JP2006347665A - Positioning confirming device for battery case in battery type industrial vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a positioning confirming device for a battery case in a battery type industrial vehicle, capable of confirming positioning of the battery case in a predetermined position inside a battery storing chamber by seeing the positioning from a driver seat when remounting the battery case. <P>SOLUTION: This positioning confirming device for the battery case can remount the battery case having a bottom wall to which fork pockets are fixed from an entrance for remounting the battery case to the battery storing chamber. A slant plate oblique from the entrance bottom wall side for remounting the battery case to the central side of the battery case bottom wall is fixed and arranged between the fork pockets in parallel on the battery case bottom wall, and a sign piece abutting on the slant plate and tilted and rotated is rotatably arranged in the entrance side of a bottom wall frame member in the battery storing chamber so as to rise and fall down. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a battery case positioning confirmation device in a battery-powered industrial vehicle such as a forklift vehicle such as a forklift using a battery as a driving source or a towing vehicle such as a towing tractor, and more specifically, mounting of a battery case containing a large number of batteries. Battery case positioning confirmation device in a battery-type industrial vehicle of the type in which the forklift is moved up and down with a fork of a forklift different from the vehicle for which the battery case is to be replaced and forward and backward movement without using a lifting device such as a hoist or crane. About.

Conventionally, a battery case fixing device in a battery-type industrial vehicle described in FIG. 5 and Patent Document 1 is known.
The battery case fixing device for a battery-type industrial vehicle shown in FIG. 5 is provided with an inlet / outlet 52a for replacing the battery case in any one side frame member 52 of the side frame members 52 constituting the constituent members of the battery storage chamber 51, A fork mounted on a forklift different from the vehicle to be replaced with the battery case 53 is inserted into the fork pocket 54 of the box-shaped battery case 53 having a plurality of fork pockets 54 fixed to the bottom wall 53a. A battery case fixing device used for a type in which the battery case 53 can be transferred from the inlet / outlet 52a to the battery storage chamber 51 by a lifting / lowering operation and a forward / reverse operation by the bottom wall, and a bottom wall constituting a component of the battery storage chamber 51 A frame fixed on the entrance / exit 52a side of the frame member 55. Tsu movement of the battery case 53 in a stored state is adapted to be restrained by Pas member 56.

Further, the battery case fixing device in the battery-type industrial vehicle described in Patent Document 1 is a battery stopper device in which a stopper member for fixing the box-shaped battery case is horizontally rotatable, and when the battery case is replaced. In order to release the fork by inserting the fork into the fork pocket (fixed release space 5 in Patent Document 1), removing it by releasing it horizontally, the height of the stopper member is lowered, and the height of the battery case is increased. It is designed to keep it low.
JP 2002-348096 A (page 2-3, FIG. 1 to FIG. 6)

  However, in the battery case fixing device shown in FIG. 5, the stopper member 56 is formed of a plate member bent into an L shape, and is fixed to the bottom wall frame member 55 by welding or the like. . Therefore, when storing the battery case 53 in the battery storage chamber 51, the battery case 53 is pushed up until it comes into contact with the side frame member on the back side of the battery storage chamber 51 in a state where the battery case 53 is lifted high so as not to contact the stopper member 56. It is necessary to lower the battery case 53 after positioning while checking whether or not the side wall 53b and the bottom wall 53a located on the front side of the 53 are stored to a predetermined positioning position where they do not contact the stopper member 56. Further, when the battery case 53 is taken out, it is necessary to check whether or not the bottom wall 53a of the battery case 53 has risen to a position where it does not contact the top end of the stopper member 56.

  However, this positioning confirmation work is a confirmation work in a three-dimensional state where the side wall 53b and the bottom wall 53a of the battery case 53 moving up and down with respect to the fixed stopper member 56 position are separated from each other, and from the driver's seat. It is difficult to say that the positioning confirmation operation of the battery case 53 can be performed reliably and quickly, and in combination with the avoidance of breakage of the stopper member 56 due to contact with the side wall 53b or the bottom wall 53a of the battery case 53, There is a problem that it takes time.

Further, in the battery case fixing device shown in Patent Document 1, all the locking and unlocking of the battery case to the vehicle body by the stopper member is performed in the battery housing chamber, and the battery case is positioned at a predetermined position at the time of the engagement and release. The situation of whether or not the battery case is positioned cannot be confirmed at all by the driver who is replacing the battery case.
Therefore, it is not possible to confirm from the driver's seat whether the battery case is in a predetermined position in the battery compartment and is locked or not. In other words, there is a problem that the load is heavy to perform by only one worker, and it takes a long time for the replacement work.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to visually confirm from the driver's seat whether or not the battery case is positioned at a predetermined position in the battery storage chamber when the battery case is replaced. The object is to provide a positioning confirmation device for a battery case in a battery-type industrial vehicle.

  In order to achieve the above-mentioned object, the invention according to claim 1 is characterized in that an entrance for replacing the battery case is provided in any one of the left and right side frame members constituting the structural member of the battery storage chamber formed in the vehicle body. A battery case mounting confirmation apparatus for a battery-type industrial vehicle, wherein a box-shaped battery case having a plurality of fork pockets fixed in parallel on the bottom wall can be transferred from the doorway to the battery storage chamber. An inclined plate that inclines from the bottom wall of the inlet / outlet wall toward the center of the bottom wall of the battery case is fixedly disposed between the parallel fork pockets of the bottom wall of the battery case and tilted by contacting with the inclined plate. A rotating sign piece is arranged on the entrance / exit side of the bottom wall frame member in the battery storage chamber so that it can be turned upside down. Characterized in that it was.

According to the first aspect of the present invention, the battery case of the charged battery is loaded into the battery storage chamber from the battery case loading / unloading port by the fork of the forklift.
When the fork is moved downward and forward, so-called diagonally downward, the inclined plate between the parallel fork pockets on the bottom wall of the battery case comes into contact with the top end of the sign piece, and the sign piece is pressed to tilt toward the battery storage chamber. Move.
When the battery case continues to move obliquely downward and the entire battery case is placed in the so-called predetermined position where it is loaded all the way into the battery storage chamber, the pressure applied to the top end of the sign piece by the inclined plate is released. The sign piece is rotated back to the standing state at the entrance for changing the battery case.

  According to a second aspect of the present invention, in the battery case positioning confirmation device in the battery-powered industrial vehicle according to the first aspect, the inclined plate is closer to the center portion of the battery case bottom wall than the insertion port side end surface position of the fork pocket side wall. It is characterized in that it has a length to reach a position and is arranged in an inclined manner.

  According to the second aspect of the present invention, since the inclined plate has a certain length, even if the battery case is lowered obliquely until the battery case is placed in a predetermined position in the storage chamber, the inclined plate is marked. The piece is forcibly rotated in a tilting direction, and when the battery case reaches a predetermined storage position, the tilting restraint of the marker piece is automatically released, and the battery case can be confirmed by standing.

  According to a third aspect of the present invention, in the battery case positioning confirmation device in the battery-powered industrial vehicle according to the first or second aspect, the marker piece has a width narrower than a distance between the fork pockets, and a top end surface thereof. The marker piece is disposed at a lower height than the bottom wall surface of the battery case when the sign piece is in a standing state.

According to the third aspect of the present invention, the marker piece that has been tilted by being pressed by the inclined plate until the battery case is in a predetermined position in the battery storage chamber is positioned at the predetermined position in the battery storage chamber. When it is accommodated, it is released from the pressed state due to contact with the inclined plate, and the fork is returned to the standing direction with the fork inserted in the fork pocket, and stands at the entrance / exit for replacing the battery case.
A driver who has visually confirmed from the driver's seat that the sign piece has returned to the standing state and turned, and recognizes that the battery case has been positioned at a predetermined position in the battery compartment. After that, the fork is lowered, the battery case is placed on the bottom wall frame member in the battery storage chamber, and the fork is removed from the fork pocket to complete the battery case replacement operation.

  According to a fourth aspect of the present invention, in the battery case positioning confirmation device for the battery-powered industrial vehicle according to any one of the first to third aspects, the marker piece is connected to the battery case via an urging member. It is biased to stand at the entrance / exit for loading.

  According to the fourth aspect of the present invention, the marker piece that has been forcibly turned by the pressing force of the inclined plate during the replacement work of the battery case, that is, has been pressed in the inclined state, is stored in the battery housing chamber. At the time when the state is shifted to the predetermined storage position and the restraint by the inclined plate is released, the urging member automatically returns to the standing state, and the driver replaces the battery case with the sign piece while in the driver's seat. It can be confirmed that it is standing at the doorway.

  According to a fifth aspect of the present invention, in the battery case positioning confirmation device for the battery-powered industrial vehicle according to any one of the first to fourth aspects, the marker piece is in a standing state. It has a stopper piece comprising an upright portion parallel to the marker piece, and a horizontal portion which is bent from the height position where the upright portion faces the fork pocket and the tip extends in the horizontal direction so that the tip abuts the fork pocket. It is characterized by.

According to the fifth aspect of the present invention, when the battery case is positioned and accommodated at a predetermined position in the battery storage chamber, the horizontal portion operating end of the stopper piece can come into contact with the bottom wall or side wall of the fork pocket. At the same time, it is possible to control the stopper function at a low position where the height of the stopper piece is suppressed simultaneously with the confirmation of the positioning to the predetermined position by the marker piece.
Therefore, when the heavy battery case is replaced, the amount of vertical movement of the battery case can be reduced. As a result, the battery case can be replaced safely and easily without interfering with the battery case peripheral members at a low position. The

According to the present invention, since the inclined plate is provided on the bottom wall of the battery case, and when the battery case is replaced, the inclined piece is moved up and down by the inclined plate. Therefore, the battery case is moved to a predetermined position in the battery storage chamber. The marker piece is tilted by the inclined plate until it is positioned and settled, and damage due to the collision of the marker piece with the battery case is prevented.
In addition, when the battery case is positioned at a predetermined position in the battery storage chamber, the marker piece is released from the pressed state by the inclined plate and is rotated upright and returned to the entrance / exit for battery case replacement. Can be confirmed visually from the driver's seat, and the battery case can be easily replaced.

(First embodiment)
A battery case positioning confirmation device in a battery-powered industrial vehicle according to a first embodiment will be described below with reference to the drawings.
As shown in FIG. 1, a battery-type industrial vehicle of this embodiment, for example, a counterweight type battery forklift, has a mast device A on which the fork can be raised and lowered on the front side of the vehicle. A handling lever 9b for handling operation, a steering handle 9a for controlling a running operation B, etc., on the front side, an operation part B such as a steering handle 9a, and a balance weight C on the rear side, located between the operation part B and the balance weight C. The driver's seat D is arranged in the area.

In the substantially central part of the front and rear of the pair of left and right side frame members 2 constituting the main body of the vehicle body, that is, in the lower part of the driver's seat D, the side frame member 2 and the front and rear cross frame members 11 and 12, the bottom wall frame member 5 and the toe board 7, A battery storage chamber 1 having a substantially planar shape formed by the battery hood 8 is formed.
As is well known, one of the side frame members 2 constituting the left and right side walls of the battery storage chamber 1 has a length corresponding to the front and rear width of a battery case 3 to be described later. An entrance / exit 2a for replacing the cut-out battery case is formed.

The battery case 3 has a substantially rectangular box shape with an open upper surface to accommodate a large number of batteries. The battery case 3 is placed in the battery storage chamber 1 from the doorway 2a formed in the side frame member 2. It is possible to change.
Two fork pockets 4 which are long in the vehicle width direction are fixed to the front and rear positions of the bottom wall 3a constituting the battery case 3, and the fork pocket 4 has a height at which the fork can be inserted, It has a box shape consisting of width.

  The vertical height of the battery case remounting entrance / exit 2a is larger than the height from the bottom surface of the fork pocket 4 to the top end surface of the battery case 3, and a fork is inserted into the fork pocket 4 to describe the battery. When the case 3 is lifted and the bottom surface of the fork pocket 4 is raised higher than the lower edge that forms the lower part of the entrance / exit 2a, the top end face of the battery case 3 can be taken in and out without interfering with the upper edge that forms the upper part of the entrance / exit 2a. It is desirable to have a height. The upper edge on the upper side of the entrance / exit 2 a of the side frame member 2 is not necessarily required, and the upper end edge on the entrance / exit 2 a may be formed by cutting out the toe board 7 and the battery hood 8.

  When the battery case 3 is stored in the battery storage chamber 1, the ceiling portion side of the battery storage chamber 1 is covered with the toe board 7 and the battery hood 8, and the back surface of the toe board 7 and the battery hood 8 and the battery case are covered. 3, even when the bottom surface of the fork pocket 4 of the battery case 3 is lifted to a height that does not interfere with the lower edge of the entrance / exit 2 a when the battery case 3 is replaced, the top end surface of the battery case 3 is not in contact with the top end surface of the battery case 3. It is desirable that a space portion that does not contact is formed, but the space portion when the toe board 7 and the battery hood 8 are directly placed on the top end surface of the battery case 3 is the top end surface of the battery case 3 and the toe board. 7 and the battery hood 8. Further, the toe board 7 and the battery hood 8 may be escaped from the upper area of the battery case 3 before the work of replacing the battery case 3.

An end of the fork pocket 4 on the side of the inlet / outlet 2a for loading the battery case, that is, an end surface of the insertion port 4a, extends from an end surface on the side of the inlet / outlet 2a in the bottom wall 3a of the battery case 3, that is, from the side wall 3b of the battery case 3. It is in a position retreated toward the center of the vehicle.
Thus, when the battery case 3 is placed in the battery storage chamber 1, the bottom wall frame member 5 and the fork pocket are formed on the entrance / exit 2 a side portion of the bottom wall frame member 5 constituting the battery storage chamber 1. A space portion F that is long in the front-rear direction is formed by the four end surfaces and the front and rear cross frame members 11 and 12 and the bottom wall 3a of the battery case 3, and the space portion F of the bottom wall frame member 5 is It becomes a mark piece mounting space for installing a mark piece for positioning confirmation.

  An inclined plate 18 is fixedly installed between the parallel fork pockets 4 so as to connect a side wall, and one end of the inclined plate 18 is on the side of the inlet / outlet 2 a of the battery storage chamber 1 in the bottom wall frame member 5. The position is gradually inclined toward the center of the bottom wall 3a of the battery case 3 from a position substantially the same as the bottom wall surface on the side of the insertion port 4a on the end surface of the fork pocket 4 side wall.

  The marker piece installed in the marker piece mounting space portion F located on the inlet / outlet port 2a side of the battery storage chamber 1 in the bottom wall frame member 5 has a width narrower than the interval between the fork pockets 4 arranged in parallel and the marker. When the piece 6 is in an upright state, the lower end surface is close to the upper surface of the bottom wall frame member 5 of the battery storage chamber 1, the top end surface is lower than the lower surface of the bottom wall 3a of the battery case 3, and the inclined plate 18 and can be tilted and rotated toward the battery storage chamber 1 side.

  A pivot pin 13 is attached to a lower part of the back surface side of the marker piece 6 (the side facing the fork pocket 4), and the pivot pin 13 is installed at the entrance / exit 2a side portion of the bottom wall frame member 5. It is supported by the bearing member 14 and pivotally attached to the vehicle width direction, that is, the fork pocket 4 side so that it can be turned upside down.

Further, a biasing member 15 such as a coil spring is wound around the pivot pin 13, and one end of the biasing member 15 is locked to the bottom wall frame 5 and the other end is locked to the marker piece 6. .
The biasing member 15 causes the marker piece 6 to stand up in the space portion F on the entrance / exit 2a side of the battery storage chamber 1 at the same time as the tilting plate 18 releases the tilting rotation load toward the fork pocket 4 with respect to the marker piece 6. It is biased to rotate.

  The range of rotation of the marker piece 6 is approximately 90 degrees within the range from the standing position of the marker piece 6 to the lying position toward the fork pocket 4 with the pivot pin 13 as the center. Is done. However, the rotation in the direction away from the fork pocket 4 from the standing position of the sign piece 6 (counterclockwise in FIG. 3 and hereinafter referred to as counterclockwise) is performed when the sign piece 6 is in the standing position. Since the rotation fulcrum of the piece 6 is deviated to the fork pocket 4 side and the lower end surface of the marker piece 6 is close to the upper surface of the bottom wall frame member 5 of the battery storage chamber 1, The counterclockwise rotation of the lower end surface contacting the bottom wall frame member 5 and exceeding the standing state position is prevented.

  Even if the sign piece 6 extends its lower end to the lower surface of the bottom wall frame member 5 and the lower side surface portion of the sign piece 6 is brought into contact with the side end face of the bottom wall frame member 5, the sign piece 6 is similar to the above. The counterclockwise rotation can be restricted.

  A stopper piece 6b that is on both sides of the marker piece 6 and that can face the insertion port 4a of the fork pocket 4 and abut against the insertion port 4a is composed of an upright portion 61 and a horizontal portion 62. The portion 61 is integrally formed in parallel on both sides with the marker piece 6 interposed therebetween, and the horizontal portion 62 has a base end portion from a height position at which the fork pocket 4 in the upright portion 61 faces the fork pocket 4. The working end portion extends in the horizontal direction with a width and thickness that can be brought into contact with the bottom wall or side wall of the fork pocket 4 by bending toward the bottom.

  A pivot pin 13 common to the pivot pin 13 of the marker piece 6 is attached to a portion below the horizontal portion 62 on the back surface side (the side facing the fork pocket 4) of the stopper piece 6b. Is supported by a bearing member 14 installed at the entrance / exit 2a side portion of the bottom wall frame member 5 and pivotally attaches the stopper piece 6b to the vehicle width direction, that is, the fork pocket 4 side so as to be able to turn up and down. The pivot pin 13 does not necessarily have to be a common pin, and may be a pivot pin that is separate from the pivot pin 13 of the marker piece 6.

Further, a biasing member 15 such as a coil spring is wound around the pivot pin 13, and one end of the biasing member 15 is locked to the bottom wall frame 5 and the other end is locked to the stopper piece 6b. .
By this urging member 15, the stopper piece 6 b is released from the tilting and turning load of the marker piece 6 toward the fork pocket 4, and at the same time the tip of the stopper piece 6 b faces the insertion port 4 a of the fork pocket 4. It is urged to return to a contactable position.

The portion of the bottom wall frame 5 constituting the battery storage chamber 1 in the vicinity of the pivoting portion of the stopper piece 6b and on the rotation locus of the stopper piece 6b is based on the width of the horizontal portion 62 of the stopper piece 6b. A large escape hole 16 is perforated.
When the stopper piece 6b is pivoted up and down by the escape hole 16, the horizontal portion 62 has no obstruction member that hinders the tilt-up rotation, and is allowed to rotate through the bottom wall frame 5.

Next, the operation of the battery case positioning confirmation device according to this embodiment will be described.
A forklift fork separate from the battery case replacement target vehicle is arranged on the side of the machine base in order to replace the battery case in which the battery is in a discharged state or a state close thereto with a battery case having a charged battery. At this time, the toe board 7 and the battery hood 8 disposed above the battery case 3 may be rotated to open the upper part of the battery case 3 or may be in a closed state as they are.

Thereafter, the fork is moved up and down and advanced so that the tip of the fork comes to a position facing the fork pocket 4 of the battery case 3. The horizontal portion 62 of the stopper piece 6b serves as a guide and a guide for determining the position of the insertion port 4a of the fork pocket 4 that is difficult to see from the driver's seat hidden by the bottom wall 3a of the battery case 3 and the like. Plug in.
When the fork is further moved forward and the fork is inserted into the fork pocket 4 to a position where the battery case 3 can be lifted, the fork is raised to a position where the bottom wall of the fork pocket 4 does not contact the top end of the marker piece 6. Then, the vehicle is moved backward and the battery case in which the battery is in a discharged state or a state close thereto is removed from the machine base.

Next, the case where the battery case 3 having a charged battery is loaded into the battery storage chamber 1 will be described in detail. The charged battery case 3 lifted and supported by the fork is stored in the battery case of the vehicle to which the battery case is to be replaced by the forklift. The battery case 3 is carried into the battery storage chamber 1 by facing the chamber 1 and advancing the forklift and using the stopper piece 6b as a guide.
When about half of the entire battery case 3 is loaded into the battery storage chamber 1, the battery case 3 is lowered in an oblique direction by combining the forward movement of the forklift and the lowering operation of the fork.

The battery case 3 descends, and the start plate 18a located on the center side of the bottom wall of the battery case 3 on the inclined plate 18 located between the parallel fork pockets 4 of the battery case bottom wall 3a or the intermediate portion 18c side of the inclined piece 18 When it comes into contact with the top end surface, the sign piece 6 is tilted and rotated clockwise in FIG. 3 toward the bottom wall frame member 5 inside the machine base by the pressing force of the inclined plate 18.
This tilting rotation is continued until the battery case 3 descends in an oblique direction and the end portion 18b located on the fork pocket insertion port 4a side of the inclined plate 18 moves away from the top end surface of the sign piece 6 tilting horizontally. Then, by the escape rotation of the sign piece 6, the sign piece 6 does not become an obstacle to the loading direction of the battery case 3 into the battery storage chamber 1, and the battery case 3 is loaded into the battery storage chamber 1.

  At this time, the stopper piece 6 b is tilted and rotated in conjunction with the marker piece 6, and the tip of the horizontal portion 62 of the stopper piece 6 b passes through the escape hole 16 formed in the bottom wall frame 5, and the bottom wall frame member. 5 Projected and rotated downward from the bottom surface.

  When the battery case 3 continues to be loaded into the battery storage chamber 1 and the battery case 3 reaches a predetermined position in the battery storage chamber 1, the end portion 18b of the inclined plate 18 is tilted horizontally. At the same time as the pressing force applied to the marker piece 6 by the inclined plate 18 is released away from the top end surface of the marker piece 6, the marker piece 6 is raised and rotated by the biasing member 15 to the position of the side frame member 2 at the entrance / exit 2 a side. While returning in the standing state, the stopper piece 6b is similarly returned to a position facing the fork pocket insertion port 4a.

If it can be visually confirmed from the driver's seat that the sign piece 6 has been turned upright, the battery case 3 reaches a predetermined position in the battery storage chamber 1 in this situation, and the sign piece 6 and the battery case 3 The bottom wall 3a and the side wall 3b of the battery are recognized as being positioned so as not to interfere, and the fork is lowered to place the battery case 3 on the bottom wall frame member 5 of the battery storage chamber 1.
Thereafter, by removing the fork from the fork pocket 4, the work of replacing the battery case 3 is completed.

The battery case positioning confirmation device in the battery-powered industrial vehicle according to this embodiment has the following effects.
The sign piece 6 is placed between the bottom wall 3a of the battery case 3 and the bottom wall frame member 5 of the battery storage chamber 1 so that its height is equal to or less than the height of the fork pocket 4 fixed to the bottom of the battery case 3. In the space portion F formed by the above, the marker piece 6 is pivotally attached so as to be able to stand and tilt,
(1) When the battery case 3 is loaded, the inclined plate 18 formed between the fork pockets 4 of the battery case bottom wall 3a tilts and rotates the sign piece 6 toward the battery storage chamber 1, so that the sign piece 6 is not damaged. The loading operation can be continued.
(2) When the battery case 3 is loaded to a predetermined position in the battery storage chamber 1, the marker piece 6 is released from pressing in the tilt direction by the inclined plate 18 and automatically returns to the standing state. The standing of the sign piece 6 can be easily confirmed visually from the driver's seat. Therefore, it can be recognized at the same time that the tip of the stopper piece 6b is in contact with the fork pocket 4 by this confirmation, and the loading operation of the battery case 3 to a predetermined position in the battery storage chamber 1 can be easily performed.

(3) Further, as described above, when the battery case 3 is replaced, the loading operation can be performed without damaging the marker piece 6 and the positioning confirmation operation to a predetermined position in the battery storage chamber 1 can be easily performed. Thus, the battery case 3 can be easily replaced by one person.
(4) The inclined plate 18 formed between the fork pockets 4 not only simply raises or tilts the marker piece 6 but also serves as a strength increasing member for the fork pocket 4.

(5) Furthermore, the marker piece has an upright portion parallel to the marker piece when the marker piece is in a standing state, and the tip portion is bent from a height position facing the fork pocket so that the tip abuts the fork pocket. When the battery case is positioned and stored in a predetermined position in the battery storage chamber by forming a stopper piece composed of a horizontal portion extending in the horizontal direction as much as possible, the horizontal portion working end of the stopper piece is a fork. It is in a position where it can come into contact with the bottom wall or side wall of the pocket, and at the same time as confirming the positioning to a predetermined position by the marker piece, it is possible to control a stopper function at a low position where the height of the stopper piece is suppressed.

(6) The stopper piece 6b can be disposed at a position lower than the bottom wall 3a of the battery case 3, that is, a position facing the fork pocket 4, and a position where the movement restraint of the battery case 3 is low by contacting the fork pocket 4 is possible. And the stopper piece 6b does not hinder the insertion of the fork into the fork pocket 4 despite the fact that the stopper piece 6b faces the fork pocket 4; The height can be kept low, and the ease and safety of replacing the battery case 3 are further improved.

(7) The horizontal portion 62 of the stopper piece 6b serves as a guide and a guide for determining the position of the insertion port 4a of the fork pocket 4 which is difficult to see from the driver's seat hidden by the bottom wall 3a of the battery case 3 and the like. The fork can be easily inserted into the fork pocket 4 simply by moving up and down and moving forward along the position of the portion 62 and inserting along the horizontal portion 62.

The present invention is not limited to the first embodiment described above, and various modifications are possible within the scope of the gist of the invention. For example, the following modifications may be made.
The marker piece 6 and the stopper piece 6b do not necessarily have an integral shape, and the marker piece 6 and a pair of stopper pieces 6b disposed on both sides of the marker piece 6 are formed by independent members. Each of them may be pivotally attached to the battery storage chamber so as to be able to turn up and down. In this case, the pivot of each piece 6 and 6b may be a common pivot pin 13 or an individual pivot pin.
Accordingly, the marker piece 6 can be erected and tilted independently regardless of whether the fork is inserted into the fork pocket 4 or not, and is substantially equivalent to the marker piece 6 of the first embodiment described above. Has the effect of.

○ Although the sign piece 6 is shown in a vertical plate shape in the drawing, it does not necessarily have to be a vertical plate shape as a whole, and the tip side portion may be inclined.
○ For example, a lamp or other light emitting device is attached to the battery case 3 loading / unloading entrance / exit 2a as means for confirming the turning and turning of the sign piece 6, and the lamp and other switches are turned on using the turning and turning of the sign piece 6a. -It may be controlled so that it can be visually recognized even in a dark indoor work place or the like.

It is a schematic side view of the forklift equipped with the battery case positioning confirmation device according to the first embodiment. It is a principal part perspective view which fractures | ruptures and shows the principal part of the battery storage chamber which concerns on 1st Embodiment. It is a front view which fractures | ruptures and shows a part in the XX line of FIG. It is a top view which fractures | ruptures and shows a part in the YY line | wire of FIG. It is a principal part schematic perspective view which fractures | ruptures and shows the principal part of the battery storage chamber posted as a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Battery storage chamber 2 Side frame member 2a Entrance / exit 3 Battery case 3a Bottom wall 3b Side wall 4 Fork pocket 4a Insert port 5 Bottom wall frame member 6 Marking piece 6b Horizontal piece 61 Upright part 62 Horizontal part 7 Toe board 8 Battery food 11 Front cross frame Member 12 rear cross frame member 13 pivot pin 14 bearing member 15 biasing member 16 escape hole 18 inclined plate 18a start end portion 18b end portion 18c intermediate portion A mast device D driver's seat F space portion

Claims (5)

A battery case loading / unloading port is provided in one of the left and right side frame members constituting the battery housing chamber formed in the vehicle body, and a plurality of fork pockets are fixed in parallel on the bottom wall. In the battery case positioning confirmation device for a battery-type industrial vehicle that allows a battery case in a box shape to be transferred from the doorway to the battery storage chamber, from the door wall bottom side of the battery case to the center side of the battery case bottom wall An inclined plate that is inclined toward the side is fixedly disposed between the parallel fork pockets on the bottom wall of the battery case, and a marker piece that tilts and rotates in contact with the inclined plate is attached to the bottom wall frame in the battery storage chamber. In a battery-powered industrial vehicle, wherein the member is disposed on the entrance / exit side of the member so as to be rotatable up and down. Positioning verification device of the battery case. 2. The inclined plate has a length extending from an insertion port side end surface position on the side wall of the fork pocket to a position closer to a center portion of a battery case bottom wall, and is disposed in an inclined shape. For confirming the positioning of a battery case in a battery-powered industrial vehicle. The marker piece has a width narrower than a space between the fork pockets, and a top end surface of the marker piece is disposed at a lower position than the bottom wall surface of the battery case when the marker piece is in an upright state. The positioning confirmation device for a battery case in a battery-powered industrial vehicle according to claim 1 or 2. The battery type according to any one of claims 1 to 3, wherein the marker piece is urged to stand at an entrance / exit for replacing the battery case via an urging member. A battery case positioning confirmation device for an industrial vehicle. Wherein the label piece is an upright portion the label piece to be parallel with the label piece when in the standing state, the horizontal so as to abut against the uprights on the fork pockets and bent to tip the fork pockets from the height position facing The battery case positioning confirmation apparatus for a battery-powered industrial vehicle according to any one of claims 1 to 4, further comprising a stopper piece including a horizontal portion extending in a direction.

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