JP2585230Y2 - Clamping device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp device for holding a package such as a boxed product.

[0002]

2. Description of the Related Art Clamping devices, in which a pair of holding plates are relatively moved by the rotation of a screw rod and a pair of holding plates hold a load from both sides, are widely used for conveying loads, changing directions, and the like. I have.

[0003]

By the way, in the conventional clamping device, a non-slip plate is adhered to the inner surface of the holding plate to increase the engagement force with the load.
If the box for storing the goods is made of a material having a relatively low coefficient of friction, such as a cardboard box, there is a risk that the load may drop during transportation.

[0004] In addition, when a load is stacked on a pallet, the load is conveyed onto the pallet, and the load is dropped by opening a pair of holding plates. Due to leaning, etc., the load may be engaged with one of the holding plates and the load may drop in an inclined state,
There is a problem that packages cannot be stacked in an aligned state.

It is an object of the present invention to solve the above-mentioned conventional problems and to provide a clamp device capable of safely transporting a load without dropping it and stacking the load in an aligned manner.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a clamping device for clamping a load by relatively moving a pair of clamping plates by rotating a screw rod. A plurality of strip-shaped elastic plates and a plurality of non-slip plates extending in the vertical direction are provided on the opposing inner surface in the width direction of the holding plate, and the upper portion of the elastic plate is fixed to the holding plate,
The elastic plate is inclined inward toward the lower portion, and a protrusion that can be engaged with the lower surface of the luggage is provided below the anti-slip plate, and the amount of protrusion of the protrusion is reduced by the protrusion of the lower inner surface of the elastic plate. That is, a configuration smaller than the amount was adopted.

Here, the elastic plate may be inclined by bending, or an elastic member may be provided on the lower back surface of the elastic plate, and the elastic member may press the lower portion of the elastic plate inward to be inclined. .

[0008]

In the clamping device having the above structure, a pair of holding plates are moved in a direction approaching each other to hold the load, and at the time of holding, each elastic plate is elastically deformed outward, and the anti-slip plate protrudes. The part is engaged with the lower surface of the load to prevent the load from falling.

When stacking the load, the pair of holding plates are moved in a direction in which the pair of holding plates are relatively separated from each other until the elastic plate slightly presses the side surface of the load, and the load is slid down along the inner surface of the elastic plate.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the support frame 1 has a pair of support plates 2 at both ends, and a pair of screw rods 3a and 3b are provided between the support plates 2 in parallel in the vertical direction. . Each of the screw rods 3a and 3b is rotated by a motor 4 supported by the support frame 1.

In the embodiment, the upper screw rod 3a and the lower screw rod 3b are rotated in the same direction by driving the motor 4. In this case, the screws of the upper screw rod 3a and the lower screw rod 3b are reversed. Screws. In the case where the upper screw rod 3a and the lower screw rod 3b are relatively rotated in reverse, the screws of the upper screw rod 3a and the lower screw rod 3b are set to the same direction.

A pair of upper guides 5a and a pair of lower guides 5b, both ends of which are supported by the support plate 2, are provided on both sides of the upper screw rod 3a and the lower screw rod 3b, respectively.
Are provided in parallel with each other.

An upper slide member 6a slidably provided along the upper guide 5a and a lower slide member 6b slidably provided along the lower guide 5b.
A nut 7a screw-engaged with the upper screw rod 3a and a nut 7b screw-engaged with the lower screw rod 3b are attached to the upper part.

For this reason, the upper screw rod 3a and the lower screw rod 3
By rotating b simultaneously, the upper slide member 6a and the lower slide member 6b move by the same amount in opposite directions.

A pair of side plates 8a extending in opposite directions are provided on both sides of the upper slide member 6a and the lower slide member 6b.
The distance between the side plates 8a of the upper slide member 6a is larger than the distance between the side plates 8b of the lower slide member 6b, so that the lower slide member 6b can pass between the side plates 8a of the upper slide member 6a. I have.

Stays 9a and 9b extend between the lower ends of the side plates 8a and 8b, and holding plates 10a and 10b are fixed to the stays 9a and 9b.

In the embodiment, in order to prevent deformation of the side plates 8a, 8b, a guide block 11 guided by the upper guide 5a and the lower guide 5b on the inner surface of each side plate 8a, 8b.
a and 11b are fixed.

FIGS. 3 and 4 show the holding plates 10a and 10b.
The details are shown below. Here, since the holding plates 10a and 10b have the same configuration, one holding plate 10b will be described below.
Regarding the other holding plate 10a, the same components as those of the one holding plate 10b are denoted by the same reference numerals, and description thereof will be omitted.

On the inner surface of the holding plate 10a, elastic plates 12 made of a plurality of strip-shaped metal plates extending long in the vertical direction and non-slip plates 13 made of rubber or synthetic resin are provided alternately in the width direction of the holding plate 10b. I have.

The elastic plate 12 has an upper portion fixed to the holding plate 10b and a lower portion separated from the holding plate 10b. Also,
The elastic plate 12 is pressed inward by an elastic member 14 provided on the lower back surface, and is inclined inward toward the lower portion. Note that the elastic member 14 may be omitted, and the elastic plate 12 may be bent so that the elastic plate 12 is inclined.

The non-slip plate 13 is fixed to the holding plate 10b via a means such as bonding, and the lower portion thereof is supported by a lateral rib 15 provided at the lower portion of the inner surface of the holding plate 10b and protrudes inward. Reference numeral 16 denotes a protrusion formed below the anti-slip plate 13, and the amount of protrusion of the protrusion 16 inward is determined by the elastic plate 1.
2 is smaller than the protrusion amount of the lower inner surface. Note that the lateral ribs 15 may be omitted, and the lower part of the anti-slip plate 13 may be made thick to serve as a projection.

The clamp device shown in the embodiment has the above-described structure, and when clamping a load, a pair of clamping plates 10a,
After the luggage is located between 10b, the upper screw rod 3a and the lower screw rod 3b are rotated by driving the motor 4, and the upper slide member 6a and the lower slide member 6b are moved along the upper guide 5a and the lower guide 5b. To move the pair of holding plates 10a and 10b toward each other.

In this case, as shown in FIG. 5B, the holding plates 10a and 10b are moved inward with the lower portions of the pair of holding plates 10a and 10b positioned below the lower surface of the load A. The load A is clamped from both sides by the clamping plates 10a and 10b. The elastic plate 12 is elastically deformed outward by the clamping, and the protrusion 16 of the anti-slip plate 13 is engaged with the lower surface of the load A.

As described above, the pair of holding plates 10a, 10a
When the baggage A is clamped by b, the protrusion 10 of the anti-slip plate 13 is engaged with the lower surface of the baggage A, so that the baggage A can be transported to the destination without dropping.

When stacking the luggage A transported to the destination, the pair of holding plates 10a and 10b are moved in a direction away from each other. In this case, a pair of holding plates 10a, 1
5b, the projecting portion 16 is disengaged from the lower surface of the load A and the lower portion of the inner surface of the elastic plate 12 is moved to a position where the lower portion of the elastic plate 12 lightly contacts the outer periphery of the load A as shown in FIG. Then, the load A slides and falls along the inner surface of the elastic plate 12.

As described above, by sliding the load A down along the inner surface of the elastic plate 12, the load A moves downward without inclining, and the load A is stacked in an aligned state where the outer peripheral surfaces are aligned. Can be.

In the case of the embodiment, two screw rods 3a, 3b
The clamp device for relatively moving the pair of holding plates 10a and 10b is shown in FIG.
The moving mechanism for relatively moving Ob is not limited to this.

For example, a pair of holding plates may be screw-engaged with a screw bar having a reverse thread, and the pair of holding plates may be moved symmetrically by rotation of the screw bar.

[0030]

As described above, in the clamp device according to the present invention, a protrusion is provided at the lower part of the non-slip plate fixed to the inner surfaces of the pair of holding plates, and when the load is held by the pair of holding plates. Since the projection is engaged with the lower surface of the load, the load can be safely transported without falling.

A plurality of elastic plates are provided on the inner surface of the holding plate and extend in the up-down direction and are inclined inward toward the lower part. When the pair of holding plates release the holding of the load, a plurality of the loads are released. Since the object is slid down along the inner surface of the elastic plate, the load falls without being inclined, and the load can be stacked in an aligned state.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing an embodiment of a clamp according to the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a partially cutaway perspective view showing the holding plate of the above.

FIG. 4 is a perspective view showing a part of the holding plate according to the first embodiment;

5 (a), 5 (b) and 5 (c) are cross-sectional views showing step by step the operation of holding and releasing the load.

[Explanation of symbols]

 3a, 3b Screw rod 10a, 10b Clamping plate 12 Elastic plate 13 Non-slip plate 16 Projection

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B66C 1/00-1/68 B25J 15/00-15/12

Claims (2)

(57) [Scope of request for utility model registration] 1. A clamping device for clamping a load by relatively moving a pair of clamping plates by rotation of a screw rod, wherein a plurality of strip-shaped elastic plates extending in the vertical direction and a plurality of sliding members are provided on inner surfaces of the clamping plates facing each other. The stopper plate is provided in the width direction of the holding plate, the upper portion of the elastic plate is fixed to the holding plate, and the elastic plate is inclined inward toward the lower portion. And a projecting portion which can be engaged with the elastic plate, and the projecting amount of the projecting portion is made smaller than the projecting amount of the lower inner surface of the elastic plate. 2. The clamp device according to claim 1, wherein an elastic member is provided on a lower back surface of the elastic plate to press the elastic plate inward to make it inclined.