JP2007023548A - Covering lid and installation structure thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an arch-shaped covering lid which is provided with a wheel, and which makes the wheel hardly derail, without complicating a structure. <P>SOLUTION: The covering lid 1 comprises a main body part 10 which is curved in an upward protruding manner, and wheel parts 11 which are arranged at both the ends of the main body part 10; the wheel part 11 is provided with the wheel 30 and an axle 31; the direction of the axle 31 of the wheel part 11 is inclined with respect to a horizontal direction; and the wheel 30 is inclined in such a manner that its upside is directed inward. A traveling part 32 of the wheel 30 is recessed and fitted to a rail 80. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cover lid disposed on a water channel or a water tank.

  The cover placed on the water channel or the water tank prevents the object or the like from dropping from the outside to the water channel or the water tank, or prevents the odor from the inside from leaking to the outside. In addition, a cover having strength is used so that it does not break when a load is applied to the cover, such as when a person rides on the cover.

Since such a cover is placed on the upper side of the water channel or the water tank, when the width of the water channel or the water tank is long, a long cover is used. Since such a cover needs to support its own weight or a load applied from above at its end, an arch-shaped one using a high-strength and lightweight material and protruding upward is used. Such a cover is described in Patent Document 1 and the like.
JP 2002-88739 A

The cover is disposed on the upper side of the water channel or the water tank, but the cover may be opened or closed as necessary. In such a case, there is a method in which wheels are provided at both ends of the arch so as to facilitate the sliding movement of the arch-shaped cover, and the wheels are arranged on the rail so that the wheels can be rotated to travel. .
And when sliding a cover, since a wheel can be rotated and it can drive | work on a rail, it can carry out easily.

  However, the arch-shaped cover may be deformed so that the degree of curvature of the arch becomes small due to its own weight or a load acting on the cover. In this case, the distance between the end portions of the arch becomes long, and the positional relationship with the rails and guides on which the wheels travel may be shifted so as to protrude outward, and the wheels may be removed.

In order to make the curved part of the arch difficult to deform, it may be possible to increase the rigidity of the arch by providing a reinforcing part inside the curved part, but the cover structure becomes complicated and difficult to manufacture, and the whole is heavy. turn into. Furthermore, if a reinforcing portion is provided on the inside of the curve, it is difficult to arrange a plurality of cover covers inside and outside the curve so that the structure can be easily opened and closed.
In order to prevent the wheel from being removed, the provision of a new member for preventing the wheel from coming out makes the structure complicated.

  Accordingly, an object of the present invention is to provide an arch-shaped cover provided with wheels, which is difficult to remove the wheels without complicating the structure.

  The invention described in claim 1 for achieving the above-described object has a main body portion that curves so as to protrude upward, and a wheel portion that is disposed at both ends of the main body portion and is provided with a wheel and a shaft. The wheel part shaft is fixed to the main body part, the wheel part is rotatable, the main body part can be moved by rotating the wheel, and the wheel part shaft direction is horizontal. The cover is characterized by being inclined with respect to the direction, the direction of the inclination being the direction in which the outer side is the upper side, and the wheel being inclined so that the upper side is the inner side.

  According to the first aspect of the present invention, the wheel portions are provided at both ends of the body portion that curves so as to protrude upward, and the wheels of the wheel portion are inclined so that the upper side is on the inside. Even when a force that reduces the curvature of the wheel is applied to change the inclination of the wheel, the weight of the vehicle can be reliably supported.

  According to the second aspect of the present invention, the traveling portion of the wheel has a concave shape, and the wheel rotates with the rail disposed on the lower side of the wheel fitted in the concave portion of the traveling portion of the wheel. The cover according to claim 1, wherein

  According to the second aspect of the present invention, the traveling portion of the wheel is concave, and the wheel rotates with the rail disposed on the lower side of the wheel fitted in the concave portion of the traveling portion of the wheel. It is easy to move the cover by running on the rail, and the position is difficult to shift.

  The invention according to claim 3 is the cover according to claim 2, wherein the shape of the traveling portion of the wheel is such that the cross-sectional shape in a plane including the axis of the wheel portion is an arc shape.

  According to the third aspect of the present invention, the shape of the traveling part of the wheel is stable even when the inclination of the wheel changes because the cross-sectional shape in the plane including the axis of the wheel part is an arc shape. Can be run on the rail.

  The invention described in claim 4 is a cover installation structure in which the cover and the rail according to claim 3 are used, and the cross-sectional shape of the rail in the portion in contact with the wheel is a concave portion of the traveling portion of the wheel. It is the installation structure of the cover characterized by the circular arc shape corresponding to.

  According to the fourth aspect of the present invention, since the cross-sectional shape of the rail in the portion in contact with the wheel is an arc shape corresponding to the concave portion of the traveling portion of the wheel, further, even when the inclination of the wheel changes. It is possible to stably run on the rail.

  The invention according to claim 5 is a cover installation structure in which the cover according to any one of claims 1 to 3 and a rail are used, and a plurality of covers are provided such that the curved surface of the cover is inside and outside. The cover has a cover installation structure characterized in that two or more sets of rails are used inside and outside, and the inside and outside cover can be moved independently.

  According to the invention described in claim 5, a plurality of covers are used so that the curved surface of the cover is inside and outside, and two or more sets of rails are used inside and outside, and the inside and outside covers are independent. Therefore, the position can be shifted without overlapping the cover, or the cover can be overlapped to the same position, and the opening / closing operation can be easily performed.

  ADVANTAGE OF THE INVENTION According to this invention, it can be made hard to generate | occur | produce the wheel removal of the wheel of an arched cover.

  Hereinafter, specific examples of the present invention will be described. FIG. 1 is a front view showing an installation structure of a cover according to the first embodiment of the present invention. FIG. 2 is a perspective view showing an installation structure of the cover shown in FIG. FIG. 3 is an exploded perspective view showing the main body of the cover. FIG. 4 is an enlarged front view of the vicinity of the end of the cover shown in FIG. FIG. 5 is an enlarged perspective view of the vicinity of the end portion of the cover shown in FIG. FIG. 6 is a perspective view showing a modified example of the wheel portion. FIG. 7 is a side view showing a state in which the inner and outer cover lids are shifted without overlapping. FIG. 8 is a side view showing a state in which the inner and outer cover lids are overlapped.

  The cover 1 in the first embodiment of the present invention is shown in FIGS. 1 and 2 and is installed on a water channel 90 and has a main body portion 10, a wheel portion 11, and a seat portion 12. is there. The cover 1 is curved in the length direction and not curved in the width direction. In addition, both sides of the cover lid 1 in the length direction are disposed at the edges 92 on both sides of the water channel 90.

Water 91 flows through the water channel 90, and a rail 80 is provided near the edge 92 of the water channel 90. The rail 80 is a round bar-like member having a circular cross-sectional outer shape, and is supported by a column 81. In addition, the radius of the cross-sectional outer shape of the rail 80 is set to the radius of the recess of the traveling portion 32 of the wheel 30.
In addition, two rails 80 are provided at each edge 92, the rails 80a disposed on the inner side are for the cover lid 1a disposed on the inner side of the curve, and the rails 80b disposed on the outer side are curved. For the cover lid 1b arranged outside.
The direction of the rail 80 is set in the horizontal direction so as to match the sliding direction of the cover 1, is along the edge 92 of the water channel 90, and is also the width direction of the cover 1.

  The main body 10 is a plate-like body that curves so as to protrude upward. And the distance of the edge parts 20 of the main-body part 10 is longer than the width | variety of the water channel 90, and can cover the water channel 90 at the time of use. In addition, a plurality of cover lids 1 according to the present embodiment are provided so as to be inside and outside of the curve, and the cover lid 1a arranged inside the curve is arranged inside the cover lid 1b arranged outside the curve.

  As shown in FIG. 3, the main body 10 includes a plate member 22 and a bone member 23, and is manufactured by fixing the plate member 22 and the bone member 23.

  The plate member 22 is a rectangular flat plate and can be curved. Further, the length of the plate member 22 is matched with the curved rod 25 of the bone member 23, and the width of the plate member 22 is matched with the length of the connecting rod 26 of the bone member 23.

The bone member 23 has two bending rods 25 and a plurality of connecting rods 26 arranged to connect the bending rods 25 to each other. In addition, the bending degree of the two bending rods 25 is the same, and the bending directions of the two bending rods 25 are the same, and the connection rods 26 are arranged in parallel to each other.
A notch 25a is provided outside the curve of the bending rod 25, and the connecting rod 26 is inserted into the notch 25a.

  Specifically, the bending rod 25 is a laminated plate formed by stacking flat plates, and the laminating direction is set to be inside and outside of the curve. The laminated surfaces are bonded in a state where each laminated plate is curved, and the curved state of the curved rod 25 is maintained. The shape of the bone member 23 is a curved ladder shape.

  Then, as shown in FIG. 3, the plate member 22 is bent so as to match the curve of the bone member 23, and is superimposed on the bone member 23, and the bone member 23 and the plate member 22 are fixed with an adhesive. Thus, the main body 10 is completed.

  The plate member 22, the curved rod 25 and the connecting rod 26 of the bone member 23 are made of the same material, and specifically, urethane resin foam reinforced with long glass fibers is used. In these members, the glass fibers are oriented in the length direction of each member. Specifically, the plate member 22 and the curved rod 25 are glass fibers oriented in the length direction of the cover 1. The fiber has an arc shape, and the connecting rod 26 has glass fibers oriented in the width direction of the cover 1.

As shown in FIGS. 4 and 5, the wheel unit 11 is provided with a wheel 30 and a shaft 31. And the wheel part 11 can move the cover lid 1 smoothly by rotating the wheel 30 while supporting the main body part 10. The shaft 31 is fixed to the main body 10, and the wheel 30 can rotate with respect to the shaft 31.
4 and 5, the wheel 30 is inclined with respect to the vertical direction (the direction of gravity), and the direction of the shaft 31 is the horizontal direction (the direction perpendicular to the direction of gravity). It is inclined with respect to it. The direction of this inclination is the direction in which the upper side of the wheel 30 is the inner side.

  The wheel part 11 is provided with four wheel parts 11 in total, two at each end part 20 with respect to one main body part 10. The positions where the wheel portions 11 are provided are near the end portions 20 on both sides in the length direction of the main body portion 10 and near both ends in the width direction.

  As shown in FIG. 4, the range of the inclination angle θ of the wheel 30 is preferably 10 ° or more and 80 ° or less, and more preferably 30 ° or more and 60 ° or less. If the inclination angle θ is smaller than this range, the wheel 30 described later tends to be removed, and if the inclination angle θ is larger than this range, the weight of the main body 10 can be supported. If not, it will happen.

  The traveling part 32 of the wheel 30 is recessed and concave, and is in contact with the rail 80 fitted in the recess of the traveling part 32. Therefore, the wheel 30 can be rotated in a state in which the rail 80 is fitted in the concave portion of the traveling portion 32 of the wheel 30. Therefore, when moving the cover 1, the wheel 30 is guided to the rail 80, so that the sliding direction of the cover 1 can be stabilized.

  Moreover, the shape of the recessed part of the driving | running | working part 32 is a shape where the cross-sectional shape in the plane containing the axis | shaft 31 of the wheel part 11 is circular arc shape. The arc shape is not limited to a shape that is a part of a perfect circle having the same R (curvature radius) in any part, and R may be different depending on the place. In the wheel 30 of the present embodiment, the traveling portion 32 has a radius R that is substantially equal to the radius of the rail 80.

  The distance between the wheels 30 provided at each end 20 of the main body 10 is different between the cover 1a disposed inside the curve and the cover 1b disposed outside the curve. That is, the distance of the wheel 30 of the cover lid 1a arranged inside the curve is adjusted to the width of the rail 80a arranged inside, and the distance of the wheel 30 of the cover lid 1b arranged outside the curve is arranged outside. The width of the rail 80b is adjusted.

  In addition, it is also possible to employ a structure in which a guide portion 38 is provided to prevent foreign matter and the like from being caught in the wheel 30 as in the wheel portion 11 of the cover 1 shown in FIG.

The sheet portion 12 is attached to both ends of the main body portion 10 and closes a gap formed between the end portion 20 of the main body portion 10 and the edge 92 of the water channel 90. And when covering the water channel 90 using the cover 1, diffusion of the odor etc. which generate | occur | produce from the water 91 etc. of the water channel 90 can be prevented.
The sheet portion 12 is a rubber sheet or the like, but other materials can be used.

When the cover 1 is installed, the wheel 30 is placed on the rail 80 and the rail 80 is disposed below the wheel 30 as shown in FIGS. Is installed so that it protrudes upward. Then, the weight of the cover 1 is supported by the wheel portion 11, and the cover 30 is rotated and easily moved by pushing or pulling the cover 1 in the direction of the rail 80 to rotate the wheel 30. Can do.
The power for moving the cover 1 may be manual or a known power source such as a pneumatic or hydraulic cylinder may be used.

Further, the cover 1 is provided with a cover 1a disposed inside the curve and a cover 1b disposed outside the curve, and these wheels 30 are mounted on separate rails 80a and 80b, respectively. It runs on the rail 80. Therefore, the inner and outer cover lids 1a and 1b can be moved independently, and by moving the positions of the cover lids 1a and 1b relative to each other, as shown in FIG. Also, as shown in FIG. 8, the cover lids 1a and 1b can be overlapped to be in the same position.
Therefore, when confirming the inside of the water channel 90, it can be easily opened as shown in FIG.

  Since the wheel 30 of the wheel part 11 is fitted in the rail 80, the cover 1 can be moved stably. Moreover, since the traveling part 32 of the wheel 30 is inclined so that the upper side is on the inside, the body part 10 is deformed so that the curvature of the body part 10 becomes small, and the end part 20 of the body part 10 moves in the direction of moving outward. When a force is applied, such deformation can be prevented, and the wheel 30 is unlikely to be removed.

Moreover, since the cross-sectional shape of the rail 80 is an arc shape, the state in which the traveling unit 32 is fitted can be maintained even when the inclination angle θ changes. Therefore, it is difficult to remove the wheel, and it is possible to cope with the case where the individual inclination angle θ changes due to variations or the like that occur during manufacturing without special adjustment.
Furthermore, since the cross-sectional shape of the traveling unit 32 is an arc, the contact state between the traveling unit 32 and the rail 80 can be made difficult to change.

  Although the traveling portion 32 of the wheel 30 of the cover 1 described above is recessed and fits on the rail 80, the wheel 30 having another structure may be used. For example, it is possible to use a structure in which a wheel 30 is used so that the traveling unit 32 can be grounded near the edge 92 of the water channel 90 and a member for guiding the cover 1 in the traveling direction is provided.

It is the front view which showed the installation structure of the cover in the 1st Embodiment of this invention. It is a perspective view which shows the installation structure of the cover shown in FIG. It is a disassembled perspective view which shows the main-body part of a cover. It is the front view which expanded the edge part vicinity of the cover shown in FIG. It is the perspective view which expanded the edge part vicinity of the cover shown in FIG. It is a perspective view which shows the modification of a wheel part. It is the side view which showed the state shifted without overlapping an inner and outer cover. It is the side view which showed the state which accumulated the inner and outer cover.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1a, 1b Cover 10 Main-body part 11 Wheel part 20 End part 30 Wheel 31 Axis 32 Traveling part 80, 80a, 80b Rail

Claims (5)

  It has a main body part that curves so as to protrude upward, and a wheel part that is disposed at both ends of the main body part and is provided with a wheel and a shaft. The wheel part shaft is fixed to the main body part, and the wheel part is rotatable. Yes, the main body can be moved by rotating the wheel, and the direction of the axis of the wheel is inclined with respect to the horizontal direction. The cover is characterized in that the wheel is inclined so that the upper side is the inner side.   The traveling part of the wheel is concave, and the wheel rotates with the rail arranged on the lower side of the wheel fitted in the concave part of the traveling part of the wheel, so that the main body part can be moved. The cover according to claim 1.   The cover according to claim 2, wherein a shape of the traveling part of the wheel is such that a cross-sectional shape in a plane including the axis of the wheel part is an arc shape.   A cover installation structure in which the cover and the rail according to claim 3 are used, wherein a cross-sectional shape of the rail in a portion in contact with the wheel is an arc shape corresponding to a concave portion of the traveling portion of the wheel. The characteristic cover installation structure.   A cover installation structure in which the cover according to any one of claims 1 to 3 and a rail are used, wherein a plurality of cover covers are used so that a curved surface of the cover is inside and outside, and the rail is inside and outside A cover installation structure characterized in that two or more sets are used, and the inner and outer cover can be moved independently.

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