JP2008232222A - Binding band installing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To smoothly and surely install a binding band in a wall part of a member such as an electric connection box and a bracket structure with excellent workability. <P>SOLUTION: This structure is provided by inserting the binding band 49 into the other hole part 24<SB>2</SB>from one hole part 24<SB>1</SB>, by communicating and arranging a pair of hole parts 24 with and in the wall part 15a via a partition wall 25. The other hole part 24<SB>2</SB>is formed deeper than one hole part, and an inclined face 34 turning to an opening 24a<SB>2</SB>of the other hole part, is formed in the other hole part, and the tip of the binding band is guided to the opening along the inclined face. An inclined face 33a turning to the inner surface side of the partition wall is formed on a bottom wall 30 of one hole part, and the tip of the binding band is guided to the opening 24a<SB>2</SB>of the other hole part along the inclined face. A projection 36 preventing turning-back by engaging a locking projection 52 of the binding band, is arranged on the inner surface side of the partition wall 25 in the other hole part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a binding band mounting structure for fixing a linear body such as a wire harness by inserting a binding band through a pair of holes provided in a wall portion.

  FIG. 6 shows an example in which a conventional binding band mounting structure is applied to an electrical junction box.

  This electrical connection box (junction box or junction block) 41 is erected from a circuit board on a synthetic resin case 42, a circuit board (not shown) mounted in the case 42, and the opening 43 side of the case 42. The component connection parts 44 and 45 which accommodate the terminal (not shown) and the connector 46, and a pair of brackets 47 provided integrally on the outside of the case 42 are provided (for example, refer to Patent Document 1).

  The component connecting portion is a relay connecting portion 44 or a fuse connecting portion 45, and is constituted by a connecting portion main body (represented by reference numerals 44 and 45) integrated with the case 42 and a terminal (not shown) on the circuit board side. The circuit board is appropriately provided with a circuit such as a printed circuit and a bus bar circuit such as an electric wire.

  There are two connectors 46, one for input and one for output. The connector of the wire harness (not shown) on the power supply side is connected to the connector 46 for input, and is relayed from the circuit board through relays and fuses of the component connecting portions 44 and 45. The output connector 46 is connected to a load-side wire harness (not shown). That is, the power source current is distributed to the load side through components such as a relay and a fuse of the electrical connection box 41.

  The opening 43 of the case 42 is closed by a cover (not shown), and an input wire harness (not shown) is inserted through the hole of the cover. The case 42 may be referred to as a lower cover. The position of the input / output connector 46 is not limited to the opening 43 side of the case 42 but may be arranged on the back side or back side of the case 42. Also, an electronic control unit (not shown) may be attached to the back surface of the case 42 and connected to the circuit board in the case 42.

  Each bracket 47 has a hole 47a for inserting a bolt, and is fastened and fixed to a vehicle body, a panel or the like with a bolt (not shown). The attachment direction of the electrical junction box 41 to the vehicle body or the like is not limited to the horizontal orientation, and may be attached vertically or obliquely.

  When an external wire harness (a plurality of electric wires) 31 irrelevant to the electrical connection box 41 is attached (routed and fixed) to the case 42 of the electrical connection box 41, for example, the wire harness bundling is performed on the outer wall 57 of the case 42. A frame-like portion 50 having a hole 50 a through which a synthetic resin band 49 is inserted is provided, and the wire harness 31 is fastened and fixed to the frame-like portion 50 with the band 49.

  FIGS. 7A and 7B show one form of a binding band (see, for example, Patent Document 2).

  The binding band 49 is made of a synthetic resin and has a flexible band-shaped band body 51 having a serrated protrusion (locking protrusion) 52 on the surface, and an insertion member provided at the base end of the band body 51. It consists of a stop 53. The serrated projection 52 has an inclined surface for sliding contact and a locking surface substantially orthogonal to the band main body 51.

The band main body 51 is inserted into the hole 55 inside the frame-shaped part 54 of the insertion locking part 53 from the distal end part 51 a side, and the wire harness 31 is tightened by the band main body 51 so that the saw-toothed protrusion 52 can be inserted into the hole 55. It is locked by a flexible locking piece 56. After tightening, the front end portion 51a of the band body 51 protrudes from the frame-like portion 54 and is cut off because it is an obstacle.
Japanese Patent Laid-Open No. 11-266515 (FIG. 1) Japanese Patent Laid-Open No. 10-37917 (FIGS. 7 to 9)

  However, in the conventional binding band mounting structure shown in FIG. 6, the band 49 protrudes outward by the frame-like portion 50, so that there is a problem that the stability of the wire harness 31 is poor.

  Therefore, when a pair of holes (not shown) through which the binding band 49 is inserted are provided in the flat outer wall 57 of the case 42 and the binding band 49 and the wire harness 31 are directly supported by the outer wall 57, the case 42 With the upper cover removed and the case 42 open, the binding band 49 is inserted into the case 42 from one hole and then protrudes outward from the other hole. There is a problem that the place where the binding band 49 is attached is also limited. Further, since the band main body 51 (FIG. 7) of the binding band 49 has a certain degree of bending rigidity, there is a problem that it is difficult for the operator to smoothly insert (penetrate) the band main body 51 into the pair of holes.

  Depending on how the electrical junction box 41 is used, the wire harness 31 may not be attached, and the attachment (routing) work of the wire harness 31 is often performed before shipment in a warehouse or the like instead of a production line, and an unfamiliar worker However, a structure that allows the binding band 49 to be easily inserted is desired.

  For example, when the electrical connection box 41 is fixed to a vehicle body, a panel or the like via another bracket structure (not shown), the binding band 49 is smoothly inserted (mounted) into the bracket structure instead of the electrical connection box 4. It was necessary to let them.

  The present invention has been made in view of the above points, and an object thereof is to provide a binding band mounting structure capable of mounting a binding band smoothly and reliably on a wall portion of a member such as an electric junction box or a bracket structure with good workability. And

  In order to achieve the above object, a binding band mounting structure according to claim 1 of the present invention is provided with a pair of holes communicating with each other via a partition wall in a wall, and from one hole to the other hole. In the structure in which the binding band is inserted into the other hole, the other hole is formed deeper than the one hole, and an inclined surface toward the opening of the other hole is formed in the other hole. The tip of the band is guided to the opening along the inclined surface.

  With the above configuration, when the binding band is inserted from one hole into the other hole, the other hole is deeper than the other hole, so that the tip of the binding band is surely inclined in the other hole. It abuts against the wall and is guided to the opening of the other hole while smoothly sliding along the inclined wall, and the binding band protrudes outside the other hole while curving around the partition wall. When the worker sets a linear body such as a wire harness inside the binding band and tightens the binding band, the linear body is directly fixed to the wall portion.

  The structure for attaching the binding band according to claim 2 is a structure in which a pair of holes are provided in communication with each other through a partition wall and the binding band is inserted from one hole to the other hole. An inclined surface directed toward the inner surface side of the partition wall is formed on the bottom wall of the hole portion, and the tip of the binding band is guided to the other hole portion along the inclined surface.

  With the above configuration, when the binding band is inserted into one of the holes, the band is directed toward the inner surface of the partition wall while the tip of the binding band is in sliding contact with the inclined surface (preferably the inclined surface of the protrusion) in the hole. The tip is curved, the band tip advances toward the opening of the other hole that follows the partition wall, and protrudes outward from the opening. For example, if an inclined wall in the other hole portion described in claim 1 is provided in addition to the configuration of claim 2, even if the band tip does not protrude into the opening of the other hole portion due to variations, the inclined wall extends along the inclined wall. To the opening.

  The binding band mounting structure according to claim 3 is a structure in which a pair of holes are provided in communication with each other through a partition wall in a wall portion, and the binding band is inserted from one hole portion into the other hole portion. A protrusion is provided on the inner surface side of the partition wall within the hole to prevent the binding band from engaging, thereby preventing the cable from returning backward.

  With the above configuration, when the binding band is inserted into the other hole from one hole, or when it is led out from the opening of the other hole, the projection for locking the binding band is defined. Engaging with the protrusions on the wall prevents the binding band from reversing.

  According to the first aspect of the present invention, the binding band inserted into one hole is automatically led out from the opening of the other hole along the inclined surface of the other hole. The binding band insertion operation is easily and reliably performed, and the workability of tightening and fixing the wire body such as the wire harness to the wall portion by the binding band is improved.

  According to the second aspect of the present invention, since the binding band inserted into one hole is guided along the inclined surface in one hole and guided to the opening side of the other hole, the binding band is bonded to the hole. The band insertion operation is easily and reliably performed, and the workability of tightening and fixing the wire body such as the wire harness to the wall portion by the binding band is improved.

  According to the third aspect of the present invention, since the binding band inserted from one hole to the other hole is prevented from reversing by the projection of the partition wall, the binding band once inserted does not inadvertently come off. In addition, the workability of inserting the binding band and the workability of tightening the linear member by the binding band are improved.

  1 to 5 show an embodiment of a binding band mounting structure according to the present invention.

As shown in FIG. 1, the binding band mounting structure includes a separate bracket structure 2 (FIG. 3) attached to the case 4 of the electrical junction box 1 (FIG. 2). In the case where the external wire harness 31 unrelated to the connection box 1 is placed and fixed by the synthetic resin binding band 49, the flexible binding band 49 is inserted into the bracket structure 2 as shown in FIG. A pair of hole portions 24 (24 ₁ , 24 ₂ ) are provided in communication with each other, and a device that allows the binding band 49 to be smoothly and reliably inserted into the pair of hole portions 24 is characterized.

  In the example of FIG. 1, the wire harness 31 is fastened and fixed by a plurality of binding bands 49. The binding band 49 is arranged above and below the upper and lower end portions (harness lead-out side) of the bracket structure 2 and the intermediate bent portion 31a so as to support the wire harness 31 in a substantially L-shaped configuration. Yes.

  The bracket structure 2 is obtained by extending the main bracket 17 to the rear side of the vehicle body or the like that cannot be reached by the bracket 6 of the electrical junction box 1, and the upper and lower parts of the electrical junction box 1 on the sub brackets 9 and 10 of the bracket structure 2. The brackets 5 and 6 are fastened and fixed with bolts and nuts, and the extended main bracket 17 of the bracket structure 2 or the hole 23 provided in the flat substrate portion 15 is fixed to the vehicle body or panel with bolts.

  The binding band 49 is an existing one similar to that shown in FIG. 7 of the conventional example (explained with reference to FIG. 7), and has a band-like shape having serrated projections (locking projections) 52 on the surface. The band main body 51 and the insertion locking part 53 provided at the end of the band main body 51 are inserted into the hole 55 of the insertion locking part 53, the wire harness 31 is tightened, and the sawtooth projection 52 is locked by a flexible locking piece 56 in the hole 55.

  As shown in FIG. 2, the electrical connection box 1 includes a rectangular block-shaped synthetic resin case (connection box body) 4, a pair of brackets 5, 6 integrally provided on the diagonal of the case 4, and the case 4. Input / output connectors 7 provided on the side surfaces, a circuit board (not shown) disposed in the case 4, and electrical components such as relays and fuses (not shown) connected to the circuit board Is provided.

  The electrical parts are sealed with a cover 8, and the cover 8 is locked to the case 4 by locking means 13 (FIG. 1). The cover 8 may be viewed as a part of the case 4. The case 4 includes a front-side vertical and wide wall surface 14 that is in close contact with the bracket structure 2, a horizontal upper wall surface 18 that projects the upper bracket 5, and a lower horizontal surface that projects the lower bracket 6. Wall surface 19 and vertical side wall surface 20 on which connector 7 is arranged.

  Each connector 7 has a plurality of pin-shaped male terminals (not shown) in a connector fitting chamber (represented by reference numeral 7), and by rotating a lever (not shown), It is preferable that fitting and disengagement with a connector (not shown) is performed smoothly and reliably.

  The electrical junction box 1 of this example is arranged vertically (vertically) inside (back) the instrument panel of the automobile, and is fixed to the instrument panel (attachment side) with the bracket structure 2 (FIG. 1). The upper and lower brackets 5 and 6 of the electrical junction box 1 are fastened and fixed to the upper and lower sub brackets 9 and 10 of the bracket structure 2 with bolts and nuts 12 (FIG. 3). The nut 12 is fixed to the bracket structure 2 in advance.

  As shown in FIGS. 3 (a) and 3 (b) ((a) is a front view and (b) is a back view), the bracket structure 2 includes a flat and wide vertical substrate portion 15 and one end (lower end) of the substrate portion 15. ) Side, and a horizontal extension 16 projecting from one side end (front end) of the substrate portion 15 in the width direction of the substrate portion and projecting from the wall surface (surface) 15a of the substrate portion 15 in a plate-like direction in a stepped manner. The main bracket 17 on the front end (front end) side of the portion 16, the reinforcing vertical protruding wall 21 that bulges to the surface side at the center in the width direction of the substrate portion 15 and intersects the center of the extension portion 16, The sub brackets 9 and 10 projecting diagonally on the upper front end side and the lower rear end side are formed by integral resin molding.

  The main bracket 17 and the sub brackets 9 and 10 have bolt insertion holes and nuts 12 and 22 communicating with the holes, respectively. An oval hole 23 is provided on the upper rear end side of the substrate portion 15 and near the rear end of the extension portion 16.

  The bracket structure 2 is fastened and fixed to the panel (not shown) of the vehicle body with bolts (not shown) by the main bracket 17 and the holes 23. A plurality of reinforcing ribs (not shown) are provided so as to intersect each other on the back surface of the substrate portion 15 and the inside of the extension portion 16. In addition, in this embodiment, the directionality of up and down, front and rear, right and left is for convenience of explanation, and does not necessarily coincide with the mounting direction of the electrical junction box 1.

  A pair of hole portions 24 through which the binding band 49 (FIG. 1) is inserted are disposed at the main points of the substrate portion 15. In this example, corresponding to the position of the binding band 49 in FIG. 1, the pair of hole portions 49 are arranged symmetrically in the vertical direction on the upper side of the bracket structure 2, and the intermediate portion and the lower portion of the bracket structure 2 are arranged. The pair of holes 24 are symmetrically arranged in the front-rear direction.

As shown in FIGS. 4A and 4B (FIG. 3A is a plan view of the portion A in FIG. 3 and FIG. 4B is a sectional view taken along the line BB in FIG. 4A), a pair of holes 24 (24 ₁ and 24 ₂ ). , The openings 24a ₁ and 24a ₂ are adjacent to each other through the central partition wall 25 and communicate with each other inside the partition wall 25 (in the hole 24). The partition wall 25 is located on the front surface side of the substrate portion 15 of the bracket structure 2 (a part of the front surface side wall portion 15a). The front surface side wall portion 15a is an inner surface side rib 26 and a rear surface side wall portion. Continuing on from 15b, a space 27 is formed between the front and back wall portions 15a, 15b. In the vicinity of the pair of holes 24 and in the vicinity thereof, the wall 15b on the back surface side is eliminated (opened).

One hole 24 ₁ of the pair of holes 24 are formed shallower, the other hole portion 24 ₂ is deeply formed, Ryoana unit ₂₄ 1, 24 ₂ is communicated via a step, Ryoana 24 ₁ located partition walls 25 to the intermediate upper portion of 24 _2, the bottom side of the opening (punched holes during resin molding) 28 to face the partition walls 25 are formed. The width of the partition wall 25 is slightly narrower than the opening 28 on the bottom side. Ties 49 (FIG. 5) exits is inserted from one of the holes 24 ₁ from the other hole portion 24 ₂ to the surface outside.

One of the holes 24 _1, an inclined wall (inclined surface) 29 following the opening 24a _1, following the inclined wall 29, the surface side of the wall portion 15a and a horizontal bottom wall extending parallel to the partition wall 25 side (the wall ) 30 (horizontal is the direction when the bracket structure 2 is placed horizontally, and the hole 24 will be described with reference to this direction), a vertical step perpendicular to the bottom wall 30 toward the back side And a wall 32. At the intersection of the bottom wall 30 and the step wall 32, an inclined projection 33 having a small upwardly inclined surface 33a toward the back surface 25a of the partition wall 25 is formed, and the inclined surface 33a follows the upper surface of the bottom wall 30. Yes. Projection 33 is a projection that follows the width (transverse) direction of the opening 24a _1.

Other hole portion 24 _2, the inclined wall 34 having an inclined surface 34a that follows the opening 24a _2, following the inclined wall 34, the surface side of the wall portion 15a and a horizontal bottom wall (wall extending parallel to the partition wall 25 side Part) 35. Inclined wall 34 is longer than the sloped wall 29 of one of the holes, at an inclination angle of the two inclined walls 29, 34 is approximately the same extent (about 45 °), both inclined walls 29, 34 each aperture _24a 1, 24a ₂ It inclines in the shape of a substantially reverse C toward The bottom wall 35 faces the step wall 32 of _one hole 241 and continues to the opening 28 on the bottom side.

The inclined projections 36 having a small inclined face 36a to the end portion of the partition wall 25 in the other hole portion 24 ₂ side is formed, the inclined surface 36a continues to the rear surface (inner surface) 25a of the partition wall 25, and partition walls 25 It continues at an acute angle to the open end face 25b. Projection 36 is a projection that follows the width (transverse) direction of the opening 24a _2.

As shown in FIG. 5 (a), when inserting the binding band 49 to one of the holes 24 _1, sliding contact with the tip of the binding band 49 along the inclined surface 33a of the protrusion 33 of one of the holes 24 in ₁ is guided in a direction (upward) along the inclined surface 33a Te in sliding contact on the back surface 25a of the partition wall 25, or to exist a gap between the rear surface 25a of the partition wall 25, other hole portion 24 ₂ of the opening It is guided toward the 24a _2. Thus, the tip portion 51a of the binding band 49 is smoothly and reliably inserted from the opening 24a ₁ of one of the holes 24 ₁ to the opening 24a ₂ of the other hole portion 24 _2.

When inserting the binding band 49 to one of the holes 24 _1, the inclined wall 29 is smoothly guided along the front end of the binding band 49 to the horizontal wall portion 30. Then, as shown in FIG. 5 (b), it is upwardly guided toward the opening 24a ₂ tip end of the binding band 49 is in sliding contact along the other hole portion 24 ₂ of the inclined wall (inclined surface) 34.

Other hole portion 24 ₂ is formed deeper than one hole 24 _1, because they have a long inclined surface 34, toward the opening 24a ₂ reliably capture the distal end of the binding band 49 by the inclined surface 34 Can be guided upwards.

Outside tip end of the binding band 49 by the action of one of the hole portion 24 ₁ side angled projections 33 directly from the hole portion 24 ₂ of the opening 24a ₂ without sliding contact with the inclined surface 34 of the other hole portion 24 ₂ It may protrude.

  The binding band 49 is guided upward by the inclined projection 33 and the surface of the binding band 49 is pressed against the inner surface 25a side of the partition wall 25, so that the saw-tooth projection 52 on the surface of the binding band 49 is surely separated from the partition wall. 25 projections 36 are engaged.

  When the binding band 49 passes the back surface 25 a side of the partition wall 25, the sawtooth protrusion 52 of the binding band 49 engages (engages) with the inclined protrusion 36 of the partition wall 25, and the binding band 49 moves back. Is prevented. This is also effective for a binding band having protrusions that are not serrated. As a result, the binding band 49 once inserted by the operator is prevented from returning and coming out, and this also improves the workability of inserting the binding band 49.

  In FIG. 1, the operation of fixing the wire harness 31 to the bracket structure 2 with the binding band 49 is preferably performed in a state where the bracket structure 2 is assembled to the electrical junction box 1. After fixing the wire harness 31 to the bracket structure 2 with the binding band 49, it is possible to assemble the bracket structure 2 to the electrical junction box 1, but the wire harness 31 interferes with the assembly work of both 1 and 2. It is difficult to do.

  Since the back surface 15b of the bracket structure 2 is in close contact with the electrical junction box 1, the band insertion hole 24 does not penetrate the back surface 15b, and the binding band 49 is inserted into the hole 24 from an oblique direction. However, the hole structure described with reference to FIGS. 4 to 5 enables a simple, smooth and reliable band insertion operation.

  The electrical junction box 1, the bracket structure 2, the wire harness 31, and the binding band 49 constitute an electrical junction box assembly 37. The electric junction box assembly 37 is fixed to, for example, the wall portion (attachment side) inside the instrument panel of the vehicle by the main bracket 17 of the extension portion 16 of the bracket structure 2.

In the above-described embodiment, the inclined surfaces 29 and 34 are formed in a reverse C shape in both the hole portions 24 ₁ and 24 _2. For example, the inclined surface 29 of _one hole portion 241 is a vertical surface and the other only by forming the inclined surface 34 of the hole portion 24 _2, it is possible to along the inclined surface 34 is guided front end of the binding band 49 into the opening 24a _2. In this case, for example, the inclined projection 33 on one hole side and the projection 36 of the partition wall 25 can be eliminated. It is also possible to provide the inclined protrusion 33 and eliminate the protrusion 36, or conversely, to provide the protrusion 36 and eliminate the inclined protrusion 33. These portions 29, 33, 33, and 36 have an effect alone and have a further effect synergistically.

  Moreover, in the said embodiment, although the external wire harness 31 was fixed to the bracket structure 2 with the binding band 49, it replaced with the external wire harness 31 and the wire harness (not shown) derived | led-out from the electrical junction box 1 was shown. It is also possible to fix to the bracket structure 2 with the binding band 49 in the same manner.

  Moreover, in the said embodiment, although the wire harness 31 was routed and fixed to the bracket structure 2 in the form bent in the substantially L shape, for example, the wire harness 31 is substantially U-shaped (obtuse) or substantially V. It is also possible to route and fix in a shape bent in a letter shape (acute angle) or in a straight shape without bending. The number and arrangement of the binding bands 49 to be used are appropriately set according to the bent form of the wire harness 31 and the like. When wiring the wire harness 31 linearly, the binding band 49 may be one.

  Moreover, in the said embodiment, although the bracket structure 2 which has the elongate elongated extension part 16 was used, as a bracket structure, a thing one size larger than the electrical junction box 1, or the electrical junction box 1 Some of the parts that protrude outwardly are used, and the part protruding from the electrical junction box 1 is used as an extension. A hole is provided in the extension, and the hole is fixed to the mounting side with a bolt. It is also possible to do.

  Moreover, in the said embodiment, although the hole 24 for band penetration was provided in the bracket structure 2, it replaces with the bracket structure 2, for example, the synthetic resin case 4 of the electrical connection box 1, etc. inside. It is also effective to provide a band insertion hole 24 on the outer wall of a portion where a hand cannot be inserted.

  Moreover, in the said embodiment, although demonstrated by the example which fixes the wire harness (plural electric wire) 31 with the binding band 49, it replaces with the wire harness 31 as a linear body, and is an air hose, water supply hose, or optical fiber for motor vehicles. It is also possible to fix them with a binding band 49.

  Moreover, although the said embodiment demonstrated as a mounting structure of a binding band, it is effective as a fixing structure of a linear body using a binding band, a harness wiring structure, etc. other than that.

It is a perspective view which shows one application example of the attachment structure of the binding band which concerns on this invention. It is a perspective view which similarly shows one form of the electrical-connection box in an application example. The form of the bracket structure of an application example is similarly shown, (a) is a front perspective view, and (b) is a rear perspective view. (A) is the A section enlarged plan view of Drawing 3 showing the hole for band penetration, and (b) is a BB sectional view of (a). It is sectional drawing which similarly shows the state (action | operation) which makes a hole pierce a binding band. It is a perspective view which shows one form of the mounting structure of the conventional binding band. 1A and 1B show a form of a conventional binding band, in which FIG. 1A is a perspective view and FIG. 2B is a cross-sectional view of a state in which a wire harness is bound.

Explanation of symbols

Projections 15a wall portion 24 ₁ one of the holes 24 ₂ other hole portion 25 partition wall 30 bottom wall 33a inclined surface 34a inclined surface 36 protrusion 49 for the binding band 52 engaging

Claims (3)

  In the structure in which a pair of holes are provided in communication with each other via a partition wall and a binding band is inserted from one hole to the other hole, the other hole is deeper than the one hole. A binding band, characterized in that an inclined surface is formed in the other hole portion toward the opening of the other hole portion, and a tip of the binding band is guided to the opening along the inclined surface. Mounting structure.   In the structure in which a pair of holes are provided in communication with each other through a partition wall and a binding band is inserted from one hole to the other hole, the bottom wall of the one hole is connected to the bottom wall of the partition wall. An attachment structure for a binding band, wherein an inclined surface directed toward an inner surface is formed, and a tip of the binding band is guided to the opening of the other hole along the inclined surface.   In the structure in which a pair of holes are provided in communication with each other via a partition wall in the wall, and a binding band is inserted from one hole to the other hole, the inner surface of the partition wall in the other hole, A binding band mounting structure, characterized in that a projection is provided to engage the locking projection of the binding band to prevent reversal.

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