JPH0423732Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention is a trolley-type transport system used in various industrial fields to transport various objects along predetermined transport routes. The present invention relates to an apparatus, and particularly to a trolley-type conveyance apparatus comprising a guide rail having a substantially U-shaped cross section and a conveyance carriage equipped with a trolley guided by the guide rail.

(Prior art and its problems) In the above-mentioned trolley-type transportation device, a driving trolley and a driven trolley are used for the transportation vehicle,
Both trolleys support or suspend the loading platform. Each trolley is equipped with a supporting horizontal shaft wheel that rolls on the lower rail of the guide rail, which is approximately U-shaped in cross section, and a horizontal tilting wheel that rolls on the upper rail at a position directly above and behind the wheel. A horizontal axis wheel for prevention and vertical axis rollers for anti-sway in left and right lateral directions that engage with the upper and lower rail sections are provided.

In a conventional conveying device of this type, vertical shaft rollers for preventing back-and-forth sway are arranged so as to sandwich the upper and lower rail portions from both left and right sides. Therefore, in order to keep the transport vehicle parallel to the guide rail in plan view, the vertical shaft rollers for steady rest that engage at least one of the upper rail section and the lower rail section are spaced at appropriate intervals in the front and rear. If an attempt was made to arrange the rollers at two separate locations, a total of six rollers would be required as vertical axis rollers, which would not only increase the number of parts but also increase the weight of the trolley, resulting in an increase in cost.

Furthermore, since the vertical axis rollers for steady rest are arranged so as to sandwich the upper and lower rail sections from both the left and right sides, the horizontal axis wheels for support and the horizontal axis wheels for preventing forward and backward falling are rolled on the guide rails. Rolling space for the vertical axis rollers for steady rests is required on both the left and right sides of both the upper and lower rail sections, which have rail surfaces that allow the guide rails to move, and the left and right widths of the guide rails become wider, which also has the disadvantage of increasing costs. .

(Means for Solving the Problems) The present invention proposes a trolley-type transport device that can solve the conventional problems as described above. , a trolley-type transportation device comprising a transportation vehicle equipped with a trolley guided by the guide rail, the guide rail having guide grooves formed inside upper and lower overhangs so as to face each other. , the trolley of the transport vehicle includes a supporting horizontal axis wheel that fits into the lower guide groove of the guide rail, and a pair of front and rear horizontal axis wheels that fit into the upper guide groove of the guide rail to prevent it from falling back and forth. , and a vertical shaft roller for steady rest fitted in each of the upper and lower guide grooves is pivotally supported.

(Example) An example of the present invention will be described below based on the attached illustrative drawings.

1 is a guide rail having a substantially U-shaped cross section;
As the cross-sectional shape is shown in detail in FIG. 2, guide grooves 4 and 5 facing each other are provided on the inside near the tips of the upper and lower overhanging parts 2 and 3, and on the outside of both the upper and lower overhanging parts 2 and 3. A pair of left and right bolt/nut raceways 6a, 6b, 7a, 7b are arranged in parallel, and furthermore, on the inner bases of both the upper and lower overhanging parts 2 and 3, there are protrusions 8 for supporting power supply rails facing each other.
a and 8b are provided in a protruding manner. Reference numeral 9 denotes a power supply and signal exchange rail unit consisting of multiple upper and lower current carrying rails 10, which is arranged in a location adjacent to the vertical wall 11 in the guide rail 1, and has current carrying rails arranged at appropriate intervals in the length direction. It is supported by a rail support 12, and both upper and lower ends of the current-carrying rail support 12 are fitted and fixed to the protrusions 8a and 8b.

Reference numeral 13 denotes a transport vehicle, which includes a drive trolley 16 which also serves as the trolley body with a speed reducer 15 directly connected to a motor 14, and collector units 17 on both the front and rear sides.
It is composed of a driven trolley 18 to which wheels a and 17b are attached, and a loading platform 19. The loading platform 19 is arranged directly above the guide rail 1 and is connected to the drive trolley 1.
6 and the upper ends of loading platform support arms 20 and 21 whose lower ends are removably attached to the outer surface of the driven trolley 18 (the side opposite to the side adjacent to the guide rail 1), the guide grooves 4 of the guide rail 1, 5, and is rotatably coupled around a vertical axis 22 (see FIG. 1) located directly above 5.

The driving trolley 16 includes a driving and supporting horizontal shaft wheel 23 that is attached to the horizontal output shaft of the speed reducer 15 and fits into the lower guide groove 5 of the guide rail 1, and a horizontal shaft wheel 23 for driving and supporting, which is mounted on the horizontal output shaft of the speed reducer 15 and fitted into the lower guide groove 5 of the guide rail 1. Lower vertical axis rollers 24a and 24b for steady rest fitting into the lower guide groove 5, and the wheel 2
an upper vertical shaft roller 25 for steady rest disposed directly above the guide rail 1 and fitted into the upper guide groove 4 of the guide rail 1; It is provided with horizontal shaft wheels 26a and 26b for preventing front and rear tilting. The drive trolley 16 has these wheels 23,
26a, 26b and rollers 24a, 24b, 2
5, the guide rail 1 is supported in such a manner that it projects outwardly from the side of the guide rail 1.

The driven trolley 18 is connected to the guide rail 1
a support horizontal shaft wheel 27 that fits into the lower guide groove 5; lower vertical shaft rollers 28a, 28b for steady rest that fit into the lower guide groove 5 before and after the wheel 27; An upper vertical axis roller 29 for steady rest disposed directly above the wheel 27 and fitted in the upper guide groove 4 of the guide rail 1, and an upper vertical axis roller 29 for steady rest disposed directly above the wheel 27 and fitted in the upper guide groove 4 before and after this upper vertical axis roller 29. It is provided with horizontal shaft wheels 30a and 30b that fit together to prevent front and back falling. The driven trolley 18, like the driving trolley 16, has wheels 27, 30a, 30b and rollers 28.
It is supported by a, 28b, and 29 in such a manner that it protrudes directly to the outside of the guide rail 1.

The collector units 17a, 17b are
As shown in the figure and FIG.
31b, a pair of current collectors 31a, 31b that are in sliding contact with the same current-carrying rail 10 are electrically connected to each other, and furthermore, each current collector 31a, 31b can be connected to the current-carrying rail 10 even if the position of the corresponding current-carrying rail 10 is slightly shifted vertically. It is elastically supported so as to smoothly slide in contact with the current-carrying rail 10 while being in pressure contact with the current-carrying rail 10. Although the basic structure is the same as that of the conventionally known one, the feature of this embodiment is that both Collector unit 17a,
Wheels 27 and 30 are provided on the driven trolley 18 between the collector units 17a and 17b by dividing the collector unit 17b into front and rear parts of the driven trolley 18.
a, 30b and rollers 28a, 28b, 29 are arranged so that the width of the entire transport device including the guide rail 1 and the transport vehicle 13 and the total length of the transport vehicle 13 can be minimized. It is in.

32a and 32b are a pair of upper and lower rail covers, which are attached to the upper raceway 6b and lower raceway 7b of the guide rail 1 via bolt nuts 33. Further, 34 is a guide rail support, which supports the lower raceway 7 of the guide rail 1.
It can be attached with bolts and nuts 35 at any position in the length direction by using a and 7b.

According to the transport device configured as described above, electric power is supplied to the transport vehicle 13 from the current-carrying rail 10 of the power supply and signal transfer rail unit 9 via the current collectors 31a, 31b of the collector units 17a, 17b. The control signal causes the motor 14 to operate and rotate the horizontal axis wheel 23 for driving and supporting the drive trolley 16.
By propelling the carriage 13, the carriage 13 can be moved forward or backward along the guide rail 1. When the transport vehicle 13 is moved, the drive trolley 16 and the driven trolley 18 are tilted back and forth in side view.
a, 30b, and is maintained in a posture parallel to the guide rail 1 in plan view by three vertical shaft rollers 24a, 24b, 25 and 28a, 28b, 29 for steady rest, respectively.

In addition, if the guide rail 1 has a curved portion in the vertical direction, the loading platform support arms 20, 2
1 and the loading platform 19, a relative turning section around the horizontal horizontal axis is interposed, and the collector unit 17
a, 17b may be configured to be able to swing in the vertical direction as well, respectively, with respect to the driven trolley 18.

Further, in the above embodiment, the loading platform was supported on the upper part of the trolley, but the driving trolley 16 and the driven trolley 1
It is also possible to suspend the cargo platform by using the cargo platform suspension arm that is detachably attached to the lower surface of the container. In this case, the upper raceways 6a, 6b
Using this, the guide rail 1 can be suspended and constructed using a hanging rod attached to an arbitrary position in the length direction of the guide rail 1 with bolts and nuts.

When connecting guide rails 1 of a certain length, the nut raceways 6a, 6b and 7a, 7b provided on both the upper and lower sides of the guide rail 1 fix both ends of the connection plate to the upper and lower sides of the guide rails 1 on both sides. It can also be used when

In addition, vertical axis rollers 24a, 24 for steady rest
The positions of b, 25 and 28a, 28b, 29 are not limited to the positions shown in the embodiment. For example, the horizontal shaft wheels 26a, 26b and 30 for preventing front and back falling
Vertical shaft rollers 24a, 24b and 28a, 28b for steady rest are arranged at the front and rear outer positions of wheels a and 30b, and vertical shaft rollers 25 and 29 for steady rest are arranged at either front or rear of horizontal shaft wheels 23 and 27 for support. It's okay.

(Operations and Effects of the Invention) According to the trolley-type conveyance device of the present invention which can be implemented as described above, the supporting horizontal shaft wheel provided on the trolley of the transport vehicle, the lower vertical shaft roller for steady rest, and the lower vertical shaft roller for steady rest are provided on the trolley of the transport vehicle. Since the upper vertical axis roller and the horizontal axis wheel for preventing front and back tipping all fit within the narrow vertical space between the upper and lower guide grooves of the guide rail, the left and right width of the trolley including these wheels and rollers is The trolley can be configured compactly by keeping it small. Furthermore, since it is only necessary to provide one vertical shaft roller for steady rest at each position, the number of parts is reduced, and the trolley can be constructed at a light weight and at low cost.

In addition, it is sufficient to form one guide groove in each of the guide rails so as to face each other inside the upper and lower overhanging portions, and this guide rail can also be constructed compactly by keeping the left and right width small.

[Brief explanation of the drawing]

Figure 1 is a vertical front view, Figure 2 is an enlarged detailed view of the main part in Figure 1, Figure 3 is a vertical side view, Figure 4 is a partially cutaway plan view of the driving trolley, and Figure 5 is the driven trolley. FIG. 1... Guide rail, 2, 3... Overhanging part,
4, 5...Guide groove, 6a to 7b...Raceway for bolts and nuts, 8a, 8b...Protrusion for supporting power supply rails, 9...Rail unit for power supply and signal exchange, 10...Electricity rail, 12 ... Current-carrying rail support, 13 ... Transport truck, 14 ... Motor, 15 ... Speed reducer, 16 ... Drive trolley, 1
7a, 17b... Collector unit, 18... Driven trolley, 19... Loading platform, 20, 21... Loading platform support arm, 23... Horizontal axis wheel for drive and support, 24a, 24b, 25, 28a, 28b,
29... Vertical axis roller for steady rest, 26a, 2
6b, 30a, 30b...Horizontal axis wheel for preventing front and back falling, 27...Horizontal axis wheel for support, 31
a, 31b... collector, 32a, 32b... rail cover, 34... guide rail support.

Claims (1)

[Scope of utility model registration request] A trolley-type transport device comprising a guide rail having a substantially U-shaped cross section and a transport vehicle equipped with a trolley guided by the guide rail, the guide rails facing each other inside upper and lower overhangs. The trolley of the conveyance vehicle includes a support horizontal shaft wheel that fits into the lower guide groove of the guide rail, and a front and rear wheel that fits into the upper guide groove of the guide rail. A trolley-type conveyance device comprising a pair of horizontal wheels for preventing front and back falling, and a vertical shaft roller for steadying that fits in each of the upper and lower guide grooves.