JPS6117620A - Rising and falling type gate - Google Patents

Abstract

PURPOSE:To prevent the distortion of a rising and falling type gate by a method in which a hollow strut is fixed to the side end portion of the gate, and a supporter for the rotary shaft of a sheave is set in the hollow strut. CONSTITUTION:The lower end of a gate 1 is rotatably attached with a hinge 2 and a compensatory steel tube 4 is attached to the upper part of the gate 1. A hollow strut 6 is fixed to the side end portion of the gate 1 and a supporter 18 for the rotary shaft 17 of a sheave 11 is set in the strut 6. The sheave 11 is provided in the side door catch portion 10 provided on the side of the gate 1 and a winder 14 engaged with the sheave 11 is connected to the winding wire 12 of the gate 1. Since the gate 1 is reinforced by the supporter 6, even when great loads are applied to the gate 1 during the flood period and when the gate is wound up and great distortional moment is applied to the gate, the distortion can be suppressed to a minimum.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a undulating gate installed in various waterways such as agricultural waterways.

(Background of the Invention) In this type of undulating gate, the lower end of the gate body is rotatably mounted on the river bed by a hinge part, and a wire for hoisting the gate body is tied to a sheave provided on the side of the gate body. A type of door body is widely used in which the door body is rotated about the hinge part and raised by rolling it up.

FIG. 5 shows a conventional undulating gate of this kind, with a door body 5a.
A reinforcing steel pipe 5b is attached to the upper part of the door body 5a, and the copper pipe 5b resists the force acting on the door body 5a, especially the torsional moment. The sheave 5c is housed in a side door stop 5d, and its rotating shaft 5e has one end attached to a support member 5f attached to the side inside the door body 5a.
is supported by Reference numeral 5g is a wire for winding up the door body tied to the sheave 5c, and when the door body a that has fallen on the river bed is to be erected, the wire 5g is wound up by operating a winding device (not shown). However, in the case of this type of gate, since the side end portion of the gate body 5a is supported by the wire 5g, the maximum stress is generated at the side end portion 5h on the wire 5g side, and the side end portion 5h tends to be twisted. was there. Also, it is better to install the sheave 5c at a higher position than the wire 5c.
It is advantageous for the winding operation of the support member 5f, and therefore it is desirable to provide it at a position as high as possible, such as on the side of the steel pipe 5b as shown by the chain line.However, since the steel pipe 5b is a hollow cylinder, the support member 5f is It is difficult to attach the members 51.5 securely to the inside of the steel pipe 5b, and if they are forcibly attached to the inside of the steel pipe 5b,
There is a risk that an excessive load will be applied to the steel pipe 5b and the steel pipe 5b will be extremely twisted or destroyed.For this reason, conventionally, the supporting member 5f of this type of sheave 5c has been placed below the steel pipe 5b as shown in the figure. The attachments fixed inside the door body 5a were attached to members 5i and '5j.

(Summary of the Invention) The present invention has been made in view of the above-mentioned circumstances, and the first object of the present invention is to structurally strengthen the side end portion of the door body to make it difficult to twist.

A second object of the present invention is to provide an undulating gate in which a sheave can be easily attached to any location on the side of the gate body, including on the side of the reinforcing steel pipe. For this purpose, in the present invention, a hollow support is fixed to the side end of the door, and a support member for the rotation shaft of the sheave is disposed inside the support.

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a rear view of the undulating gate according to the present invention, FIG. 2 is a rear perspective view of the main part, FIG. 3 is a sectional view thereof, and FIG. 4 is a side view. Reference numeral 1 denotes a door body, the lower end of which is rotatably mounted on a river bed 3 via a hinge part 2. 4 is a hollow reinforcing steel pipe attached to the upper part of the door body 1, and 5 is a drainer. Reference numeral 6 denotes a hollow support column fixed to the side end portion of the door body 1, which has a substantially rectangular box shape, and its upper portion protrudes above the steel pipe 4. 8 is a reinforcing plate for the support column 6, and 9 is a cover plate. Note that details of the support column 6 will be described later.

Reference numeral 10.10 denotes a side door stop, which is made of a stainless steel plate, and a sheave 11 is housed inside one of the door stops 10. 12 is a wire for winding up the door body,
It is tied to the sheave 11, and one end of it is tied to the doorstop 10.
It is fixed to a stopper 13 inside, and the other end is wound around a wheel 15 of a winding device 14. When raising the door body 1 that has fallen onto the river bed 3, use the handle 1
6 is rotated, the wire 12 is wound up, and the door body 1 rotates around the hinge portion 2 and stands up. Reference numeral 17 denotes a rotating shaft of the sheave 12, one end of which is supported by a plate-shaped support member 18.18 disposed on the upper part of the support column 6. 21.21 is a plate for mounting the supporting member work 8.18. The upper back side of the support column 6 on which the rotating shaft 17 is disposed is an opening 19, and when this gate is assembled and installed on the river bed 3 as described later, the opening 19 is
Insert your hand from there and slide the rotating shaft 17 to a predetermined position. Reference numeral 7 denotes an arc-shaped guide groove for the rotating shaft 17 formed on the inner wall surface of the door stop 10. 23 is an arcuate cover plate for the guide groove 7 attached to the rotating shaft 17, which closes the guide groove 7 when the door body 1 is laid down on the riverbed 3;
Garbage enters the doorstop 10 and damages the wire 12 and sheave 1.
1 and prevent it from interfering with the winding operation of the door body 1. Reference numeral 20 denotes a cylindrical storage body provided on the outer wall surface of the door stop 10, and when the door body 1 is assembled and installed on the riverbed 3, the rotating shaft 17 is temporarily stored in the storage body 20. . Next, the reason for installing the storage body 20 will be described.

To assemble and construct this type of gate, first install the doorstops 10.10 on both sides of the waterway, pour concrete on the sides 22.22, and then place the doorstops 10.10 between the doorstops 10.10.
will be installed. In that case, the arrangement of the rotating shaft 17 of the sheave 11 becomes a problem. That is, the rotating shaft 17 is disposed at the position indicated by the solid line in FIG. , one end of the rotating shaft '17 protruding from the inner wall surface of the door stop 10 toward the door body 1 becomes an obstacle to installing the door body 1, making it difficult to install the door body 1 between the door stops 10 and 10. . However, in this gate, the door body 1
When installing the rotating shaft 17 as shown by the chain line in Figure 3,
After removing and storing the door body 1 inside the storage body 20 and installing the door body 1 between the doorstops 10 and 10, insert your hand through the opening 19 and slide the rotating shaft 17 to the right in the figure. The attachment hole 231 formed at the end of the cover plate 23 is inserted into the support member 1 in the support column 6.
8.18 should be supported. In this way, when assembling the door body 1, if the rotating shaft 17 is temporarily stored in the storage body 20, the rotating shaft 17 will not become an obstacle for installing the door body 1, and the door Body 1 can be assembled easily. Note that the opening 19 may be closed by a closing member such as a cover plate after the rotating shaft 17 is supported by the support member 18, 18 and the door body 1 is installed. Further, once the rotating shaft 17 is supported by the supporting members 18 and 18, the two are fixed together by welding means or the like.

In the above configuration, a large load is applied to the door body 1 especially during a flood or when the door body is rolled up, and therefore a large torsion moment is applied to the door body l and the reinforcing steel pipe 4. Since the hollow support column 6 is fixed and reinforced, it can sufficiently resist the buckling load, and twisting of the door body 1 and the steel pipe 4 can be suppressed to a minimum. Furthermore, since the support column 6 is provided at the side end of the door l, the sheave 11 can be installed at any location. That is, as mentioned above, it is advantageous for the winding operation to install the sheave 11 as high as possible, but in the case of conventional gates, as shown in FIG. Since the steel pipe 5b was attached, it was difficult to install the sheave 5c on the side of the steel pipe 5b, and therefore the sheave 5c was provided on the side of the door body 5a below the steel pipe 5b. However, in the gate according to the present invention, since the support column 6 can be used as a placement part for the support member 18.18, the sheave 11 can be placed at any position on the side of the gate body 1, including the side of the steel pipe 4. can do. Furthermore, even if the sheave 11 must be installed far below the steel pipe 4 due to topographical restrictions at the gate installation site, this can be done without difficulty. In this way, the pillar body 6 is provided at the side end of the door body 1, and the pillar body 6
By utilizing the sheave rotation shaft 17 as an installation part, it not only serves as a reinforcement for the door body l, but also has the advantage that the installation position of the sheave 11 can be determined freely.

(Effects of the Invention) As explained above, in the undulating gate according to the present invention, the hollow support 6 is fixed to the side end of the door 1, and the rotating shaft 17 of the sheave 11 is supported inside the support 6. Since the member 18 is provided, the side end of the door body 1 where the maximum torsion moment occurs can be reinforced by the hollow support body 6 to prevent twisting of the gate body 1 and the steel pipe 4, and furthermore, the installation position of the sheave 11 can be adjusted. This has the effect of allowing you to freely decide on the

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a rear view of the undulating gate, Fig. 2 is a rear perspective view of the main part, Fig. 3 is a sectional view of the main part, and Fig. 4 is a side view. , FIG. 5 is a partial rear view of the conventional one.

Claims (1)

[Claims] The lower end of the door is rotatably attached to the riverbed by a hinge, and the upper part of the door is fitted with a reinforcing steel pipe. a sheave, a wire for hoisting the door body tied to the sheave, and a hoisting device for the wire; a hollow support is fixed to a side end of the door; An undulating gate consisting of a support member for the rotating shaft.