JPS5928972Y2 - top plate chain - Google Patents

Description

[Detailed description of the invention] The present invention relates to a so-called top plate chain having a flat plate for conveyance at the top of the chain. It relates to something that has a guide (guide leg) for

Conventionally, top plate chains (or conveyor chains) made of metal have been used by fixing a conveying plate (flat plate) to the top of a regular roller chain by welding or riveting, or by using a mold to connect the plate part. It is known that the chain members are integrally cast and the front and rear chains are connected using pins.

Many of these top plate chains have to run on curved sections due to work requirements, but due to the force applied to the chain (conveyor) and the running speed, the entire chain or One side often sticks out.

In order to prevent this, it has been considered that the chain is provided with a guide (guide leg) that prevents the guide rail on the outer side of the circumference from lifting up before sliding progress.

However, in the conventional method, the guide (guide leg) was welded to the chain body or top plate.
In this method, each chain or plate must be welded one by one, which requires a considerable amount of time and expense.

In order to eliminate such drawbacks of the top plate chain, the present applicant filed a patent application No. 99504 (Utility Model Registration Application No. 99504) filed in 1972 (publication of Utility Model Publication No. 1987-6939) by creating a through hole in the upper end of the top plate made of metal. A top plate chain has been disclosed in which a fitting curved piece provided at the upper end of a guide leg is fitted into the top plate chain, and the plate is pressed and caulked from above.

The object of the present invention is to improve such a top plate chain in which a through hole is provided in the top plate, and the upper end of the guide leg is inserted into the hole and is pressed and fixed by caulking.

In the top plate chain disclosed in the utility model,
The guide legs usually expand outward, so when they are inserted into the top plate and pressed and swaged, the angle of the guide leg's expansion may be distorted, and if the swage is not sufficiently swaged, the weight on the plate may be distorted. Due to the lateral force applied from the guide rail, there was a risk that the caulking of the guide legs would loosen or fall off if used for a long period of time.

Therefore, in the present invention, in addition to the insertion bending piece, the guide leg is provided with a support piece that extends horizontally at the upper end of the leg, so that the leg can be easily secured both when the guide leg is caulked to the top plate and during use. To provide a top plate chain that can be fixed and maintained at a desired angle and does not loosen or fall off.

- The structure of the present invention will be explained below along with the embodiments shown in the attached drawings.

Figures 1 to 4 show the top plate chain disclosed by the present applicant in Utility Model Registration Application No. 99504 of 1971, and Figures 5 and below show the features of the present invention.

Reference numeral 1 in the figure represents a chain that is a unit element constituting a top plate chain (or conveyor chain).

The top plate chain, which is a unit element, has a flat and wide top plate 11 for conveying goods at the top, a pair of front connecting members 12 that connect the unit chain elements back and forth, and a rear connecting member 12 located at the rear center of the plate. It has a connecting member 14.

The connecting member is provided with through holes 13 and 15 in the center thereof, into which the pin 3 is inserted, and the through holes are formed by punching and bending a single metal plate integrally with the plate. It is cast integrally with the plate using a mold.

A pair of through holes 17 are provided in the center of the plate 11 for fixing the leg portions 2, and a fitting curved piece 21 provided at the upper end of the guide leg portion 2 with a slight interposition is inserted into the through holes 11. inserted.

The height of the curved piece 21 is configured to be slightly higher than the thickness of the plate, and after insertion, the top of the curved piece 21 is pressed and caulked from above to be fixed to the plate 11.

After pressing, the top of the curved piece is ground to be flush with the plate, forming a smooth conveying plate.

- Figures 5 to 9 show embodiments of the present invention.

The guide leg portion 2 shown in FIG.
It consists of

This guide leg 2 is inserted into the through hole 17 of the plate 11 and pressed to fix the guide leg 2.

When the guide leg 2 is inserted into the through hole 17, the support piece 23 contacts and supports the lower part of the plate 11, so that the insertion into the through hole, the positioning during pressing, and the pressing and caulking processes are all performed easily and reliably. can be done.

FIG. 6 shows another embodiment, which includes a pair of curved pieces 21, 2.
1 and a support piece 23 between them, and compared to FIG. 5, the positions of the fitting curved piece 21 and the support piece 23 are reversed.

In this embodiment, a pair of through holes are provided on the left and right sides.

FIG. 8 shows yet another embodiment.

In FIGS. 5 and 6, the support member 23 is bent in the horizontal direction, but in FIG. , steps 24 are configured to abut and support plate 11.

In the embodiment shown in FIG. 9, the through hole 11 in FIG.
Instead, the curved piece 21 is used by being fitted into the groove 18, but if the fitting is weak, the guide leg 2 and the plate 11 may be fixed by welding at the inner upper end 25 of the step 24.

The guide leg 2 configured in this manner slides along the guide 4, but the hanging portion of the leg is sloped outward to prevent the chain (conveyor) from floating up while traveling on a curved portion. It's a must have.

In a further embodiment, an L-shaped horizontal stabilizing piece 22 is provided at the lower end of the depending leg in order to completely prevent lifting.

During operation, in the space 16 sandwiched between the pair of front members 12,
The rear part 14 of the front unit top plate chain is inserted, and the pins 3 are inserted through the respective through holes 13 and 15 so that the chain elements can pivot relative to each other.

Thereafter, unit chain elements are similarly connected endlessly over the required length by pins 3, and the article is conveyed and run along straight and curved sections along pre-provided guide rails 4 without floating up.

As a result of the present invention configured as described above, the curved piece 21 of the guide leg 2 is inserted into the through hole 17, and the support piece 23 or step 24 is still in contact with the lower surface of the plate 11 and fixed with a jig. Insertion into a hole, positioning, pressing, and caulking become easy and reliable, and the angle of the guide leg 2 does not become erroneous during pressing.

Furthermore, the presence of the support piece 23 prevents the guide leg portion 2 from loosening or falling off even when the weight on the plate during use or lateral force is applied from the guide rail 4 while traveling on a curved section.

In this way, there is no need to weld the guide legs 2 one by one,
The guide leg part 2 manufactured in advance can be easily attached to the plate 11 by simply inserting and pressing the guide leg part 2, and the guide leg part 2 has no deviation in angle and can be prevented from falling off.

[Brief explanation of the drawing]

FIGS. 1 to 4 are explanatory diagrams showing a conventional top plate chain and its guide leg. 5 is a perspective view showing the guide leg 2 according to the present invention, FIG. 6 is a perspective view showing another embodiment, and FIG. 7 is a state in which the guide leg shown in FIG. 5 is inserted and fixed to the plate 11. FIGS. 8 and 9 are partially cutaway enlarged views showing other embodiments. 1...Top plate chain, 2...
・Guide leg, 3...pin, 4...guide rail, 11...top plate, 12...
...Front connecting member, 13°15...Through hole,
14... Rear connecting member, 16... Fitting space, 17... Through hole, 18... Groove,
21...Bending piece, 22...Stabilizing piece, 23
...Support piece, 24... steps.

Claims (4)

[Scope of utility model registration request] (1) In a top plate chain consisting of a top plate having a pair of front connecting members and a rear connecting member and a pair of guide legs, a support piece that is integral with the guide legs and extends in the horizontal direction, and a support piece that is integrated with the guide legs and extends horizontally, and The curved piece at the upper end of the guide leg is inserted into each of the pair of integrally provided through holes.
The chain is pressed and fixed, and the legs are flared outwards. (2) The guide leg portion has a pair of support pieces on both sides of the fitting curved piece.
Top plate chain described in section 1). (3) The guide leg portion has a pair of fitting curved pieces on both sides of the support piece.
Top plate chain described in section 1). (4) The top plate chain according to claim (1), wherein the guide leg portion is provided with a step that abuts the back surface of the top plate in the longitudinal direction of the fitting curved piece.