JP3015778U - Mounting structure for lid - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a mounting structure for a lid that allows the lid to be opened and closed easily and securely, does not require bolts, and is excellent in workability and economy. . [Structure] A structure in which a box lid 10 is attached to a receiving frame 30 embedded in concrete C so as to be openable and closable, and long tube portions 22 projecting outward are provided at rear portions of both side plates 11 of the box lid. 22 is formed, and projections 40, 4 that are rotatably and movably accommodated in the long tubular portion are provided at positions corresponding to the long tubular portion of the side plates 31, 31 of the receiving frame.
0 is formed respectively.

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. 10 and FIG. 11 show a conventional example of such a lid attachment structure. In both figures, reference numeral 50 is a box lid, 51 is a frame plate of the box lid 50, and crosspieces 52 (also referred to as main members 52a and twist bars 52b) are formed in a lattice shape as shown. 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 for receiving 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 box lid 50 is dropped into the receiving frame 53 and is fixed to the receiving frame 53 by bolts 56 or the like on all four sides. Reference numeral 57 is a screw hole into which the bolt 56 is screwed. At this time, as shown in the drawing, a notched portion 58 obtained by cutting off a part of the crosspiece 52 is provided at a predetermined position of the frame plate 51 so that the fixing work by the bolt 56 such as insertion of a spanner or a bolt can be easily performed. 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. 11, it may be required to fit a 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 it is not always satisfactory because it is damaged or eventually comes off and is 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 was proposed in order to solve such a problem, and with a very simple structure, the box lid can be easily and securely attached so that it can be freely opened and closed. 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. Long tubular portions are formed, and protrusions that are rotatably and movably housed in the long tubular portions are formed at the positions corresponding to the long tubular portions on both side plates of the receiving frame. It is characterized by being

[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 the mounting structure of the lid of the present invention, FIG. 2 is a sectional view showing a state in which the lid is attached to a receiving frame, a part of which is omitted, and FIG. Schematic cross-sectional view, FIG. 4 is a cross-sectional view taken along line 5-5, FIG. 5 is a cross-sectional view showing an initial state of opening the lid, and FIG. 6 is a cross-sectional view showing a state where the lid is further opened. 7 is a cross-sectional view showing the opened state of the lid, FIG. 8 is a schematic perspective view showing the relationship between the long tubular portion of the lid and the protrusion of the receiving frame, and FIG. It is a figure.

As shown in FIGS. 1 and 2, the box lid 10 is formed into a predetermined lid shape by the side plates 11, 11 and 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. .

Long tube portions 22, 22 are formed at the rear portions of both side plates 11, 11 of the lid 10, respectively. The long tube portion 22 is an oval-shaped tube body in a side view that protrudes outward from the both side plates 11, 11, and the projecting portions 40, 40 of a receiving frame 30, which will be described later, can be easily accommodated therein, respectively, and are sufficiently internal. It has a diameter and a depth that allow it to be rotated. The long tubular portion 22 of this embodiment is fixed to the rear portions of the side plates 11 by welding.

On the other hand, the receiving frame 30 is formed by the side plates 31, 31, the front plate 32, and the rear plate 33 into a frame shape into which the box lid 10 can be inserted and removed, and is embedded in the concrete C in advance as shown in FIG. Can be kept. As a result, the concrete C is hardened together with the receiving frame 30 and the curing of the concrete C is completed, and then the box lid 10 can be attached. Reference numeral 34 is a receiving plate portion for receiving the box lid 10, and 35 is an anchor portion.

In the receiving frame 30, the side plates 31 and 31 corresponding to the side plates 11 and 11 of the box cover 10 are provided with protrusions 40, at positions corresponding to the long tube portions 22 and 22 of the box cover 10. 40 are provided. The protrusion 40 is a protrusion protruding inward from the side plate 31 of the receiving frame 30. When the box lid 10 is attached to the receiving frame 30, the protrusion 40 is provided inside the long tubular portion 22. It is rotatably and movably accommodated. The shape of the protrusion is not particularly limited as long as it can rotate and move within the long tubular portion 22, and may be a prism or a cylinder having an appropriate width (or diameter) and height.

In the box lid 10 and the receiving frame 30 having the above structure, the box lid 10 is supported by the protrusion 40 of the receiving frame 30 housed in the long tubular portion 22, and the length of the protrusion 40 is increased. The lid 10 is configured to open and close freely by freely rotating and moving in the tubular portion 22.

For example, when the lid 10 is opened, as shown in FIGS. 4 to 7, the lid 10 moves around the protrusion 40 around the protrusion 40 as indicated by arrows B to C, and further D. To the rear side of the receiving frame 30. Along with the rotation, the protrusion 40 sequentially moves from the position of 40A to the position of 40B in the long tubular portion 22 and further from the position of 40C to the position of 40D from the upper side to the lower side. The lid 10 is opened with a very small turning radius while appropriately shifting the turning axis of the lid 10. On the contrary, when the lid 10 is closed, the lid 10 rotates around the protrusion 40 toward the front side of the receiving frame 30, and the protrusion 40 moves upward from a lower position in the long tubular portion 22. By moving to the position, the lid 10 is closed with a small turning radius.

When the long tubular portion 22 is formed in an inclined shape with the rear side being the upper side as in this embodiment, as shown in FIG. 4 to FIG. Since the long tubular portion 22 exists in the moving direction during the movement, the movement of the protrusion 40 in the long tubular portion 22 becomes smoother, and the opening and closing of the box lid 10 becomes faster and easier. Further, in this example, when the projecting portion 40 of the receiving frame moves to the lowermost portion (position 40D shown in FIG. 7) in the long tubular portion 22 of the box lid, the projecting portion 40 moves to the inner peripheral surface of the long tubular portion 22. In addition to abutting, the upper portion 14a of the rear plate 14 of the box lid comes into contact with the upper surface 34a of the bottom plate 34 of the receiving frame, so that the box lid 10 can be fixed at a constant angle N (110 ° in this example). Is configured.

Further, in this embodiment, as is well understood from FIG. 8, side plates 31 of the receiving frame 30 are provided with holes 32, respectively, and the bosses 41 with flanges are inserted into the holes 32. A protrusion 40 is formed so as to protrude inwardly by being fixedly inserted. The flanged boss 41 is formed longer than the thickness of the side plate 31 in order to project from the inner peripheral surface of the side plate 31 of the receiving frame 30. Of course, the protrusion 40 can be formed by pressing the both side plates 31, 31 of the receiving frame 30 in advance.

Next, a method of attaching the box lid 10 of the present invention will be described. First, as shown in FIG. 9, with the projecting portion 40a of the receiving frame 30 previously embedded in the concrete C being housed in the long tubular portion 22a of the box lid 10, the box lid 10 is placed on the receiving plate portion 34 of the receiving frame 30. , 34. At this time, since the long tubular portion 22a is provided so as to project from the side plate 11a, it is easy for the operator to recognize the existing position of the long tubular portion 22a even from above, and the protruding portion into the long tubular portion 22a. The accommodation of 40a is easy and reliable.

Next, the box lid 10 is slid in the opposite direction of the projecting portion 40a so that the other projecting portion 40b of the receiving frame 30 is housed in the long tubular portion 22b provided on the other side plate 11b of the box lid 10. To do. With this accommodation, as shown in FIG. 2, the protrusions 40, 40 of the receiving frame are rotatably and movably accommodated in the long tubular portions 22, 22, respectively, and the box lid 10 can be opened and closed with respect to the receiving frame 30. Attached to.

[0020]

[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.

Further, since the long tubular portion of the cell lid projects to the outside of the side plate of the cell lid, it is easy for an operator to recognize the existing position of the long tubular portion from above, and the receiving frame is projected into the long tube portion. There is also an advantage that the parts can be easily and reliably stored.

[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 an enlarged schematic cross-sectional view of main parts of the box lid and the receiving frame shown in FIG.

FIG. 4 is a sectional view taken along line 5-5.

FIG. 5 is a cross-sectional view showing an initial state of opening the lid.

FIG. 6 is a cross-sectional view showing a state in which the lid is further opened.

FIG. 7 is a cross-sectional view showing an open state of the lid.

FIG. 8 is a schematic perspective view showing the relationship between the long tubular portion of the box lid and the protrusion of the receiving frame.

FIG. 9 is a cross-sectional view showing a mounting state of the lid with a part omitted.

FIG. 10 is a perspective view showing a general lid mounting structure.

FIG. 11 is a cross-sectional view showing another example.

[Explanation of symbols]

 10 Box Cover 11 Side Plate 22 Long Tube 30 Receiving Frame 31 Side Plate 40 Projection 41 Boss

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 long tube portions projecting outward are formed at rear portions of both side plates of the box lid. A mounting structure for a box lid, characterized in that projections that are rotatably and movably accommodated in the long tubular portion are formed at positions corresponding to the long tubular portion on both side plates of the receiving frame. 2. The mounting structure for a lid according to claim 1, wherein the long tubular portion is formed in an inclined shape with a rear portion side being an upper portion. 3. The mounting structure for a lid according to claim 1, wherein the protrusion is formed by a boss with a collar inserted and fixed in the holes of both side plates of the receiving frame.