JP2011255992A - Forklift - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the safety so that a battery stored in the battery storage of the car body may not be drawn out in running without fail.SOLUTION: A lock mechanism 19, which locks a battery releasably not to be drawn out of a battery storage, includes a lock member 40, which locks the battery in the storage, and a rotating lever 50, which raises and lowers the lock member 40 by rotation. Furthermore, a brake pedal 60, which operates the dead man brake of the car body, includes a projection 64, and the lock member 40 includes a cut (insertion part) 43. When a driver steps in the brake pedal 60 (when the vehicle runs) in the state that the battery is locked by the lock member 40, the projection 64 is inserted into the cut 43. At this time, even if a driver seeks to raise the lock member 40, the lock member 40 is locked by the projection 64. That is, in running, the rotation of the rotating lever 50 is blocked, thereby preventing the lock of the battery from being released.

Description

  The present invention relates to a forklift provided with a lock mechanism for locking a drawer of a battery housed in a vehicle body.

  Conventionally, a forklift equipped with a battery stores the battery in a battery storage portion formed on the vehicle body. The forklift is provided with a pull-out mechanism so that the battery can be pulled out from the battery storage unit when performing maintenance of the battery, for example, supplementing with distilled water. Further, the forklift includes a lock mechanism that releasably locks the battery in the battery storage unit.

  A conventional forklift equipped with a drawer mechanism and a lock mechanism is shown in FIGS. This forklift is a reach-type forklift described in Patent Document 1, and as shown in FIG. 11A, a battery storage portion 2 for storing a battery 3 is formed in the vehicle body 1 so that the battery 3 can move back and forth. 5 is stored in the battery storage unit 2 in a state of being mounted on the battery 5. The drawer mechanism 11 for pulling out the battery 3 from the battery storage unit 2 includes an engagement mechanism 21 provided on the lower side of the battery tray 2 and a carriage 10 for pulling out the battery tray 5 from the battery storage unit 2. .

  The carriage 10 can be moved back and forth by operating an operation lever 16 that operates a hydraulic circuit to operate a reach cylinder. Then, as shown in FIG. 11B, the operation lever 16 is operated, and the carriage 10 is moved backward to be positioned on the battery stand 5 to the lower surface (see the dotted line in FIG. 11B). Then, the swing lever 30 of the engagement mechanism 21 is rotated around the pivot shaft 32 so that the front end protrusion 33 moves downward. Then, when the operation lever 16 is operated again to advance the carriage 10, the front end protrusion 33 of the swing lever 30 and the engagement portion 18 of the carriage 10 are engaged. Along with this, the battery stand 5 on which the battery 3 is placed moves integrally with the carriage 10 in the forward direction and is drawn out from the battery storage unit 2. In this manner, the drawer mechanism 11 moves the carriage 10 back and forth by the operation lever 16 so that the battery 3 is pulled out from the battery storage unit 2 in the forward direction.

  A configuration of a conventional locking mechanism is shown in FIG. The lock mechanism 20 is for preventing the battery 3 from being pulled out from the battery storage unit 2 except when the battery 3 is pulled out by the pulling mechanism 11. The lock mechanism 20 is provided at the rear part of the battery storage unit 2 and includes a lock member 70 for locking the battery 3 to the battery storage unit 2 and a pedal lever 80 for raising and lowering the lock member 70 up and down. Prepare. The lock member 70 is disposed so as to be movable up and down along the partition wall 38, and the pedal lever 80 is connected to the lock member 70 via a connection member 72 and is supported rotatably on the partition wall 38 via a shaft member 81. Is done. Further, a tension spring member 82 is stretched on the pedal lever 80, and the lock member 70 can be raised by stepping on the pedal lever 80 against the urging force of the spring member 82.

  12A, the rear end protrusion 34 of the swing lever 30 is inserted into the lock hole 71 formed in the lock member 70, and the rear end protrusion 34 and the upper end edge 71a of the lock hole 71 are engaged. To do. At this time, even if the battery tray 3 tries to move forward, the rear end protrusion 34 engaged with the upper edge 71a of the lock hole 71 is locked by the lock member 70, so that the battery 3 is pulled out by the pull-out mechanism 11. I can't. In this way, the battery 3 is locked so that it cannot be pulled out from the battery housing 2.

  When the battery 3 is locked to the battery housing 2 (FIGS. 11B and 12A), when the pedal lever is rotated to raise the lock member 70, as shown in FIG. The engagement with the lock hole 71 is released. As a result, the rear end protrusion 34 is not locked to the lock member 70, so that the battery tray 5 can move in the forward direction. That is, the battery 3 is unlocked. After the battery 3 is unlocked in this way, the carriage 10 is operated by the operation lever 16 and the battery 3 is pulled out from the battery housing portion 2 together with the battery stand 5 as described above.

  Thus, in the forklift, after the lock of the battery 3 by the lock mechanism 20 is released, the drawer mechanism 11 is operated by the operation lever 16 to pull out the battery 3 from the battery storage unit 2.

  Further, this lock mechanism is configured such that when the pedal lever 80 is rotated from the state shown in FIG. 12A, the cam surface 82 formed on the pedal lever 80 contacts the cam follower 90 and presses the cam follower 90. ing. When the cam follower 90 is pressed by the cam surface 82, the detector 91 connected to the cam follower 90 is turned on. When the detector 91 is turned on, the control unit (not shown) of the forklift stops the operation of the hydraulic circuit so that the operation lever 16 cannot be operated. When the pedal lever 80 is rotated to the state shown in FIG. 12B, the recess 83 for engagement is engaged so as not to press the cam follower 90, so that the detector 91 is turned off again. The lever 16 can be operated.

  In this manner, in the conventional forklift, the detector 91 prevents the operation of the operation lever 16 and prevents the carriage 10 from moving except when the pedal lever 80 is in the state shown in FIG. 12A or 12B. . That is, when the lock member 70 is at a position in the middle of ascending / descending (position between FIGS. 12A and 12B), a malfunction that causes the drawer mechanism 11 to operate is electrically prevented by the detector 91. It was.

  However, this detector 91 controls the hydraulic circuit of the forklift, not the forklift traveling. Further, the conventional forklift has not been provided with a structure for mechanically locking the pedal lever 80. For this reason, the pedal lever 80 may rotate during the traveling of the forklift, which causes a situation in which the battery 3 is unlocked during the traveling.

  If the battery 3 is unlocked during traveling, the battery 3 may be pulled out of the battery storage unit 2 due to a sudden stop of the forklift or the like. Furthermore, when the vehicle 3 is traveling with the lock unlocked, if the operation lever 16 is accidentally operated and the drawer mechanism 11 is operated, the battery 3 is forcibly pulled out from the battery housing 2. There was also a risk of it.

  That is, since the conventional forklift has no structure for mechanically locking the pedal lever 80 of the lock mechanism 20, there is a risk that the battery 3 may be pulled out from the battery storage unit 2 while the forklift is running, which is lacking in safety. Met.

Japanese Patent No. 4052439

  Accordingly, an object of the present invention is to provide a highly safe forklift that can reliably prevent a battery stored in a battery storage portion of a vehicle body from being pulled out during traveling.

In order to solve the above problems, a forklift according to the present invention is provided on a vehicle body, and includes a storage unit that stores a battery, a drawer mechanism that pulls out the battery from the storage unit, and a lock mechanism that releasably locks the battery in the storage unit. And a brake pedal for operating the deadman brake of the vehicle body, and the lock mechanism unlocks the lock member for locking the battery, the lock position for locking the battery, and the lock of the battery. A forklift having a lever to be moved to a release position,
The brake pedal includes a protrusion, the lock member includes an insertion part for inserting the protrusion, and when the brake member is depressed when the lock member is in the lock position, the protrusion is inserted into the insertion part. The movement of the lever is restrained.

  Preferably, when the brake pedal is depressed while the lock member is in the release position, the projecting portion comes into contact with the lock member, and the depression of the brake pedal is stopped.

  Preferably, the insertion portion is a notch formed in the lock member.

  Preferably, the lever is a turning lever.

  In the forklift according to the present invention, in the lock mechanism having the lock member for locking the battery to the storage portion and the lever for moving the lock member as described above, the protrusion is provided on the brake pedal for operating the deadman brake. Furthermore, an insertion portion for inserting the protruding portion into the lock member is provided. Then, when the brake pedal is depressed when the lock member is in the lock position for locking the battery to the storage portion, the protrusion of the brake pedal is inserted into the insertion portion of the lock member.

  As a result, even if the lever is rotated when the brake pedal is depressed, the lock member is locked by the protruding portion inserted into the insertion portion, so that the lock member cannot move and the lever is prevented from rotating. It has become. That is, when the brake pedal is depressed, the pedal lever is mechanically locked, and the battery cannot be unlocked. Here, since the forklift brake according to the present invention is a deadman brake, the forklift can travel when the brake pedal is depressed.

  Therefore, the forklift according to the present invention has a configuration that can reliably prevent the battery from being pulled out of the battery storage portion without being unlocked during traveling (brake depressed state). Is expensive.

It is a side view of the forklift which concerns on this invention. It is a perspective view of a forklift according to the present invention. It is a figure which shows a mode that a battery is pulled out from a battery accommodating part by a drawer mechanism. It is a front view which shows the structure of a locking member. It is a perspective view which shows the locking mechanism of the forklift which concerns on this invention. It is a perspective view which shows the locking mechanism of the forklift which concerns on this invention. It is a figure which shows the locking mechanism of the forklift which concerns on this invention, FIG. 7A shows the state which has a locking member in a locking position, and FIG. 7B shows the state which has a locking member in a releasing position. It is a perspective view which shows the structure of a brake pedal. It is a figure which shows the lock mechanism of the forklift which concerns on this invention, FIG. 9A shows the state before depressing a brake pedal, and FIG. 9B is a figure which shows the state after depressing a brake pedal. It is a figure which shows the state by which depression of a brake pedal is stopped. It is a figure which shows the structure of the conventional forklift. FIG. 11A is a side view of the forklift as a whole, and FIG. 11B is a view showing a drawer mechanism. It is a figure which shows the lock mechanism of the conventional four lift.

  Hereinafter, embodiments of a forklift according to the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected about the thing of the same structure as what was demonstrated by the prior art.

  The forklift according to the present invention is a reach-type forklift as shown in FIGS. 1 and 2, and includes a vehicle body 1 having a drive tire DT, a caster tire CT, and a road wheel RH. The vehicle body 1 is formed with a battery housing portion 2 for housing the battery 3. And the battery 3 is accommodated in the battery accommodating part 2 in the state mounted in the battery tray 5 to which a wheel (not shown) is attached and can move back and forth.

  Furthermore, the forklift is provided with a pair of straddle legs 6R, 6L extending forward from both sides of the vehicle body 1, and a pair of outer masts 7R, 7L are erected between the straddle legs 6R, 6L. A pair of front and rear guide rollers 8 are provided on the legs 7a of the pair of outer masts 7R and 7L, and are formed on the inner side surfaces of the straddle legs 6R and 6L and extend in the front-rear direction of the vehicle body 1. Is inserted. Accordingly, the outer masts 7R and 7L can move back and forth.

  Further, the forklift includes a pair of forks 14R and 14L for loading and lifting the cargo in front of the vehicle body 1. The forks 14R and 14L are provided in front of the outer masts 7R and 7L via the lift bracket 12, and are lifted and lowered by the lift cylinder 13.

  Furthermore, the forklift is provided with a driver's cab 15 in which the operator gets on the rear of the vehicle body 1. The cab 15 is recessed behind the battery storage unit 2, and the cab 15 and the battery storage unit 2 are partitioned by a partition wall 38. Further, the forklift is provided with an operation lever 16 for operating the hydraulic circuit on the upper side of the vehicle body 1. By operating the operation lever 16, the lift cylinder 13, the reach cylinder, the tilt cylinder and the like can be operated.

  Further, the forklift is provided with a drawer mechanism 11 for pulling out the battery 3 stored in the battery storage unit 2. The drawer mechanism 11 includes a carriage 10 and an engagement mechanism 21. Note that the configurations of the carriage 10 and the engagement mechanism 21 are the same as the configuration of the forklift described in Patent Document 1, and therefore the detailed description of the configuration will be omitted as much as possible below.

  The carriage 10 is for pulling out the battery tray 5 from the battery storage unit 2 and for pushing the pulled-out battery tray 5 back to the battery storage unit 2. The carriage 10 is installed between the outer masts 7R and 7L, and can move back and forth as the outer masts 7R and 7L are moved back and forth. Thus, the operator can move the carriage 10 forward and backward by operating the operation lever 16 for the reach cylinder and moving the outer masts 7R and 7L back and forth.

  As shown in FIG. 3A, the engagement mechanism 21 is supported by a bearing plate 31 protruding from the lower surface of the battery tray 5, and is pivotally supported by a pivot shaft 32 extending in the left-right direction of the vehicle body 1. And a swing lever 30 that can swing around the pivot shaft 32. The swing lever 30 includes a front end protrusion 33 for engaging with the engagement portion 18 of the carriage 10 at the front end, and a rear end protrusion for engaging with a lock mechanism 19 described later at the rear end. 34 is provided. Further, the swing lever 30 is configured such that the front end protrusion 33 side is heavier than the rear end protrusion 34 side.

  Further, the forklift includes a lock mechanism 19 that locks the battery 3 in the battery storage unit 2 so as to be releasable. The lock mechanism 19 is used to prevent the battery 3 from being pulled out except when the drawer mechanism 11 is operated to pull out the battery 3 from the battery storage unit 2. The lock mechanism 19 includes a lock member 40 for locking the battery 3 and a rotation lever (pedal lever) 50 for raising and lowering the lock member 40.

  As shown in FIG. 4, the lock member 40 is formed in a flat plate shape. The lock member 40 is provided with two long holes 41 extending in the vertical direction so as to be attached to the partition wall 38. Further, the lock member 40 is provided with notches 42 and 43 on the left and right sides, and a recess 44 for connecting the rotation lever 50 on the upper side.

  As shown in FIG. 5 and FIG. 6, the lock member 40 has a partition wall within the length of the long hole 41 by inserting the support pin 36 into each long hole 41 of the lock member 40 and attaching it to the partition wall 38. 38 so that it can be moved up and down. Further, a partition plate 39 is erected vertically to the partition wall 38 in the cab 15, and the lock member 40 is locked to the left side of the partition plate 39 through a gap 39 a (FIG. 6) of the partition plate 39. It is provided such that the left side of the member 40 is positioned (FIG. 6) and the right side of the lock member 40 is positioned on the right side of the partition plate 39 (FIG. 5).

  Then, as shown in FIG. 6, the rear end protrusion 34 of the swing lever 30 of the engagement mechanism 21 is protruded from the opening 38 a of the partition wall 38, and the rear end protrusion 34 is the upper end of the left notch 42. Engage with the edge 42a. As a result, as shown in FIG. 3A, even if the battery tray 5 on which the battery 3 is placed is about to move forward (to the right side in FIG. 3A), the rear end protrusion 34 is locked to the lock member 40. The battery tray 5 cannot be moved from the battery storage unit 2. In this way, the battery 3 is locked to the battery storage unit 2.

  The rotation lever 50 is attached to the partition plate 39 via the shaft member 22, and is supported so as to be rotatable around the shaft member 22 (FIG. 5). Then, as shown in FIG. 7A, the coupling member 52 is attached to the attachment portion 50 a formed on the front end side of the rotation lever 50 and is fitted into the recess 44 formed in the lock member 40. The rotation lever 50 is connected to the lock member 40. Further, the tension spring member 53 is stretched with one end attached to the partition wall 38 and the other end attached to the rotation lever 50. Thus, the turning lever 50 is biased so that the footrest portion 50b side of the turning lever 50 does not fall due to its own weight.

  With this configuration, as shown in FIG. 7A, the upper end edge 42a of the left notch 42 and the rear end protrusion 34 are engaged, and the battery 3 is locked. Stepping on and turning the turning lever 50 around the shaft member 22 against the urging force of the spring member 53. Then, the lock member 40 connected to the rotation lever 50 via the connection member 52 rises along the partition wall 38 (see arrow). When the lock member 40 is raised in this way, the upper end edge 42a of the notch 42 of the lock member 40 is separated from the rear end protrusion 34 as shown in FIG. Canceled. As a result, the rear end protrusion 34 is not locked by the lock member 40, and the battery tray 5 can be pulled out from the battery storage 2. That is, the lock of the battery 3 in the battery storage unit 2 is released.

  When the depression of the turning lever 50 is released, the turning lever 50 is turned in the direction opposite to the stepping direction by the urging force of the spring member 53, and the lock member 40 is positioned even when it is lowered along the partition wall 38. Return to (FIG. 7A). As a result, the upper end edge 42 a of the notch 42 and the rear end protrusion 34 are engaged again, and the battery 3 is locked to the battery housing 2.

  As described above, in the lock mechanism 19, the rotation lever 50 is rotated to lock the lock member to the position where the battery 3 is locked to the battery housing 2 (hereinafter referred to as the lock position) (FIG. 7A) and the lock of the battery 3. Can be moved to a position where the battery 3 is released (hereinafter referred to as a release position) (FIG. 7B), and the battery 3 can be unlocked.

  The drawer of the battery 3 from the battery storage unit 2 by the drawer mechanism 11 and the lock mechanism 19 having the above configuration will be described.

  As shown in FIG. 3A, when the battery 3 is stored in the battery storage unit 2 and locked to the battery storage unit 2 by the lock mechanism 19, the operation lever 16 (FIGS. 1 and 2) for the reach cylinder is operated. Then, the carriage 10 is moved backward to be positioned on the lower surface of the battery tray 5 (see the dotted line in FIG. 3A).

  Subsequently, as shown in FIG. 3B, by rotating the rotation lever 50, the lock member 40 is moved from the locking position to the release position, and the rear end protrusion 34 and the upper end edge 42 a of the notch 42. And the battery 3 is unlocked. At this time, since the swing lever 30 is configured so that the front end protrusion 33 is heavier than the rear end protrusion 34 as described above, the engagement between the rear end protrusion 34 and the notch 42 is released. Then, the front end protrusion 33 is rotated by its own weight. At this time, the swing lever 30 is rotated until the rear portion thereof comes into contact with a stopper 35 projecting from the lower surface of the battery tray 3 and is held in a substantially horizontal state.

  Next, the carriage 10 is moved forward by operating the operation lever 16 for the reach cylinder. Then, as shown in FIG. 3C, the engaging portion 18 of the carriage 10 and the front end protrusion 33 of the swing lever 30 are engaged, and the battery tray 5 on which the battery 3 is placed is integrated with the carriage 10 in the front. Move in the direction. As a result, the rear end protrusion 34 of the swing lever 30 comes out of the notch 42 of the lock member 40, and the battery 3 is pulled out from the battery storage 2.

  After the battery 3 is pulled out from the battery storage unit 2, the operator can perform maintenance such as replenishing the battery 3 with distilled water.

  Then, after the maintenance is completed, the battery is stored in the battery storage unit 2 again. First, the turning lever 50 is stepped on and the lock member 40 is moved to the release position. Then, the operation lever 16 is operated to move the carriage 10 backward. As a result, the pushing member 27 (FIG. 3A) of the carriage 10 is pressed against a receiving member (not shown) protruding from the lower surface of the battery tray 5, and the battery tray 5 and the battery 3 are pushed into the battery housing 2.

  With this pushing, the rear end protrusion 34 of the swing lever 30 is inserted into the notch 42 of the lock member 40. When the depression of the turning lever 50 is released, the lock member 40 is lowered from the release position and moved to the lock position, whereby the upper end edge 42a of the notch 42 and the rear end protrusion 34 are engaged. Again, the battery 3 is locked in the battery housing 2.

  As described above, the forklift according to the present invention can pull out the battery 3 from the battery housing portion 2 by operating the drawer mechanism 11 after the lock mechanism 19 unlocks the battery 3.

  Further, as shown in FIG. 7B, in the lock mechanism 19, a cam surface 54 is formed on the rotating lever 50, and off recesses 55 a and 55 b are formed at both ends of the cam surface 54. A cam follower 56 is provided on the cam surface 54 and the recess so as to be able to contact 55a and 55b, and is connected to a detector 57 (limit switch). The detector 57 is turned on when the cam follower 56 is pressed. When the detector 57 is in the on state, the control unit (not shown) stops the operation of the hydraulic circuit, and the operation by the operation lever 16 becomes impossible. On the other hand, when the detector 57 is in the off state, the hydraulic circuit is put into an operating state, and the operation by the operation lever 16 becomes possible. The cam follower 56 and the detector 57 are supported by the partition wall 38 by the support member 23 (FIGS. 4 and 5).

  As shown in FIG. 7A, when the lock member 40 is in the locked position, the cam follower 56 is not pressed and is engaged with the OFF recess 55a, and the detector 57 is in the OFF state. That is, the hydraulic circuit can be operated by the operation lever 16. When the turning lever 50 is turned from the state shown in FIG. 7A, the cam surface 54 comes into contact with the cam follower 56 and presses the cam follower 56, whereby the detector 57 is turned on, and the operation lever No operation by 16 is possible. When the rotation lever 50 is completely rotated and the lock member 40 is moved to the release position as shown in FIG. 7B, the cam follower 56 is engaged with the OFF recess 55b, and the detector 57 is moved. The state is again turned off, and the operation by the operation lever 16 becomes possible.

  In other words, the hydraulic circuit can be operated by the operating lever 16 only when the lock member 40 is in either the locking position or the releasing position, and when the locking member 40 is between the locking position and the releasing position, the operation lever 16 can be operated. The carriage 10 cannot be moved back and forth. Thereby, when the lock of the battery 3 is being released, the battery 3 is forcibly pulled out by the pull-out mechanism 11 and the pull-out mechanism 11 and the lock mechanism 19 are prevented from being broken.

  Furthermore, the lock mechanism 19 of the present invention has a configuration that mechanically prevents the battery 3 from being pulled out of the battery storage unit 2 during traveling.

  The forklift includes a brake pedal 60 for operating the brake of the vehicle body 1 shown in FIG. The brake pedal 60 includes a rectangular stepping portion 61 for an operator to step on, and an attachment portion 62 provided on a side portion of the stepping portion 61 for attaching the brake pedal 60 to the partition plate 39. A shaft hole 63 extending in the horizontal direction is formed in the mounting portion 62, and a protruding portion 64 is formed so as to protrude forward of the stepping portion 61.

  Then, as shown in FIG. 5, the brake pedal 60 is pivotable about the axis of the shaft member 24 by inserting the shaft member 24 through the shaft hole 63 of the mounting portion 62 and mounting the brake pedal 60 on the partition plate 39. That is, it is supported by the partition plate 39 so that it can be stepped on. At this time, as shown in FIG. 9A, the notch 43 (insertion portion) on the right side of the lock member 40 is positioned in front of the protruding portion 64 of the brake pedal 60.

  The brake device of the vehicle body 1 operated by the brake pedal 60 is a deadman brake. The deadman brake is to release the brake and drive the forklift when the brake pedal 60 is depressed. On the other hand, when the brake pedal 60 is released without being depressed, the brake is operated and the forklift travel is stopped.

  With this configuration, as shown in FIG. 9A, when the operator depresses the brake pedal 60 (runs on the forklift) when the lock member 40 is in the locking position and the battery 3 is locked, as shown in FIG. As described above, the brake pedal 60 rotates, and the protrusion 64 is inserted into the cutout 43 on the right side of the lock member 40.

  When the protruding portion 64 is inserted into the notch 43 of the lock member 40 at the locking position, the notch 43 is moved even if the rotation lever 50 is rotated to move the lock member 40 from the locking position to the release position. The lower end edge 43 a of the abuts against the protrusion 64. Therefore, the lock member 40 is locked by the protruding portion 64 and cannot move to the release position, and the rotation of the rotation lever 50 is stopped.

  That is, when traveling on a forklift, the turning lever 50 is mechanically locked, the lock member 40 cannot be moved to the release position, and the lock of the battery 3 is not released. Therefore, it is possible to reliably prevent the battery 3 from being pulled out from the battery storage unit 2 during the forklift traveling.

  Further, as shown in FIG. 10, when the lock member 40 is in the release position and the lock of the battery 3 is released, the lock mechanism 19 is configured such that when the brake pedal 60 is depressed, The protrusion 64 is not inserted into the notch 43 but abuts against the lock member 40. As a result, the depression of the brake pedal 60 is stopped, and as a result, the brake of the vehicle body 1 cannot be released and the four lift cannot be performed.

  That is, the forklift cannot travel when the battery 3 is unlocked.

  As described above, the forklift locking mechanism 19 according to the present invention has a configuration in which the rotating lever 50 cannot be mechanically locked and the battery 3 cannot be unlocked during traveling (when the brake pedal is depressed). . Further, the lock mechanism 19 is configured such that when the battery 3 is unlocked, the brake pedal 60 is mechanically locked so that the forklift cannot travel.

  That is, the forklift according to the present invention prevents the battery 3 from being unlocked during traveling, and can reliably prevent the battery 3 from being pulled out from the battery housing portion 2 during traveling. It has become a high thing.

Body 1
Battery compartment 2
Battery 3
Battery tray 5
Carriage 10
Drawer mechanism 11
Cab 15
Operation lever 16
Lock mechanism 19
Swing lever 30
Rear end protrusion 34
Bulkhead 38
Lock member 40
Notch on the right side 42
Notch on left side (insertion part) 43
Rotating lever (pedal lever) 50
Spring member 53
Cam surface 54
Cam follower 56
Detector 57
Brake pedal 60
Protrusion 64

Claims (4)

A storage unit provided in the vehicle body for storing the battery;
A drawer mechanism for pulling out the battery from the storage unit;
A lock mechanism for releasably locking the battery in the storage unit;
A brake pedal for operating the deadman brake of the vehicle body,
The locking mechanism is
A locking member for locking the battery to the storage unit;
A forklift provided with a lever for moving the lock member to a lock position for locking the battery and a release position for unlocking the battery;
The brake pedal includes a protrusion,
The lock member includes an insertion portion for inserting the protruding portion,
When the lock member is in the locked position, when the brake pedal is depressed, the projecting portion is inserted into the insertion portion, and the movement of the lever is restrained.   2. The forklift according to claim 1, wherein when the brake pedal is depressed when the lock member is in the release position, the protrusion comes into contact with the lock member, and depression of the brake pedal is stopped.   The forklift according to claim 1, wherein the insertion portion is a notch formed in the lock member.   The forklift according to any one of claims 1 to 3, wherein the lever is a rotating lever.

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