JPH0114535Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a transportation moving body having an object support stand supported by a pair of front and rear trolleys, a pair of left and right guide rails movably supporting the trolleys, and a pair of left and right guide rails that movably support the trolleys. The present invention relates to a floor conveyor equipped with a means for propelling the conveying body via a driven dog provided on the conveying body, that is, a type of floor conveyor that does not use a cart to support the conveyed object support platform. The object of the present invention is to effectively suppress the horizontal shaking of the object support platform, even though it does not use a trolley.

Hereinafter, one embodiment of the present invention will be described based on the attached illustrative drawings. In FIG. It consists of a stand 6. The first trolley 2 and the second trolley 3 have a universal joint 7
a, 7b and a connecting rod 8, and the third trolley 4 and fourth trolley 5 are connected to each other via universal joints 9a, 9b and a connecting rod 10. The second trolley 3 and the third trolley 4 are capable of relative rocking around the horizontal horizontal axes 11a and 11b and relative rotation around the vertical axis at both front and rear ends of the conveyed object support stand 6. They are supported in a stable state and are connected to each other by the conveyed object support stand 6. Each of the trolleys 2 to 5 includes a supporting horizontal shaft roller 13 that fits into a pair of left and right guide rails 12 shown in FIG. A second trolley 3 and a third trolley 4 are rotatably supported by vertical shaft rollers 14, and further support a conveyed object support stand 6.
Further, a vertical shaft roller 15 for preventing rocking is additionally pivotally supported and is loosely fitted between the opposing lower edges 12b of the guide rail 12. 16 is a main driven dog connected from the first trolley 2, and 17 and 18 are boosting driven dogs connected from the third trolley 4 and the fourth trolley 5.

19 is a propulsion means, which includes a pair of left and right guide rails 20, a pusher-equipped trolley 21 movably supported by the guide rails 20, a hanging trolley 22, and these trolleys 21, 2.
It has a drive chain 23 suspended by 2. The movable pusher 24 provided on the pusher-equipped trolley 21 is rotatably supported by the main driven dog 16 of the transport moving body 1, and is basically the same as the conventional pusher. be.

As shown in FIG. 2, the upper and lower edges 12a and 12b of the pair of left and right guide rails 12 are provided with protruding stripes 25 and 26 that protrude upward and downward, respectively. These protrusions 25 and 26 are formed by welding separate square pieces to the guide rail 1, as shown in FIG.
2, or may be formed integrally with the guide rail 12 as shown in FIG.
In either case, the contact surfaces of the anti-sway vertical shaft rollers 14, 15 are widened in the vertical direction due to the presence of the protrusions 25, 26, but in particular, as shown in the figure, the contact surfaces of the vertical shaft rollers 14, 15 for preventing shaking are expanded in the vertical direction. The height of the protruding strip 25 is made larger than the height of the protruding strip 26 connected to the lower edge 12b of the guide rail.

According to the above configuration, by moving the pusher trolley 21 by the drive chain 23, the main driven dog 1 engages with the pusher 24.
6, the transport moving body 1 has a guide rail 12
It is moved integrally with the drive chain 2 while being guided by. When the conveyance vehicle 1 is propelled by the propulsion means 19 in this way, the conveyed object support stand 6 supported only by the front and rear pair of trolleys 3 and 4 is easily swayed in the left and right directions. be.
However, the trolleys 3 and 4 have only one guide rail.
Since vertical shaft rollers 14 and 15 for preventing shaking are pivotally supported and loosely fitted between the upper and lower edges 12a and 12b of 2, the lateral shaking is greatly suppressed.

According to the configuration of the present invention as in the above embodiment, even though the conveyed object support in the conveying moving body is supported only by the pair of front and rear trolleys, it is not supported by the trolleys. Due to the presence of the vertical shaft rollers for preventing vertical shaking, the horizontal shaking of the object supporting table can be greatly suppressed, and the object can be transported safely. Furthermore, the pair of left and right guide rails are provided with protrusions that protrude vertically and outwardly from both the upper and lower edges of the guide rails, thereby enlarging the contact surface of the vertical shaft rollers for preventing shaking. This reduces wear and tear on the abutment areas between the stopper vertical axis roller and the upper and lower edges of the guide rail, and not only maintains a good anti-sway effect over a long period of time, but also reduces the wear and tear on the abutting parts of the vertical shaft roller and the upper and lower edges of the guide rail. The distance between the upper end of the contact portion and the lower end of the roller contact portion at the lower edge of the guide rail is widened, and the anti-sway effect is improved. Furthermore, according to the present invention, the height of the protrusion continuous to the upper edge of the protrusion is made greater than the height of the protrusion continuous to the lower edge, so that the overall height of the protrusion is increased. As described above, while increasing the distance between the outer ends of the upper and lower roller contact portions, the guide rail in the propulsion means disposed below the guide rail (guide rail 20 of the embodiment) There is no need to particularly increase the distance between the guide rail and the guide rail that guides the conveying moving body, and the overall structure can be made compact, and the brackets and the like that integrally support both guide rails can be used as is. There is.

In addition, in FIG. 1, 13a is a brake cam for anti-back of the conveyance moving body provided on the second trolley 3, and is one of the horizontal shaft rollers 13 pivotally supported on the second trolley 3. Alternatively, it comes into sliding contact with a pair of left and right rollers 13 to prevent the rollers 13 from rotating in reverse.

[Brief explanation of the drawing]

FIG. 1 is a side view, FIG. 2 is an enlarged longitudinal sectional front view of a main part, and FIG. 3 is a longitudinal sectional front view showing a modification. 1...Transportation moving body, 2-5...Trolley, 6
...Transferred object support stand, 8, 10...Connection rod,
12...Guide rail for guiding a moving body for transportation, 12
a...Relative improvement edge, 12b...Relative improvement lower edge,
13... Horizontal shaft roller for support, 14, 15...
Vertical axis roller for anti-swaying, 16... Main driven dog, 19... Propulsion means, 20... Guide rail for guiding drive chain, 21... Trolley with pusher, 23... Drive chain, 24... Movable pusher, 25 , 26...Protrusion portion.

Claims (1)

[Scope of utility model registration request] A transporting moving body having an object support stand supported by a pair of front and rear trolleys, a pair of left and right guide rails movably supporting the trolleys, and a driven dog provided on the transporting moving body. The pair of front and rear trolleys supporting the conveyed object support table includes means for propelling the conveying moving body through the conveyance moving body, and the pair of front and rear trolleys supporting the conveyed object support table includes a swing prevention means that is loosely fitted between the relatively raised edges of the pair of left and right guide rails. A vertical axis roller and an anti-sway vertical axis roller loosely fitted between the relative lower edges of the guide rails are provided, and the pair of left and right guide rails are provided with vertical axis rollers that protrude upward and downward from both upper and lower edges thereof. Protrusions are provided in series to increase the contact surface of the anti-sway vertical shaft roller, and the protrusions are arranged in such a way that the height of the protrusions continuous to the upper edge is connected to the lower edge. A cartless floor conveyor whose height is greater than the height of the installed protrusions.