JP6531558B2 - Fixed structure of moving step - Google Patents

Description

  The present invention relates to a fixing structure of a moving step for fixing a moving step for moving to a rear mounting structure to a fender made of resin attached to the lower side of a cab body of a large car. is there.

  In recent years, resin moldings have come to be used for weight reduction etc. for the fender below the entrance door of the cab body side of the cab of a large-sized car, and the moving step attached to the fender is also resin molding Is to be used.

  When attaching the moving step to the fender, form an opening for embedding the moving step in the fender, embed the moving step in the opening, and fix the periphery of the moving step to the fender with bolts etc. In order to allow the operator to get on the surface, the step surface is supported by a metal bracket attached to the cab body.

JP 2004-299574 A Japanese Patent Application Publication No. 2001-301662 Unexamined-Japanese-Patent No. 09-142218 Japanese Utility Model Application Publication No. 59-083645

  However, even if the step surface of the moving step is supported by a metal bracket, the moving step is affected by the moment when it transfers, so the moving step and the fixing portion of the fender have a moment force, and the fender There is a problem of causing

  Therefore, an object of the present invention is to solve the above problems, attach the moving step to the fender, and fix the moving step so that the moving step can be attached without applying a load to the fender even if a load is applied to the moving step. In providing the structure.

  In order to achieve the above object, according to the present invention, a resin fender is attached to a lower portion of a side of a cab body, a resin transfer step is embedded in an opening formed in the fender, and the upper edge of the transfer step is fender In the fixing structure of the moving step for bolting, the fender forms a U-shaped notch in which the bolt can move up and down, a retainer is provided on the back surface of the fender, and a bolt hole is formed in the retainer. A bolt provided in the moving step is inserted into the bolt hole of the retainer through the U-shaped notch, and a nut is screwed into the bolt, and the moving step is fixed by the retainer. It is a fixed structure of the step for movement.

  The moving step includes a step body having a step surface inserted into the opening, and a flange portion formed on the periphery of the step body and joined to the fender surface, and the lower portion of the step body is provided on the cab body Fixed to the support bracket, the bolt is provided at the flange located at the upper part of the opening, and a U-shaped notch whose lower end is opened at the upper end of the opening of the fender is provided at the flange It is preferable that the bolt is inserted into the bolt hole of the retainer through the U-shaped notch, and the bolt and the nut sandwich and fix the fender between the flange portion and the retainer.

  A plurality of the bolts are provided at intervals along the flange portion located at the upper portion of the opening, and a plurality of U-shaped notches are provided at intervals on the fender on the opening, and the retainer is the opening Preferably, a plurality of bolt holes are formed along the longitudinal direction of the retainer.

  In the present invention, the movement step can be moved up and down with respect to the fender by bolting the movement step with the retainer with the fender in between, so that no load is applied to the fender even if a load is applied to the movement step. It exerts the excellent effect of being able to prevent damage and destruction.

In the present invention, it is a side view of a cab having a fender and a moving step attached to the cab body. In the present invention, it is a detailed perspective view which attaches a fender and a movement step to a cab body. The fixing structure of the movement step of this invention is shown, (a) is the sectional view on the AA line of FIG. 1, (b) is a principal part assembly perspective view of the fixing structure of the movement step. It is an assembly perspective view which shows the fixation structure of the movement step of this invention.

  Hereinafter, a preferred embodiment of the present invention will be described in detail based on the attached drawings.

  First, the side structure of the cab body 10 will be described with reference to FIG.

  As shown in FIG. 1, a closing 12 is attached to the lower front of the cab body 10, and a lifting step 14 is assembled.

  After the closing 12 and the raising and lowering step 14 are assembled, a resin fender 17 composed of a front fender 15 and a rear fender 16 is attached to a fender bracket 18 provided on the cab body 10, as shown in FIG.

  Before attaching the fender 17 to the cab body 10, the moving step 20 is attached to the rear fender 16 of the fender 17.

  The fixing structure of this moving step will be described with reference to FIGS.

  The rear fender 16 is formed with an opening 23 for embedding the moving step 20.

  The moving step 20 comprises a step body 25 having a step surface 24 fitted in the opening 23 and a flange portion 26 formed around the step body 25 and abutting on the surface of the rear fender 16 around the opening 23.

  As shown in FIG. 3A, the rear fender 16 is formed in a shape that bulges outward from the upper side to the lower side so that the lower edge is located on the outer side in the vehicle width direction with respect to the upper edge of the opening 23. When 20 is embedded in the opening 23, an open space above the step surface 24 is formed.

  A bolt 27 is supported by a bolt support member 28 at an upper portion of the flange portion 26 so that a head portion of the bolt 27 is supported and a screw portion of the bolt 27 is erected from the back surface of the flange portion 26.

  The rear fender 16 at the upper edge of the opening 23 is formed with a U-shaped notch 30 through which a bolt 27 can be inserted and in which the bolt 27 can move up and down. In the rear fender 16 in which the U-shaped notch 30 is formed, a recess 31 in which the bolt support member 28 is fitted is formed, and a U-shaped notch 30 opened downward is formed in the recess 31.

  The rear surface of the rear fender 16 is provided with an elongated retainer 32 extending along the upper edge of the opening 23. The retainer 32 is formed with a box member 35 accommodating the recess 31 on the back surface of the rear fender 16, and a bolt hole 36 for inserting the bolt 27 is formed in the box member 35.

  A plurality of (three in the drawing) bolts 27 formed by the bolt support members 28 are provided at intervals along the upper portion of the flange portion 26 of the moving step 20 and a U-shaped cut formed on the upper edge of the rear fender 16 A plurality of recesses 31 having the notches 30 are also formed along the upper edge of the opening 23 of the rear fender 16.

  The retainer 32 has a plurality of spaced apart box members 35 having bolt holes 36 for receiving the recesses 31 in a holding plate 34 which is elongated and formed to extend along the upper edge of the opening 23 of the rear fender 16. .

  In the attachment of the rear fender 16 to the opening 23 of the moving step 20, as shown in FIG. 3 (b) and FIG. 4, the bolt 27 is supported by the bolt support member 28 on the flange portion 26 of the moving step 20 In the state, the step body 25 is embedded in the opening 23. At this time, notches 38, 38 are formed on both lower edges of the opening 23 of the rear fender 16, and engaging pieces 39 are formed in the lower portion of the step surface 24 of the step body 25 to engage with the notches 38, By fitting the engagement piece 39 into the notch 38, the embedded position of the transfer step 20 can be aligned.

  By this embedding, the bolt support member 28 is fitted into the recess 31 of the rear fender 16, and the bolt 27 is projected from the U-shaped notch 30 of the recess 31. In this state, by placing the retainer 32 on the rear surface of the rear fender 16, the recess 31 of the rear fender 16 is accommodated in the box member 35 and the bolt 27 protrudes from the bolt hole 36 of the box member 35. By screwing the nut 37 into the bolt 27, the moving step 20 is held so as to sandwich the rear fender 16 between the retainers 32.

  Next, as shown in FIG. 2, the rear fender 16 and the front fender 15 are joined by bolts or the like, and the fender 17 is attached to the lower edge of the cab body 10 and the fender bracket 18 provided on the cab body 10.

  At this time, the clip 41 is held by the clip support 40 on the rear fender 16 (the same as the front fender 15), and the fender 17 is inserted into the lower edge of the cab body 10 by inserting it into the grommet (not shown). It is fixed to the lower edge of 10.

  As shown in FIG. 2, an L-shaped support bracket 45 for supporting the step surface 24 of the moving step 20 is provided at the lower part of the cab body 10, and the step bracket 24 of the step main body 25 is provided on the support bracket 45. Is supported by the bolt 46 and the nut 47.

  Below the step surface 24, a reinforcing rib 48 that is seated on the support bracket 45 is formed, and a nut receiving portion 49 for attaching a nut 47 is formed. The nut 47 is fitted into the nut housing 49 as shown in FIG. 4, and after the fender 17 is attached to the cab body 10, the bolt 46 is screwed into the nut 47 from below the support bracket 45 and is moved to the support bracket 45 The step surface 24 of step 20 is fixed.

  Next, the operation of the present embodiment will be described.

  When moving from the cab side to the bodywork via the moving step 20 provided on the fender 17, a load is applied to the moving step 20, but the load is supported by the support bracket 45 below the step surface 24. Ru. Under the present circumstances, although the flange part 26 of the step 20 for movement is connected by the retainer 32, the bolt 27, and the nut 37 on both sides of the rear fender 16, U-shaped cutting which can move the bolt 27 up and down to the rear fender 16 Since the notch 30 is formed, the load can not be applied to the rear fender 16 and the support bracket 45 can directly receive the load.

  In addition, when a load is applied to the moving step 20, a moment is generated in the flange portion 26 at the top of the moving step 20 so as to be away from the surface of the rear fender 16.

  At this time, the flange portion 26 at the upper portion of the moving step 20 is connected to the retainer 32 and the bolt and nut 27, 37 with the rear fender 16 interposed therebetween, and the moment force applied to the flange portion 26 is via the retainer 32. Since the force is applied to the entire rear fender 16, the force can be dispersedly received as compared with the case where the rear fender 16 and the flange portion are directly supported by bolts and nuts, and deformation and damage of the rear fender 16 can be prevented.

Reference Signs List 10 cab body 17 fender 20 moving step 23 opening 27 bolt 30 U-notch 32 retainer 36 bolt hole 37 nut

Claims (3)

  Attach a resin fender to the lower part of the cab body, embed a resin transfer step in the opening formed in the fender, and fix the transfer step to bolt the upper edge of the transfer step to the fender In the structure, the fender is provided with a U-shaped notch in which the bolt can move up and down, a retainer is provided on the back surface of the fender, a bolt hole is formed in the retainer, and the bolt provided in the moving step is A fixing structure for a moving step, which is inserted into a bolt hole of the retainer through a notch, and a nut is screwed into the bolt to fix the moving step by the retainer.   The moving step includes a step body having a step surface inserted into the opening, and a flange portion formed on the periphery of the step body and joined to the fender surface, and the lower portion of the step body is provided on the cab body Is fixed to the support bracket, the bolt is provided at the flange located at the upper part of the opening, a U-shaped notch whose lower end is opened at the upper end of the opening of the fender, and the bolt is provided at the flange 2. The moving step fixing structure according to claim 1, wherein the U-shaped notch is inserted into the bolt hole of the retainer, and the bolt and the nut sandwich and fix the fender with the flange portion and the retainer.   A plurality of the bolts are provided at intervals along the flange portion located at the upper portion of the opening, and a plurality of U-shaped notches are provided at intervals on the fender on the opening, and the retainer is the opening 3. The fixed structure according to claim 2, wherein the plurality of bolt holes are formed elongated along the longitudinal direction of the retainer.

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