JP7312450B2 - holder for cylinder - Google Patents

Description

The present invention relates to a retainer for retaining hydraulic cylinders for earth retaining.

Hydraulic cylinders for retaining earth are attached to the retainers and spanned, for example, between opposing wales. When the liquid is sent from the liquid sending device to the cylinder, the cylinder extends and presses the wale.

Here, a conventional retainer 100' will be described with reference to FIG. FIG. 5 is a perspective view of a conventional retainer 100'. It should be noted that the reference numerals of the constituent elements of the conventional holder 100' are represented by adding "'" to the reference numerals of the respective constituent elements of the holder 100 of the present invention, which will be described later.

The retainer 100' comprises a side rail 10', a pad 20', a plug 30' and a handle 60'. A pad 20' is attached to the side rail 10'. Plug 30' and cylinder C are attached to pad 20'. The plug 30' is connected to a hose socket of a liquid delivery device (not shown). Normally, the socket and plug 30' are one-touch attachable and detachable sockets and plugs. Liquid from the liquid delivery device is fed into the cylinder C through the pad 20' from the hose. The handle 60' consists of a U-shaped bar member and is attached to the upper portion of the side rail 10'.

After the earth retaining work is finished, it is necessary to remove the socket from the plug 30' and press the tip of the plug 30' to drain the liquid from the inside of the cylinder C. However, since the socket and plug 30' are under pressure from the liquid, it is difficult to manually remove the socket from the plug 30' or to manually press the tip of the plug 30'. Therefore, conventionally, a tool T is used to remove the socket from the plug 30' or press the tip of the plug 30' by utilizing the lever principle.

Here, a method of pressing the tip of the plug 30' with the tool T will be described with reference to FIG. In FIG. 6, arrows indicate the moving direction of the tool T when pressing the plug 30'. A tool T is inserted into the inner space of the U-shaped handle 60' from above the holder 100', and the tool T is brought into contact with the tip of the plug 30'. Then, the tool T is brought into contact with the handle 60', and the tip of the plug 30' is pressed using the principle of leverage with the contact point between the tool T and the handle 60' as a fulcrum. By doing so, a force larger than the force applied to the tool T by the user of the tool T can be applied to the tip of the plug 30'.

Conventionally, in embodiments where one cylinder is connected to one side rail, the socket or plug can be operated in the manner described above. However, in an embodiment in which a plurality of pads are vertically spaced apart from one side rail and each pad is connected to a plug and a cylinder, it may not be possible to secure a space for arranging a handle and a space for inserting a tool above the plug attached to a pad below the uppermost pad due to the design. Therefore, it may be difficult to operate the sockets or plugs below the uppermost level by inserting a tool from above the plugs as in the conventional art.

An object of the present invention is to provide a holder capable of vertically arranging a plurality of cylinders, in which a plug arranged below the uppermost stage or a liquid-feeding joint such as a socket connected to the plug can be easily operated with a tool.

The present invention provides inventions of the following aspects.
(Item 1)
A holder for holding a hydraulic cylinder for earth retention that extends by sending a liquid from a liquid sending device,
side rails extending in the vertical direction;
a plurality of pads arranged at intervals in the vertical direction on the side rails for mounting the plurality of cylinders;
a plurality of plugs respectively attached to the plurality of pads and connected to a socket of the liquid delivery device;
a support disposed on at least one lateral side of the plug positioned below at least the topmost plug and brought into contact with a tool for operating the socket or the plug to serve as a fulcrum of a lever;
a retainer.

(Item 2)
the support is detachably connected to at least one of the side rail and the pad;
A retainer according to item 1.

(Item 3)
both the pad and the support are detachably connected to the side rail by a mounting member;
A retainer according to item 2.

(Item 4)
the support is integrally formed with at least one of the side rail and the pad;
A retainer according to item 1.

(Item 5)
the support comprises a ring-shaped member,
5. A holder according to any one of items 1-4.

In the retainer of the present invention, supports are arranged on at least one of the right and left sides of the plugs below the uppermost plug. Thus, by inserting the tool from the right or left side of the plug and bringing it into contact with the support, the socket or plug can be operated using the contact point between the tool and the support as the fulcrum of the principle of leverage.

It is an assembly perspective view of a holder. It is an exploded perspective view of a holder. It is a perspective view which shows the usage condition of a holder. (a) A side view showing a state in which the tip of the plug is pressed by a tool, and (b) a bottom view showing a state in which the tip of the plug is pressed by the tool. 1 is a perspective view of a conventional retainer; FIG. FIG. 10 is a side view showing a state in which a tip of a plug of a conventional holder is pressed by a tool;

A holder of the present invention will be described with reference to the drawings. The embodiment described below represents a preferred specific example of the present invention. The present invention is not limited to the following embodiments, and can be modified as appropriate without departing from the scope of the invention.

<1 Structure of holder>
1 is an assembled perspective view of the holder 10, FIG. 2 is an exploded perspective view of the holder 10, and FIG. 3 is a perspective view showing how the holder 10 is used. Below, upper, lower, upper left, lower right, lower left, and upper right of FIG.

As shown in FIG. 1 , the retainer 100 includes side rails 10 , a plurality of pads 20 , a plurality of plugs 30 , supports 40 , mounting members 50 and handles 60 . In this embodiment, two pads 20, two plugs 30, and two supports 40 are provided. A plurality of pads 20 and supports 40 are attached to side rail 10 by attachment members 50 . Each plug 30 is attached to each pad 20 respectively. The handle 60 consists of a U-shaped bar member and is attached to the upper part of the side rail 10 . The detailed structure of each component will be described below.

As shown in FIGS. 1 and 2 , the side rail 10 has a first wall portion 11 and a second wall portion 12 . The first wall portion 11 has a flat plate shape extending in the vertical direction. The second wall portion 12 rises from each of the left and right ends of the first wall portion 11 so as to form a substantially right angle with the first wall portion 11 . A plurality of through holes 12a are formed in the second wall portion 12 so as to be separated from each other in the vertical direction. The mounting member 50 is inserted into the through hole 12a.

As shown in FIGS. 1 and 2, in this embodiment, the mounting member 50 is a shaft. Through holes 50 a are provided at both ends of the mounting member 50 in the axial direction. When the mounting member 50 is inserted into the through hole 12 a of the side rail 10 , the through hole 50 a is positioned outside the second wall portion 12 . By inserting a positioning member P such as a pin into the through hole 50a, movement of the mounting member 50 in the left-right direction is restricted. Thereby, the mounting member 50 is positioned in the left-right direction.

As shown in FIGS. 1 and 2, the two pads 20 are arranged on the first wall portion 11 of the side rail 10 with a space therebetween in the vertical direction. A through hole 20a is formed through the pad 20 in the left-right direction. A mounting member 50 is inserted into the through hole 20 a of the pad 20 , thereby mounting the pad 20 to the side rail 10 .

As shown in FIG. 2, the pad 20 includes a plug mounting portion 20b for mounting the plug 30 and a cylinder mounting portion 20c for mounting the cylinder C. As shown in FIG. The plug attachment portion 20b is a hole formed with a female thread that can be screwed with the male thread of the plug 30 . As shown in FIG. 3, each plug 30 is connected to a socket S of a bifurcated hose H of the liquid delivery device. A known socket S and plug 30 can be used for the socket S and the plug 30 (these may be collectively referred to as a "liquid feeding joint" hereinafter). The socket S and the plug 30 are preferably a one-touch detachable socket S and plug 30 such as a one-touch coupler.

As shown in FIG. 2, the cylinder attachment portion 20c is formed below the plug attachment portion 20b. The cylinder mounting portion 20c is a hole formed with a female screw that can be screwed with the male screw of the cylinder C. As shown in FIG.

The plug attachment portion 20b and the cylinder attachment portion 20c are communicated with each other by a channel (not shown). Further, the channel communicates with a liquid injection port (not shown) provided in the cylinder C when the cylinder C is attached to the cylinder attachment portion 20c. As a result, the liquid sent from the liquid sending device is supplied into the cylinder C from the plug 30 through the channel.

As shown in FIGS. 1 and 2, the two supports 40 are respectively arranged on the right and left sides of the plug 30 attached to the second pad 20 from the top. In this embodiment, the support 40 consists of a ring-shaped member.

As shown in FIG. 2, the support 40 has a through hole 40a. The support 40 is positioned between the second wall 12 of the siderail 10 and the pad 20 such that the through hole 40a is aligned with the through hole 12a of the siderail 10 and the through hole 20a of the pad 20. As shown in FIG. The support 40 is attached to the side rail 10 together with the pad 20 by inserting the attachment member 50 into the through holes 12a, 20a, 40a.

When the support 40 is attached to the side rail 10, in a side view, the front end of the support 40 extends further forward than the front end (tip) of the plug 30, and the plug 30 is inside the ring-shaped support 40 (see FIG. 4(a)).

<2 How to operate the liquid transfer joint using a tool>
Next, a method of operating the liquid feed joint using the tool T will be described. Here, a method of pressing the tip of the plug 30 with a tool T in order to discharge the liquid accumulated in the cylinder C will be described with reference to FIG. 4(a) is a side view showing a state where the tip of the plug 30 is pressed by the tool T, and FIG. 4(b) is a bottom view showing a state where the tip of the plug 30 is pressed by the tool T. FIG.

A tool T is passed through the ring-shaped support 40 and the tip of the tool T is brought into contact with the tip of the plug 30 . Next, while keeping the tip of the tool T in contact with the tip of the plug 30 , the tool T is pulled up so as to press against the inner edge of the ring-shaped support 40 . By doing so, a larger force than the force applied to the tool T by the user can be applied to the tip of the plug 30 by the principle of leverage with the contact point between the tool T and the support 40 as a fulcrum. In this manner, the liquid accumulated in the cylinder C can be discharged.

In addition to the above, for example, when the socket S is removed from the plug 30 with the tool T, or when the socket S is pushed into the plug 30 with the tool T in order to further inject liquid into the cylinder C, the tool T is brought into contact with the support 40 and a large force can be applied to the liquid delivery joint by utilizing the principle of leverage.

<3 Features>
In the holder 100 of the present invention, supports 40 are arranged on the right and left sides of the plug 30 below the uppermost stage (that is, the second plug 30 from the top). As a result, even if there is no space for inserting the tool T above the liquid feeding joints arranged at the second position or lower from the top, the liquid feeding joints can be operated by inserting the tool T from the left or right direction.

Since the supports 40 are arranged on both the right and left sides of the plug 30, the tool T can be inserted from either the right or left side of the plug 30. FIG. Therefore, for example, even if there is not enough space for inserting the tool T on the right side of the plug 30, the tool T can be inserted from the left side of the plug 30 to operate the liquid feeding joint.

Since the support 40 is detachable from the side rail 10 or the pad 20, the support 40 can be easily replaced and the mounting position of the support 40 can be easily changed.

Since the pad 20 and the support 40 can be attached to the side rail 10 by one attachment member 50, the number of parts can be reduced.

<4 Modifications>
The embodiment described above represents only one preferred embodiment of retainer 100 . Various modifications are conceivable for the retainer 100 of the present invention. Modified examples of the holder 100 will be described below. Modifications described below can be appropriately combined without departing from the gist of the present invention.

(1) The support 40 may be arranged only on either the right side or the left side of the plug 30 .

(2) the support 40 may be non-removable from the siderail 10 or pad 20; Also, the support 40 may be integrally formed with the side rail 10 or the pad 20 .

(3) The support 40 may be arranged on at least one of the right side and the left side of the plug 30 positioned at the top.

100 holder 10 side rail 20 pad 30 plug 40 support 50 mounting member C cylinder S socket T tool

Claims (5)

A holder for holding a hydraulic cylinder for earth retention that extends by sending a liquid from a liquid sending device,
side rails extending in the vertical direction;
a plurality of pads arranged at intervals in the vertical direction on the side rails for mounting the plurality of cylinders;
a plurality of plugs respectively attached to the plurality of pads and connected to a socket of the liquid delivery device;
a support disposed on at least one lateral side of the plug positioned below at least the topmost plug and brought into contact with a tool for operating the socket or the plug to serve as a fulcrum of a lever;
a retainer. the support is detachably connected to at least one of the side rail and the pad;
A retainer according to claim 1 . both the pad and the support are detachably connected to the side rail by a mounting member;
3. A retainer according to claim 2. the support is integrally formed with at least one of the side rail and the pad;
A retainer according to claim 1 . the support comprises a ring-shaped member,
A holder according to any one of claims 1 to 4.

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