JPS6190906A - Chain conveyor having reduced contact pressure at front and rear positions of material to be transferred - Google Patents

Abstract

PURPOSE:To prevent a material to be transferred from being damaged, by foldably coupling outer and inner link plates of two conveyor chains with each other such that the upper surface of each chain is flush with the outer periphery of a roller. CONSTITUTION:A link plate 10 having a flat surface 11a at its top and integrally formed in a U-like shape opened outward, and inner plates associated with the former are secured with each other by means of a bushing 13. That is, the inner link plate 12 is foldably coupled to the outer link plate 10 at one end of a stay pin 15 in such a condition that the inner link plate 12 is inserted in the outer link plate 10 together with a chain roller 14 rotatably fitted onto the bushing 13, being overlapped with the inner side of the outer link plate 10. With this arrangement, even though a chain 16 is folded, the rollers are never made into contact with each other, and a material to be transferred may be conveyed on the roller even if the material is slipped from the outside of the chain to the rollers, since the upper surface of the chain and the outer peripheral surface of each roller are flush with each other, thereby it is possible to prevent the material to be transferred from being damaged.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to cases in which the forward movement of transported objects on a conveyor is prevented without stopping the conveyor, and the transported objects are accumulated on the conveyor in front and behind each other. The present invention relates to a chain conveyor that reduces mutual contact pressure between objects to be transported due to frictional force between the objects and the conveyor.

Prior Art FIG. 15 shows a conventional flat top chain conveyor. This conveyor has a problem in that when the transferred object M is stopped by the stopper 1 during operation, the transferred objects M in front and behind are pressed against each other by the frictional force between the transferred object M and the top plate 2, causing damage.

As shown in Figure 16, the improvement measures are as shown in
891) Publication No. 0, Special Publication No. 55-891) Publication No. 1) 2
A conveyor has been proposed in which a stay pin 5 is supported on a bearing 4 attached to a link of a conveyor chain 3, and an object M is loaded onto a roller 6 which is rotatably supported by the stay pin 5.

In this case, when the transferred object M is stopped at the stopper 1, the roller 6 rotates, and only a slight forward force equivalent to the rotational friction of the roller 6 acts on the transferred object M, so the pressure contact force between the transferred objects is weak. Damage is significantly reduced. However, when the chain 3 becomes longer, the bearings 4, stay pins 5 and rollers 6
Since the tension on the return side of the chain 3 due to the weight of There must be. in this case,
The chain 3 is curved into a mountain shape as shown in FIG. 18 due to the support members 7 to 9, and the rollers 6 of adjacent bearings 4 come into pressure contact with each other, which may cause damage to the rollers 6. Since the roller 6 is generally made of plastic, the risk of said damage is high.

Problems to be Solved by the Invention The mutual pressure contact of the rollers 6 is caused by the fact that the rollers 6 protrude laterally from the bending center plane of the chain 3. Therefore, the present invention eliminates such protrusion and prevents damage caused by contact between rollers.

Means for Solving the Problems The present invention provides a structure in which each outer link plate and each inner link plate of two conveyor chains are connected to each other at each end of a stay pin in which a plurality of rollers for loading transferred objects are freely inserted and supported. Either the ends of the stay pins are inserted into the hollow shaft that connects the inner and outer link plates, and the upper surface of each conveyor chain forms a flat surface that is substantially at the same height as the outer peripheral surface of the roller. The main purpose of this paper is to construct a chain conveyor that reduces the front and rear contact pressure of transported objects.

Operation All of the rollers for loading objects to be transferred are supported through stay pins whose ends are inserted through the connecting points of the inner and outer link plates of the chain, and the chain moves while supporting the objects to be transferred on the rollers. Therefore, even if the chain bends along the sprocket or guide plate, the rollers do not come into contact with each other. Furthermore, since the upper surface of the chain is a flat surface that is approximately at the same height as the outer circumferential surface of the rollers, the object to be transferred can be shifted from the outer side of the chain onto the rollers.

Embodiments Figures 1 to 8 are elevational views and sectional views taken along A-A of four embodiments in which the stay pin also serves as a connection between the inner and outer link plates of the chain. The chain is uncoupled. Figures 9 to 14 are elevational views and BB sectional views of three types of embodiments in which the inner and outer link plates of the chain are connected by a hollow shaft, and both ends of the stay pin are inserted into the hollow shaft. Even if the stay pin is pulled out, the chain connection is maintained.

Next, each embodiment will be explained in turn. In FIGS. 1 and 2, 10 is an integrally formed U-shaped outer link plate whose upper surface is a flat surface 1), 12 is an opposing inner link plate, and 13, and together with a chain roller 14 which is rotatably fitted onto the bush 13, are inserted into the outer link plate 10 in an overlapping manner, and are connected to one end of a stay pin 15 so as to be freely bent.
A chain 16 is formed. 17 is a retaining ring for preventing the stay pin 15 from being removed.

A chain 16 with a similar structure is attached to the other end of the stay pin 15.
A plurality of plastic rollers 18 are rotatably inserted and supported by the stay pin 15 between both chains. The roller 18 has an outer circumferential surface having an outer diameter that is substantially the same height as the flat surface 1).

The chains 16 on both sides move as the chain rollers 14 mesh with sprockets, and load the object onto the rollers 18.

In the embodiment shown in FIGS. 3 and 4, the inner link plate 12a has a semi-cylindrical upper joint portion 19 having a flat surface 1)a made wider by ribs 19a on both sides, and a stay pin insertion hole 20. The outer link plate 10 is integrally formed with the bridging portion 21 having a lower half portion, and the outer link plate 10 is formed directly under the brim 19a.
A is connected to the inner link plate by a stay pin 15a. The rest is the same as the embodiment shown in FIG.

The chain 16a of this embodiment moves with its 41 entwined portion 2I meshing with the sprocket.

In the embodiments shown in FIGS. 5 and 6, the upper joint portion 19 in the embodiment shown in FIG. The structure is simpler than that shown in Fig. 3.

7 and 8, the outer collar 19a of the embodiment shown in FIG. 3 is extended beyond the outer link plate 10a to the outer end of the stay pin 15a, and the chain conveyor of the present invention is used in multiple rows. This takes into account the convenience of transportation.

In the embodiments of FIGS. 9 and 10, inner link play 1-1
2C is integrally formed in a U-shape with a flat upper surface 1)c, and both ends of a bushing 22 are fixed to this, and the outer link plate 10C is a hollow shaft 2 that fits inside the bushing 22.
A stay pin 15 is fixed to both ends of the hollow shaft 23.
One end of the is inserted. The rest is the same as the embodiment shown in FIG.

In this embodiment, since the inner and outer link plates are connected by the bushing 22 and the hollow shaft 23, the stay pin 15
Even if the chain is pulled out from the hollow shaft 23, the chain connection is maintained.

1) and FIG. 12 are similar to each other except that the inner link plate 12C in FIG. 9 is formed by connecting a flat inner link plate 12d and an inverted inner link plate 12e with a bushing 22. This is similar to the embodiment shown in FIG.

The embodiments shown in FIGS. 13 and 14 correspond to the inner link plate 12C and bushing 22 in the embodiment shown in FIG. 9, which are integrally constructed as in the embodiment shown in FIG.

In any of the above embodiments, the outer link plate or the inner link plate or both link plates on the upper surface of the chain form a flat surface to facilitate the sliding of the conveyed object on the chain onto and off the rollers 18.

Effects of the Invention According to the present invention, since the stay pin also serves as a link between conveyor chain links or is inserted through a hollow shaft for connecting a chain, the rollers supported by the stay pin do not come into contact with each other even when the chain is bent. This has the effect of reliably preventing damage to the rollers due to such contact, and since the chain and rollers are at the same height, it is possible to load and unload objects by shifting them onto the rollers from the side. There is.

[Brief explanation of the drawing]

In Figures 1 and 2, Figures 3 and 4, Figures 5 and 6, Figures 7 and 8, the stay pin also serves as a chain connection.
Elevation views and sectional views taken along the line A-A of each of the embodiments of the species, No. 9
Figure and Figure 10, Figure 1) and Figure 12, Figure 13 and Figure 14
The figures are elevational views and cross-sectional views taken along the line B-B of three embodiments in which the stay pins are inserted through the hollow shafts for connecting chains. The figure is an elevational view of a conventional example with rollers, No. 17
Figures +1), (2), and (3) are elevational views showing the support structure on the chain return side in the conventional example shown in Figure 16, and Figure 18 is a partially enlarged view showing the state of roller pressure contact in the support structure. 10, 10a, 10b, 10cm outer link plate 1), lla, flb, 1)c...flat surface 12
, 12a, 12c, 12d, 12e---Inner link plate 15.15a...Stay pin 16.16a...Conveyor chain 18...Roller 19...Upper coupling portion 20...Stay pin insertion hole 21・・Lower half 22
... Bush 23 ... Hollow shaft agent Patent attorney Yujo - 1 other person Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 8 lla Fig. 9 Figure 10 Figure 1) Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Procedure Ne City Official Book (Method) % Formula % Display of 15 Cases Patent Application 1982-2103482, Title of the invention Chain conveyor 3 that reduces the front and rear contact pressure of transferred objects, Relationship to the amended case Applicant name (335) Tsubakimoto Chain 4 Co., Ltd. Agent 105 Address Toranomon 2, Minato-ku, Tokyo 4th floor, Kazutaka 1θ Building, 6-7 Chome, Tel: 508-18516, subject to correction
Drawing 7, content of amendment The fraction number not assigned in the attached drawing is added to Fig. 17. Yayu 7.1) 1yo 21 September 1985 180 Director-General of the Chamber of Commerce Uga Michibu Tono 1, Display of $ Patent Application 1985-2103482
, Name of the invention Relationship with the case of a person who makes a four-point 3, iiR correction to a chain controller that expresses the front l & contact pressure of transferred objects Applicant name (335) Tsubakimoto Chain 4, Co., Ltd.
Agent Address: 2-6-7-5 Toranomon, Minato-ku, Tokyo 105
Date of amendment order: 6. Subject of amendment: Detailed explanation of the invention in the specification. Part 1 of the brief explanation of the drawings, Drawing 7, contents of the amendment + 1) The following statement is added between lines 15 and 16 on page 9 of the specification. In the embodiment shown in FIGS. 15 and 16, both ends of the stay pin tsb are made into small diameter parts 24, and the holes of the inner outer link plate 10d are loosely fitted into these, and the tip parts of the small diameter parts 24 are Notches 25 are provided alternately, and one hole of the outer link plate floe is a cutout circle that engages with the notch 25 to prevent rotation of the skating pin 15b.Outer link plate 10e
A common retaining ring 17a for preventing removal is engaged with the protruding portions of the pair of narrow diameter portions 24 that are connected to each other. The upper part of the inner link plate 12' is bent outward so that the upper surface 26 is at the same height as the roller 18, and the tip thereof is made to protrude further outward than the tip of the narrow diameter part 24,
The periphery of the upper surface 26 is chamfered to facilitate the movement of objects when the present chain controller is used in multiple rows. Contrary to the above, bend the top of the outer inner link plate inward so that the tip goes over the lowered upper surface of the inner outer link plate.
ζ It is also good to have it close to the U-ra 8. In the above structure, the chain can be disconnected by removing the retaining ring 17a. ” ■No. 100, line 16 “Next to Figure 14 J”, and
Add Figure 5 and Figure 16 [i>J. (3) Change “Type 3” in line 18 to “Type 4 j,” line F in line 19.
Figure 15 J has been changed to ``Figure 17'' and line 20 [Figure 16 J
"Figure 18" and "Figure 17" in the first line of page 1) of the same page as "Figure 18".
19, the 1st and 2nd lines ``Figure 16'' are corrected to ``Figure 18,'' and the 3rd line ``Figure 18'' is corrected to ``Figure 20.'' (4) Add attached figures 15 and 16. (5) Figures 15 to 18 are corrected to the accompanying drawings Figures 17 to 20, respectively. Fig. 15 Fig. 16 1Ue I and 141d↑1(1)d +5t)
Figure 1.7 Figure 18 Figure 19 Figure 20

Claims (6)

[Claims] (1) Each outer link press and each inner link plate of two conveyor chains are connected freely to each other at both ends of a stay pin through which a plurality of rollers for loading objects to be transferred are freely inserted and supported. A chain conveyor in which the top surface of the chain is a flat surface that is substantially the same height as the outer circumferential surface of the rollers, reducing the front and rear contact pressure of conveyed objects. (2) The chain conveyor according to claim 1, wherein the opposing outer link plates of each conveyor chain are integrally formed in a U-shape with a flat upper surface and cover the inner link plates. (3) The opposing inner link plates of each conveyor chain are integrally formed with an upper connecting portion having a flat upper surface and a bridging portion having a semi-cylindrical lower half having a stay pin insertion hole. The chain conveyor described in item 1. (4) Each outer link plate and each inner link plate of the two-strand conveyor chain are connected freely to each other at both ends of a stay pin through which a plurality of rollers for loading objects to be transferred are freely inserted and supported, and are opposed to each other. A chain conveyor in which a stay pin is inserted into a hollow shaft with both ends fixed to an outer link plate, and the upper surface of each conveyor chain forms a flat surface that is substantially the same height as the outer circumferential surface of the rollers, reducing the front and rear contact pressure of transported objects. (5) The chain conveyor according to claim 4, wherein the opposing inner link plates of each conveyor chain are integrally formed in a U-shape with a flat upper surface, and both ends of a bush that fits externally on the hollow shaft are fixed to the side surface. (6) The opposing outer link plates of each conveyor chain are integrally formed with an upper joint portion having a flat upper surface and a bridging portion having a hollow shaft insertion hole and a semicircular lower half portion. Chain conveyor described in item 4.