JPH1096202A - Structure of connection between rails for transportation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a structure of connection between rails with the capability of forming yoke materials in intermediate parts or end parts without being bent into the same shape and besides, performing connection welding firmly by reducing the numbers thereof in the welding direction and shortening the length of welding lines and, moreover, carrying out rail connection with accuracy utilizing yoke materials without implementing almost no removal of distortion. SOLUTION: End yoke materials 21 are formed into a plane with the same shape as the intermediate yoke materials. By welding predetermined parts of the yoke materials 21 to predetermined faces of each rail 11, 15, connection is executed between rails 11, 15. In this instance, when connection is carried out between the end yoke materials 21 by means of connecting tools 26, by interposing intermediate materials 24 therebetween for welding margins A connection force operates on the intermediate materials 24, whereas it does not operate between the rail end faces 11b, 11b or between yoke materials 21 where distortions occur easily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rail-to-rail connection structure for a transport facility used in a suspended transport facility for transporting a vehicle body on a fixed path on a ceiling side, for example, in an automobile assembly plant. is there.

[0002]

2. Description of the Related Art Conventionally, as this type of rail-to-rail connection structure, for example, a trolley conveyor rail as disclosed in Japanese Utility Model Laid-Open Publication No. 53-115586 has been provided. That is, a power line rail made of an I-shaped member and a pair of left and right free line rails made of a C-shaped member and having their open portions opposed to each other are arranged. And connected at both ends by connecting yokes.

[0003] The connecting yoke has a projecting portion which is integrally extended and bent at right angles to the inside of both lower ends thereof. Then, with the back surface of the free line rail being in surface contact with the inner surface of the overhang portion, welding using the edge of the overhang portion is carried out, so that the outer surface of the connection yoke and the rail end surface of the free line rail. Are flush with each other, and both are connected. The trolley conveyor rail and the connecting yoke are similarly connected using a reinforcing rib plate or the like.

In order to connect the rails in the longitudinal direction, a connecting tool composed of a bolt and a nut is applied between the communicating through holes in a state where the outer surfaces of both connecting yokes are in contact with each other. It is done in.

[0005]

However, according to the above-described conventional type, two types of yokes are required, a connecting yoke having an overhang and an intermediate connecting yoke having no overhang. Therefore, the manufacture of the yoke, especially the manufacture of the connecting yoke, is troublesome, and furthermore, a dedicated device for bending the overhang is required. Further, in the welding using the edge of the overhang, there is welding along the rail length direction, and since the length of the welding line is long, the entire welding takes time.

Furthermore, when connecting the outer surfaces of the connecting yokes to each other in the longitudinal direction of the rails, the connecting yokes are deformed due to welding distortion or the like. Cannot be easily released as desired. On the other hand, distortion removal is performed, but this distortion removal takes time.

According to the first aspect of the present invention, the yoke material at the intermediate portion and the end portion can be formed in the same shape without bending, and the welding for connection is performed in the number of welding directions. Less and the length of the welding line is shortened, making it possible to perform firmly.Furthermore, the rail connection using the yoke material at the end is
It is an object of the present invention to provide a rail-to-rail connection structure for transport equipment that can be performed accurately with little distortion removal.

It is another object of the present invention to provide a suspension type transfer facility which can be connected to a rail with high accuracy.

[0009]

In order to achieve the above-mentioned object, according to the present invention, a rail-to-rail connection structure for a transport facility according to the first aspect of the present invention connects rails via a yoke material. A rail-to-rail connection structure for a transport facility, wherein the yoke member is formed in a flat plate shape having a hole for a connector, and the yoke member is provided at a position inside the rail where the welding allowance is provided. A connecting tool that is fixed to the rail end by welding using a pair of rails whose rail end surfaces are opposed to each other and that is inserted between the connecting tool holes with an intermediate member filling a welding margin interposed between the yoke members of the pair of rails. Are connected via a.

Therefore, according to the first aspect of the present invention, the yoke member for connecting the ends of the plurality of rails has the same shape as the yoke member for connecting the intermediate portions in a flat plate shape and is provided at a predetermined position. It can be formed with holes. Before the rail connection, the rails can be connected via a plurality of yoke members. That is, rails can be connected by welding a predetermined portion of the yoke material at the intermediate portion or the end to a predetermined surface of each rail. At this time, the yoke material at the end is fixed by welding at a position inside the rail end surface of each rail with a welding margin.

When another split rail device is connected to the thus formed split rail device by rail, that is, in a state where the rail end surfaces of the respective rails are opposed to each other (correspondingly contact) in the rail length direction, the end portions of the split rail device are connected to each other. When connecting the yoke members with the connecting member, an intermediate member is interposed at a predetermined position on the outer surface between the yoke members at the end portions, and the connecting members are connected via the connecting member inserted between the connecting member holes. At this time, outside the end of the yoke material at the end,
By interposing the intermediate member that fills the welding allowance, the connecting force of the connecting tool acts on the intermediate member, that is, it does not act between the rail end faces or between the end yoke materials where distortion easily occurs. Therefore, the rail connection via the end yoke material and the connecting member can be easily, quickly, and accurately performed.

According to a second aspect of the present invention, there is provided the rail-to-rail connection structure for a transport facility according to the first aspect, wherein the intermediate member for filling a welding margin is a washer welded to a yoke material. It is characterized by.

Therefore, according to the second aspect of the present invention, the connecting force of the connecting tool acts locally on the yoke material via the washer welded to a predetermined portion of the yoke material. According to a third aspect of the present invention, there is provided the rail-to-rail connection structure for a transport facility according to the first aspect, wherein the intermediate member for filling the welding allowance is disposed between the yoke members to fill the welding allowance on both sides. It is characterized by being.

Therefore, according to the third aspect of the present invention, the spacer can be interposed between the end yoke members in a free state when the connection is performed by the connection tool. Then, the connecting force of the connecting tool acts on a local portion of the yoke material at the end portion through a single spacer at a connecting portion with a thickness that fills both welding margins.

According to a fourth aspect of the present invention, there is provided the inter-rail connecting structure for transport equipment according to the first aspect of the present invention, wherein the yoke member is provided with a plurality of connecting member holes, and a plurality of intermediate members. Is a thickness to fill the welding allowance on both sides, and is characterized by being distributed and welded to both yoke materials.

Therefore, according to the fourth aspect of the present invention, when connecting with the connecting member, the intermediate member can be interposed between the end yoke members while being welded to one of the end yoke members. Then, the connecting force of the connecting tool acts on a local portion of the yoke material at the end portion through a single spacer at a connecting portion with a thickness that fills both welding margins.

According to a fifth aspect of the present invention, there is provided a rail-to-rail connecting structure for transport equipment according to the first aspect of the present invention, wherein a plurality of connecting member holes are formed in the yoke member, and a plurality of intermediate members are provided. Is a thickness to fill the welding allowance on both sides, and is characterized by being welded to one yoke material.

According to the fifth aspect of the present invention, when the connecting member is connected, the intermediate member is gathered and welded to one of the yoke members at one of the ends, and is connected between the yoke members at the ends. May intervene. Then, the connecting force of the connecting tool acts on a local portion of the yoke material at the end portion through a single spacer at a connecting portion with a thickness that fills both welding margins.

According to a sixth aspect of the present invention, there is provided an inter-rail connecting structure for a transfer facility, wherein the rail is supported by a chain-type driving body that applies a moving force to the moving body. The first yoke member comprises a first rail to be guided and a second rail to support and guide the moving body, and the yoke member connects the rails.

Therefore, according to the invention of claim 6, the first
The rail and the second rail may be connected via a plurality of yoke members. Then, at the time of operation after completion of expected assembly and the like, the moving body can be moved on a fixed route by receiving the moving force of the driving body. At this time, the movable body can stably move on a fixed route by the support guide by the second rail. Further, the driving body can move smoothly by the support guide by the first rail.

According to a seventh aspect of the present invention, there is provided the inter-rail connecting structure for a transfer facility according to the sixth aspect, wherein the first rail is made of an I-shaped member disposed at an upper position, and The rail is characterized by comprising a pair of C-shaped members which are arranged at lower positions and whose open portions are opposed to each other.

Therefore, according to the seventh aspect of the invention, the yoke material at the intermediate portion and the end portion is formed by welding the lower edge of the central portion of the upper plate portion to the upper surface of the first rail, and the lower inner portion of the both side plate portions. By welding the rim to the outer surface of the second rail,
Connection between each rail can be performed.

According to a further aspect of the present invention, there is provided a rail-to-rail connection structure for a transport facility according to the above-mentioned configuration, wherein the second rail is disposed at a lower position and the open portions thereof are opposed to each other. The yoke material is made of the second C-shaped material.
It is characterized in that it has an inwardly protruding portion that is in contact with the upper surface of the rail.

According to the eighth aspect of the present invention, with the configuration in which the protruding portion is added, the contact direction between the yoke member at the intermediate portion and the end portion and the second rail becomes two directions, and the contact length,
That is, by increasing the length of the weld joint, the connection strength between the yoke material at the intermediate portion and the end portion and the second rail can be improved.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a first embodiment of the present invention will be described in a state where it is adopted in a hanging transport facility (an example of a transport facility) for transporting an article to be transported on a fixed route on a ceiling side. This will be described with reference to FIGS. The suspended transfer equipment 1 includes a rail device 10, a transfer device 30 supported and guided by the rail device 10, and the like.

The rail device 10 comprises a first rail 11 made of an I-shaped material and arranged at a higher position, and a pair of left and right second rails made of a C-shaped material and arranged at a lower position with their open portions opposed to each other.
The rail 15 includes a gate-shaped intermediate yoke member 20 and an end yoke member 21 provided at predetermined positions in the rail length direction to connect the rails 11 and 15 to each other.

Each of the yoke members 20, 21 is a gate-shaped flat plate, and a pair of left and right (single or plural) upper connecting hole 22 is formed in the center of the upper plate. A pair of upper and lower (single or plural) lower connector holes 23 is formed in each lower portion of the portion. The intermediate yoke material
Reference numeral 20 denotes a lower edge of the central portion of the upper plate portion which is welded to both surfaces 12a of the upper surface 11a of the first rail 11, and a lower inner edge of both plate portions which is welded to the outer surface 15a of the second rail 15 by both surfaces.
The connection between the rails 11 and 15 is performed by the connection.

The end yoke member 21 is also welded to the first rail 11 and the second rail 15 in the same manner as the intermediate yoke member 20 described above. At this time, the end yoke material 21
At the inner position where the welding allowance A is placed on the rail end faces 11b and 15b of the rails 1 and 15, double-sided welding 13A,
It is fixed to the rail end by 13B, 17A, 17B (or single-sided welding 13A, 17A). Further, a cylindrical washer (an example of an intermediate member) 24 having a thickness sufficient to fill the above-mentioned welding allowance A is communicated with the connecting member holes 22 and 23 on the surface of the end yoke member 21 on the outer side of the end. In the state, welding (tack welding or main welding) 25
It is fixed by.

With the rail end surfaces 11b and 15b of the rails 11 and 15 facing each other (corresponding to each other) in the rail length direction, the gaps between the end yoke members 21 are formed as connecting hole holes 22, 22, 23 and 23. They are connected via a connecting tool 26 inserted therebetween. That is, the connecting tool 26 is composed of, for example, a bolt 27, a nut 28, a washer 29, and the like.
24, 24, and after passing through the holes 22 and 23 for the connector, the nut 28
Are connected by screwing and tightening.

The rail device 10 is constituted by 11 to 29 described above. For example, the intermediate yoke member 20 is connected to the bracket 5 from the side of the ceiling structure (not shown) via a connector 6 such as a bolt and nut inserted into the upper connector hole 22.

The rail device 10 constructed as described above
In, the second rail 15 provides support and guidance for the moving body,
The first rail 11 supports and guides a driving body using a chain that applies a moving force to the moving body.

That is, a trolley device 31 which is an example of a moving body
Is a front trolley 32, a free trolley 33, a rear trolley 34, a connecting rod 35 connecting the front trolley 32 and the free trolley 33, a free trolley 33 and a rear trolley.
It is composed of a connecting frame 37 for connecting between trunnion pins 36 continuously provided from 34. And each trolley 32, 3
A guide wheel 38 fitted and supported on the second rail 15 and a run-out prevention wheel 39 guided between the end faces of the lower plate portions of the second rails 15 are provided at 3 and 34. Are respectively provided.

The front trolley 32 has a passive body 40 which can be disengaged from a transmission (described later) from the driving body.
Is provided so as to be able to move up and down, and an operation lever 42 attached to the middle so as to be able to swing up and down via a horizontal shaft 41 is extended forward, and a rear end of the operation lever 42 and a lower end of the passive body 40 are Are connected via pins. Therefore, the operating lever 42 and the passive body 40 are linked so that the passive body 40 descends when the front end of the operating lever 42 moves upward.

At the upper end of the front trolley 32, the passive body
In the position behind 40, when the transmission and the passive body 40 are engaged,
A runaway preventing body (hold dog) 43 for preventing the passive body 40 from running away forward is provided. The runaway preventing body 43 is configured to be swingable back and forth via a pin, and normally, its upper end is urged by a weight portion so as to protrude into the moving path of the transmission. The other rear trolley 33 has a cam tail 44 extending rearward to move the operation lever 42 upward.

The trolley device 31 is provided with a support device 45 for the transferred object. That is, the supporting device 45 includes a C neck 46 attached to the lower ends of the trunnion pins 36,
An arm 47 attached to the lower portion of the C-neck 46 and extending downward, and a support portion 48 provided horizontally at the lower end of the arm 47
Etc. B indicates a transferred object.

A driving body 50 using a chain, which is supported and guided by the first rail 11 and applies a moving force to the trolley device 31.
Is a link chain 51 arranged along the upper rail 11.
A trolley portion 52 provided at a predetermined position in the chain length direction of the link chain 51;
Is disposed near the link chain 51, and the passive body 40 is constituted by a disengageable transmission body 56 and the like.

The trolley part 52 is connected to the link chain 51
A pair of left and right trolley bodies 53 provided at the center link of the trolley, and one end (upper part) of these trolley bodies 53
The upper rail 11 is supported and guided on the upper surface of the lower plate of the upper rail 11 by rollers 55 freely rotatably provided through the roller 54 and the like. The link chain
Reference numeral 51 is linked to a drive unit (not shown by a motor or the like).

The operation of the first embodiment will be described below. The intermediate yoke member 20 and the end yoke member 21 for connecting the first rail 11 and the second rail 15 are
It has the same shape as a gate-shaped flat plate, and further has connecting hole 22 and 23 at predetermined locations.

Before assembling the rail device 10, the first rail 11 and the second rail 15 are connected via the intermediate yoke member 20 and the end yoke member 21. That is, each intermediate yoke member 20 has a lower edge of a central portion of the upper plate portion welded to the upper surface 11a of the first rail 11 on both sides 12 and a lower inner edge of both side plate portions has an outer surface of the second rail 15. The connection between the rails 11 and 15 is performed by welding 16 on both sides to 15a.

The end yoke member 21 is located inside the rail end surfaces 11b and 15b of the rails 11 and 15 with the welding allowance A, and the lower edge of the central portion of the upper plate portion is the first rail.
A double-sided welding 13 using this welding allowance A is
A, 13B is fixed to the rail end, and the lower inner edge of both side plate portions is fixed to the outer surface 15a of the second rail 15 by double-sided welding 17A, 17B using the welding allowance A to the rail end, The connection between each rail 11,15 is performed.

One of the split rail devices thus formed is connected to the bracket 5 from the ceiling structure side through the connecting member 6 inserted into the upper connecting hole 22 of the intermediate yoke member 20. To be installed on the ceiling side. Another split rail device is rail-connected and installed on the split rail device thus installed. Immediately before the rail connection, or the double-sided welding 13 between the rails 11 and 15 described above.
At the time of connection by A, 13B, 17A, 17B, etc., a washer 24 is fixed to a predetermined position on the outer surface between the end yoke members 21 by welding (for example, tack welding).

In order to perform rail connection using the end yoke member 21, the end yokes are provided in a state where the rail end faces 11b, 15b of the rails 11, 15 are opposed to each other (correspondingly contact) in the rail length direction. The members 21 are connected via a connecting member 26 inserted between the connecting member holes 22, 22, 23, 23. This means that the bolt 27 is connected to the connection holes 22, 23, the washers 24, 24, and the connection hole 2
After passing through 2 and 23, a washer 29 is fitted over the protruding end, and a nut 28 is screwed and tightened.

At this time, a surface of the end yoke member 21 outside the end is formed into a cylindrical washer 24 having a thickness enough to fill the above-mentioned welding allowance A.
Is fixed, the tightening force of the connecting member 26 is applied between the correspondingly contacted washers 24, that is, the contacted rail end faces 11b, 11b, of the rails 11, 15, respectively.
11b, 15b, 15b, and the end yoke material 21 where distortion easily occurs.
Therefore, the rail connection via the end yoke member 21 and the connecting member 26 can be easily, quickly and accurately performed.

Expected assembly and transport device of rail device 10
At the time of operation after installation of 30 etc., the trolley device
The movement of 31 is performed on a fixed path by engaging the power transmitting body 56 with the passive body 40 and receiving the moving force of the driving body 50.
At this time, the operation lever 42 has its front end moved downward. When the trolley device 31 attempts to run away during such movement, the runaway preventing body 43 comes into contact with the rear surface of the transmission 56, so that runaway is prevented.

During the operation as described above, the trolley device 31 is supported and guided by the guide wheel 38 fitted on the second rail 15, and the sway prevention wheel 39 is connected to the lower plate portion of the second rail 15. Is guided between the end surfaces of the first and second surfaces, and can be stably moved on a fixed route without a large swing. The roller 55 of the driving body 50 is smoothly moved by being supported and guided by the first rail 11.

Next, a second embodiment of the present invention will be described with reference to FIGS. That is, an intermediate member for filling the welding allowance A is disposed between the end yoke members 21 and 21 and has a thickness (A + A) that fills the welding allowance A on both sides and has a cylindrical spacer 60.
It is composed of

According to the second embodiment, the connecting member 26
The spacer 60 is disposed between the end yoke members 21 and 21 in a free state, and the bolt 27 is
The holes 22 and 23 for the connection tool, the spacer 60, and the holes 22 and 23 for the connection tool are inserted. When the nut 28 is screwed into the protruding end of the bolt 27 and tightened, one spacer 60 having a thickness (A + A) that fills both welding allowances A is provided on the surface of the end yoke member 21 outside the end. Due to the arrangement, the tightening force of the connecting member 26 is applied to a local portion of the end yoke member 21 via the spacer 60.

Next, a third embodiment of the present invention will be described with reference to FIGS. That is, the end yoke material
A plurality of connector holes 22, 22, 23, and 23 are formed in the holes 21 and 21, and the plurality of intermediate members have a thickness (A
+ A), and are distributed (welded or permanently welded) to the opposed end yoke members 21, 21. Here, the spacers 60 are distributed with the pair in the pair of connecting tool holes 22, 22, 23, 23 as a control.

According to the third embodiment, the connecting member 26
When the connection is performed, the spacer 60 is temporarily welded to one of the end yoke members 21 and the end yoke member 2
1, 21 and bolt 27 is
2, 23, the spacer 60, and the connector holes 22, 23 are inserted. When the nut 28 is screwed into the protruding end of the bolt 27 and tightened, one spacer 60 having a thickness (A + A) that fills both welding allowances A is provided on the surface of the end yoke member 21 outside the end. Since they are arranged, the tightening force of the connecting tool 26 is
It acts on the local portion of the end yoke member 21 via the spacer 60.

Next, a fourth embodiment of the present invention will be described with reference to FIGS. That is, the end yoke material
A plurality of connector holes 22, 22, 23, and 23 are formed in the holes 21 and 21, and the plurality of intermediate members have a thickness (A
+ A) and is welded (temporary welding or main welding) to only one of the end yoke members 21 facing each other.

According to the fourth embodiment, the connecting member 26
The spacer 60 is disposed between the end yoke members 21 and 21 in a state where the spacer 60 is assembled and temporarily welded to only one of the end yoke members 21 and the bolt 27 is connected The tool holes 22 and 23, the spacer 60, and the connector holes 22 and 23 are inserted. When the nut 28 is screwed into the protruding end of the bolt 27 and tightened, one spacer 60 having a thickness (A + A) that fills both welding allowances A is provided on the surface of the end yoke member 21 outside the end. Due to the arrangement, the tightening force of the connecting member 26 is applied to a local portion of the end yoke member 21 via the spacer 60.

Next, a fifth embodiment of the present invention will be described with reference to FIG.
It will be described based on. That is, the end yoke members 21, 21 are formed with a plurality of connecting tool holes 22, 22, 23, 23, and the plurality of intermediate members have a thickness (A +
A) It is composed of the plate-shaped spacer 61 of FIG.
After being arranged corresponding to the connection tool holes 22, 22, 23, 23 on one side with respect to the center line of, welding (temporary welding or main welding) is performed. Note that the plate-like spacer 61 has a hole for a coupling tool.
Communication holes 62, 62, 63, 63 are formed corresponding to 22, 22, 23, 23, respectively.

According to the fifth embodiment, the connecting member 26
When the connection is made, the plate-shaped spacer 61 is arranged between the end yoke members 21 and 21 in a state where the plate spacer 61 is distributed to the center line of the end yoke members 21 and 21 and temporarily welded. ,
Connection can be made regardless of the front and rear of the rail. At the time of connection, the bolt 27 is inserted into the connection tool holes 22 and 23, the communication holes 62, 62, 63 and 63 of the plate-like spacer 61, and the connection tool holes 22 and 23. When a nut 28 is screwed into the projecting end of the bolt 27 and tightened, a single plate-like spacer (A + A) having a thickness (A + A) for filling both welding allowances A is provided on the outer surface of the end yoke member 21. 61
Is arranged, the tightening force of the connecting member 26 is applied to the local portion of the end yoke member 21 via the plate-shaped spacer 61.

Next, a sixth embodiment will be described with reference to FIGS. That is, inwardly projecting portions 21a, 21a are integrally provided from the lower portions of the end yoke members 21, 21, and these projecting portions 21a, 21a are connected to the upper surface 15c of the second rail 15.
To the second rail 15 by welding 17A, 17B.
It is connected to. The middle end yoke member 20 has the same shape and is connected to the second rail 15 in the same manner.

According to the sixth embodiment, the protrusion 21
a, 21a, the contact direction between the yoke members 20, 21, 21 at the middle and end portions and the second rail 15 can be adjusted in the left-right direction with respect to the outer surface 15a of the second rail 15, and the second rail 15 The upper and lower sides of the yoke members 20 and 2 at the intermediate and end portions are extended in two directions, that is, the vertical direction with respect to the upper surface 15c of the upper and lower surfaces 15c.
The connection strength between the first rail 21 and the second rail 15 can be improved.

In the above-described embodiment, the suspended transport equipment 1 is shown as the transport equipment, but this may be a floor-type transport equipment that moves a cart. In the above-described embodiment, as the rail device 10, a combination of the first rail 11 made of an I-shaped member and the second rail 15 made of a C-shaped member is shown. Various combinations are possible, such as a shape made of a character-shaped material, the opening portions of which are opposed to each other and arranged in a pair on the left and right.

In the above embodiment, the connection holes 22 and 23
Although one washer 24 and spacer 60 are respectively associated with one of these, this is also a type in which a common washer and spacer are associated with a pair of left and right connection holes 22 and 23. Good.

In the above-described embodiment, the bolt / nut type is shown as the connecting member 26, but it may be a rivet type, a bolt / caulked nut type, or the like. In the above-described embodiment, the driving body 50 using a chain is used.
Is shown in a form supported by the upper rail 11, but this may be a form in which a moving force is applied to the trolley device 31 by a self-propelled body supported and guided by the upper rail 11.

In the above-described embodiment, the passive body 40 is engaged and disengaged with respect to the transmission body 56, but this may be a configuration in which the transmission body 56 is engaged and disengaged with respect to the passive body 40. .

[0060]

According to the first aspect of the present invention, the yoke member for connecting the ends of the plurality of rails has the same shape as the yoke member for connecting the intermediate portions and is flat without being bent. It can be formed in a shape and with a hole for a connector at a predetermined position, and the yoke material can be easily manufactured. Between the rails, a predetermined portion of the yoke material at the middle and end portions is welded to a predetermined surface of each rail, thereby reducing the number of welding directions and shortening the length of a welding line, thereby facilitating quick and easy operation. And firmly.

Further, in the rail connection, an intermediate member is interposed at a predetermined position on the outer surface between the yoke members when the yoke members at the ends are connected by the connector so that the connecting force of the connector acts on the intermediate member. In other words, the connecting force does not act between the rail end faces or between the end yoke materials that are likely to be distorted, so that the rail connection can be performed easily and quickly, and with little distortion removal. It can be performed with high accuracy.

According to the second aspect of the present invention,
The connecting force of the connecting tool can be locally applied to the yoke material via a washer welded to a predetermined portion of the yoke material.

According to the third aspect of the present invention, the spacer can be interposed between the yoke members at the ends in a free state, and the connecting force of the connecting tool is set to a thickness sufficient to fill both welding margins. At each point, it is possible to act on a local portion of the end yoke material via one spacer.

Further, according to the fourth aspect of the present invention, the intermediate member can be interposed between the end yoke members in a state where the intermediate member is welded to one of the end yoke members, and the connecting force of the connecting member is reduced. It can act on a local portion of the yoke material at the end portion through a single spacer at a connection point with a thickness that fills both welding margins.

Further, according to the fifth aspect of the present invention, the intermediate member can be interposed between the end yoke members in a state where the intermediate member is assembled and welded to one of the end yoke members, and Can act on a local portion of the yoke material at the end with a thickness sufficient to cover both welding allowances and a single spacer at each connection point.

According to claim 6 of the present invention,
The first rail and the second rail can be connected via a plurality of yoke members, and during operation, the moving body can stably move on a fixed path with the support guide by the second rail, and the driving body can , And can be smoothly moved by the support guide by the first rail.

According to the seventh aspect of the present invention, the lower edge of the center portion of the upper plate portion is welded to the upper surface of the first rail, and the yoke member of the intermediate portion or the end portion is welded to the upper surface of the first rail. By welding the inner edge of the rail to the outer surface of the second rail, the connection between the rails can be easily and quickly performed, and a hanging-type transfer facility connected to the rail with high accuracy can be provided.

Further, according to the eighth aspect of the present invention, the configuration in which the protruding portion is added enables the contact direction between the yoke member at the intermediate portion or the end portion and the second rail to be two directions and the contact length. That is, the welded joint length can be increased, and the connection strength between the yoke material at these intermediate portions and end portions and the second rail can be improved.

[Brief description of the drawings]

FIG. 1 shows an example of a first embodiment of the present invention, and is a perspective view before connection of main parts in a rail-to-rail connection structure for transport equipment.

FIG. 2 is a partially cut-away side view of a main part connection in the rail connection structure for the transport facility.

FIG. 3 is a longitudinal sectional front view at the time of connection in the rail connection structure for the transport equipment.

FIG. 4 is a side view of the transport equipment.

FIG. 5 shows an example of the second embodiment of the present invention, and is a perspective view before connection of main parts in a rail-to-rail connection structure for transport equipment.

FIG. 6 is a partially cut-away side view of a main part connection in the rail-to-rail connection structure for the transport facility.

FIG. 7 shows an example of the third embodiment of the present invention, and is a perspective view of a main part in a rail-to-rail connection structure for transport equipment before connection of main parts.

FIG. 8 is a partially cut-away side view of a main part connection in the rail connection structure for the transport equipment.

FIG. 9 shows an example of the fourth embodiment of the present invention, and is a perspective view of a main part of a rail-to-rail connection structure for transport equipment before connection of main parts.

FIG. 10 is a partially cut-away side view of a main portion of the rail-to-rail connection structure for the transfer facility when the main portion is connected.

FIG. 11 shows an example of the fifth embodiment of the present invention, and is a perspective view of a main part of a rail-to-rail connection structure for transport equipment before connection of main parts.

FIG. 12 shows an example of the sixth embodiment of the present invention, and is a perspective view before connection of main parts in a rail-to-rail connection structure for transport equipment.

FIG. 13 is a longitudinal sectional front view at the time of connection in the rail connection structure for the transport equipment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hanging conveyance equipment (conveyance equipment) 10 Rail device 11 1st rail 11a Upper surface 11b Rail end surface 13A welding 13B welding 15 Second rail 15a outer surface 15b Rail end surface 15c Upper surface 17A welding 17B welding 20 Intermediate yoke material 21 End yoke material 21a Projecting portion 22 Upper connector hole 23 Lower connector hole 24 Washer (intermediate member) 25 Welding 26 Connector 30 Transport device 31 Trolley device (moving body) 50 Drive unit using chain 51 Link chain 60 Spacer (Intermediate member) ) 61 Plate spacer (intermediate member) A Welding allowance B Workpiece

Claims (8)

[Claims] 1. A rail connection structure for transport equipment in which rails are connected via a yoke member, wherein the yoke member has a flat plate shape with a hole for a connector. At the inner position where the welding allowance is placed on the rail end face,
It is fixed to the rail end by welding using this welding allowance,
The yoke members of the pair of rails whose rail end faces are opposed to each other are connected via a connecting tool inserted between the connecting tool holes with an intermediate member filling a welding margin interposed therebetween. Rail connection structure for transfer equipment. 2. The rail-to-rail connection structure for transport equipment according to claim 1, wherein the intermediate member filling the welding margin is a washer welded to the yoke material. 3. The rail-to-rail connection structure for a transport facility according to claim 1, wherein the intermediate member that fills the welding margin is a spacer that is disposed between the yoke members and fills the welding margin on both sides. 4. A plurality of connecting member holes are formed in the yoke member, and the plurality of intermediate members are thick enough to fill a welding margin on both sides and are distributed and welded to both yoke members. The rail connection structure for a transport facility according to claim 1. 5. The yoke member is formed with a plurality of connecting member holes, the plurality of intermediate members are thick enough to fill a welding margin on both sides, and are welded to one of the yoke members. Item 4. A rail connection structure for a transport facility according to Item 1. 6. The rail comprises a first rail for supporting and guiding a driving body using a chain for applying a moving force to the moving body, and a second rail for supporting and guiding the moving body. The rail connection structure according to claim 1, wherein the rails are connected. 7. The first rail is formed of a pair of C-shaped members disposed at an upper position, and the second rail is formed of a pair of C-shaped members disposed at a lower position and having open portions opposed to each other. The rail-to-rail connection structure for a transport facility according to claim 6. 8. The second rail is composed of a pair of C-shaped members which are arranged below and whose open portions are opposed to each other, and the yoke member has an inwardly projecting portion which is in contact with the upper surface of the second rail. 7. The rail-to-rail connection structure for a transport facility according to claim 6, comprising: