JPH0527549Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to decorative manhole covers installed in sidewalks of arcades, community plazas, parks, etc., and in particular, the present invention relates to decorative manhole covers installed in sidewalks of arcades, community plazas, parks, etc. This invention relates to a cosmetic manhole cover whose lid body is opened and closed in a horizontal pulling manner.

(Prior Art) In recent years, various types of colored blocks called interlocking blocks have become increasingly used as paving materials on the sidewalks and plazas of the above-mentioned arcades. Along with this, manhole covers installed at such locations have also been improved so as not to damage the image of the area. In other words, the lid, which is called a decorative manhole cover and is fitted into the receiving frame so that it can be opened and closed, has a generally inverted hat shape in cross section, and the recessed part of its upper surface is often filled with the same blocks as the surrounding paving material. Since the receiving frame and the lid body are usually made of cast iron, a decorative joint made of stainless steel or the like has come to be provided on the upper end surface of each to prevent the bare surface of the casting from being exposed.

An example of this will be explained with reference to FIGS. 3 and 4. In the figure, 1 is a receiving frame that is embedded and fixed to the upper edge of a manhole (not shown) so that its upper end is flush with the surrounding paved surface, and 2 is a receiving frame. It is a lid that is removably fitted into the receiving frame 1, and the receiving frame 1 and the lid 2 are made of cast iron. The lid body 2 has a substantially inverted hat shape in cross section, and has a recess formed on its upper surface for filling the same blocks 3 as the paving material described above, and the blocks 3 are placed in the recessed portion of the upper surface as much as possible. The entire lid body 2 has a rectangular shape so that it can be spread easily without any effort.
For this reason, the receiving frame 1 is also made into a rectangular shape with a quadrilateral frame shape. Furthermore, since the lid body 2 becomes quite heavy due to the arrangement of blocks 3, it is constructed so that it can be easily opened and closed by horizontal pulling.

More specifically, the receiving frame 1 has a rectangular frame shape with an inverted T-shape in cross section, consisting of a vertically rising circumferential side plate 1a and a bottom plate 1b at the lower end thereof.
A small rising edge 1c is formed on the inner peripheral edge of the bottom plate 1a, and a sealing member 4 such as a rubber gasket is fitted around the entire circumference of this rising edge 1c.
Further, a plurality of vertically rib-shaped protrusions 1d are integrally formed on the inner surfaces of two opposing sides (left and right sides in the figure) of the circumferential side plate 1a, and the upper end surface of the protrusions 1d is It is made one step lower than the upper end surface and serves as a lid receiving stepped surface 1e. Further, on the inner surfaces of the remaining two opposing sides (front and rear sides) that do not have the protrusion 1d of the peripheral side plate 1a, there are guide guides in the shape of a horizontally elongated right triangle extending from approximately the middle to near the right end side. Projection 1
f are integrally formed, and the upper surface of these guide protrusions 1f is used as a guide inclined surface 1g for horizontally pulling the lid.

On the other hand, the lid body 2 has a rectangular cross-sectional shape consisting of a rising peripheral side plate 2a and a bottom plate 2b, and a flange portion 2c is formed around the entire circumference at the upper end outer periphery of the peripheral side plate 2a, so that the cross section is generally reversed as a whole. It is shaped like a hat, and the blocks 3 serving as the paving material are filled in the concave portion of the top surface. By fitting this lid body 2 into the receiving frame 1, the lower surface of the flange portion 2c is mounted on the left and right lid receiving stepped surfaces 1e of the receiving frame 1, and the upper end surface thereof is placed within the receiving frame 1. When fitted, the lower surface of the bottom plate 2b comes into pressure contact with the sealing material 4 to maintain the closed state. Furthermore, two slide ribs 2d extending in the left-right direction are formed on the lower surface of the bottom plate 2b of the lid body 2. Furthermore, a sliding protrusion 2e is formed near the right end of the front and rear outer surfaces of the circumferential side plate 2a of the lid body 2 and protrudes downward from the bottom plate 2b. It is designed to be able to slide on the guide slope 1g of the receiving frame 1 when opening and closing.

Furthermore, a keyhole portion 2f for latching a handle for horizontal pulling is formed at two of the four inner corners of the circumferential side plate 2a of the lid body 2 on the left side in the figure, and although not shown in the drawings, a horizontal pulling handle can be inserted into the keyhole portion 2f to make a 90-degree angle. Each can be latched by rotating, and by holding this handle in your hand, pull it upward as shown by the arrow in Figure 4, and then pull it to the left in the figure (towards you as an operator) to move the lid body 2 sideways. It can be slid open or pushed back to close.

Decorative joints 5 and 6 made of stainless steel or the like are attached to the upper end surfaces of the circumferential side plates 1a and 2a of the receiving frame 1 and the lid body 2 of such a side-pull type decorative manhole cover, respectively, over the entire circumference, and the receiving frame The bare surface of the castings of 1 and the lid 2 are not exposed as they are.

(Problem to be Solved by the Invention) By the way, in the above-mentioned horizontal pulling type decorative manhole cover, each time the lid body 2 is opened and closed horizontally, the bottom of the lid body 2 touches the upper end surface of the circumferential side plate 1a of the receiving frame 1. Although the decorative joints 5 were rubbed directly against the decorative joints 5 and the cosmetic joints 5 were damaged, even though the cosmetic joints were provided to match the surrounding environment and the appearance was improved, the damage to the decorative joints 5 caused the damage to the decorative joints 5. There was a problem that caused the image to deteriorate.

The present invention was developed in view of the above circumstances, and it prevents the bottom of the lid from rubbing against the decorative joint on the upper end surface of the peripheral side plate of the receiving frame and damaging the decorative joint when the lid is opened and closed horizontally. To provide a horizontally pulling type decorative manhole cover that can prevent damage to the image due to damage to joints.

[Structure of the idea]

(Means and effects for solving the problem) In order to achieve the above-mentioned purpose, the decorative manhole cover of the present invention includes a receiving frame that is embedded and fixed in the upper edge of the manhole and has a decorative joint on the upper end surface, and the receiving frame. A decorative manhole cover consisting of a side-pull-type lid body that is fitted inside and can be opened by once pulling up one end side with a side-pulling handle and then pulling it outward and sliding it. A joint protection roller made of non-metallic material such as rubber is installed in a protruding state via a bearing member, and is installed in a protruding state through a bearing member, which contacts the decorative joint on the upper end surface of the receiving frame when the lid is opened and closed by pulling horizontally. It has a structure in which a long strip-shaped slide plate made of non-metallic material such as acrylic is attached along the joint.

With this, when opening/closing the lid sideways, the second
As shown by the imaginary line in the figure, when one end side of the lid passes the upper edge of the receiving frame, a joint protection roller made of non-metal such as rubber rolls into contact with the decorative joint on the upper end surface of the receiving frame. At the same time, when one end of the lid is pulled horizontally outward, a joint protection slide plate made of non-metallic material such as acrylic that extends in the horizontal pulling direction on the bottom of the lid covers the decorative joint on the upper end of the receiving frame. This makes sliding contact, and under any circumstances, the bottom of the lid body will not directly rub against the decorative joint on the upper end surface of the receiving frame, and damage to the decorative joint can be reliably prevented.

(Example) An example of the present invention will be described below with reference to FIGS. 1 and 2. Components in the figure that overlap with those shown in FIGS. 3 and 4 are given the same reference numerals to simplify the explanation.

First, FIG. 1 is a bottom view of the lid 2 alone, and FIG. 2 is an enlarged side view of one end thereof. A similarly square-shaped lid body 2 is provided which can be opened and closed by horizontally pulling the square-shaped receiving frame 1 similar to the conventional one. The bottom plate 2b has a substantially inverted hat shape in cross section, and the bottom plate 2b is connected to the surrounding relatively shallow bottom plate part 1.
0 and a bottom plate portion 11 that is one step deeper on the inner periphery. Of course, although not shown, blocks as a paving material are laid in the recessed part of the upper surface of the lid 2, and decorative joints 5 made of stainless steel or the like are provided on the upper end surfaces of the peripheral side plates 1a, 2a of the receiving frame 1 and the lid 2. 6 is installed.

Here, since the bottom plate 2b of the lid body 2 has a two-step bottom, a joint is formed at two corners on the left side of the bottom surface of the surrounding shallow bottom plate part 10 where a space is created between it and the bottom plate 1b of the receiving frame 1. A protective roller 12 is attached. In other words, one end side (left side in the figure) 2 where the handle hook keyhole 2f for horizontally opening and closing the lid body 2 is located.
A joint protection roller 12 is attached to each corner edge. These joint protection rollers 12
A non-metallic material such as rubber that will not cause damage even if it comes into direct contact with the
The joint protection rollers 12 are rotatably attached via a shaft 15 to a pair of bearing members 14 such as angle members fixed via Moreover, it is in a state that it slightly protrudes downward from the lower surface of the deep bottom plate part 11.

Note that the deep bottom plate portion 11 of the bottom plate 2b of the lid body 2
A pair of joint protection slide plates 16 in the form of elongated strips are attached to the lower surface with parallel spacing between each other in the left-right direction using a plurality of countersunk machine screws 17. Each of these slide plates 16 is made of non-metallic material such as acrylic, which will not cause any damage even if it directly rubs against the decorative joint 5.

In the decorative manhole cover configured as described above, when the lid body 2 fitted to the receiving frame 1 is laterally pulled open, the pair of horizontal pull handles are pulled at the two corners of one end of the lid body 2. The lid body 2 is opened by inserting it into the keyhole part 2f for locking the handle and latching it, and having the operator hold it in his/her hand, pull it upward once, pull it outward at one end, and slide it.
Also, it is closed by sliding it back from the open state and fitting it. Such horizontal pulling opening/closing operations can be performed in exactly the same manner as before.

When opening and closing the lid 2 by pulling it horizontally, especially when trying to pull up one end of the lid 2 with the horizontal pulling handle and pulling it outward, conventionally, the edge of one end of the bottom of the lid 2 is attached to the receiving frame 1. There was a fear that the joints 5 would be damaged by rubbing directly against them, but in this invention, the joint protection roller 12 made of rubber or other non-metallic material provided on the edge of one end of the bottom surface of the lid body 2 is fixed to the support frame. 1, the bottom edge of the lid body 2 is prevented from coming into direct contact with the decorative joint 5 of the receiving frame 1, and damage to the decorative joint 5 is surely prevented. You will be able to do it. Conversely, when sliding the lid 2 from the open state to push it back and finally dropping one end of the lid 2 into the receiving frame 1, the joint protection roller 12 is used in the same manner as described above. This prevents the bottom edge of the lid body 2 from coming into contact with the decorative joint 5 on the upper end surface of the receiving frame 1 and directly rubbing against the decorative joint 5 of the receiving frame 1, thereby reliably eliminating damage to the decorative joint 5. It becomes like this.

In addition, by providing the joint protection roller 12, the decorative joints 5 of the receiving frame 1 are protected when the lid body 2 is opened and closed horizontally.
In addition, a joint protection slide plate 16 made of non-metallic material such as acrylic is provided on the bottom of the lid body 2, and this protects the joints when the lid body 2 is opened and closed horizontally. When the slide is moved by pulling outward or pushing back, the receiving frame 1
The lid body 2 comes into sliding contact with the decorative joints 5, and the bottom part of the lid body 2 does not come into contact with the decorative joints 5, thereby preventing damage.

[Effect of idea]

Since the decorative manhole cover of the present invention is configured as described above, when the cover body is opened/closed by pulling it sideways, when one end side of the cover body passes the upper edge of the receiving frame, a non-metallic material such as rubber The joint protection roller comes into rolling contact with the decorative joint on the upper end surface of the receiving frame, and
Furthermore, when one end of the lid is pulled horizontally outward, a joint protection slide plate made of non-metallic material such as acrylic that extends in the horizontal pulling direction on the bottom of the lid slides into contact with the decorative joint on the upper end surface of the receiving frame. In either state, the bottom of the lid body does not directly rub against the decorative joints on the upper end surface of the receiving frame, and it is possible to reliably prevent damage to the decorative joints.

[Brief explanation of the drawing]

Fig. 1 is a bottom view of only the lid of a manhole cover showing one embodiment of the present invention, Fig. 2 is an enlarged side view of one end side thereof, Fig. 3 is a plan view of the entire manhole showing a conventional example, and Fig. FIG. 4 is a sectional view taken along the - line in FIG. 3. 1... Receiving frame, 2... Lid body, 2f... Keyhole for hanging horizontal pull handle, 5, 6... Decorative joint, 12...
...Joint protection roller, 14...Bearing member, 16...
Slide plate for joint protection.

Claims (1)

[Scope of utility model registration request] A receiving frame is embedded and fixed to the upper edge of the manhole and has a decorative joint on the upper end surface, and it is fitted into this receiving frame and can be opened by pulling up one end side with a horizontal pull handle and then pulling it outward and sliding it. In a decorative manhole cover consisting of a side-pull type lid, a non-metallic material such as rubber is attached to one side edge of the bottom surface of the lid that rolls into contact with the decorative joint on the upper end surface of the receiving frame when the lid is opened and closed horizontally. A joint protection roller is attached in a protruding state via a bearing member, and a joint protection slide plate made of non-metallic material such as acrylic is attached to the bottom of the lid body in the form of a long strip along the horizontal pulling direction. A cosmetic manhole cover featuring: