JPH0657771A - Facilities for underground structure, fitting mechanism of metal tools - Google Patents

Abstract

PURPOSE:To selectively attach facilities for an underground structure and metal tools in a plurality of fitting positions prepared in the underground structure. CONSTITUTION:Attachments 1A, 1B,... are equipped at two or more specified positions of an underground structure and certain specified receptacles 3 are provided for the insertion respectively. Fitting parts 4 to insert into the receptacle 3 are provided at a part of facilities 2 such as auxiliary ladder 13, metal hinge 12, etc., used in an underground structure. After the fitting parts 4 are inserted in the receptacles 3, fixtures 5 preventing the facilities from slipping off are applied between the receptacle 3 and the fitting parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a non-movable portion of a manhole or other underground structure as a mounting portion, and an equipment or metal fittings for an underground structure for mounting an auxiliary ladder, hinge metal fittings or other mounting members thereon. The mounting mechanism of the.

[0002]

2. Description of the Related Art For example, the opening of a manhole receiving frame is equipped with a hinge mechanism for hingedly attaching an iron lid that closes the opening, but the mounting member of the hinge fitting is cast integrally with the receiving frame. It cannot be moved, and its position determines the direction in which the iron lid is opened.

When the lid opening direction is determined, the direction for moving in and out of the manhole is also determined. Therefore, the position of the mounting member is an important matter to be considered when installing the receiving frame. However, when changing the opening direction due to subsequent changes in the installation environment, it was conventionally necessary to remove the receiving frame and attach it again.

An auxiliary ladder is used to enter and exit the manhole opening, and a mounting port for mounting the auxiliary ladder is also provided in the opening. Since this mounting port also has an integral casting structure, its position is determined by the installation of the receiving frame, and it is impossible to change the position unless the receiving frame is changed.

As described above, the conventional equipment and fittings for the underground structure cannot usually be changed in position after the fact due to the restrictions on the casting structure.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to provide a plurality of mounting positions of hinge fittings, auxiliary ladders and other mounting members provided in an underground structure. It is to be able to freely select from the mounting positions.

[0007]

In order to solve the above-mentioned problems, the present invention relates to a mechanism for mounting a part of an underground structure as a mounting portion 1 and mounting an auxiliary ladder, hinge fittings or other mounting members 2 thereon. Insertion ports 3 for inserting operation are provided in each of the two or more mounting portions 1, and a fitting portion 4 which can be inserted into and fitted into the insertion ports 3 is provided in a part of the attachment member 2. The means for engaging the fitting portion 4 with the insertion opening 3 to prevent the fitting member 4 from slipping out is provided at the insertion opening 3 or the fitting portion 4.

The fitting portion 4 is means for fixing the mounting member 2 by inserting it into the insertion opening 3 of the mounting portion 1.
Therefore, it is desirable that the fitting portion 4 is formed in a shape and structure that fits with each other when it is inserted into the insertion opening 3.

Engaging means 5 is provided to prevent the fitting portion 4 inserted into the insertion opening 3 from coming out therefrom, and the mounting member 2 is securely locked until the engagement is disengaged thereafter. To be done.

Two or more insertion ports 3 are provided, but it is desirable that they have the same size and shape. It is acceptable to prepare two or more types of insertion openings 3 depending on the size of the mounting member 2, but in that case as well, at least two locations having the same shape and size are provided.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will be given below with reference to the drawings. 1 to 5
Shows a first embodiment of the mechanism according to the present invention, and FIGS. 6 to 10 show a second embodiment.

In the first embodiment shown in FIG. 1 and the like, the mounting portion 1 is provided on the inner surface of the opening 11 of the frame 10 for an underground structure. The illustrated mounting portions 1A, 1B, 1C, 1D may be a casting structure integrated with the frame body 10, and are provided at four positions at substantially equal intervals.

In this embodiment, the hinge fitting 12 and the auxiliary ladder 13 are prepared as the mounting member 2. It is preferable that each of the insertion ports 3 penetrates vertically from the viewpoint of manufacturing and maintenance.

The fitting portion 4 to be inserted into the insertion opening 3 is made of a rectangular material (square tubular shape) having the same shape as that of the square hole of the insertion opening 3 and is slightly closer to the hinge metal fitting 12 than the hinge opening 14 side. It will be arranged in one direction. With this lateral arrangement, the position of the hinge opening 14 is not raised and the position can be set freely. The fitting portion 4 is cast integrally with the portion of the hinge opening 14.

The fitting portion 4 of the auxiliary ladder 13 is provided at the lower end of the ladder so as to project downward. It is arranged at the center of the auxiliary ladder 13 in order to balance the left and right, and the auxiliary ladder 13 has a structure integrated by welding or the like.

In the case of the first embodiment, the movable portion of the engaging means 6 is provided in the fitting portion 4 (FIGS. 2 to 5). For this reason, the fitting portion 4 is formed in a rectangular tube shape, and the window 15 opened on the side surface thereof.
A latch 6 whose tip is retractable is rotatably supported by a shaft 16.

The latch 6 has an inclined surface 6a which is pushed by the inner wall 17 of the hole when the fitting portion 4 is inserted into the insertion opening 3 (FIG. 4) so that the latch 6 is retracted inward.
After the latch 6 is completely fitted into the insertion opening 3, it has an engaging surface 6b capable of engaging with the rim 18 of the engaging opening 7 when trying to pull it up. Reference numeral 19 is a releasing projection provided on the lower portion of the latch, and the latch 6 is rotated clockwise in FIG. 4 to disengage the engaging surface 6b from the rim 18. The engaging means 5 of the auxiliary ladder 13 can also be configured in the same manner as the hinge fitting 12 (FIG. 5).

In the case of the first embodiment, when the lower end of the hinge opening 14 is in contact with the upper end of the insertion opening 3, or the auxiliary ladder 13 is used.
The latch 6 engages with the engaging opening 7 when the lower end of the contacting end contacts the upper end of the insertion opening 3. That is, the hinge opening 14 and the auxiliary ladder 13
The lower end 20 of the is a stopper / positioning portion.

In Embodiment 2 shown in FIG. 6 and the like, a latch 6'constituting the engaging means 5 is provided on the insertion port 3 side,
An engagement port 7 ′ that can be engaged with it is formed on the side surface of the fitting portion 4. Therefore, the slope 6a is provided on the upper side of the latch 6 so that the latch 6 is pushed outward from the insertion opening 3 by the insertion of the fitting member 4, and the engagement surface 6b and the lower edge 18 'of the engagement opening 7 are formed. It is provided on the lower side of the latch 6 so as to be engaged (FIGS. 9 and 10).

In the case of the second embodiment, the latch 6 is pivotally supported by the support shaft 21 on the side wall of the insertion opening 3, and the end portion of the latch 6 is projected outward by the mounting opening 22 formed on the side wall.
The projecting end 23 serves as an operating portion for disengaging. Therefore, the releasing projection as in the reference example 1 is unnecessary.

Since the other structure may be the same as that of the first embodiment, the reference numerals are used and the detailed description is omitted. In each figure of Examples 1 and 2,
Numeral 24 is an extension extending to the side of the mounting portion 1, which is the hinge fitting 1
2. The lower end 20 of the auxiliary ladder 13 can come into contact with it.
In the above example, for one mounting member 2, 1
Although only the case of using a pair of mounting mechanisms has been described, this is not an absolute condition, and a configuration using two sets of mounting mechanisms may be used.

The four mounting parts 1A, 1B, 1C,
The 1D insertion port 3 has been described on the assumption that the size and the shape are all the same. In this case, since a large number of insertion ports 3 can all be used for attaching the hinge fitting 12 and the auxiliary ladder 13, the selection range is wide.

The insertion opening 3 of the mounting mechanism according to the present invention constructed as described above is provided on four sides of the opening 12 of the frame 11 as shown in FIG. The hinge fitting 12 is mounted on any of the parts 1A, 1B, 1C, 1D, and the remaining mounting parts 1A, 1B, 1C, 1
The auxiliary ladder 13 can be attached to any of D (see FIG. 12).

Further, the mounting position of the hinge fitting 12 is
When the mounting portion 1A is selected and used, if the lid opening direction is not appropriate due to changes in surrounding conditions, the other mounting portions 1B, 1
It can be changed to C or 1D. In this case, the mounting position of the auxiliary ladder 13 can be changed to any mounting portion, so that the optimum position can be selected when entering or leaving the manhole.

The four mounting portions are divided into two sets each having two mounting portions. For example, one pair of mounting portions 1A and 1B at the opposite positions are for hinge fittings, and the other pair of mounting portions 1C and 1D are auxiliary ladders. Can also be configured to be used for. In that case, the insertion opening 3 of the hinge fitting mounting portions 1A and 1B may be smaller than the insertion opening 3 of the auxiliary ladder mounting portions 1C and 1D. In any case, the number and direction of the mounting portions 1 can be set arbitrarily.

[0026]

Therefore, according to the present invention, the position of the mounting member 2 mounted on the frame of the underground structure or the like can be changed appropriately, so that even after the frame or the like is once installed, it is replaced. Without changing the position of the hinge metal fittings, the opening and closing direction of the lid can always be directed to a suitable position, and the position of the auxiliary ladder, which should be changed accordingly, can also be changed. Eliminate the above problem,
In addition, it also has a remarkable effect such as increased safety.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a mounting mechanism according to the present invention.

FIG. 2 is a partially omitted plan view of an essential part of the same.

FIG. 3 is a partially cutaway side view of the main part of the same.

FIG. 4 is an enlarged cross-sectional view of the same main part.

FIG. 5 is a similar enlarged sectional view.

FIG. 6 is an exploded perspective view showing a second embodiment of the mounting mechanism.

FIG. 7 is a partially omitted plan view of the same as above.

FIG. 8 is a partially cutaway side view of the essential part of the same.

FIG. 9 is an enlarged sectional view of the same main part.

FIG. 10 is a similar enlarged sectional view.

FIG. 11 is a plan view illustrating the operation of the present invention.

FIG. 12 is a sectional explanatory view of the same.

Claims (5)

[Claims] 1. A mechanism for mounting a part of an underground structure as a mounting portion 1 and mounting a mounting member 2 such as an auxiliary ladder, a hinge metal fitting, or the like on each of the mounting portions 1 at two or more locations. Insertion ports 3 for inserting operation are provided, and a fitting portion 4 which is inserted into the insertion ports 3 and can be fitted is provided in a part of the mounting member 2, and a fitting portion 4 into the insertion port 3 is provided. The fitting mechanism 5 for engaging underground fittings and fittings for preventing the fitting member 4 from slipping out is provided in the insertion opening 3 or the fitting portion 4. 2. The insertion opening 3 is a square hole in the vertical direction, and a fitting portion 4
Is made of a small square member having the same shape as that of the square hole, and a latch 6 that can be retracted is attached to the side surface of the fitting portion 4 that is parallel to the inserting direction as the engaging means 5, and the engaging member that can engage with the latch 6 is attached. The fitting mechanism for the underground structure equipment and fittings according to claim 1, wherein the joint opening 7 is formed on the side wall of the insertion opening 3. 3. An engagement opening 7'is formed on a side surface of a fitting portion 4 parallel to the insertion direction, and a latch 6'engageable with the engagement opening 7'is inserted into and retracted from the insertion opening 3. The mounting mechanism for equipment and fittings for an underground structure according to claim 1, which is provided on the third side. 4. Latches 6 and 6 ′ are pushed from the inner wall of the mouth by inserting the fitting portion 4 into the insertion opening 3 and are slanted into the fitting portion 4, and the slant surface 6a from the insertion opening 3 is inserted. 4. The equipment for mounting an underground structure according to claim 2 or 3, which has an engaging surface 6b which can be engaged with the edges of the engaging openings 7 and 7'by pulling up. 5. The latches 6, 6'in the natural state are the engaging ports 7,
The second or third aspect of the present invention is pivotally supported by the fitting portion 4 or the insertion opening 3 so as to be inclined in the direction of engaging with 7 '.
The attachment mechanism for the equipment and metal fittings for the underground structure described in paragraph.