JP3068796U - Mounting device for tubular bodies - Google Patents

Abstract

(57) [Summary] [PROBLEMS] The present invention relates to a device for attaching tubular bodies to each other, and quickly and securely attaches a support tube and a support using a connecting bolt to form a double tube structure, and furthermore, a lightweight material such as aluminum. The support can be securely attached to the support tube without deforming the outer tube made of metal due to the tightening force of the nut. Inserted radially R _1, R ₂ while regulating the idling of A coupling bolt head 3a of the coupling bolt 3 is fitted to the outer tube member head accommodating hole 1a ₁ which is provided on the outside of the bolt The inner tube is attached to the outer tube by screwing the nut 4 to the connecting bolt.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a mounting device for tubular bodies, and more particularly to a support for posting a line-of-sight guide mark, a distance mark, a regulation mark such as a parking prohibition mark or a stop mark, and a support pipe for supporting the support mark, which is installed along a road. The inner tube is quickly and securely attached to the pipe-shaped outer tube under the condition that the connection with the part restricts the idling of the connecting bolt.

[0002]

[Prior art]

Conventionally, for example, a method shown in FIG. 7 is used to attach a support post for carrying a gaze guide mark, a distance mark, and a control mark such as a parking prohibition or a stop mark installed along a road. I was That is, for example, a large-diameter pipe-shaped support pipe a as an outer pipe material formed by adopting aluminum as a lightweight metal by die-casting, and inserted into the outer pipe material and similarly formed by die-casting using aluminum. insert the rivet c to a post b as small diameter pipe-shaped inner tube being, supported with rivets c by forming a fastening portion c ₁ a protrusion protruding to the inside of the strut b crush press It is formed in a double pipe structure in which a pipe a and a support b are attached together. The Na by inserting the coupling bolts d radially R _1, R ₂ of a tower b and the bearing tube a for mounting Keru the bearing tube a pipe-shaped strut b as another mounting method shown in FIG. 8 The pipe e was screwed together to form a double pipe structure.

[0003]

[Problems to be solved by the invention]

However, in the mounting method shown in FIG. 7, after the rivet c is inserted into the large-diameter support pipe a and the small-diameter support b, the leading end of the rivet c protruding inside the support b is crushed, so that the engagement portion is formed. to form the c _1, since it is necessary to perform work mounting at the location of the narrow accommodation area of the strut b, it takes between and labor when many the mounting work of the bearing tube a and the support b, mounting work Was inefficient. The above conventional other attachment method shown in FIG. 8 screwing the nut e is inserted radially into the screw portion d ₁ of the coupling bolts d of the bearing tube a and post b binding bolts d are nuts e the coupling bolts d takes a lot of time and effort in order mounting operation the coupling bolts d when screwed screwed to the screw portion d ₁ is idling of, die-cast with aluminum with inefficient mounting force without exerting clamping force efficacy by screw portion to be screwed into the d ₁ nut e of coupling bolts d nuts e with strong large force enough outer tubing is deformed by tightening force by the nut e Had the disadvantage of being compromised.

[0004] The present invention solves the above-mentioned conventional drawbacks, and it is possible to form a double pipe structure by quickly and securely attaching a support pipe and a support using a connecting bolt without much time and labor. An object of the present invention is to provide an attachment device for a tubular body which can securely attach a support to a support tube without deforming an outer tube made of a lightweight metal such as aluminum by a tightening force of a nut.

[0005]

[Means for Solving the Problems]

 The present invention has been made in view of the above-mentioned problem. Claim 1 of the present invention comprises a pipe-shaped outer pipe, a pipe-shaped inner pipe inserted into the outer pipe, and a connecting bolt. The coupling bolt is inserted into the head receiving hole provided on the outside of the outer tube to restrict idling of the coupling bolt, and the coupling bolt is inserted in the radial direction between the outer tube and the inner tube to insert a nut into the coupling bolt. A means was adopted in which the inner tube was attached to the outer tube by screwing.

According to a second aspect of the present invention, in the first aspect, the head receiving hole provided on the outside of the outer tube is formed in a polygon substantially matching the outer shape of the bolt head of the connecting bolt. We adopted the method of making it a feature.

[0007]

[Embodiment of the invention]

Hereinafter, specific examples of the embodiment of the present invention will be described with reference to the drawings. FIGS. 1 to 3 show an embodiment of the present invention applied to a road sign such as a gaze guide mark, a distance mark, and a regulation mark such as a parking prohibition mark or a stop mark. Reference numeral 1 denotes a bearing pipe made of die-casting using, for example, aluminum as a lightweight metal. The bearing pipe 1 is formed as a pipe-shaped outer pipe material having a large diameter. As in the embodiment, for example, it is buried under the road shoulder. Reference numeral 2 denotes a column which is inserted into the outer tube and is formed into a small-diameter pipe as an inner tube by die-casting using aluminum as a lightweight metal, for example. , Distance markers, and road signs H such as parking prohibition and stop markers. In this embodiment, the support tube 1 or the support column 2 is formed by die-casting using aluminum as a lightweight metal. However, the molding method is not limited to this, and the support tube 1 or the support column 2 may be formed using a synthetic resin plastic. Good. 1a ₁ is polygonal is provided in the outside of the bearing tube 1 as the outer tubing type, for example, a head accommodating hole of hexagon bolt head 3a of later joining bolts 3 in the head accommodating hole 1a ₁ is It is formed into an internal shape that is substantially fitted to the bolt head 3a so as to be fitted. 1a ₂ is a bolt insertion hole provided on opposite sides of the head accommodating hole 1a _1. Reference numerals 2a ₁ and 2a ₂ denote bolt insertion holes formed so that the coupling bolt 3 is inserted into the column 2 so as to match the head receiving hole 1a ₁ .

Reference numeral 3 denotes a connecting bolt. The connecting bolt 3 is inserted in the radial direction R ₁ , R ₂ between the support pipe 1 as the outer pipe and the support 2 as the inner pipe, and a nut 4 is provided at the tip. The column 2 is attached to the support tube 1 by the tightening force between the coupling bolt 3 and the nut 4 by being screwed into the screw portion 3b. In this case, the bolt head 3a of the coupling bolt 3 is threaded portion of the nut 4 to prevent the binding bolt 3 by being fitted in the head housing holes 1a ₁ provided on the outside of the bearing tube 1 is idling The nut 3 is easily and securely screwed to the nut 3b to secure the nut 4. The screwing of the nut 4 to the screw portion 3b can be easily performed by using a tool such as a wrench or pliers.

One embodiment of the present invention has the above-mentioned structure, and a road sign H such as a line-of-sight guide, a distance marker, and various control markers is placed on a large-diameter support pipe 1 as a pipe-shaped outer pipe material. In order to mount the small-diameter support 2 as a pipe-shaped inner pipe material to be included in the section, first, the lower part of the support pipe 1 is buried in the ground at a desired mounting location such as a road shoulder. Next, the lower part of the small-diameter support 2 as a pipe-shaped inner pipe is inserted into the large-diameter support pipe 1 as a pipe-shaped outer pipe. Bearing tube 1 and the support 2 while regulating the idling of the bolt head 3a then by matching with fitted in the head housing holes 1a ₁ digits set outside the supporting tube 1 the bolt head 3a of the coupling bolt 3 After inserting the connecting bolt 3 in the radial direction R ₁ , R ₂ into the bolt insertion hole 1 a ₂ ; 2 a ₁ , 2 a ₂ , the nut 4 is connected to the connecting bolt 3 using a tool such as a spanner or a plier. By screwing into the screw portion 3b provided at the end of the support tube 2, the column 2 can be quickly and efficiently attached to the large-diameter support tube 1 without much time and labor.

[0010] At this time, the bolt head 3a of the coupling bolts 3, polygon whose external shape is substantially matched to the head accommodating hole 1a ₁ provided in the large-diameter bearing tube 1 as the outer tubing, e.g., exemplary illustrated In the example, since it is formed in a hexagonal shape, even when a torque is applied to the coupling bolt 3 when the nut 4 is screwed into the screw portion 3b provided at the tip of the coupling bolt 3, the coupling bolt 3 is reliably prevented from rotating. can do. Moreover, the outer shape and the respective inner shape square head accommodating hole 1a ₁ of the bolt head 3a without bolt head 3a of the coupling bolt 3 is limited to that shown Fig, pentagon, a polygonal shape such as octagon It may be done.

FIGS. 5 and 6 show another embodiment of the present invention. In this embodiment, the bearing pipe 1 is not buried in the shoulder of the road, but the mounting seat plate 20 fixed to the lower end of the bearing pipe 1 is used for a road shoulder, a sidewalk, a tunnel or the like by using a plurality of mounting bolts 21. be those attached to the mounting location eliminates the need for mounting work support tube 1 such houses the bolt head 3a in example and the head accommodating hole 1a ₁ which is provided on the outside of the bearing tube 1 similarly The same as the previous embodiment except that the support bolt 1 is quickly and securely attached to the support tube 1 by preventing the connection bolt 3 from idling when the nut 4 is screwed into the screw portion 3b by matching the nuts. There are various configurations and actions.

[0012]

[Effect of the invention]

 As described above, the present invention comprises a pipe-shaped outer pipe, a pipe-shaped inner pipe inserted into the outer pipe, and a connecting bolt, and a bolt head of the connecting bolt is provided outside the outer pipe. In a state where the coupling bolt is inserted into the head receiving hole and the idling of the coupling bolt is regulated, the coupling bolt is inserted in the radial direction between the outer pipe material and the inner pipe material, and a nut is screwed into the coupling bolt. Since the inner pipe is attached to the outer pipe by handling, it is necessary to form the double pipe structure by quickly and securely attaching the support pipe and the pillar using the connecting bolt without much time and labor. Can be. In addition, the column can be securely attached to the support tube without strongly tightening the outer tube formed of a lightweight metal such as aluminum or a synthetic resin by the tightening force of the nut as in the conventional case.

[Brief description of the drawings]

FIG. 1 is an enlarged front view showing an embodiment of a device for attaching tubular bodies to each other according to the present invention.

FIG. 2 is an enlarged sectional view of the same.

FIG. 3 is an enlarged cross-sectional view of the same.

FIG. 4 is a cross-sectional view generally showing a construction state.

FIG. 5 is an enlarged front view showing another embodiment of the present invention.

FIG. 6 is an enlarged transverse sectional view of the same.

FIG. 7 is a cross-sectional view showing a conventional mounting method for mounting a support on which a regulation mark is posted to a support tube.

FIG. 8 is a sectional view showing another attachment method.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Bearing pipe 1a ₁ Head accommodation hole 1a ₂ Bolt insertion hole 2a ₁ Bolt insertion hole 2a ₂ Bolt insertion hole 2 Post 3 Coupling bolt 3a Bolt head 3b Screw part 4 Nut

Claims (2)

[Utility model registration claims] 1. A large-diameter pipe-shaped outer pipe, a small-diameter pipe-shaped inner pipe inserted into the outer pipe, and a coupling bolt, wherein a bolt head of the coupling bolt is positioned outside the outer pipe. By inserting the coupling bolt in the radial direction between the outer pipe material and the inner pipe material while screwing the coupling bolt into the head receiving hole provided in An attachment device for mutually attaching tubular bodies, wherein an inner tube is attached to an outer tube. 2. The tubular body according to claim 1, wherein the head receiving hole provided outside the outer tube is formed in a polygon substantially matching the outer shape of the bolt head of the coupling bolt. Mutual mounting device.