JP3186272U - Hinge and groove coating apparatus using the same - Google Patents

Abstract

The present invention provides a 180 ° rotation opening / closing type groove coating apparatus using a novel hinge capable of attaching a groove lid to a receiving frame with a simple operation.
A hinge includes a fixing portion fixed to a groove support plate of a receiving frame, a rotating portion having an opening into which a support shaft provided at a side end portion of the groove lid can be inserted, a fixing portion and a rotating portion. The fixing portion 3 has a bottom portion and two side portions extending vertically from the bottom portion, and a fixing opening for fixing the receiving frame and the bolt 4 is provided at the bottom portion. Each of the two side portions is provided with a rotation shaft insertion portion which is an opening facing the same central axis and a round portion for sliding the rotation portion 2, and the rotation portion 2 is arranged in the major axis direction. The upper part of the rotating part has a long axis direction longer than the interval between the two side parts, and the long axis direction of the lower part of the rotating part is longer. Is shorter than the distance between the two side portions, and the rotary shaft insertion portion provided in each of the two side portions and the cavity in the lower portion of the rotation portion Is inserted constitutes a rotary shaft.
[Selection] Figure 3

Description

  The present invention relates to a covering device composed of a receiving frame, a groove cover, and the like installed on the upper surface of a drainage groove provided on a roadside, a parking lot or the like, and in particular, opens approximately 180 degrees from a state where the groove cover is closed. It is something that can be done.

  It is necessary to be able to open the groove lid in order to perform maintenance inside the drainage groove, such as removal of dust, in the side groove of the drainage groove and the water collecting trough. Further, from the viewpoint of preventing theft, it is desirable to have a structure in which the groove lid cannot be easily removed from the receiving frame. From such a point of view, a groove coating apparatus is used in which a groove lid is attached to a receiving frame so as to be capable of rotating and opening.

  For example, using a hinge with two cylinders arranged side by side, a spindle fixed to the notch in the groove lid is inserted into one cylinder, and the other cylinder is inserted through a hole drilled in the side of the receiving frame. A configuration has been proposed in which a groove lid can be opened 180 degrees from a closed position by inserting a pin fixed by welding (for example, Patent Document 1).

  In this configuration, since the hinge is located in the notch portion of the groove lid, a large gap is not opened between the receiving frame and the groove lid side as compared with the case where the hinge is provided between the receiving frame and the groove lid side surface. In addition, there is no possibility that the heel of the high heel is caught in the gap, and there is no problem that the groove lid moves left and right within the receiving frame. Moreover, since the hinge is produced by plastic working of a single flat steel plate, there is no need for labor such as welding, and the manufacturing cost can be reduced.

Noto 3027072

  However, in this configuration, when attaching the groove lid, it is necessary to insert a pin from a hole formed in the side surface of the receiving frame and weld it. Therefore, after attaching the groove lid to the receiving frame, place the receiving frame on the drainage groove body. It had to be installed by placing concrete. Groove lids are heavy, with a weight of several tens of kilograms. Placing concrete by accurately positioning such a heavy load has a heavy work load. Also, when placing concrete, it is necessary to enclose the concrete so that it does not enter the receiving frame. Since the work is performed after the heavy object is opened, the enclosure is provided, and then the groove lid is closed. It was extremely large.

Not only is the work difficult, but in this case, since it is necessary to deliver the receiving frame and the groove cover at the same time, there is also a problem that the construction period is long.
A receiving frame with a simple structure compared to the groove lid requires a shorter delivery time. If only the receiving frame can be installed on the drainage gutter by placing concrete, after receiving the order, the receiving frame is delivered first, and the installation work of the receiving frame on the drainage ditch and the construction of the road around it are completed. After that, if the groove cover is delivered, the entire construction period can be shortened.

  In addition, when attaching the groove lid to the receiving frame, the hole drilled in the side of the receiving frame and the positioning of the other cylinder are passed through one spindle of the hinge through the spindle fixed to the notch of the groove lid. It was necessary to pass the pin so as to enter the cylinder from the outside of the side surface of the receiving frame, and to fix the pin to the side surface of the receiving frame with welding while maintaining this state. Considering the weight of the groove lid, it was an extremely difficult task.

  Furthermore, with this configuration, it is impossible to remove the groove lid from the receiving frame. Therefore, even when the groove lid is damaged, the groove lid cannot be replaced. It was impossible to change the specifications and design of the groove lid.

  When closing the groove lid, the side corners of the groove lid collide with the groove lid support plate, which is the bottom of the receiving frame, and the groove lid cannot be closed smoothly. It was necessary to lift and close. Further, the side corners of the groove lid, which is a heavy object, may collide with the groove lid support plate of the receiving frame and damage the groove lid support plate.

  In this configuration, since the hinge is produced by plastic working of a single flat steel plate, there is an advantage that the labor of welding or the like is unnecessary and the manufacturing cost can be reduced, but the cylindrical portion of the hinge is completely In order to secure the strength without being closed, it is necessary to increase the strength by welding the open portion of the cylinder, resulting in an increase in cost.

  Furthermore, in this configuration, since the hinge fills the notch portion of the groove lid, the heel of the high heel is not caught in the gap, but the hinge is cylindrical, so when stepping on the hinge, the balance collapses and falls down In particular, when the hinge is wet during rain, there is a problem that the risk increases.

A hinge according to claim 1 of the present invention is a hinge for connecting a groove lid provided on the upper part of a groove and a receiving frame,
A fixing portion fixed to the groove lid support plate of the receiving frame;
A rotating part having an opening into which a support shaft provided at a side end of the groove lid can be inserted;
A rotating shaft that couples the fixed portion and the rotating portion;
With
The fixed part is
The bottom,
Two sides each extending substantially vertically from the bottom,
Have
The bottom is provided with a fixing opening for fixing the receiving frame and the bolt,
Each of the two side portions is provided with a rotation shaft insertion portion that is an opening facing the central axis substantially the same, and a round portion for sliding the rotation portion,
The rotating part is
Two substantially rectangular parallelepiped-shaped rotating part upper part and rotating part lower part which have a cavity inside along a major axis direction,
Have
The major axis direction of the upper part of the rotating part is longer than the interval between the two side parts,
The major axis direction of the lower part of the rotating part is shorter than the interval between the two side parts,
The rotating shaft is inserted into the rotating shaft insertion portion provided in each of the two side portions and a cavity in the lower portion of the rotating portion.

In the groove covering structure comprising the hinge, the receiving frame and the groove lid according to claim 2 of the present invention,
The receiving frame has a pair of groove lid support plates for supporting the groove lid at both ends of the bottom,
The groove lid is provided with notches at both ends of one side surface, and has a support shaft substantially parallel to the side surface in each notch,
Female thread portions are provided in the vicinity of both ends of the one groove lid support plate,
The pair of hinges are fixed in the vicinity of both ends of the one groove lid support plate by a screw mechanism using the fixing opening and the female screw part,
The support shafts provided in the respective cutouts are respectively inserted into cavities in the upper portions of the rotating portions of the pair of hinges.

In the groove covering structure comprising the receiving frame and the groove lid according to claim 3 of the present invention,
In particular, the female screw portion provided near both ends of the one groove lid support plate has an opening only above the groove lid support plate.

In the groove covering structure comprising the receiving frame and the groove lid according to claim 4 of the present invention,
In particular, the female thread portion provided near both ends of the one groove lid support plate is a cap nut provided on the lower surface of the groove lid support plate.

  In the hinge according to the present invention and the groove coating apparatus using the hinge, since the rotation of the rotating part of the hinge is restricted with a simple configuration, the groove lid 7 can be closed smoothly and easily with an intuitive operation. There is no need to strongly lift the heavy-duty groove lid, and there is no fear of damaging the groove lid support plate.

  Further, since the hinge is provided in the notch of the groove lid, a large gap cannot be formed between the receiving frame side surface and the groove lid side surface as compared with the case where the hinge is provided between the receiving frame side surface and the groove lid side surface. Therefore, there is no worry of people tripping and the design is good.

  In addition, when notches are provided in the groove lid, there is a concern that people may trip due to the notches, but when the groove is closed, the hinges are stored in the notches, so the size of the hinges will be reduced. If you make it big enough, you don't have to worry about it.

  Further, since the hinge is fixed to the groove lid cover support plate of the receiving frame by a screw mechanism, the groove cover can be easily and safely attached. In particular, there is no need to provide a pin on the receiving frame side, and therefore, only the support shaft of the groove lid needs to be passed through the hinge, so that the mounting operation is simplified. Further, since the removal can be easily performed, even when the groove cover is damaged, the groove cover can be easily replaced.

  Since the lower part of the female screw portion provided near both ends of one groove lid cover support plate is closed and only the upper part where the bolt is inserted is opened, the female frame is installed during the installation work of the receiving frame by concrete placement. Concrete does not enter the threaded portion, and therefore the groove lid can be attached to the receiving frame after only the receiving frame is installed. For heavy objects, it is not necessary to perform installation work on a road or the like with a groove cover, which is a heavy object of several tens of kilograms, and the work load can be reduced. Also, if the receiving frame with a short delivery date is delivered first and only the receiving frame is installed on the drainage groove and then the groove cover is delivered, the entire construction period can be shortened.

It is component drawing which comprises the hinge concerning this invention, (a) is a rotation part, (b) is a fixing | fixed part. It is an assembly view of a hinge according to the present invention. It is a figure explaining the motion of the rotation part of the hinge which concerns on this invention. It is a perspective view of the receiving frame which concerns on this invention. It is a top view of the receiving frame which concerns on this invention. It is a top view of the groove cover which concerns on Embodiment 1 of this invention. It is a top view at the time of attaching the groove cover which concerns on this invention to a receiving frame via a hinge. It is a side view at the time of attaching the groove cover which concerns on this invention to a receiving frame via a hinge. It is a top view when the groove cover is closed in the groove coating apparatus according to the present invention. It is a side view at the time of closing a slot lid in a slot covering device concerning the present invention. It is a side view at the time of opening a groove lid to 90 degree | times in the groove | channel coating apparatus which concerns on this invention. It is a side view at the time of opening a groove cover more than 90 degree | times in the groove | channel coating apparatus which concerns on this invention. It is a side view at the time of opening a groove cover in the groove coating apparatus which concerns on this invention about 180 degree | times. It is a side view at the time of closing a groove lid in the groove covering device concerning the present invention. It is a reference figure for explaining the trouble which arises when there is no restriction in the movement of a rotation part.

Embodiment.
The configuration of the hinge according to the present invention and the groove coating apparatus using the hinge will be described below with reference to the drawings. The following description discloses a good example related to the present invention, and the present invention is not limited to the embodiment. For example, the materials, dimensions, and the like of the device disclosed in the present embodiment are merely a good example, and other possibilities are not denied.

  A covering device for a groove such as a drain groove disclosed below in the present embodiment includes a receiving frame, a groove cover, and a hinge for connecting them. In particular, a description will be given of a rotary opening / closing type groove covering apparatus that can be opened by about 180 degrees from a state in which the groove lid is closed.

First, the configuration of the hinge according to the present embodiment will be described with reference to FIGS. FIG. 1 is a side view and a front view of parts constituting a hinge, and FIG. 2 is a view showing a method for assembling those parts.
The components constituting the hinge 1 include a rotating part 2 shown in FIG. 1A, a fixing part 3 shown in FIG. 1B, and a rotating shaft for rotatably connecting the rotating part 2 to the fixing part 3. Become. As the rotating shaft, for example, the bolt 4 and the nut 5 shown in FIG. 2 can be used.

  The rotating unit 2 has an appearance in which two rectangular parallelepiped prisms having different lengths are combined, and the inside thereof is a cavity along the longitudinal direction of the rectangular parallelepiped shape. This cavity may be divided into two with a wall at the coupling surface of two prisms, but may be one cavity as shown in FIG. The shorter prism is called the lower rotating part 21 and the longer prism is called the upper rotating part 22. And the cavity in each prism is called the lower bearing part 23 and the upper bearing part 24.

The fixed portion 3 includes a bottom portion 31 that forms a bottom surface, and two side portions 34 that rise substantially vertically from the bottom portion 31.
The bottom 31 is provided with a fixing opening 32. The fixing opening 32 is an opening for fixing the hinge to the groove lid support plate of the receiving frame.
Each of the two side portions 34 is provided with a rotation shaft insertion opening 34 for connecting to the rotation portion 2. Further, a rounded portion 35 is provided at the upper portion. As shown in the front view of FIG. 1B, the two side portions 34 rise substantially vertically from both ends of the bottom portion 31, but do not necessarily need to rise from both ends of the bottom portion 31. For example, when the width when viewed from the front of the bottom portion 31 is made longer in order to make the fixing of the receiving frame to the groove lid support plate more stable, the two side portions 34 from the center rather than the end portion are used. May stand up.

  What is important in construction is the distance formed by the two side portions 34. The distance formed by the two side portions 34 is longer than the rotating portion lower portion 21 and shorter than the rotating portion upper portion 22. That is, the rotating part lower part 21 can be inserted between the two side parts 34, but the rotating part upper part 22 cannot be inserted.

Next, how to assemble these components will be described with reference to FIG.
The rotating portion lower portion 21 of the rotating portion 2 is inserted between the two side portions 34 of the fixed portion 3, the rotation shaft insertion opening 34 provided in the two side portions 34, and the cavity in the rotating portion lower portion 21. The bolt 4 is inserted into the lower bearing portion 23. And the rotation part 2 can be combined with the fixing | fixed part 3 rotatably by tightening the volt | bolt 4 using nuts 5, such as a plate nut.

The bolt 4 is male threaded only at the tip, and the bolt 4 can rotate within the rotary shaft insertion opening 34 even when the bolt 4 and the nut 5 are strongly tightened. By doing in this way, the rotation part 2 can rotate more smoothly with respect to the fixing | fixed part 3. FIG.
However, even if the bolt 4 cannot rotate within the rotation shaft insertion opening 34, the rotating unit 2 can rotate with respect to the fixed unit 3, and thus the above-described configuration is not necessarily essential. For example, in FIG. 2, the male screw at the tip of the bolt 4 may be deeply cut so that when the nut 5 is tightened, the rotating shaft insertion opening 34 may be tightened. Alternatively, a round bar may be used as the rotating shaft without using a bolt, and the round bar may be fixed to the rotating shaft insertion opening 34 by welding or the like.

  As shown in FIG. 3, the rotating part 2 can rotate the hinge assembled in this way. During this rotation, the portion of the rotating portion upper portion 22 protruding on the boundary line between the rotating portion lower portion 21 and the rotating portion upper portion 22 slides on the rounded portion 35 provided on each of the side portions 34. However, since the lower bearing portion 2 that is hollow than the bolt 4 that is the rotating shaft is made slightly larger, that is, there is play, it is not always necessary to slide on the round portion 35, The rotating unit 2 can be rotated with a slight interval.

  Therefore, the rounded portion 35 is provided to determine the rotation range of the rotating portion 2 rather than the sliding portion. As shown in FIG. 3, the rotating unit 2 can rotate in a range of approximately 90 degrees from the state of FIG. As described above, since there is play, the rotational range is slightly larger than 90 degrees.

Next, the structure of the receiving frame will be described with reference to FIGS.
4 is a perspective view of the receiving frame 6, and FIG. 5 is a top view.
The receiving frame 6 includes a receiving frame main body 61 that forms a side surface thereof, a pair of groove lid support plates 62 formed at both ends of the bottom surface, a drainage gap 63 that is a gap between the pair of groove lid support plates 62, concrete and the receiving frame 6. The anchor 64 is provided to ensure the coupling with the groove 64, and the fixing opening 65 is provided in the vicinity of both ends of the one groove lid support plate 62.

In the receiving frame body 61, a grating, which will be described later, is a groove lid.
A pair of groove lid support plates 62 are fixed to the left and right ends of the bottom surface of the receiving frame body 61 by welding or the like. A groove lid is placed on the pair of groove lid support plates 62. A large gap 63 is provided between the pair of groove lid support plates 62, and rainwater or the like flows into the drainage groove main body from the gap 13.

  Among the pair of groove lid support plates 62, fixing openings 65, which are through holes, are formed in the vicinity of both end portions of one groove lid support plate 62. A cap nut (not shown) is provided below the fixing opening 65. The cap nut is fixed to the back surface of the groove lid support plate 62 by welding or the like. The fixing opening 65 is an opening having the same size as the fixing opening 32 provided in the fixing portion 2 of the hinge 1, and the fixing portion 3 of the two hinges 1 is used as a groove lid support plate by using these two openings. It fixes to the both ends vicinity of 62. That is, the fixing portion 3 of the hinge 1 can be fixed to the groove lid support plate 62 by inserting bolts into the two openings from above and tightening the bolts to the cap nuts.

Thus, by providing a cap nut on the back surface of the groove lid support plate 62 by welding or the like, the concrete is prevented from flowing in from the back surface of the groove lid support plate 62 when placing concrete. Therefore, without using a cap nut, cut directly female screw in the vicinity of both ends of the Mizofuta support plate 62, Ru same effect can be obtained even in the structure in which closing the bottom. In any case, an internal thread may be provided in the vicinity of both ends of the groove lid support plate 62.

Next, the configuration of the groove lid will be described.
The groove cover used in the present invention may be a grating, a decorative groove cover, or a cast groove cover. In the present embodiment, as an example, the case where grating is used as a groove cover will be described with reference to FIG.

  The groove lid 7 is provided with notches 72 at both ends of one side surface thereof. In order to provide the cutout, in the case of grating, the bearing bar may be cut halfway and a side bar shorter than the side bar on the opposite side may be used. A support shaft 73 extending in parallel with the side surface provided with the notch is provided in the notch.

A method of attaching the groove lid 7 to the receiving frame 6 using the two hinges 1 will be described with reference to FIGS. FIG. 7 is a top view at the time of attachment, and FIG. 8 is a partial side view of the rotation mechanism such as the hinge 1 as seen from the direction of arrow A in FIG.
First, the side surface on the side where the support shaft 73 of the inverted groove lid 7 is provided is overlapped on the receiving frame main body 61 on the side where the fixing opening 65 of the receiving frame 6 is provided. Then, the upper bearing portion of the rotating portion 2 of the hinge 1 is inserted into each of the two support shafts 73. The side surface of the inverted groove cover 7 on the side where the support shaft 73 is not provided is lifted so that the groove cover 7 is substantially parallel to the ground. In this state, alignment is performed so that the fixing opening 32 provided in the fixing portion 3 of the hinge 1 is on the fixing opening 65 of the receiving frame 6. Then, as shown in FIG. 8, the groove lid 7 can be attached to the receiving frame 6 by inserting the bolts 8 into both openings and tightening the cap nuts 66.
Further, if the bolt 8 is loosened, the groove lid 7 can be easily detached from the receiving frame 6.
That is, the groove lid 7 can be detached from the receiving frame 6 as necessary.

  Thus, after attaching the groove cover 7, the groove cover 7 can be installed in the receiving frame 6 by rotating the groove cover 7 180 degrees. FIG. 9 is a top view of the groove lid 7 in a closed state, and FIG. 10 is a partial side view of the rotation mechanism such as the hinge 1 viewed from the direction of the arrow A.

  In the state where the groove lid 7 is closed, the rotating portion 3 of the hinge 1 falls to the side. As can be seen from FIG. 9, the hinge 1 is just in the cutout portion 72 of the groove lid 7, so that no person trips at the cutout portion 72 of the groove lid 7.

Next, the movement of the groove lid 7 and the rotating part 2 of the hinge 1 when the groove lid 7 is opened from this closed state will be described with reference to FIGS. 11 to 13.
First, the side surface of the groove lid 7 opposite to the support shaft 73 is lifted. FIG. 11 shows a side view of the lifted state by about 70 degrees from the closed state. In accordance with the operation of lifting the side surface opposite to the support shaft 73, the rotating portion upper portion 22 side of the rotating portion 2 of the hinge 1 is also slightly lifted.

When the groove cover 7 is further lifted by 90 degrees or more, as shown in FIG. 12, the rotating part upper part 22 side of the rotating part 2 of the hinge 1 is also lifted by about 90 degrees.
And the state which opened the groove cover 7 to the other side about 180 degree | times is FIG. In this way, the rotating portion 2 of the hinge 1 rises in response to the rotation of the groove lid 7, and thereby the vertical position of the groove lid 7 is shifted upward, so that the groove lid 7 that has been accommodated in the receiving frame 6 is replaced with the receiving frame 6. It is possible to rotate approximately 180 degrees beyond.

Next, the movement of the groove lid 7 and the rotating portion 2 of the hinge 1 when the groove lid 7 is closed from the fully open state of about 180 degrees will be described with reference to FIG.
When closing the groove lid 7, the side surface of the groove lid 7 opposite to the support shaft 73 is lifted up as in the case of opening the groove lid 7. However, the difference from the opening is that the groove lid 7 is not lifted up strongly but is rotated around the support shaft 73.

  This is because the groove lid 7 is placed on the receiving frame 6 from the receiving frame 6 when opening, but the groove lid 7 is dropped into the receiving frame 6 when closing. This is because the way of hanging is slightly different. Then, due to this subtle difference in how to apply force, the rotating portion 2 of the hinge 1 falls to the receiving frame side at an early stage of rotation, as shown in FIG.

  At this time, as described above with reference to FIG. 3, the rotating unit 2 has a movable range and stops in a state where it is inclined by 90 degrees as shown in FIG. Therefore, the groove lid 7 can maintain a high position with respect to the groove lid support plate 62 of the receiving frame 6. Thereby, the groove lid 7 can be smoothly closed without colliding with the groove lid support plate 62 of the receiving frame 6.

  For example, if the length of the rotating upper part 22 of the rotating part 2 of the hinge 1 is the same as the length of the rotating lower part 21 and the rotating upper part 22 can enter between the two side parts 33 of the fixed part 3, Part 2 further rotates downward. In this case, as shown in FIG. 15 which is a reference view, the groove lid 7 collides with the groove lid support plate 62 of the receiving frame 6 at a point indicated by an arrow B.

  Thus, if the groove cover 7 collides with the groove cover support plate 62 of the receiving frame 6, the groove cover 7 cannot be rotated as it is. Therefore, it is necessary to rotate the groove lid 7 which is a heavy object while lifting it up, and the work of closing the groove lid becomes troublesome. Further, there is a possibility that the groove lid 7 which is a heavy object may damage the groove lid support plate 62.

As disclosed above, the hinge according to the present invention and the groove covering structure using the hinge have many advantages. This is summarized below.
First, since the rotation of the rotating portion of the hinge is regulated with a simple configuration, the groove lid 7 can be smoothly closed with a simple and intuitive operation. There is no need to lift a heavy groove cover, and there is no fear of damaging the groove cover support plate.

  Second, since the hinge is provided in the notch of the groove lid, a large gap cannot be formed between the receiving frame side surface and the groove lid side surface as compared with the case where the hinge is provided between the receiving frame side surface and the groove lid side surface. When a large gap is formed, the groove lid moves in the gap, and one gap is further increased, which causes a person to stumble. There is also a problem with the design. For this reason, a problem arises in terms of cost such as separately preparing parts for filling the gap and changing the shape of the side surface of the receiving frame.

  Third, when notches are provided in the groove lid, there is a risk of people tripping due to the notches, but when the groove is closed, the hinges are stored in the notches, so the size of the hinges is cut off. If the size is almost filled, this worry will not occur.

  Fourth, since the hinge is fixed to the groove lid cover support plate of the receiving frame by a screw mechanism, the groove lid can be easily and safely attached. In particular, there is no need to provide a pin on the receiving frame side, and therefore, only the support shaft of the groove lid needs to be passed through the hinge, so that the mounting operation is simplified. Further, since the removal can be easily performed, even when the groove cover is damaged, the groove cover can be easily replaced.

  Fifth, since the lower part of the female screw part provided near both ends of one groove lid cover support plate is closed and only the upper part where the bolt is inserted is opened, the installation work by the concrete placement of the receiving frame The concrete does not enter the female screw portion, and therefore, the groove cover can be attached to the receiving frame after only the receiving frame is installed. For heavy objects, it is not necessary to perform installation work on a road or the like with a groove cover, which is a heavy object of several tens of kilograms, and the work load can be reduced. Also, if the receiving frame with a short delivery date is delivered first and only the receiving frame is installed on the drainage groove and then the groove cover is delivered, the entire construction period can be shortened.

DESCRIPTION OF SYMBOLS 1 Hinge 2 Rotating part 3 Fixed part 4 Bolt 5 Nut 6 Receiving frame 7 Groove lid 8 Bolt 21 Rotating part lower part 22 Rotating part upper part 23 Lower bearing part 24 Upper bearing part 31 Bottom part 32 Fixing opening 33 Side part 34 Rotating shaft insertion opening 35 Round portion 61 Receiving frame main body 62 Groove lid support plate 63 Drain gap 64 Anchor 65 Fixing opening 66 Cap nut 71 Groove lid main body 72 Notch portion 73 Support shaft

Claims (4)

A hinge for connecting a groove lid and a receiving frame provided at the upper part of the groove,
A fixing portion fixed to the groove lid support plate of the receiving frame;
A rotating part having an opening into which a support shaft provided at a side end of the groove lid can be inserted;
A rotating shaft that couples the fixed portion and the rotating portion;
With
The fixed part is
The bottom,
Two sides each extending substantially vertically from the bottom,
Have
The bottom is provided with a fixing opening for fixing the receiving frame and the bolt,
Each of the two side portions is provided with a rotation shaft insertion portion that is an opening facing the central axis substantially the same, and a round portion for sliding the rotation portion,
The rotating part is
Two substantially rectangular parallelepiped-shaped rotating part upper part and rotating part lower part which have a cavity inside along a major axis direction,
Have
The major axis direction of the upper part of the rotating part is longer than the interval between the two side parts,
The major axis direction of the lower part of the rotating part is shorter than the interval between the two side parts,
The hinge characterized by inserting the said rotating shaft into the said rotating shaft insertion part provided in each of said two side parts, and the cavity in the said rotating part lower part. A groove covering structure comprising the hinge according to claim 1, a receiving frame, and a groove lid,
The receiving frame has a pair of groove lid support plates for supporting the groove lid at both ends of the bottom,
The groove lid is provided with notches at both ends of one side surface, and has a support shaft substantially parallel to the side surface in each notch,
Female thread portions are provided in the vicinity of both ends of the one groove lid support plate,
The pair of hinges are fixed in the vicinity of both ends of the one groove lid support plate by a screw mechanism using the fixing opening and the female screw part,
The groove covering structure, wherein the support shafts provided in the respective cutouts are respectively inserted into cavities in the upper rotating parts of the pair of hinges. The groove covering structure according to claim 2, wherein the female screw portion provided in the vicinity of both ends of the one groove lid support plate has an opening only above the groove lid support plate. The groove covering structure according to claim 3, wherein the female thread portion provided in the vicinity of both ends of the one groove lid support plate is a cap nut provided on the lower surface of the groove lid support plate.