JP6633721B1 - Universal joint for long body cover - Google Patents

Abstract

To provide a universal joint capable of connecting two long-sized covers so that the angle can be freely changed while maintaining a desired strength without deteriorating a sense of unity as a whole. A universal joint (1) has an outer side plate (2) to which an outer side connection end, which is a connection end of an outer side cover side plate (70X), is hinged, and an inner side connection end, a connection end of an inner cover side plate (70Y), are slidable. , An outer divided top plate 4 fixed to the outer side plate 2 in a cantilever state, and a cantilevered state fixed to the inner side plate 3 with the inner upper surface portion 51 overlapping the outer upper surface portion 41. And an inner divided top plate 5. [Selection diagram] FIG.

Description

  The present invention relates to a universal joint for a long body cover.

  For example, in an air-conditioning facility used in a building, a factory, a store, and the like, an air-conditioning pipe (an example of a long body) connected between an indoor unit in each air-conditioned room and an outdoor unit on the roof of the building is a long body cover. To protect the air conditioning piping. Normally, each long body cover is straight, and two adjacent long body covers are directly connected in a region where the air-conditioning pipe is arranged in a straight line, while two areas are bent in a region where the air-conditioning pipe is bent. An elongated body cover is connected via a joint.

  An example of a joint for a long body cover is disclosed in JP-A-2017-211039 (Patent Document 1). The joint [universal joints 7 and 8] of Patent Document 1 is capable of connecting two long body covers [piping cover 3] so that the angle can be freely changed. Such a universal joint is preferable because it can cope with various bending angles of the air-conditioning pipe only by preparing a single type.

  However, the universal joint of Patent Literature 1 is formed of a bellows-shaped cloth main body, and is significantly different in both appearance and material from a long body cover. For this reason, when the two long body covers are connected to each other via the universal joint, there is a drawback that the design lacks a sense of unity as a whole. In addition, it is difficult to maintain the strength of the connection portion, and the connection portion is vulnerable to external force, so that there is a possibility that the protection of the elongated body accommodated inside is insufficient.

JP 2017-211039 A

  It is desired to realize a universal joint that can connect two long-sized covers so that the angle can be freely changed while maintaining a desired strength without deteriorating a sense of unity as a whole.

The universal joint for a long body cover according to the present invention,
Two elongate body covers each including a pair of cover side plates arranged to face each other in the width direction and a cover top plate having a stepped portion along the cover side plates and fixed to the pair of cover side plates can be freely angled. A universal joint that connects to
An outer side plate to which an outer connection end portion, which is a connection end portion of an outer cover side plate arranged outside after connection of the pair of cover side plates, is hinged,
An inner side plate to which an inner connection end which is a connection end of an inner cover side plate arranged inside after connection of the pair of cover side plates is slidably connected,
An outer divided top plate having a step portion along the outer side plate and an outer upper surface portion extending in a plane from the step portion, and fixed in a cantilever state to the outer side plate,
An inner side having a stepped portion along the inner side plate and an inner upper surface portion extending in a plane from the stepped portion, wherein the inner upper surface portion is fixed to the inner side plate in a cantilever state in a state of overlapping with the outer upper surface portion. A divided top plate.

  According to this configuration, the angle of the outer cover side plate hinged to the outer side plate can be changed by swinging with respect to the outer side plate. Since the inner cover side plate integrally formed with the outer cover side plate is slidably connected to the inner side plate via the cover top plate, the inner cover side plate is swung by the sliding operation. It can follow the movement. This makes it possible to change the angle of the long body cover including the outer cover side plate and the inner cover side plate with respect to the outer side plate and the inner side plate. As a result, two long body covers connected via the long body cover universal joint can be appropriately connected to each other in accordance with the angle between them. At this time, the inner divided top plate and the outer divided top plate are fixed to the inner side plate or the outer side plate with the inner upper surface portion and the outer upper surface portion overlapping. For example, unlike the case where a cloth material is used to make it possible to change the intersection angle between the two elongated body covers, a desired strength can be easily secured. The outer side plate and the inner side plate can have the same shape as the cover side plate of the elongated body cover, and the outer divided top plate and the inner divided top plate have shapes similar to the cover top plate of the elongated body cover. However, the sense of unity as a whole is not impaired. Therefore, it is possible to realize a universal joint that can connect the two elongated covers so that the angles can be freely changed while maintaining a desired strength without impairing the sense of unity as a whole.

  Hereinafter, preferred embodiments of the present invention will be described. However, the scope of the present invention is not limited by the following preferred embodiments.

In one aspect,
The inner side plate has an elongated hole through which an inner connecting member for connecting the inner side plate and the inner connection end of the inner cover side plate is inserted,
It is preferable that the inner connection end is slidable with respect to the inner side plate as the inner connection member slides in the elongated hole.

  According to this configuration, the inside connection end can be slid with respect to the inside side plate by sliding the inside connection member in the long hole. Thereby, the inner cover side plate having the inner connection end portion as a part can be slid with respect to the inner side plate, and the inner cover side plate can follow the swing of the outer cover side plate accompanying the angle change. .

In one aspect,
The outer side plate has a hole through which an outer connecting member that hinges the outer side plate and the outer connection end of the outer cover side plate is inserted,
It is preferable that the long hole is formed in an arc shape centering on the hole in plan view.

  According to this configuration, the outer cover side plate can be hingedly connected to the outer side plate so as to be swingable about the hole. And since the long hole formed in the inside side plate is an arc shape centering on the above-mentioned hole portion in plan view, the inside cover side plate connected to the inside side plate by the inside connection member inserted into the long hole, the hole It is easy to smoothly follow the outer cover side plate swinging about the portion.

In one aspect,
The outer side plate, an outer central plate portion along the vertical direction, an outer upper flange portion extending along the width direction from an upper portion of the outer central plate portion, and a width direction from a lower portion of the outer central plate portion to the width direction. An outer lower flange portion extending along the
The inner side plate is an inner central plate portion extending in the up-down direction, an inner upper flange portion extending along the width direction from an upper portion of the inner central plate portion, and a lower portion of the inner central plate portion extending in the width direction. And an inner lower flange portion extending along the
The hole is formed in the outer lower flange portion,
It is preferable that the long hole is formed in the inner lower flange portion.

  According to this configuration, a hole that penetrates the outer lower flange in the thickness direction can be provided by using the outer lower flange that extends along the width direction. Similarly, by utilizing the inner lower flange portion extending along the width direction, a long hole penetrating the inner lower flange portion in the thickness direction can be provided. This makes it possible to easily realize a configuration in which the elongated body cover slides and swings. Further, since the hole and the long hole are formed in the lower flange portion of the outer side plate and the inner side plate, respectively, for example, when fixed on a gantry, for the configuration and fixing to swing the elongated cover. Can also be used.

In one aspect,
It is preferable that a reinforcing material that receives and supports the inner divided top plate and the outer divided top plate from below is bridged between the inner upper flange portion and the outer upper flange portion.

  According to this configuration, using the inner upper flange portion and the outer upper flange portion extending along the width direction, it is possible to provide a reinforcing member that receives and supports the inner divided top plate and the outer divided top plate from below. it can. Thus, for example, the strength of the inner divided top plate and the outer divided top plate against external force from above can be increased.

In one aspect,
The inner divided top plate is formed larger than the outer divided top plate,
It is preferable that an overlapping region where the outer divided top plate and the inner divided top plate overlap each other is formed closer to the outer side plate than the inner side plate.

  When the two elongated body covers are connected so as to have a predetermined crossing angle, each member is densely packed in the inner region of the connection portion, which also serves as reinforcement. In contrast, the outer region of the connection portion has a large gap between the members, and may not have sufficient strength. Therefore, as in this configuration, by forming an overlapping region where the outer divided top plate and the inner divided top plate overlap with each other on the outer side plate side rather than the inner side plate, the outer side in the connection portion between the two elongated body covers is formed. The strength of the area can be increased. In particular, in the case where a plurality of reinforcing members to be bridged between the inner side plate and the outer side plate are arranged in a line in the direction in which the two long body covers are arranged, the interval between the plurality of reinforcing members becomes narrower in the inner region. At the same time, the area becomes wider in the outer region, so that the merit of this configuration can be sufficiently enjoyed.

  Further features and advantages of the technology according to the present disclosure will become more apparent from the following description of exemplary and non-limiting embodiments described with reference to the drawings.

FIG. 2 is a schematic view illustrating a usage state of the universal joint according to the embodiment. Exploded perspective view of a long body cover Perspective view of universal joint Partial exploded perspective view of a universal joint A perspective view showing the peripheral structure of the outer side plate. Perspective view showing the peripheral structure of the inner side plate Explanatory diagram when changing the angle between two elongated body covers Explanatory diagram when changing the angle between two elongated body covers

  An embodiment of a universal joint for a long body cover will be described with reference to the drawings. In the present embodiment, the universal joint 1 used together with the elongated cover 7 that covers an air-conditioning pipe (an example of the elongated body 9) will be described as an example on the roof of a building such as a building, a factory, and a store. The universal joint 1 is configured so that the two long body covers 7 can be connected to each other so that the angle can be freely changed. More specifically, the universal joint 1 is configured such that the two elongated body covers 7 can be connected to each other so that the plane angle can be freely changed. The “plane angle” is an angle formed in a horizontal plane.

  As shown in FIG. 1, on the roof of a building, a pigeon hut 91 for raining and a plurality of outdoor units 92 are installed. An air conditioning pipe (elongated body 9) extending from the outdoor unit 92 is introduced from the pigeon hut 91 to the indoor side and connected to an indoor unit (not shown). On the rooftop of the building, the air-conditioning pipe (elongated body 9) is protected by being covered with a plurality of elongate body covers 7 and the universal joint 1 installed along the installation route. Since the universal joint 1 connects the two long object covers 7 to be connected so that the angle can be freely changed, unlike the case where a joint having a fixed angle (30 °, 45 °, 60 °, etc.) is used, the universal joint 1 is constructed. It is preferable because it can respond flexibly according to the situation at the site.

  The elongated body cover 7 and the universal joint 1 are fixed to a plurality of substantially inverted U-shaped pedestals 8 installed at predetermined intervals. Further, the elongated body cover 7 is connected to a water stop sleeve 95 provided in the pigeon hut 91 via a vertical corner joint 94.

  As shown in FIG. 2, the long body cover 7 to be connected by the universal joint 1 has a pair of cover side plates 70 arranged to face each other in the width direction W, and a cover top plate fixed to the pair of cover side plates 70. 75. The cover side plate 70 includes a cover central plate 71, a cover upper flange 72, and a cover lower flange 73. The cover center plate portion 71 is formed to extend along the longitudinal direction L, and is arranged along the up-down direction H. The cover upper flange portion 72 extends inward in the width direction W from an upper portion of the cover central plate portion 71. The cover lower flange portion 73 extends inward in the width direction W from the lower portion of the cover center plate portion 71. An obliquely extending inclined surface portion may be provided between the cover central plate portion 71 and the cover upper flange portion 72 and between the cover central plate portion 71 and the cover lower flange portion 73, respectively, as shown in FIG. Shows such an example.

  In the present embodiment, the longitudinal direction L is a direction along the arrangement path of the elongated body 9, and may be a different direction depending on the position of the arrangement path, for example, when the elongated body 9 is bent. (See FIG. 3 etc.). Further, the width direction W is a direction orthogonal to the arrangement route of the elongated body 9 in the horizontal plane, and similarly, may be a different direction depending on the position of the installation route. When the longitudinal direction L and the width direction W are referred to in the description of each member described below, unless otherwise specified, the direction at the arrangement position of the member in a state where the whole is assembled is intended. Shall be

  Cover lower flange portions 73 of a pair of cover side plates 70 facing each other in the width direction W are connected by a plurality of connection members 74 arranged at predetermined intervals in the longitudinal direction L. A space surrounded by the pair of cover side plates 70 and the plurality of connecting members 74 is a space for disposing the elongated body 9, and the elongated body 9 is supported by the plurality of connecting members 74 from below, They are arranged along the longitudinal direction L.

  The cover top plate 75 is detachably fixed to the pair of cover side plates 70 so as to cover upper openings of the pair of cover side plates 70. The cover top plate 75 has a cover upper surface portion 76, a step portion 77, and an extended side portion 78. The cover upper surface portion 76 is formed in a rectangular shape extending in the longitudinal direction L and the width direction W, and is arranged along a horizontal plane. The cover upper surface portion 76 may be formed in a flat plate shape, or may be formed with, for example, ribs for increasing strength and a plurality of small protrusions for preventing slippage.

  The step portion 77 is formed as an inclined surface portion, and is formed along the cover side plate 70 (along the longitudinal direction L). The steps 77 are provided on both sides in the width direction W, and the cover top plate 75 has a pair of steps 77. The extension side portion 78 is formed along the cover side plate 70 (along the longitudinal direction L) so as to extend outside the step portion 77 in the width direction W. The extension side portion 78 is arranged along a horizontal plane, and is placed on the cover upper flange portion 72 when the cover top plate 75 is fixed to the pair of cover side plates 70.

  A reinforcing member 79 is also provided between the pair of cover side plates 70 and the cover top plate 75 in a state of being bridged between the pair of cover side plates 70. The reinforcing member 79 is placed on the cover upper flange portion 72. The reinforcing member 79 is disposed in an offset space between the extension side portion 78 and the cover upper surface portion 76 due to the presence of the step portion 77, and receives the cover top plate 75 (specifically, the cover upper surface portion 76) from below. To support.

  The cover side plate 70, the connecting member 74, the cover top plate 75, and the reinforcing member 79 constituting the elongated body cover 7 are formed of a steel plate. These can be formed of, for example, a plated steel plate or a stainless steel plate. These materials having weather resistance are preferable because they can be suitably used for a long period of time even outdoors exposed to rain and wind.

  As shown in FIG. 3, the universal joint 1 is disposed between two elongated body covers 7 arranged in the longitudinal direction L, and connects the two elongated body covers 7 to each other so that the angle can be changed. In other words, each of the two long body covers 7 is linear, but the two long body covers 7 connected by the universal joint 1 so as to have a predetermined angle are bent as a whole. In the present embodiment, of the pair of cover side plates 70 constituting one elongated body cover 7, the one disposed outside after connection is referred to as an outer cover side plate 70 </ b> X, and the pair of cover side plates 70 is disposed inside after connection. This is referred to as an inner cover side plate 70Y.

  As shown in FIGS. 3 and 4, the universal joint 1 is fixed to the outer side plate 2 to which the outer cover side plate 70X is connected, the inner side plate 3 to which the inner cover side plate 70Y is connected, and the outer side plate 2 in a cantilevered state. And an inner divided top plate 5 that is fixed to the inner side plate 3 in a cantilevered state. In the present embodiment, the universal joint 1 further includes a reinforcing member 6 that receives and supports the outer divided top plate 4 and the inner divided top plate 5 from below.

  The outer side plate 2 and the inner side plate 3 are arranged to face each other in the width direction W, and are supported by the gantry 8 from below. In the present embodiment, the outer side plate 2 disposed on the outer side and the inner side plate 3 disposed on the inner side are configured such that the lengths in the longitudinal direction L (the direction orthogonal to the width direction W in plan view) are equal. (See FIG. 7 and the like). Hereinafter, the configuration of the outer side plate 2 and the inner side plate 3 will be described.

  FIG. 5 is a perspective view showing the peripheral structure of the outer side plate 2 well, and elements not particularly necessary for explaining the peripheral structure of the outer side plate 2 are not shown. For example, in FIG. 5, the cover top plate 75, the outer divided top plate 4, the inner divided top plate 5, and the like shown in FIGS. 3 and 4 are not displayed, and the outer cover side plate 70X is indicated by a virtual line. In addition, in FIG. 6, the peripheral structure of the inner side plate 3 is well illustrated along the same purpose.

  As shown in FIG. 5, the outer side plate 2 has a hole 23h through which the outer connecting member 24 for hinge-connecting the outer side plate 2 and the outer connecting end 70Xe, which is the connecting end of the outer cover side plate 70X, is inserted. The outer connection end 70Xe is hingedly connected to the outer side plate 2. This makes it possible to swing the outer cover side plate 70X with respect to the outer side plate 2. In the present embodiment, holes 23h are provided on both sides of the outer side plate 2 in the longitudinal direction L, and the outer connection end 70Xe of the outer cover side plate 70X is hinged. In this example, the outer connecting member 24 includes a bolt and a nut.

  In the present embodiment, the outer side plate 2 includes an outer central plate portion 21 extending in the up-down direction H, an outer upper flange portion 22 extending from an upper portion of the outer central plate portion 21 in the width direction W, and an outer central plate portion. And an outer lower flange portion 23 extending along the width direction W from the lower portion of the outer flange 21. Between the outer central plate portion 21 and the outer upper flange portion 22, and between the outer central plate portion 21 and the outer lower flange portion 23, an inclined surface portion extending diagonally may be provided. An example of such a configuration is shown.

  The outer central plate portion 21 is formed in a plate shape. The outer central plate portion 21 may be formed in a flat plate shape, or may be formed with, for example, ribs for increasing strength, a plurality of small protrusions for preventing slippage, and the like. In the illustrated example, a rib extending in the longitudinal direction L is formed on the outer central plate portion 21.

  The outer upper flange portion 22 extends toward the inner side plate 3 (inside) in the width direction W. In the present embodiment, one end of the reinforcing member 6 is connected to the outer upper flange portion 22. Although details will be described later, the other end of the reinforcing member 6 is connected to the inner upper flange portion 32 of the inner side plate 3. In the illustrated example, the outer upper flange portion 22 is formed in a plate shape having a triangular shape in a plan view, and an insertion hole into which the first fastening member t1 is inserted is provided at a vertex of the triangular shape. . One end of the reinforcing member 6 is fastened to the outer upper flange portion 22 by the first fastening member t1. The first fastening member t1 may be configured to include, for example, a bolt, a nut, and a washer.

  The outer lower flange portion 23 extends toward the inner side plate 3 (inside) in the width direction W. In the present embodiment, the outer lower flange portion 23 is formed in a long plate shape along the longitudinal direction L. The outer cover side plate 70X of the elongated body cover 7 is connected to each of both side portions of the outer lower flange portion 23 in the longitudinal direction L. In the present embodiment, the above-described hole 23h, that is, the hole 23h through which the outer connection member 24 that hinges the outer side plate 2 and the outer connection end 70Xe is inserted is formed in the outer lower flange portion 23. . As shown in FIG. 5, the holes 23 h are formed in the outer lower flange 23 at both sides in the longitudinal direction L so as to penetrate the outer lower flange 23 in the vertical direction H.

  The hole 23h is formed in a size equivalent to the diameter of the outer connection member 24 (bolt) (specifically, slightly larger than the diameter of the outer connection member 24), and is formed by a round hole having no screw portion. It is configured. Similarly, the outer connection end 70Xe of the outer cover side plate 70X is formed to have a size equivalent to the diameter of the outer connection member 24 (bolt) (specifically, slightly larger than the diameter of the outer connection member 24). And a round hole having no screw portion. Thus, in a state where the outer connecting member 24 is inserted through both the hole 23h and the round hole of the outer connecting end 70Xe, the outer side plate 2 and the outer cover side plate 70X are hinged so that they can swing freely. Is done.

  At the time of assembling, the bolt (the outer connecting member 24) is inserted from above into the round hole and the hole 23h of the outer connecting end 70Xe, and the bolt (the outer connecting member 24) is further inserted below the upper surface of the gantry 8. Is inserted through the insertion hole formed in the frame 8 so as to protrude from the back surface of the gantry 8. The outer side plate 2 and the outer cover side plate 70X are fixed to the gantry 8 by screwing a nut (outside connection member 24) to a bolt (outside connection member 24) projecting from the back surface of the gantry 8.

  Next, the configuration of the inner side plate 3 will be described. As shown in FIG. 6, the inner side plate 3 has a long hole 33h through which an inner connecting member 34 for connecting the inner side plate 3 and the inner connecting end 70Ye, which is a connecting end of the inner cover side plate 70Y, is inserted. The inner connection plate 70Ye is slidably connected to the inner side plate 3. As the inner connecting member 34 slides in the elongated hole 33h, the inner connecting end 70Ye is slidable with respect to the inner side plate 3. Thus, the inner cover side plate 70Y can be slid with respect to the inner side plate 3. Here, the inner cover side plate 70Y and the outer cover side plate 70X are elements constituting one elongated body cover 7, and are in an integral relationship. According to the above configuration, since the inner cover side plate 70Y can be slid with respect to the inner side plate 3, the inner cover side plate 70Y can follow the swing of the outer cover side plate 70X with respect to the outer side plate 2. In the present embodiment, a long hole 33h is provided on each side of the inner side plate 3 in the longitudinal direction L, and the inner connection end 70Ye of the inner cover side plate 70Y is slidably connected. In this example, the inner connecting member 34 is configured to include a bolt and a nut.

  In the present embodiment, the inner side plate 3 includes an inner central plate portion 31 extending in the up-down direction H, an inner upper flange portion 32 extending from an upper portion of the inner central plate portion 31 in the width direction W, and an inner central plate portion. And a lower inner flange portion 33 extending along the width direction W from a lower portion of the lower portion 31. Between the inner central plate portion 31 and the inner upper flange portion 32 and between the inner central plate portion 31 and the inner lower flange portion 33, an inclined surface portion that extends diagonally may be provided. An example of such a configuration is shown.

  The inner central plate portion 31 is formed in a plate shape. The inner central plate portion 31 may be formed in a flat plate shape, or may be formed with, for example, ribs for increasing strength, a plurality of small protrusions for preventing slippage, and the like. In the illustrated example, a rib is formed on the inner central plate portion 31 along the longitudinal direction L (see also FIG. 5).

  The inner upper flange portion 32 extends toward the outer side plate 2 side (outside) in the width direction W. Here, as described above, one end of the reinforcing member 6 is connected to the outer upper flange portion 22 of the outer side plate 2. In the present embodiment, the other end of the reinforcing member 6 is connected to the inner upper flange portion 32. In the illustrated example, the inner upper flange portion 32 has a rectangular shape in which a central portion in the longitudinal direction L projects most to the side (outside) of the outer side plate 2 in a plan view, and both sides adjacent to the central portion in the longitudinal direction L. The portion is formed in a plate-like shape that expands in the longitudinal direction L as the portion approaches the inner central plate portion 31. An insertion hole into which the first fastening member t1 is inserted is provided in a rectangular central portion of the inner upper flange portion 32. The other end of the reinforcing member 6 is fastened to the inner upper flange 32 by a first fastening member t1. The first fastening member t1 may be the same as that used for fastening one end of the reinforcing member 6 to the outer upper flange portion 22 as described above.

  The inner lower flange portion 33 extends toward the outer side plate 2 side (outside) in the width direction W. In the present embodiment, the inner lower flange portion 33 is formed in a long plate shape along the longitudinal direction L. In the illustrated example, the central portion of the inner lower flange portion 33 in the longitudinal direction L protrudes most toward the outer side plate 2 (outside), and both side portions adjacent to the central portion in the longitudinal direction L correspond to the inner central plate. The skirt spreads in the longitudinal direction L as approaching the portion 31. In other words, the inner lower flange portion 33 is formed in a plate shape having a substantially trapezoidal shape in plan view. The inner cover side plate 70Y of the elongated body cover 7 is connected to each of both side portions of the inner lower flange portion 33 in the longitudinal direction L. In the present embodiment, the above-described elongated hole 33h, that is, the elongated hole 33h through which the inner connection member 34 for connecting the inner side plate 3 and the inner connection end 70Ye is inserted is formed in the inner lower flange portion 33. I have. As shown in FIG. 6, the long holes 33 h are formed in the inner lower flange 33 at both sides in the longitudinal direction L so as to penetrate the inner lower flange 33 in the vertical direction H.

  7 and 8, in the present embodiment, the elongated hole 33h is formed in an arc shape centered on the hole 23h provided in the outer side plate 2 in plan view. The inner connection end 70Ye of the inner cover side plate 70Y is formed to have a size equivalent to the diameter of the inner connection member 34 (bolt) (specifically, slightly larger than the diameter of the inner connection member 34). It has a round hole without a thread. Then, in a state where the inner connecting member 34 is inserted through both the elongated hole 33h and the round hole of the inner connecting end 70Ye, the inner connecting member 34 is slid so as to draw an arc around the hole 23h of the outer side plate 2. By doing so, when the outer cover side plate 70X swings around the hole 23h (the outer connecting member 24) of the outer side plate 2, the inner cover side plate 70Y can follow the swing of the outer cover side plate 70X. .

  At the time of assembling, the bolt (the inner connecting member 34) is inserted from above into the round hole and the elongated hole 33h of the inner connecting end 70Ye, and the bolt (the inner connecting member 34) is further inserted below the upper surface of the gantry 8. Is inserted through the insertion hole formed in the frame 8 so as to protrude from the back surface of the gantry 8. Then, the inner side plate 3 and the inner cover side plate 70 </ b> Y are fixed to the gantry 8 by screwing a nut (inside connection member 34) to a bolt (inside connection member 34) projecting from the back surface of the gantry 8.

  In the present embodiment, the elongate body cover includes a swing mechanism X that swings the outer cover side plate 70X with respect to the outer side plate 2 and a slide mechanism Y that slides the inner cover side plate 70Y with respect to the inner side plate 3. An angle adjusting mechanism Z that adjusts the connection angle of 7 is configured. In this example, the swing mechanism X is configured to include a hole 23h provided in the outer side plate 2 and an outer connecting member 24 inserted into the hole 23h. The slide mechanism Y is configured to include an elongated hole 33h provided in the inner side plate 3 and an inner connecting member 34 inserted into the elongated hole 33h.

  In the present embodiment, the universal joint 1 includes a pair of angle adjusting mechanisms Z each including a swing mechanism X and a slide mechanism Y, which are separated from each other in the longitudinal direction L. That is, the swing mechanism X and the slide mechanism Y arranged on the same side in the longitudinal direction L of the universal joint 1 constitute (at least a part of) one angle adjusting mechanism Z. With such a configuration, the universal joint 1 according to the present embodiment has the connection angle of the elongated body cover 7 connected on one side in the longitudinal direction L and the elongated body cover 7 connected on the other side in the longitudinal direction L. It is possible to change both the connection angle and the connection angle.

  In the present embodiment, as shown in FIG. 7 and FIG. 8, a scale 33a displayed along the long hole 33h is provided around the long hole 33h. In the illustrated example, the scale portion 33a is provided around the elongated hole 33h on the upper surface of the inner lower flange portion 33. Thereby, it becomes easy to visually recognize the connection angle of the elongated body cover 7 with respect to the universal joint 1. In particular, like the universal joint 1 according to the present embodiment, an angle adjusting mechanism Z is provided on both sides in the longitudinal direction L, and the connection angle of the pair of elongated body covers 7 connected to both sides in the longitudinal direction L can be adjusted. In such a case, by adjusting the angle while visually recognizing the scale portion 33a, the connection angles of the pair of elongated body covers 7 can be easily adjusted to each other.

  As shown in FIGS. 5 and 6, in the present embodiment, the reinforcing member 6 that receives and supports the inner divided top plate 5 and the outer divided top plate 4 (see FIG. 4) from below includes the inner side plate 3 and the outer side plate 2. And is spanned. In the illustrated example, the reinforcing member 6 extends over the inner upper flange portion 32 and the outer upper flange portion 22. As described above, one end of the reinforcing member 6 is fastened to the outer upper flange portion 22 by the first fastening member t1, and the other end of the reinforcing member 6 is fastened to the inner upper flange portion 32 by the first fastening member t1. Have been.

  In this embodiment, in addition to the reinforcing member 6, a movable reinforcing member 61 that receives and supports the inner divided top plate 5 and the outer divided top plate 4 from below is provided. The movable reinforcing member 61 includes a connection-side end (an end on the side of the universal joint 1 in the longitudinal direction L) of the outer cover side plate 70X and a connection-side end (the end of the universal joint 1 in the longitudinal direction L) of the inner cover side plate 70Y. Side end). Therefore, the posture of the movable reinforcing member 61 changes as the outer cover side plate 70X swings and the inner cover side plate 70Y slides. In other words, the movable reinforcing member 61 is configured to swing around the end connected to the outer cover side plate 70X as the angle of the elongated body cover 7 changes. The end of the movable reinforcing member 61 connected to the inner cover side plate 70Y moves so as to approach or separate from the end of the reinforcing member 6 connected to the inner side plate 3 (the inner upper flange portion 32). In the present embodiment, such movable reinforcing members 61 are disposed on both sides of the reinforcing member 6 in the longitudinal direction L. Therefore, as shown in FIGS. 5 and 6, as the angle between the two elongated body covers 7 decreases, the space between the reinforcing member 6 and the two movable reinforcing members 61 in the inner region decreases, and these members are densely packed. Will do. In contrast, in the outer region, the distance between the reinforcing member 6 and the two movable reinforcing members 61 is increased.

  As shown in FIG. 4, the outer divided top plate 4 and the inner divided top plate 5 are fixed in a state of being placed on the reinforcing member 6 (in this example, two movable reinforcing members 61 in addition to this). .

  As described above, the outer divided top plate 4 is fixed to the outer side plate 2 in a cantilever state. As shown in FIG. 4, the outer divided top plate 4 has a step portion 42 along the outer side plate 2 and an outer upper surface portion 41 extending from the step portion 42 in a plane. The outer upper surface portion 41 extends toward the inner side plate 3 (inside) in the width direction W. The outer upper surface portion 41 may be formed in a flat plate shape, or may be formed with, for example, ribs for increasing strength, a plurality of small protrusions for preventing slippage, and the like. In the present embodiment, a through hole 41h penetrating in the vertical direction H is formed in the outer upper surface portion 41. The outer divided top plate 4 is fastened to the reinforcing member 6 by a second fastening member t2 (for example, a screw or a screw) that passes through the through hole 41h and the insertion hole formed on the upper surface of the reinforcing member 6. In the illustrated example, such through holes 41h are formed in both the outer region and the inner region in the width direction W of the outer upper surface portion 41.

  As shown in FIG. 4, the inner divided top plate 5 has a step 52 along the inner side plate 3 and an inner upper surface 51 extending from the step 52 in a planar manner. The inner upper surface portion 51 extends toward the outer side plate 2 (outside) in the width direction W. The inner upper surface portion 51 may be formed in a flat plate shape, or may be formed with, for example, ribs for increasing strength, a plurality of small protrusions for preventing slippage, and the like. The inner divided top plate 5 is fixed to the inner side plate 3 in a cantilever state with the inner upper surface portion 51 overlapping the outer upper surface portion 41 of the outer divided top plate 4. In the present embodiment, a through hole 51h penetrating in the up-down direction H is formed in the inner upper surface portion 51. The inner split top plate 5 is fastened to the reinforcing member 6 by a second fastening member t2 (for example, a screw or a screw) that passes through the through hole 51h and the insertion hole formed on the upper surface of the reinforcing member 6. In the illustrated example, such through-holes 41h are formed in the central region, the inner region, and the outer region in the width direction W on the inner upper surface portion 51. The through holes 51h formed in each of the central region and the outer region in the width direction W of the inner upper surface portion 51 are arranged so as to overlap in plan view with the through holes 41h formed in the outer upper surface portion 41 of the outer side plate 2. Is done. Then, in each of the central region and the outer region in the width direction W of the inner upper surface portion 51, the second fastening member t2 is formed in the through hole 51h formed in the inner upper surface portion 51 and the outer upper surface portion 41. The through hole 41h and the insertion hole formed in the reinforcing member 6 are inserted. Thereby, the inner divided top plate 5, the outer divided top plate 4, and the reinforcing member 6 are fixed.

  As shown in FIG. 4, in the present embodiment, the inner divided top plate 5 is formed larger than the outer divided top plate 4. In the illustrated example, the length in the width direction W of the inner divided top plate 5 is longer than the length of the width direction W of the outer divided top plate 4, and more specifically, the width direction W of the outer divided top plate 4. Is about twice as long as In this example, the length in the longitudinal direction L of the inner divided top plate 5 and the length in the longitudinal direction L of the outer divided top plate 4 are substantially the same.

  In the present embodiment, an overlapping area A where the outer divided top plate 4 and the inner divided top plate 5 overlap is formed on the outer side plate 2 side with respect to the inner side plate 3. When the two elongated body covers 7 are connected so as to have a predetermined crossing angle, the inner region of the connection portion is denser in each member and the strength is increased. The gap between the members is widened and it is difficult to secure sufficient strength. In particular, in this example, as described above, the smaller the angle between the two elongated body covers 7 is, the narrower the space between the reinforcing member 6 and the two movable reinforcing members 61 is in the inner region, and these are densely packed. become. In contrast, in the outer region, the distance between the reinforcing member 6 and the two movable reinforcing members 61 is increased. However, as in the above configuration, the overlapping region A where the outer divided top plate 4 and the inner divided top plate 5 overlap is formed on the outer side plate 2 side than the inner side plate 3, so that the outer region of the connection portion is formed. Can be improved in strength. Thereby, it is possible to secure a well-balanced strength of the universal joint 1 as a whole.

  As described above, the universal joint 1 includes the outer side plate 2, the inner side plate 3, the outer divided top plate 4, and the inner divided top plate 5 as constituent elements. These components are formed of a steel plate, and can be formed of, for example, a plated steel plate or a stainless steel plate. These materials having weather resistance are preferable because they can be suitably used for a long period of time even outdoors exposed to rain and wind. In addition, since it is excellent in strength, it is strong against external force and can sufficiently protect the elongated body 9 housed inside.

  Furthermore, if the universal joint 1 and the elongated body cover 7 are made of the same material, and if both are made of a steel plate, in addition to the improvement of the weather resistance and the strength, the sense of unity as a whole is improved to improve the design. It is more preferred because it can

  The connection of the two long body covers 7 using the universal joint 1 of the present embodiment can be performed by the following construction procedure.

  First, the cover side plates 70 (the outer cover side plate 70X and the inner cover side plate 70Y) are temporarily fixed to the gantry 8. Then, the outer side plate 2 is inserted between the outer cover side plate 70X and the gantry 8 in the vertical direction H, and the outer side plate 2 and the outer cover side plate 70X are temporarily fixed. At that time, the outer connecting member 24 is inserted into the hole 23h provided in the outer side plate 2 and the hole provided in the outer connecting end 70Xe of the outer cover side plate 70X, and temporarily fixed in a loosely tightened state. The inner side plate 3 is inserted between the inner cover side plate 70Y and the gantry 8 in the vertical direction H, and the inner side plate 3 and the inner cover side plate 70Y are temporarily fixed. At this time, the inner connecting member 34 is inserted through the elongated hole 33h provided in the inner side plate 3 and the hole provided in the inner connecting end 70Ye of the inner cover side plate 70Y, and temporarily fixed in a loosely tightened state.

  Next, the angle of the outer cover side plate 70X and the inner cover side plate 70Y with respect to the universal joint 1 is adjusted by the angle adjusting mechanism Z. Specifically, the outer cover side plate 70X is swung at a desired angle with respect to the outer side plate 2 by the swing mechanism X, and the inner cover side plate 70Y is slid with respect to the inner side plate 3 by the slide mechanism Y. Follow the swing of 70X. At this time, it is preferable that the angle is adjusted while checking the scale portion 33a provided on the inner side plate 3 because the angle can be easily adjusted to a desired angle. When the angle adjustment is completed, the outer connection member 24 is fully tightened, the outer cover side plate 70X is fully fixed to the outer side plate 2, the inner connection member 34 is fully tightened, and the inner cover side plate is fixed to the inner side plate 3. 70Y is permanently fixed.

  Next, the reinforcing member 6 is attached to the outer side plate 2 and the inner side plate 3, and the movable reinforcing member 61 is attached to the outer cover side plate 70X and the inner cover side plate 70Y.

  Thereafter, the outer divided top plate 4 is placed from above the reinforcing member 6 (and the movable reinforcing member 61), and the inner divided top plate 5 is further placed thereon to form the overlap region A. After the outer divided top plate 4 and the inner divided top plate 5 are placed on the reinforcing member 6 (and the movable reinforcing member 61), the inner divided top plate 5 and the outer divided top plate 4 are set using the second fastening member t2. And the reinforcing member 6 are fixed.

  According to the construction procedure described above, the two long body covers 7 can be connected by the universal joint 1.

[Other embodiments]
Next, other embodiments of the universal joint 1 will be described.

(1) In the above embodiment, the configuration in which the elongated hole 33h provided in the inner side plate 3 is formed in an arc shape centering on the hole 23h provided in the outer side plate 2 in plan view has been described as an example. . However, without being limited to such a configuration, the elongated hole 33h may be formed at least along the direction in which the inner connection end 70Ye of the inner cover side plate 70Y slides along with the angle adjustment. For example, the long hole 33h may be formed in a straight line or a broken line.

(2) In the above-described embodiment, an example has been described in which the hole 23h through which the outer connecting member 24 that hinges the outer side plate 2 and the outer cover side plate 70X is inserted is formed in the outer lower flange portion 23. However, without being limited to this, the hole 23h may be formed in, for example, the outer upper flange portion 22. Further, in the above-described embodiment, the configuration in which the elongated hole 33h through which the inner connecting member 34 that slides and connects the inner side plate 3 and the inner cover side plate 70Y is formed in the inner lower flange portion 33 has been described as an example. Without being limited to this, the elongated hole 33h may be formed in the inner upper flange portion 32, for example.

(3) In the above embodiment, the universal joint 1 is described as an example in which the reinforcing member 6 is provided to receive and support the outer divided top plate 4 and the inner divided top plate 5 from below. Is not a required component. Similarly, the movable reinforcing member 61 is not an essential component.

(4) In the above embodiment, the configuration in which the inner divided top plate 5 is formed larger than the outer divided top plate 4 has been described as an example. However, without being limited to such a configuration, the outer divided top plate 4 may be formed larger than the inner divided top plate 5, or the inner divided top plate 5 and the outer divided top plate 4 may be They may be formed in the same size.

(5) In the above embodiment, the universal joint 1 is provided with a pair of angle adjusting mechanisms Z each including a rocking mechanism X and a sliding mechanism Y in a state of being separated in the longitudinal direction L. It was explained as. However, without being limited to such a configuration, the universal joint 1 may include the angle adjusting mechanism Z only on one side in the longitudinal direction L. That is, on the other side of the universal joint 1 in the longitudinal direction L, the elongated body cover 7 may be connected so that the angle cannot be adjusted.

(6) The configuration disclosed in each of the above-described embodiments can be applied in combination with the configuration disclosed in another embodiment as long as no contradiction occurs. Regarding other configurations, the embodiments disclosed in this specification are merely examples in all respects. Therefore, various modifications can be appropriately made without departing from the spirit of the present disclosure.

  The technology according to the present disclosure can be used for a universal joint for a long body cover.

1: universal joint 2: outer side plate 21: outer central plate 22: outer upper flange 23: outer lower flange 23h: hole 24: outer connecting member 3: inner side plate 31: inner central plate 32: inner upper flange Part 33: inner lower flange part 33h: long hole 34: inner connecting member 4: outer divided top plate 41: outer upper surface part 42: stepped part 5: inner divided top plate 51: inner upper surface part 52: stepped part 6: reinforcing material 7: Long body cover 70: Cover side plate 70X: Outer cover side plate 70Xe: Outer connection end 70Y: Inner cover side plate 70Ye: Inner connection end A: Overlapping area H: Vertical direction L: Longitudinal direction W: Width direction

Claims (6)

Two long body covers each including a pair of cover side plates arranged to face each other in the width direction and a cover top plate having a stepped portion along the cover side plates and fixed to the pair of cover side plates, as a whole A universal joint that is connected to be able to change the angle so as to form a bend ,
A pair of the cover side plates, an outer cover side plate disposed outside a bent portion after the connection of the long body covers, and an inner cover side plate disposed inside the bent portion with respect to the outer cover side plate. , Including
An outer side plate to which an outer connection end which is a connection end of the outer cover side plate is hinged,
An inner side plate to which an inner connection end which is a connection end of the inner cover side plate is slidably connected,
An outer divided top plate having a step portion along the outer side plate and an outer upper surface portion extending planarly from the step portion, and fixed in a cantilever state to the outer side plate,
An inner side having a stepped portion along the inner side plate and an inner upper surface portion extending in a plane from the stepped portion, wherein the inner upper surface portion is fixed to the inner side plate in a cantilever state in a state of overlapping with the outer upper surface portion. Split top plate,
A universal joint for a long body cover comprising: The inner side plate has an elongated hole through which an inner connecting member for connecting the inner side plate and the inner connection end of the inner cover side plate is inserted,
The universal joint for a long body cover according to claim 1, wherein the inner connection end is slidable with respect to the inner side plate as the inner connection member slides in the elongated hole. The outer side plate has a hole through which an outer connecting member that hinges the outer side plate and the outer connection end of the outer cover side plate is inserted,
The universal joint for a long body cover according to claim 2, wherein the long hole is formed in an arc shape centering on the hole in plan view. The outer side plate, an outer central plate portion along the vertical direction, an outer upper flange portion extending along the width direction from an upper portion of the outer central plate portion, and a width direction from a lower portion of the outer central plate portion to the width direction. An outer lower flange portion extending along the
The inner side plate is an inner central plate portion extending in the up-down direction, an inner upper flange portion extending along the width direction from an upper portion of the inner central plate portion, and a lower portion of the inner central plate portion extending in the width direction. And an inner lower flange portion extending along the
The hole is formed in the outer lower flange portion,
The universal joint for a long body cover according to claim 3, wherein the elongated hole is formed in the inner lower flange portion.   The elongated member according to claim 4, wherein a reinforcing member that receives and supports the inner divided top plate and the outer divided top plate from below is bridged between the inner upper flange portion and the outer upper flange portion. Universal joint for body cover. The inner divided top plate is formed larger than the outer divided top plate,
The elongated body cover according to any one of claims 1 to 5, wherein an overlapping region where the outer divided top plate and the inner divided top plate overlap is formed on the outer side plate side with respect to the inner side plate. Universal joint.

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