave portion, which are engaged with each other, are disposed between the lever receiving portion and the latch lever,
The direction in which the plunger of the electromagnetic solenoid moves forward and backward, the moving direction of the lever receiving portion, and the first engagement convex portion and the first engagement concave portion are linearly aligned in the longitudinal direction. The locking device according to 1. The locking device includes a main body including the electromagnetic solenoid, the lever receiving portion, and the latch lever, and a striker engaged with the latch lever.
The latch lever has a lever main body extending radially outward from the rotary shaft, and an engagement portion extending from a tip end portion of the lever main body around the axis of the rotary shaft and engaging with the striker.
The first engagement convex portion and the first engagement recess abut in the direction around the axis;
When the engaging portion of the latch lever and the striker are engaged, the electromagnetic solenoid, the lever receiving portion, the lever main body of the latch lever, and the striker extend in the longitudinal direction. 3. The locking device according to claim 2, wherein the locking device is arranged in an extending straight area. A guide lever for guiding the striker is rotatably disposed at the engagement portion of the latch lever on the rotation shaft,
The locking device according to claim 3, wherein a tip end portion of the guide lever projects more than a tip end portion of the latch lever in the direction around the axis of the rotation shaft. Before SL case and the cover, Yes formed of an elastic material,
The locking device according to any one of claims 1 to 4, wherein a second engagement convex portion and a second engagement concave portion engaged with each other are disposed between the case and the cover. Said case and said cover, said longitudinal direction and a thickness direction crossing the horizontal direction, according to claim 1 to 5 in a plan view in the thickness direction is disposed an opening at a position overlapping the electromagnetic solenoid Locking device according to any of the above.

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