JP2014079319A - Locking implement for strap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking implement for a strap, having a structure which has a small number of components, allowing reduction of production cost, having sufficient strength, not having risk of disconnection even when unintended force is applied, capable of certainly holding engagement, and having excellent operability and designability.SOLUTION: A locking implement for a strap includes: a body member having a strap mounting part, and having an engagement hole with a large-diameter part and a small-diameter part communicating with each other, through which a locking member attached to a locked body is inserted to slidingly move from the large-diameter part to the small-diameter part, so that locking is performed; and a lock member rotatably mounted to the body member, and restricting separation of the locking member from the engagement hole. The lock member has: a movement restriction part restricting the slide movement of the locked locking member from the small-diameter part to the large-diameter part; and a lock part restricting a turn of the lock member and maintaining a restricting state of the movement restriction part.

Description

  The present invention relates to a detachable strap locking tool used when attaching an end portion of a strap belt to an attached body such as a bag, a case, or a bag.

  The most common type of strap locking device of this type is to attach ring-shaped metal fittings on both sides of a bag, case, bag, etc., and attach hooks attached to both ends of a shoulder strap belt to a ring It is the structure of hooking and connecting to the metal fittings.

  However, the strap locking device using such a hook does not have sufficient strength and cannot be applied when the weight of the mounted body is large. In addition, this type of strap fastener has a problem that the appearance of the ring-shaped fitting mounting portion is not good when the strap is not used.

  As a locking device that eliminates the problems associated with conventional strap locking devices using such hooks, a round grooved fitting is provided on the bag side that is the mounted body, and this circular grooved fitting is detachable. A belt hook device that engages with a belt has been proposed (Patent Document 1).

  The belt hook device according to Patent Literature 1 includes a pedestal, a guide portion, a stopper, and an arm portion. A strap mounting portion, a through hole, a spacer portion, and an arm support portion are formed on the base. The guide portion is made of a U-shaped frame and is integrally fixed with a gap by a spacer portion. The stopper is a cylindrical rod body, and an inclined surface is formed on one end side, and a connecting portion that is connected to the end portion of the arm portion is formed on the other end side. The arm part is pivotally supported by an arm support part formed on the pedestal, and a spring is provided as an urging means between the arm part and the pedestal to urge the stopper toward the guide part side. Yes. When attaching to the round grooved bracket attached to the mounted body, if the groove of the round grooved bracket is inserted from the open part of the guide part, the locking part of the round grooved bracket and the inclined surface of the stopper And the stopper is pushed down against the biasing force of the spring, so that the locking portion can enter the frame of the guide portion. When the locking portion is located in the frame, the stopper protrudes by the biasing force of the spring and prevents the locking portion from coming off. On the other hand, when removing from the round grooved fitting, press the pressing part of the arm part, retract the stopper from the guide part side of the pedestal, and easily remove it by moving the pedestal in the opposite direction to the mounting. Can do.

Registered Utility Model No. 2587438

  The belt hook device according to Patent Document 1 has sufficient strength, but has a problem in that the configuration is complicated and the manufacturing cost increases. In addition, when an unintended force is applied and the pressing portion of the arm portion is pressed, there is a possibility that the round grooved metal fitting is detached from the belt hook device.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a strap locking device that has a simple structure with a small number of parts, can reduce manufacturing costs, and has sufficient strength.

  Another object of the present invention is to provide a strap locking device that can securely hold the engagement without risk of disconnection even when an unintended force is applied.

  Still another object of the present invention is to provide a strap locking tool that is excellent in operability and design.

  According to the present invention, the strap locking tool has the strap mounting portion, the large diameter portion and the small diameter portion that communicate with each other, and the locking member attached to the locked body is inserted through the large diameter portion. Main body member having an engagement hole that is locked by sliding from the portion to the small diameter portion, and a lock member that is rotatably attached to the main body member and restricts the engagement member from being disengaged from the engagement hole And. This lock member maintains a state in which the movement restricting portion is restricted by restricting the sliding movement of the locked engaging member and restricting the sliding movement from the small diameter portion to the large diameter portion of the engaging member. And a lock portion.

  As described above, the strap locking device of the present invention mainly includes the main body member and the lock member, and the lock member restricts the sliding movement of the locking member from the small diameter portion to the large diameter portion by the movement restricting portion. And it is comprised so that rotation of lock member itself may be restrict | limited by a lock part, and the control state of a movement control part may be maintained. As described above, since the locking operation is possible with a simple structure with a small number of parts such as the main body member and the lock member, the manufacturing cost can be reduced, and the rotation of the regulating member that regulates the slide movement can be achieved. Because it is configured to limit the release of regulation by the lock part, it has sufficient strength and there is no risk of disconnection even when unintended force is applied, ensuring engagement Can be held.

  The lock member includes a plate-like operation portion for rotating the lock member, and a rotation fulcrum portion that is pivotally supported by the main body member and formed on the operation portion in a plane different from the plane of the operation portion. Further, it is preferable that the lock portion is configured to limit the rotation of the operation portion with respect to the rotation fulcrum portion. Thereby, operation of a lock member becomes easy.

  The lock part has a protrusion with a convex cross section provided at one edge of the operation part, and the main body member has an edge through which the protrusion can pass while abutting and pressing, A groove is provided outside the edge to allow elastic deformation of the edge when the protrusion is passed, and the protrusion of the lock portion engages with the edge of the main body member to rotate the operating portion. It is also preferable that the rotation about the moving fulcrum is limited. Thereby, the operational feeling is good when locking, and there is no risk of disconnection when an unintended force is applied, and the engagement can be reliably maintained.

  The lock member further includes an arm portion that protrudes from the movement restricting portion toward the main body member, and a distal end portion of the arm portion includes a first flat surface that can contact the inner wall of the main body member, It is also preferable that an arcuate surface that is continuous with the flat surface and can come into contact with the inner wall and a second flat surface that is continuous with the arcuate surface and can come into contact with the inner wall are provided. Thereby, the lock member can be held at the fully open position in the open / close range, and the locking member attached to the locked body such as a bag can be easily inserted into the engagement hole.

  The first plane of the arm portion is configured to contact and press the inner wall of the main body member to hold the operating portion in the fully open position, and the second plane of the arm portion contacts and presses the inner wall of the main body member. It is also preferable that the operation portion is pressed and held in the fully closed position. Thereby, a locking member can be hold | maintained in a fully open or fully closed position.

  It is also preferable that the movement restricting portion, the rotation fulcrum portion, the protrusion and the arm portion are integrated with the operation portion. As a result, the number of parts is small, the cost is not high, the strength is sufficient, and it is possible to produce by resin molding.

  The main body member is a box-like body in which the locking member is housed, and the operation part closes the opening of the box-like body, and the lid body in which the movement restricting part, the rotation fulcrum part and the arm part are provided inside. It is also preferable. The locking member attached to the locked body such as a bag, the movement restricting portion, and the like are not exposed to the outside, the appearance is good, and the design can be improved.

  The rotation fulcrum portion is a pair of cylindrical shaft portions, and the main body member is a pair of bearing portions into which the pair of cylindrical shaft portions are rotatably fitted, and a pair for pressing the pair of cylindrical shaft portions. It is also preferable to have an inclined surface. As a result, the pair of cylindrical shaft portions can be pushed into the pair of bearing portions, and assembly is facilitated.

  According to the strap locking device of the present invention, it is possible to perform the locking operation with a simple structure with a small number of parts, so that the manufacturing cost can be reduced, and the strap has sufficient strength and is not intended. Even when a force is applied, there is no risk of disconnection, and the engagement can be reliably maintained. Further, since the lock member is also used as a lid of the housing portion, the locking member fixed to the bag or the like, the movement restricting portion for restricting the sliding movement of the locking member, etc. are not exposed to the outside, and the appearance is good. The effect which was excellent in operativity and design property is acquired.

It is a perspective view which shows roughly the structure of the latching tool for straps concerning this invention. It is sectional drawing which shows the structure and opening / closing state of the latching tool for straps of FIG. It is a perspective view which shows roughly the structure of the main-body member of the latching tool for straps of FIG. It is a perspective view which shows schematically the structure of the locking member of the latching tool for straps of FIG.

  Hereinafter, embodiments of the strap locking device according to the present invention will be described with reference to the drawings.

  FIG. 1 shows a configuration of a strap locking device 100 according to an embodiment of the present invention, FIG. 2 shows a cross section of the strap locking device 100, and FIG. Shows a state in which the lock member 20 is in the fully open position, (b) shows a state in which the lock member 20 is in a semi-closed state (a state in which the protrusion strikes the edge), and (c) shows a state in which the lock member 20 is closed (in a locked state). ). 3 shows the configuration of the main body member 10, and FIG. 4 shows the configuration of the lock member 20. In FIG. 4, the back side of the lock member 20 is shown as the top surface.

  As shown in FIGS. 1 to 4, the strap locking device 100 according to this embodiment includes a main body member 10 and a lock member 20. The strap locking device 100 of this embodiment is attached to both ends of the strap, and the main body member 10 of each strap locking device 100 is attached to a locked body that is a bag in this embodiment. The locking member 30 can be engaged and disengaged. The lock member 20 is rotatably attached to the main body member 10. On the other hand, as shown in FIG. 1, the locking member 30 includes a relatively large-diameter head portion 31, a relatively small-diameter neck portion 32, and a base portion 33 that is attached to a bag.

  The main body member 10 is formed, for example, by injection molding a resin material, and is a box-like body in which the locking member 30 is accommodated when locked. As shown in FIG. 3, the main body member 10 includes an accommodating portion 11, a pair of bearing portions 12, a strap mounting portion 13, an engagement hole 14, a groove 15, and protrusions 16 a and 16 b. It has.

  The accommodating portion 11 is for accommodating the lock member 20 and the head portion 31 of the engaged locking member 30. The housing part 11 has an elastically deformable end edge 11a on the base end side (strap mounting side), and a step part 11b that determines the closing position of the lock member 20 on the tip side (opposite side of the strap mounting side). A curved concave portion 11c is formed at the center of the tip edge of the step portion 11b for a finger to enter and hook on the lock member 20 when the lock member 20 is opened. Reinforcing portions 11 d are provided on both side surfaces of the accommodating portion 11.

  The pair of bearing portions 12 are provided at positions facing each other on the inner side of the long side of the accommodating portion 11, and rotatably support the cylindrical shaft portions 22 a and 22 b serving as the rotation fulcrum portions of the lock member 20. Is. Cutout portions 12 a and 12 b having inclined bottom surfaces are formed from the pair of bearing portions 12 to the upper edge of the accommodating portion 11.

  The strap mounting portion 13 is a rectangular through hole that is provided on the proximal end side of the main body member 10 and penetrates in the thickness direction of the main body member 10. In addition, the shape of this strap mounting part 13 is not limited to a rectangle.

  The engagement hole 14 is a dharma-type through-hole that is provided on the bottom surface of the accommodating portion 11 and has a large-diameter portion 14a and a small-diameter portion 14b. The large diameter portion 14a of the engagement hole 14 is located on the proximal end side (the strap mounting portion 13 side), the small diameter portion 14b is located on the distal end side, and the large diameter portion 14a and the small diameter portion 14b are configured to communicate with each other. ing. The locking member 30 attached to a bag or the like is inserted into the large-diameter portion 14a and slid from the large-diameter portion 14a to the small-diameter portion 14b.

  The groove 15 is provided close to the outer side of the base end side of the end edge 11a of the accommodating portion 11, and the end edge 11a is elastically moved when the protrusion 24 of the lock member 20 passes while contacting and pressing. It is for deforming.

  The protrusions 16 a and 16 b are provided so as to protrude from the bottom surface of the housing portion 11, and the surface facing the bearing portion 12 is formed in a tapered shape. That is, the outer side is an inclined surface (or a circular arc surface), the rear end surfaces of the cylindrical shaft portions 22a and 22b of the lock member 20 are pressed toward the bearing portion 12, and the bearing portions 12 of the cylindrical shaft portions 22a and 22b are pressed. It has a function to prevent slipping out.

  The lock member 20 is formed by injection molding a resin material. As shown in FIG. 4, the operation member 21, a pair of cylindrical shaft portions 22 a and 22 b as rotation fulcrum portions, and a cylindrical shaft portion. The movement restricting portion 23 provided between 22a and 22b for restricting the sliding movement of the engaged locking member 30, the protrusion 24 for maintaining the locked state, and the locking member 20 are held in the fully open position. Arm 25.

  The operation portion 21 is for an operator to turn the lock member 20 by placing a finger on this portion. In the present embodiment, the operation portion 21 is formed in a rectangular flat plate shape, and the opening of the housing portion 11 in the main body member 10. It can be inserted into the portion, and in the closed state (locked state), it becomes a lid that covers the accommodating portion 11.

  The pair of columnar shaft portions 22 a and 22 b are formed so as to protrude from the back surface so as to be located in a plane different from the plane of the operation portion 21, and the front end surface portions of these shaft portions are in the direction of both side surfaces of the operation portion 21. Protrusively provided. That is, the pair of columnar shaft portions 22a and 22b are formed integrally with the end portions of the pair of L-shaped rising portions 22 formed on the back surface of the operation portion 21, respectively, and the front end surface portions thereof are the operation portion. 21 are formed to extend outward in the direction of both side surfaces. The end portions of the pair of rising portions 22 are elastically deformable. When the lock member 20 is attached to the main body member 10, the end surfaces of the rising portions 22 are caused by the front end surfaces of the cylindrical shaft portions 22 a and 22 b being in contact with and pressed against the notches 12 a and 12 b of the bearing portion 12. Since it is elastically deformed, the cylindrical shaft portions 22 a and 22 b are fitted into the bearing portion 12.

  The movement restricting portion 23 is a rectangular parallelepiped formed to protrude from the back surface of the operation portion 21 between the pair of rising portions 22. In the closed state of the lock member 20, the movement restricting portion 23 is located at a substantially central portion of the large diameter portion 14 a of the engagement hole 14. Thereby, the sliding movement of the engaged locking member 30 to the large diameter portion 14 a is restricted, and the locking member 30 is prevented from coming out of the engagement hole 14.

  The protrusion 24 is provided along one of the edge portions of the operation portion 21 (the edge portion corresponding to the proximal end side of the main body member 10) along the edge, has a convex cross section, and has a predetermined length. Is. The protrusion 24 abuts against the edge 11a of the housing portion 11 of the main body member 10 when the operation portion 21 is rotated in the opening direction from the fully closed state using the cylindrical shaft portions 22a and 22b as the support shaft. The edge 11a is pressed in the proximal direction. In this way, the rotation of the operation portion 21 with respect to the rotation fulcrum is restricted by the contact and pressing action between the protrusion 24 of the operation portion 21 and the edge 11a of the accommodating portion 11, and this is the limit of the lock portion of the present invention. It becomes an action.

  On the other hand, since the groove 15 is provided in the main body member 10, the end edge 11a of the accommodating portion 11 is elastically deformed by the pressing of the protrusion 24, and the pressing force of the protrusion 24 is equal to or more than the resistance force by the elastic deformation. If it becomes, the protrusion 24 can slide and pass the surface of the edge 11a. When the operation unit 21 is opened from the closed state, the rotation of the operation unit 21 with respect to the rotation fulcrum is restricted by the contact and pressing action between the protrusion 24 of the operation unit 21 and the edge 11a of the storage unit 11. To remain locked. Similarly, in the case where the operating portion 21 is opened from the closed state, the protrusion 24 passes through the edge 11a due to the deformation action of the edge 11a when the pressing force of the protrusion 24 exceeds the resistance force due to elasticity. The restriction of rotation is released and the locked state is released. On the contrary, when closing from the open state, the protrusion 24 contacts the end edge 11a, and the protrusion 24 is deformed by the deforming action of the end edge 11a when the pressing force of the protrusion 24 exceeds the elastic resistance. Passes through the edge 11a and is locked. Thereby, the operational feeling of the locking operation is improved.

  The arm 25 is formed so as to protrude from the side surface of the movement restricting portion 23 toward the edge portion where the protrusion 24 is present, and at the tip portion thereof, a first flat surface 25b constituting the top surface, A circular arc surface 25a continuous to the first flat surface 25b and a second flat surface 25c continuous to the circular arc surface 25a are provided. When the lock member 20 is in the fully open position (the maximum open position of the open / close range) (see FIG. 2A), the first flat surface 25b abuts and presses against the bottom surface of the housing portion 11 to open the lock member 20 to the fully open position. The locking member 30 fixed to the bag or the like can be easily inserted into the engagement hole 14. When the lock member 20 is rotated from this state in the closing direction, the arcuate surface 25a slides while contacting the bottom surface of the accommodating portion 11, and thus the lock member 20 can be smoothly rotated (FIG. 2). (See (b)). When the lock member 20 is in the fully closed position (locked state), the second flat surface 25c can be in contact with and pressed against the bottom surface of the housing portion 11 to hold the lock member 20 in the fully closed position (FIG. 2 ( c)).

  When manufacturing the strap locking device 100 of the present embodiment, the main body member 10 and the lock member 20 are manufactured separately, and the main body member 10 is mounted and assembled. The lock member 20 is attached to the main body member 10 by aligning the cylindrical shaft portions 22a and 22b with the cutout portions 12a and 12b of the main body member 10 and pushing them downward (inside the housing portion 11). Thereby, the front-end | tip part of cylindrical shaft part 22a and 22b is pressed inside by the inclined bottom face of notch part 12a and 12b, and finally enters in a pair of bearing part 12. FIG. As a result, the lock member 20 is rotatably mounted and the assembly is completed.

  The strap attaching portion 13 of the strap locking device 100 assembled in this way is inserted into the strap belt B or the attachment member provided at the tip of the strap belt, and a strap with the strap locking device 100 is created. In order to attach the strap belt B thus created to a bag or the like, first, as shown in FIG. 1, the lock member 20 of the strap locking tool 100 is opened to the fully open position. Next, the head 31 of the locking member 30 attached to the bag or the like is inserted into the engagement hole 14 of the main body member 10, and the strap locking device 100 is pulled upward with respect to the locking member 30 of the bag. The locking member 30 is slid from the large diameter portion 14a of the engagement hole 14 to the small diameter portion 14b. Thereafter, the lock member 20 is turned to a closed state (fully closed position). As a result, the movement restricting portion 23 of the lock member 20 prevents the locking member 30 engaged with the engagement hole 14 from sliding to the large diameter portion 14 a, and the locking member 30 comes out of the engagement hole 14. The strap belt B with the strap locking device 100 is securely attached to the bag or the like.

  On the other hand, in order to remove the strap belt B with the strap locking device 100 from the bag or the like, first, the lock member 20 is rotated from the closed position to the fully opened position to release the lock. Next, the strap locking device 100 is shifted downward with respect to the locking member 30 of the bag, and the locking member 30 is slid from the small diameter portion 14 b to the large diameter portion 14 a of the engagement hole 14. Then, the locking member 30 is extracted from the large diameter portion 14 a of the engagement hole 14. Thereby, the strap belt B with the strap locking tool 100 is removed from the bag or the like.

  As described above, since the strap locking device 100 of the present embodiment includes the main body member 10 and the lock member 20, the strap locking device 100 can be locked with a simple structure with a small number of parts such as the main body member 10 and the lock member 20. Since the operation is possible, the manufacturing cost can be reduced. Moreover, the lock member 20 restricts the sliding movement of the locking member 30 from the small diameter portion 14 b of the engagement hole 14 to the large diameter portion 14 a by the movement restricting portion 23, and the protrusion 24 of the operation portion 21 of the lock member 20. The lock member 20 is configured to lock the restricted state of the movement restricting portion 23 by restricting the rotation of the lock member 20 itself. Thus, since it is comprised so that rotation of the movement control part 23 which controls a slide movement may be restrict | limited by the effect | action of the protrusion 24, even when it has sufficient intensity | strength and an unintended force is applied. There is no risk of disconnection, and the engagement can be reliably maintained. Further, the lock member 20 serves as a lid of the housing portion 11, and the locking member 30 fixed to the bag or the like and the movement restricting portion 23 that restricts the sliding movement of the locking member 30 are not exposed to the outside, so that the appearance is good. The operability and design can be improved.

  In addition, by providing the groove 13 for allowing the elastic deformation of the edge 11a when the protrusion 24 passes outside the end edge 11a contacting the protrusion 24 of the housing portion 11, the protrusion 24 Due to the deforming action of the end edge 11a when the pressing force exceeds the resistance force due to the elasticity, the protrusion 24 passes through the end edge 11a, the restriction of the rotation is released, and the locked state is released. Furthermore, the feeling of operation at the time of locking and unlocking is good, and the risk of disconnection is eliminated even when an unintended force is applied.

  Further, the lock member 20 is provided with an arm 25, and the distal end portion of the arm 25 is provided with a first flat surface 25b constituting the top surface, so that the lock member 20 is surely set in the fully open position. The locking member 30 fixed to the bag or the like can be easily inserted into the engagement hole 14.

  Further, the lock member 20 is formed with a pair of cylindrical shaft portions 22a and 22b serving as a rotation center, and the pair of cylindrical shaft portions 22a and 22b are rotatably fitted into the main body member 10. The pair of bearing portions 12 and the notched portions 12a and 12b having inclined bottom surfaces for pushing the pair of columnar shaft portions 22a and 22b are provided. Therefore, the pair of columnar shaft portions 22a and 22b are connected to each other. It can be easily pushed into the pair of bearing portions 12, and assembly is easy.

  In the strap locking device 100 of the above-described embodiment, the single protrusion 24 having a predetermined length corresponds to the lock portion, but the present invention is not limited to this. For example, a plurality of protrusions may be provided, or one or a plurality of circular convex portions may be provided as the lock portion.

  Moreover, in embodiment mentioned above, although the example of the strap locking tool for bags was demonstrated as the strap locking tool 100, this invention is not limited to this, A strap other than a bag is used. For example, the present invention can be applied to cases, bags, cameras, and the like.

  The present invention is not limited to the above-described embodiment, but includes variously modified forms within the technical scope without departing from the gist of the invention described in the claims.

  INDUSTRIAL APPLICABILITY The present invention can be used for the purpose of improving the operability and design of a detachable strap locking tool used for locked objects such as bags, cases, bags, and cameras.

DESCRIPTION OF SYMBOLS 10 Main body member 11 Accommodating part 11a Edge 11b Step part 11c Curved recessed part 11d Reinforcement part 12 Bearing part 12a, 12b Notch part 13 Strap mounting part 14 Engagement hole 14a Large diameter part 14b Small diameter part 15 Groove 16a, 16b Projection 20 Lock Member 21 Operation portion 22a, 22b Columnar shaft portion 23 Movement restricting portion 24 Projection strip 25 Arm 25a Arc surface 25b First plane 25c Second plane 30 Locking member 31 Head 32 Neck 33 Base 100 Strap locking device B strap belt

Claims (8)

The strap mounting portion has a large-diameter portion and a small-diameter portion communicating with each other, and the engaging member attached to the locked body is inserted and slid by moving from the large-diameter portion to the small-diameter portion. A main body member having an engagement hole to be stopped;
A lock member that is rotatably attached to the main body member and regulates the detachment of the locking member from the engagement hole;
The lock member includes a movement restricting portion that restricts sliding movement of the latched locking member from the small-diameter portion to the large-diameter portion, and restricts the rotation of the lock member to restrict the movement of the movement restricting portion. A locking device for a strap, comprising: a lock portion that maintains a restricted state.   The lock member is pivotally supported by a plate-like operation portion for rotating the lock member and the main body member, and is formed on the operation portion in a plane different from the plane of the operation portion. The strap lock according to claim 1, further comprising a moving fulcrum portion, wherein the lock portion is configured to limit rotation of the operation portion with respect to the rotation fulcrum portion. Ingredients.   The lock part has a protrusion with a convex cross section provided at one edge of the operation part, and the body member has an edge through which the protrusion can pass while abutting and pressing. And a groove for allowing elastic deformation of the edge when the protrusion is passed, provided on the outer side of the edge, and the protrusion of the lock portion is the end of the body member. The strap locking tool according to claim 2, wherein the rotation of the operation portion with respect to the rotation fulcrum portion is restricted by engaging with an edge.   The lock member further includes an arm portion that protrudes from the movement restricting portion toward the main body member, and a distal end portion of the arm portion includes a first plane that can contact the inner wall of the main body member. An arc surface that is continuous with the first plane and is capable of contacting the inner wall, and a second plane that is continuous with the arc surface and is capable of contacting the inner wall are provided. The strap locking tool according to 3.   The first plane of the arm portion is configured to contact and press the inner wall of the main body member to hold the operation portion in a fully open position, and the second plane of the arm portion is The strap locking device according to claim 4, wherein the operation member is held in a fully closed position by contacting and pressing the inner wall of the main body member.   The strap locking tool according to claim 4 or 5, wherein the movement restricting portion, the rotation fulcrum portion, the protrusion, and the arm portion are integrated with the operation portion.   The main body member is a box-shaped body in which the locking member is housed, and the operation unit closes an opening of the box-shaped body, and the movement restriction unit, the rotation fulcrum unit, and the arm unit are The strap locking device according to claim 6, wherein the strap locking device is an inner lid.   The rotation fulcrum portion is a pair of cylindrical shaft portions, and the main body member pushes the pair of cylindrical shaft portions into a pair of bearing portions into which the pair of cylindrical shaft portions are rotatably fitted. The strap locking device according to any one of claims 2 to 7, further comprising a pair of inclined surfaces.

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