JP3246985B2 - Underground lid - 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 for an underground buried object, and more particularly to an improved cover for an underground buried object.

[0002]

2. Description of the Related Art Hitherto, such a lid for an underground buried object is provided with a hinge between a frame and a lid, and the lid can be opened and closed via the hinge. The hinge is provided with a ring-shaped member on the upper inside of the frame, and the lid is provided with a projecting piece inserted into the ring-shaped member.

By the way, in the lid for underground buried objects, a ring-shaped member of a hinge protrudes from an upper portion inside a frame body.
There were inconveniences that hindered the entry and exit of objects into and out of the manhole and workers.

In order to solve such inconveniences, the present applicant has previously described the technique shown in FIGS.
We have proposed a lid for an underground buried object provided with a connection portion having no protrusion at the upper inside of the frame (Japanese Patent Application No. 5-163085).

[0005] The lid for underground buried objects according to the above proposal is a lid 1
The upper surface of the frame 10 is provided so as to coincide with the ground (road surface) G, and the lid 1 is fitted into the opening 10a of the frame 10 having a tapered surface. Is configured.

[0006] A part of the periphery of the lid 1 is provided with a keyhole 2 into which a hook (not shown) for opening and closing the lid 1 is inserted. On the back side of the cover 1 of the keyhole 2, the cover 1
There is provided a valve cover 3 for closing the keyhole 2 in a state where is closed.

The valve cover 3 has a weight 3a, and always acts to close the keyhole 2 by rotating the valve cover 3 to the solid line position in FIG. Then, it is configured to be able to rotate to the position indicated by the two-dot chain line in FIG.

On the back surface of the lid 1 facing the valve lid 3, one end of a plastic strip-shaped flexible object 4 is provided. As shown in FIG. 11 viewed from the direction of arrow F in FIG.
A pin 4a projecting from both ends is provided in a direction orthogonal to the longitudinal direction of the cover 1, and is configured to be mounted on mounting pieces 1a and 1b integrally provided on the back surface of the lid 1. . The pin 4a is supported so as not to come off by the fixing pins 5a, 5b implanted in the mounting pieces 1a, 1b, and the lower ends of the fixing pins 5a, 5b project slightly downward. The portion is configured to abut on both side surfaces of a protruding wall forming a through hole provided in a frame body 10 described below.

The length of the long object 4 is determined so that the other end thereof protrudes through a through hole described later even when the cover 1 is opened. A stopper 6 made of a screw nut having a size that cannot penetrate the through hole is provided on the protruding side.

The recess 11 is provided on a part of the inner wall of the frame 10 and has a size such that the valve cover 3 can freely rotate. In the inner wall facing the concave portion 11, a through hole 12 is provided in the protruding wall 12 'so that the longitudinal direction of the long object 4 can move freely in the vertical direction, that is, in the vertical direction.

In order to open the lid 1 having the above configuration, a hook (not shown) is inserted into the keyhole 2 and the pivot 1 is rotated about the through hole 12 as a fulcrum. At this time, the lid 1 is composed of the frame 10 and the long object 4.
The lid 1 is detached from the frame 10 because
Will not dissipate.

In order to close the lid 1, the lid 1 is rotated in the opposite manner to the above. At this time, since the elongated body 4 does not bend in the width direction, the elongated body 4 of the lid 1 is not bent. Automatically becomes the position facing the through-hole 12, and finally the fixing pins 5a,
The lower end of 5b abuts on both sides of the protruding wall 12 '. Therefore, the lid 1 is positioned at the predetermined position of the frame 10 and closed, so that the position of the valve lid 3 coincides with the concave portion 11 and the rotation of the valve lid 3 is not hindered. .

The lid for underground buried objects according to the above proposal does not obstruct an object or the like because there is no protrusion in the manhole, and the lid 1 is positioned by the elongated object 4 and the frame 1
It has an excellent effect of being fitted to zero.

However, the attachment of the long object 4 to the lid 1 is performed by using the fixing pins 5a and 5b.
There was a drawback that required machining for insertion of a and 5b.

[0015]

That is, the fixing pin 5
The holes for inserting the holes 5a and 5b require precise machining so that the fixing pins 5a and 5b can be pressed and held, and require assembling work such as press-fitting the pins 5a and 5b. There was a drawback to be high.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and has as its object to provide an underground buried object capable of attaching a long object to a lid without requiring machining. To provide a lid.

[0017]

According to the present invention, there is provided a lid for an underground buried object, which is provided with a flexible long object provided on the back surface of a lid having one end facing a keyhole. And a through-hole provided on the inner wall of the frame facing the long object, and a through hole provided so that the long object can be movably inserted in the vertical direction. A pair of pocket portions provided on the lower surface of the lid, the pair of pocket portions being provided on the lower surface thereof for receiving and supporting pins protruding from both sides of the long object from the openings. Is provided in one of the pockets,
Communicate with the opening provided in one of the pockets,
And an auxiliary opening located inside the lid, a rib provided with a gap between the auxiliary opening and at least the pin, and a rib provided at the rib facing the auxiliary opening, And a hole for setting a fixture so that the pin does not deviate from the auxiliary opening. Further, a projection is provided below the pair of pockets, the projection being in contact with a side surface of a projection wall provided on the frame. Further, the frame body is provided with protrusions that respectively contact the side surfaces of the pair of pocket portions. In addition, the lower part has a cylindrical part inserted into the opening of the frame, and has a protruding piece that comes into contact with a side surface of the protruding wall provided on the frame, and the upper part has the insertion part of the lid. Having an opening to be provided, and a raised frame having projections respectively abutting on the side surfaces of the projection provided on the lid, characterized in that it is interposed between the frame and the lid. I have. In addition, a lower portion has a cylindrical portion inserted into the opening of the frame, and has a projecting piece that comes into contact with a side surface of a projecting portion provided on the frame, and the lid is inserted into the upper portion. And a raised frame having projections respectively abutting on the side surfaces of a pair of pockets provided on the lid, and being interposed between the frame and the lid. And

[0018]

In the above construction, the long pin is inserted and supported in each of the pockets, and the pin is prevented from deviating by the fixing tool provided in the hole. Also,
The projections respectively contact both sides of the projecting wall of the frame to position the lid and the frame. Further, the raised frame provided between the lid and the frame intervenes while being positioned between the lid and the raised frame and between the raised frame and the frame.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. The same components as those in FIGS. 10 and 11 are denoted by the same reference numerals, and the description of these components will be repeated, so that only the new portions will be denoted by different reference numerals.

FIG. 1 is a longitudinal sectional view of a lid for an underground buried object according to one embodiment, and FIG. 2 is a sectional view taken along line AA of FIG.

The pair of pockets 20a and 20b are
Is provided on a part of the periphery of the lower surface of the
0a ', 20b') and both openings 20a ', 2b
The interval between 0b 'is kept slightly larger than the width of the long object 4. The pockets 20a and 20b are configured to support both sides of a pin 4a provided at the upper end of the elongated object 4 shown in a perspective view in FIG.

Referring to FIGS. 4 to 7, pocket portions 20a,
The structure of the portion 20b will be described. FIG. 4 is a rear view of the pair of pocket portions 20a and 20b of the lid 1, as viewed from the back side.
5 is a sectional view taken along line BB of FIG. 4, FIG. 6 is a sectional view taken along line CC of FIG. 4, and FIG. 7 is a sectional view taken along line DD of FIG.

The pair of pockets 20a and 20b are formed with pockets 20a and 20b using a part of a rib 21 for securing the strength of the lid 1. Of these pair of pockets 20a, 20b, one pocket 20a is formed in a bag shape in which only the surface facing the opening 20b 'of the other pocket 20b is open.

The other pocket 20b has an opening (20b ″) on the inner surface (lower surface in FIG. 4) of the lid 1 in addition to the surface facing the opening 20a ′ of the one pocket 20a. The opening 20b "corresponds to the auxiliary opening of the present invention.

The opening 2b "is opposed to the opening 20b".
0b ", the pins 4a can be inserted, and the ribs 21 provided at intervals so that the nuts to be described later can be inserted into the ribs 21 are large enough to insert the bolts 22 of the bolts and nuts which are the fixtures of the present invention. An open hole 23 is provided, and this hole 23 is opened using a core when casting the lid 1.

The length of the bolt 22 inserted into the hole 23 is
When the bolt 22 is inserted from the inside of the lid 1, the tip is determined to reach the position of the opening 20 b ″.
Therefore, the nut 2 is attached to the bolt 22 inserted into the hole 23.
4 is fixed to the rib 21 by screwing, the opening 20b ″
, Just like the pocket 20a, only the surface of the opposing pocket is opened. (See FIG. 7).

To attach the long object 4 to both pocket portions 20a and 20b, first remove the bolt 22 from the rib 21 and insert one end of the pin 4a into the pocket 20a. Next, the other end of the pin 4a is inserted into the pocket portion 20b through the opening portion 20b ″ of the pocket portion. Then, the bolt 22 is inserted into the hole 23 of the rib 21 and the nut 24 is screwed into the bolt 22. This prevents the pin 4a from being inserted into and removed from the pocket portions 20a and 20b.

Projections 25a and 25b are provided at the lower portion (the upper portion in FIGS. 4 to 7) of the lower wall surface forming each of the pocket portions 20a and 20b. The interval between the projections 25a and 25b is determined so as to be in contact with both side surfaces of the projection wall 12 'provided on the frame 10.

Therefore, when the cover 1 is fitted to the frame 10, the cover 1 is first guided by the long object 2, and then the two projections 25a and 25b are provided on both sides of the protruding wall 12 '. The lid 1 and the frame 10 can be reliably positioned at predetermined positions in contact with each other.

FIGS. 8 and 9 show a raised frame 30 for adjusting the height between the lid 1 and the frame 10 when the ground G becomes higher than a predetermined level due to road construction or the like. Is shown in the figure.

The raised frame 30 is provided with a cylindrical portion 30 'having a tapered surface corresponding to the opening 10a of the frame 10 on the outer periphery of the lower portion, and the cylindrical portion 30' is fitted into the opening 10a. And an opening 30a having the same tapered surface as the opening 10a in the upper inner periphery. Therefore,
The lid 1 is similar to the opening 10 a of the frame 10,
It can fit into the opening 30a. A recess 31 similar to the recess 11 of the frame 10 is provided in a portion where the valve cover 3 is located, so that the valve cover 3 can be freely rotated.

As shown in FIG. 9 as viewed from the direction of arrow E in FIG. 8, a pair of inner walls opposing the recess 31 is provided so as to sandwich both side surfaces of the projections 25a and 25b provided on the lid 1. The projections 32a and 32b are provided, and the lower ends of the projections 32a and 32b
A pair of projecting pieces 33a, 33b are provided so as to straddle both side walls of the projecting wall 12 'provided with the two.

When the raised frame 30 is provided, the length of the long object 4 must be longer by the height of the raised frame 30. Set it in the hole below 4.

The raised frame 30 is connected to the frame 1 with both projecting pieces 33a and 33b straddling both side walls 12 'of the through hole 12.
By placing the frame at 0, the raised frame 30 and the frame 10 can be positioned. Further, the protrusions 25a, 25b abut against the inner surfaces of the protrusions 32a, 32b, thereby forming the cover 1
And the raising frame 30 is also positioned.

Since the raised frame 30 does not have any protrusions on the inside, it does not hinder the entry and exit of objects and the like, and the lid 1 is guided by the elongated body 4 to be positioned at a predetermined position and closed. be able to.

In the above-described embodiment, the projection 2 is attached to the lid 1.
Although the protrusions 5a and 25b are provided, the protrusions may be provided on the frame body 10 and positioned so as to abut against both side surfaces of the pocket portions 20a and 20b of the lid 1 respectively. Therefore, when the projections are provided on the frame body 10 in this manner, the raised pieces are provided on the raised frame body 10 with the projections abutting on both side surfaces of the projections, and the projections abutting on the both side surfaces of the pair of pockets. Provided.

[0037]

According to the present invention, the lid for underground buried object is provided on the lower surface of the lid body which is open at opposite surfaces and receives and supports the pins projecting from both sides of the long object from the openings. A pair of pockets, and an auxiliary opening provided in one of the pair of pockets, communicating with an opening provided in the one of the pockets, and located inside the lid. A rib provided at least with an interval for inserting a pin between the auxiliary opening and a hole provided on a rib facing the auxiliary opening to set a fixture so that the pin does not deviate from the auxiliary opening. The long object can be easily attached to the lid. Further, when a projection is provided on the lid or the frame, the lid and the frame can be accurately positioned and set. Further, when a raised frame is interposed between the frame and the lid, even if the ground becomes high due to road construction or the like, it can be easily dealt with.

[Brief description of the drawings]

FIG. 1 is a sectional view of a lid for an underground buried object according to one embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a perspective view of an upper portion of a long object.

FIG. 4 is a rear view of the lid of the pocket portion.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

FIG. 6 is a sectional view taken along line CC of FIG. 4;

FIG. 7 is a sectional view taken along line DD of FIG. 6;

FIG. 8 is a cross-sectional view when a raised frame is interposed between the lid and the frame.

FIG. 9 is a side view as seen from the direction of arrow E in FIG. 8;

FIG. 10 is a sectional view of a lid for an underground buried object according to the previous proposal.

11 is a side view as seen from the direction of arrow F in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Lid 2 Keyhole 3 Valve lid 4 Long object 6 Stopper 10 Frame 12 Through hole 12 'Projecting wall 20a, 20b Pocket 20a', 20b ', 20b "Opening (20b" auxiliary opening) 21 Rib 22 Bolt ( Fixture) 23 hole 24 Nut (fixture) 25a, 25b Projection 30 Raising frame 30 'Tube 32a, 32b Projection 33a, 33b Projection piece

──────────────────────────────────────────────────続 き Continued from the front page (56) References JP-A-7-34476 (JP, A) Japanese Utility Model Showa 57-137665 (JP, U) Japanese Utility Model Showa 60-148363 (JP, U) Japanese Utility Model Showa 61- 155440 (JP, U) JP-A-3-119050 (JP, U) JP-B-54-20308 (JP, B1) (58) Field surveyed (Int. Cl. ⁷ , DB name) E02D 29/14

Claims (5)

(57) [Claims] 1. A flexible elongate object provided on the back surface of a lid whose one end is opposed to a keyhole, and a flexible elongate object provided on an inner wall of a frame opposed to the elongate object, wherein the elongate object is vertical. In a lid for an underground buried object provided with a connecting portion consisting of a through hole movably insertable in a direction, the opposing surfaces are opened together, and pins projecting from both sides of the elongated object from the openings. And a pair of pocket portions provided on the lower surface of the lid, and an opening provided in one of the pair of pocket portions and provided in one of the pocket portions. An auxiliary opening that is in contact with and is located inside the lid, a rib that is provided with an interval at which the pin can be inserted between the auxiliary opening and the rib that faces the auxiliary opening; From the auxiliary opening. Underground installations lid, characterized in that it comprises but a hole to set the fixture so as not to deviate, the. 2. The underground buried object cover according to claim 1, wherein projections are provided below the pair of pockets so as to abut against side surfaces of the projection walls provided on the frame. 3. The lid for underground buried objects according to claim 1, wherein projections are provided on the frame body so as to abut against side surfaces of the pair of pocket portions. 4. A lower part having a cylindrical part inserted into an opening of the frame, a projecting piece abutting on a side surface of a projecting wall provided on the frame, and a lid being inserted into an upper part. And a raised frame having projections respectively abutting on the side surfaces of the projections provided on the lid, which is interposed between the frame and the lid. 3. The lid for underground buried objects according to claim 2. 5. A lower portion having a tubular portion inserted into an opening of the frame, a projecting piece abutting on a side surface of a projecting portion provided on the frame, and an insertion of a lid at an upper portion. And a raised frame having projections respectively abutting on the side surfaces of a pair of pockets provided in the lid, between the frame and the lid. The underground cover according to claim 3, characterized in that: