JPH06191289A - Battery fixing device for article carrying vehicle - Google Patents

Abstract

PURPOSE:To prevent a battery from becoming rickety according to travel of an article carrying vehicle. CONSTITUTION:A battery 25 is pushed in a battery housing recess 5, and when a hook part 16a of an engaging piece 16 is made to be fitted in an opening 29, at the same time, a battery push-pressing piece 13 pushes back the battery 25 to the right side by force of a spring 14, so that the hook part 16a is engaged tightly with the end part of the opening 29.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery fixing device for an article transport vehicle such as an automated guided vehicle.

[0002]

2. Description of the Related Art Conventionally, the following types of battery fixing devices are known. That is, a battery storage recess having an inlet / outlet opening on the side surface is formed on the article transporting vehicle, a battery contact piece is fixed to the back of the battery storage recess, and the battery can be engaged / disengaged on the inlet / outlet side. It is known that the engagement piece is movably provided. With such a configuration, after storing the battery in the battery storage recess up to the position where it hits the battery contact piece, by engaging the engaging piece with the portion of the battery on the inlet / outlet side, It is designed to prevent the jumping out.

[0003]

Disadvantages of the Prior Art The conventional battery fixing device has the following drawbacks. That is, with the engagement piece engaged with the battery, the distance between the engagement piece and the battery is 2 m.
A gap of about m is formed. This is a result of consideration to ensure that the engaging piece engages with the battery even if there is a manufacturing error in the battery or the engaging piece. However, this has a drawback that the battery rattles as the article transport vehicle travels.

[0004]

[Means for Solving the Disadvantages] The present invention adopts the following means in order to eliminate the above disadvantages. According to the present invention, a battery storage recess having an inlet / outlet opening on a side surface is formed in an article transporting vehicle, and a battery pressing piece urged to project toward the inlet / outlet opening is movable in a deep portion of the battery storage recess. And an engaging piece that can be engaged with and disengaged from the battery is movably provided on the inlet / outlet side.

[0005]

The present invention has the following functions. It is possible to prevent the rattling of the battery by pressing the battery against the engaging piece side by the battery pressing piece and eliminating the gap formed between the engaging piece and the battery to absorb the manufacturing error.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the embodiments shown in the drawings. In this specification, the front means the right side of FIG. 1, the rear means the left side of the figure, and the left means the back side of FIG.
The right side means the same side.

As shown in FIG. 1, an articulated robot 3 is mounted on the upper part of a vehicle body 2 of an automated guided vehicle 1 which can travel forward, backward, leftward and rightward.

A battery accommodating recess 5 having an inlet / outlet opening 6 on the side surface is formed on the vehicle body 2. A door 7 is provided at the access port 6. As shown in FIGS. 2 to 4, at the bottom of the buttery storage recess 5, a large number of support rollers 9 with their axes oriented in the front-rear direction are rotatably provided, and the bottom of the buttery storage recess 5 is front and rear. A large number of side rollers 10 with their axes oriented in the up-down direction are rotatably provided in the section so that their axes are aligned in the left-right direction. Between the front side roller 10 and the rear side roller 10, front and rear guide walls 33 provided in a hanging shape on a front and rear portion of a bottom wall 27 of a battery 25 described later are fitted without rattling. There is.

As shown in FIGS. 2 and 5, the support block 1 is provided at the bottom of the battery housing recess 5 (on the left side).
2 are provided, two battery pressing pieces 13 are provided on the support block 12 so as to be slidable left and right, and these battery pressing pieces 13 are biased by a spring 14 toward the inlet / outlet 6 side. The battery pressing piece 1
Needless to say, 3 is provided with a retainer for preventing the battery pressing piece 13 from coming out of the support block 12 by the force of the spring 14.

An engagement piece 16 which is engageable with and disengageable from the battery 25 at the bottom of the buttery accommodating recess 5 on the side of the inlet / outlet 6.
However, it is provided so as to be swingable up and down by a pivot 17 having its axis centered in the front-rear direction. The engagement piece 16 is biased by a spring 18 in a direction in which the right hook portion 16a is located on the upper side. When the battery 25, which will be described later, is inserted into the buttery storage recess 5, the upper edge of the hook portion 16a tilts outward so that the hook portion 16a automatically lowers by hitting the bottom wall 27 by the pushing force. It is made as a cam surface. The rotary cam 21 is brought into contact with a left side portion of the engaging piece 16 with respect to the pivot 17,
The rotary cam 21 is fixed to the rotary shaft 20 of the motor 19 (see FIG. 2). With this configuration,
The cam mountain of the rotary cam 21 can swing the engaging piece 16 against the force of the spring 18 to lower the hook portion 16a. In addition, the valley of the rotary cam 21 is normally the engagement piece 1.
6 is opposed to the left side of the pivot 17.

As shown in FIGS. 2 and 4, a pair of electric terminals 23 are provided at the front and rear portions of the bottom of the buttery storage recess 5 at the left and right end portions of which the inclined portions are inclined downward toward the outside. ing.

As shown in FIGS. 2 to 5, the battery 25 housed in the buttery housing recess 5 includes a case 26,
It has a required number of battery bodies 31 that are detachably fixed to the case 26. Bottom wall 2 of the case 26
A guide wall 33 that fits between the front and rear side rollers 10 is formed in a front-rear portion of the front and rear portions of the guide roller 7. Is provided, and the rear guide wall 3 is provided.
Guide portions that are inclined toward the front side are provided at the left and right end portions of 3.

As shown in FIG. 5, a notch 28 for escaping the support block 12 and the battery pressing piece 13 is formed on the left side of the central thick portion of the bottom wall 27 in the front-rear direction. The battery pressing piece 13 contacts the surface. An opening 29 is formed at the center of the right side portion of the bottom wall 27, and the hook portion 16a is fitted into the opening 29. With this configuration,
Push the battery 25 into the buttery storage recess 5,
When the hook portion 16a of the engaging piece 16 is fitted in the opening 29, at the same time, the battery pressing piece 13 moves the spring 14
Force pushes the battery 25 back to the right side, so that the hook portion 16a engages with the edge portion of the opening 29 without a gap. Further, in this state, the guide wall 33 of the bottom wall 27 of the battery 25 is sandwiched by the front and rear side rollers 10, and the battery 25 does not rattle in the front and rear. An electric terminal 30 that abuts the electric terminal 23 when the battery 25 is completely housed in the battery storage recess 5 is provided on the lower surface of the bottom wall 27 so as to project downward (see FIG. 4).

In order to eliminate the door 7 provided at the loading / unloading port 6 and to improve the efficiency of automatic replacement by a robot or the like, a closing plate having a peripheral edge protruding from the case 26 is attached to and detached from the right opening of the case 26. Freely set up,
This closing plate holds the battery 25 in the battery storage recess 5
The storage port 6 may be closed so that the loading / unloading port 6 is closed. In short, the door 7 is not limited to the one shown in the drawings, and the door 7 may be provided on the vehicle body 2 side or the battery 25 side as long as the door 6 can be closed.

[0015]

The present invention has the following effects due to the above-mentioned configuration. It is possible to prevent the rattling of the battery by pressing the battery against the engaging piece side by the battery pressing piece and eliminating the gap formed between the engaging piece and the battery to absorb the manufacturing error.

[Brief description of drawings]

FIG. 1 is a simplified side view showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is an enlarged sectional view taken along line III-III of FIG.

4 is an enlarged sectional view taken along line IV-IV of FIG.

5 is an enlarged cross-sectional view taken along line VV of FIG.

[Explanation of symbols]

 1 Automated guided vehicle 5 Battery storage recess 6 Inlet / outlet port 13 Battery pressing piece 14 Spring 16 Engaging piece 16a Hook part 25 Battery

Claims (1)

[Claims] 1. An article transport vehicle is provided with a battery storage recess having a side opening / closing opening, and a battery pressing piece urged to project toward the loading / unloading opening moves to the back of the battery storage recess. A battery fixing device for an article transporting vehicle, in which an engaging piece that is freely provided and that is engageable with and disengageable from a battery is provided on the inlet / outlet side.