JPH06247145A - Cabin car - Google Patents

Abstract

PURPOSE:To provide a cabin car in which the riding in and out convenience is not reduced even though there is a fixed member at the position wider than the width of the cabin at the rear side of the cabin, and without extending the rotating radius of the vehicle when the door is opened, and furthermore, the striking of the door and the rear side of the cabin is prevented when the door is opened. CONSTITUTION:A cabin 4 is provided at the upper side of the car main body of a fork lift 1, and a counter weight 5 larger than the width of the cabin 4 is provided at the rear side of the cabin 4. At the entrance 4A of the cabin 4, a door 10 which consists of a front door 10A and the rear door 10B is provided, and the front door 10A and the rear door 10B are combined rotatable through hinges 12 and 11 respectively. Furthermore, at the side of the counter weight 5, a lock device to fix the front door 10A is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cabin vehicle such as a forklift.

[0002]

2. Description of the Related Art A conventional forklift truck will be described as an example with reference to FIGS. 5 and 6.

The forklift 50 comprises a mast mechanism 52 installed on the front side of the vehicle body 51, a cabin 53 installed on the upper side of the vehicle body 51 as an operating space, and a counterweight 54 located on the rear side of the cabin 53. Has been done. Doors 55 are provided on both side surfaces of the cabin 53, and the doors 55 are rotatably connected to the rear side of the cabin 53 via hinges 55a. As a result, it is possible for workers to get on and off.

By the way, the shape of the counterweight 54 provided on the forklift 50 cannot be extended to the rear of the vehicle in order to suppress the turning radius of the vehicle, and must be piled up in order to secure the rear view of the operator. I can't. For this reason, the width W54 of the counterweight 54 must be wider than the width W53 of the cabin 53.

As a result, when the door 55 is opened, the counter weight 54 located on the rear side interferes, and the door 55 cannot be fully opened, and the opening angle is limited. Further, when it is desired to perform work with good ventilation, there is a problem that when the door 55 is opened, the vehicle width of the forklift 50 is expanded by the opening degree of the door 55 and the vehicle turning radius is expanded.

As a method for solving this problem, a forklift 70 shown in FIGS. 7 and 8 has been proposed. Similar to the forklift 50, the forklift 70 is also provided with a cabin 72 above the vehicle body 71, and doors 73 are provided on both side surfaces of the cabin 72. However, the door 73 is rotatably connected via a hinge 73a not in the rear of the side surface of the cabin 72 but in the approximate center thereof.

As a result, even if the door 73 is fully opened, it does not interfere with the counterweight 74 existing on the rear side of the cabin 72. Moreover, by opening the door 73 so as to be bent backward on the side surface of the cabin 4,
Since the vehicle width of the forklift 70 is not increased, it is possible to perform work with good ventilation without increasing the vehicle turning radius.

Further, in Japanese Utility Model Laid-Open No. 63-141260, a door of a driver's cab of a full swing type working machine is divided into two doors, and one of the doors is connected to an entrance / exit of the operator's cab. By connecting one door to the other,
It has been proposed that the door opening pattern be of two sizes, large and small. In this fully swinging type working machine, when the worker gets on and off, both the one door portion and the other door portion are opened, so that the worker can get on and off easily. Further, when it is desired to perform work with good ventilation, if only the other door portion is opened so as to be bent with respect to the one door portion, it is possible to suppress the expansion of the vehicle turning radius without expanding the vehicle width. .

[0009]

However, in the case of the forklift 70 described above, the width dimension of the door 73 must be approximately half or less of the width dimension of the side surface of the cabin 72, so that the width dimension of the door 73 cannot be made large. However, there is a problem that the ease of getting on and off the worker deteriorates.

Further, in the full swing type working machine, once the other door portion is opened, the other door portion cannot be fixed. Therefore, when the other door section is opened to perform good ventilation, the door section and the rear side of the cabin collide with each other due to vibration and impact of vehicle traveling, cargo handling work, etc. There is a problem that it ends up.

Moreover, in a vehicle in which the rear side of the cabin is larger than the lateral width of the cabin, the divided door cannot be bent like the full swing working machine. Therefore, there remains the problem of increasing the vehicle turning radius.

The present invention has been made in order to solve the above problems, and its object is not to deteriorate the getting on / off property even if a fixing member is present at a position wider than the lateral width of the cabin on the rear side of the cabin. Provided is a cabin vehicle that does not expand the vehicle turning radius even when the door is open, and further prevents the door and the rear side of the cabin from colliding and being damaged when the door is open. Especially.

[0013]

In order to solve the above problems, the present invention is provided with a door on the side surface of the cabin for opening and closing an entrance and exit, and is fixed at a position rearward of the cabin and wider than the lateral width of the cabin. In a cabin vehicle provided with members, the door is divided into a front door and a rear door,
One side of the rear door is rotatably attached to the cabin, the other side of the rear door is rotatably connected to the front door, and the front door is movably connected to and held by the fixing member. The gist of the invention is to provide a holding device for doing so.

[0014]

Therefore, according to the present invention, by dividing the door into the front door and the rear door, the method of opening and closing the front door alone and the method of opening and closing the rear door together with the front door are selected. it can.

Furthermore, when opening both the front door and the rear door, the front door is opened while being rotated so as to be bent with respect to the rear door.
Since the front door can be opened so as to be along the fixing member on the rear side of the cabin, the width of the cabin vehicle is not increased.

Even when the front door is opened, the holding device is connected and held to the fixing member on the rear side of the cabin, so that the front door is reliably held even when the front door is left open.

Further, by providing the front door and the rear door with the fixing device, the front door and the rear door can be integrally opened and closed.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the cabin vehicle of the present invention is embodied as a forklift will be described below with reference to FIGS.

1 and 2 are a side view and a plan view of a forklift truck. The forklift 1 has a mast mechanism 2 for lifting and lowering cargo, which is arranged in front of the vehicle body 3.
The vehicle body 3 is provided with a cabin 4 as an operator's driving space.
It is placed above. Further, the forklift 1 is provided with a counterweight 5 on the rear side of the cabin 4 for properly maintaining the center of gravity of the vehicle. The counterweight 5 has a shape that is short in the front-rear direction and long in the left-right direction, and its height is kept low. This is to suppress the turning radius of the vehicle,
This is to secure the rear view of the worker. As a result, the width W5 of the counterweight 5 is equal to the width W4 of the cabin 4.
Is bigger than

The cabin 4 is provided with doors 10 on both sides thereof for opening and closing the entrance / exit 4A.
Is divided into a front door 10A and a rear door 10B. At that time, since the front door 10A is formed with a size that allows an operator to easily get in and out,
The size of the front door 10A is set larger than that of the rear door 10B. The rear door 10B is rotatably attached to the rear edge of the entrance / exit 4A via a hinge 11, and the front door 10A is attached to the front end of the rear door 10B.
Are rotatably connected via a hinge 12.

Further, when the front door 10A is opened together with the rear door 10B so as to have a shape like the left side portion of the cabin 4 of the forklift 1 shown in FIG.
The front door 10A can be opened and fixed by the lock device 20 as a holding device shown in FIG.

The lock device 20 includes a locking portion 21 fixed to a side portion of the counterweight 5 and a front door 1.
Space 2 recessed at a position that fits the locking portion 21 on the 0A side
4 and an elastic body 23 for elastically supporting the engaging portion 22. A cushion member 25 made of an elastic body is provided on the side of the counterweight 5. Therefore, the front door 10A
In order to fix, the front door 10A is pushed toward the counterweight 5. Then, the tip of the locking portion 21 expands the gap between the engaging portions 22 while forcibly compressing the elastic body 23 and fits in the space 24. As a result, the front door 10A can be fixed. In addition, at that time, even if the front door 10A is pushed too hard, the cushion material 2 is provided on the side surface of the counterweight 5.
By arranging 5, the members such as the front door 10A and the counterweight 5 are not likely to be damaged. On the contrary, when removing the front door 10A from the fixed state, the front door 10A may be pulled in the direction opposite to the direction of the counterweight 5. Then, since the engaging portion 22 applies a load so as to pull the tip of the locking portion 21,
The tip of the engaging portion 21 fixed to the counterweight 5 tries to be pulled out from the space between the engaging portions 22. As a result, the gap between the engaging portions 22 is forcibly widened through the contraction deformation of the elastic body 23, and the tip of the engaging portion 21 is pulled out from the interval between the engaging portions 22 and the engaging portion 21. The engagement with the engagement portion 22 is released. Therefore, the front door 10A is released from the fixed state.

Further, the front door 10A and the rear door 10B of the door 10 can be integrally opened and closed by a stopper 30 as a fixing device shown in FIG.
The stopper 30 has a rod 32 that slides back and forth (in the left-right direction in FIG. 4) inside the fixing bracket 31 installed on the rear door 10B, and is inserted into a hole 33a of the fixing bracket 33 installed on the front door 10A. 10A
And the rear door 10B are integrally fixed. Then, the pin 32a provided on the rod 32 is engaged with one of the two grooves 31a and 31b in the fixing fitting 31 to fix the position of the rod 32. That is, by sliding the rod 32 toward the front door 10A, the pin 3
By engaging 2a with the groove 31a, the front door 10A and the rear door 10B are integrally fixed, and on the contrary, the rod 32 is slid in the direction of the rear door 10B so that the pin 32a is inserted into the groove 31b.
The engagement between the front door 10A and the rear door 10B is released.

The operation of the forklift 1 of the present embodiment constructed as above will be described below. When the operator gets on and off the cabin 4 of the forklift 1, by opening and closing only the front door 10A via the hinge 12, it can be comfortably performed at sufficient intervals (operating state A). Furthermore, if the front door 10A and the rear door 10B are integrally fixed by the stopper 30, the front door 1
Since 0A can be opened and closed by the hinge 11 together with the rear door 10B, the operator can get in and out more comfortably, which is convenient for maintenance and inspection of the cabin 4.

Further, the forklift 1 with good ventilation.
When it is desired to use, the rear door 10B and the front door 10A are first opened via the hinge 11. Next, the front door 10A is rotated so as to be bent with respect to the rear door 10B, and further, the front door 10A is moved to a position where it can be fixed by the lock device 20 provided on the side portion of the counterweight 5. When the front door 10A has been moved to that position, the front door 10A is locked by the lock device 20.
It is fixed to the counter weight 5 of (operation state B).
That is, the front door 10A is fixed so as to be along the counterweight 5. Therefore, even if the counterweight 5 having a lateral width W5 larger than the lateral width W4 of the cabin 4 exists on the rear side of the cabin 4, the front door 10A can be fixed in an open state without expanding the vehicle width of the forklift 1. As a result, if the forklift 1 is desired to be well ventilated and the front door 10A is open, the turning radius of the vehicle is not increased.
Furthermore, since the front door 10A can be fixed to the counterweight 5 in an opened state, the front door 10A and the vehicle body 3 do not collide with each other, and the front door 10A and the counterweight 5 are damaged. Can be prevented.

In a forklift whose window or ceiling behind the cabin 4 (not shown) can be opened, when the front door 10A is fixed to the side of the counterweight 5 as in this embodiment, the rear door 10B and the entrance / exit are removed. If the opening angle that forms is set to an acute angle, the rear door 1
Since 0B serves as a guide plate for guiding the wind into the cabin 4 during traveling, there is an advantage that the ventilation is further improved.

The present invention is not limited to the above embodiments, but may be configured as follows, for example, without departing from the spirit of the invention. (1) In the above embodiments, the forklift 1 is described as an example of the cabin vehicle of the present invention, but the present invention is not limited to this. For example, the present invention can be applied to a shovel vehicle, a crane vehicle, and other industrial vehicles that have a counterweight wider than the lateral width of the cabin on the rear side of the cabin. The point is that the cabin vehicle may be one in which the fixing member is provided on the rear side of the cabin at a position wider than the lateral width of the cabin.

(2) In the above embodiment, the counterweight 5 is described as an example of the fixing member provided on the rear side of the cabin at a position wider than the lateral width of the cabin.
It is not limited to this. For example, this also applies to a case where a battery, a condenser for an air conditioner, etc. are provided at a position wider than the lateral width of the cabin on the rear side of the cabin.

(3) Although the doors 10 are attached to both side surfaces of the cabin 4 in the above embodiment, the door may be attached to only one of the left and right side surfaces of the cabin 4.

(4) In the above embodiment, the front door 10
Although the size of A is set to be larger than that of the rear door 10B, the size of the front door 10A may be the same as that of the rear door 10B, and the size of the rear door 10B may be larger. At this time, if the size of the front door 10A is small and it is difficult to get on and off the cabin 4 by opening and closing only the front door 10A, it is sufficient to open and close two of the front door 10A and the rear door 10B.

(5) In the above embodiment, the front door 10
Although the lock device 20 is set as the holding device for fixing A to the counterweight 5 in the open state, the present invention is not limited to this. For example, the front door 10A may be fixed to the vehicle body 3 or the counterweight 5 by utilizing the property of the magnet. Further, the lock device 20
The installation location of may be changed appropriately.

(6) In the above embodiment, the front door 10
Although the stopper 30 is set in order to integrally fix A and the rear door 10B so that the rear door 10B can be opened and closed, the stopper 30 need not be attached.

[0033]

As described above in detail, according to the present invention, the front door and the rear door can be opened without deteriorating the entry / exitability of the operator and without increasing the turning radius of the vehicle. Further, since the front door can be connected and held to the fixing member on the rear side of the cabin, it is possible to prevent the front door and the rear side of the cabin from colliding and being damaged by vibration of the vehicle.

Further, according to the present invention, by opening and closing the front door and the rear door integrally, it is possible to widen the interval for getting on and off the operator.

[Brief description of drawings]

FIG. 1 is a side view showing a forklift embodying the present invention.

FIG. 2 is a plan view showing a forklift embodying the present invention.

FIG. 3 is a partial sectional plan view of a lock device attached to a forklift embodying the present invention.

FIG. 4 is a front view showing a stopper attached to a door of a forklift truck embodying the present invention.

FIG. 5 is a side view showing a forklift truck as an example of a conventional cabin vehicle.

FIG. 6 is a plan view showing a forklift truck as an example of a conventional cabin vehicle.

FIG. 7 is a side view showing a forklift truck as another example of the conventional cabin vehicle.

FIG. 8 is a plan view showing a forklift truck as another example of the conventional cabin vehicle.

[Explanation of symbols]

1 ... Forklift as a cabin vehicle, 4 ... Cabin, 5 ... Counterweight as a fixing member, 10 ...
Door, 10A ... Front door, 10B ... Rear door, 20
... A locking device as a holding device.

Claims (2)

[Claims] 1. A cabin vehicle in which a door for opening and closing an entrance and exit is provided on a side surface of the cabin, and a fixing member is provided at a position rearward of the cabin and wider than a lateral width of the cabin. And a rear door, one side of the rear door is rotatably attached to the cabin, and the other side of the rear door is rotatably connected to the front door. A cabin vehicle provided with a holding device for detachably connecting and holding. 2. The cabin vehicle according to claim 1, wherein the door is provided with a fixing device for fixing the front door and the rear door in a non-rotatable manner.