WO2008012890A1

WO2008012890A1 - Horizontal branch device for self-propelled carriage

Info

Publication number: WO2008012890A1
Application number: PCT/JP2006/314858
Authority: WO
Inventors: Yuji Suzuki; Kenichiro Tsurumori; Minoru Masujima
Original assignee: S & S Engineering Corp.
Priority date: 2006-07-27
Filing date: 2006-07-27
Publication date: 2008-01-31
Also published as: JP5009912B2; JPWO2008012890A1

Abstract

A horizontal branch device for a self-propelled carriage, used to transfer a loaded self-propelled carriage (50) between tracks placed crossed each other. The device allows the carriage to be transferred from travel tacks to branched tracks without stopping it, has a simple track branch structure so that less operation trouble occurs in the device even if a large allowance in accuracy and error is provided in the device, can be designed and installed easily with reduced labor, and always assures reliable branching operation. The tracks at least include first tracks (10a, 10b, 110a, 110b) and second tracks (20a, 20b) crossing the first tracks. At the crossing of the tracks, there are provided linear track sections (33, 133) for linearly connecting tracks present on the same line together and curved track sections (34, 134) for connecting crossing tracks together in a curve to thereby provide horizontally rotating rotation tables (31, 131). The tracks are connected with each other by rotationally positioning the tables.

Description

Specification

Self-propelled cart horizontal branching device

Technical field

[0001] The present invention relates to a horizontal branching device for a self-propelled carriage. Specifically, a self-propelled carriage consisting of a container and a carriage is run along a rail that is laid horizontally on the floor and ceiling and vertically on the wall across multiple floors of the building, etc., and placed along the rail. The loading system such as documents and parts is unloaded from the container, and the traveling direction of the self-propelled carriage on the horizontal rail is changed to match the destination and destination in the transport system mounted on the container. The present invention relates to a horizontal branch device.

Background art

Conventionally, this type of transport system controls a rail that is laid horizontally and vertically inside a building, a self-propelled cart that is a plurality of transport bodies that run on the rail, and the traveling of the self-propelled cart. Computers such as computers are also configured. A self-propelled bogie is formed by attaching a container to load a load on a bogie that runs along a rail.

[0003] Conventionally, a branching device for changing the destination of a self-propelled carriage is a shift in which a part of one rail R1 is divided so as to be shiftable in a direction crossing the traveling direction, as schematically shown in FIG. By forming the rail r 1 and shifting it to another rail R2 with the self-propelled carriage MC placed on this shift rail rl, and guiding the self-propelled carriage MC to the rail R3 connected to the destination. Has been made. That is, each of the rails R1 to R3 is divided by the same r2 as the shift rail rl in the shift section, and when the self-propelled carriage MC reaches the divided shift rail rl or r2, the running of the self-propelled carriage MC is stopped and stopped. . The shift rail rl or r2 is shifted to the rail R2 or R3 connected to the destination while the self-propelled cart MC is mounted.

[0004] With this branching device, the self-propelled carriage MC is stopped and stopped on the same r2 as the shift rail rl each time it shifts from one rail R1 or R2 to another rail R2 or R3. The shift rail rl or r2 along with the self-propelled carriage MC must be shifted to the next rail R2 or R3. For this reason, it is not always necessary for the branch operation to change the destination. Since it is stopped and the running rail is changed, the operation takes time. Therefore, if there are many branch points that change the rail, it will take more time to reach the destination. However, since the branching device is quite large, the installation of the branching device requires considerable cost and labor.

[0005] In addition to the branching device that shifts a part of the rail as described above, there is a branching device disclosed in Patent Document 1.

This branching device includes a substantially semicircular arc-shaped fixed curve plate disposed between two intersecting rails and a drive curve plate that is provided inside the fixed curve plate and rotates angularly. The fixed curve plate has a guide bent at a substantially right angle along its arcuate outer peripheral edge, and the drive curve plate is the same as the fixed curve plate on the outer peripheral edge exposed from the fixed curve plate. This is a configuration having a guide that is formed into an arc of curvature and bent at a right angle. (For example, see Patent Document 1).

[0006] In the above branching device, the self-propelled carriage is turned by rotating the drive curve plate at an angle so that the guide is aligned with the guide of the fixed curve plate. Then, the self-propelled carriage is caused to travel straight by positioning the drive curve plate so that the self-propelled cart is not guided by the guide of the drive curve plate.

However, this branching device has the advantage that the traveling direction of the self-propelled carriage is changed, so that it is not necessary to stop the carriage. Depending on accuracy, assembly error, or operation error, it may not be possible to secure 100% reliable branching for the self-propelled carriage.

Patent Document 1: Shokai Aki 62-194622

Disclosure of the invention

Problems to be solved by the invention

[0007] In view of the present situation of the horizontal branching device for a self-propelled carriage as described above, the present invention transfers a carriage that has traveled without stopping for branching to a running rail force branching rail as it is. In addition, since the branch structure of the rail is extremely simple, operation troubles are unlikely to occur even if the tolerances of accuracy and error are large, so that the branching device can be designed and installed even if the number of rails is large. Easy and less effort, and always reliable branching The problem is to provide a horizontal branching device for a self-propelled carriage that can be operated.

Means for solving the problem

[0008] The structure of the branching device of the present invention made for the purpose of solving the above-mentioned problems is a branching device for transferring a rail laid in a crossing manner to a self-propelled carriage on which a load is mounted. Includes at least a first rail and a second rail that intersects the first rail, and intersects a straight rail portion that linearly connects the rails on the same line at the intersection of the rails. A rotating table that has a curved rail portion that connects each other in a curved shape and that rotates horizontally is provided, and the table is rotated and positioned to connect the rails together.

[0009] In the branching device of the present invention, the first rail is composed of at least two pairs of rails arranged in parallel with each other, and the second rail by the one set of rails is arranged so as to intersect the first rail and rotate. The table may be arranged at each of the intersecting portions where the first rail and the second rail intersect.

[0010] In the branching device of the present invention, in the above-described configuration, the rotary table is provided with two curved rail portions and one straight rail portion that are connected to each rail that is in contact with the table when the rotary table is positioned. As a configuration that has been set up.

[0011] Furthermore, in the branching device of the present invention having the above-described configuration, the first rail intersects with the second rail at a right angle, and the linear rail portion is disposed so as to pass through the rotation center of the rotary table. The two curved rail sections are symmetrically arranged across the straight rail section, and the incoming and outgoing ends of both curved rail sections are 45 degrees with respect to the incoming and outgoing ends of the linear rail section. It shall be arranged on the rotary table at a separated position.

[0012] In each of the above-described configurations, the rotary table is horizontally turned by an appropriate drive mechanism including an electric motor. The drive source can be a drive force such as a motor cylinder, and the transmission mechanism can be a gear train, rack pion, or the like.

[0013] The self-propelled cart used in the branching device of the present invention includes a cart body provided with a container for storing a load, and a guide wheel that is rotatably attached to the cart body in a horizontal plane and is restrained by a rail and rolls. And is provided on the main body of the carriage, rolls on the rail, and moves the main body of the truck along the rail. What is necessary is just to be provided with the horizontal drive wheel to drive | work.

The invention's effect

[0014] A branching device for a self-propelled carriage according to the present invention is a branching device for switching between crossed rails to a self-propelled cart carrying a load, the first rail and the first rail A curved rail portion that connects at least a second rail that intersects the rail, and that connects the straight rail portion that connects the rails on the same line in a straight line and a curved rail portion that connects the rails that intersect each other in a curved shape. Since there is a rotating table that turns and turns horizontally, the rotating table is turned before the self-propelled cart reaches the branching device, and the rail that the self-propelled cart is traveling and the rail that faces the destination. And the self-propelled carriage does not need to stop once before the junction.

[0015] For example, when the self-propelled carriage is caused to travel straight, the rotary table is swiveled and positioned so that the first rail divided by the rotary table is connected by the straight rail portion. In addition, when the second rail is used as a rail toward the destination, the rotary table may be rotated and positioned so that the first rail and the second rail divided by the rotary table are connected by the curved rail portion. . As a result, the self-propelled carriage can be guided to the rail toward the destination without waiting time for changing the destination.

[0016] Moreover, since the rail that the self-propelled carriage is currently traveling and the rail toward the destination that is going to travel with this force can be reliably established simply by turning the rotary table, An efficient and highly reliable branch device can be configured.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the branching device of the present invention will be described with reference to the drawings. In the accompanying drawings, FIG. 1 is a plan view of an example of the branching device of the present invention, FIG. 2 is an enlarged plan view of a turntable in the horizontal branching device shown in FIG. 1, FIG. 3 is a right side view of the horizontal branching device shown in FIG. Fig. 4 is a side view of an example of a self-propelled cart that travels (passes) through the horizontal branching device shown in Fig. 1, Fig. 5 is a bottom view of the self-propelled cart shown in Fig. 4, and Fig. 6 is a diagram of the self-propelled cart shown in Fig. 4. FIGS. 7 (A) to (D) are plan views schematically showing the operating state of the branching device of the present invention, and FIGS. 8 (A) to (D) are other operations of the branching device of the present invention. 9A to 9D are schematic plan views showing other operating states of the branching device of the present invention, and FIG. 10 is a vertical running state of the self-propelled carriage shown in FIG. FIG. 11 is a perspective view schematically showing an outline of a conventional horizontal branching apparatus.

[0018] As illustrated in FIG. 1, the branching device of the present invention intersects two sets of rails 10a, 10b and 110a, 110b arranged in parallel along the vertical direction of this figure at right angles to each other. It is arranged at the intersection of a pair of rails 20a, 20b. Rails 10a, 10b, 110a, 110b, 20a, 20b are laid on plate-shaped rail bases 11a, l ib, 11 lb, 111b, 21a, 21b, respectively.

In the branching device of the present invention, one of the turntables 30 constituting the main body is at the intersection of the rails 10a, 10b and the rails 20a, 20b, and the other rotary table 130 is the rails 110a, 110b and the rails 20a. , 20b at the intersection. The configuration of both turntables 30, 130 is the same.

[0020] Each turntable 30, 130 includes a rotatable table 31, 131 at the center thereof, and a turntable base 32, 132 that supports the table 31, 131 so as to be rotatable. On the upper surface of the table 31, there are a straight rail portion 33 connected to the rails 10a and 10b, and two curved rail portions 34 and 35 which are symmetrical with respect to the straight portion 33. In the same manner as the table 31, a straight rail portion 133 and two curved rail portions 134 and 135 are provided.

[0021] One linear rail portion 33 of the table 31 is arranged on a straight line (diameter of the table 31) passing through the turning center of the table 31. The two curved rail sections 34 and 35 have two curved rail lines formed so as to have an arc-shaped curvature symmetrical with respect to the straight rail section 33. It is arranged so that it is located 45 degrees apart on the outer circumference. The straight rail portion 133 of the table 131 and the two curved rails 134 and 135 are also arranged in the same manner as in the case of the table 31.

FIG. 3 and FIG. 4 are diagrams for explaining the turntables 30 and 130, and show the plane and front of the turntable 30. Since the turntable 130 has the same configuration as the turntable 30, description thereof is omitted. The table 31 has a shaft member 36 at the center thereof held by a bearing member 37 provided on the turntable base 32, and is horizontally swung on the turntable base 32 by a drive mechanism including an electric motor 38. The electric motor 38 is fixed to the turntable base 32 with the rotating shaft facing downward. A gear 39 is provided on the rotating shaft of the motor 38, and the shaft member 36 of the table 31 is engaged with the gear 39. A gear 40 is attached. When the electric motor 38 is operated, the gears 39 and 40 are rotated, the table 31 is pivotally positioned around the shaft member 36, and one of the rail portions 34, 35, and 36 is arranged with respect to the turntable 30. Connected with one of the following.

41a to 41c are sensors for rotational positioning of the table 31, 41a is an angle detection sensor that detects the horizontal and vertical orientation of the straight rail portion 33, 41b is a 45 ° right inclination detection of the straight rail portion 33, and 41c is Similarly, it is an angle detection sensor that detects the 45 ° left inclination of the straight rail 33. The leg members 42 at the four corners of the lower surface of the turntable base 32 are for supporting the turntable 30 on the floor such that the height of the turntable 30 matches the height of each of the rails arranged around the turntable 30.

Next, a self-propelled carriage 50 that runs the branching device of the present invention will be described with reference to FIGS. The self-propelled cart 50 includes a cart body 51. The cart body 51 has a pair of guide wheels 52, 52 arranged on the left and right at both front and rear sides in the traveling direction. The front and rear guide wheels 52, 52 are provided with a vertical rotation shaft, so that the rails 10a, 10b, 110a, 110b, 20a, 20b, straight rail 133 and curved rail 35 Even if there is a deviation of! /, 134, 135, it rolls while holding the rail. For this reason, the pair of guide wheels 52 are attached to the support base 53 by a vertical rotation shaft. The support base 53 is attached to the carriage main body 51 so as to be rotatable by a vertical shaft 53a (can be swung in a horizontal plane).

[0024] The dolly body 51 [railway, rail base 11a, lid, 111b, 111b, 21a, 21b] is mounted with rolling horizontal drive wheels 54. The horizontal drive wheel 54 has a support shaft (not shown in the figure) held by the carriage main body 51 and is connected to a rotation shaft of an electric motor 56 through a gear train to a spur gear 55 and rotates by the operation of the electric motor 56. It acts as a drive wheel that allows the self-propelled carriage 50 to travel along the rail base 1 la, l ib and the like. Further, auxiliary traveling wheels 57 are rotatably attached to the support base 53 so as to be orthogonal to the guide wheels 52. The auxiliary traveling wheels 5 7 support the longitudinal load of the self-propelled carriage 50 and, together with the horizontal drive wheels 54, the rail bases 11a, l ib, 111b, 111b, 21a, 21b, side load, and rotary table 30. Roll over.

A container 60 is installed on the upper surface of the cart body 51 as shown in FIGS. The container 60 accommodates various loads such as cases containing specimens and reagents. A handle 61 and the like are provided on the outer surface of the container 60. [0026] Here, the self-propelled carriage 50, for example, when a force such as a terminal device connected to an external computer or the like instructs the transfer destination station (destination), the electric motor 56 operates to rotate the horizontal driving wheel 54. The carriage 50 is run on a rail base such as a rail base 1 la. At this time, the front and rear guide wheels 52 of the bogie main body 51 rotate with a rail such as the rail 10a interposed therebetween to support the bogie 50. When the self-propelled carriage 50 having the designated destination approaches the turntable 30 or 130 which is the branching device of the present invention, the rail to reach the destination is selected by turning the turntable 30 or 130. By this turning positioning, the rail on which the self-propelled carriage 50 is currently traveling and the rail that reaches the destination are connected via any of the rail sections 33 to 35 of the table 31, and then travels to the destination transport station and stops. To do.

[0027] The power supply to the electric motor 56 of the self-propelled carriage 50 is performed, for example, by an overhead line disposed along the rails 10a, 10b, 110a, 110b, 20a, 20b. In addition, the traveling control is performed by, for example, connecting a controller (not shown in the figure) in the self-propelled carriage 50 and an externally arranged computer device by communication through a communication line that runs parallel to the overhead line. Selection of rails at the branching device and turning positioning of the rotary tables 30, 130 are performed.

[0028] Next, an operation mode of the branching device of the present invention will be described.

Fig. 1 shows that the table 31 is pivoted so as to connect the straight rail portion 33 and the rails 10a and 10b, and the table 131 connects the curved rail portion 135 to the rail 110a and the rail 20b. The state where the swivel positioning is performed is shown. At this time, the front and rear guide wheels 52 of the self-propelled carriage 50 rotate with the rails 10a, 10b, 110a, 110b, 20a, 20b sandwiched from the side.

At the same time, the motor 56 of the left self-propelled carriage 50 in FIG. 1 rolls the self-propelled carriage 50 on the rail base 1 la, the table 31, and the rail base l ib on the horizontal drive wheels 54. Through the straight rail section 33 of the turntable 30 to the rail 10b to make a straight line. Similarly, the self-propelled carriage 50 traveling on the rail 110a also travels 90 degrees to the right through the curved rail portion 135 of the turntable 130 toward the rail 20b.

[0029] FIGS. 7 (A) to (D) to FIGS. 9 (A) to (D) exemplify branch patterns in the branch device of the present invention, and will be described in the following order.

Figure 7 shows that the straight rail 133 of the table 131 is tilted 45 degrees to the right and fixed. This shows the rail pattern to be connected when turning rightward at 45 ° pitch (clockwise direction, hereinafter the same). Fig. 7 (A) shows the same state as Fig. 1. If the turning angle of the table 31 in Fig. 7 (A) is 0 degree, Fig. 7 (B) shows the state in which the table 31 has turned 45 degrees clockwise, and the rail 10a has the curved rail portion 34 and the table 131. The rail 110a is connected to the rail 110b via the curved rail portion 125, the rail 20a is connected to the rail 10b via the curved rail portion 35, and the rail 110a is connected to the rail 20b via the curved rail portion 134.

When the table 31 turns 90 degrees clockwise, as shown in FIG. 7 (C), the rail 20a passes through the straight rail portion 33 and the curved rail portion 135 of the table 131 to the rail 110b, and the rail 110a turns into the curved rail portion 134. It is connected to the rail 20b via

Then, when the table 31 turns 135 degrees clockwise, as shown in FIG. 7 (D), the rail 10a goes to the rail 20a through the curved rail portion 34, and the rail 10b goes to the curved rail 35 and the curved rail of the table 131. The rail 110b is connected to the rail 110b via the portion 135, and the rail 110a is connected to the rail 20b via the curved rail portion 134.

[0030] FIGS. 8A to 8D show a table 131 in the state of FIG. 7 (in FIG. 7, at a clockwise 45 ° position), and further rotated clockwise by 45 degrees, the table 31 in FIG. As in the case, it shows the state of turning at 45 degree pitch. When the turning angle of the table 31 is 0 degree, the rail 10a and the rail 10b are only connected by the straight rail portion 33 as shown in FIG. 8 (A).

When the table 31 turns 45 degrees clockwise, as shown in FIG. 8 (B), the rail 10a and the rail 20b are connected via the curved rail portion 34 and the straight rail portion 133 of the table 131, and the rail 20a The rail 10b is connected via the curved rail portion 35.

When the table 31 is turned clockwise by 90 degrees, the rail 20a is connected via the straight rail portion 33 and the straight rail portion 133 of the table 131 as shown in FIG.

When the table 31 turns clockwise 135 degrees, the rail 10a and the rail 20b are connected via the curved rail portion 34, and the rail 10b and the rail 20b are connected to the curved rail portion 35 and the straight rail portion 133 of the table 131. Connected through.

FIG. 9 shows a state in which the position force of the table 131 in the state of FIG. 7 is also turned 90 degrees to the right, and the table 31 is sequentially turned at a 45 degree pitch as in the case of FIG. When the turning angle of table 31 is 0 degree, as shown in Fig. 9 (A), rail 10a and rail 10b Are connected by the straight rail portion 33, and the rail 20 b and the rail 110 b are connected by the curved rail portion 1 35.

When the table 31 turns 45 degrees to the right, the rail 10a and the rail 1 10a are connected by the curved rail portion 34 and the curved rail portion 134 of the table 131 as shown in Fig. 9 (B), and the rail 2 Oa and the rail 10b is connected by the curved rail portion 35, and the rail 20b and the rail 110b are connected by the curved rail portion 135.

When table 31 turns 90 degrees to the right, as shown in Fig. 9 (C), rail 20a and rail 110a are connected by straight rail portion 33 and curved rail portion 134, and rail 20b and rail 110b are curved. Connected by rail 135.

When the table 31 further turns to the 135 ° clockwise rotation position, as shown in Fig. 9 (D), the rail 10a and the rail 20a are connected by the curved rail portion 34, and the rail 10b and the rail 11 Oa are curved. The rail 35 and the curved rail 134 are connected, and the rail 20b and the rail 110b are connected by the curved rail 135.

[0032] The branch connection to each of the above connection modes between the rails is performed before the self-propelled carriage 50 reaches the rotating base 30 or 130, for example, the controller force of the self-propelled carriage 50 also contacts the external computer. And the destination data are supplied, and based on this, the computer controls the operation of the motor 38 (138).

[0033] As described above, the branching device according to the present invention swivels and positions the rotary table so that the self-propelled carriage can freely select and travel between a plurality of rows of rails. By doing so, it is possible to run while changing the route without stopping the self-propelled carriage. Therefore, according to the present invention, it is possible to arrive at the destination station in a shorter time than this type of conventional device, and there is less power loss because there is no temporary stop or restart at the branch device. .

[0034] Furthermore, since the route change is simply turning the rotary table, the mechanism of the branching device can be simplified, which makes it possible to reduce the number of branching devices with high reliability! / ヽ Maintenance and easy maintenance. It can be reliably operated over a long period of time.

[0035] Since the turntable including the table can be standardized because of its simple configuration, the design and installation of the branching device is easy and requires little effort even if the number of rails increases. Can be done.

[0036] The self-propelled carriage 50 that travels horizontally branched by the branching device of the present invention may travel on a vertical rail. Accordingly, the illustrated self-propelled carriage 50 includes a pinion gear 71 for vertical rail traveling and traveling wheels 72 to 75 for keeping the carriage horizontal at the time of vertical rail traveling. The point is described.

In the self-propelled carriage 50 shown in FIGS. 4 to 6 and FIG. 10, the pinion gears 71 are coaxially arranged on the left and right side surfaces of the carriage main body 51. The traveling wheels 72 and 73 are arranged on both side surfaces of the carriage main body 51 so as to sandwich the respective pinion gears 71 from the front and rear in the traveling direction. The traveling wheels 74 and 75 are arranged on both side surfaces of the carriage main body 51 so as to sandwich the pinion gears 71 from above and below.

[0038] The force pion gear 71 is forcibly driven so that the traveling wheels 72 to 75 are rotatably attached to the carriage main body 51. For this purpose, the pion gear 71 is fixed to both ends of the shaft 76 held by the carriage body 51. A gear 77 that meshes with the spur gear 55 is fixed to the shaft 76. When the electric motor 56 is activated, the pion gear 71 is rotated via the spur gears 55 and 77.

[0039] As shown in FIG. 10, for example, the self-propelled carriage 50 travels in a horizontal posture along a vertical rail 200 laid vertically on a wall of a building or the like.

[0040] In Fig. 10, the vertical rail 200 also has a rail member that has a substantially U-shaped cross-section with a lower portion curved at an angle of 90 ° and an open inner side. On the inner surface of the bottom wall 201 of the rail member, on the side close to the outer wall 202, a rack 203 that mates with the pion gear 71 of the self-propelled carriage 50 is laid, and on the side away from the outer wall 202, the traveling wheels 74, A support rail for supporting 75 is formed by a part of the bottom wall 201 and the front wall 209. A tunnel 204 through which the horizontal traveling wheel 72 of the self-propelled carriage 50 passes is formed in a region that is a curved surface in the bottom wall 201. The front wall 209 is formed in the opening 207 by cutting away a region between the guide 205 and the guide 206.

[0041] The vertical rail 200 is connected to ends (not shown) of all or a part of the rails 10a, 10b, 110a, 110b, 20a, 20b. For example, it is connected to the rail 10b.

[0042] When the self-propelled carriage 50 reaches the end of the rail 10b, the pion gear 71 is engaged with the rack 203 of the vertical rail 200 and rotates to become a moving drive wheel of the carriage 50. At this time traveling wheel 74 And 75, the outside force of the opening 207 and the external force of the tunnel 204 also enter the inside of the vertical rail 200. On the other hand, the traveling wheel 73 is guided to the outside of the vertical rail 200 through the guide 205 and the bottom wall 201, and the traveling wheel 72 is guided to the outside of the vertical rail 200 through the tunnel 204.

In addition, the traveling wheel 72 is guided by the guide 208, the traveling wheel 73 is guided by the guide 205, and the traveling wheel 74 is guided and rolled while being in contact with the guide 206. Run the vertical rail while maintaining it.

[0043] In the embodiment of the branching device of the present invention described above, the branching device is an example of being arranged at the intersection of two sets of vertical rails and one set of horizontal rails. The vertical rail and the horizontal rail can be crossed, and a turntable that is the main body of the branching device of the present invention can be arranged in the crossing section of each rail to allow the self-propelled carriage to change between multiple rails. The

[0044] Further, the crossing angle of the rails is a right angle, but it may cross at an obtuse angle or an acute angle. In this case, the straight rail part and the curved rail part on the table are set according to the crossing angle of the rails.

[0045] Further, the self-propelled carriage is provided with a pinion gear and an auxiliary running wheel used when traveling on the vertical rail. However, the self-propelled carriage may be a self-propelled carriage without these.

Industrial applicability

[0046] The present invention is as described above, and includes at least a first rail and a second rail crossing the first rail, and the rails on the same line are linearly formed at the intersection of the rails. Since a rotating table that has a curved rail section that connects the straight rail sections that intersect with each other in a curved line and that rotates horizontally is used as a horizontal branching device, it is just before the self-propelled carriage reaches the branching device. The turning table is turned to connect the rail that the self-propelled carriage is traveling to the rail that is facing the destination, so there is no need to temporarily stop the self-propelled carriage before the branch point. The effect that it can run is acquired.

Brief Description of Drawings

FIG. 1 is a plan view of a branching device for a self-propelled carriage of the present invention.

FIG. 2 is an enlarged plan view of a turntable in the horizontal branching device shown in FIG.

FIG. 3 is a right side view of the horizontal branch device shown in FIG. FIG. 4 is a front view of a self-propelled carriage in the horizontal branching device shown in FIG.

FIG. 5 is a bottom view of the self-propelled carriage shown in FIG.

FIG. 6 is a right side view of the self-propelled carriage shown in FIG.

FIG. 7 is an explanatory diagram showing an operating state.

FIG. 8 is an explanatory view showing another operating state.

9] An explanatory view showing still another operating state.

圆 10] An explanatory diagram showing the traveling state of the vertical rail of the self-propelled carriage shown in FIG.

FIG. 11 is a perspective view schematically showing an outline of a conventional horizontal branch device.

Explanation of symbols

10a, 10b, 110a, 110b, 20a, 20b rail

11a, l ib, 111a, 111b, 21a, 21b rail base

30, 130 turntable

31, 131 tables

32, 132 turntable base

33, 133 Straight rail

34, 134, 35, 135 Curved rail

36 Shaft member

37 Bearing members

38 Electric motor

50 Self-propelled cart

51 Bogie body

52 Guide wheel

53 Support base

54 Horizontal drive wheel

55 Flat—Inexpensive

56 Electric motor

57 Auxiliary guide wheel

60 containers 61 Handle

71 pinion gear

72 Horizontal running wheels

72-75 traveling wheel

76 axes

77 Trouble

Claims

The scope of the claims

[1] A branching device for transferring a rail laid in a crossing direction to a self-propelled carriage carrying a load, wherein the rail includes a first rail and a second rail crossing the first rail. A rotating table that has a curved rail section that connects a straight rail section that connects the rails on the same line in a straight line with a curved rail section that connects the rails that intersect with each other in a curved line at the intersection of the rails. A horizontal branching device for a self-propelled carriage characterized in that the table is swiveled and positioned to connect the rails together.

[2] There are at least two sets of rail forces in which the first rails are arranged in parallel to each other, a second rail by one set of rails is arranged to intersect the first rail, and the rotary table is the first rail. The horizontal branching device according to claim 1, wherein the horizontal branching device is disposed at each of the intersecting portions where the first rail and the second rail intersect.

[3] The rotary table is provided with two curved rail portions and one straight rail portion connected to each rail in contact with the table when the rotary table is turned and positioned. Horizontal branching device.

[4] The first rail intersects the second rail at a right angle, the straight rail portion is arranged so as to pass through the rotation center of the rotary table, and the two curved rail portions are straight lines. A symmetrical arrangement with the rail section sandwiched between the inlet end and the outlet end of both curved rail sections at 45 degrees apart from the inlet end and outlet end of the straight rail section. The horizontal branching device according to any one of Items 1 to 3.

[5] The horizontal branching device according to any one of claims 1 to 4, wherein the rotary table is horizontally swiveled by an appropriate drive mechanism including an electric motor.

[6] The self-propelled bogie is installed in the bogie main body with a container for storing the load, a guide wheel that is attached to the bogie main body so as to be rotatable in a horizontal plane and is restrained by a rail, and rolls. The horizontal branching device according to any one of claims 1 to 5, further comprising a horizontal drive wheel that rolls on the rail and causes the carriage body to travel along the rail.