JP3015777U - Mounting structure for lid - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a structure for mounting a lid which enables easy and reliable attachment of the lid and which does not require bolts or the like and which is excellent in workability and economy. A first protrusion 21 and a second protrusion 22 that project outward are formed at the rear portions of both side plates 11 and 12 of the lid 10, and the first protrusions of both side plates 31 and 32 of the receiving frame are formed. A first holding cylinder portion 41 and a second holding cylinder portion 42 capable of rotatably accommodating the first protrusion and the second protrusion are formed at positions corresponding to the first portion and the second protrusion, respectively. In addition, the projection of the box lid side plate corresponding to the holding tubular portion can be inserted into the tubular surface of at least one of the first holding tubular portion and the second holding tubular portion. The insertion notch 45 is formed, and the box lid is openably and closably attached to the receiving frame embedded in the concrete.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mounting structure for a lid, and more particularly to a structure for mounting a lid on a receiving frame embedded in concrete so that the lid can be opened and closed.

[0002]

[Prior art]

 Conventionally, the box lid that covers the drainage and drainage section for sewage and rainwater provided in the gutter is composed of a frame plate formed in a predetermined lid shape and a crosspiece that is hung inside the frame plate. It is attached to the receiving frame buried in the construction section so that it can be opened and closed freely for inspection and cleaning.

FIG. 8 and FIG. 9 show a conventional example of such a lid attachment structure. In both figures, reference numeral 50 is a lid, 51 is a frame plate of the lid 50, and crosspieces 52 (also referred to as main members 52a and twist bars 53b) are formed in a lattice shape as shown in the drawings. The receiving frame 53 is formed in a frame shape into which the box lid 50 can be fitted and removed, and a receiving plate portion 54 that receives the box lid 50 is provided on the lower surface, and anchor portions 55 are provided on the outer surfaces of both side portions. The receiving frame 53 may be embedded in concrete or the like in advance. The lid 50 is dropped into the receiving frame 53 and fixed on the four sides with bolts 56 or the like to the receiving frame 53. Reference numeral 57 is a screw hole into which the bolt 56 is screwed. At that time, in order to facilitate the fixing work by the bolt 56 such as insertion of a spanner or a bolt, a cutout portion 58 obtained by cutting a part of the crosspiece 52 is provided at a predetermined position of the frame plate 51 as shown in the figure. Will be needed.

However, in such a structure, there is a walking problem such as the heel of the high heel being fitted in the cutout portion 58 of the crosspiece 52, and the cutout portion 58 has small stones and dust. There was a problem that it became difficult to open and close due to clogging. Therefore, depending on the public organization that is the person in charge of enforcement, as shown in FIG. 9, it may be required to fit the cap 59 on the cutout portion 58. However, the mounting of the cap 59 as described above is not only disadvantageous in terms of cost and work, but also is not satisfactory because it is damaged or is eventually detached and lost during use. It was.

Therefore, in recent years, a structure in which a lid is rotatably attached to a receiving frame to open and close has been proposed and implemented. As one example, as disclosed in Japanese Utility Model Publication No. 6-71582, a first shaft hole and a second shaft hole are formed in the rear portions of both side plates of the box lid, and the receiving frame has one side plate with the above-mentioned holes. A fixing pin corresponding to the first shaft hole is projected inward of the receiving frame, and the other side plate is configured to be able to move in and out of the receiving frame by a spring housed in a spring receiving member corresponding to the second shaft hole. By providing the movable pin, the first shaft hole of the box lid is fitted to the fixed pin, and then the second shaft hole is fitted to the movable pin.

According to the above-mentioned structure, since the bolt is unnecessary, a cap for the bolt is not necessary, but the spring housed in the spring receiving member of the receiving frame allows the movable structure configured to freely move in and out of the receiving frame. Since it was necessary to provide pins, the structure was complicated and there were problems in terms of parts and manufacturing costs. In addition, since a protrusion is formed on the receiving frame for the spring and the spring receiving member for holding the movable pin in and out, a larger space for fixing the receiving frame to concrete is required.

[0007]

[Problems to be solved by the device]

 The present invention has been proposed to solve such a problem, and the cell lid can be easily and surely attached with an extremely simple structure, and no bolt or the like is required. The purpose of the present invention is to provide a mounting structure for the lid which is excellent in workability and economy.

[0008]

[Means for Solving the Problems]

 That is, the mounting structure of the cell lid of the present invention is a structure in which the cell lid is openably and closably attached to the receiving frame embedded in the concrete, and the rear portions of the both side plates of the cell lid respectively project outward. A first protrusion and a second protrusion are formed, and the first protrusion and the second protrusion are provided at positions corresponding to the first protrusion and the second protrusion on both side plates of the receiving frame. A first holding tubular portion and a second holding tubular portion that can be rotatably housed are formed respectively, and at least one of the first holding tubular portion and the second holding tubular portion is formed. It is characterized in that the cylindrical surface of the holding tubular portion is formed with an insertion notch into which the protrusion of the box lid side plate corresponding to the holding tubular portion can be inserted.

[0009]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing an example of a mounting structure of the lid of the present invention, FIG. 2 is a sectional view showing a state where the lid is attached to a receiving frame, a part of which is omitted, and FIG. 2 Holding A perspective view showing the cylindrical portions side by side, FIG. 4 is a perspective view showing an example of the protrusion, FIG. 5 is a sectional view showing a state in which the mounting of the box lid is completely omitted, and FIG. FIG. 7 is a sectional view showing a state in which the portion is inserted, and FIG. 7 is a sectional view showing a state in which the protrusion is completely inserted.

As shown in FIGS. 1 and 2, the box lid 10 is formed into a predetermined lid shape by the side plates 11 and 12, the front plate 13 and the rear plate 14, and a plurality of main plates are provided inside thereof. The members 15 are arranged side by side. Reference numeral 16 is a twist bar that reinforces the strength of the lid 10, and the upper surface of the lid 10 is provided orthogonally to the bridging direction of the main member 15, and the surface of the lid 10 has a lattice shape. .

A first protrusion 21 and a second protrusion 22 are formed on the rear portions of the side plates 11 and 12 of the lid 10, respectively. An example thereof is shown in FIG. The first projecting portion 21 and the second projecting portion 22 serve as a rotating shaft for opening and closing the box lid 10, and project outward from the side plates 11 and 12. Such protrusions 21 and 22 can be easily formed by preliminarily press-working the side plates 11 and 12. The shape of the protrusion is not particularly limited as long as it can be rotated, and may be a prismatic shape or a cylindrical shape having an appropriate width (or diameter) and height.

On the other hand, the receiving frame 30 is formed by both side plates 31, 32, a front plate 33 and a rear plate (back of the box lid 10; not shown) into a frame shape into which the box lid 10 can be fitted and removed, as shown in FIG. It can be embedded in concrete C in advance. As a result, the concrete C described above is hardened together with the receiving frame 30 and the box lid 10 can be attached after the curing is completed. Reference numeral 34 is a receiving plate portion that receives the lid 10, and 35 is an anchor portion.

In the receiving frame 30, a side plate 31 corresponding to one side plate 11 of the box lid 10 is provided with a first holding cylinder portion 41 at a position corresponding to the first protrusion 21 of the box lid 10. There is. The first holding cylinder portion 41 is provided so as to project inward from the side plate 31 of the receiving frame 30, and when the box lid 10 is attached to the receiving frame 30, the first protruding portion 21 is housed in a rotatable manner. You can do it.

Further, in the receiving frame 30, the side plate 32 corresponding to the other side plate 12 of the box lid 10 has a second holding cylinder portion 42 at a position corresponding to the second protrusion 22 of the box lid 10. Are provided so as to project toward the inside of the receiving frame 30. Like the first holding cylinder portion 41, the second holding cylinder portion 422 can also rotatably accommodate the second protrusion 32. In the receiving frame 30 shown in FIG. 1, the tubular portion on the front side of the figure is the first holding tubular portion 41, and the back side is the second holding tubular portion 42. As shown in FIG. 4, the first holding tubular portion 41 and the second holding tubular portion 42 are configured such that the first projecting portion 21 and the second projecting portion 22 are rotatable when the mounting of the box lid 10 is completed. It is housed and serves as a bearing for opening and closing the lid. The first holding cylinder portion 41 and the second holding cylinder portion 42 have a diameter within the cylinder in which the first protrusion 21 and the second protrusion 22 are easily accommodated and which can be sufficiently rotated inside. Have depth.

In the present embodiment, the first holding tubular portion 41 and the second holding tubular portion 42 are made of bottomed tubular members having bottom plates 43 and 44, respectively, as shown in FIG. Then, as can be understood from FIG. 2, in the side plates 31 and 32 of the receiving frame 30, at the positions where the first holding tubular portion 41 and the second holding tubular portion 42 are formed, the holding tubular portion mounting hole portions 36 and 37 are formed. Is provided, the tubular surfaces of the holding tubular portions 41 and 42 are inserted from the outside of the side plates 31 and 32 toward the inside of the receiving frame 30, and the bottom plate is fixed to the side plates by welding. It is needless to say that the length of each holding cylinder portion is made longer than the thickness of the side plate so that the holding cylinder portions 41, 42 project from the side plates 31, 32.

An insertion notch 45 is provided on at least one of the first holding cylinder portion 41 and the second holding cylinder portion 42 (in this example, the first holding cylinder portion 41). ). This insertion notch 45 is for inserting the protrusion (the first protrusion 21 in this embodiment) of the corresponding side plate when the box lid 10 is attached, and for accommodating it in the cylindrical portion thereof. It is formed into an insertable shape. Further, in this embodiment, the insertion notch 45 is provided at an obliquely upper position of the cylindrical surface of the first holding cylindrical portion 41. As a result, the box lid 10 can be efficiently attached from the upper side of the receiving frame 30.

Next, a method of attaching the box lid 10 of the present invention will be described. First, as shown in FIG. 2, one side plate of the box lid 10 is fitted by accommodating the protrusion in the holding cylinder in the receiving frame 30 previously embedded in the concrete C. The side plate is fitted first from the side plate corresponding to the holding cylinder part on which the insertion notch 45 is not formed in the receiving frame 30, and in this example, the second protrusion 22 of the side plate 12 is attached to the second holding cylinder part 42. Can be inserted. Then, the first protrusion 21 provided at the rear portion of the side plate 11 is inserted and accommodated in the first holding cylinder portion 41 provided on the other side plate 31 of the receiving frame 30. At that time, as shown in FIG. 4, the first protrusion 21 is inserted and accommodated in the second holding cylinder portion 41 via the insertion notch 45. As a result, as understood from FIG. 5, the first protrusion 21 is surely inserted into the first holding cylinder portion 41, and the second protrusion 22 is surely inserted into the second holding cylinder portion 42. Serves as a bearing for the protrusion, so that the box lid 10 can be rotatably attached to the receiving frame 30.

Further, when the box lid 10 is attached to the receiving frame 30, as can be understood from FIG. 6, the box lid 10 is inserted from diagonally above the receiving frame 30. Therefore, as described above, if the insertion cutout 45 is provided at an obliquely upper position of the cylindrical surface of the first holding cylindrical portion 41, the insertion cutout 45 opens in the insertion direction of the protrusion 21. Therefore, the mounting of the lid is easier and more reliable.

[0019]

[Effect of device]

 As shown and described above, according to the mounting structure of the box lid of the present invention, the box lid can be attached to the receiving frame to be openable and closable with a very simple structure without requiring a special member such as a bolt or a spring. . Therefore, it is not necessary to provide a notch for a bolt on the lid, and there is no fear that the heel of the shoe will be fitted, and preparation of another member such as a cap and its attaching work are unnecessary, which is extremely economical. Further, since the spring and its receiving member are not required, it is extremely advantageous economically and in terms of mounting space.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a mounting structure for a lid of the present invention.

FIG. 2 is a cross-sectional view with a part omitted showing a state in which a box lid is attached to a receiving frame.

FIG. 3 is a perspective view showing a first holding cylinder part and a second holding cylinder part side by side.

FIG. 4 is a perspective view showing an example of a protrusion.

FIG. 5 is a cross-sectional view with a part omitted showing a state in which the lid is completely attached.

FIG. 6 is a cross-sectional view showing a state in which the protrusion is inserted into the insertion notch.

FIG. 7 is a cross-sectional view showing a state in which the protrusion is completely inserted.

FIG. 8 is a perspective view showing a general lid mounting structure.

FIG. 9 is a cross-sectional view showing another example.

[Explanation of symbols]

 10 Box Cover 11 Side Plate 12 Side Plate 21 First Projection 22 Second Projection 30 Receiving Frame 31 Side Plate 32 Side Plate 41 First Holding Cylindrical Section 42 Second Holding Cylindrical Section 45 Insert Notch

Claims (3)

[Scope of utility model registration request] 1. A structure in which a box lid is openably and closably attached to a receiving frame embedded in concrete, and first and second projecting portions projecting outwardly at rear portions of both side plates of the box lid. Is formed, and the first protrusion and the second protrusion can be rotatably accommodated at positions corresponding to the first protrusion and the second protrusion on both side plates of the receiving frame. The first holding tubular portion and the second holding tubular portion are respectively formed, and the tubular surface of at least one of the first holding tubular portion and the second holding tubular portion corresponds to the holding tubular portion. A mounting structure for a lid, characterized in that an insertion notch into which the protrusion of the lid lid side plate can be inserted is formed. 2. The mounting structure for a lid according to claim 1, wherein the first holding tubular portion and the second holding tubular portion are constituted by bottomed tubular members that are inserted and fixed in holes of both side plates of the receiving frame. . 3. The box lid according to claim 1 or 2, wherein an insertion notch is formed at an obliquely upper position of a tubular surface of one of the first holding tubular portion and the second holding tubular portion. Mounting structure.