TWI480445B - Track relay and trolley transport system - Google Patents

Description

Track relay device and trolley transport system

The present invention relates to a track relay device that is disposed at a joint portion between a track and a track, can absorb the expansion and contraction of rails of each track, and connects the track and the track; and has a track relay device The trolley transport system.

A conventional track relay device constituting a trolley transport system has been disclosed in Patent Document 1. The track relay device 201 is as shown in Fig. 14. The traveling rail 211 includes a pair of rails 212 that are arranged in a slightly parallel arrangement at a constant interval. Each of the rails 212 is configured by connecting a rail 212a and a rail 212c of a specific length. The track relay device 201 is a device for connecting the "joining portion 213 of the rail 212a and the rail 212c". As shown in Fig. 14, the rail relay device 201 is provided with an engagement rail 202 and a spring pushing means 208. The joint rail 202 is provided such that its base end 203 can be centered and rocked in the horizontal direction. The base end 203 faces the end 214 of the rail 212c. Further, an inclined surface 206 for gradually narrowing the running surface 205 is provided at the front end 204 of the joint rail 202. Further, at the end portion 215 of the rail 212a, an inclined surface 216 corresponding to the inclined surface 206 of the joint rail 202 is formed. The pushing means 208 pushes the front end 204 of the engaging rail 202 toward the end 215 of the rail 212a, and the two inclined faces 206, 216 are brought into abutment with respect to each other.

[Patent Document 1] Japanese Patent Laid-Open No. 60-65801

According to the above-described prior art, it is possible to absorb a change in position when the rails 212a, 212c are stretched or contracted due to a change in the temperature, or when the rails 212a and the rails 212c are offset from each other in the horizontal direction due to an earthquake or the like. . Having said that, there is a problem in that when the rails are displaced from each other in the height direction, the change in position is not absorbed, that is, the step generated between the inclined faces 206 and 216.

In view of the above problems, it is an object of the present invention to provide a track relay device capable of absorbing an expansion and contraction of a rail, an offset in a horizontal direction and a height direction, and a trolley transport system including a track relay device.

According to a first aspect of the present invention, the "a pair of rails arranged in parallel at a constant interval" and the "a pair of rails arranged on the extension line of the pair of rails at the same interval are parallel to each other. The rail relay device of the joint portion between the strips is intended to include a pair of telescopic mechanisms, a connecting arm, and a universal joint, and each of the telescopic mechanisms includes a plurality of telescopic mechanisms disposed along the longitudinal direction of the rail. a joint rail and a frame that supports the joint rail so as to be slidable along the longitudinal direction of the rail, wherein the connecting arm is slidably attached to the frame along a running surface of the joint rail, and connects the pair In each frame of the telescopic mechanism, the universal joint is disposed at both ends of the telescopic mechanism, and connects the rails and the telescopic mechanism.

The telescopic mechanism may also have: as the plurality of the joint rails a first engagement rail, a second engagement rail, and a third joint rail arranged in sequence along the longitudinal direction of the rail; and a first rack provided on the first joint rail; and scrollably a first pinion gear that is supported by the second joint rail and that is engaged with the first rack; a second rack that is provided on the third joint rail; and a second joint that is rollably rolled The rail is supported by the rail and is engaged with the second rack, and forms a rolling second pinion together with the first pinion. The first joint rail and the third joint rail may be brought close to or separated by the cooperative rolling of the first and second pinions.

The telescopic mechanism may further include: a guide rail disposed on one of the joint rail and the frame and extending along a length direction of the rail; and being disposed on the other of the joint rail and the frame, and The linear guide of the aforementioned guide rail is sandwiched freely.

According to a second aspect of the present invention, a trolley transport system including the above-described rail relay device is provided with: a rail guide that is erected along a longitudinal direction of one of the frame and the rail; And a guide wall erected along the length direction of the frame and the other of the rails; and a pair of guide wheels having "the above-mentioned rail guides are held from both sides and can be simultaneously rotated" And forming a trolley that can travel on the two pairs of rails; the guide wall is disposed at a position where the pair of guide wheels can be contacted from the outside.

According to the invention, it is absorbable: the rail extension caused by the change of the temperature Shrinkage, and the horizontal and horizontal offsets between one of the rails and the other due to an earthquake.

Hereinafter, the first embodiment of the present invention will be described with reference to the drawings.

As shown in Fig. 1, the truck transport system 1A of the present embodiment includes a rail relay device 2A, a traveling rail 111, and a bogie 101. The traveling rail 111 is placed in a factory building or the like as a "transportation route of the trolley 101 for transporting parts and the like". The traveling rail 111 is mainly composed of a pair of rails 112 that are "arranged in parallel at a constant interval". A pair of rails 112, for example, have a pair of rails 112a and a pair of rails 112c. Each of the rails 112a is arranged in parallel at a constant interval, and each of the rails 112c is arranged in parallel on the extension line of the end 113a of the rail 112a at the same interval as the rail 112a. Next, the track relay device 2A forms a relay between adjacent traveling tracks 111. Specifically, the track relay device 2A is a joint portion 110 provided at the end portion 113a and the end portion 113c. The above-mentioned walking track 111 is, for example, provided in an adjacent building. Further, since the traveling rail 111 is laid over a wide area such as the outside of the house, it can be divided into a plurality of track units (not shown in the drawing). In this case, the track relay device 2A is provided in the joint portion 110 of the rail unit, and the rail units are connected. The above-mentioned "parallel arrangement of a pair of rails" means a parallel arrangement in which the actual travel of the carriage 101 is not hindered. That is, the arrangement of a pair of rails in the present invention is not limited to the "very precise requirements for parallelism". Set.

As shown in FIGS. 1 to 5, the track relay device 2A of the present embodiment includes: a pair of telescopic mechanisms 11 disposed in the respective joint portions 110; and a connecting arm 41 that connects the pair of telescopic mechanisms 11; Both ends of each of the telescopic mechanisms 11 are fixed to the fixing portions 51 of the end portions 113a and 113c of the rails 112a and 112c. The fixing portion 51 has a universal joint 52. The universal joint 52 can form a pitch in the up and down direction, a skew in the left and right direction (skew, yaw), and can roll around the axis along the longitudinal direction of the track. In other words, the universal joint 52 connects the expansion and contraction mechanism 11 to each of the rails 112a and 112c so as to be rotatable in the vertical direction and the horizontal direction and can be rolled around the axis along the longitudinal direction of the rail.

The telescopic mechanism 11 is disposed in each of the joint portions 110 that are arranged in a slightly parallel manner. Further, the telescopic mechanism 11 includes three engagement rails 12 that are sequentially arranged along the longitudinal direction of the rail, and a frame 31 that supports the above-described joint rails 12 so as to be slidable along the longitudinal direction of the rail. For convenience of explanation, the three joint rails 12 are sequentially referred to as the first joint rail 12a, the second joint rail 12b, and the third joint rail 12c from the left side of the third diagram (a).

As shown in Fig. 5, the first joined rail 12a includes a top plate 13a, a vertical wall 14a, and a bottom plate 15a which form an I-shaped cross section. The first joint rail 12a is provided along the longitudinal direction of the rail. The second joint rail 12b includes a top plate 13b and a vertical wall 14b which form a T-shaped cross section. The second joint rail 12b is also disposed along the longitudinal direction of the rail. Similarly to the first joint rail 12a, the third joint rail 12c has a top plate 13c, a vertical wall 14c, and a bottom plate 15c which form an I-shaped cross section. The third joint rail 12 is also with other The joint rails 12a, 12b are identical and are disposed along the length of the rail. Next, the traveling plates 16a, 16b, and 16c are provided on the respective top plates 13a, 13b, and 13c of the joint rails 12a, 12b, and 12c, respectively. The traveling boards 16a, 16b, 16c are, for example, flat plates. On the upper surfaces of the traveling plates 16a, 16b, and 16c, running faces 17a, 17b, and 17c which are the running faces (track running faces) 17 of the engaging rails 12 that can be placed and traveled by the carriage 101 are formed.

As shown in Figs. 4 and 5, a rack 21a is provided on the upper surface of the bottom plate 15a of the first joint rail 12a. The rack 21a is provided along the longitudinal direction of the rail and is engaged with the pinion 22a.

Further, a rack 21c is also provided on the back surface (lower surface) of the top plate 13c of the third joint rail 12c. The rack 21c is provided along the longitudinal direction of the rail and is engaged with the pinion 22c. As shown in Fig. 5, the rack 21a and the pinion 22a, the rack 21c, and the pinion 22c are in the left-right direction (horizontal direction) when viewed from the longitudinal direction of the rail, and the second joint rail 12b is interposed therebetween. The vertical wall 14b is positioned on the opposite side to each other, and the rack 21a and the rack 21c are positioned on the opposite sides of each other across the support shaft 23 in the vertical direction (vertical direction). Further, the pinion gear 22a and the pinion gear 22c are fixed to the support shaft 23. The support shaft 23 penetrates the vertical wall 14b of the second joint rail 12b, and the frame 31 provided on both sides thereof is supported to be rollable. Alternatively, the support shaft 23 can be rotatably supported by the vertical wall 14b of the second joint rail 12b. Therefore, once one of the engaging rail 12a and the engaging rail 12c moves along the longitudinal direction of the rail, the pinions 22a, 22c will cooperatively roll through the support shaft 23 in response to the movement, thus engaging the rail 12a The other of the joint rails 12c will be along the length of the track Move in the opposite direction to and with the same moving distance. In other words, the joint rail 12a and the joint rail 12c will form close to or separate from each other. The amount of movement of the engaging rails 12a and the engaging rails 12c is defined by the length of the racks 21a, 21c.

As shown in Fig. 3, the running surface 17a of the first joined rail 12a has an end edge 18a. The end edge 18a obliquely intersects the longitudinal direction of the rail, and the width of the running surface 17a is gradually narrowed. The running surface 17b of the second joint rail 12b has an end edge 18ba facing the end edge 18a. The end edge 18ba obliquely intersects the longitudinal direction of the rail, and the width of the running surface 17b is gradually narrowed toward the first joint rail 12a. The angle formed by the end edge 18a and the end edge 18ba in the longitudinal direction of the track may be the same angle, and may be different from each other without causing interference such as collision.

The same end edge as described above is also formed in the running surface 17c of the third joint rail 12c facing the "walking surface 17b and the running surface 17b of the second joint rail 12b". That is, the running surface 17b of the second joined rail 12b has an end edge 18bc on the side opposite to the side on which the end edge 18a is formed in the longitudinal direction of the rail. The end edge 18bc obliquely intersects the longitudinal direction of the rail, and the width of the running surface 17b is gradually narrowed toward the third joint rail 12c. The running surface 17c of the third joined rail 12c has an end edge 18c facing the end edge 18bc. The end edge 18c obliquely intersects the longitudinal direction of the rail, and the width of the running surface 17c is gradually narrowed toward the second joint rail 12b. The angle formed by the end edge 18bc and the end edge 18c in the longitudinal direction of the rail may be the same angle, and may be different from each other without causing interference such as collision.

As shown in FIG. 5, the frame 31 has two side walls 32, 32 which are disposed along the longitudinal direction of the rail and which are vertically disposed in the up and down direction, and a bottom wall 33 which is connected between the lower edges of the two side walls 32, 32. . The frame 31 has a substantially U-shaped cross section and forms an opening toward the upper side (i.e., the running surface). In other words, the frame 31 is formed in a shape having "a groove extending along the longitudinal direction of the track". Further, at the center of the inner surface of the bottom wall 33, a guide rail 34 extending in the longitudinal direction of the rail is provided. The guide rail 34 supports a linear guide 24, which will be described later, so as to be freely slidable, and restricts the moving direction of the linear guide 24. The guide rail 34 has, for example, a front end side closer to the bottom wall 33 side, that is, a thicker (wider) cross section than the base end side.

Next, the linear guides 24 are provided at two positions on the lower edge portions of the respective vertical walls 14a and 14c of the first joint rail 12a and the third joint rail 12c. Each linear guide 24 is a front end portion that sandwiches the guide rail 34 and slides on the guide rail 34. Further, the frame 31 supports the first joint rail 12a, the second joint rail 12b, and the third joint rail 12c by the linear guide 24, the guide rail 34, and the support shaft 23.

The connecting arm 41 is attached to each of the frames 31 so as to be rockable along the running surface 17 of the joining rail 12, and connects the pair of frames 31 adjacent in parallel. The connecting arm 41 is formed in a beam shape having a substantially U-shaped cross section, and has a connecting portion 42 at both ends thereof. The connecting portion 42 is such that the connecting arm 41 is formed to be movable along the running surfaces 17a, 17b, and 17c, and the connecting arm 41 is coupled to each of the frames 31. In this way, the "rolling along the axis along the longitudinal direction of the telescopic mechanism 11 as the center" is prevented, and the derailment of the trolley 101 from the running faces 17a, 17b, 17c is prevented. In order to obtain this shaking, the connecting portion 42 is constituted by, for example, a pin (a single-axis joint) whose central axis faces the vertical direction.

As shown in Fig. 7, the track relay device 2A of the present embodiment expands and contracts by the "strength of the dimension ±ΔX set along the longitudinal direction of the track" by the expansion and contraction of the telescopic mechanism 11, and absorbs the rails. The spacing of the joints 110 of 112a, 112c varies. In other words, the telescopic mechanism 11 is formed to expand and contract in accordance with the "change in the joint portion 110 due to the change in the length of the rails 112a, 112c". As a result, the carriage 101 can smoothly travel on the running surface 17a of the rails 112a and 112c, 17c.

Further, as shown in Fig. 8, the track relay device 2A of the present embodiment is rocked along the running surfaces 17a, 17b, and 17c by the universal joint 52 of the fixing portion 51, and is along the rail 112a, The surface of the running surface 17 of 112c is oscillated within the range of the size ± ΔY set in the track width direction, and absorbs the "offset in the track width direction of the joint portion 110 of the rails 112a and 112c". In other words, in accordance with the change in the relative position of the rails 112a, 112c in the horizontal direction, the telescopic mechanism 11 swings the horizontal joint 52 as a fulcrum, and as a result, the trolley 101 can smoothly walk on the rails 112a and 112c. On the faces 17a, 17c.

Further, as shown in Fig. 9, the track relay device 2A of the present embodiment is orthogonal to the running faces 17a, 17b, and 17c by the universal joint 52 of the fixing portion 51, and is rocked, and is orthogonal to the rails. The faces of the running faces 17 of 112a and 112c are formed to be shaken in a range of the size ±ΔZ set in the vertical direction of the rails, and the rails of the rails 112a and 112c are offset in the vertical direction of the rails. In other words, the matching rail When the relative positions of the 112a and 112c are changed in the vertical direction, the telescopic mechanism 11 oscillates the vertical surface with the universal joint 52 as a fulcrum, and as a result, the trolley 101 can smoothly travel on the running faces 17a and 17c of the rails 112a and 112c. on.

The track relay device 2A according to the present embodiment is "stretched in the range of the size ±ΔX set along the longitudinal direction of the track" and "swinged in the range of the size ±ΔY set in the track width direction". "Swinging within the range of ±ΔZ set in the vertical direction of the track", it is possible to absorb: the expansion and contraction of the rails 112a, 112c due to the change in temperature; and the occurrence of one of the rails 112a due to an earthquake or the like The horizontal direction between the other rails 112c and the offset in the vertical direction.

Further, since the telescopic mechanism 11 is formed to be expanded and contracted by the meshing between the rack and the pinion, the configuration thereof is not complicated, and the expansion and contraction of the joint rail can be surely performed with a simple structure. Further, in the first, second, and third joint rails 12a, 12b, and 12c constituting the joint rail, the first joint rail 12a and the third joint rail 12c can be separated from the second joint rail 12b. , the same size movement is formed along the length of the track.

Next, the respective end edges 18a, 18ba, 18bc, and 18c of the running faces 17a, 17b, and 17c are formed to obliquely intersect the longitudinal direction of the track. Therefore, the running surface which is the contact target of the wheel 102 of the carriage 101 gradually changes from one of the running surfaces toward the other running surface. Accordingly, the vibration acting on the carriage 101 can be reduced as compared with the case where the end edge is set to be orthogonal to the longitudinal direction of the rail.

Moreover, since the linear guide 24 covers the front end of the guide rail 34 Since it can be slid freely, the structure is not complicated, and the expansion and contraction of the joint rail 12 can be surely performed with a simple structure.

The number of the linear guides 24 provided on the guide rails 34 is not limited to the two positions shown in the embodiment, and may be increased or decreased depending on the size in the longitudinal direction of the rail or the weight of the trolley including the conveyed object. Further, the shape of the guide rail 34 and the linear guide 24 is not limited to the shape shown in this embodiment, and it is possible to form a guide for "sliding along the longitudinal direction of the rail of the joint rail 12", and the frame 31 is provided. The shape of the joint rail 12 can be supported, and other shapes can be used.

In the present embodiment, the guide rail 34 is provided on the bottom wall 33 of the frame 31, and the linear guide 24 is provided on the first joint rail 12a and the third joint rail 12c. Alternatively, the guide rails 34 may be provided on the first joint rails 12a and the third joint rails 12c, and the linear guides 24 may be provided on the bottom wall 33 of the frame 31. Also in this case, the same operational effects as those of the former can be obtained.

The number of the connecting arms 41 is not limited to two as shown in the embodiment. In other words, the number of the connecting arms 41 may be increased or decreased depending on the size (size) of the track relay device 2A or the weight of the trolley 101 containing the conveyed object. For example, a link arm 41 may be disposed at a central portion of the pair of frames 31. In either case, it can stop scrolling. In addition, the connecting arm 41 of the present embodiment may have a structure that "expands and contracts in the longitudinal direction". In this case, in addition to suppressing the rolling, it is possible to correspond to the rails 112, 112 of various intervals.

Further, in the above embodiment, the rack and the pinion are used. The meshing mechanism causes the telescopic mechanism 11 to have a telescopic structure. However, as shown in the telescopic mechanism 61 of Fig. 6, the telescopic mechanism may have a telescopic structure of "using a chain and a sprocket". In this case, the expansion/contraction mechanism 61 includes a first chain 63a, a second chain 63c, and a first sprocket 62a and a second sprocket 62c that are rotatably supported on both end sides of the second engagement rail 12b. For convenience of explanation, when the left direction of Fig. 6 is referred to as the front and the right direction is referred to as the rear, the first sprocket 62a is provided on the front end side of the second joined rail 12b, and the second sprocket 62c is provided on the rear end side of the second joint rail 12b. The first chain 63a is wound around the second sprocket 62c, and one end thereof is fixed to the front end side of the first joint rail 12a, and the other end is fixed to the front end side of the third joint rail 12c. In addition, the second chain 63c is wound around the first sprocket 62a, and one end thereof is fixed to the rear end side of the first joint rail 12a, and the other end is fixed to the rear end side of the third joint rail 12c. . Even in the configuration described above, the first joining rail 12a and the third joining rail 12c can be moved in the opposite directions at substantially the same distance and substantially at the same time as the configuration using the rack and the pinion. That is, the telescopic mechanism 11 can be formed to expand and contract. Instead, a combination of a belt and a pulley, or the same transmission mechanism as described above, may be used instead of a combination of a chain and a sprocket.

Next, a second embodiment of the present invention will be described with reference to FIG. In the tenth figure, the same structure as the "contents shown in the above first to ninth figures" is attached, and the same drawing numbers are indicated.

The difference between the bogie transport system 1B of the present embodiment and the bogie transport system 1A of the first embodiment is the structure of the telescopic mechanism 71 that constitutes the track relay device 2B. The expansion and contraction mechanism 11 of the first embodiment is It consists of three joint rails. Further, as shown in Fig. 10, the expansion and contraction mechanism 71 of the second embodiment is composed of two joint rails 82 (the first joint rail 82a and the second joint rail 82c). Further, in the present embodiment, the racks and pinions are not driven by the first and second joint rails 82a and 82c. Instead, the telescopic mechanism 71 has a linear guide 24 and a guide rail 34. Specifically, the guide rails 34 are erected on the bottom wall 33 of the frame 31, and the linear guides 24 sandwich the front end portion of the guide rails 34 and are slidable on the guide rails 34 freely.

Compared with the track relay device 2A, the track relay device 2B can surely perform the expansion and contraction of the joint rail 82 in a more compact configuration. Therefore, the track relay device 2B is more suitable for a track having a small amount of expansion and contraction in the longitudinal direction of the track or a track having a small interval in which the joint portion 110 of the track relay device 2B is provided.

Next, a third embodiment of the present invention will be described with reference to Figs. 11 to 13 . In the 11th to 13th drawings, the structures equal to those shown in the first to the tenth drawings are denoted by the same drawing numbers.

In the bogie transport system 1C of the first embodiment, the difference between the bogie transport systems 1A and 1B of the first and second embodiments is that the guide is provided in the side wall 32 of the frame 31 constituting the track relay device 2C. Wall 35. The expansion/contraction mechanism of the present embodiment may have the same structure as that of the second embodiment as shown in Fig. 11, and may have the structure of the first embodiment. Further, rails 112a, 112c provided with the track relay device 2C have rail guides 114 formed of strip members. Rail guide 114 is erected along the length of the track. In other words, the rail guide 114 is disposed to extend in the longitudinal direction of the rail, and the width direction of the strip member is a vertical direction toward the rail. Further, the carriage 101 of the present embodiment has a pair of guide wheels 103 (hereinafter, simply referred to as guide wheels) that hold the rail guides 114 from both sides (left and right sides with respect to the direction of progress). The other structure of the carriage 101 is the same as that of the above embodiments.

The guide wall 35 is provided at a position where the pair of guide wheels 103 can be contacted from the side. For example, as shown in FIGS. 11 to 13 , from the center of the rail 111, the guide wall 35 is disposed along the side wall 32out and is located outside the pair of guide wheels 103. Therefore, the guide wall 35 is in contact with the traveling direction of the carriage 101, and contacts the pair of guide wheels 103 from the right side or the left side. The guide wall 35 has a guide portion 35a and an introduction portion 35b. The guide portion 35a is formed, for example, by a belt-shaped member having an L-shaped cross section, and its inner surface faces the side wall 32out. The dimension L1 of the guide portion 35a along the side wall 32out is set to be equal to or larger than the "interval of the joint portion 110 when the joint portion 110 is formed to be the widest state". The introduction portion 35b is also a belt-shaped member and is disposed at both ends of the guide portion 35a. The introduction portion 35b is provided such that its inner surface faces the side wall 32out and is gradually separated from the side wall 32out. The interval L2 between the guide portion 35a and the side wall 32out is set to be specific between the guide wheel 103 and the guide wall 35 in a state where the guide wheel 103 holds the rail guide 114 from both sides. A gap between lengths (such as around 1/4R). R means the diameter of the wheel 103a constituting the guide wheel 103. In this way, the trolley 101 on the track relay device 2C, even when it is returned to the rail 112, even guides the wheel 103 When the guide wall 35 is rotated, the rail guide 114 can also be easily inserted between the guide wheels 103, with the result that the trolley 101 can be returned to the rail 112.

The guide wall 35 is fixed to the upper portion of the bracket 36. The bracket 36 is formed in a cross section having, for example, an L shape, and is fixed to the side wall 32out from the center of the rail 111 toward the outside. The side wall 32out is the one of the outer side walls 32, 32 of the frame 31.

While the carriage 101 is traveling on the rails 112a, 112c, the guide wheels 103 hold the rail guides 114. Therefore, the trolley 101 can travel on the walking surface 17 without derailment.

Further, since the interval of the joint portion 110 is changed, the same rail guide 114 as the rails 112a, 112c cannot be provided. In order to solve this problem, in the present embodiment, the guide wall 35 is provided at a position outside the guide wheel 103 of the carriage 101. Therefore, in the case where the trolley 101 is about to be derailed from the joint rail 12, the guide wheel 103 will rotate on the inner surface of the guide wall 35, and the carriage 101 will be pushed back to the running faces 17a, 17b, 17c, and as a result, Prevents derailment.

In the aspect shown in Fig. 11, the rail guide 114 is erected along the rails 112a, 112c, and the guide wall 35 is erected along the side wall 32out outside the frame 31. Alternatively, the rail guide 114 may be erected along the side wall 32out outside the frame 31, and the guide wall 35 may be erected along the rails 112a, 112c. Even in this case, the same operational effects as those of the above embodiment can be obtained.

In addition, the guiding wall 35 can also be arranged in: a central view from the track 111 The inner side of the pair of guide wheels 103 is inward (in other words, between the rail guide 114 and the rails 112a, 112c). Also in this case, the same operational effects as those of the above embodiment can be obtained.

However, the present invention is not limited to the above embodiment, and the present invention package Including: the disclosure of the scope of the patent application, or the scope of the patent application All changes and meanings within the scope are described.

[Industrial Availability]

The present invention provides a rail relay device that can absorb the expansion and contraction of the rail, the horizontal direction and the height direction, and a trolley transport system including the rail relay device.

1A‧‧‧Trolley transport system

1B‧‧‧Trolley transport system

1C‧‧‧Trolley transport system

2A‧‧‧Track relay

2B‧‧‧Track relay

2C‧‧‧Track relay

11‧‧‧Flexing mechanism

12‧‧‧Joint rail

12a‧‧‧1st joint rail

12b‧‧‧2nd joint rail

12c‧‧‧3rd joint rail

13a‧‧‧ top board

13b‧‧‧ top board

13c‧‧‧ top board

14a‧‧‧ vertical wall

14b‧‧‧ vertical wall

14c‧‧‧ vertical wall

15a‧‧‧floor

15c‧‧‧floor

16a‧‧‧Travel board

16b‧‧‧Travel board

16c‧‧‧Travel board

17‧‧‧Walking surface (track walking surface)

17a‧‧‧Walking surface

17b‧‧‧walking surface

17c‧‧‧walking surface

18a‧‧‧ edge

18b‧‧‧ edge

18ba‧‧‧ edge

18bc‧‧‧ edge

18c‧‧‧ edge

21a‧‧‧Rack

21c‧‧‧Rack

22a‧‧‧小小齿轮

22c‧‧‧ pinion

23‧‧‧Support shaft

24‧‧‧Linear Guides

31‧‧‧Frame

32‧‧‧ side wall

32out‧‧‧ side wall

33‧‧‧ bottom wall

34‧‧‧rails

35‧‧‧ Guide wall

35a‧‧‧Guidance

35b‧‧‧Importing Department

36‧‧‧ bracket

41‧‧‧ Linking arm

42‧‧‧Connecting Department

51‧‧‧ Fixed Department

52‧‧‧ universal joint

61‧‧‧Flexing mechanism

62a‧‧‧1st sprocket

62c‧‧‧2nd sprocket

63a‧‧‧1st chain

63c‧‧‧2nd chain

71‧‧‧Flexing mechanism

82‧‧‧Join rails

82a‧‧‧1st joint rail

82c‧‧‧2nd joint rail

101‧‧‧Trolley

102‧‧‧ Wheels

103‧‧‧Guide wheels

103a‧‧‧ Wheels

110‧‧‧ joints

111‧‧‧walking track

112‧‧‧ rails

112a‧‧‧Roads

112c‧‧‧ rails

113a‧‧‧End

113c‧‧‧End

114‧‧‧Road guides

Fig. 1 is a plan view showing a state in which the rail relay device according to the first embodiment of the present invention is installed in a bogie transport system.

Fig. 2 is a perspective view of a track relay device according to a first embodiment of the present invention.

Fig. 3 is a view showing a rail relay device according to a first embodiment of the present invention, wherein (a) is a plan view and (b) is a side view.

Fig. 4 is a side view showing the state in which the front side wall of the frame is removed from the track relay device according to the first embodiment of the present invention.

Fig. 5 is a cross-sectional view taken along line V-V of Fig. 3(b).

Fig. 6 is a schematic view showing another embodiment of the expansion and contraction mechanism according to the first embodiment of the present invention.

Fig. 7 is a perspective view showing a state in which a telescopic mechanism according to an embodiment of the present invention is formed into an expansion and contraction.

Fig. 8 is a plan view showing a state in which the telescopic mechanism of one embodiment of the present invention is shifted in the horizontal direction.

Fig. 9 is a side view showing a state in which the telescopic mechanism of one embodiment of the present invention is shifted in the height direction.

Fig. 10 is a perspective view showing a second embodiment of the present invention.

Figure 11 is a plan view showing a third embodiment of the present invention.

Fig. 12 is a perspective view showing a third embodiment of the present invention.

Figure 13 is a cross-sectional view showing a third embodiment of the present invention.

Fig. 14 is a plan view showing a conventional track relay device.

1A‧‧‧Trolley transport system

2A‧‧‧Track relay

11‧‧‧Flexing mechanism

41‧‧‧ Linking arm

101‧‧‧Trolley

102‧‧‧ Wheels

103‧‧‧Guide wheels

110‧‧‧ joints

111‧‧‧walking track

112‧‧‧ rails

112a‧‧‧Roads

112c‧‧‧ rails

113a‧‧‧End

113c‧‧‧End

114‧‧‧Road guides

Claims (5)

A track relay device is a track relay device provided at a joint portion, the joint portion being located at a pair of rails arranged in parallel at a constant interval; and the same on an extension line of the pair of rails The other pair of rails arranged in parallel are provided with a pair of telescopic mechanisms, a connecting arm, and a universal joint, and each of the telescopic mechanisms includes a plurality of the plurality of telescopic mechanisms disposed along the longitudinal direction of the rail. a joint rail and a frame that supports the joint rail so as to be slidable along the longitudinal direction of the rail, wherein the connecting arm is slidably attached to the frame along a running surface of the joint rail, and connects the pair In each frame of the telescopic mechanism, the universal joint is disposed at both ends of the telescopic mechanism, and connects the rails and the telescopic mechanism. The track relay device according to the first aspect of the invention, wherein the telescopic mechanism includes: a first bonding rail and a second bonding rail arranged in sequence along the longitudinal direction of the rail as the plurality of bonding rails; a third joint rail; a first rack provided on the first joint rail; and a first small rack that is rotatably supported by the second joint rail and engaged with the first rack a gear; and a second rack provided on the third joint rail; and rotatably supported by the second joint rail and engaged with the foregoing The second rack forms a rolling second pinion gear together with the first pinion gear, and the first joint rail and the third joint rail are formed by cooperative rolling of the first and second pinions. Approaching or separating. The track relay device according to claim 1, wherein the telescopic mechanism includes: a guide rail provided on one of the joint rail and the frame and extending along a longitudinal direction of the rail; and The joint rail and the other of the frames are slidably sandwiched by the linear guides of the aforementioned guide rails. The rail relay device according to claim 2, wherein the telescopic mechanism includes: a guide rail provided on one of the joint rail and the frame and extending along a longitudinal direction of the rail; and The joint rail and the other of the frames are slidably sandwiched by the linear guides of the aforementioned guide rails. A trolley transport system is a pallet transport system including the rail relay device according to any one of claims 1 to 4, characterized in that it comprises: one of the frame and the rail, a rail guide erected in a longitudinal direction thereof; and a guide wall erected along the length of the frame and the other of the rails; and a pair of guiding wheels having the above-mentioned rail guides and rotating in the same direction from both sides, and forming a trolley that can walk on the two pairs of rails, the guiding wall is provided: from the side Contacting the position of the aforementioned pair of guiding wheels.