JPH0517212U - Fixed structure of hollow rod - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve workability when assembling a hollow rod-shaped member to a support member. A hollow bar-shaped member is provided with a slit 8 through which a body portion of a bolt 6 for fixing the hollow bar-shaped member 3 is movably pierced in a longitudinal direction 14 on a surface 4 of the hollow bar-shaped member 3. A cover member 11 that covers the slit 8 and forms a bolt head housing space 10 in which the head of the bolt 6 can be loosely fitted is provided in the inside of the housing 3, and extends in the inner longitudinal direction 14, A positioning member 15 is provided which can be inserted and through which the body of the bolt 6 can be inserted to fix the head, and a positioning mechanism 33 which can position the positioning member 15 on the hollow rod member 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure for fixing a hollow rod-shaped member.

[0002]

[Prior Art]

 Generally, a bumper is attached to the rear part of a truck or the like, but in recent years, in order to reduce the weight of the vehicle body of the truck or the like, a hollow rod-shaped member such as an aluminum alloy is used as the bumper member instead of the plate-shaped member made of steel. Is becoming.

FIG. 11 shows a state in which a bumper member consisting of a hollow rod-shaped member 3 is attached to the rear portion of the truck 1 via a stay 2, and the hollow rod-shaped member 3 is, as shown in FIGS. 12 and 13, A slit 8 having a rectangular cross section and extending in a vehicle body width direction 5 on a surface 4 of the truck 1 or the like facing the front of the vehicle body and having an interval slightly wider than a diameter dimension of a body portion 7 of a bolt 6 for attaching to a stay 2. In addition, a cover member 11 for forming a bolt head housing space 10 that surrounds the slit 8 and can house the head 9 of the bolt 6 in a loosely fitted state is provided inside the hollow rod-shaped member 3. It extends integrally in the vehicle body width direction 5.

In the figure, reference numeral 12 is a male screw portion screwed over substantially the entire outer surface of the body portion 7 of the bolt 6, and 13 is a nut screwed to the male screw portion 12.

When the hollow rod-shaped member 3 is fixed to the stay 2 projecting from the rear portion of the track 1, the slit 8 is inserted into the bolt head accommodation space 10 at both ends of the hollow rod-shaped member 3 from the slit 8. With the portion 7 protruding, the head portion 9 of the bolt 6 is loosely fitted, and the bolt 6 is slid along the slit 8 to position the bolt body portion 7 in a bolt hole (not shown) formed in the stay 2. Then, the hollow rod-shaped member 3 is fixed to the stay 2 by screwing the nut 13 into the male screw portion 12 through the bolt body portion 7 through the bolt hole.

[0006]

However, the conventional fixing structure of the hollow rod-shaped member has the following problems.

That is, since the cover member 11 capable of accommodating the head portion 9 of the bolt 6 in a loosely fitted state is attached inside the hollow rod-shaped member 3, when the hollow rod-shaped member 3 is fixed to the stay 2, the bolt 6 The position could not be determined by freely sliding or rotating along the slit 8, so the workability during assembly was poor.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a hollow rod-shaped member fixing portion structure capable of improving workability when the hollow rod-shaped member is assembled to a support member. ..

[0009]

[Means for Solving the Problems]

 In the invention of claim 1, a hollow rod-shaped member has a support member side surface provided with a slit movably pierceable through a body of a bolt for fixing the hollow rod-shaped member in the longitudinal direction, thereby forming a hollow rod-shaped member. A bolt head capable of loosely fitting the head of the bolt by covering the slit inside the member. A cover member that forms an accommodation space is extended in the inner longitudinal direction and is insertable into the bolt head accommodation space. A structure for fixing a hollow rod-shaped member, characterized in that a positioning member capable of fixing the head through the body of the bolt is provided, and a positioning mechanism for positioning the positioning member on the hollow rod-shaped member is provided. Is.

According to a second aspect of the invention, the fixing member structure for a hollow rod-shaped member according to claim 1, wherein the positioning member has a strip shape, and the positioning member has the same length dimension as the hollow rod-shaped member as a positioning mechanism. It depends on.

According to a third aspect of the present invention, the positioning member has a hat having both end portions capable of abutting on the surface of the hollow rod-shaped member on which the slit is formed and a central portion capable of abutting on the surface on the side opposite to the slit of the covering member. The hollow rod-shaped member fixing portion structure according to claim 1, wherein the positioning mechanism is a positioning hole formed in the central portion of the positioning member and the surface on the anti-slit side of the cover member.

According to a fourth aspect of the present invention, the positioning member has both ends that can come into contact with the slit-formed surface of the hollow rod-shaped member and a central portion that can come into contact with the surface on the side opposite to the slit of the covering member. And the positioning mechanism has a fitting hole capable of fitting and locking the protrusion formed on both ends of the positioning member and the protrusion formed on the slit-formed surface of the hollow rod-shaped member, 2. The hollow rod-shaped member according to claim 1, which is a fitting hole capable of fitting and locking the protrusion formed in the central portion of the positioning member and the protrusion formed on the surface of the cover member on the side opposite to the slit. It is related to the structure of the fixed part.

According to a fifth aspect of the present invention, there is provided a hollow rod-shaped member according to any one of claims 1 to 4, wherein an electrolytic corrosion preventing coating is provided on at least portions of the support member, the positioning member, and the bolt, which are in contact with the hollow rod-shaped member. It relates to the fixed part structure.

[0014]

[Action]

 According to the invention of claim 1, when the positioning member having the head fixed by inserting the body of the bolt is inserted into the bolt head accommodation space and positioned by the positioning mechanism, the position of the bolt becomes stable. Therefore, workability in assembling the hollow rod-shaped member to the support member is improved.

According to the second aspect of the invention, the positioning member is in the form of a strip and has the same length dimension as the hollow rod-shaped member.

In the invention of claim 3, the positioning member is formed in a hat shape, and the positioning hole is formed in the central portion of the positioning member and the surface on the side opposite to the slit of the covering member.

According to the fourth aspect of the present invention, the positioning member is formed in a hat shape, and the projections are formed at both ends of the positioning member, and the projections can be fitted and locked on the surfaces of the hollow rod-shaped member on which the slits are formed. Or a protrusion is formed in the central portion of the positioning member, and a protrusion is formed on the surface of the cover member on the side opposite to the slit so that the protrusion can be fitted and locked. ing.

According to the fifth aspect of the present invention, the electrolytic corrosion of the portion is prevented by the electrolytic corrosion preventing film provided on the supporting member and the positioning member as well as the portion contacting at least the hollow rod-shaped member of the bolt.

[0019]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a first embodiment of the present invention.

Further, in the figure, the same components as those shown in FIGS. 11 to 13 are designated by the same reference numerals, and the description thereof will be omitted. Hereinafter, only the configuration unique to the present invention will be described. go.

A band-shaped positioning member 15 that has the same length as the length 14 of the hollow rod-shaped member 3 in the longitudinal direction and can be inserted into the bolt head accommodation space 10 is provided, and the stay 2 or the like is provided on the positioning member 15. The bolt hole 16 is formed by aligning it with the bolt hole 40 formed in the support member, and the bolt 6 is passed through the bolt hole 16 by welding, bonding, caulking, or using a fixing auxiliary member (not shown). The head 9 of the bolt 6 is fixed to the positioning member 15 to form the mounting unit 17.

The stay 2, the positioning member 15 and the bolt 6 as well as one or both of the portions of the nut 13 that come into contact with the hollow rod-shaped member 3 are coated with an electrolytic corrosion preventive film 41, 42, 43, 44 such as nylon coat. To provide.

Reference numeral 18 denotes a fixing portion between the positioning member 15 and the head portion 9 of the bolt 6, and the positioning member 15 has the same length dimension as the dimension of the hollow rod member 3 in the longitudinal direction 14. The mechanism 33 is configured.

Next, the operation will be described.

The positioning member 15 to which the head 9 of the bolt 6 is fixed is placed inside the bolt head housing space 10 of the hollow rod-shaped member 3 with the body portion 7 of the bolt 6 protruding from the slit 8 to the outside. insert.

Then, since the positioning member 15 has the same length dimension as the dimension of the hollow rod-shaped member 3 in the longitudinal direction 14, the position of the body portion 7 of the bolt 6 in the longitudinal direction 14 is set as previously set. The bolts 6 are held so as not to rotate because they coincide with the positions of the bolt holes 40 formed in the support member such as the stay 2 and the head 9 of the bolt 6 is fixed to the positioning member 15.

In this state, if the nut 13 is screwed into the male threaded portion 12 of the bolt body 7 by passing the bolt body 7 through the bolt hole 40 formed in the support member such as the stay 2, the hollow rod-shaped member 3 can be easily attached. It can be fixed to a support member such as the stay 2.

Further, the electrolytic corrosion prevention coatings 41, 42, 43, 44 provided on one or both of the portions of the stay 2, the positioning member 15, the bolts 6, and the nuts 13 that come into contact with the hollow rod-shaped member 3 are used to prevent the electric charge of the portions. Eating (contact corrosion) is prevented.

4 to 7 show a second embodiment of the present invention.

The strip-shaped strip 19 has both ends 20 parallel to the surface of the hollow rod-shaped member 3 on which the slit 8 is formed and a central portion 22 parallel to the surface 21 of the cover member 11 facing the slit 8. As shown in FIG. 5, the hollow rod-shaped member 3 is provided with a positioning member 23 that can be inserted into the bolt head housing space 10 and the bolts 6 are inserted into both ends 20 of the positioning member 23 in the same manner as in the above embodiment. The fixing unit 23 is fixed, and a positioning hole 24 is provided in the central portion 22 of the positioning member 23 to form a mounting unit 28. The bolt 6 is attached to the surface 21 of the hollow rod-shaped member 3 facing the slit 8 of the cover member 11 such as the stay 2. A positioning hole 25 corresponding to the positioning hole 24 is provided so as to be positioned in the bolt hole 40 formed in the supporting member of the support member, and the positioning mechanism 34 is provided by the positioning holes 24, 25. The positioning member 23 is inserted into the bolt head housing space 10, and the positioning hole 24 of the positioning member 23 and the positioning hole 25 of the cover member 11 are aligned to form a resin pin (not shown). ) Or a fixing member 26 such as a cracked pin shown in FIG. 6 or a fixing member 32 such as a resin hollow clip shown in FIG. 7 so as to crush the tip. It has the same configuration as the above and can obtain the same operation and effect.

Reference numeral 27 is a notch formed in the slit 8 as needed so that a tool (not shown) for driving the fixing members 26, 32 and the like into and out can be inserted from the slit 8 side.

8 to 10 show a third embodiment of the present invention, in which the hat-shaped positioning member 29 is made of spring steel, and the slits 8 are formed around the bolt holes 16 at both ends 20 of the positioning member 29. The protrusion 30 protruding toward the side is formed by press working, and the slit 8 is formed with a fitting hole 31 into which the protrusion 30 can be fitted and locked, and the positioning mechanism 35 is formed by the protrusion 30 and the fitting hole 31. When the positioning member 29 is inserted into the bolt head housing space 10, the protrusion 30 of the positioning member 29 is fitted and locked in the fitting hole 31 formed in the slit 8. The second embodiment has the same structure as that of the second embodiment and can obtain the same operation and effect.

It should be noted that the present invention is not limited to the above-described embodiment, but can be used in other than a truck bumper, and for example, the fixing member in the second embodiment is optional. Yes, rivets may be used especially when electrolytic corrosion prevention is not taken into consideration. In the third embodiment, the bending angle of each part of the positioning member is set to be larger or smaller than 90 degrees and the positioning member is smaller than 90 degrees. May be more easily elastically deformed, and since the amount of deformation of the positioning member is small, a material other than spring steel may be used. Furthermore, as shown in FIGS. May be provided in the center of the positioning member to form the fitting hole 37 corresponding to the protrusion 36 on the surface of the cover member opposite to the slit side, and the electrolytic corrosion preventing film may be other than nylon coat. Key to the invention It goes without saying that various changes can be made without departing from the spirit of the invention.

[0035]

[Effect of the device]

 As described above, according to the fixing structure of the hollow rod-shaped member according to the inventions of claims 1 to 4, workability at the time of assembling the hollow rod-shaped member to the support member can be improved. Further, according to the structure of the fixing portion of the hollow rod-shaped member according to the invention of claim 5, there is an excellent effect that the electrolytic corrosion can be prevented.

[Brief description of drawings]

FIG. 1 is a partially enlarged perspective view of a first embodiment of the present invention.

FIG. 2 is a partially enlarged perspective view of the positioning member of FIG.

FIG. 3 is a view seen from a III-III direction with FIG. 1 assembled.

FIG. 4 is a partially enlarged perspective view of a second embodiment of the present invention.

5 is a view of FIG. 4 in an assembled state, viewed from the VV direction.

FIG. 6 is a side view showing another example of a fixing member usable in FIG.

7 is a side sectional view showing another example of the fixing member usable in FIG.

FIG. 8 is a partially enlarged perspective view of a third embodiment of the present invention.

9 is a partially enlarged perspective view of the positioning member of FIG.

10 is a cross-sectional view of the hollow rod-shaped member of FIG. 8 with a positioning member and the like assembled therein, as seen from the XX direction of FIG. 9;

FIG. 11 is a schematic side view of a truck.

FIG. 12 is a partially enlarged perspective view of a conventional example.

FIG. 13 is a perspective view showing a state of attachment to the stay of FIG.

[Explanation of symbols]

 2 Support Member (Stay) 3 Hollow Rod Member 4 Surface of Support Member 2 Side 6 Bolt 7 Body 8 Slit 9 Head 10 Bolt Head Housing Space 11 Cover Member 13 Nut 14 Longitudinal Direction 15, 23, 29 Positioning Member 20 Both Ends Part 21 Surface of anti-slit 8 side of cover member 22 Central part 24,25 Positioning hole 30 Projection part 31 Fitting hole 33,34,35 Positioning mechanism 41,42,43,44 Electrolytic corrosion prevention film

Claims (5)

[Scope of utility model registration request] 1. A hollow rod-shaped member has a support member side surface provided with a slit through which a body of a bolt for fixing to the support member is movably pierced in a longitudinal direction thereof, and the slit is provided inside the hollow rod-shaped member. A cover member that covers the slit and forms a bolt head housing space in which the head of the bolt can be loosely fitted is extended in the inner longitudinal direction, and can be inserted into the bolt head housing space and the body of the bolt can be inserted. A hollow rod-shaped member fixing part structure, comprising a positioning member capable of inserting and fixing a head portion, and a positioning mechanism capable of positioning the positioning member on the hollow rod-shaped member. 2. The fixing portion structure for a hollow rod-shaped member according to claim 1, wherein the positioning member has a strip shape, and the positioning member has the same length dimension as the hollow rod-shaped member as a positioning mechanism. 3. The positioning member has a hat shape having both end portions capable of contacting the slit-formed surface of the hollow rod-shaped member and a central portion capable of contacting the non-slit side surface of the cover member, and the positioning is performed. 2. The fixing structure for a hollow rod-shaped member according to claim 1, wherein the mechanism is a positioning hole formed in the central portion of the positioning member and the surface of the cover member on the side opposite to the slit. 4. The positioning member has a hat shape having both end portions capable of contacting the slit-formed surface of the hollow rod-shaped member and a central portion capable of contacting the non-slit side surface of the cover member, and the positioning is performed. The mechanism is a fitting hole capable of fitting and locking the protrusion formed on the both ends of the positioning member and the protrusion formed on the surface of the hollow rod-shaped member on which the slit is formed, or the positioning member described above. 2. The fixing part structure for a hollow rod-shaped member according to claim 1, wherein the fixing part structure is a fitting hole capable of fitting and locking the protrusion formed in the central portion and the protrusion formed on the surface of the cover member on the side opposite to the slit. 5. A structure for fixing a hollow rod-shaped member according to claim 1, wherein an electrolytic corrosion preventing coating is provided on at least portions of the support member, the positioning member, and the bolt, which are in contact with the hollow rod-shaped member.