JP2010046182A - Buckle having key for belt, and belt equipped with buckle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a belt equipped with a buckle having a locking means which can extremely simply perform the size adjustment after ensuring the safety of the belt, and which is excellent in durability, and to provide the buckle which is the constituent part of the belt. <P>SOLUTION: This buckle includes a fastening pin of which the proximal end is pivotally attached to the shaft body of the buckle body, or includes the fastening pin of which the proximal end is attached to the pivotal shaft of the buckle body, and fastens the belt by passing the distal end of the fastening pin through a fastening hole of the belt. In the buckle, a through hole is provided on the distal end of the fastening pin. The buckle body makes a hook attachable to/detachable from the through hole of the fastening pin. The buckle is equipped with a locking mechanism which switches the attachment/detachment of the hook by moving the hook by a key member. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is a robust buckle used for a belt attached to a travel bag such as a trunk or a tightening belt that is fastened and fastened to the travel bag to prevent inadvertent opening of the travel bag. The present invention relates to a buckle with a belt key that can be locked and released, and a belt provided with the buckle.

  Conventionally, belts used for travel poles are required to have sufficient durability for their use, but not only that, but when traveling abroad, the travel pole must be temporarily released at customs, which is safe. In addition, it is common practice to provide locking means on the belt buckle.

  As a belt provided with a buckle having such a locking means, for example, a male buckle fixed to one end of the belt and a female buckle fixed to the other end of the belt and into which the male buckle can be inserted, A buckle body having a lock portion that locks the engagement between the two when the male buckle is inserted and receives a release operation from the user, and either the male buckle or the female buckle of the buckle body is provided to be openable and closable. A lock cover that exposes the lock portion in the open state and shields the lock portion in the closed state, and the lock cover engages with the main body portion to close the closed state. An engagement member that is switchable between a state in which the lock cover is maintained and a state in which the lock cover is allowed to be changed from the closed state to the open state. Chromatography with a buckle (for example, see Patent Document 1.) It is known.

Japanese Patent No. 3880689

  In the invention according to Patent Document 1, the belt having a function of locking and releasing the engagement / disengagement of the male buckle and the female buckle is effective in preventing accidental detachment of the buckle and ensuring safety. . However, a belt having a male buckle and a female buckle as a connecting means needs to be provided with a belt length adjusting means. That is, the length adjustment buckle separately provided in the middle of the belt must be held with one hand, and the belt must be adjusted to an optimum length while pulling the belt out of the buckle. This configuration has a very troublesome drawback regarding the adjustment of the belt length.

  In addition, such a buckle may have a complicated shape in processing, and is generally made of synthetic resin. However, synthetic resin is weak against long-term use and sunlight, and deteriorated. And has the disadvantage of easily causing damage. If one of the male and female buckles breaks, the failure rate increases because the connection is likely to be impossible.

  The present invention has been made in view of the above circumstances, and can ensure the safety of a belt provided with a buckle having a conventional locking means, and can adjust the size of the belt very easily and has durability. An object of the present invention is to provide a belt having a buckle having a locking means that is superior to the above and a buckle that is a component of the belt.

  A latch pin having a base end pivotally attached to the shaft body of the buckle body, or a latch pin having a base end attached to the pivot shaft of the buckle body, the tip of the latch pin being a belt latch hole The buckle that is inserted into the belt and hooks the belt has a through hole at the tip of the latch pin. The buckle body can be engaged with and disengaged from the through hole of the latch pin, and the hook is moved by the key member. Thus, a buckle characterized by including a lock mechanism for switching engagement / disengagement of the hook is used as a means for solving the problem. In the present invention, “moving the hook by the key member” includes not only directly moving the hook by the key member but also moving the hook by using various known intervening means. .

  According to the first aspect of the present invention, the latching pin having the base end pivotally attached to the shaft body of the buckle body or the latching pin having the base end attached to the pivot shaft of the buckle body is provided, A buckle for inserting the tip of the retaining pin into the retaining hole of the belt and retaining the belt has a through hole at the distal end of the retaining pin, and the buckle body engages a hook with the through hole of the retaining pin. Since it has a lock mechanism that switches the engagement and disengagement of the hook by moving the hook with the key member, the safety of the belt with the buckle having the conventional locking means is secured, and the belt The size can be adjusted very easily by simply passing the retaining pin through the retaining hole.

  Further, since the hook fits into the through hole of the latch pin simply by turning the key member, the latch pin can be reliably prevented from moving in the rotating direction, and an excellent locking function can be exhibited. Furthermore, when releasing the lock, the latch pin can be easily detached from the hook simply by turning the key member in the opposite direction, and the utility can be improved.

  According to the second aspect of the present invention, on the premise of the first aspect of the present invention, the hook is provided on the rotator having a central axis in the buckle body, and the rotator is disposed adjacent to the rotator. Since the stopper is provided and the engaging portion is formed on the contact surface of the rotator corresponding to the lock position of the hook and the contact position with the stopper, the function and effect of the invention according to claim 1 is achieved. In addition, the hook can be smoothly locked and unlocked, and good operability can be obtained.

  According to the invention according to claim 3, on the premise of the invention according to claim 1 or 2, the buckle includes a latch pin rotation restricting portion for restricting a movement range of the latch pin in the rotation direction. The buckle body includes at least a case portion for storing the hook, and the case portion includes a latch pin holding portion for introducing the tip of the latch pin into the case portion. In addition to the effects of the invention according to the present invention, the latch pin that has passed through the belt hole is moved to the latch pin holding portion, brought into contact with the latch pin rotation restricting portion, and the locking operation is performed securely. The hook can be hooked in the through hole at the tip of the latch pin. And in the said latching state, since the front-end | tip of a latching pin is accommodated in a case part and does not protrude to the outer side of a buckle, the front-end | tip of a latching pin does not interfere with another thing, or is caught, and safety And the appearance can be excellent.

  According to the invention which concerns on Claim 4, after ensuring the safety | security of the belt provided with the buckle which has the conventional locking means by providing the belt with the buckle of the said Claim 1, 2 or 3, the belt of It is possible to provide a belt having a buckle having a locking means that can be adjusted in size very easily and has excellent durability.

The present invention includes a latch pin having a base end pivotally attached to the shaft body of the buckle body, or a latch pin having a base end attached to the pivot shaft of the buckle body, and the tip of the latch pin is attached to the belt. In the buckle that is inserted into the retaining hole and hooks the belt,
The buckle includes a latch pin rotation restricting portion that restricts the range of movement of the latch pin in the rotation direction, the buckle body includes at least a case portion that houses the hook, and the case portion includes the tip of the latch pin as a case. A latch pin holding part for introduction into the part, the latch pin is provided with a through hole at the tip, and the hook is provided with a rotator having a central axis in the buckle body, and is adjacent to the rotator. A stopper that presses the rotor, and an engaging portion is formed on the contact surface of the rotor corresponding to the lock position of the hook and the contact position with the stopper. The hook can be engaged and disengaged, and the hook is moved with a key member to provide a buckle with a lock mechanism that switches between engaging and disengaging the hook. Sizing is very easy The tip of the latch pin is introduced into the latch pin holding portion and abuts against the latch pin rotation restricting portion so that it is housed in the case portion and does not protrude outside the buckle. Because the tip does not interfere with or get caught by other objects, it is highly safe and can be excellent in appearance.
Just by turning the key member, the hook fits into the through hole of the latch pin, so that the movement of the latch pin in the rotation direction can be surely prevented. An excellent belt buckle with a key that can be easily detached from the hook by simply turning the hook.

  FIG. 1A is a front view showing a buckle body 1 of a buckle according to an embodiment of the present invention, and FIG. 2B is a rear view thereof. FIG. 2A is a plan view showing the buckle body 1 of the buckle according to the embodiment. (B) AA sectional view of FIG. 1, FIG. 3 is a perspective view showing an assembled state of the buckle according to the embodiment, and FIG. 4 is a state in which the (a) locking pin and hook are detached from the buckle according to the embodiment. FIG. 5B is an explanatory view showing a state where the locking pin and the hook are hooked, FIG. 5A is an enlarged plan view showing a keyhole rotating shaft body in the buckle according to the embodiment, and FIG. 5B is an enlarged left side. (C) enlarged front view, (d) enlarged right side view, (e) enlarged bottom view, (f) enlarged rear view, FIG. 6 shows a stopper in the buckle according to the embodiment (a) enlarged plane (B) Enlarged left side view, (c) Enlarged front view, (d) Enlarged bottom view, and FIG. (A) enlarged plan view, (b) enlarged left side view, (c) enlarged front view, (d) enlarged right side view, (e) enlarged bottom view, FIG. (A) enlarged plan view, (b) enlarged left side view, (c) enlarged front view, (d) enlarged right side view, (e) enlarged bottom view, f) Enlarged BB cross-sectional view of FIG. 8C, FIG. 9A is a plan view showing a key member used for the buckle according to the embodiment, FIG. 8B is a left side view, and FIG. 9C is a front view. (D) Right side view, (e) Bottom view, (f) CC sectional view of FIG. 9 (b), FIG. 10 (a) Plan view showing the buckle lid according to the embodiment, (b) ) Left side view, (c) Front view, (d) Right side view, (e) Rear view, (f) DD sectional view of FIG. 10 (c), (g) E- FIG. 10 (c). E sectional view, FIG. 11 relates to the same embodiment (a A partially omitted front view showing a belt provided with a buckle, (b) a partially omitted front view showing a hooked state of a belt provided with a buckle, and FIG. 12 showing a keyhole rotating shaft body in the buckle according to the same embodiment. (A) Exploded view of keyhole rotary shaft, key member, and rotor showing relationship between keyhole rotary shaft notch and first locking piece of key member, (b) Keyhole rotary shaft and key member FIG. 13 is an explanatory diagram of the assembly state of the rotor, FIG. 13 is a view showing the relationship between the slit of the keyhole rotating shaft body and the second locking piece (keyhole rotating shaft body pressing portion) in the buckle according to the embodiment, (A) Exploded view of keyhole rotating shaft, key member, and rotor showing relationship with second locking piece (rotor pressing portion), (b) Keyhole rotating shaft, key member, and rotation FIG. 14 is an explanatory diagram of the assembly state of the child, and FIG. 14 is a second locking piece (key hole rotation) of the rotor, the keyhole rotating shaft body, and the key member in the buckle according to the same embodiment. An explanatory view showing a state where the locking pin and the hook are detached and a partially enlarged view showing the relationship with the shaft body pressing part and the rotating part pressing part), and FIG. An explanatory view showing the relationship between the keyhole rotary shaft and the second locking piece of the key member (keyhole rotary shaft pressing portion and rotator pressing portion) and a state in which the locking pin and the hook are hooked and a part thereof FIG. 16 is an enlarged view, and FIG. 16 is a perspective view showing an assembled state of a buckle according to another embodiment.

  A buckle with a key for a belt according to an embodiment of the present invention includes a buckle body 1 having a shaft body 12 and a case portion 11, a lid body of the case portion 11, and a latch pin 4 attached to the shaft body 12. Consists of. The outer surface of the case portion 11 has a keyhole. Moreover, the key member 3 for locking and unlocking the buckle with a belt key is attached. In the buckle with a key for the belt, the end on the case portion side is the tip of the entire belt (that is, the tip of the buckle). Hereinafter, each configuration will be described in detail. In this embodiment, the belt band 5 is attached to the shaft body 12 of the buckle without contacting the latch pin (see FIG. 11).

  As shown in FIG. 1A, the buckle body 1 has a configuration in which a case portion 11 is formed on one side of a frame 10 having a front view rectangle. The buckle body 1 has a size of about 50 mm in length, about 73 mm in width, and about 9 mm in thickness when viewed from the front.

  When viewed from the front, the shaft body 12 is integrally provided between the central portions of the upper and lower opposing frame bodies 10 in the buckle body 1. That is, in this embodiment, the shaft body 12 is formed integrally with the frame body 10. The shaft body 12 has a circular cross section in the short direction. A small diameter portion 120 having a width of about 5 mm to 6 mm is formed in the longitudinal center portion of the shaft body 12. A step 121 is formed at the boundary portion of the small diameter portion 120 in the shaft body 12.

  As shown in FIGS. 3, 5, and 8, the latch pin 4 functions as a pivotal support portion 40 at the proximal end and a free end portion 41 at the distal end.

  The pivotal support portion 40 of the latch pin 4 has a configuration in which the inner diameter is larger than the outer diameter of the small-diameter portion 120 and is formed in a bowl shape having a narrower width than the outer diameter of the small-diameter portion 120. The retaining pin 4 is pivotally attached to the small diameter portion 120 of the shaft body 12 by press-fitting the small diameter portion 120 into the opening portion of the pivot support portion 40.

  The free end portion 41 of the latch pin 4 includes a through hole 42 in the vertical direction (that is, a direction parallel to the central axis of the pivotal support portion 40 of the latch pin 4) when the buckle is viewed from the front. In the present embodiment, the shape of the through hole 42 is a rectangle of approximately 3 mm in length and 4 mm in width in plan view.

  The intermediate position from the pivotal support 40 of the latching pin 4 to the free end 41 is made easy to maintain the protruding state of the free end 41 of the latching pin 4 from the belt hole 50 provided in the belt band 5. It is composed of a curved outline.

  The case portion 11 has an engagement hole 117 and a guide groove hole 118 for forming a key hole on the front side as shown in FIG. 1 (a), and opens on the back side as shown in FIG. 1 (b). The lid 2 is closed. The case part 11 includes a case part forming recess 110 and a case part outer peripheral wall 110 a formed around the case part forming recess 110. In the case portion 11, at a position where it interferes with the free end portion 41 of the latch pin 4, a latch pin holding portion 115 is formed by continuously notching a part of the case outer peripheral wall 110 a and the case bottom surface 116. It is.

  Further, as shown in FIGS. 3 and 4, the case portion forming recess 110 is provided with a rotor 13 having a hook 14, a stopper 16 having a coil spring 15 as an urging means, and a keyhole rotating shaft body 17. . As shown in FIG. 1B, at the center in the width direction of the case portion forming recess 110, an engagement hole 117 having a diameter of about 7 mm that penetrates the case bottom surface 116 of the case portion forming recess 110 and a width of about 2.5 mm. A guide slot 118 is formed as a continuous unit.

  On the periphery of the engagement hole 117 and the guide groove hole 118, a seat portion 112 having a thickness smaller than that of the case portion forming recess 110 is formed as the same central axis as the engagement hole 117. That is, the seat portion 112 is formed by further forming a recess from the case portion forming recess 110.

  As shown in FIGS. 1 to 3, a guide wall 114 is formed in the case portion forming recess 110 at a height of about 2 mm from the case bottom surface 116. The guide wall 114 includes rotator guide walls 114 a and 114 b for restricting and guiding the rotator 13, and a stopper guide wall 114 c formed around the position where the stopper 16 is disposed. The stopper guide wall 114c is configured to surround three sides of the stopper 16 having the coil spring 15 as an urging means, and is continuously integrated with a part of the rotor guide wall 114b.

  Further, in the present embodiment, caulking legs 18 a serving as connection means with the lid body 2 are provided at three locations in the case portion 11.

  As shown in FIGS. 3 and 7, the rotor 13 shown in the present embodiment has a rotor center hole 130 having an inner diameter of about 8 mm into which a later-described keyhole rotating shaft body 17 is slidably fitted and has an outer diameter. The inner plate 131 has a circular plate shape with a thickness of about 1.5 mm, which is about 14 mm, and a part of which has a width of about 6 mm and a cutout portion 134 is formed into a substantially C shape. An extending portion 132 that continues outward from a part of the outer periphery and a hook 14 that has the same central axis as the rotor center hole 130 are extended from the distal end side of the extending portion 132 in the circumferential direction. . Here, of the inner plate 131 of the rotator 13, opposing side end portions formed by the C-shaped openings are referred to as side end portions 136 and 137, respectively.

  An inner plate outer peripheral surface 135 of the inner plate 131 serves as an engaging portion with the stopper 16 for positioning the hook 14 in the locked state (locked state) and the unlocked state (unlocked state) of the hook 14. Two engaging recesses 133a and 133b are provided. Here, of the two engaging recesses 133a and 133b, the one that positions the unlocked state is referred to as an engaging recess 133a, and the one that positions the locked state is referred to as the engaging recess 133b.

  These engaging recesses 133a and 133b are continuously formed with gentle curved surfaces from the inner plate outer peripheral surface 135 of the inner plate 131 so that the stopper 16 cannot be detached from the engaging recesses 133a and 133b. Then, the engagement of the engaging recesses 133a and 133b and the stopper 16 can be released by the rotation of the rotator 13 with a predetermined torque or more. Incidentally, the rotational torque exceeding a predetermined value generally means that the user inserts the key member 3 into the key hole against the load and frictional force caused by the pressing by the stopper 16 and operates the key 13 to operate the rotor 13. The purpose is to be able to rotate (can be unlocked).

  As shown in FIG. 5, the keyhole rotating shaft body 17 has a substantially cylindrical shape, and has a slit 171 extending continuously from the central hole 170. The central hole 170 and the slit 171 constitute a substantial key hole. The outer side surface has a configuration in which a front-side shaft body opening 174, a shaft engagement portion 172, and a back-side shaft body opening 173, which have different diameter sizes in the longitudinal direction, are continuous.

  The shaft engaging portion 172 of the keyhole rotating shaft body 17 has a maximum outer diameter of about 8 mm. Further, the front side shaft body opening 174 of the keyhole rotating shaft body 17 has a maximum outer diameter of about 6 mm to 7 mm, which is smaller than the shaft engaging section 172, and the first locking piece described later of the key member 3. It has the shaft body notch part 175 which 320 fits. In the front view, the angle formed by the slit 171 and the notch 175 is approximately 135 ° as shown in FIG. 5A in this embodiment. In addition, the edge part of the front side shaft opening 174 has a rounded shape with rounded corners to improve the appearance and suppress mutual wear due to contact with the key member 3.

  The back side shaft body opening 173 has a minimum outer diameter (about 5 mm outer diameter) in the keyhole rotating shaft body 17.

  As shown in FIG. 6, the stopper 16 is a metal piece having a length of about 7 mm, a maximum width of about 4 mm, and a thickness of about 1.5 mm, and has a roundness corresponding to the shape of the engaging recess 133 of the rotor 13. It has a tinged tip, formed from the central portion 160 of the stopper 16 to the rear end portion 161 of the stopper 16 with a narrow width (about 3 mm) that fits inside the coil spring 15, and from the central portion 160 to the tip portion 162. Is formed wide (about 4 mm).

  The stopper step 163 formed at the boundary between the narrow width portion and the wide width portion prevents the coil spring 15 fitted to the rear end portion 161 from coming off to the front end portion 162 side, and ensures the spring elastic force of the stopper 16. .

  As shown in FIG. 10, the lid 2 has an outer contour corresponding to the case portion forming recess 110. The lid inner surface 21 is formed with a lid-side shaft hole 20 into which the back-side shaft body opening 173 of the keyhole rotary shaft body 17 can be inserted.

  The lid-side inner surface 21 is formed with a spring housing recess 22 for allowing the coil spring 15 to be disposed, and a latch pin abutting portion 23 for regulating the abutment position of the tip of the latch pin 4. It is. Furthermore, in this embodiment, connecting through holes 24 for fixing the lid 2 to the case portion 11 are provided at three locations corresponding to the caulking legs 18 a of the case portion 11.

  As shown in FIG. 9, the key member 3 according to the embodiment of the present invention extends in a columnar key body 30 and one end of the key body 30 on the same axis as the central axis of the key body 30. The key shaft portion 31 includes a key pattern forming portion 32 including a plurality of locking pieces formed on the side peripheral surface of the key shaft portion 31, and a knob portion 33 formed on the other end of the key body 30.

  In the present embodiment, the key pattern forming portion 32 forms a first locking piece 320 and a second locking piece 321 in order from the proximal end side to the distal end side of the key shaft portion 31. Further, in the present embodiment, the first locking piece 320 is positioned relative to the second locking piece 321 at an angle of about 135 ° with the central axis of the key body 30 as a reference. This angle is to match the angle formed by the slit 171 and the notch 175 of the keyhole rotating shaft 17 described above.

  The second locking piece 321 has a keyhole rotation shaft body pressing portion 321a on the coupling portion side with the key shaft portion 31, and a rotator pressing portion 321b on the outer side in the axial radial direction continuous to the keyhole rotation shaft body pressing portion 321a. It is the structure formed integrally.

  A gap 322 is formed between the first locking piece 320 and the second locking piece 321 in the key shaft portion 31. When the key member 3 is inserted into the key hole, the gap 322 is formed so that the key pattern forming portion 32 of the key member 3 is located at the edge of the engagement hole 117 formed in the case bottom surface 116 of the case portion forming recess 110 of the buckle body 1. Since the key member 3 cannot be rotated when it abuts, it is provided to avoid this.

  One end of the keyhole rotation shaft body 17 is inserted into the engagement hole 117 formed in the case portion formation recess 110 of the case portion 11, and the shaft engagement portion 172 in the seat portion 112 around the engagement hole and the keyhole rotation shaft body 17. Is brought into contact with the end surface 172a (see FIG. 3). At this time, by aligning the guide slot 118 of the case 11 and the position of the slit 171 of the keyhole rotating shaft 17, the center hole 170 and the slit 171 of the keyhole rotating shaft 17 and the case are shown in FIG. 11 guide groove holes 118 are connected to form a key hole (see FIG. 11A) into which the key member 3 can be inserted from the front side.

  When the key member 3 is inserted into the key hole, the center hole 170 of the key hole rotating shaft body 17 is aligned with the key shaft portion 31 of the key member 3, and the slit 171 and the guide groove hole 118 of the key hole rotating shaft body 17 are the second locking pieces. It can be inserted by adjusting to 321.

  When the key member 3 is rotated with respect to the keyhole, the first locking piece 320 of the key member 3 is fitted to the shaft body notch 175 of the keyhole rotation shaft body 17 as shown in FIG. As shown in FIG. 13, the keyhole rotary shaft pressing portion 321 a of the second locking piece 321 of the key member 3 corresponds to the keyhole rotary shaft 17. The rotator pressing portion 321 b corresponds to the rotator 13.

  The rotator 13 is arranged in accordance with the outer periphery of the shaft engaging portion 172 having the maximum diameter of the keyhole rotating shaft body 17. The rotator 13 and the outer periphery of the keyhole rotating shaft body 17 are slidable, and each can independently rotate. The inner plate outer peripheral surface 135 of the rotor 13 is guided by the rotor guide wall 114a, and the hook outer peripheral surface 140 of the hook 14 formed integrally with the rotor 13 is connected to the rotor guide wall 114b. You will be guided.

  A coil spring restricting recess 111 for restricting the coil spring 15 is further formed in the case bottom 116 at the position where the stopper 16 is disposed. The rear end of the coil spring 15 fitted to the stopper 16 is in contact with the stopper guide wall 114c, and the tip of the coil spring 15 is in contact with the wall portion of the coil spring restricting recess 111. Even in this state, the coil spring 15 maintains the state in which the stopper 16 is pressed against the rotor 13 by the spring elastic force.

Next, the movement of the buckle locking mechanism accompanying the operation of the key member 3 will be described.
First, in a state where the latch pin 4 and the hook 14 are released, as shown in FIG. 4A, the slit 171 of the keyhole rotating shaft body 17, the guide groove hole 118 of the case portion 11, and the rotor The notch portion 134 is coincident. For this reason, the key member 3 can be inserted into the keyhole from the outside.

  The stopper 16 urged by the coil spring 15 is engaged with the engagement recess 133 a of the rotator 13. The hook 14 is in a state of being housed in the case portion 11 without being applied to the latch pin holding portion 115. The latch pin 4 is in a state of being rotatable with respect to the shaft body 12.

  When attaching the belt, in this state, the travel belt or the like is fastened with the belt belt 5 and the operation of inserting the latch pin 4 into the belt hole 50 arranged in the belt belt 5 is performed. . As described above, the intermediate position from the pivotal support portion 40 to the free end portion 41 of the latch pin 4 is configured by a curved outline, so that the belt band 5 is provided with the latch pin 4. The frame body 10 is well maintained.

  The free end portion 41 of the latch pin 4 is introduced into the latch pin holding portion 115 and comes into contact with the lid body inner surface 21 of the lid body 2 (see FIG. 4A). Here, the lid inner surface 21 is provided with a latch pin rotation restricting portion 23 as shown in FIG. 10, and restricts the rotation of the latch pin 4, and as shown in FIG. The hook 14 is positioned so as to be inserted into the through hole 42 formed in the free end 41.

  When the key member 3 is inserted into the keyhole, the first locking piece 320 of the key member 3 is fitted to the shaft body notch 175 of the keyhole rotating shaft body 17. As shown in FIG. 14A, the keyhole rotary shaft pressing portion 321 a in the second locking piece 321 of the key member 3 is at a position corresponding to the keyhole rotary shaft 17. Further, the rotator pressing portion 321 b is at a position corresponding to the rotator 13.

  In this state, when the key member 3 is rotated clockwise, the keyhole rotary shaft pressing portion 321a of the second locking piece 321 of the key member 3 is brought into contact with the keyhole rotary shaft 17 so that the first engagement is achieved. Together with the stop piece 320, the keyhole rotary shaft 17 is rotated about the axis. Further, the rotator pressing portion 321b abuts on the side end portion 136 of the rotator 13 and rotates the rotator 13 about the axis.

  The hook 14 provided integrally with the rotator 13 rotates along the rotator guide wall 114 a and moves toward the through hole 42 of the latch pin 4 guided in the latch pin holding portion 115. Moving. Further, the inner plate outer peripheral surface 135 of the inner plate 131 of the rotor 13 rotates while being along the guide wall 114b for the rotor. As the rotator 13 is rotated, the stopper 16 is detached from the engaging recess 133 a of the rotator 13.

  The hook 14 is fitted into the through hole 42 of the latch pin 4 in the latch pin holding portion 115, and the stopper 16 is engaged with the engagement recess 133 b for positioning the locked state of the rotator 13. As a result, the hook 14 and the latch pin 4 are locked as shown in FIG.

  By rotating the key member 3 counterclockwise by 45 °, the keyhole rotating shaft body 17 is moved together, and the central hole 170 and the slit 171 of the keyhole rotating shaft body 17 are aligned with the guide groove hole 118 of the case portion 11. By doing so, the key member 3 can be removed from the keyhole.

  When the key member 3 is rotated counterclockwise from the state in which the key member 3 is inserted into the key hole, the key hole rotation shaft body pressing portion 321a of the second locking piece 321 of the key member 3 comes into contact with the key hole rotation shaft body 17, Together with the first locking piece 320, the keyhole rotating shaft 17 is rotated about the axis. Further, the rotator pressing portion 321b abuts on the side end portion 137 of the rotator 13 (the side end portion 137 facing the side end portion 136), and rotates the rotator 13 about the axis.

  Along with the rotation, the hook 14 provided integrally with the rotator 13 is detached from the latch pin holding portion 115 along the rotator guide wall 114a. Further, the inner plate outer peripheral surface 135 of the inner plate 131 of the rotor 13 rotates while being along the guide wall 114b for the rotor. As the rotator 13 is rotated, the stopper 16 is detached from the engaging recess 133 b of the rotator 13.

  The stopper 16 engages with an engaging recess 133a for locking state positioning of the rotor 13. As described above, the hook 14 and the latch pin 4 are locked.

  By rotating the key member 3 clockwise by 45 °, the keyhole rotating shaft body 17 is moved together, and the center hole 170 and the slit 171 of the keyhole rotating shaft body 17 are aligned with the guide groove hole 118 of the case portion 11. By doing so, the key member 3 can be removed from the keyhole.

  Note that the size and shape of the through hole of the latch pin 4 can be freely set within a range in which engagement / disengagement of the hook 14 is ensured and the strength of the latch pin 4 is not impaired, regardless of the embodiment.

  Moreover, in the said Example, in the front view, the angle | corner which the slit 171 and the keyhole rotating shaft body notch part 175 make, and the 1st locking piece 320 of the key member 3 corresponding to this, and the 2nd locking piece 321 In the present embodiment, the formed angles are about 135 °, but these angles can be changed as appropriate according to the shape and pattern of the key pattern forming portion 32.

  Furthermore, in the said Example, although the shaft body 12 in the buckle main body 1 is integrally formed with the frame body 10, as another Example, a shaft hole ( A shaft body that passes through the space between the shaft holes can be provided as a pivot. By setting it as the said structure, a shaft and a latch pin can also be provided integrally. Moreover, in the said Example, although the hook 14 was integrally formed with respect to the rotor 13, a separate thing can also be connected.

  Moreover, in the said Example, although the attachment of the buckle main body 1 and the cover body 2 shall pass the caulking leg 18a through the connecting through-hole 24, and the caulking leg 18a was crushed and connected, this invention is the said structure. For example, as shown in FIG. 16, various known connecting means such as using a male screw 6 and a female screw 18b can be used.

  Furthermore, the present invention is not limited to the above-described embodiments with respect to the locking and unlocking mechanisms. That is, the present invention includes a latch pin 4 having a base end pivotally attached to the shaft body 12 of the buckle body 1, or a latch pin 4 having a base end attached to the pivot axis of the buckle body 1. In the buckle that inserts the tip of the latch pin 4 into the latch hole 50 of the belt band 5 and latches the belt band 5, the tip of the latch pin 4 is provided with a through hole. The hook 14 can be engaged / disengaged with respect to the through-hole of the hook, and the hook 14 may be provided with a lock mechanism for switching engagement / disengagement of the hook 14 by moving the hook with a key member. It is the meaning which should just be locked by providing this through-hole. Although the shape of the through hole is not particularly limited, it is sufficient that the hook 14 can be engaged and disengaged and the strength that prevents the latch pin 4 from being damaged is maintained.

  Accordingly, in the present invention, if the hook 14 and the through hole 41 at the tip of the locking pin 4 are locked as locking means, various known structures are added in addition to those disclosed in the above embodiment. be able to. For example, not only the cylinder lock as in the present embodiment, but also a dial lock, an electronic lock using magnetic force, or the like can be used. In the present invention, for example, the keyhole is a keyhole having a shape approved by the TSA (United States Federal Aviation Ministry of Transport and Security Administration), and the corresponding key member 3 is used. Including those that are free from destruction of the locking means.

The (a) front view and (b) back view which show the buckle main body of the buckle which concerns on the Example of this invention. BRIEF DESCRIPTION OF THE DRAWINGS (a) Top view and (b) AA sectional drawing which show the buckle main body of the buckle which concerns on the Example of this invention. The perspective view which shows the assembly state of the buckle which concerns on the Example of this invention. (A) In the buckle which concerns on the Example of this invention, (a) Descriptive figure which shows the state which the latching pin and the hook detach | leave, (b) Explanatory drawing which shows the state which the latching pin and the hook latched. (A) An enlarged plan view, (b) An enlarged left side view, (c) An enlarged front view, (d) An enlarged right side view, (e) An enlarged bottom view showing a keyhole rotating shaft body in a buckle according to an embodiment of the present invention. (F) Enlarged rear view. The (a) enlarged plan view which shows the stopper in the buckle which concerns on the Example of this invention, (b) An enlarged left view, (c) An enlarged front view, (d) An enlarged bottom view. (A) Enlarged plan view, (b) Enlarged left side view, (c) Enlarged front view, (d) Enlarged right side view, (e) Enlarged bottom view showing a buckle rotator according to an embodiment of the present invention . (A) Enlarged plan view, (b) Enlarged left side view, (c) Enlarged front view, (d) Enlarged right side view, (e) Enlarged bottom view showing a buckle latch pin according to an embodiment of the present invention (F) Enlarged BB sectional view. The key member used for the buckle which concerns on the Example of this invention (a) Top view, (b) Left side view, (c) Front view, (d) Right side view, (e) Bottom view, (f) CC sectional drawing. (A) Top view, (b) Left side view, (c) Front view, (d) Right side view, (e) Rear view, (f) D- D sectional drawing, (g) EE sectional drawing. BRIEF DESCRIPTION OF THE DRAWINGS (a) The front view which abbreviate | omitted the part provided with the buckle which concerns on the Example of this invention, The partially omitted front view which shows the latching state of the belt provided with the buckle. The relationship between the keyhole rotation shaft body notch part of the keyhole rotation shaft body in the buckle which concerns on the Example of this invention, and the 1st locking piece of a key member is shown, (a) Keyhole rotation shaft body, a key member, and a rotator Exploded view (b) Assembly state explanatory view of the keyhole rotating shaft, the key member and the rotor. The relationship between the slit of the keyhole rotating shaft body and the second locking piece (keyhole rotating shaft body pressing portion) in the buckle according to the embodiment of the present invention, and the rotor and the second locking piece (rotator pressing portion) (A) An exploded explanatory view of the keyhole rotating shaft, the key member, and the rotor, and (b) An assembled state explanatory view of the keyhole rotating shaft, the key member, and the rotor. The locking pin and hook which show the relationship between the rotary element in the buckle which concerns on the Example of this invention, a keyhole rotary shaft body, and the 2nd locking piece (keyhole rotary shaft body press part and rotary element press part) of a key member. Explanatory drawing which shows the state which left | separated. The locking pin and hook which show the relationship between the rotary element in the buckle which concerns on the Example of this invention, a keyhole rotary shaft body, and the 2nd locking piece (keyhole rotary shaft body press part and rotary element press part) of a key member. Explanatory drawing which shows the state which latched. The perspective view which shows the assembly state of the buckle which concerns on the other Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Buckle main body 10 Frame 11 Case part 110 Case part formation recessed part 110a Case part outer peripheral wall 111 Coil spring control recessed part 112 Seat part 114 Guide wall 114a Rotator guide wall 114b Rotator guide wall 114c Stopper guide wall 115 Hanging Stop pin holding portion 116 Case bottom surface 117 Engagement hole 118 Guide groove hole 12 Shaft body 120 Small diameter portion 121 Step 13 Rotor 130 Rotor center hole 131 Inner plate 132 Extension portion 133a Engagement recess (for unlocking state positioning) )
133b Engaging recess (for locking state positioning)
134 Notch portion 135 Inner plate outer peripheral surface 14 Hook 140 Hook outer peripheral surface 15 Coil spring 16 Stopper 160 Central portion 161 Rear end portion 162 Front end portion 163 Stopper step 17 Keyhole rotating shaft body 170 Central hole 171 Slit 172 Shaft engaging portion 172a End surface 173 Rear side shaft body opening 174 Front side shaft body opening 175 Keyhole rotating shaft body notch 18a Caulking leg 18b Female screw 2 Lid 20 Lid side shaft hole 21 Lid inner surface 22 Spring accommodating recess 23 Latch pin contact part 24 connecting through hole 3 key member 30 key body 31 key shaft portion 32 key pattern forming portion 320 first locking piece 321 second locking piece 321a keyhole rotating shaft body pressing portion 321b rotator pressing portion 322 gap 33 knob portion 4 Latching Pin 40 Pivot Portion 41 Free End 42 Through Hole 5 Belt Belt 50 Belt Hole 6 Male Screw

Claims (4)

A latch pin having a base end pivotally attached to the shaft body of the buckle body, or a latch pin having a base end attached to the pivot shaft of the buckle body, the tip of the latch pin being a belt latch hole In the buckle that hooks the belt through
A lock mechanism having a through hole at the tip of the latch pin, the buckle body being capable of engaging and disengaging the hook with respect to the through hole of the latch pin, and moving the hook with a key member, thereby switching the hook. A buckle with a key for a belt characterized by comprising. The hook is provided on a rotor having a central axis in the buckle body,
A stopper that presses the rotor adjacent to the rotor;
2. The buckle with a belt key according to claim 1, wherein an engaging portion is formed on a contact surface of the rotor corresponding to a lock position of the hook and a contact position with the stopper.   The buckle includes a latch pin rotation restricting portion that restricts the range of movement of the latch pin in the rotation direction, the buckle body includes at least a case portion that houses the hook, and the case portion includes the tip of the latch pin as a case. The buckle with a key for a belt according to claim 1 or 2, further comprising a retaining pin holding part for introduction into the part.   A belt comprising the buckle with a belt key according to claim 1, 2 or 3.

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