JPH0523663Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a connecting structure of groove-shaped members for constructing a groove such as a drainage canal or a roadside gutter at a predetermined distance by connecting a plurality of members.

[Conventional technology]

Conventionally, channel-shaped members have been connected using a structure as shown in FIG. That is, the channel member 21
is a groove body that is integrally formed of, for example, concrete or steel, and has a U-shaped cross section and is composed of a bottom plate 21a and left and right side plates 21b, 21b standing upright on both sides of the bottom plate 21a. The left and right side plates 21b of this groove-shaped member 21,
At the ends of 21b, plate-shaped projecting pieces 22, 22 are formed that extend outward at right angles to these, and bolt holes 22a, 22 are formed at predetermined positions of the projecting pieces 22, 22. 22a is open. Then, the groove-shaped material 21 is made continuous so that the overhanging pieces 22 are aligned with each other, and then the bolt holes 22 of the adjacent overhanging pieces 22, 22 are connected to each other on both sides of the groove-shaped material 21.
A bolt 23 is passed through a, 22a and tightened with a nut 24 to fasten the projecting pieces 22, 22, thereby connecting the grooved members 21, 21.

[The problem that the idea attempts to solve]

However, in such a conventional connection structure, the pressing force exerted by the bolt 23 and the nut 24 is as shown by the black arrow in FIG.
is concentrated in a very small portion that comes into contact with the overhang piece 22. When the bolts 23 and nuts 24 are tightened, or when the channel member 21 receives a strong impact, a load that exceeds the allowable amount is likely to be concentrated on this part, and in that case, the overhang piece 22 is easily damaged. I had the problem of being exposed.

In addition, the pressing force from the bolt 23 and nut 24 is applied only in the horizontal direction (hereinafter simply referred to as the horizontal direction) with respect to the connection direction of the groove-shaped members, as shown by the black arrow in the same figure. Fastening in the direction perpendicular to the connection direction (hereinafter also referred to as perpendicular direction) is not sufficient. Therefore, if a force is applied in the same direction as shown by the white arrow in the same figure, the connection will shift due to the play between the shaft of the bolt 23 and the bolt holes 22a, 22a, and this vertical If misalignment occurs repeatedly, the bolt 23 may come into contact with the opening of the bolt hole 22a and damage the overhang piece 22, or the nut 24 may become loose and the grooved members 21,
There was also the problem that 21 contracts could come undone.

Furthermore, when a groove is constructed using the groove-shaped material 21, there is a problem in that the overhang piece 22 protrudes largely outside the left and right side beams 21b, 21b, resulting in an unattractive appearance.

Therefore, this invention was made with attention to such problems, and the purpose of this invention is to prevent the fastening force acting between the connected groove members from being concentrated in one part,
Another object of the present invention is to construct a connecting structure in which the fastening members are fastened not only in the horizontal direction but also in the vertical direction, and which also has a good appearance.

[Means to solve the problem]

This invention consists of a recess that is formed on the side surface of the end of the channel-shaped material and has a pair of inclined surfaces facing each other and approaching each other on the end side to form an H-shape; A connecting structure of groove-shaped materials by means of an auxiliary metal fitting having a pair of pressing surfaces that form a letter shape and are joined to the inclined surfaces of the recessed portions, and a bolt that spans between the auxiliary metal fittings of adjacent groove-shaped materials and draws both auxiliary metal fittings together. The above-mentioned problem has been solved.

[Effect]

A bolt is passed between the auxiliary metal fittings inserted into the recesses of adjacent channel-shaped members, and the bolts are tightened to draw both auxiliary metal fittings together.

At this time, since the pressing surface of the auxiliary fitting joins the inclined surface of the recess and presses this surface toward the end, the pressing force from the bolt is distributed over a wide area and is concentrated in one part. There's nothing to do.

In addition, the pair of pressing surfaces of the auxiliary metal fittings, which are formed in a V-shape close to the end side of the channel-shaped material, wedge-shaped into the pair of inclined surfaces of the concave portion, which also has a V-shape, so that the auxiliary metal fittings is fixed between the inclined surfaces. On this occasion,
The pressing force applied from the pressing surface of the auxiliary fitting is also applied in a direction perpendicular to the inclined surface, that is, diagonally upward and diagonally downward with respect to the end side of the channel-shaped material, so that adjacent channel-shaped materials are It is fastened not only horizontally but also vertically.

In addition, in order to insert the auxiliary metal fitting into the recess,
There are no outwardly protruding parts of the grooved material, resulting in an aesthetically pleasing structure.

〔Example〕

The structure of this invention will be explained with reference to FIG. 1. This figure is a perspective view showing the connection structure of this embodiment.

The channel member 1 is integrally formed from concrete or steel, and includes a bottom plate 1a and side plates 1 erected on both sides of the bottom plate 1a.
It is a groove body formed into a U-shaped cross section by b and lb. Then, the front of the end becomes the opposing surface 1c,
A plurality of groove-shaped members 1 are successively arranged so that the facing surfaces 1c, 1c of adjacent groove-shaped members 1, 1 are aligned, and grooves are constructed at a predetermined distance.

At the end of the groove-shaped member 1, a recess 2 is formed on the outer surface of each side plate 1b. This recess 2 is
It is a trapezoidal depression that tapers toward the end of the groove-shaped material 1, and the side surface on the tapered side is open to the opposing surface 1c, and a pair of side surfaces facing each other and forming a side surface in a V-shape are inclined surfaces 2a. , 2a.

The auxiliary fitting 3 that is fitted into the recess 2 has a trapezoidal bottom plate 3b that tapers from the rear to the front, a rear standing piece 3c formed on the rear side, and a pair of V-shapes formed on the upper and lower tapered sides. It consists of erected pieces 3d, 3d. And these V-shaped standing pieces 3d, 3d
The outer surface of the above-mentioned inclined surface 2a, 2a of the recess 2
The pressing surfaces 3a, 3a are opposed to each other, respectively.

Moreover, these standing pieces 3c, 3d of the auxiliary metal fitting 3,
A washer 4 in which a bolt hole 4a is opened is arranged in the interior surrounded by 3d, and both ends of the washer 4 are brought into contact with the upper and lower V-shaped upright pieces 3d, 3d. A bolt 5 is stretched between the washers 4, 4 of the groove-shaped members 1, 1 adjacent to each other, and a nut 6 is screwed onto the tip of the bolt 5.

Next, the procedure for connecting the grooved members in this embodiment will be explained based on FIGS. 2 to 4.

First, as shown in Fig. 2, two groove-shaped members 1,
1 is arranged so that the opposing surfaces 1c and 1c of the ends thereof are aligned. At this time, the trapezoidal recesses 2, 2 formed at both ends face each other with their tapered sides.

Next, as shown in FIG. 3, the auxiliary metal fittings 3, 3 are fitted into the recesses 2, 2, so that the inclined surfaces 2a, 2a of the recessed parts 2 and the pressing surfaces 3a, 3a of the auxiliary metal fitting 3 face each other. And furthermore, this auxiliary metal fitting 3,3
Washers 4, 4 are placed inside the bolt 5, and a bolt 5 is stretched between the two and a nut 6 is screwed onto the tip of the bolt 5.

Then, as shown in FIG. 4, by tightening the bolt 5 and nut 6, the adjacent auxiliary fittings 3, 3 are drawn toward each other. The auxiliary fitting 3 comes into contact with the sloped surfaces 2a, 2a of 2 and presses the groove-shaped members 1, 1 toward each other, while the auxiliary metal fitting 3 is wedge-shaped and enters between the sloped surfaces 2a, 2a.

At this time, the pressing force applied to the groove-shaped material 1 on each side is distributed over the entire surface of the sloped surfaces 2a, 2a of the recess 2, and the pressing direction is
a, 2a, that is, diagonally above and diagonally below with respect to the facing surfaces 1c, 1c of the groove-shaped members 1, 1. The auxiliary fitting 3 is a pair of inclined surfaces 2 of the recess 2.
They are sandwiched and fixed between a and 2a, and the groove-shaped members 1 and 1 are fastened not only in the horizontal direction but also in the vertical direction.

Therefore, according to the connection structure of this embodiment, since the fastening force is not concentrated in one part, the joint between the double-groove members 1 and 1 is less likely to be damaged, and since both are also fastened in the vertical direction, it is strong. Can be connected to Furthermore, since the auxiliary fitting 3 is fitted into the recess 2 of the groove-shaped member 1, it does not protrude from the side plates 1b, 1b of the groove-shaped member 1, resulting in a good appearance.

Note that the auxiliary metal fitting is not necessarily limited to the shape of this embodiment, and other structures such as those shown in FIGS. 5 to 9 can be considered.

First, in this embodiment, no standing piece was formed on the front part of the metal fitting, but as in the auxiliary fitting 7 shown in FIG.
can also be formed. At this time, a bolt hole 7f for passing a bolt and positioning the bolt is provided in the front standing piece 7e.

Further, as in the auxiliary metal fitting 8 shown in FIG. 6, the tapered sides of the vertically opposing V-shaped upright pieces 8d may be recessed inside the metal fitting to form a step 8d for positioning the washer.

Further, in this embodiment, the auxiliary metal fitting and the washer were configured as separate bodies, but as in the auxiliary metal fitting 9 in FIG. 7, the washer 9e is welded between the V-shaped upright pieces 9d,
It may be integrated with auxiliary fittings.

Further, in this embodiment, the auxiliary metal fitting is formed from the bottom plate and a plurality of standing pieces, but like the auxiliary metal fitting 10 in FIG. Bolt hole 10 from to rear
It is also possible to form an auxiliary metal fitting by opening B.

In addition, all of the auxiliary metal fittings shown above are used by fitting into the recesses when connecting channel-shaped members, but like the auxiliary metal fitting 11 in FIG. 9, reinforcing bars 11e are attached to the rear standing piece 11d. Fixed by welding etc.
The auxiliary metal fittings 11e can also be embedded in the trench material when forming the trench material with concrete, and used by being fixed to the trench material in advance.

[Effect of idea]

As explained above, in the connection structure of groove-shaped members of the present invention, the pressing force applied by the auxiliary fitting is applied to the groove-shaped members in a planar manner, so that the fastening force acting between the groove-shaped members is not concentrated in one part. This has the effect that the connecting portion of the groove-shaped member is less likely to be damaged.

Further, since the pressing force applied to the auxiliary fitting or the groove-shaped members acts not only in the horizontal direction but also in the vertical direction, it also has the effect that the groove-shaped members can be firmly connected to each other.

Furthermore, in the structure of the present invention, since the auxiliary fittings for connecting the groove-shaped members are inserted into the recesses of the groove-shaped members and hidden, the connecting parts do not have any protruding parts on the outer surface, making it possible to construct grooves with excellent appearance. I can do it.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the connection structure of the channel-shaped members of the embodiment;
Figures 2, 3, and 4 are explanatory diagrams showing the connection procedure of the groove-shaped members of the embodiment, and Figures 5, 6, 7, 8, and 9 are illustrations of other auxiliary fittings. A perspective view showing the structure, and FIGS. 10 and 11 are explanatory diagrams showing a conventional connection structure of groove-shaped members. 1... Channel-shaped material, 2... Recessed part, 2a... Inclined surface,
3, 7, 8, 9, 10, 11... Auxiliary metal fittings, 3a
...Press surface, 4...Washer, 5...Bolt, 6...
Natsuto.

Claims (1)

[Scope of utility model registration request] A connecting structure of groove-shaped members having a U-shaped cross section and constructing a groove at a predetermined distance by connecting a plurality of groove-shaped members, the groove-shaped members being formed on the end side surfaces of the groove-shaped members, facing each other, and having grooves formed at the ends thereof. a recessed part having a pair of inclined surfaces that are close to each other on the sides and form a V-shape, and an auxiliary metal fitting that is inserted into the recessed part and has a pair of pressing surfaces that form a V-shaped side surface and join to the inclined surfaces of the recessed part; spanned between the auxiliary metal fittings of mutually adjacent channel-shaped members,
A connecting structure of groove-shaped materials, characterized by being composed of a bolt that draws both auxiliary fittings together.