JPH0213366Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to improvements in elastic belts in vertical conveying devices.

A vertical conveyance device that clamps and conveys an article between an opposing belt and an elastic belt is disclosed in, for example, Japanese Patent Publication No. 47-7580 or Japanese Utility Model Publication No. 55-55.
This is well known as disclosed in Publication No. 96810 and the like. According to such conventional devices, when the article to be conveyed is large or the conveyance speed is extremely high, the elastic belt may not be able to stretch properly, causing damage to the belt itself or causing damage to the elastic belt. There are still problems that need to be improved, such as excessive force being applied to chains and other driving endless bodies that are connected to both sides of the chain and circulated together, which can damage the endless bodies. .

The elastic belt for the vertical conveyance device of this invention was proposed to solve the above-mentioned problems, and is used in a vertical conveyance device in which articles are held and conveyed between the opposing belt and the elastic belt. , the elastic belt is provided with fold-like slack between adjacent mounting pieces of a large number of mounting pieces that connect the elastic belt and the driving endless bodies at both ends thereof at intervals in the length direction; It is characterized by

This invention will be explained below with reference to embodiments shown in the drawings.

In Fig. 1 showing the outline of the vertical conveyance device, 1
2 is a facing belt, and 2 is an elastic belt having elasticity in the width direction. Opposing belt 1 and elastic belt 2
are circularly driven, for example, in the directions of arrows by a drive device (not shown), and convey the article W upwardly or downwardly by sandwiching the article W between adjacent portions of both belts 1 and 2.

As shown in FIGS. 2 to 4, the elastic belt 2
is driven by a chain with rollers 3a or other driving endless bodies 3, 3 running in fixed guide rails 4, 4 arranged on the outer side of the elastic belt 2. The edge portion and each endless drive body 3 are connected by a large number of attachment pieces 5 provided at intervals in the length direction, that is, in the running direction. That is, the outer end of each mounting piece 5 is pivotally connected to the connecting piece 3b protruding from the drive endless body 3 by a pin 6, and the inner end of each mounting piece 5 is attached to the elastic belt 2. The upper bolt 7 and the nut 7a overlap the side edges of the upper bolt 7 and the upper bolt 7a, or any fixing means such as rivets are used to secure the cover to the side edge of the cover. The structure in which the outer end side of the mounting piece 5 is pivotally attached to the driving endless body 3 is such that when a load, that is, an article W is sandwiched between the opposing belt 1 and the elastic belt 2, the end of the elastic belt 2 Since the elastic belt 2 can be tilted by a certain angle θ from its original position, it is effective to prevent damage to the elastic belt 2. It may also be simply fixed without being forced.

The above structure is conventionally well known, but in this invention, adjacent mounting pieces 5, 5 in a large number of mounting pieces 5 located at intervals in the length direction
In between, the elastic belt 2 has an outwardly convex fold-like slack 2a. In the illustrated example, the pleat-like slacks 2a are provided between the adjacent mounting pieces 5, 5, but it goes without saying that they may be provided at arbitrary intervals, such as every other.

In the figure, reference numeral 8 denotes flexible and thin reinforcing belts arranged endlessly in the longitudinal direction on both side edges of the elastic belt 2.
The elastic belt 2 is fixed to the elastic belt 2 by wrapping around each side edge of the elastic belt 2 and sewing, gluing, riveting, or the like.
This configuration is intended to strengthen the ends of the elastic belt 2, which tend to fray easily.

Further, reference numeral 9 denotes highly elastic reinforcing bands provided at intervals over the entire width of the elastic belt 2 (the surface opposite to the surface that clamps the article W). Each end of the reinforcing band 9 in the width direction is overlapped with each side edge of the elastic belt 2, and the bolt 7 is attached to the mounting piece 5. It is preferably detachably attached by any fixing means such as a nut 7a. This reinforcing band 9 is provided as necessary, and is provided when the weight of the article W to be handled is large.

The effects of this idea are as follows.

Since the elastic belt 2 has fold-like slacks 2a and is given sufficient room for expansion, it is possible to wrap a large article W therein.

When the elastic belt 2 holds the article W, the fold-like slack 2a provides sufficient room for expansion, so that excessive force acting on the elastic belt 2 itself can be released. Consequently, no excessive force is applied to the driving endless body 3. Therefore, the durability of the elastic belt 2 and the endless drive body 3 is improved.

Since the elastic belt 2 completely envelops the entire article, the conveyance can be ensured even when large and small articles are mixed together or when the conveyance speed is very high. It can be carried out.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an overview of the entire vertical conveyance device, FIG. 2 is a partial front view of the elastic belt of this invention, and FIG. 3 is a vertical cross-sectional end view taken along the line shown in FIG. 2.
FIG. 4 is an enlarged partial cross-sectional view along the lines of FIG. 2; 1...Opposing belt, 2...Elastic belt, 2a...
...Fold-like slack, 3... Endless body for driving, 5...
mounting piece.

Claims (1)

[Scope of utility model registration request] Vertical conveyance in which articles are pinched and conveyed by a non-stretchable endless opposing belt 1 that is arranged to run at a constant speed in the same direction and an endless elastic belt 2 that elastically expands and contracts in the width direction. In the apparatus, an elastic belt 2 is attached to an endless driving body 3 that supports and drives the elastic belt 2 by attachment pieces 5 attached at required intervals on both side edges, and each attachment piece 5 on both side edges are arranged oppositely in pairs in the width direction of the elastic belt 2, and between adjacent attachment pieces 5, 5 of a large number of attachment pieces 5 located at intervals in the running direction of the belt. A vertical conveyance device characterized in that a convex fold-like slack 2a is formed in the vertical conveyance device.