Abstract:
Provided is a harness protector, wherein a wire harness can easily be formed into a planar shape (with an oblate cross section), and maintained in that state. The harness protector is provided with: a protector body further provided with a roughly tabular-shaped bottom-plate section onto which a wire harness is to be placed, and a holding plate section that is integrally formed on one side of the bottom-plate section in pivotable state, and crushes the wire harness into an oblate cross-section shape, along with the bottom-plate section; and tying bands that anchor the holding plate section onto the bottom-plate section, in a state of having the holding plate section crushing the wire harness into an oblate cross-section shape.

Description:
TECHNICAL FIELD 
     The invention relates to a harness protector that anchors a wire harness to a structure on a wire-harness wiring path in a vehicle and the like, and a wire-harness wiring structure using the harness protector. 
     BACKGROUND ART 
       FIGS. 9 to 12  show a conventional example of a band clamp for wire harness that anchors a wire harness to a structure on a wire-harness wiring path in a vehicle and the like. 
     As shown in  FIG. 10 , a wire harness  103  that is anchored to a structure by a band clamp  101  for wire harness has a configuration where an exterior material  105  covers an outer periphery of a bundle of a plurality of wires  104 . 
     The band clamp  101  for wire harness has a placing plate section  111 , a tying band section  121  that extends from one end of the placing plate section  111 , a band engagement section  131  that extends from the other end of the placing plate section  111  and a clip section  141  (refer to  FIG. 11 ) that protrudes from a backside of the placing plate section  111 . 
     In the band clamp  101  for wire harness, the placing plate section  111 , the tying band section  121  and the band engagement section  131  have the same configurations as a tying band disclosed in Patent Document 1. Also, the clip section  131  of the band clamp  101  for wire harness has the same structure as an anchor projection disclosed in Patent Document 2. 
     In the below, the structures of the placing plate section  111 , the tying band section  121 , the band engagement section  131  and the clip section  141  are more specifically described. 
     The placing plate section  111  is a part onto which the wire harness  103  is placed, and has a tabular shape. 
     The tying band section  121  extends in a direction (refer to an arrow A direction in  FIG. 9 ) orthogonal to an axial line of the wire harness  103  from one end of the placing plate section  111  so that it can be wound onto an outer periphery of the wire harness  103  placed on the placing plate section  111 . Also, one surface (an opposite surface to a side contacting the wire harness  103 ) of the tying band section  121  is formed with a plurality of engaging recesses  122  at a predetermined interval in the extension direction (refer to an arrow A direction in  FIG. 9 ) of the tying band section  121 . 
     The band engagement section  131  is integrally formed with the other end of the placing plate section  111 . The band engagement section  131  has insertion-penetration holes  132  into which the tying band section  121  is inserted and latching claws  133  (refer to  FIG. 11 ) that are formed in the insertion-penetration holes  132 , are engaged with the engaging recesses  122  and restrain the tying band section  121  inserted into the insertion-penetration hole  132  from moving in a return direction, and is integrally formed at the other end of the placing plate section  111 . 
     The clip section  141  is provided to protrude from the backside of the placing plate section  111  and is fitted into an attaching hole  152  of a structure  151  on a wiring path of the wire harness  103 , thereby connecting the placing plate section  111  to the structure  151  (refer to  FIG. 12 ). Meanwhile, in  FIG. 9 , the clip section  141  provided on the backside (the upper surface) of the placing plate section  111  is not shown. 
     An operating sequence of anchoring the wire harness  103  to the structure  151  by the band clamp  101  for wire harness is as follows. 
     First, as shown in  FIG. 10 , the wire harness  103  is placed on the placing plate section  111  of the band clamp  101  for wire harness and the tying band section  121  is then wound onto the outer periphery of the wire harness  103 . Then, as shown in  FIG. 11 , a leading end of the tying band section  121  is inserted into the insertion-penetration hole  132 . Then, as shown in  FIG. 12 , the leading end of the tying band section  121  is extended to anchor the wire harness  103  to the placing plate section  111  until the tying band section  121  firmly tightens the outer periphery of the wire harness  103 . After that, the clip section  141  is fitted into the attaching hole  152  of the structure  151 . 
     CITATION LIST 
     Patent Literature 
     
         
         [Patent Document 1] JP-A-9-58742 
         [Patent Document 2] JP-A-9-250515 
       
    
     SUMMARY OF INVENTION 
     Technical Problem 
     In recent years, as the number of electronic components to be mounted on a vehicle is increased, the number of the wires  104  to be accommodated in the wire harness  104  is also increased, so that the bundle tends to be enlarged. However, it is difficult to bend the wire harness having the enlarged diameter. Therefore, a bending radius of the wire harness becomes larger, so that a wide wiring space is required and a wiring operability is deteriorated. 
     Accordingly, in order to improve the wiring operability of the wire harness and to save the space of the wiring region in the vicinity of a part in which the wire harness is bent and arranged, it is necessary to form the wire harness  103  having a circular cross section into a planar shape (with an oblate cross section). 
     However, according to the band clamp  101  for wire harness, even when the tying band section  121  is tightened, it is not possible to exhibit an operation of crushing the wire harness  103  in one direction. Therefore, it is not possible to form the wire harness  103  into a planar shape (with an oblate cross section). 
     Also, according to the band clamp  101  for wire harness, a surface of the placing plate section  111  or tying band section  121  contacting the wire harness  103  is planar, so that the wire harness  103  is apt to slip. Therefore, the force of restraining the axial movement of the wire harness  103  is weak. Thus, for example, for a configuration where the wire harness is arranged between two structures over a moveable connection section that moveably connects the two structures, when axial load is applied to the wire harness  103  by relative movement of the two structures, the wire harness  103  is positionally deviated in the axial direction, so that a hindrance may be caused as regards the relative movement between the structures. 
     Therefore, the invention has been made to solve the above problems. An object of the invention is to provide a harness protector capable of easily forming a wire harness into a planar shape (with an oblate cross section) and maintaining the same in that state, improving a wiring operability of the wire harness and saving a space of a wiring region, and to provide a wire-harness wiring structure suitable for a wire harness that is arranged over a moveable connection section. 
     Solution to Problem 
     The above object of the invention is realized by following configurations. 
     (1) A harness protector comprising: 
     a protector body comprising a substantially tabular-shaped bottom-plate section on which a wire harness is placed and a substantially tabular-shaped holding plate section that is integrally and rotatably formed on one side of the bottom-plate section and crushes the wire harness into an oblate cross-section shape with the wire harness being interposed between the holding plate section and the bottom-plate section, and 
     a tying band adapted to anchor the holding plate section onto the bottom-plate section in a state where the holding plate section crushes the wire harness into the oblate cross-section shape. 
     (2) In the harness protector described in the above (1), the protector body comprises a pair of side-plate sections that is provided to stand at both sides of the bottom-plate section, and the holding plate section is integrally and rotatably formed with one of the pair of side-plate sections, the harness protector further comprises a protector cover that is detachably engaged with the protector body and covers an opening section of the protector body. 
     (3) In the harness protector described in the above (1) or (2), the holding plate section is provided with a first movement restraint projection that breaks into a contacting surface of the wire harness to thus restrain axial movement of the wire harness. 
     (4) In the harness protector described in one of the above (1) to (3), the bottom-plate section is provided with a second movement restraint projection that breaks into a contacting surface of the wire harness to thus restrain axial movement of the wire harness. 
     (5) In the harness protector in one of the above (1) to (4), the harness protector further comprises an anchoring section that protrudes from an outer surface of the protector body and is fitted into an attaching hole of a structure on a wiring path of the wire harness, thereby connecting the protector body to the structure. 
     (6) A wire-harness wiring structure that arranges a wire harness between two structures over a moveable connection section moveably connecting the two structures, wherein the harness protector described in one of the above (1) to (5) is used as a means for anchoring the wire harness to the structures in the vicinity of the moveable connection section. 
     According to the above (1) configuration, since the wire harness to be maintained is anchored with being interposed and crushed between the substantially tabular-shaped bottom-plate section and the holding plate section, it is possible to easily form and maintain the wire harness into the planar shape (with an oblate cross section). In the vicinity of the anchored part by the harness protector, as the wire harness is made to be planar, it is possible to easily bend the wire harness with a small bending radius. Therefore, it is possible to improve the wiring operability of the wire harness and to save the space of the wiring region. 
     According to the above (2) configuration, the protector body has a U-shaped cross section by the bottom-plate section and the pair of side-plate sections at both sides of the bottom-plate section. When the wire harness is placed on the bottom-plate section, the pair of the side-plate sections at both sides of the bottom-plate section restrains movement of the wire harness in a width direction. Therefore, it is possible to easily anchor the wire harness to the harness protector, thereby improving the wiring operability. 
     Also, the protector cover that covers the opening section of the protector body is provided. Therefore, it is possible to suppress the wire harness from being exposed on the harness protector, thereby improving the protective effect on the wire harness. 
     According to the above (3) configuration, at the state where the wire harness is held by the holding plate section and the bottom-plate section, the first movement restraint projection provided to the holding plate section breaks into the surface of the wire harness, thereby restraining the axial movement of the wire harness. 
     Therefore, compared to the conventional band clamp in which a surface contacting the wire harness is planar, it is possible to anchor the wire harness more firmly. Hence, the invention can be also appropriately applied to anchor the wire harness at a place where axial load is applied to the wire harness. 
     According to the above (4) configuration, at the state where the wire harness is held by the holding plate section and the bottom-plate section, the second movement restraint projection provided to the bottom-plate section breaks into the surface of the wire harness, thereby restraining the axial movement of the wire harness. 
     Therefore, compared to the conventional band clamp in which a surface contacting the wire harness is planar, it is possible to anchor the wire harness more firmly. Hence, the invention can be also appropriately applied to anchor the wire harness at a place where the axial load is applied to the wire harness. 
     According to the above (5) configuration, the anchoring section that protrudes from the outer surface of the protector body is fitted into the attaching hole of the structure on the wiring path of the wire harness. Thereby, it is possible to easily connect the protector body to the structure. 
     According to the above (6) configuration, the wire harness extending over the moveable connection section is made to be planar by the harness protector that is anchored to the structure in the vicinity of the wire harness. Therefore, it is possible to easily bend the wire harness with a small bending radius, so that it is possible to save a space of the wiring region of the wire harness and to improve the wiring operability in the vicinity of the moveable connection section. Thus, the wire-harness wiring structure that is appropriate for the wire harness to be arranged over the moveable connection section is obtained. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1A  is a perspective view of a protector body according to a first embodiment of a harness protector of the invention and  FIG. 1B  is a perspective view showing a state where a protector cover is attached to the protector body shown in  FIG. 1A . 
         FIG. 2  is a plan view of the protector body shown in  FIG. 1 . 
         FIG. 3  is a view shown from an arrow D direction of  FIG. 2 . 
         FIG. 4  is a view shown from an arrow E direction of  FIG. 3 . 
         FIG. 5A  is a perspective view showing a state where the protector body of the first embodiment is attached to a wire harness,  FIG. 5B  is an enlarged view of  FIG. 5A  and  FIG. 5C  is a side view of the harness protector of the first embodiment that is attached to the wire harness. 
         FIG. 6A  is a perspective view of a wire-harness wiring structure in which a wire harness to be arranged over a moveable connection section of a reclining seat of a vehicle is anchored to a seatback structure (a second structure) by the harness protector of the first embodiment and  FIG. 6B  is a perspective view showing a state where a plurality of wires configuring the wire harness is exposed by removing a flexible protection tube of the wire harness of  FIG. 6A . 
         FIG. 7A  is a perspective view showing a state where the seatback structure shown in  FIG. 6A  is reclined and  FIG. 7B  is a perspective view showing a state where a plurality of wires configuring the wire harness is exposed by removing a flexible protection tube of the wire harness of  FIG. 7A . 
         FIG. 8A  is a perspective view of a protector body according to a second embodiment of a harness protector of the invention and  FIG. 8B  is a perspective view showing a state where a protector cover is attached to the protector body shown in  FIG. 8A . 
         FIG. 9  is a perspective view of a band clamp for wire harness according to the prior art. 
         FIG. 10  is a perspective view showing a state where a wire harness is placed on a placing plate section of the band clamp for wire harness shown in  FIG. 9 . 
         FIG. 11  is a side view showing an operation of winding a tying band section onto a wire harness placed on the placing plate section of the band clamp for wire harness shown in  FIG. 9 . 
         FIG. 12  is a side view showing a state where the tying band section is tightened in the band clamp for wire harness shown in  FIG. 9 . 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     Hereinafter, preferred embodiments of the harness protector of the invention will be specifically described with reference to the drawings. 
     First Embodiment 
       FIGS. 1A to 5C  show a first embodiment of the harness protector of the invention. 
     A harness protector  1  of the first embodiment has a protector body  3 , tying bands  5  (refer to  FIGS. 5A to 5C ) and a protector cover  7 . The protector body  3 , the tying bands  5  and the protector cover  7  are resin-molded. 
     As shown in  FIGS. 1A to 5C , the protector body  3  has a substantially tubular-shaped bottom-plate section  11  onto which a wire harness  9  is placed and a pair of side-plate sections  12 ,  13  that is provided to stand at both sides of the bottom-plate section  11 , and a cross-section shape thereof is a U shape. Also, the protector body  3  has substantially tubular-shaped holding plate sections  15  that are integrally formed rotatably on one side of the bottom-plate section  11 . 
     In this embodiment, the holding plate sections  15  are provided at two positions separated in a longitudinal direction of the wire harness  9 . Also, the holding plate sections  15  are rotatably mounted through thin hinge sections  16  that are formed in the vicinity of a standing base section of one side-plate section  12  positioned at one side of the bottom-plate section  11 . A rotating direction of the holding plate section  15  by the thin hinge section  16  is an arrow X 1  direction of  FIG. 1A . 
     The holding plate sections  15  are rotated toward the bottom-plate section  11  to thus interpose the wire harness  9  between the holding plate sections  15  and the bottom-plate section  11  and to crush the wire harness  9  into an oblate cross section, thereby making the wire harness  9  planar. The state where the wire harness  9  is crushed to have the oblate cross section by the holding plate sections  15  is maintained by the tying bands  5  that are wound onto the protector body  3  so as to tighten the outer peripheries of the holding plate sections  15 . The tying bands  5  will be described below. 
     In this embodiment, as shown in  FIGS. 1A to 2 , each of the holding plate sections  15  with which the wire harness  9  is brought into contact is provided with a first movement restraint projection  51  that breaks into a contacting surface of the wire harness  9  to thus restrain axial movement of the wire harness  9 . In this embodiment, the first movement restraint projection  51  is a rib that extends in a direction orthogonal to the axial direction of the wire harness  9 . However, the first movement restraint projection may consist of a plurality of conical projections. 
     Also, in this embodiment, the bottom-plate section  11  is provided thereon with second movement restraint projections  53  that break into the contacting surface of the wire harness  9  to thus restrain the axial movement of the wire harness  9 . The second movement restraint projections  53  are ribs that extend in the direction orthogonal to the axial direction of the wire harness  9  and are provided in four rows at an interval in the axial direction of the wire harness  9 . 
     In this embodiment, the holding plate section  15  and the bottom-plate section  11  are formed with band insertion-penetration holes  17  for inserting the tying bands  5 . 
     Also, in this embodiment, as shown in  FIGS. 1A to 2 , one end of the bottom-plate section  11  in the longitudinal direction is provided with a first extension section  11   a  that extends along an insertion-penetration direction (an arrow Y 1  direction in  FIG. 2 ) of a mainline of the wire harness  9  and a second extension section  11   b  and a third extension section  11   c  that extend in both-side directions of the first extension section  11   a  so as to be orthogonal to the insertion-penetration direction of the mainline of the wire harness  9 . 
     The respective extension sections  11   a ,  11   b ,  11   c  are parts for supporting branched harnesses  9   a ,  9   b  (refer to  FIGS. 5A to 5C ) of the wire harness  9 . The respective extension sections  11   a ,  11   b ,  11   c  are also formed at one sides thereof with band insertion-penetration holes  17 . The band insertion-penetration holes  17  formed at one sides of the respective extension sections  11   a ,  11   b ,  11   c  are provided to tie and anchor the branched harnesses, which are branched on the respective extension sections  11   a ,  11   b ,  11   c , to the respective extension sections  11   a ,  11   b ,  11   c  by the tying bands  5 , as shown in  FIGS. 5A and 5B . 
     In this embodiment, the side-plate section  12  standing from one side of the bottom-plate section  11  is provided to continue over a substantially whole length of the bottom-plate section  11  in the longitudinal direction (an arrow Y 1  direction in  FIG. 2 ), as shown in  FIG. 1 . However, the side-plate section  13  standing from the other side of the bottom-plate section  11  is intermittently provided along the longitudinal direction of the bottom-plate section  11 . That is, as shown in  FIGS. 1A and 1B , the other side of the bottom-plate section  11  is formed with side-plate deficiency sections  18  in which the side-plate section  13  does not exist. The side-plate deficiency sections  18  are used as window sections through which the branched wires of the accommodated wire harness  9  are pulled out. 
     Also, in this embodiment, the protector body  3  has cover latching sections  19  that are provided at both outer sides of the bottom-plate section  11  and are provided to detachably latch the protector cover  7 . 
     Also, as shown in  FIGS. 3 and 4 , clip sections  21  protrude from an outer surface of the bottom-plate section  11  of the protector body  3 . The clip section  21  is a member serving as the anchoring section that is fitted into an attaching hole of a structure on a wiring path of the wire harness  9  and thus connects the protector body  3  to the structure, and may have the same configuration as the dip section  141  shown in  FIG. 11 . 
     The tying bands  5  shown in  FIGS. 5A and 5B  are separately provided from the protector body  3  or protector cover  7 . The tying band  5  has a band body  31  that can be inserted into the band insertion-penetration hole  17  of the protector body  3  and a band latching section  33  that is integrally formed with one end of the band body  31 . 
     One surface of the band body  31  is formed with a plurality of engaging recesses at a predetermined interval in the longitudinal direction of the band body  31 . Also, the band latching section  33  has an insertion-penetration hole into which the band body  31  is inserted and a latching claw that is provided in the vicinity of the insertion-penetration hole and is engaged with the engaging recess on the band body  31  to thus latch movement of the inserted band body  31  in a return direction. 
     As shown in  FIGS. 5A and 5B , the tying bands  5  tighten the outer periphery of the protector body  3  to thus anchor the holding plate sections  15  to the bottom-plate section  11  at a state where the tying bands are inserted into the band insertion-penetration holes  17  provided to correspond to the provision positions of the holding plate sections  15  and the holding plate sections  15  crush the wire harness  9  into the oblate cross section. 
     As shown in  FIG. 1B , the protector cover  7  has a cover body  61  that covers an opening section of the protector body  3  and elastic latching pieces  63  that extend from the cover body  61  and can be engaged with the cover latching sections  19  of the protector body  3 . The protector cover  7  is detachably engaged with the protector body  3  and covers the opening section of the protector body  3  to thus protect the wire harness  9  accommodated in the harness protector  1 . 
     As shown in  FIGS. 5A to 7B , the wire harness  9  has a configuration where a plurality of wires  65  are accommodated in a net-shaped protection tube  66 . 
     According to the harness protector  1  of the first embodiment as described above, the wire harness  9  is first inserted into the protector body  3  with the protector cover  7  being detached. Subsequently, as shown in  FIGS. 5B and 5C , the respective holding plate sections  15  are put on the wire harness  9  accommodated in the protector body  3 . Then, the holding plate sections  15  are pushed toward the bottom-plate section  11  to thus crush the wire harness  9  into the oblate cross section. Then, the respective holding plate sections  15  are anchored by the tying bands  5 . After the anchoring of the respective holding plate sections  15  by the tying bands  5  is completed, when the protector cover  7  is mounted to the protector body  3 , as shown in  FIG. 5C , the mounting of the harness protector  1  to the wire harness  9  is completed. 
     When the harness protector  1  attached to the wire harness  9  is anchored to a structure such as vehicle body through the clip sections  21  integrally provided on the outer surface of the protector body  3 , the anchoring of the wire harness  9  to the structure is completed. 
     According to the harness protector  1  of the first embodiment as described above, since the wire harness  9  to be maintained is anchored with being interposed and crushed between the substantially tubular-shaped bottom-plate section  11  and the holding plate sections  15 , it is possible to easily form the wire harness  9  into the planar shape (with an oblate cross section) and to maintain the same in that state. In the vicinity of the anchored part by the harness protector  1 , as the wire harness  9  is made to be planar, it is possible to easily bend the wire harness  9  with a small bending radius. Therefore, it is possible to improve the wiring operability of the wire harness  9  and to save the space of the wiring region. 
     Also, according to the harness protector  1  of the first embodiment as described above, the protector body  3  has a U-shaped cross section by the bottom-plate section  11  and the pair of side-plate sections  12 ,  13  at both sides of the bottom-plate section  11 . When the wire harness  9  is placed on the bottom-plate section  11 , the pair of the side-plate sections  12 ,  13  at both sides of the bottom-plate section  11  restrains the movement of the wire harness in a width direction. Therefore, it is possible to easily anchor the wire harness  9  to the harness protector  1 , thereby improving the wiring operability. 
     Also, according to the harness protector  1  of the first embodiment as described above, the protector cover  7  that covers the opening section of the protector body  3  is provided. Therefore, it is possible to suppress the wire harness  9  from being exposed on the harness protector  1 , thereby improving the protective effect on the wire harness  9 . 
     Also, according to the harness protector  1  of the first embodiment as described above, at the state where the wire harness  9  is held by the holding plate sections  15  and the bottom-plate section  11 , the first movement restraint projections  51  provided to the holding plate sections  15  and the second movement restraint projections  53  provided to the bottom-plate section  11  break into the surface of the wire harness  9 , thereby restraining the axial movement of the wire harness  9 . 
     Therefore, compared to the conventional band clamp in which the surface contacting the wire harness  9  is planar, it is possible to anchor the wire harness  9  more firmly. Hence, the invention can be also appropriately applied to anchor the wire harness  9  at a place where the axial load is applied to the wire harness  9 . 
     In the below, a wire-harness wiring structure using the harness protector  1  of the first embodiment is described. 
       FIGS. 6A to 7B  show a state where the harness protector  1  is used to anchor the wire harness  9  on a structure of a vehicle. 
     In  FIGS. 6A to 7B , a reference numeral  83  indicates a seatback structure serving as a first structure configuring a reclining seat of a vehicle, a reference numeral  84  indicates a seat structure serving as a second structure configuring the reclining seat and a reference numeral  81  indicates a connection shaft serving as a moveable connection section that rotatably connects a lower end side of the seatback structure  83  to a rear end portion of the seat structure  84 . 
     In  FIGS. 6A to 7B , the wire harness  9  is arranged between the seatback structure  83  and the seat structure  84 , which are the two structures, over the connection shaft  81  that is the moveable connection section. The harness protector  1  of the first embodiment mounted to the wire harness  9  is used as a means for anchoring the wire harness  9  to the seatback structure  83  that is the first structure in the vicinity of the connection shaft  81 . 
     In the meantime,  FIGS. 7A and 7B  show a state (a state where the seatback structure is rotated in an arrow Z 1  direction of  FIGS. 7A and 7B ) where the seatback structure  83  is inclined rearward from the state shown in  FIGS. 6A and 6B . 
     In the wire-harness wiring structure shown in  FIGS. 6A to 7B , the wire harness  9  extending over the connection shaft  81  that is the moveable connection section is made to be planar by the harness protector  1  that is anchored to the seatback structure  83  in the vicinity of the wire harness. Therefore, it is possible to easily bend the wire harness with a small bending radius, so that it is possible to save a space of the wiring region of the wire harness  9  and to improve the wiring operability in the vicinity of the connection shaft  81 . Thus, the wire-harness wiring structure that is appropriate for the wire harness  9  to be arranged over the connection shaft  81  is obtained. 
     Second Embodiment 
       FIGS. 8A and 8B  show a second embodiment of the harness protector of the invention. 
     A harness protector  1 A of the second embodiment is improvements on a part of the harness protector  1  of the first embodiment. The main improvements are as follows. A width of the bottom-plate section  11  of the protector body  3  is widened so as to maintain the wire harness  9  as a wider planar cable. Also, as the width of the bottom-plate section  11  is widened, a length of the holding plate section  15  integrally formed with the protector body  3  is increased. Also, the respective extension sections  11   b ,  11   c  provided at one end of the bottom-plate section  11  have a trough shape capable of stably holding the branched harnesses. The lengths of the respective extension sections  11   a ,  11   b ,  11   c  are also increased, compared to the first embodiment. Also, each of the extension sections  11   a ,  11   b ,  11   c  is provided at an end portion with a protruding step  11   d  for retaining. The steps  11   d  are provided to prevent the tying bands  5  wound onto the outer peripheries of the respective extension sections  11   a ,  11   b ,  11   c  from getting removed. As the steps  11   d  are provided, the respective extension sections  11   a ,  11   b ,  11   c  are not formed with the band insertion-penetration holes  17 . 
     Meanwhile, in the harness protector  1 A of the second embodiment, the configurations common or equivalent to those of the first embodiment are indicated with the reference numerals common to the harness protector  1  of the first embodiment and the descriptions thereof are omitted. 
     In the harness protector  1 A of the second embodiment, the width is set to be wider than the harness protector  1  of the first embodiment. Thus, it is possible to form and maintain the wire harness  9  having a larger diameter into a more planar shape. 
     Also, as the extending lengths of the respective extension sections  11   a ,  11   b ,  11   c  are increased, the branched harnesses are stably anchored to the respective extension sections  11   a ,  11   b ,  11   c.    
     Also, the respective extension sections  11   a ,  11   b ,  11   c  are not formed with the band insertion-penetration holes  17 . Hence, it is possible to simplify the structure of the respective extension sections  11   a ,  11   b ,  11   c.    
     In the meantime, although the harness protector of the invention has been described with reference to the specific embodiments, the invention is not limited to the above embodiments and appropriate modifications and improvements can be made. Also, the materials, shapes, sizes, forms, the number, the arranging places and the like of the respective constitutional elements of the harness protector of the invention are arbitrary insomuch as the object of the invention can be achieved, and are not limited to the above embodiments. 
     For example, in the above embodiments, the movement restraint projections for restraining the axial movement of the wire harness are provided to both the holing plate sections and the bottom-plate section. However, when the axial load that is applied to the wire harness to be maintained is not high so much, the movement restraint projections may be provided to only one of the holing plate sections and the bottom-plate section. 
     This application is based on Japanese Patent Application No. 2010-165249 filed on Jul. 22, 2010, the disclosures of which are incorporated herein by reference. 
     INDUSTRIAL APPLICABILITY 
     According to the harness protector of the invention, since the wire harness to be maintained is crushed with being interposed between the substantially tubular-shaped bottom-plate section and the holding plate sections, it is possible to easily form and maintain the wire harness into the planar shape (with an oblate cross section). Therefore, it is possible to improve the wiring operability of the wire harness and to save the space of the wiring region. 
     REFERENCE SIGNS LIST 
     
         
           1 ,  1 A: harness protector 
           3 : protector body 
           5 : tying band 
           7 : protector cover 
           9 : wire harness 
           11 : bottom-plate section 
           11   a ,  11   b ,  11   c : extension section 
           11   d : step 
           15 : holding plate section 
           16 : thin hinge section 
           17 : band insertion-penetration hole 
           21 : clip section (anchoring section) 
           51 : first movement restraint projection 
           53 : second movement restraint projection