JP2015067999A - Lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock device which can be easily picked up even when it has dropped.SOLUTION: A lock device includes: a key 10 having a key head 11 and an insertion part 12; and a key head cover 20 for covering the key head 11. A breakthrough 24 allowing a finger to be inserted is formed in the key head cover 20. The key head cover 20 is configured so as to form a clearance S allowing a finger to approach between an arbitrary smooth surface G and a formation portion when the key head cover 20 is placed on the arbitrary smooth surface G. It is preferable that the lock device is provided with: a case body 21 which stores the key head 11 of the key 10 in its tip 211 and has a breakthrough 24 formed in its base end part 212; and a projection 25 which is formed on each of the surface and the rear face of the case body 21, and in which a crown 25a is positioned on the base end part 212 side more than the center of gravity of the whole device.

Description

  The present invention relates to a locking device, and more particularly to a locking device including a key including a key head and an insertion portion, and a key head cover covering the key head.

  Conventionally, for example, a locking device proposed in Patent Document 1 is known. This lock device is configured to include a key and a key head cover. The key has a key head and an insertion part. The key head is a flat part for holding the key. The insertion portion is a long portion extending outward from the edge of the key head, and forms a key pile.

  The key head cover stores the key head so that the insertion portion is exposed. The key head cover houses the key head at one end so that the key can be rotated. Such a key head cover is formed with a curved long hole that allows insertion of a plurality of fingers from the central region toward the other end.

  In such a locking device, an elderly person or a handicapped person who is difficult to pinch the key head of the key can hold the key by inserting a plurality of fingers into the slot, Is inserted into a predetermined keyhole so that the key can be rotated.

Japanese Patent Laid-Open No. 10-153021

  However, when the above-described lock device proposed in Patent Document 1 is dropped on the ground or the like and placed in a state where one opening of the long hole portion of the key head cover is closed on the ground, the elderly person For example, it is difficult to hold a locking device by inserting a finger into the slot. This is more pronounced for disabled people with disabilities.

  In view of the above circumstances, an object of the present invention is to provide a locking device that can be easily picked up even if it is dropped.

  To achieve the above object, a locking device according to the present invention is a locking device including a key including a key head and an insertion portion, and a key head cover covering the key head, wherein the key head cover is A hole that allows insertion of a finger is formed, and when placed on an arbitrary smooth surface, a gap that allows entry of the finger is formed between the smooth surface and the hole forming portion. It is characterized by comprising.

  According to the present invention, the key head cover has a hole portion that allows insertion of a finger, and when the key head cover is placed on an arbitrary smooth surface, the finger can enter between the smooth surface and the hole forming portion. For example, when it is dropped on a smooth surface such as the ground, the hole formation site can be placed in a state separated from the smooth surface. This makes it possible for persons with disabilities and the like who are handicapped to hold the locking device by inserting their fingers into the gaps and then inserting them into the holes.

  The present invention is also characterized in that, in the above-mentioned locking device, the hole has a minimum width of 15 mm or more.

  According to the present invention, since the minimum width of the hole is 15 mm or more, a handicapped person or the like who is handicapped can securely insert a finger into the hole.

  Further, the present invention is characterized in that, in the above-mentioned locking device, a separation distance between the smooth surface and the hole forming portion is 15 mm or more.

  According to this invention, when placed on an arbitrary smooth surface, the distance between the smooth surface and the hole forming portion is 15 mm or more. Even if it is made to do, a finger can be reliably inserted in a hole.

  Further, the present invention is the above-described locking device, wherein the key head cover is formed on a front surface and a back surface of the case main body in which the key head is housed in a distal end portion and the hole is formed in a proximal end portion. And a top portion including a protruding portion located on the base end side of the case body with respect to the center of gravity of the entire apparatus.

  According to this invention, since the top of the protrusion of the key head cover is formed to be located closer to the base end of the case body than the center of gravity of the entire device, the locking device can be dropped onto a smooth surface such as the ground. In the case of being closed, the base end portion of the case main body, which is the hole forming portion, can be placed in a state of being separated from the smooth surface.

  Moreover, the present invention is characterized in that, in the above-mentioned locking device, the protruding portion has a substantially hemispherical shape.

  According to the present invention, the substantially hemispherical protrusion of the key head cover is formed so that the top is located closer to the base end of the case body than the center of gravity of the entire device. When it is dropped on the surface, the base end portion of the case main body, which is the hole forming portion, can be placed in a state of being separated from the smooth surface.

  In the locking device according to the present invention, the protrusion has an inclined surface that is inclined so as to be gradually separated from the front surface or the back surface of the case body as it goes from the distal end portion to the proximal end portion of the case body. It is characterized by comprising.

  According to this invention, the protruding portion of the key head cover is formed so that the top portion is positioned closer to the proximal end portion of the case body than the center of gravity of the entire apparatus, and is directed from the distal end portion of the case body to the proximal end portion. Since it has an inclined surface that inclines so as to be gradually separated from the front surface or the back surface of the case main body, if the locking device is dropped onto a smooth surface such as the ground, the case is a hole forming part The base end portion of the main body can be placed in a state separated from the smooth surface.

  Further, the present invention provides the above-described locking device, wherein the key head cover includes a case main body that houses the key head at a distal end portion and the hole portion is formed at a proximal end portion. It is characterized in that it is bent to the front surface side or the back surface side in the central region which is the base end side of the case body with respect to the center of gravity.

  According to the present invention, the case main body of the key head cover is formed to bend toward the front surface side or the back surface side in the central region that is the base end side of the case main body with respect to the center of gravity of the entire device. For example, when it is dropped on a smooth surface such as the ground, the base end portion of the case main body, which is a hole forming portion, can be placed in a state separated from the smooth surface.

  Further, the present invention is characterized in that, in the above-mentioned lock device, the case main body houses the key head so that the key is rotatable.

  According to the present invention, the case main body houses the key head so that the key can be rotated, so that a finger or the like can be inserted into the hole and hooked on the fingertip without pinching the lock device. The locking / unlocking operation of the lock device can be performed, and the locking / unlocking operation can be simplified not only for specific users such as handicapped persons and elderly persons but also for all users.

  According to the present invention, it is possible to easily pick up even if it is dropped.

FIG. 1 is a front view showing a lock device according to Embodiment 1 of the present invention. FIG. 2 is a right side view showing the lock device according to the first embodiment of the present invention as viewed from the right. FIG. 3 is an explanatory diagram showing a case where the locking device shown in FIGS. 1 and 2 is placed on a smooth surface such as the ground. FIG. 4 is an explanatory diagram showing a procedure for performing the locking / unlocking operation of the target locking device using the locking device shown in FIGS. 1 to 3. FIG. 5 is an explanatory diagram showing a procedure for performing the locking / unlocking operation of the target locking device using the locking device shown in FIGS. 1 to 3. FIG. 6 is an explanatory diagram showing a procedure for performing the locking / unlocking operation of the target locking device using the locking device shown in FIGS. 1 to 3. FIG. 7 is a front view showing the locking device according to the second embodiment of the present invention. FIG. 8: is a right view which shows the case where the locking device which is Embodiment 2 of this invention is seen from the right. FIG. 9 is an explanatory diagram showing a case where the locking device shown in FIGS. 7 and 8 is placed on a smooth surface such as the ground. FIG. 10 is a front view showing a lock device according to Embodiment 3 of the present invention. FIG. 11: is a right view which shows the case where the locking device which is Embodiment 3 of this invention is seen from the right. FIG. 12 is an explanatory diagram showing a case where the lock device shown in FIGS. 10 and 11 is placed on a smooth surface such as the ground.

  Exemplary embodiments of a locking device according to the present invention will be described below in detail with reference to the accompanying drawings.

<Embodiment 1>
1 and 2 each show a lock device according to Embodiment 1 of the present invention. FIG. 1 is a front view, and FIG. 2 is a right side view of the lock device as viewed from the right. The lock device illustrated here includes a key 10 and a key head cover 20.

  The key 10 is made of, for example, a metal material, and has a key head 11 and an insertion portion 12. The key head 11 is a substantially circular flat plate-like member for holding the key 10.

  The insertion part 12 is a long flat plate-like part extending outward from the edge part of the key head 11 and forms a key crest. Here, the key pile formed in the insertion portion 12 is not clearly shown in the figure, but may be formed by unevenness formed on both right and left end portions of the insertion portion 12. It may be formed by depressions formed on the front surface and the back surface of the insert portion 12.

  The key head cover 20 is formed of, for example, a resin material, and includes a case main body 21 and a protruding portion 25.

  The case main body 21 has a substantially flat plate shape formed by joining the first plate member 21a and the second plate member 21b together so as to define a storage space between them. Here, both the first plate material 21a and the second plate material 21b have a rectangular shape with curved corners.

  Such a case main body 21 houses the key 10 at the distal end portion 211. More specifically, an opening 22 is formed from the approximate center of the front end surface of the case main body 21 to the front end side of the right end surface, and the key 10 is attached to the front end 211 so that the insertion portion 12 is exposed to the outside through the opening 22. The key head 11 is housed. At this time, the protrusion 23 formed on one of the first plate member 21 a and the second plate member 21 b passes through the insertion hole 11 a formed in the key head 11. Thus, the key 10 is configured such that the right edge of the insertion portion 12 is the opening edge of the right end surface of the case body 21 until the left end of the insertion portion 12 contacts the opening edge 22a of the front end surface of the case body 21. It can be freely rotated until it comes into contact with the portion 22b. That is, the case main body 21 houses the key head 11 so that the key 10 is rotatable.

  A through hole (hole) 24 is formed in the base end portion 212 of the case body 21. The through hole 24 is formed without communicating with the storage space of the case body 21 and has a diameter that allows insertion of a finger represented by a finger or the like. Here, the diameter of the through hole 24 is preferably set to a minimum width of 15 mm or more from the viewpoint of reliably inserting a finger, and more preferably about 20 mm.

  The protrusions 25 are formed on the front surface (front surface of the first plate material 21a) and the back surface (surface of the second plate material 21b) of the case body 21, respectively. These projecting portions 25 are formed in regions from the front end portion 211 to the central portion 213 on the front and back surfaces of the case main body 21, and each has a substantially hemispherical form. These projecting portions 25 are formed such that the top portion 25a is positioned closer to the base end portion 212 of the case body 21 than the center of gravity of the entire apparatus. In the case of the present embodiment, the key 10 is made of a metal material, the case body 21 is made of a resin material, and the overall length of the case body 21 is not so large. It is almost coincident with the center of gravity. Further, as will be described later, when the locking device is placed on a smooth surface such as the ground, the protruding height of the protruding portion 25 is equal to the smooth surface (mounting surface) G (see FIG. 3) and the penetrating height. It has a size sufficient to form a gap (for example, a gap of 15 mm or more) S that allows a finger to enter between the base end portion 212 that is the formation site of the hole 24.

  In the lock device having the configuration described above, the protruding portion 25 of the key head cover 20 is formed such that the top portion 25a is located closer to the base end portion 212 of the case body 21 than the center of gravity of the entire device. When it is dropped on the smooth surface G such as the ground, the base end portion 212 of the case main body 21 that is the formation site of the through hole 24 is placed in a state separated from the smooth surface G as shown in FIG. Can do. In addition, since the protruding height of the protruding portion 25 has the above-described size, the locking device has a gap that allows a finger to enter between the base end portion 212 and the smooth surface G. S can be formed.

  Thereby, even a handicapped person with a handicapped person or the like can have the locking device by inserting his / her finger into the gap S and then inserting it into the through hole 24. That is, the above-described locking device is an operation of picking up the locking device by inserting the finger into the through-hole 24 and hanging the fingertip from the operation of grasping and picking up the locking device with a finger. You can easily pick up even if you have.

  And since the case main body 21 has accommodated the key head 11 so that the key 10 can turn freely, the locking device which is this Embodiment locks / unlocks the lock device 1 which becomes object as follows. The action can be performed.

  As shown in FIG. 4, the insertion part 12 of the key 10 of the locking device which inserts and holds a finger in the through-hole 24 is inserted into the key hole (not shown) of the locking device 1, and as shown in FIG. 10, the case main body 21 (key head cover 20) is relatively rotated. Thereafter, as shown in FIG. 6, the locking device 1 can be locked or unlocked by rotating the case body 21 (key head cover 20) in the clockwise direction.

  As described above, the case body 21 of the locking device houses the key head 11 so that the key 10 can be rotated, so that the fingers can be inserted into the through-hole 24 and hooked on the fingertip without holding the locking device. The locking / unlocking operation of the locking device 1 can be performed in a closed state, and the locking / unlocking operation should be simplified not only for specific users such as handicapped persons and elderly persons but also for all users. Can do.

<Embodiment 2>
7 and 8 show the lock device according to the second embodiment of the present invention. FIG. 7 is a front view, and FIG. 8 is a right side view of the lock device as viewed from the right. The lock device illustrated here includes a key 10 and a key head cover 30.

  The key 10 is made of, for example, a metal material, and has a key head 11 and an insertion portion 12. The key head 11 is a substantially circular flat plate-like member for holding the key 10.

  The insertion part 12 is a long flat plate-like part extending outward from the edge part of the key head 11 and forms a key crest. Here, the key pile formed in the insertion portion 12 is not clearly shown in the figure, but may be formed by unevenness formed on both right and left end portions of the insertion portion 12. It may be formed by depressions formed on the front surface and the back surface of the insert portion 12.

  The key head cover 30 is made of, for example, a resin material, and includes a case main body 31 and a protruding portion 35.

  The case main body 31 has a substantially flat plate shape formed by joining the first plate member 31a and the second plate member 31b together so as to define a storage space between them. Here, both the first plate material 31a and the second plate material 31b have a rectangular shape with curved corners.

  Such a case main body 31 houses the key 10 in the distal end portion 311. More specifically, an opening 32 is formed from approximately the center of the front end surface of the case body 31 to the front end side of the right end surface, and the key 10 is attached to the front end 311 so that the insertion portion 12 is exposed to the outside through the opening 32. The key head 11 is housed. At this time, the protrusion 33 formed on one of the first plate member 31 a and the second plate member 31 b passes through the insertion hole 11 a formed in the key head 11. Thus, the key 10 is configured such that the right edge of the insertion portion 12 is the opening edge of the right end surface of the case body 31 until the left end of the insertion portion 12 contacts the opening edge portion 32a of the front end surface of the case body 31. It can be freely rotated until it comes into contact with the portion 32b. That is, the case main body 31 houses the key head 11 so that the key 10 is rotatable.

  A through hole (hole) 34 is formed in the base end portion 312 of the case body 31. The through hole 34 is formed without communicating with the storage space of the case main body 31 and has a diameter that allows insertion of a finger represented by a finger or the like. Here, the diameter of the through hole 34 is preferably set to a minimum width of 15 mm or more from the viewpoint of reliably inserting a finger, and more preferably about 20 mm.

  The protrusions 35 are formed on the front surface (front surface of the first plate material 31a) and the back surface (surface of the second plate material 31b) of the case main body 31, respectively. These protrusions 35 are formed in a region from the front end portion 311 to the central portion 313 on the front and back surfaces of the case main body 31, and the surface of the case main body 31 as it goes from the front end portion 311 to the base end portion 312. Or it has the inclined surface 35b which inclines so that it may gradually separate from the back surface, and the inclined edge part of this inclined surface 35b becomes the top part 35a. These projecting portions 35 are formed such that the top portion 35a is located closer to the base end portion 312 of the case body 31 than the center of gravity of the entire apparatus. In the case of the present embodiment, the key 10 is made of a metal material, and the case body 31 is made of a resin material. Further, since the entire length of the case body 31 is not so large, the center of gravity of the entire apparatus is the key 10. It is almost coincident with the center of gravity. Further, as will be described later, when the locking device is placed on a smooth surface such as the ground, the protruding height of the protruding portion 35 is equal to the smooth surface (mounting surface) G (see FIG. 9) and the penetrating height. It has a size sufficient to form a gap (for example, a gap of 15 mm or more) S that allows a finger to enter between the base end 312 that is the formation site of the hole 34.

  In the locking device having the configuration as described above, the protruding portion 35 of the key head cover 30 is formed such that the top portion 35a is located closer to the proximal end portion 312 of the case body 31 than the center of gravity of the entire device, and the case Since it has the inclined surface 35b which inclines so that it may gradually separate from the surface or back surface of this case main body 31 as it goes to the base end part 312 from the front-end | tip part 311 of the main body 31, it falls on smooth surfaces G, such as the ground, for example 9, the base end portion 312 of the case main body 31 that is the formation site of the through hole 34 can be placed in a state of being separated from the smooth surface G, as shown in FIG. In addition, since the protruding height of the protruding portion 35 has the above-described size, the locking device has a gap that allows a finger to enter between the base end portion 312 and the smooth surface G. S can be formed.

  Accordingly, even a handicapped person with a handicapped hand or the like can have the locking device by inserting his / her finger into the gap S and then inserting it into the through hole 34. That is, the above-described locking device is an operation of picking up the locking device by inserting the finger into the through-hole 34 and hooking the fingertip from the operation of grasping and picking up the locking device with a finger. You can easily pick up even if you have.

  And since the case main body 31 has accommodated the key head 11 so that the key 10 can turn freely, the locking device which is this Embodiment has the following locking / unlocking operation | movement of the target locking device as follows. It can be performed.

  Although not clearly shown in the drawing, the insertion portion 12 of the key 10 of the locking device that holds the finger inserted into the through hole 34 is inserted into the key hole of the locking device, and the case main body 31 (key head cover 30) is inserted into the key 10. Turn relatively. Thereafter, the locking device can be locked or unlocked by rotating the case body 31 (key head cover 30) in the clockwise direction.

  In this way, the case body 31 of the locking device houses the key head 11 so that the key 10 can be rotated, so that fingers can be inserted into the through-hole 34 without hooking the locking device and hooked on the fingertip. The locking device can be unlocked and unlocked in a closed state, and the locking and unlocking operation can be simplified not only for specific users such as handicapped and elderly people but also for all users. it can.

<Embodiment 3>
10 and 11 show a lock device according to Embodiment 3 of the present invention, respectively. FIG. 10 is a front view, and FIG. 11 is a right side view showing the lock device viewed from the right. The lock device illustrated here includes a key 10 and a key head cover 40.

  The key 10 is made of, for example, a metal material, and has a key head 11 and an insertion portion 12. The key head 11 is a substantially circular flat plate-like member for holding the key 10.

  The insertion part 12 is a long flat plate-like part extending outward from the edge part of the key head 11 and forms a key crest. Here, the key pile formed in the insertion portion 12 is not clearly shown in the figure, but may be formed by unevenness formed on both right and left end portions of the insertion portion 12. It may be formed by depressions formed on the front surface and the back surface of the insert portion 12.

  The key head cover 40 is formed of a resin material, for example, and includes a case main body 41.

  The case body 41 has a substantially flat plate shape formed by joining the first plate member 41a and the second plate member 41b together so as to define a storage space between them. Here, both the first plate member 41a and the second plate member 41b have a rectangular shape with curved corners.

  Such a case main body 41 houses the key 10 at the tip 411. More specifically, an opening 42 is formed from approximately the center of the front end surface of the case main body 41 to the front end side of the right end surface, and the key 10 is attached to the front end 411 so that the insertion portion 12 is exposed to the outside through the opening 42. The key head 11 is housed. At this time, the protrusion 43 formed on one of the first plate member 41 a and the second plate member 41 b passes through the insertion hole 11 a formed in the key head 11. As a result, the key 10 is inserted into the right edge of the case main body 41 until the left end of the insertion portion 12 contacts the opening edge 42a of the front end surface of the case main body 41. It can be freely rotated until it comes into contact with the portion 42b. That is, the case main body 41 accommodates the key head 11 so that the key 10 is rotatable.

  Further, a through hole (hole) 44 is formed in the base end portion 412 of the case main body 41. The through hole 44 is formed without communicating with the storage space of the case body 41 and has a diameter that allows insertion of a finger represented by a finger or the like. Here, the diameter of the through hole 44 is preferably set to a minimum width of 15 mm or more from the viewpoint of reliably inserting a finger, and more preferably about 20 mm.

  Further, the case main body 41 is formed to be bent toward the surface side in a central region 413 which is the base end portion 412 side of the case main body 41 with respect to the center of gravity of the entire apparatus. As will be described later, when the locking device is placed on a smooth surface such as the ground, the bending angle of the central region 413 is different from that of the smooth surface (mounting surface) G (see FIG. 12) and the through hole 44. It is large enough to form a gap (for example, a gap of 15 mm or more) S that allows the entry of a finger between the base end portion 412 that is the formation site of the above.

  The lock device having the configuration as described above is formed by bending the case main body 41 of the key head cover 40 toward the surface side in the central region 413 that is the base end portion 412 side of the case main body 41 with respect to the center of gravity of the entire device. Therefore, for example, when it is dropped on the smooth surface G such as the ground, the base end portion 412 of the case body 41 that is the formation site of the through hole 44 is separated from the smooth surface G as shown in FIG. It can be placed in a state. Moreover, since the bending angle has the size as described above, the locking device forms a gap S between the base end portion 412 and the smooth surface G to allow the finger to enter. Can do.

  Accordingly, even a handicapped person with a handicapped hand or the like can have the locking device by inserting his / her finger into the gap S and then inserting it into the through hole 44. That is, the above-described locking device is an operation of picking up the locking device by inserting the finger into the through-hole 44 and hanging the fingertip from the operation of grasping and picking up the locking device with a finger. You can easily pick up even if you have.

  And since the case main body 41 has accommodated the key head 11 so that the key 10 can rotate freely, the locking device which is this Embodiment has the following locking / unlocking operation | movement of the target locking device as follows. It can be performed.

  Although not clearly shown in the drawing, the insertion portion 12 of the key 10 of the lock device that inserts and holds the finger into the through hole 44 is inserted into the key hole of the lock device, and the case main body 41 (key head cover 40) is inserted into the key 10. Turn relatively. Thereafter, the locking device can be locked or unlocked by rotating the case body 41 (key head cover 40) in the clockwise direction.

  In this way, the case body 41 of the lock device houses the key head 11 so that the key 10 can be rotated, so that a finger can be inserted into the through hole 44 and hooked on the fingertip without holding the lock device. The locking device can be unlocked and unlocked in a closed state, and the locking and unlocking operation can be simplified not only for specific users such as handicapped and elderly people but also for all users. it can.

  As mentioned above, although preferred Embodiment 1-3 of this invention was demonstrated, this invention is not limited to these, A various change can be made.

  In Embodiment 3 described above, the case main body 41 is bent toward the front surface side in the central region 413. However, in the present invention, the case main body is bent toward the back surface side in the central region. Also good.

  In the first and second embodiments described above, the protrusions 25 and 35 are provided on the case main bodies 21 and 31, so that the finger is placed between the base end portions 212 and 312 of the case main bodies 21 and 31 and the smooth surface G. In the third embodiment, the case body 41 is bent to the surface side in the central region 413 so that the gap S between the base end portion 412 of the case body 41 and the smooth surface G is formed. However, the present invention is not limited to these three forms, and the gap is formed by devising the shape of the case body itself. You may do it.

DESCRIPTION OF SYMBOLS 10 Key 11 Key head 12 Insertion part 20 Key head cover 21 Case main body 21a 1st board | plate material 21b 2nd board | plate material 211 Tip part 212 Base end part 213 Central part 24 Through-hole 25 Protrusion part 25a Top part 30 Key head cover 31 Case main body 31a 1st Plate material 31b Second plate material 311 Tip portion 312 Base end portion 313 Central portion 34 Through hole 35 Projection portion 35a Top portion 35b Inclined surface 40 Key head cover 41 Case main body 41a First plate material 41b Second plate material 411 Tip portion 412 Base end portion 413 Central region 44 through hole S gap

Claims (8)

A key with a key head and a plug, and
A key head cover that covers the key head,
The key head cover has a hole that allows insertion of a finger, and a gap that allows a finger to enter between the smooth surface and the hole forming portion when the key head cover is placed on an arbitrary smooth surface. A locking device, characterized in that it is formed.   The locking device according to claim 1, wherein the hole portion has a minimum width of 15 mm or more.   The locking device according to claim 1 or 2, wherein a separation distance between the smooth surface and the hole forming portion is 15 mm or more. The key head cover is
A case body in which the key head is housed in the distal end and the hole is formed in the proximal end;
4. The projection according to claim 1, further comprising: a protrusion that is formed on a front surface and a back surface of the case main body, and a top portion of which is located on a base end side of the case main body with respect to a center of gravity of the entire apparatus. The locking device according to one.   The locking device according to claim 4, wherein the protruding portion has a substantially hemispherical shape.   The said protrusion part has an inclined surface which inclines so that it may leave | separate gradually from the surface or back surface of this case main body as it goes to the base end part from the front-end | tip part of the said case main body. The locking device as described. The key head cover includes a case main body that houses the key head at a distal end portion and the hole portion is formed at a proximal end portion,
4. The case main body according to claim 1, wherein the case main body is bent to the front surface side or the back surface side in a central region that is the base end side of the case main body with respect to the center of gravity of the entire apparatus. The locking device as described.   The said case main body accommodates the said key head so that the said key can rotate freely, The locking device as described in any one of Claims 4-7 characterized by the above-mentioned.

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