JP2022033553A - Lock device - Google Patents

Abstract

To provide a lock device capable of improving anti-theft performance.SOLUTION: A lock device body 10 comprises: a housing 11; a plug 12; a lock member 13 installed in the housing 11 and movable to an engaging position in which engaging with a locked member 24 is performed, in a locked state and movable to an engaging release position in which engaging with the locked member 24 is canceled, in an unlocked state; a spring 14 installed in the housing 11 and energizing the lock member 13 to an engaging position; and a cap 15 installed in the housing 11 so as to sandwich the spring 14, with the lock member 13 and receiving the energizing force of the spring 14. The cap 15 is allowed to move from a first position to a second position closer to the lock member 13. The lock device body comprises a regulation part for regulating movement of the cap 15 from the second position to the first position.SELECTED DRAWING: Figure 2

Description

The present invention relates to a locking device.

As a wire rope for bicycles and motorcycles, a wire rope provided at one end of the wire rope and a lock device main body having a built-in cylinder lock are known to be connected (see, for example, Patent Document 1). .. In the wire rope described in Patent Document 1, a locking cylinder for locking the lock and a spring for urging the locking cylinder are provided inside the main body of the locking device, and the urging force of the spring provides the locking cylinder. The locked state of the lock rod and the locking cylinder, that is, the locked state is maintained.

Jitsukaisho 60-11975

In the wire rope described in Patent Document 1, when a hole is made in the housing of the lock device body by a striking force from the outside of the lock device body using a minus driver or the like, a spring or locking is performed by the minus driver or the like through this hole. By handling the cylinder, the locked state between the lock rod and the locking cylinder may be released, and the locked state may be released.

In view of the above circumstances, an object of the present invention is to provide a lock device capable of improving anti-theft performance.

The lock device according to the present invention includes an insertion portion into which a locked member is inserted, and is provided in a housing having a key insertion hole through which a key is inserted and inside the housing, and is inserted into the key insertion hole. A plug that is rotated between the locked position and the unlocked position by the key, and a locked member that is provided inside the housing and the plug is rotated to the locked position in a locked state. A lock member that can be moved to an engaging position to be engaged and moves to an disengaging position that disengages the locked member in an unlocked state in which the plug is rotated to the unlocking position. An urging member provided inside the housing to urge the lock member to the engaging position, and an urging member provided inside the housing so as to sandwich the urging member together with the lock member. The urging force receiving member includes an urging force receiving member, and the urging force receiving member is allowed to move from a first position to a second position approaching the lock member, and the urging force receiving member is allowed to move. It is provided with a regulation unit that regulates the movement from the second position to the first position.

In the locking device, the restricting unit may prevent the locking member from moving from the engaging position to the disengaging position at the second position.

In the locking device, the restricting unit press-fits the urging force receiving member into the housing to restrict the movement of the urging force receiving member from the second position to the first position. May be provided.

The locking device may include a plate-like protector comprising a first portion supported by the plug or housing and a second portion extending from the first portion toward the urging force receiving portion. Often, the second portion may be displaced inward of the housing by an external force to move the urging force receiving member to the second position.

According to the present invention, when a hole is made in the housing by a striking force from the outside of the housing using a flat-blade screwdriver or the like, the urging force receiving member approaches the lock member from the first position by the striking force. Since it moves to the second position and is restricted from moving from this second position to the first position, it is prevented that the urging member is handled through the hole made in the plate portion of the housing. Therefore, even if a hole is made in the housing by a striking force from the outside of the housing using a flat-blade screwdriver or the like, the engaged state between the locked member and the locked member is released and the locked state is prevented from being released. Because it can be done, the anti-theft performance can be improved.

FIG. 1 is a front view showing a bar lock device according to an embodiment of the present invention. FIG. 2 is a front sectional view showing the main body of the lock device shown in FIG. FIG. 3 is a plan partial cross-sectional view showing the lock device main body shown in FIG. FIG. 4 is a front partial cross-sectional view showing the lock device main body shown in FIG. FIG. 5 is a front sectional view showing the main body of the lock device in the unlocked state. FIG. 6 is a front sectional view showing a lock device main body according to a comparative example in a state of being hit by a flat-blade screwdriver. FIG. 7 is a front sectional view showing a lock device main body according to an embodiment in a state of being hit by a flat-blade screwdriver. FIG. 8 is a front sectional view showing a lock device main body according to another embodiment of the present invention. FIG. 9 is a front sectional view showing a lock device main body according to another embodiment in a state of being hit by a flat-blade screwdriver.

Hereinafter, the present invention will be described with reference to preferred embodiments. The present invention is not limited to the embodiments shown below, and can be appropriately modified without departing from the spirit of the present invention. Further, in the embodiments shown below, there are some parts where the illustration and explanation of the configuration are omitted, but the details of the omitted technology are within the range where there is no contradiction with the contents described below. Needless to say, publicly known or well-known techniques are applied as appropriate.

FIG. 1 is a front view showing a bar lock device 1 according to an embodiment of the present invention. As shown in this figure, the bar lock device 1 according to the present embodiment includes a chain-shaped restraint body 2 and a lock device main body 10. One end of the chain-shaped restraint 2 is fixed to the lock device main body 10. The other end of the chain-shaped restraint 2 is attached to and detached from the lock device main body 10. With the other end of the chain-shaped restraint 2 attached to the lock device main body 10, the chain-shaped restraint 2 constitutes a closed loop and restrains the restraint target A such as a motorcycle or a bicycle.

The chain-shaped restraint 2 includes a plurality of rods 21, a plurality of hinges 22, a fixing member 23, a locked member 24, and hinges 25 and 26. The plurality of rods 21 are connected via a plurality of hinges 22. Each rod 21 has a structure in which a metal rod is covered with a resin covering material. The hinge 22 connects the ends of the pair of rods 21 so as to be relatively rotatable. The plurality of hinges 22 are arranged in parallel.

The fixing member 23 is connected to the tip end side of the rod 21A at one end of the chain-shaped restraint 2 via a hinge 25. The hinge 25 connects the tip end side of the rod 21A and the base end side of the fixing member 23 so as to be relatively rotatable. On the other hand, the locked member 24 is connected to the tip end side of the rod 21B at the other end of the chain-shaped restraint 2 via a hinge 26. The hinge 26 connects the tip end side of the rod 21B and the base end side of the locked member 24 so as to be relatively rotatable. The hinges 25 and 26 and the plurality of hinges 22 are arranged in parallel.

The tip end side of the fixing member 23 is inserted into the lock device main body 10 through the opening on the left side surface of the lock device main body 10 in the drawing and is fixed to the lock device main body 10. As a result, the lock device main body 10 and the rod 21A are relatively rotatably connected to each other via the hinge 25 and the fixing member 23.

The tip end side of the locked member 24 is inserted into the lock device main body 10 through the opening on the right side surface of the lock device main body 10 in the drawing, and is detachably attached to the lock device main body 10. By mounting the locked member 24 on the locking device main body 10, the locking device main body 10 and the rod 21B are relatively rotatably connected via the hinge 26 and the locked member 24.

FIG. 2 is a front sectional view showing the lock device main body 10 shown in FIG. As shown in this figure, the lock device main body 10 includes a housing 11, a plug 12, a lock member 13, a spring 14, a cap 15, a cam 16, and a case 17. The case 17 is a rectangular parallelepiped resin box body that covers the housing 11. An opening 17A for inserting the key into the plug 12 is formed on the upper surface of the case 17 in the drawing, and an opening 17B for inserting the locked member 24 into the housing 11 is formed on the right surface of the case 17 in the drawing. Is formed, and an opening 17C for inserting the fixing member 23 into the housing 11 is formed on the left side surface of the case 17 in the drawing.

The housing 11 includes an outer housing 111, an upper housing 112, and a lower housing 113. The outer housing 111 is a rectangular parallelepiped metal box with an open upper side in the drawing. The outer housing 111 accommodates the upper housing 112 and the lower housing 113. The upper housing 112 and the lower housing 113 are combined vertically in the figure. The upper housing 112 closes the upper opening of the outer housing 111 in the drawing.

A rectangular first insertion hole 111A is formed on the right side surface of the outer housing 111 in the drawing, and a rectangular second insertion hole 111B is formed on the left side surface of the outer housing 111 in the drawing. The first insertion hole 111A is arranged on the bottom side of the right side surface of the outer housing 111 in the drawing, and the locked member 24 is inserted into the inside of the housing 11 through the first insertion hole 111A. On the other hand, the second insertion hole 111B is arranged on the bottom side of the left side surface of the outer housing 111 in the drawing, and the fixing member 23 is inserted into the inside of the housing 11 through the second insertion hole 111B. There is.

The upper housing 112 is a rectangular parallelepiped box with the lower side open in the figure. An opening 112A for inserting a key into the plug 12 is formed in the upper plate portion (hereinafter referred to as an upper plate) 112B of the upper housing 112 in the drawing. The upper housing 112 and the lower housing 113 form an inner housing, and accommodate a plug 12, a lock member 13, a spring 14, a cap 15, and a cam 16.

The lower housing 113 includes a first insertion portion 113A, a second insertion portion 113B, a plug support portion 113C, and a guide portion 113D. The first insertion portion 113A and the second insertion portion 113B are formed on the lower side in the drawing of the lower housing 113, and the plug support portion 113C and the guide portion 113D are formed on the upper side in the drawing of the lower housing 113. There is. The upper side of the lower housing 113 in the figure is open.

The first insertion portion 113A is a rectangular parallelepiped-shaped recess formed so as to face the first insertion hole 111A of the outer housing 111. The locked member 24 is inserted into the first insertion portion 113A. On the other hand, the second insertion portion 113B is a rectangular parallelepiped concave portion formed so as to face the second insertion hole 111B of the outer housing 111. A fixing member 23 is inserted into the second insertion portion 113B. Here, the pin 19 penetrates the lower housing 113 and the fixing member 23 and is fixed to the lower housing 113, so that the fixing member 23 is fixed to the lower housing 113.

The plug support portion 113C is provided on the left side of the lower housing 113 in the drawing, and the guide portion 113D is provided on the right side of the lower housing 113 in the drawing. The plug support portion 113C is provided on the upper side in the drawing of the second insertion portion 113B. The guide portion 113D is provided on the upper side in the drawing of the first insertion portion 113A.

The plug support portion 113C is formed in a cylindrical shape and rotatably supports the cylindrical plug 12. The axis of rotation of the plug 12 is parallel to the vertical direction in the figure. The key for rotating the plug 12 is inserted into and removed from the plug 12 along the rotation axis of the plug 12.

A cam 16 is provided at the bottom of the plug support portion 113C. The cam 16 is engaged with the lower end of the plug 12 and rotates integrally with the plug 12.

The guide portion 113D is formed in the shape of a square cylinder, and accommodates the prism-shaped lock member 13 so as to be movable in the vertical direction in the drawing. Here, an opening 113E is formed at the bottom of the guide portion 113D, and the lower portion of the lock member 13 projects into the first insertion portion 113A through the opening 113E. Further, a prismatic cap 15 is provided on the upper side of the lock member 13 in the drawing, and the lower portion of the cap 15 is fitted into the guide portion 113D so as to be movable in the vertical direction in the drawing.

FIG. 3 is a plan partial cross-sectional view showing the lock device main body 10 shown in FIG. In this figure, the plane cross section of the case 17, the outer housing 111 and the upper housing 112 is shown, and the plane inside the upper housing 112 is shown. As shown in this figure, a slit 113F is formed between the internal space of the plug support portion 113C and the internal space of the guide portion 113D, and the internal space of the plug support portion 113C and the internal space of the guide portion 113D are formed. Is communicated by the slit 113F.

FIG. 4 is a front partial cross-sectional view showing the lock device main body 10 shown in FIG. In this figure, the front cross section of the case 17, the outer housing 111 and the upper housing 112 is shown, and the inner front of the outer housing 111 and the upper housing 112 is shown. As shown in these figures, the upper portion of the plug 12 and the upper portion of the cap 15 project from the upper end of the lower housing 113 toward the upper plate 112B and are housed in the upper housing 112.

As shown in FIG. 2, the plug 12 is a cylindrical body rotatably supported by the plug support portion 113C. The opening 112A of the upper housing 112 is formed so as to face the upper surface of the plug 12 in the drawing, and the key insertion port 12A is formed on the upper surface of the plug 12 in the drawing. A convex portion 12B is formed on the lower surface of the plug 12 in the drawing. On the other hand, the annular cam 16 is formed with a recess 16A that fits with the convex portion 12B. By inserting the genuine key into the key insertion slot 12A through the opening 112A, the plug 12 and the cam 16 can be integrally rotated between the locking position and the unlocking position.

The lock member 13 includes a main body portion 13A, a lock portion 13B, and a cam portion 13C. The main body portion 13A is a prismatic body, and is housed in the guide portion 113D so as to be movable in the vertical direction in the drawing. A circular recess 13D into which the lower end of the spring 14 is fitted is formed on the upper surface of the main body 13A in the drawing.

The lock portion 13B is a frontal trapezoidal portion formed on the lower side of the main body portion 13A in the drawing, and protrudes from the opening 113E to the first insertion portion 113A. The lock portion 13B includes an inclined surface 13E inclined to the upper right in the figure from the tip of the lock portion 13B. On the other hand, the locked member 24 is formed with a fitting recess 24A. The fitting recess 24A includes an inclined surface 24B inclined from the bottom to the upper right in the figure. The lock portion 13B and the fitting recess 24A are fitted to each other in a state where the inclined surface 24B and the inclined surface 13E of the lock portion 13B are in contact with each other. Further, when the locked member 24 is inserted into the first insertion portion 113A, the tip of the locked member 24 (the left end portion in the drawing) and the inclined surface 13E of the lock portion 13B are in contact with each other. The lock member 13 rises.

The cam portion 13C projects into the slit 113F from the left side surface of the main body portion 13A in the drawing. On the other hand, a cam portion 16B is formed on the outer peripheral surface of the annular cam 16, and the cam portion 13C and the cam portion 16B are in contact with each other. When the plug 12 and the cam 16 are rotated to the locked position, the height of the contact point between the cam portion 13C and the cam portion 16B becomes the lowest, and the lock portion 13B of the lock member 13 and the locked member 24 are fitted. Fits with the recess 24A. On the other hand, when the plug 12 and the cam 16 are rotated to the unlocked position, the height of the contact point between the cam portion 13C and the cam portion 16B becomes the highest, and the lock portion 13B of the lock member 13 and the locked portion 13B are locked. The fitting of the member 24 with the fitting recess 24A is released.

The spring 14 is a compression coil spring. The lower end of the spring 14 is fitted into the recess 13D of the lock member 13. The spring 14 can be elastically expanded and contracted in the vertical direction in the figure.

The cap 15 is a square cylinder. The lower portion (hereinafter referred to as the lower portion) 15B of the cap 15 in the figure is slidably housed in the guide portion 113D in the vertical direction in the figure. A circular recess 15A into which the upper end of the spring 14 is fitted is formed on the lower surface of the lower portion 15B of the cap 15. The lower portion 15B of the cap 15 can be inserted into the guide portion 113D, whereas the upper portion (hereinafter referred to as the upper portion) 15C in the drawing of the cap 15 cannot be inserted into the guide portion 113D. ing.

Here, as shown in FIGS. 3 and 4, a pair of interference portions 15D are formed on the upper portion 15C of the cap 15. One interference portion 15D is formed on the front surface (hereinafter referred to as the front surface) of the upper portion 15C of the cap 15 in the drawing, and the other interference portion 15D is the inner surface (hereinafter referred to as the front surface) of the upper portion 15C of the cap 15 in the drawing. , Called the back). The pair of interference portions 15D are ribs protruding from the front surface or the rear surface of the upper portion 15C of the cap 15. The pair of interference portions 15D are arranged symmetrically with respect to the axial center of the cap 15. The pair of interference portions 15D and the upper end of the guide portion 113D are in contact with each other, so that the upper portion 15C of the cap 15 does not enter the inside of the guide portion 113D.

The interference portion 15D extends vertically from the lower end to the upper end of the front surface or the rear surface of the upper portion 15C of the cap 15. Details will be described later, but when a striking force using a flat-blade screwdriver or the like acts on the cap 15 from the upper side in the figure, the interference portion 15D is press-fitted into the guide portion 113D, so that the upper portion 15C of the cap 15 is pressed. It is fixed to the guide portion 113D of the lower housing 113.

As shown in FIG. 2, the spring 14 is sandwiched between the lock member 13 and the cap 15 and elastically contracts. The lock member 13 is urged to the lower side in the figure by the spring 14, and the cap 15 is urged to the upper side in the figure by the spring 14. Here, in the state where the plug 12 is located at the locked position, the cap 15 is pressed against the lower surface of the upper plate 112B of the upper housing 112, while the cam portion 13C of the lock member 13 is pressed against the cam portion 16B of the cam 16. It is pressure-welded, and the lock portion 13B of the lock member 13 is pressure-welded to the fitting recess 24A of the locked member 24. In this state, the locked member 24 cannot be pulled out from the first insertion portion 113A.

FIG. 5 is a front sectional view showing the lock device main body 10 in the unlocked state. As shown in this figure, when the plug 12 is in the unlocked position, the cap 15 is pressed against the lower surface of the upper plate 112B of the upper housing 112, while the cam portion 13C of the lock member 13 is the cam 16. The lock portion 13B of the lock member 13 is pressed against the cam portion 16B of the above, and does not fit into the fitting recess 24A of the locked member 24. In this state, the locked member 24 can be pulled out from the first insertion portion 113A.

FIG. 6 is a front sectional view showing a lock device main body 10C according to a comparative example in a state of being hit by a flat-blade screwdriver MD. As shown in this figure, in the lock device main body 10C according to the comparative example, the cap 15 is fixed to the upper end of the guide portion 113D of the lower housing 113. The cap 15 is located at a first position close to or in contact with the lower surface of the upper plate 112B of the upper housing 112. Therefore, when the flat-blade screwdriver MD penetrates the upper plate 112B of the upper housing 112, the hole made in the upper plate 112B and the cap 15 are close to each other, and the cap 15 is easily hit by the flat-blade screwdriver MD. When a hole is made in the cap 15 by the striking force of the flat-blade screwdriver MD, the spring 14 can be accessed, and by removing the spring 14, the locking member 13 and the locked member 24 are released from the fitting. There is a possibility that it will be done.

FIG. 7 is a front sectional view showing a lock device main body 10 in a state of being hit by a flat-blade screwdriver MD. As shown in FIGS. 2 and 7, in the lock device main body 10 according to the present embodiment, the cap 15 is supported by the lower housing 113 so as to be movable in the vertical direction in the drawing. The cap 15 is normally located at the first position in contact with the lower surface of the upper plate 112B of the upper housing 112.

As shown in FIG. 7, when the flat-blade screwdriver MD penetrates the upper plate 112B of the upper housing 112 and reaches the cap 15, the cap 15 is pushed down from the first position described above to the lower side in the drawing. Here, normally, the lower end of the pair of interference portions 15D and the upper end of the lower housing 113 are in contact with each other (see FIG. 4), but the interference portion 15D and the upper portion 15C of the cap 15 are hit by a flat-blade screwdriver MD. It is press-fitted into the inside of the guide portion 113D. As a result, the cap 15 is fixed to the guide portion 113D of the lower housing 113 at a second position away from the upper plate 112B of the upper housing 112 and close to the lock member 13. Therefore, when the flat-blade screwdriver MD penetrates the upper plate 112B of the upper housing 112, the distance from the hole made in the upper plate 112B to the cap 15 becomes longer than in the comparative example, and the cap 15 by the flat-blade screwdriver MD becomes longer. It becomes difficult to hit. Therefore, it becomes difficult to make a hole in the cap 15 due to the striking force of the flat-blade screwdriver MD, it becomes difficult to access the spring 14, and it becomes difficult to release the fitting between the lock member 13 and the locked member 24. As a result, the anti-theft performance can be improved.

Here, in a state where the cap 15 is fixed to the guide portion 113D of the lower housing 113 at the second position, the upper end of the lock member 13 and the lower end of the cap 15 come into contact with each other or through a slight gap. opposite. In this state, the lock member 13 is restricted from rising by the cap 15, so that the locked state of the lock member 13 and the locked member 24 is maintained. Therefore, even if the cap 15 is punctured by the flat-blade screwdriver MD and the spring 14 is handled, the fitting between the lock member 13 and the locked member 24 cannot be released.

FIG. 8 is a front sectional view showing the lock device main body 100 according to another embodiment of the present invention. The same reference numerals are given to the same configurations as those of the lock device main body 10 according to the above-described embodiment, and the description of the above-mentioned embodiment is incorporated.

As shown in this figure, the lock device main body 100 according to the present embodiment includes a protector 18. The protector 18 is a rectangular metal plate material, and is provided between the upper plate 112B of the upper housing 112 and the upper surface of the plug 12 and the upper surface of the cap 15. The protector 18 is formed with an opening 18A having the same shape and dimensions as the opening 112A of the upper housing 112. The opening 18A and the opening 112A are arranged concentrically.

Here, the protector 18 is not fixed to the upper housing 112. The peripheral edge portion (hereinafter referred to as a support portion) 18B of the opening 18A of the protector 18 is sandwiched between the upper plate 112B of the upper housing 112 and the upper surface of the plug 12. The plug 12 is supported by the plug support portion 113C so as not to be displaced in the vertical direction in the figure. That is, the support portion 18B of the protector 18 is sandwiched between the upper plate 112B of the upper housing 112 and the plug 12, which cannot be displaced relative to each other.

On the other hand, the right side portion (hereinafter referred to as a non-support portion) 18C in the figure of the protector 18 is sandwiched between the upper plate 112B of the upper housing 112 and the upper surface of the cap 15. The cap 15 is supported so as to be displaceable in the vertical direction in the figure by the urging force of the spring 14. That is, the non-support portion 18C of the protector 18 is sandwiched between the upper plate 112B of the upper housing 112 and the cap 15 which are mutually displaceable. Therefore, the protector 18 is in a cantilever state in which the support portion 18B is in a fixed support state and the non-support portion 18C is in a free state with respect to the striking force from the upper side in the drawing.

FIG. 9 is a front sectional view showing a lock device main body 100 according to the present embodiment in a state of being hit by a flat-blade screwdriver MD. As shown in this figure, when the flat-blade screwdriver MD penetrates the upper plate 112B of the upper housing 112, the striking force of the flat-blade screwdriver MD acts on the non-support portion 18C of the protector 18. The protector 18 is in a cantilevered state. The support portion 18B of the protector 18 is in a fixed support state against the striking force of the minus driver MD, and the non-support portion 18C is in a free state against the striking force of the minus driver MD. Therefore, the protector 18 bends under the impact force of the flat-blade screwdriver MD. While the state of the support portion 18B is unchanged, the non-support portion 18C is in a state of being inclined to the lower right in the figure from the boundary with the support portion 18B. As a result, when the flat-blade screwdriver MD penetrates the upper plate 112B of the upper housing 112, the distance from the hole made in the upper plate 112B to the cap 15 is longer than in the comparative example, and in addition, the protector 18 Since the non-support portion 18C blocks access to the cap 15 of the flat-blade screwdriver MD, it becomes difficult for the flat-blade screwdriver MD to hit the cap 15. Therefore, it becomes difficult to make a hole in the cap 15 due to the striking force of the flat-blade screwdriver MD, it becomes difficult to handle the spring 14 by the flat-blade screwdriver MD or the like, and the locking member 13 and the locked member 24 due to the urging force of the spring 14 It becomes difficult to release the mating.

Although the locking device according to the present invention has been described above based on the embodiments, the present invention is not limited to this, and changes may be made without departing from the spirit of the present invention, or other inventions may be made. Techniques may be combined.

For example, in the above-described embodiment, the upper portion 15C of the cap 15 and the rib-shaped interference portion 15D are provided as the press-fitting fixing portions, but the cap 15 is not limited to this, and the cap 15 is placed on the lower housing 113 at the second position by the striking force. Any configuration may be used as long as it is fixed. For example, the rib-shaped interference portion 15D is provided on the upper portion 15C of the cap 15, but the present invention is not limited to this, and the interference portion 15D may be provided on the inner wall of the guide portion 113D. Further, the upper portion 15C may be formed in a wedge shape so that the upper portion 15C itself is fixed to the lower housing 113 by a striking force.

Further, in the above-described embodiment, the fixing member 23 is fixed to the locking device main bodies 10 and 100 so that the locked member 24 can be attached and detached. May be removable. In this case, the lock member 13, the spring 14, the cap 15, the cam portion 16B of the cam 16, and the guide portion 113D of the lower housing 113 may be provided symmetrically.

Further, in the above-described embodiment, the cap 15 is fixed to the lower housing 113 by the interference portion 15D at the second position, but the cap 15 is completely fixed to the lower housing 113 at the interference portion 15D at the second position. It is not essential to be fixed. For example, the cap 15 in the lower housing 113 press-fitted state at the second position may be further pressed into the lock member 13 side by receiving an external force. That is, the movement of the cap 13 from the second position to the first position may be restricted.

Further, in the above-described embodiment, the case where a hole is made in the upper plate 112B of the housing 11 provided with the opening 112A which is a key insertion hole has been described as an example, but this is not essential. For example, when the cap 15 is urged by the spring 14 against the side surface of the housing in which the key insertion hole is not formed, the above-mentioned anti-theft performance is exhibited when a hole is made in the side surface. To.

10: Locking device body (locking device)
11: Housing 112A: Opening (key insertion hole)
113A: First insertion part (insertion part)
12: Plug 13: Lock member 14: Spring (urgency member)
15: Cap (force receiving member)
15C: Upper part (regulatory part, press-fitting fixing part)
15D: Interference part (regulatory part, press-fitting fixing part)
18: Protector 18B: Support part (first part)
18C: Non-support part (second part)
24: Locked member 100: Locking device body (locking device)

Claims (4)

A housing with an insertion part into which a locked member is inserted and a key insertion hole through which a key is inserted.
A plug provided inside the housing and rotated between the locking position and the unlocking position by the key inserted into the key insertion hole.
Provided inside the housing, the plug can be moved to an engaging position engaged with the locked member in a locked state in which the plug is rotated to the locked position, and the plug rotates to the unlocked position. A lock member that moves to an disengagement position that disengages the locked member in the operated unlocked state, and
An urging member provided inside the housing to urge the lock member to the engaging position, and
It is provided inside the housing so as to sandwich the urging member together with the lock member, and is provided with an urging force receiving member that receives the urging force of the urging member.
The urging force receiving member is allowed to move from the first position to the second position approaching the lock member.
A locking device including a regulating unit that regulates the movement of the urging force receiving member from the second position to the first position. The locking device according to claim 1, wherein the regulating unit prevents the locking member from moving from the engaging position to the disengaging position at the second position. The regulating unit includes a press-fitting fixing unit that presses the urging force receiving member into the housing to restrict the movement of the urging force receiving member from the second position to the first position. Or the locking device according to 2. A plate-shaped protector comprising a first portion supported by the plug or the housing and a second portion extending from the first portion toward the urging force receiving portion.
The locking device according to any one of claims 1 to 3, wherein the second portion is displaced toward the inside of the housing by an external force to move the urging force receiving member to the second position.

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