JP2580995Y2 - Trough connection structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure for a cable storage trough.

[0002]

2. Description of the Related Art When arranging cables such as electric wires and communication lines, a large number of troughs are connected and the cables are stored in the troughs to protect the cables. Conventionally, FIG.
As shown in the figure, the fitting recess on the connection end face of one trough (1)
(2), and the fitting protrusion on the connection end face of the other trough (1).
(3), and the troughs (1) are mutually connected by fitting the fitting protrusion (3) of the other trough (1) inside the fitting recess (2) of the one trough (1). Connect or partition at the center of the U-shaped frame (5) as shown in FIG.
(6), and a connecting part (4) having fitting parts (7, 7) formed on both sides of the connecting part (4), and each fitting part (7, 7) on both sides of the connecting part (4) has a trough (7). 1) By fitting the connection end of
(1) The structure to connect each other was adopted.

In the above-mentioned conventional connection structure, the trough connection portion is fixed by its own weight when the weight is heavy such as a concrete trough, or when the weight is light such as a plastic trough, a screw (8) is used as shown in FIG. ) Alternatively, a fastening tool such as a rivet or a bolt nut is used, or a method of bonding with an adhesive is used.

[0004]

However, concrete troughs are heavy and have problems in workability and safety, and plastic troughs require labor such as fastening with fasteners or bonding with an adhesive.

[0005]

According to the present invention, as a means for solving the above-mentioned conventional problems, a receiving step (12) having an enlarged width is provided at a connecting end of one trough (11). Rotation guide holes (13, 13) are provided in the center of the upper bottom (12A) of the step (12),
Further, a plurality of recesses (1) are provided on both left and right sides of the upper bottom surface (12A).
(4,15,16,17,18,19)
At the center of the lower bottom (20A) of the connection end (20) of (11)
1), and projecting (2) on both left and right sides of the lower bottom surface (20A).
2, 22), and the connection end (20) of the other trough (11) is fitted inside the step portion (12) of the one trough (11), and the one (1)
The other trough is provided in the rotation guide hole (13, 13) of the trough of (1).
The shaft rods (21, 21) of (11) are rotatably or slidably fitted, and the left and right recesses (14, 15, 16, 16) of the one trough (11) are connected depending on the connection angle of the trough (11). 17,18,19) or one of the holes, each of which has a projection on the other trough (11).
(22, 22) is provided.

[0006]

[Function] A rotation guide hole of the receiving portion (12) of one trough (11).
(13, 13) to the connecting rod (21, 2) of the connecting end (20) of the other trough (11).
1) is rotatably or slidably fitted so that the connecting portion of the troughs (11) is fixed to the front, rear, left and right or left and right. Further, one of the left and right recesses (14, 15, 16, 17, 18, 19) or holes of the one trough (11) is selected depending on the connection angle of the troughs (11) and the other is provided to the other. Trough (1
The connection angle is fixed by fitting the left and right projections (22, 22) of 1).

[0007]

1 to 6 show a first embodiment of the present invention. The pair of troughs (11, 11) to be connected have a U-shaped cross-section gutter shape, and a connecting end of one trough (11) is provided with a receiving step (12) having an enlarged width. At the center of the upper bottom surface (12A) of the step portion (12), a pair of right and left circular arc holes (13, 13) centering on the rotation center P is penetrated, and further, on both left and right sides of the upper bottom surface (12A). Each has a plurality (three) of recesses (14, 15, 16, 17, 18, 19) formed therein. A hole may be provided in place of the concave portion (14). The other connection end of the pair of troughs (11, 11) to be connected
A shaft rod (21, 21) having a wedge-shaped locking projection (21A) that opens outward at the tip is vertically provided at the center of the lower bottom surface (20A). ) Are formed with projections (22, 22).

In order to connect the pair of troughs (11, 11), as shown in FIG. 3, the connecting portion (12) of the other trough (11) is placed inside the receiving portion (12) of one trough (11). 20) is fitted. Then, the shaft rods (21, 21) of the other trough (11) slidably penetrate through the arc holes (13, 13) of the receiving portion (12) of the one trough (11), respectively. Insert the locking projections (21A, 21A) of the rod (21, 21) into the arc holes.
(13,13)
Fix the connection part of (11,11) vertically and horizontally. The shaft (21,
The locking projections (21A, 21A) of (21) may be in the form of wedges that open inward, and may be engaged with the inner lower peripheral edge of the arc holes (13, 13). Further, depending on the connection angle of the trough (11, 11), the one trough (11)
By selecting one of the left and right recesses (14, 15, 16, 17, 18, 19) and fitting the projections (22, 22) of the other trough (11) into them, respectively. 11,11) Fix the mutual connection angle.

For example, as shown in FIG.
Select the recess (16) and the recess (17) of (1) and select the other trough (1).
If the projections (22, 22) of 1) are fitted to them, the other trough (11) is connected to the one trough (11) by bending to the left, as shown in FIG. Recess (14) of one trough (11)
And the recess (19), the other trough (11) is bent rightward and connected to the one trough (11), and the recess of the one trough (11) as shown in FIG. (15) and recess (18)
Is selected, the connection between the one trough (11) and the other trough (11) becomes linear.

FIGS. 7 and 8 show a second embodiment of the present invention. In this embodiment, the receiving portion (12) of one trough (11)
A circular hole (23) centering on the center of rotation P of the trough (11, 11) penetrates the bottom surface, and a cylindrical shaft (24) extends from the bottom surface of the connection end (20) of the other trough (11). ) Is hanging. A wedge-shaped locking projection (24A) is formed on the lower edge of the cylindrical shaft (24), and a plurality of slits (24B) are formed on the peripheral wall of the shaft (24).
Is provided. When the shaft rod (24) of the other trough (11) is rotatably fitted into the circular hole (23) of the one trough (11),
The locking projection (24A) of the shaft rod (24) is engaged with the lower peripheral edge of the circular hole (23) of the trough (11), and the connecting portions of the trough (11, 11) are fixed up, down, front, back, left and right, Further, depending on the connection angle of the troughs (11, 11), the left and right recesses (14, 15, 16, 17, 17, 18,
19) and select one of them for the other trough (1
By fitting the projections (22, 22) of (1) respectively,
1,11) Fix the mutual connection angle.

FIGS. 9 and 10 show a third embodiment of the present invention. In this embodiment, the receiving portion of one trough (11)
Under the circular hole (23) of (12), an enlarged circular hole (26) is further provided via a step (25). As in the previous embodiment, a cylindrical shaft (24) of the other trough (11) is rotatably fitted into the circular hole (23) of the one trough (11), and the shaft (24) Locking projection (24A)
By engaging the step (25) of the circular hole (23), the connecting portion of the troughs (11, 11) is fixed up, down, front, back, left and right,
Further, depending on the connection angle of the trough (11, 11),
Select one of the left and right recesses (14, 15, 16, 17, 18, 19) of (11) and fit the projections (22, 22) of the other trough (11) with them. Fix the connection angle between the troughs (11, 11).

FIGS. 11 and 12 show a fourth embodiment of the present invention. In the present embodiment, the enlarged diameter circular hole (26) of the circular hole (23) of the receiving portion (12) of one trough (11) has a bottom portion (27), which is the same as in the previous embodiment. The circular hole (23) of the one trough (11)
The cylindrical shaft (24) of the other trough (11) is rotatably fitted to the other end of the trough (11), and the locking projection (24A) of the shaft (24) is fitted to the step of the circular hole (23).
By engaging with (25), the connecting portions of the troughs (11, 11) are fixed up, down, front, rear, right and left, and furthermore, troughs (11, 11)
Depending on the connection angle of the left and right recesses (1) of the one trough (11).
4,15,16,17,18,19), and by fitting the protrusions (22,22) of the other trough (11) with these, respectively, the troughs (11,11) Fix the connection angle of.

In addition to the above embodiment, the shaft (24) of the trough (11) does not need to be provided with a slit, and may be disk-shaped. Further, the locking projection (24A) may have a flange shape. Further, the locking projection is not essential to the present invention and may be omitted.

[0014]

[Effects of the Invention] Therefore, in the present invention, the connecting portion between the troughs can be fixed by simple means.

[Brief description of the drawings]

 1 to 6 show a first embodiment of the present invention.

FIG. 1 is a plan view of a trough connection part.

FIG. 2 is a side view of a trough connection part.

FIG. 3 is a partial sectional view of a trough connection.

FIG. 4 is a plan view of a trough connection part in the case of left bending.

FIG. 5 is a plan view of a trough connection part in the case of right bending.

FIG. 6 is a plan view of a portion of a trough connection in the case of a straight line. FIG. 7 and FIG.

FIG. 7 is a partial plan view of a trough receiving step portion.

FIG. 8 is a partial sectional view of a trough connection. FIGS. 9 and 10 show a third embodiment of the present invention.

FIG. 9 is a partial plan view of a trough receiving step portion.

FIG. 10 is a partial sectional view of a trough connection. FIGS. 11 and 12 show a third embodiment of the present invention.

FIG. 11 is a partial plan view of a trough receiving step portion.

FIG. 12 is a partial sectional view of a trough connection.

FIG. 13 is an explanatory view of a conventional example.

FIG. 14 is an explanatory view of another conventional example.

[Explanation of symbols]

 11 Trough 12 Receiving part 12A Upper bottom 13 Arc hole (Rotation guide hole) 14,15,16,17,18,19 Recess 20 Connection end 20A Lower bottom 21,24 Shaft 22 Projection

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 52-169098 (JP, U) JP-A 58-183023 (JP, U) JP 6-6699 (JP, Y2) (58) Field (Int.Cl. ⁶ , DB name) H02G 9/00-9/12 H02G 3/00-3/04

Claims (4)

(57) [Scope of request for utility model registration] 1. A connecting portion of one trough is provided with a stepped portion having an enlarged width, a rotation guide hole is provided at a center of an upper bottom surface of the stepped portion, and further, on both left and right sides of the upper bottom surface. A plurality of recesses or holes are vertically provided, a shaft is vertically provided at the center of the lower surface of the connection end of the other trough, and projections are formed on both left and right sides of the lower surface. The connection end of the other trough is fitted inside the stepped portion of the other trough, and the shaft of the other trough is fitted into the rotation guide hole of the one trough so as to rotate or slide freely. Characterized in that one of the left and right recesses or holes of the one trough is selected according to the connection angle, and the projections of the other trough are fitted into these, respectively. 2. The rotation guide hole of the one trough is a pair of left and right arc holes centered on the center of rotation of the troughs, and the shaft of the other trough corresponds to the arc hole of the one trough. The trough connection structure according to claim 1, wherein a pair of left and right sides is vertically suspended, and a wedge-shaped locking projection is provided at a tip end of the shaft rod. 3. The rotation guide hole of the one trough is a circular hole centered on the center of rotation between the troughs, and the shaft of the other trough has a cylindrical shape corresponding to the circular hole of the one trough. 2. The trough connection structure according to claim 1, wherein the trough connection structure is disk-shaped. 4. A locking projection is provided below the cylindrical or disc-shaped shaft to engage with a lower edge of the circular hole.
Trough connection structure described in