JPH0432335Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention allows a support shaft for suspending a transported object to be easily installed between two chains arranged in parallel without falling off. This invention relates to a conveyance chain that can improve the efficiency of assembly and disassembly.

[Conventional technology]

A so-called tray-type chain conveyor is known in which a support shaft from which a transported object or a cage containing the transported object is hung is spanned between two circulating chains to convey the transported object as the chains run. There is.

In such a conveyor, as shown in FIGS. 6 to 8, a bearing body b is conventionally fixed to an attachment part a1 attached to a chain body a using, for example, a reamer bolt c, and the shaft hole of the bearing body b is The end part e of the support shaft d was inserted into the support shaft d. Therefore, since a step f is provided between the support shaft d and the middle part of the support shaft d to prevent it from falling off, in order to install the support shaft d, it is necessary to fit the support shaft d into the bearing body b in advance. Later, the bearing body b must be attached to the chain body a.

[Problem that the invention attempts to solve]

In order to fix the bearing body b to which the support shaft d is assembled to the chain body a in this manner, it is difficult to align the bearing body b for inserting the reamer bolt c, and the assembly requires time and effort.

Another method is to attach the bearing body b to the chain body a in advance, move the chain body a laterally, and insert the end e of the support shaft d into the bearing body b, but due to the width of the device, the chain body The amount of movement of chain a is limited, and furthermore, chain body a is usually guided by guide rails h, etc., and it is not easy to move chain body a in the lateral direction.

This invention is based on the support metal fittings attached to the chain body.
A conveying chain that can easily assemble a support shaft and solve the above-mentioned problems is based on providing a hole for inserting the bearing body and connecting the hole with a groove that opens at the outer edge of the support metal fitting. intended to provide.

[Means for solving problems]

An embodiment of the present invention that can achieve the above-mentioned objects and solve the problems will be described below with reference to the drawings.

In FIGS. 1 to 5, the conveyance chain 1 has two chain bodies 2, 2 that circulate on the same and parallel circumferential surfaces, and support fittings 3 that protrude outward are attached to face each other. A hole 9 is provided in which the bearing body 7 is fitted, which has a shaft hole 6 through which the end 5 of the support shaft 4 extending between the two chain bodies 2 and 2 passes, and the outer edge of the support fitting 3 is provided in the hole 9. A groove 11 opening at 10 is provided in succession, and a locking part 12 is provided to prevent the bearing body 7 from falling off.

The chain body 2 includes an inner link 15 formed by connecting two opposing link plates 21, 21 with a pair of bushes 22, 22 spaced apart from each other, and an inner link 15 formed by inserting the bushes 22 and It is formed by alternately combining pins 23, 23 arranged at pitch intervals with the link 16, which is fitted into a link plate 24 arranged outside the inner link 15.

In addition, the chain body 2 is disposed facing each other, for example, a pair of drive chain wheels and a driven chain wheel are arranged at equal intervals on the drive shaft and the driven shaft, and by wrapping each of the outer edges of the driven chain wheel in an endless manner, two chains can be formed. The bodies 2, 2 can revolve around identical and parallel circumferential surfaces. Note that instead of the chain wheel, a pair of annular guide rails formed in the same shape may be arranged facing each other and parallel to each other, and the chain body 2 may be rotated along the guide rails.

In this example, the support fittings 3 include a pair of base pieces 2 that are integrally formed with the link plate of the outer link 16 so as to project outward from the circumferential surface.
7, 27, and a separating piece 29 interposed between the base pieces 27, 27.

The base piece 27 is a long trapezoidal plate, and in the bottom thereof, through holes 31, 31, into which the pin 23 is inserted, are provided at a pitch interval, similar to the link plate 24 of the outer link 16. The top of the base piece 27 is provided with the hole 9 through which the two base pieces 27, 27 are inserted;
A groove 11 is provided which opens on the side of the outer edge of the top and communicates with the hole 9. Note that the groove portion 11 can also be opened above or below the outer edge, or even in an oblique direction.

In addition, the support fitting 3 consists of two chain bodies 2, 2.
are provided facing each other.

As shown in FIG. 4, the support shaft 4 is a long shaft that spans between the two chain bodies 2, and in this example, a cage body A capable of accommodating the transported object W is provided at the intermediate portion 33. While hanging, the end portions 5, 5 having a smaller diameter than the intermediate portion 33 are connected to both sides of the intermediate portion 33 via the intermediate portion 33 and the step 34.

In this example, the cage body A has pillars erected at the four corners of the bottom plate B as shown in FIG. The intermediate portion 33 of the support shaft 4
Shaft holes 36, 36 are provided in which the screws can be loosely fitted. Therefore, by placing an object W to be transported, such as a car, on the bottom plate B, the support shaft 4 can suspend the object W.

The bearing body 7 has a cylindrical shape with an outer diameter that can fit into the hole 9 of the support fitting 3 and a shaft hole 6 through which the end 5 of the support shaft 3 passes.

The width of the groove 11 of the support fitting 3 is set to be smaller than the outer diameter of the bearing body 7 and larger than the end 5 of the support shaft 4. Therefore, the end 5 can be inserted into the hole 9 through the groove 11, and the bearing body 7 can be inserted into the hole 9 of the support fitting 3 while the end 5 of the support shaft 4 is inserted into the shaft hole 6. By doing so, the support shaft 4 straddles the chain bodies 2, 2, and its both ends 5, 5 are attached to the support fittings 3, 3 of each chain body 2, 2.

Note that in this embodiment, the groove portion 11 of the support fitting 3
It has a locking piece 41 in the shape of a rectangular flat plate having guide holes 40, 40 drilled at the same positions as the bolt holes 39, 39 which are transparently provided on both sides, and a locking piece 41 which is fitted on the circumferential surface of the bearing body 7. A circular notch groove 42 into which the rear edge 41A of the piece 41 fits is provided. Insert the locking piece 41 into the notch groove 42 of the bearing body 7 and remove the bolt hole 39 and guide hole 40.
the locking piece 41 using the bolt 44 that is inserted through both
By attaching the bearing body 7 to the support fitting 3,
The support shaft 4 can be prevented from falling off in the longitudinal direction. In this way, in this embodiment, the notch groove 42 of the bearing body 7,
The locking portion 12 is formed by the locking piece 41 and the bolt 44 .

Further, in this example, the outer link 16 on which the support fitting 3 is arranged has a flanged roller 46 that can guide the chain body 2 along the rail by extending the pin 23A to one side. , 46 are fitted externally.

[Effect]

Therefore, both ends 5,5 of the support shaft 4 are connected to the grooves 11,
11 into the holes 9, 9, and the bearing body 7 is fitted into the hole 9 of the support fitting 3 while inserting the end 5 into the shaft hole 6. Furthermore, by fitting the locking piece 41 into the notch groove 42 of the bearing body 7 and fixing the locking piece 41 to the support metal fitting 3, the support shaft 3 has both ends 5, 5 attached to the support metal fitting 3. It is pivotally supported and spans between the chain bodies 2, 2.
Note that the bearing body 7 is prevented from falling off in the longitudinal direction of the support shaft 4 by the locking portion 12 .

Therefore, the two chain bodies 2, 2 can orbit in parallel circumferential surfaces with the support shaft 4 attached.

〔Example〕

In addition, in the conveyance chain of the present invention, the support metal fittings may be formed separately from the link plate and both may be connected using a fixing device such as a bolt, or the support metal fittings 3 may be provided on the inner link 15. .

Also, if the locking part can prevent the bearing body from falling off,
The flange and the support metal fittings may be fixed to both sides of the bearing body using screws, or the bearing body may be locked to the support metal fittings using retaining rings that fit on both ends of the bearing body. can. Furthermore, threaded portions may be provided on the peripheral surfaces of both ends of the bearing body, and the bearing body may be locked by nuts screwed into the threaded portions to prevent the bearing body from falling off.

As described above, the conveying chain of the present invention can be modified into various forms.

[Effect of idea]

As mentioned above, the conveyance chain of the present invention has two supporting metal fittings mounted facing each other on the chain main body, and a hole for fitting the bearing body in the supporting metal fitting, which communicates the groove through which the end of the support shaft can pass. Because of this provision, the spindle can be easily assembled to the chain body, improving work efficiency, and can be easily formed, which also helps in reducing costs.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is an enlarged sectional view taken along the line A-A, Fig. 4 is an exploded perspective view thereof, and Fig. 5 is an exploded perspective view thereof. A perspective view showing an example of suspending an object to be transported from a support shaft, and FIGS. 6 to 8 are diagrams illustrating the prior art. 2... Chain body, 3... Support metal fittings, 4...
Support shaft, 5... end, 6... shaft hole, 7... bearing body,
9... Hole, 10... Outer edge, 11... Groove, 12
...Locking part, W...Transportation object.

Claims (1)

[Scope of utility model registration request] Support fittings protruding outward from the circumferential surface are attached facing each other to two endless chain bodies that revolve around the same and parallel circumferential surfaces, and the two chain bodies are straddled and transported to the supporting fittings. A hole for fitting the bearing body is provided, which has a shaft hole through which the end of the support shaft through which an object can be suspended, and a hole is provided in the hole for fitting the bearing body, and the hole has a diameter smaller than the outer diameter of the bearing body and smaller than the outer diameter of the end of the support shaft. 1. A conveying chain comprising a groove having a large width and opening at the outer edge of a support metal fitting, and a locking portion for preventing the bearing body from falling off in the longitudinal direction of the support shaft.