JPS5928973Y2 - top plate chain - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a top plate chain having a flat plate portion (referred to as a top plate) for conveyance at the top of the chain, particularly as a guide for sliding each top plate along a guide rail. The guide leg extends downward from the flat plate part.

Conventionally, as shown in FIGS. 1 to 3, a top plate chain 1 of this type has a guide leg 2 attached to a top plate 3.
It has been proposed to be integrally fixed to the lower surface of the (disclosed in Japanese Utility Model Publication No. 55-6939).

That is, a pair of front connecting members 4A and 4B are protruded forward at the left and right positions of the front edge of each top plate 3, and a pair of front connecting members 4A and 4B of the rear top plate is positioned approximately in the center of the rear edge. A rear connecting member 5 having a horizontal width and a front-to-back length that can be inserted into the rear connecting member 5 is made to protrude rearward, and connecting holes 7 and 8 are formed so as to pass through the front connecting members 4A, 4B and the rear member 5 of the adjacent one-hep plate 3 in the left-right direction. By inserting connecting pins 9 into the connecting holes 1 and 8, each top plate 3 is connected back and forth so as to be bendable in the vertical direction, forming a top plate chain 1 as a whole.

Here, for example, the inner diameter of the connecting hole 8 of the rear connecting member 5 is the pin 9.
The outer diameter of the top plate chain 1 is larger than the outer diameter of the guide rail 11A.
and 11B so that it can slide.

In this way, in order to run each top plate Lz-plate 3 along the guide rails 11A and 11B, the left and right positions of each top plate 3 are approximately at the center in the front and back direction.
A pair of guide legs 2A and 2B are fixed so as to extend downward and outward.

The spacing between the outer surfaces of the left and right guide legs 2 and 2B is selected to be slightly smaller than the spacing between the inner surfaces of the guide rails IIA and 11B, and as the left and right guide legs 2A and 2B expand downwardly and outwardly. The inner surfaces of the guide rails IIA and 11B also extend downward and outward, and as the left and right guide legs 2 and 2B come into sliding contact with the guide rails 11A and 11B, each of the top plays 1 and 3 floats upward. The vehicle can run along the guide rails 11A and 11B without any problems.

In order to fix the pair of guide legs 2A and 2B to the top plate 2, through holes 1 are provided at the left and right positions of the top plate 3.
2A and 12B are bored, and the upper corners of the front and rear sides of the plates forming the front guide legs 2A and 2B are cut off to form front and rear shoulders 13A and 13B, as shown in FIG. There is.

Neck part 1 that is sandwiched between shoulders 13A and 13B and protrudes upward
4 is selected to be longer than the thickness of the third plate of the top plate, and with the neck portion 14 inserted into the through holes 12A and 12B of the top plate 3, the portion that protrudes toward the upper surface of the top plate 3 is pressed to form the through holes 12A and 1. The guide legs 2A and U2B are fixed to the top plate 3 by pressing and caulking them into the top plate 3.

Furthermore, the protruding portion remaining on the upper surface of the top plate 3 is polished and finished.

FIG. 4 shows the lower end portions 15A and 15B of the guide legs 2 and 2B bent so as to extend outward along the top plate 3, thus forming the lower surface of the top plate 3 and the bent lower end portion 15A.

By holding the guide rails 11A and 11B between the guide rails 15B, the guide rail 11A of the top plate 3
and 11B is made to be as small as possible.

According to the conventional structure shown in FIGS. 1 to 4, it is possible to obtain a top plate chain 1 that can reduce the labor required for assembly with a relatively simple structure, and furthermore, the shoulder portion 13
By crimping the neck portion 14 into the through holes 12A and 12B with A and 13B pressed against the lower surface of the top plate 3, the fixing strength of the two guide legs and the top plate 3-. of 2B is increased. can.

However, in the configurations shown in FIGS. 1 to 4, when assembling, the two left and right guide legs and 2B made of flat plate materials are kept in a diagonally extended state with respect to the top plate 3, and the neck 14 is Caulking work has to be done,
In order to perform this work reliably, it is essential to prepare a special jig.

In particular, in the case of FIG. 4, since the shapes of the two guide legs and 2B are complicated, an even more complicated jig is inevitably required.

In consideration of the above points, the present invention attempts to propose a top plate chain that can further reduce the labor during assembly and further increase the strength of fixing the guide legs to the top plate.

An example of the present invention will be described in detail below with reference to the drawings.

5 and 6 show a first embodiment of the present invention, in which the two left and right guide legs and 2B have a fixing part 21 that extends upward and is integrally fixed to the top plate 3. , a support part 22 that bends from this fixed part 21 in the left and right directions and extends along the lower surface of the top plate 3, and a sliding contact that extends outward from the left and right ends of this support part 22 to the left and right bottom. It consists of part 23.

However, at approximately the center position of the top plate 3, there is a left and right guide leg 2A, which has a length slightly larger than the width of the two left and right guide legs 2B in the front-rear direction, and a left and right guide leg 2A in the left-right direction.
A through hole 24 having a width slightly larger than the total thickness of the fixing portion 21 of the fixing portions 21 and 2B is bored, and the guide leg portion 2 is inserted into the through hole 24.
With the fixing parts 21 of the person and 2B placed back to back and inserted from below, the part protruding upward from the top plate 3 is caulked and fixed in the through hole 24 by a press.

According to the configuration shown in FIGS. 5 and 6, the left and right guide legs 2
The fixing parts 21 of A and 2B are connected to the through holes 24 of the top plate 3.
When caulking, since the fixing part 21 extends upward from the support part 22 in a substantially perpendicular direction, the protrusion 21 of the fixing part 21 from the top plate 3 is attached to the lower surface of the support part 22 extending in the horizontal direction. Press easily and reliably just by applying the ingredients! be able to.

Moreover, after the fixing part 21 is caulked and fixed to the top plate 3 in this way, the sliding contact part 23 is fixed to the guide rails 11A and 11.
When the top plate 3 is run while in sliding contact with the guide legs 2A and 2B, the force applied to the sliding contact part 23 can be received by the lower surface of the top plate 3 via the support part 22. can be relatively firmly attached to the top plate 3.

In the case of FIG. 5, the left and right guide legs 2B and 2B are placed back to back and are swaged into the common through hole 24. Through holes 25A and 25B specific to the two right guide legs and 2B
may be provided at the left and right positions, and the left and right guide legs 2 and 2B may be caulked and fixed to the respective through holes 25A and 25B. Even in this manner, the same effect as described above with respect to FIG. 5 can be obtained. Obtainable.

FIG. 8 shows another embodiment of the present invention, in which the guide leg 2 is positioned upwardly at approximately the center of the upper surface of the support section 27, which is provided with sliding contact sections 26A and 26B at both left and right ends. Fixed part 2
8 is protrudingly extended.

In this way, the fixing portion 28 can be easily caulked and the number of parts can be reduced.

FIG. 9 shows still another embodiment of the present invention, in which the support part 28 in FIG. 8 is divided into two parts, a left support part 29 and a right support part 29
It has the same configuration as A and 29B.

In this way, the fixing parts 29A and 29B can be easily caulked, and the guide leg part 2 can be more firmly fixed to the top plate 3.

In the above embodiment, as shown in FIG. 6, the width of the fixing part 21 was set to be the same as the width of the supporting part 22, but instead of this, the front and rear parts were cut out as shown in FIG. 10 to form shoulders 31A and 31B. may be formed.

In this way, the fixing part 21 can be caulked into the through hole 24 with the shoulders 31A and 31B in contact with the lower surface of the top plate 3, so that the caulking process can be made easier, and the guide leg The fixation of 2A and 2B to the top plate 3 can be further strengthened.

The same applies to the embodiments shown in FIGS. 7 to 9.

[Brief explanation of the drawing]

1, 2, and 3 are a plan view, a front view, and a perspective view showing an example of a conventional top plate chain, FIG. 4 is a sectional view showing another conventional example, and FIG. 5 is a top plate chain according to the present invention. 6 is a perspective view showing the guide legs thereof, FIGS. 7 to 9 are sectional views showing other examples of the present invention, and FIG. 10 is the guide legs. It is a perspective view showing a modification of . 1...Top plate chain, 2,2A,
2B...Guide leg, 3...Top plate, 4A. 4B, 5... Connection part, 1, 8... Connection hole, 9... Connection pin, 11A, IIB...
・・Guide rail, 12A, 12B, 24, 25A, 2
5B...Through hole, 21.28, 29A, 29B.
...Protrusion part, 22゜27...Support part, 2
3.26A, 26B...Sliding contact parts.

Claims (5)

[Scope of utility model registration request] (1) For each top plate, a support part extends along the bottom surface of the top plate, a sliding contact part extends downward to the left and right from the left and right ends of the support part, and a sliding part extends upward from the support part. A top plate chain comprising: a guide leg having a fixing part; the fixing part penetrates from below into a through hole provided in the top plate, and is caulked and fixed in the through hole. (2) The guide leg consists of a pair of left and right guide legs,
Claim 1 of the Utility Model Registration Claim in which the fixing parts of the left and right guide legs are placed back to back and are caulked and fixed in one through hole provided in the top plate. top plate chain. (3) The guide legs are a pair of left and right guide legs,
The top plate according to claim 1, wherein the fixing parts of the left and right guide legs are caulked and fixed to a pair of through holes provided at the left and right positions of the top plate, respectively. chain. (4) The guide leg portion includes a plate-shaped support portion, a fixing portion that protrudes upward from approximately the center of the upper surface of the support portion, and left and right portions provided at the left and right ends of the support portion. The top plate chain according to claim (1), which is a registered utility model, and has a right sliding contact part, and the fixing part is caulked and fixed in a through hole provided in a substantially central position of the top plate. (5) The guide leg portion includes a plate-shaped support portion, a pair of fixing portions that protrude upward from left and right positions on the upper surface of the support portion, and provided at the left and right ends of the support portion. Utility model registration claim No. 1, comprising left and right sliding contact parts, and the pair of fixing parts are caulked and fixed in a pair of through holes provided at the left and right positions of the top plate, respectively. Top plate chain as described in section.