JPS6226943B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a guide rail support device for a turning device for a guided track vehicle, and more particularly to a device for supporting a force acting on the guide rail in the longitudinal direction of the rail.

As shown in FIG. 1, the guided track vehicle to which this invention is applied is a vehicle that has guide wheels b protruding from both sides of the vehicle body A in addition to running wheels a, and the guide wheels b on both the left and right sides of the bottom plate 1 are provided on the track. It consists of walls 2 and 3. As shown in FIG. 1, there is a known track turning device that alternately raises and lowers a straight guide rail 4 and a branch guide rail 5 to turn a track (for example, Japanese Patent Application Laid-Open No. 156105/1983). (see official bulletin). When such guide rails 4 and 5 are raised and lowered by a crank mechanism, a horizontal force due to the rotational movement of the crank acts on the guide rail in the longitudinal direction, so it is necessary to support it. However, in the conventional elevating device as disclosed in the above-mentioned publication, since it is supported by a link mechanism for elevating and lowering, there is a drawback that sufficient supporting force cannot be obtained.

Therefore, an object of the present invention is to provide a device that reliably supports the above-mentioned force acting on the guide rail of a switching device. Hereinafter, the configuration of the present invention will be explained based on the accompanying drawings.

2 and 3 show a switching device equipped with a support device 5 according to the invention. First, the elevating device for the guide rails 3 and 4 will be explained.

In the figure, 6 is a motor mounted on a base, and this motor 6 rotates a transmission shaft 8 parallel to the rail 3 in forward and reverse directions via a transmission mechanism 7 such as a worm reducer. Reference numerals 9 and 9 indicate rotating shafts arranged in parallel at appropriate intervals between the rails 3 and 4, and are orthogonal to the transmission shaft 8, and both shafts are interlocked by a reduction gear 10. A crank mechanism 11 is provided at both ends of each shaft 9.

As shown in FIG. 4, this mechanism 11 fixes cranks 12 to both ends of a shaft 9 in opposite directions, that is, with the phases different by 180 degrees. It is pivoted to the lower side of rails 3 and 4. FIG. 4 shows a case where the rail 3 is raised and the rail 4 is lowered. From this state, when the shaft 9 rotates half a turn in the direction of the arrow, one rail 4 goes up and the other rail 3 goes down. Further, since the crank 12 of the other shaft 9 is also oriented in the same direction and rotates in the same manner, the rails 3 and 4 move up and down and turn while remaining horizontal.

Next, the support device 5 according to the present invention will be explained. This device 5 is provided at one location on each guide rail 3, 4 as shown in FIG. 2, and its configuration is as shown in FIGS. 5 and 6.

That is, as shown in FIG. 6, a pair of support parts 17,
17', the upper boss part 18 of the upper link 15 is interposed between the supporting parts 17, 17', and both ends of the shaft 19, which is inserted into and integrated with the boss part 18, are inserted through the bearing 20. The rail 3,
4 is transmitted to the shaft 19 and the boss portion 18.

Similar supports 23 are provided at both ends of the lower link 16,
23' is provided, and the lower boss portion 24 of the upper link 15
A shaft 25, which is integral with the boss portion 24, is rotatably supported by both support portions 23 and 23', and a spacer 26 is interposed between the support portion 23 and the support portion 23 located on the opposite side. Abuts on the end.

Furthermore, the fixed frame 14 includes a pair of support parts 27,
27' is provided, and the lower boss portion 28 of the lower link 16 is provided.
is interposed between the support parts 27, 27, and a shaft 29 integral with the boss part 28 is rotatably supported in both the support parts 27, 27', and the support part 23,
23', a spacer 30 is interposed between the support portion 27' on the same side as the side on which the spacer 26 is interposed, and the shaft 2
It abuts against the end of 9.

Note that a spring 3 is attached to each support portion 17, 23, 27 in which the spacer 21, 26, 30 is not inserted.
1, 32, 33 are interposed, respectively, and the shafts 19, 2
5 and 29 are pressed against the respective support portions 17, 23, and 27 on the opposite side.

Now, if a horizontal component force in the direction of the arrow in the figure is applied to the rails 3 and 4, that force is transmitted from the support portion 17 to the shaft 19 and boss portion 18, and then to the upper link 15. The force transmitted to the upper link 15 is supported by the support part 23 through the boss part 24 and the shaft 25 at the connection part with the lower link 16, and is transmitted to the lower link 16. The force transmitted to the lower link 16 is supported by the support part 27 at the connection part with the fixed frame 14 in the same way as above, and ultimately the horizontal component force acting on the rails 3 and 4 is transferred to the fixed frame 14. Therefore, it is supported.

Therefore, if the gaps between each member in the above force transmission path are made as small as possible,
The movement of the rails 3, 4 in the horizontal direction is substantially eliminated, and movement only in the vertical direction is permitted in response to the lifting and lowering action of the rails 3, 4.

In addition, the above springs 31, 32, 33 are
Boss portions 18, 2 through each shaft 19, 25, 29
4, 28 are elastically pressed against the supporting parts 17, 23', 27' on the opposite side, there is no gap, and movement of the rails 3, 4 in the horizontal direction (lengthwise direction) is reliably prevented. By making the contact force elastic, each shaft 19, 25, 29 is made to rotate smoothly.

As described above, this invention combines a pair of upper and lower links in a hinge form and interposes them between the rail and a fixed frame with their pivots parallel to the rail, and therefore only allows the rail to move up and down. It can reliably support horizontal forces acting on the rail.

[Brief explanation of the drawing]

Figure 1 is a plan view of the switching section, Figure 2 is a plan view of the switching device, Figure 3 is its front view, Figure 4 is an enlarged side view of the crank mechanism, and Figure 5 is the guide rail support device. A sectional view of the portion, FIG. 6 is a right side view of FIG. 5. 3, 4...Rail, 10...Fixed frame, 1
5...Top link, 16...Bottom link, 17,
17'...Support part, 18...Boss part, 1...Shaft,
21... Spacer, 23, 23'... Support part, 2
4...Boss part, 25...Shaft, 26...Spacer,
27, 27'...Support part, 28...Boss part, 29
...Axis, 30...Spacer.

Claims (1)

[Claims] 1. In a guide rail support device of a turning device for a guided track vehicle in which the straight guide rail 3 and the branch guide rail 4 are raised and lowered alternately to make turns, the space between each of the rails 3, 4 and the fixed frame 14 below them. A pair of upper and lower links 15 and 16 are interposed between the rails 3 and 4, and a pair of support parts 17 and 17' are provided at intervals in the length direction of each rail 3 and 4, and a support part 1 is provided on the upper link 15.
A pair of support parts 23, 2 are provided on both sides of the upper part of the upper boss part 18 and the lower link 16, which are interposed between the upper boss part 18 and the lower link 16.
3', a lower boss part 24 interposed between the upper link 15 and its supporting parts 23, 23', a pair of supporting parts 27, 27' on the fixed frame 14, and a lower boss part 24 interposed between the lower link 16 and its supporting parts 27, 27'. lower boss part 2
8, and each of these boss portions 18, 2
Both ends of the shafts 19, 25, 29, which are inserted into the shafts 19, 25, 29 and are integral with these, are connected to the respective supporting parts 17, 1.
7', 23, 23', 27', 27', and are rotatably inserted into the supporting parts 17 of each rail 3, 4, the lower link 16, and the supporting part 23' of the fixed frame 14 on the opposite side. 27', spacer 2, respectively.
1, 26, 30, thereby transmitting horizontal force between each support portion 17, 23', 27', shaft 19, 25, 29 and boss portion 18, 24, 28. A guide rail support device for a switching device for guided track vehicles.