JP2873185B2 - Lid support frame for underground structures - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover receiving frame having a structure in which a cover is connected to a frame by a hinge mechanism in an underground structure.

[0002]

2. Description of the Related Art In recent years, it is relatively small (small diameter) for sewage.
Lid lid frames have come to be used. The standard manhole size used for general sewerage is about 600
mm, the size of a relatively small one (small diameter) is, for example, about 300 mm, and it is being used for a wide range of purposes such as on public roads and in residential lands.

A sewage system accommodated in such a relatively small (small-diameter) lid receiving frame is, for example, a public basin, which is made of synthetic resin such as vinyl chloride and provided for maintenance and the like. The lid has a structure operated from above. Because it is made of resin, it cannot be installed exposed on the ground surface due to the problem of strength, and is protected by the above-mentioned lid receiving frame. Since the lid receiving frame is made of cast iron such as spheroidal graphite cast iron,
It can withstand vehicle traffic sufficiently.

However, for the convenience of inspection and maintenance, the public basin is as shallow as possible, and is often constructed with the ground raised near the ground surface, and a space for opening and closing the public basin lid is required. For this reason, it is required that the lid receiving frame covering the public square has a large internal space. For this reason, when the conventional lid receiving frame in which the lid and the frame are hinged is used, there is a possibility that a part of the hinge comes into contact with the public square and is damaged. As a result, when the conventional hinged lid receiving frame is used, it is difficult to sufficiently meet the demand for installation as shallow as possible, or it is necessary to use an unnecessarily large lid receiving frame. I had a problem.

[0005] When a lid receiving frame having no hinge connection structure is used, there is no problem of contact with the public box. But,
In the lid receiving frame having no hinge connection structure, there is a problem that the lid is separated from the frame by opening the lid, so that the lid is easily lost or damaged.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide a cover receiving frame for an underground structure in which a lid is connected to a frame by a hinge mechanism. An object of the present invention is to enable the lid to be opened and closed without damaging other structures to be installed and without obstructing other structures.

It is another object of the present invention to provide a structure in which a lid hinged to a frame can be pivoted substantially horizontally.

[0008]

Means for Solving the Problems The present invention for solving the above problem is, when the lid opening, and the outer lid 11 from the frame 12, reversing
The hinge member 13 is elongated and bent in the moving direction, and the hinge member 13 is pivotally supported at its upper end on the periphery of the lower surface of the lid, and is connected to the hinge member 13 for connecting the open lid 11 to the frame 12. And a hinge mechanism 15 is formed by the engagement means 14 provided on the frame body side. When the cover is closed, the hinge member 13 is guided to move from the inside of the frame body 12 to the outside. The engaging means 14 is installed near the inner peripheral surface of the frame 12, and the recess 16 is used as a space for moving the hinge member 13.
2 is provided outward from the inner peripheral surface , and the lid 11 is further
The upper end of the hinge member 13 in order to be able to turn in a horizontal position
The part around the longitudinal axis 19 in which took measures as Ru rotatably provided.

[0009]

The hinge mechanism 15 according to the present invention comprises a hinge member 13 pivotally supported on the lid 11 side and an engaging means 14 provided on the frame 12 side. 1
4 are engaged with each other. Therefore, the lid 11 is attached to the frame 1
When it is moved to remove it from the hinge 2, the hinge member 13 which is elongated and curved in that direction moves while being restrained by the engaging means 14, and conversely, the lid 11 is moved so as to rest on the frame 12. The hinge member 13 also moves in the opposite direction while being restrained by the engagement means 14.

The engaging means 14 is provided near the inner peripheral surface of the frame 12 and guides the hinge member 13 so as to move from the inside of the frame 12 to the outside when the lid is closed.
Only the portion protruding outward from the frame body beyond the intermediate portion of the frame body 12 is left inside the frame body 12 near the joint with the lid 11 (FIG. 4). Then, the hinge member 13 moves along a position (moving route) at a distance from another structure (such as the public square) 10 installed inside the frame 12.

The frame member 12 is located beyond the intermediate portion of the hinge member 13.
Of the hinge member 13, the hinge member 13 is not exposed to the outside of the frame. In addition, the hinge member 13 is attached to the lid 1.
When the hinge member 13 is rotatably attached to a shaft bracket 18 that supports the frame 1 via a longitudinal axis 19, the lid 11 is attached to the frame 1.
2 and can be turned substantially horizontally in the state shown by the solid line in FIG. 7, and can be opened without turning over as shown by the chain line in FIG.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The lid receiving frame for an underground structure according to the present invention shown in each figure has a structure in which a lid 11 is connected to a frame 12 by a hinge mechanism 15. The hinge mechanism 15 includes a hinge member 13 provided on the side of the lid 11 and an engaging means 14 provided on the side of the frame 12.

The hinge member 13 has an elongated and curved shape so that when the lid 11 is moved relative to the frame 12 for opening and closing, the amount of inward projection of the frame 12 is minimized. Have. When the curved shape is curved toward the lower part outwardly, bypassing the inner corner 21 most protruding into the opening 20 from above the inside of the frame 12, and being concave with respect to the inner corner 21, the hinge is formed. When the member 13 moves, a substantially constant path can be followed. A flange 21 'is provided in the opening of the frame 12 shown in the figure, and a part thereof is cut out to form a notch 21 "so that the protrusion of the inner corner 21 is reduced.

The engagement means 14 engages with the hinge member 13 to connect the open lid 11 to the frame 12.
In particular, when the lid is closed, the hinge member 13 is provided at a position where the hinge member 13 is guided to move outward from the inside of the frame 12. The illustrated engaging means 14 is a shaft-like member 23 inserted into an arc-shaped hole 22 formed in the longitudinal direction of the hinge member 13, and as shown in FIG. The pins are passed through the provided bearing ports 24, 24, and attached as stoppers 25. The shaft-shaped member 23 'may be a bolt, and in this case, the nut serves as a retaining 25'.

The position of the engaging means 14 indicated by the shaft-like members 23 and 23 'is a position where the curved hinge member 13 moves along a substantially constant path when the lid is opened and closed, in the illustrated case. Is set at a position slightly above the side opening 26 (see FIG. 4). Then, the recessed portion 16 for securing the movement path of the hinge member 13 is provided from the side opening 26 toward the outside of the frame. The illustrated recess 16 is the hinge member 1.
Cover 27 provided outside the frame so as to surround the movement path of the third
Is the space inside. The recess 16 is provided with a frame
On the edge of the frame 12 and within the outer diameter of the frame 12,
Don't put it out. See each figure.

The lid 11 hinged to the frame 12 in this manner has a structure that can be turned substantially horizontally. That is, as shown in FIG. 5, the hinge member 13 has a shaft support 18 that is supported on the periphery of the lower surface of the lid 11 by a horizontal shaft 17 provided in a substantially horizontal direction. The upper part of the hinge member 13 is rotatably attached to the upper part of the hinge member 13 by the longitudinal axis 19 in the part.

In the example shown in FIG. 5, a bolt 31 is used as the vertical axis 19, and its male thread is inserted into the hinge member 1 through the through hole 28.
The nut is passed through a vertical hole 29 provided at the upper end of the nut 3 and is attached to a nut holding portion 30 immediately below the nut. Note that the nut holding portion 30 is engaged with two parallel surfaces of the nut, and exhibits a detent effect. Hinge member 1
The structure for pivotally supporting the lid 11 with respect to 3 is not limited to the example of FIG. FIG. 6 shows that the vertical axis 19 is integrally cast on the upper end of the hinge member 13 to a size slightly higher than the thickness of the shaft support 18, and this is passed through a through hole 28 of the shaft support 18, and integrally formed on the upper end of the vertical axis. A nut is screwed into the formed male screw part 33 as a stopper 34. Reference numeral 35 denotes a washer. In any of the examples, spacers 36 may be interposed as necessary in the rotary sliding portion.

The thus constructed lid receiving frame A of the present invention
Is installed on a foundation B via a seat C, and the periphery is hardened by a pavement D such as asphalt or concrete,
To protect other structure 10 that is in the construction stage in a relatively shallow position (FIG. 7). When the lid is opened, the lid 11 is pulled up to above the frame body 12, and the opening 20 is opened by pivoting substantially horizontally about the longitudinal axis 19, and when the lid is closed, the operation is reversed. Only move inward and upward along the line, there is no possibility of contact with other structures 10 at all. The same applies to the case where the lid 11 is inverted.

[0019]

Since the present invention is constructed and operates as described above, the lid 11 is opened in a reversing type and a revolving type.
It can, and the lid 11 can be prevented binding lost or damaged frame 12 by a hinge mechanism 15, not only the frame body hinge member 13 of the hinge mechanism 15 during the lid opening or when closing Since the projections hardly need to be projected and the projection amount does not change much, there is no danger of contacting even if other structures are installed shallowly inside the frame body 12, so that an effect that the protection can be suitably performed can be obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view showing one embodiment of a lid receiving frame for an underground structure according to the present invention.

FIG. 2 is a plan view showing the frame of the above.

[Figure 3] Similarly to decompose the main part shows to a perspective view.

FIG. 4 is an enlarged sectional view of a main part of FIG. 1;

FIG. 5 is a cross-sectional view showing an example of a swivel structure of the lid.

FIG. 6 is an exploded perspective view showing another example of the turning structure.

FIG. 7 is a sectional view showing an installation state.

Claims (5)

(57) [Claims] 1. A underground structures lid receiving frame joined by a hinge mechanism the lid to the frame body, during lid opening, and the outer lid 11 from the frame 12, elongated in the direction of moving to the inverting A hinge member 13 that is curved and pivotally supported at its upper end on the periphery of the lower surface of the lid, and engages with the hinge member 13 to keep the open lid 11 coupled to the frame 12, which itself is on the side of the frame. A hinge mechanism 15 is formed by the engaging means 14 provided on the frame 12 and the engaging means 14 is guided to move the hinge member 13 from inside to outside of the frame 12 when the lid is closed. Is installed near the inner peripheral surface of the frame member, and a recess 16 is provided outward from the inner peripheral surface of the frame body 12 as a space for moving the hinge member 13 ,
Further, in order to make the lid 11 pivotable in a substantially horizontal posture.
A cover receiving frame for an underground structure, wherein an upper end portion of the hinge member 13 is rotatably provided around a vertical axis 19 . 2. The hinge member 13 has a shaft support 18 that is supported by a substantially horizontal axis 17 on the lower surface periphery of the lid 11 so that the lid 11 can be turned around a substantially vertical axis. The shaft support 18 is attached to the upper end of the hinge member 13 by the vertical axis 1.
2. The underground structure lid receiving frame according to claim 1, wherein the underground structure lid supporting frame is pivotally supported via the support. 3. The hinge member 13 is mounted on a substantially horizontal axis 17.
Therefore, a shaft support 18 is provided to support the periphery of the lower surface of the lid 11.
2. The underground structure according to claim 1, wherein the bent portion has a curved shape substantially along a movement path extending downward from the inside of the frame body to the inside of the opening by protruding into the opening. Lid support frame. 4. A bolt 31 is used as the vertical axis 19, and
The external thread is passed through the through hole 28 in the vertical direction of the shaft bracket 18.
It passes below the vertical hole 29 provided at the upper end of the hinge member 13.
Then, attach the nut placed on the nut holding part 30 immediately below.
2. The underground structure lid receiving frame according to claim 1, wherein said retaining frame is a retaining structure. 5. The recess 16 has an inner space der the cover portion 27 provided on the outside of the frame 12 so as to surround the movement path of the hinge member 13 is, the outer diameter of the cover portion 27 is a frame 12 Fit in
Underground construction for the lid receiving frame as in claim 1 wherein that having a magnitude.