JPH0720330U - Surface-mounted square iron lid - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] A rectangular cylindrical frame body in which a horizontal supporting piece is projected over the entire inner surface of the frame and a horizontal supporting piece mounted on the horizontal supporting piece of the frame body to be opened in the frame body. In a surface-installed rectangular iron lid including a lid to be fitted, the lid fitted to a frame does not rattle, and the lid can be easily opened. [Structure] A terrestrial surface comprising a rectangular cylindrical frame body 1 in which a horizontal support piece 3 is projected over the entire circumference of an inner surface, and a lid 2 placed on the horizontal support piece of the frame body and fitted into an opening of the frame body. In the installed square iron lid, a bar hole 5 for prying the lid is engraved on the side surface of the lid, and the side surface having the bar hole of the lid and the side surface opposite to the side surface of the bar hole are formed on the downward slope 6. The other surface is formed on the vertical surface 9, the inner surface of the frame that fits the downward slope of the lid is formed on the vertical surface or the upward slope, and the inner surface of the other frame is formed on the vertical surface. A square iron cover was installed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a square iron lid installed on the surface, more specifically, to a lid that opens and closes a frame easily and easily.

[0002]

[Prior art]

 The surface-installed rectangular iron lid is composed of a rectangular cylindrical frame body that projects a horizontal support piece over the entire circumference of the inner surface, and a lid that is placed on the horizontal support piece of the frame body and fits into the opening of the frame body. . This square iron lid installed on the surface is installed on the surface of the earth and stores fire hydrants and water taps, but the lid is supported by the horizontal support piece and the inner surface of the opening, but the lid moves inside the frame. Since the rattling may occur or the rattling may occur, the side surface of the lid is formed as a downward slope over the entire circumference to prevent the lid from rattling and rising, and the inner surface of the frame also contacts the downward slope of the lid. It is formed with an upward slope so that it touches, and the lid is bited into the frame body to support it so that it does not move.

[0003]

[Problems to be solved by the device]

 In order to prevent the lid from moving inside the frame, the side surface of the lid is formed as a downward slope, and the inner side surface of the frame is formed as an upward slope to prevent the lid from biting into the frame and preventing the lid from moving. In the case of the lid, there is a problem that it is difficult to open the lid when it is necessary to open it in an emergency.

[0004]

[Means for Solving Problems]

 Therefore, in order to prevent the lid fitted on the frame body from loosening and to open it easily, the rectangular cylindrical frame body with the horizontal support piece protruding over the entire circumference of the inner surface and the horizontal frame of the frame body are provided. In a square iron lid installed on the surface that is placed on a support piece and fits into the opening of the frame, a bur hole for prying the lid is formed on the side surface of the lid, and the side with the bur hole of the lid is engraved. This burl hole forms the side facing the side face on the downward slope, the other side on the vertical face, and the inner side of the frame that fits with the downward slope of the lid is the vertical face or the upward slope. A rectangular iron cover installed on the surface was formed by forming the inner surface of the other frame into a vertical surface.

Further, in the present invention, in order to prevent the rattling sound of the lid, a rectangular iron lid installed on the surface provided with a cushioning material such as rubber or resin at four corners or the entire circumference of the supporting portion of the lid of the frame body. did.

[0006]

[Action]

 According to the present invention, when the burr is inserted into the burr hole and the lid is pry open, the side surface of the cover on the side of the burr hole and the side surface opposite thereto are formed as a downward slope, and the inner surface of the corresponding frame body is a vertical surface or The lid is easily opened because it is formed on an inclined surface, and the other side surface of the lid and the other inner side surface of the frame body are both formed as vertical surfaces.

Further, in the present invention, since the cushioning material is provided at the four corners or the entire circumference of the support portion of the lid of the frame, the rattling sound of the lid is prevented.

[0008]

【Example】

 The present invention will be described in detail below based on specific embodiments shown in the accompanying drawings. FIG. 1 is a plan view of a square iron lid installed on the surface, which is made of cast iron and is the same as a rectangular frame 1 in a plan view. A rectangular lid 2 made of cast iron and fitted in a plan view is fitted into an opening of the frame 1. Shows the combined state. 2 and 3 are longitudinal sectional views before fitting the lid 2 to the frame body 1.

The frame body 1 is a quadrangular cylindrical body in which the horizontal support piece 3 is projected over the entire circumference of the inner surface. The lid 2 is placed on the horizontal support piece 3 of the frame 1 and fitted into the opening of the frame 1. In order to open the lid 2 from the frame body 1, a burl hole 5 is formed in the center of one side surface (long side in the illustrated example) of the square lid 2 so that the burl can be inserted. As shown in FIG. 3, the side surface of the lid 2 on which the burl hole 5 is formed is formed into a slope (hereinafter referred to as a “downward slope”) whose diameter is reduced as it goes downward. The side surface having the burl hole 5 is formed on a downward slope 6 of about 8 to 10 degrees, and the side surface (long side) where the burl hole 5 faces the side surface is also formed on the downward slope 6. The other side surface (short side) of the lid 2 is formed on the vertical surface 7 as shown in FIG. 2, and the lower portion of the vertical surface 7 is formed so that it can be easily fitted to the inner surface of the opening of the frame 1. The fitting guide 8 having a downward slope with the corners removed is formed.

The position of the frame 1 from the upper surface of the horizontal support piece 3 is set so that the upper surface of the frame 1 and the upper surface of the lid 2 are aligned when the lid 2 is fitted into the opening of the frame 1. . The inner side surface of the frame 1 that fits with the lid 2 is formed as a vertical surface 9 as shown in FIGS. 2 and 3. However, the inner surface of the frame 1 corresponding to the downward slope 6 of the lid 2 is reduced in diameter by going up and down about 8 to 10 degrees so that the downward slope 6 can be supported by the slope. It can be formed on a slope.

The lid 2 is fitted into the frame body 1 while keeping the lid horizontal. The gap between the fitted lid 2 and frame 1 is set to a minimum and set to 1 mm or less. When the lid 2 is fitted into the opening of the frame body 1, it is fitted while being guided by the fitting guide 8, so that the lid 2 can be fitted easily. When installing this surface-installed rectangular iron lid on a roadway, it is possible to prevent the lid 2 from jumping up by arranging the vertical surface 7 of the lid 2 so as to be orthogonal to the traveling direction of the vehicle. The lid 2 is unlikely to be lifted in a completely horizontal position.

When attempting to open the lid 2 fitted in the opening of the frame body 1, it is obvious from the vertical surface 7 of the lid body 2 that the inner side surface of the frame body 1 is also formed as the vertical surface 9, so that FIG. When you try to open the lid 2 as shown in, it does not open. However, when the downward slope 6 of the lid 2 is inserted, that is, when the burl is inserted into the ball hole 5 and the lid 2 is pryed open, the lid 2 is easily opened because the side surface is formed as the downward slope 6.

A cushioning material 11 may be used to prevent the lid 2 from rattling. A cushioning material 11 having elasticity such as rubber or resin is attached to the support portion of the lid 2 on the frame body 1, the upper surfaces of the horizontal support pieces 3 at the four corners, and the vertical surface 11 as shown in FIG. It is provided by pouring or if necessary over the entire circumference. A resin having high wear resistance and high strength is provided as a cushioning material 11 in the lid receiving portion. By providing the cushioning material 11 on the upper surface and the vertical surface 9 of the horizontal support piece 3 and adjusting the thickness thereof, the degree of tightening of the lid 2 by the frame 1 can be strengthened and the lid 2 can be prevented from moving. Since the lid 2 is supported by the horizontal support piece 3, no matter how strongly the lid 2 is tightened, the lid 2 does not bite and become difficult to open. Further, even if the degree of tightening of the lid 2 is small and there is rattling, the shape of the lid 2 is such that the contact portion between the lid 2 and the horizontal support piece 3 of the frame 1 is only the portion having the cushioning material 11. By forming the metal, there is no metal contact, so it is hard to make noise and it does not cause noise.

[0014]

[Effect of device]

 As described above, the present invention includes a rectangular cylindrical frame body in which a horizontal supporting piece is projected over the entire circumference of the inner surface, and a lid which is placed on the horizontal supporting piece of the frame body and fits into the opening of the frame body. In the surface-installed rectangular iron lid, a bar hole is formed on the side surface of the lid for prying up the lid, and the side surface of the lid with the bar hole and the side surface facing the side surface of the bar hole are inclined downward. The other side is formed as a vertical surface, the inner surface of the frame that fits the downward slope of the lid is formed as a vertical surface or the upward slope, and the inner surface of the other frame is formed as a vertical surface. Since it is a square iron lid installed on the surface, the lid fitted to the frame does not rattle, and moreover, the lid can be easily opened.

In addition, in the present invention, in order to prevent rattling noise of the lid, a square-shaped square iron installed on the surface, which is provided with cushioning material such as rubber or resin at four corners or the entire circumference of the support portion of the lid of the frame body. Since it is a lid, it is possible to prevent rattling of the lid.

[Brief description of drawings]

FIG. 1 is a plan view of a square iron cover installed on the surface according to a specific embodiment of the present invention.

FIG. 2 is a longitudinal cross-sectional view in the longitudinal direction of FIG. 1 before fitting a lid to a frame body.

FIG. 3 is a longitudinal cross-sectional view in the lateral direction of FIG. 1 before fitting a lid to a frame body.

FIG. 4 is a vertical cross-sectional view showing a state in which the surface-mounted square iron lid of FIG. 1 does not open in the longitudinal direction.

5 is a vertical cross-sectional view showing a state where the surface-installed square iron lid shown in FIG. 1 is easily opened in the lateral direction.

FIG. 6 is a perspective view showing a state where cushioning materials are provided at four corners of the frame body.

FIG. 7 is a vertical cross-sectional view showing an example in which a cushioning material is provided on a frame when the side surface of the lid is formed to be a vertical surface.

FIG. 8 is a vertical cross-sectional view in which the side surface of the lid is formed to be a downward slope and a cushioning material is provided on the upper surface of the horizontal support piece of the frame body.

[Explanation of symbols]

 3 ... Horizontal support piece 1 ... Frame body 2 ... Lid 5 ... Bar hole 6 ... Downward slope 7 ... Vertical surface 8 ... Fitting guide 9 ... Vertical surface 11 ... Buffer material

Claims (2)

[Scope of utility model registration request] 1. A surface installation comprising a rectangular cylindrical frame body having a horizontal support piece projecting over the entire circumference of an inner surface, and a lid which is placed on the horizontal support piece of the frame body and fitted into an opening of the frame body. In a square iron lid, a burr hole for prying up the lid is engraved on the side surface of the lid, and the side surface with the burl hole of the lid and the side surface opposite to the side surface of this burr hole are formed in a downward slope, On a vertical surface, the inner surface of the frame that fits the downward slope of the lid is formed on the vertical surface or the upward slope, and the inner surface of the other frame is formed on the vertical surface. lid. 2. The surface-installed square iron lid according to claim 1, wherein a cushioning material such as rubber or resin is provided at four corners or the entire circumference of the support portion of the lid of the frame.