JP2016056880A - Band body fastening tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a band body fastening tool in which a turning operation of a lever body is easily carried out when an item to be fastened is fastened by a band body.SOLUTION: A lever body L forming a band body fastening tool and a fastening tool main body E are constituted in such a way that the first supporting plate part 6 arranged at the fastening tool main body E is fitted into a slidable groove 36 formed at an outer peripheral surface of a disc-like slide preventing part 34 of the lever body L by a tension force T of a band body B under a state in which the lever body L is closed in respect to the fastening tool main body E to cause the fastening tool main body E and the lever body L to be slid relatively, they are engaged to each other along an acting direction of the tension force T of the band body B, and each of an engaging protrusion 39 to disable the turning of the lever body L in its opening direction and an engaged groove 18 is formed, respectively.SELECTED DRAWING: Figure 8-B

Description

  The present invention relates to a band body fastener comprising a fastener body to which one end side of a belt-like band body is fixed, and a lever body pivotally supported on the fastener body via a rotating shaft portion. is there.

  The band body fastening tool having the above-described configuration is configured to close the lever body to the side of the fastening tool main body to draw the other end side of the band body and tighten the band body against the object to be fastened. One of conventional band body fasteners is described in Patent Document 1.

  In the band fastener described in FIGS. 1 to 20 of Patent Document 1, side plates 5 are formed at both ends in the width direction at one end in the longitudinal direction of the main body 2, and each side plate 5 has a concave shape opened to the inside. A bearing 12 is formed, and a projection 17 is provided on the inner peripheral surface of each concave bearing 12 so as to engage with each rotation shaft 25 of the rotation lever 3 described later. A winding shaft 28 for winding the band B is provided at one end portion in the longitudinal direction of the rotating lever 3, and a rotating shaft 25 is provided on each rear plate 24 provided at both end surfaces of the winding shaft 28. Each is provided.

  The rotary shafts 25 of the rotary lever 3 are fitted into the concave bearings 12 formed on the side plate 5 of the main body 2, so that the rotary lever 3 is rotatably supported with respect to the main body 2. By closing the rotating lever 3 with respect to the main body 2, an engaging claw 20 formed at the other end portion in the longitudinal direction of the main body 2 and a claw receiver formed on the back surface side of the upper plate 22 of the rotating lever 3. Due to the engagement with 42, the rotation lever 3 does not rotate in the opening direction with respect to the main body 2.

  Both ends of the band B are respectively wound around the winding shafts 28 of the main body 2 and the rotating lever 3, and the rotating lever 3 slides little by little with respect to the main body 2 by tilting the rotating lever 3 with respect to the main body 2. As a result, each rotary shaft 25 of the rotary lever 3 is engaged with the protrusion 17 in each concave bearing 12, and the engaging claw 20 and the rotary lever 3 at the other end in the longitudinal direction of the main body 2. And the engagement state of the rotary shaft 25 and the engagement claw 20 is maintained by the tension acting on the band B.

  Thus, the band fastener disclosed in Patent Document 1 gradually slides with respect to the main body 2 when the rotary lever 3 is rotated, and the rotary lever 3 is completely closed with respect to the main body 2. In this state, the sliding of the rotating lever 3 with respect to the main body 2 is stopped, and the rotating operation of the rotating lever 3 cannot be stably performed.

  In any of the embodiments disclosed in Patent Document 1, the rotation lever 3 rotates relative to the main body 2 while the main body 2 and the rotation lever 3 slide relative to each other due to the large tension acting on the band B. It is the structure to do. Therefore, in a state where the rotation lever 3 is closed with respect to the main body 2 and the relative slide between the main body 2 and the rotation lever 3 is stopped, the engagement portion (the protrusion 17 or the uneven stripe 44) and the rotation of the main body 2 are stopped. The rotating lever 3 is not engaged with the engaged portion of the moving lever 3 (the notch 26 or the ridges 47 of the rotating shaft 25) completely, that is, in an incompletely engaged state. There is also a problem that the stability of the tightened state of the band B as the band tightening tool is lacking because there is a risk of being closed.

  Further, in a state where the rotation lever 3 is closed with respect to the main body 2 and the object to be fastened is tightened by the tension acting on the band B, the support of the rotation lever 3 with respect to the main body 2 is supported by the pair of rotary shafts 25. Since it is a structure performed only by a part, there also exists a problem that the support force of the rotation lever 3 in a clamping | tightening state is small.

International Publication No. 2013/145118

  An object of the present invention is to provide a band body fastener that can be easily rotated by a lever body when the object to be tightened is tightened by the band body.

  The invention of claim 1 for solving the above-described problems includes a fastening tool main body to which one end side of a belt-like band body is fixed, a lever body pivotally supported by the fastening tool main body via a rotating shaft portion, and The band body fastener is configured to close the lever body to the side of the fastener body and draw the other end side of the band body and tighten the band body against the object to be tightened. The pivot shaft portion is provided on one of the lever body and the fastening tool main body, and on the other side, a bearing portion that pivotally supports the pivot shaft portion and the pivot shaft portion are provided. A support portion for supporting the band body along the tension direction is provided, and the pivot shaft portion is provided with the clamp body and the lever body until immediately before the lever body is closed with respect to the clamp body. In order to prevent relative sliding of the disc, the disc-shaped slide that comes into sliding contact with the support portion is prevented. Is provided on the outer peripheral surface of the anti-sliding portion, and a slidable groove having an arcuate groove shape is formed. The attachment main body and the lever body slide relative to each other, and the support portion is fitted into the slidable groove.

  According to invention of Claim 1, when rotating a lever body with respect to a fastener main body, the slide prevention part which comprises the rotating shaft part provided in either one of a lever body or a fastener main body. However, the tension acting on the band body by slidingly contacting the support portion provided on the other side is supported by the support portion and does not act at all on the support shaft portion constituting the rotating shaft portion, Moreover, since the fastener body and the lever body do not slide relative to each other, the lever body can be easily rotated with respect to the fastener body.

  Further, immediately before the rotation of the lever body with respect to the fastener body is completed, the support portion that has been in sliding contact with the disc-shaped slide prevention portion is an arc groove-like slide provided on the outer peripheral surface of the slide prevention portion. By fitting in the possible groove, the lever body and the fastener body slide relative to the fastener body by relatively sliding along the acting direction of the tension by the tension acting on the band body. The lever body is completely closed, and the lever body cannot be rotated in the opening direction.

  According to a second aspect of the present invention, in the first aspect of the present invention, the lever body and the fastener body are engaged with each other along the direction of the tension of the band body so that the lever body opens in the opening direction. An engaging portion that disables rotation and an engaged portion are formed, respectively.

  According to the invention of claim 2, when the lever body is closed with respect to the fastener body, the engaging portion and the engaged portion provided in the lever body and the fastener body are the band body. Since they are engaged with each other along the direction of the tension, the lever body can be more reliably prevented from being raised when the lever body is closed with respect to the fastener body.

  According to a third aspect of the present invention, in the first or second aspect of the invention, the slide prevention portion constituting the rotating shaft portion and the pair of support shaft portions provided at both ends in the width direction are individually provided. It is characterized by being provided.

  According to the invention of claim 3, in the state where the lever body is closed with respect to the fastener body, the tension acting on the band body is the rotation shaft portion provided on one of the lever body or the fastener body. The disc-shaped slide prevention part that constitutes is supported only by contacting the support part provided on the other side, and does not act at all on the pair of rotation shaft parts. It becomes easy and it is not necessary to increase the rigidity of the pair of rotating shaft portions.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the rotating shaft portion is provided on the lever body, and the other end portion of the band body is partially provided on the rotating shaft portion. A band body hooking portion for winding and hooking is formed, and the band body hooking portion is attached to the support portion by the tension acting on the band body by closing the lever body with respect to the fastener body. It is the structure supported.

  According to the invention of claim 4, in the state where the lever body is closed with respect to the fastener body and the object to be fastened is tightened by the band body, the slide preventing portion is supported by the support portion, and the band body The band body hooking part for partially wrapping and hooking the other end of the band body is also supported by the support part, so that the tension acting on the band body is supported over almost the entire width of the fastener body. Since it is a structure, the supporting force of the tension | tensile_strength which acts on a band body becomes still larger.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the lever body and the fastener main body each have a disengagement groove partially overlapped with each other. It is characterized by being shifted along the acting direction of tension.

  According to the fifth aspect of the present invention, when it is necessary to loosen the band body, the tip of a tool such as a flat-blade screwdriver is inserted into each engagement release groove provided in the lever body and the fastener body. When the lever body is rotated, the lever body and the fastener body slide relative to each other against the tension of the band body, and the engaging portion and the engaged portion provided on the lever body and the fastener body. And the lever body can be raised with respect to the fastener body.

  According to the present invention, when the lever body is rotated with respect to the fastener main body, the slide preventing portion constituting the rotation shaft portion provided on either the lever body or the fastener main body is the other The tension acting on the band body by sliding contact with the support portion provided on the side is supported by the support portion, and does not act on the support shaft portion constituting the rotating shaft portion at all and is tightened. Since the tool body and the lever body do not slide relative to each other, the lever body can be easily rotated with respect to the fastening tool body.

It is the perspective view of the separation state which looked at fastener body E and lever body L from diagonally upward. It is the perspective view of the separation state which looked at the fastener main body E and the lever body L from diagonally downward. (A) is a plan view of the fastener body E, (b) is a X ₁ -X ₁ line cross-sectional view of (a). (A), (b) is a sectional view of the X ₂ -X _2-wire and X ₃ -X _3-wire, respectively, of FIG 3 (a). (A), (b) is the top view and side view of the lever body L, respectively. (A) is the YY sectional view taken on the line of Fig.5 (a), (b) is the ZZ sectional view taken on the line (a). (A), (b) is a state where the lever body L with respect to the fastener body E is in an open state and the lever body L is closed, and the engaged groove 18 of the fastener body E and the engagement protrusion of the lever body L It is a perspective view of the state which 39 engaged. (A), (b) is a longitudinal cross-sectional view which shows the state in which the lever body L is open with respect to the fastener main body E, and the state just before closing. (C) and (d) show that the lever body L is completely closed with respect to the fastener body E, and the engaged groove 18 of the fastener body E and the engagement protrusion 39 of the lever body L are engaged. It is a longitudinal cross-sectional view which shows the state before and after joining sequentially. 7 is a perspective view showing a state in which the engagement between the engaged groove 18 of the fastener main body E and the engagement protrusion 39 of the lever body L is released. FIG. It is a perspective view of the state where equipment storage box 72 was attached to construction pole 71 using band body fastener F concerning the present invention.

Hereinafter, the present invention will be described in more detail with reference to examples. As shown in FIGS. 1 and 2, the band body fastener F according to the present invention is capable of rotating to a fastener body E fixed to one end side of the band body B and the fastener body E. And is a resin injection molded product. Since the fastener body E has a structure that can pivotally support the rotation shaft portion R of the lever body L, the description of the fastener body E will be made in conjunction with the description of the lever body L. As shown in FIGS. 1 to 4, the fastener body E is integrally formed with a pair of side wall portions 2 facing each other on both sides of the bottom wall portion 1, and the bottom wall portion 1 is formed of the band body B. Thick band body insertion / fixing portion 3 into which one end side B ₁ of the band body B is inserted / fixed and the other end side B ₂ is inserted, and the lever body when approximately divided into two along the arrangement direction It is composed of a shaft support portion 4 that is much thinner than the band body insertion / fixation portion 3 for accommodating the rotation shaft portion R of L and pivotally supporting it.

As shown in FIGS. 1, 2, 5, and 6, the lever body L has a structure in which a rotation shaft portion R is integrally provided at the base end portion of the lever portion 31, and the rotation shaft portion. R is a band in which the band body B is hooked and fixed by the tension T acting on the band body B when the other end side B ₂ of the band body B is inserted into the band body insertion hole 32 provided substantially in the diameter direction. When the lever body L is in the open state with respect to the body hook fixing portion 33 and the fastener body E, the lever body L is slid in the acting direction of the tension T on the other end side B ₂ of the band body B. In order to prevent this, the lever body L is attached to the fastener body E with a pair of substantially disc-shaped slide prevention portions 34 integrally provided at both end portions in the axial direction of the band body hook fixing portion 33. In order to pivotally support the pair of slide prevention portions 34, a pair provided integrally with the outer surface of the pair of slide prevention portions 34. And a support shaft portion 35. In the side view, the support shaft portion 35 is completely circular, but the band body hook fixing portion 33 and the slide prevention portion 34 are non-perfectly circular, and the outer diameter thereof is the support shaft portion 35 and band body hook fixing. It becomes large in order of the part 33 and the slide prevention part 34. FIG. As shown in FIG. 6, the band body insertion hole 32 is at a position shifted from the entire rotation axis C ₀ of the rotation shaft portion R and hooks the band body B with an acute angle. For this reason, it is formed non-perpendicular to the longitudinal direction of the lever portion 31. In addition, in order to enable the assembly of the lever body L to the fastener main body E, a portion of the support shaft portion 35 opposite to the tip of the lever portion 31 is formed with a tapered surface portion 35a.

As shown in FIGS. 1, 2, and 5 (b), the outer peripheral surface of the pair of slide preventing portions 34 is substantially opposite to the lever portion 31, and on the outer portion along the thickness direction, in a state where the lever L with respect to the fastener body E is closed, the tension T of the other end B ₂ band body B, a circle to enable sliding of the lever L for fastening tool body E An arcuate slidable groove 36 is formed. As shown in FIG. 5B, the slidable groove 36 has an arc shape, and the center C _{3 of} this arc is on the side of the lever portion 31 with respect to the rotation axis C ₀ of the rotation shaft portion R. Further, the lever body L is disposed at a position shifted by the slide amount S. When the outer diameter of the circular portion of the slide preventing portion 34 is (D), the circular arc surface that is the bottom surface of the slidable groove 36 is an arc having a radius (D / 2) centered on the center C _3. is there.

The lever portion 31 is formed by integrally forming side plate portions 38 at both ends in the width direction of the top plate portion 37 toward the fastening tool main body E in the assembled state. A pair of engaging protrusions 39 project in the width direction on both side plate portions 38 of the portion, and the rotation shaft portion is more than the engaging protrusion 39 at each intersection of the top plate portion 37 and the pair of side plate portions 38. Engagement release grooves 41 are formed in portions close to the R side. Here, in FIG. 5B, the distance between the rotation axis C ₀ of the rotation shaft portion R and the edge of the engagement protrusion 39 on the rotation axis C ₀ side is defined as (M). . 1, 2, and 6, reference numeral 42 denotes a portion facing the band body insertion hole 32 in order to bite the portion of the other end side B ₂ of the band body B on the back surface side of the lever body L. Reference numeral 43 denotes a formed biting protrusion. Reference numeral 43 denotes a fingertip hook portion provided on the upper surface of the tip of the lever portion 31 for hooking a human fingertip when the lever body L is closed. 44 These show the meat stealing part provided in the band body hook fixing | fixed part 33 in parallel with the band body insertion hole 32. FIG.

Next, the fastener body E will be described in more detail with respect to the lever body L with reference to FIGS. The shaft support portion 4 of the fastener body E is a portion that accommodates the rotation shaft portion R of the lever body L and pivotally supports the lever body L. The lever body L is disposed on the inner side surfaces of the pair of side wall portions 2. A concave groove-like bearing recess 5 that supports the support shaft portion 35 of the rotation shaft portion R is formed oppositely, and the portion of the bottom wall portion 1 in which the rotation shaft portion R of the lever body L is accommodated. Is formed in a circular arc shape corresponding to the outer diameter of the support shaft portion 35 of the rotation shaft portion R. The bearing recess 5 has a shape in which a substantially semicircular groove having a substantially semicircular shape is connected to an upper end of a rectangular groove that penetrates the bottom wall portion 1, and a lever is formed at a substantially semicircular portion of the bearing recess 5. The support shaft portion 35 of the body L is supported. The shape of the substantially semicircular portion of the bearing recess 5 will be described in detail. Two quadrant arcs (arcs having a central angle of 90 °) corresponding to the outer diameter of the support shaft portion 35 are the slides of the lever body L. An amount S is arranged along the relative sliding direction P of the fastener body E and the lever body L (see FIG. 8B (c)), and two quadrant arcs are the amount of the sliding amount S. It is the shape connected with the line segment of length. The center of the quadrant on the side close to the band body insertion / fixing portion 3 rotates the lever body L in a state where the lever body L is pivotally connected to (attached to) the fastener body E. as well as a position C ₁ to the axis C ₀ is arranged, quadrant of center away from the band member insertion-fixed portion 3 side, the lever member L with respect to the fastener body E is the band body B This is a position C ₂ where the rotation axis C ₀ of the rotation shaft portion R of the lever body L in the “engaged state” described later after being slid by the tension T of the lever body L. The bearing recess 5 is formed through the bottom wall portion 1 because of the slide mold used at the time of injection molding, and has a function of supporting the rotating shaft portion R of the lever body L. There is no meaning.

1 to 4, a pair of first support plates is provided on the bottom wall portion 1 at a position farther from the band body insertion / fixation portion 3 than the bearing recess 5 in the shaft support portion 4 of the fastener body E. A total of four support plate portions 6 and 7, that is, a portion 6 and a pair of second support plate portions 7 arranged between the pair of first support plate portions 6, along the width direction of the bottom wall portion 1. They are integrally provided at a predetermined interval. The pair of first support plate portions 6 are disposed on the inner side of each side wall portion 2, which is a position corresponding to the arrangement position along the axial direction of the pair of slide prevention portions 34 constituting the rotation shaft portion R of the lever body L. In the state where the lever body L is connected (assembled) to the fastener main body E, a part of the pair of slide preventing portions 34 is in sliding contact with the lever body L in the opened state. Has a basic function of preventing the sliding of the first and second sliding grooves 36 provided on the outer peripheral surface of each of the sliding prevention portions 34 of the rotation shaft portion R of the lever body L when the lever body L is closed. The support plate portion 6 is fitted into the lever body L so that the lever body L can be slid, whereby engagement of a later-described engaged groove 18 of the fastener body E with the engagement protrusion 39 of the lever body L is achieved. It is impossible to be released. Accordingly, the support surface 6a of the first support part 6 is formed by an arc surface of a radius (D / 2) around the position C _1. 4A, K ₁ and K ₂ indicated by two-dot chain circles indicate the opened state of the lever body L and the engagement of the engagement protrusion 39 of the lever body L and the fastener body E, respectively. The arrangement position of the slide prevention part 34 in the engagement state with the joint groove 18 is shown.

Further, the pair of second support plate portions 7 disposed between the pair of first support plate portions 6 is configured such that the lever body L is slid by the slide amount (S) with respect to the fastener body E, and the lever body In a state where the engagement protrusion 39 of L and the engaged groove 18 of the fastener body E are engaged, the band body hook fixing portion 33 of the lever body L abuts, whereby the tension T of the band body B Thus, the lever body L as a whole receives a force pulled by the tension T. In FIG. 4B, K ₃ indicated by a two-dot chain line circle represents the band body hooking fixing portion 33 in this state. The arrangement position of is shown. Accordingly, the support surface 7a of the second support plate portion 7 is identical in arc surface and the outer diameter of the band body hooking fixing portion 33 around the position C _2.

  A band body insertion hole 11 that is inserted through the base end side of the band body B and protrudes from the bottom surface of the bottom wall 1 penetrates the thick band body insertion / fixing section 3 in the arrangement direction of the band body B. The band body insertion hole 11 communicates with a band body extraction hole 12 provided in the bottom wall portion 1. The fastener 13 is formed by bending a metal plate into an obtuse angle. The fastener insertion opening 14 communicating with the band insertion hole 11 is opened on the surface where the lever body L is arranged in the band insertion / fixing portion 3. The fastener 13 is inserted through the fastener insertion opening 14, the proximal end of the fastener 13 is inserted and fixed in the fastener insertion hole 15, and the distal end thereof is attached to the band body B. The base end side of the band body B is fixed to the fastener body E by biting into the end portion on the base end side of the band body B by the acting tension.

  The upper surface of the band body insertion / fixing portion 3 is formed by connecting an inclined surface 16 that gradually increases in thickness as it moves away from the shaft support portion 4 and a parallel surface 17 parallel to the upper end surfaces of the pair of side wall portions 2. The pair of side wall portions 2 of the parallel body 17 portion of the band body insertion / fixation portion 3 is formed with an engaged groove 18 having an L shape when viewed from the inner surface. The engaged groove 18 includes an insertion groove 18a perpendicular to the parallel surface 17 and an engaged groove provided in parallel to the parallel surface 17 from the insertion groove 18a toward the shaft support 4 side. Groove portion 18b. Note that the engaged groove portion 18b of the engaged groove 18 exceeds the insertion groove portion 18a and reaches the end portion of the side wall portion 2 due to the slide mold used during the injection molding of the fastener body E. And it is a structure unrelated to the engagement function engaged with the engagement protrusion 39 of the lever body L.

  As shown in FIGS. 1 and 3, the upper end of the pair of side wall portions 2 of the shaft support portion 4 of the fastener body E protrudes from the side wall portion 2 of the slide prevention portion 34 of the lever body L. A crescent-shaped cover plate portion 19 is provided so as to cover the portion, and an inner surface of the cover plate portion 19 is formed on a tapered surface 19a in order to facilitate the assembly of the lever body L to the fastener body E. Yes.

  In order to assemble the lever body L to the fastener body E, the taper surface portion 35a of the support shaft portion 35 is directly below, and the lever body L is pushed into the shaft support portion 4 of the fastener body E, thereby tightening. The pair of side wall portions 2 of the shaft support portion 4 of the tool body E is slightly expanded, and the rotation shaft portion R of the lever body L is accommodated in the shaft support portion 4 of the fastening tool body E. As a result, the pair of support shaft portions 35 of the lever body L are disposed in the pair of bearing recesses 5 of the fastener body E, and a pair of arcuate surfaces on the upper surface of the bottom wall portion 1 that is the bottom surface of the shaft support portion 4 are paired. When the slide preventing portion 34 of the lever body L is brought into sliding contact with the support surface 6 a of the first support plate portion 6, the rotation shaft portion R of the lever body L can be rotated with respect to the shaft support portion 4 of the fastener body E. Supported by

  As shown in FIG. 8A, in a state where the lever body L is open with respect to the fastener body E (FIG. 8-A (a)), the lever body L is rotated with respect to the fastener body E. By moving and closing, as shown in FIG. 8A (b), until the lever body L is completely closed with respect to the fastener body E, the tension T acting on the band body B is The pair of slide preventing portions 34 of the lever body L are supported by the portions of the pair of first support plate portions 6 by slidingly contacting the support surfaces 6a of the pair of first support plate portions 6 of the fastener body E. Thus, the lever body L does not slide at all with respect to the fastener body E. As a result, a support shaft portion 35 that pivotally supports the lever body L with respect to the fastener body E, and a member that receives the tension T of the band body B (first and second support plate portions of the fastener body E). 6 and 7 are separated from the slide prevention portion 34 and the band body hook fixing portion 33) of the lever body L, and when the lever body L is rotated and closed with respect to the fastener body E, The pair of support shaft portions 35 that support the lever body L with respect to the fastener body E does not act on the tension T of the band body B and does not slide at all. The rotation operation of L becomes easy.

8A (b), when the lever body L is further rotated with respect to the fastener body E, the engagement protrusion 39 of the lever body L causes the engagement groove 18 of the fastener body E to be engaged. Then, the lever body L approaches the first and second support plate sections 6 and 7 due to the tension T of the band body B. [FIG. 8B (c)] As described above, the fastening tool main body E and the lever body L are relatively slid relative to each other by the slide amount (S) so that each of the fastening tool main body E provided on the outer peripheral surfaces of the pair of slide preventing portions 34 is provided. The first support plate portions 6 are fitted into the slidable grooves 36, and the engagement protrusions 39 of the lever body L are inserted into the engaged groove portions 18b of the fastener body E and engaged with each other [FIG. (D)] The first support plate portion is formed in the slidable groove 36 of the slide prevention portion 34 by the tension T acting on the band body B. Took fitted state, and the engagement state between the engaged groove 18b and the engaging projections 39 that is maintained, the engagement can not be released. Here, the pair of left and right first support plate portions 6 are respectively fitted in the slidable grooves 36 of the pair of slide prevention portions 34, thereby preventing the lever body L from rotating in the opening direction with respect to the fastener body E. However, the engagement between the engaged groove portion 18b and the engaging protrusion 39 prevents the lever body L from rotating in the opening direction more reliably. In FIG. 4A, the distance (M ′) between the end face of the insertion groove 18a of the engaged groove 18 on the side of the shaft support 4 and the position C ₁ is slightly smaller than the distance (M). The engagement protrusion 39 of the lever body L can be inserted into the insertion groove portion 18a of the engaged groove 18 of the fastener body E when the lever body L is closed.

  Further, in the state of FIG. 8B (d), the band body hooking and fixing portion 33 of the lever body L comes into contact with the support surfaces 7a of the pair of second support plate portions 7 due to the tension T of the band body B. Thus, the tension T of the band body B is supported by the pair of first support plate portions 6 and the pair of second support plate portions 7. In other words, since the tension T of the band body B is supported over almost the entire width in the width direction of the fastener body E and the lever body L, the supporting force becomes extremely large.

For example, as shown in FIG. 10, in order to fix the device storage box 72 to the installation pole 71 using the band body fastener F, one end side B ₁ is fixed to the fastener body E. The band body B is inserted into the band body insertion hole 73 on the back surface of the device housing box 72, and the other end side B ₂ of the band body B is pulled by the rotation of the lever body L and fixed to the lever body L. That is, as shown in FIG. 7A and FIG. 8-A (a), the lever body L is raised with respect to the fastener body E, and the band body hooking fixing portion 33 of the lever body L is fixed. The end of the other end side of the band body B is inserted through the provided band body insertion hole 32. In this state, the lever body L is attached to the fastener body E as shown in FIG. Pull down to the side. Thereby, the band body B inserted through the band body insertion hole 32 of the band body hooking fixing portion 33 of the lever body L is bent at an acute angle at two locations, so that the band body B does not sag. The device storage box 72 is fixed to the installation pole 71 by being tightened. The extra length at the tip of the band B from the bent portion is between the inclined surface 16 and the parallel surface 17 of the band body insertion / fixing portion 3 of the fastener body E and the lever portion 31 of the lever body L. Sandwiched between.

Further, by pulling down the lever body L with respect to the fastener body E, the engagement protrusion 39 of the lever body L is inserted into the insertion groove portion 18a of the engaged groove 18 of the fastener body E, When the fastener body E and the lever body L are pulled together by the tension T of the band body B, the fastener body E and the lever body L are connected to the first and second members of the fastener body E. 2, the engagement protrusion 39 of the lever body L is relatively slid so as to be close to the support plate portions 6 and 7 side, and the engaged groove 18 of the fastener body E is engaged. Since the engagement state is maintained by the tension T of the band body B after being inserted and engaged with the groove 18b, the engagement is not released. When the pair of first support plate portions 6 are fitted in the slidable grooves 36 formed on the outer periphery of the pair of slide preventing portions 34 of the lever body L, the lever body L can be slid. Further, as shown in FIGS. 7B and 8B (d), the band body hooking and fixing portion 33 of the lever body L by the relative sliding of the fastener body E and the lever body L described above. Is in contact with the pair of second support plate portions 7, the tensile force acting on the lever body L can be effectively received by the tension T on the other end side B ₂ of the band body B, as described above. It is.

  Further, the engagement between the engaged groove portion 18b of the fastener body E and the engagement protrusion 39 of the lever body L is such that the fastener body E and the lever body L are relatively moved by the tension T acting on the band body B. It is impossible to release it by sliding it. For this reason, in a state where the band body B is tightened using the band body fastener F, the engagement between the engaged groove 18 of the fastener body E and the engagement protrusion 39 of the lever body L is released. Is not easy.

  Therefore, in order to facilitate the release of the engagement, the engagement release groove of the lever body L is formed in a portion closer to the shaft support portion 4 than the engaged groove 18 in the pair of side wall portions 2 of the fastener body E. A disengagement groove 21 corresponding to 41 is formed. 9 and 10, when the lever body L is closed with respect to the fastener body E, the fastener body E and the lever body L slide relative to each other due to the tension T of the band body B. When the above-mentioned “engaged state” is established, the engagement release groove 21 of the fastener body E and the engagement release groove 41 of the lever body L are affected by the tension T of the band body B. Along the direction P, they are arranged so as to be partially overlapped. As a result, the tip of the minus driver 61 is inserted across the disengagement grooves 21 and 41 that are shifted in a partially overlapping manner along the direction of action P of the tension T of the band body B. Then, when the minus screwdriver 61 is twisted (forced to rotate), the fastener body E and the lever body L are slid in the opposite direction to the above, and the engagement groove 18 of the fastener body E is formed. The engagement between the engaged groove portion 18b and the engagement protrusion 39 of the lever body L is released, and the lever body L can be opened with respect to the fastener body E.

  Moreover, in the said Example, although the support shaft part 35 is provided in the lever body L side and the bearing recessed part 5 which supports the said support shaft part 35 is provided in the fastener body E side, The member in which the portion and the bearing recess are formed may be reversed from the above embodiment. That is, it is also possible to provide a short shaft-like support shaft portion on the inner surface of the pair of side wall portions 2 of the fastener body E, and to provide a bearing recess on the outer surface of the slide preventing portion 34 of the lever body L.

  The essence of the present invention is a structure in which the lever body is slightly slid in the direction of the tension by the tension applied to the band body when the lever body is closed with respect to the fastener body. Thus, the release of the engagement between the engaging portion of the lever body and the engaged portion of the fastener body is made impossible. Therefore, if a structure is adopted in which the lever body is slightly slid with respect to the fastener body by the tension acting on the band body, the engaging portion of the lever body and the fastener body The engaged portion of the lever body L is a position where both can be slid relative to the direction of the tension of the band body, and as in the above-described embodiment, the distal end portion of the lever portion 31 of the lever body L and the tightening Not only the end of the tool body E on the band body insertion / fixing part 3 side, but also any position. Specifically, the engaging portion is provided in a portion of the lever body L near the rotating shaft portion R in the lever portion 31, and the engaged portion is provided in a position corresponding to the engaging portion in the fastener body E. Is also possible.

B: Band body
B ₁ : One end side of the band body
B _2: the other end of the band body
C ₀ : Rotation axis of the rotation shaft
C ₁ : Position of the rotation axis when the lever body is rotated in the fastener body
C ₂ : Position of the rotational axis when the lever body is engaged in the fastener body
C _3: the center of formation of the arc-shaped slidable groove
E: Fastener body
F: Band body fastener
L: Lever body
P: Direction of action of tension of the band body (relative sliding direction of the fastener body and lever body)
R: Rotating shaft part of the lever body
S: Lever body slide amount
T: Band body tension
5: Bearing recess (bearing part)
6: 1st support board part (support part)
6a: Support surface
7: Second support plate (support)
7a: Support surface
18: Engagement groove (engaged part)
18a: insertion groove
18b: engaged groove
21: Disengagement groove of the fastener body
33: Band body hook fixing part
34: Slide prevention part
35: Support shaft
36: Slideable groove
39: Engagement protrusion (engagement part)
41: Lever body disengagement groove

Claims (5)

It consists of a clamp body to which one end side of the belt-shaped band body is fixed, and a lever body that is pivotally supported by the clamp body through a rotating shaft portion,
By closing the lever body to the side of the fastener body, the other end side of the band body is drawn and a band body fastener configured to tighten the band body against an object to be tightened,
One of the lever body and the fastener body is provided with the rotating shaft portion, and the other is a bearing portion that pivotally supports the rotating shaft portion, and the rotating shaft portion is connected to the band. A support part is provided for supporting along the body tension direction,
The rotating shaft portion is provided on the support portion to prevent the fastener body and the lever body from sliding relative to each other until the lever body is closed with respect to the fastener body. A disc-shaped slide preventing portion that comes into sliding contact is provided, and an outer peripheral surface of the slide preventing portion is formed with a slidable groove having an arcuate groove shape,
By closing the lever body with respect to the fastener body, the fastener body and the lever body slide relative to each other due to the tension of the band body, and the support portion is fitted into the slidable groove. The band body fastener characterized by being.   An engaging portion that engages with the lever body and the fastener body along the direction of the tension of the band body to disable the lever body from rotating in the opening direction, and the engaged body The band body fastener according to claim 1, wherein each of the portions is formed.   The said slide prevention part which comprises the said rotating shaft part, and a pair of support shaft part provided in the both ends of the width direction are each provided individually, The Claim 1 or 2 characterized by the above-mentioned. Band body fasteners. The rotation shaft portion is provided in the lever body, and the rotation shaft portion is formed with a band body hooking portion for partially winding and hooking the other end portion of the band body,
4. The structure according to claim 1, wherein the band body hooking portion is supported by the support portion by a tension acting on the band body by closing the lever body with respect to the fastener body. The band body fastener according to any one of the above.   The lever body and the fastener body are each formed with a disengagement groove formed so as to be shifted along the direction of the tension of the band body in a state where a part thereof overlaps each other. Item 5. The band body fastener according to any one of Items 1 to 4.

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