JP2007119202A - Seat for forklift - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat allowing an operator to twist the upper part of his/her body easily when retracting and running by a forklift. <P>SOLUTION: This seat 20 of the forklift is composed of a seat part 21 of the seat and a seat back 22. A lower part 22a of the seat back 22 has rigidity, and an upper part 22b has flexibility. When the operator twists the upper part of his/her body to confirm a rear part visually and leans against the upper part 22b of the seat back 22, the operator can turn his/her face back easily because the upper part 22b is deformed in accordance with operator's movement. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a seat for a forklift, which has been devised so that it is possible to easily check the rear field of view when traveling backward.

FIG. 9 shows a general forklift 1. The forklift 1 includes a mast 4 and a fork 5 at the front of a vehicle body 3 having wheels 2, a seat 6 on the vehicle body 3, a steering handle 7, an operation lever, and the like. . Further, the roof 10 is supported by the front pillar 8 and the rear pillar 9.
In addition, 6a is a seat seat part and 6b is a seat back.

  When carrying out the cargo handling work with such a forklift 1, not only when traveling forward, but also traveling backward is frequently performed.

  When the forklift 1 travels backward, the driver seated on the seat seat 6a of the seat 6 holds the steering handle 7 with the left hand and hangs the right arm on the seat back 6b of the seat 6 (or the rear pillar with the right hand). While holding 9, the upper body is twisted to the right (that is, the upper body is twisted so that the right shoulder faces rearward), and the driver is driving while viewing the rear.

  Thus, when traveling backward, it is common for the driver to twist his upper body to the right. This is because the lever for operation is on the right side of the seat 6, and the lever for operating the operation lever 6 with the right hand while holding the steering handle 7 with the left hand is attached. In order to hold the handle 7 and turn backward in this state, the upper body is naturally twisted to the right.

In the current general forklift 1, the seat 6 is fixedly installed on the vehicle body 3, and the seat seat surface 6a and the seat back 6b are also fixed in a fixed state, so that the seat back 6b is not deformed. .
For this reason, even if the driver twists the upper body for visual recognition, the position of the seat 6 does not change, and the seat back 6b does not deform. As a result, maintaining a driving posture in which the upper body is twisted for rearward visual recognition is a tight posture for the driver, causing fatigue and increasing the work load.

  In order to solve such a problem, there is a forklift seat which has been devised as follows.

  In the first conventional example, a rotation mechanism is provided at the lower part of the seat portion so that the entire seat rotates. For this reason, when visually recognizing the rear, the entire seat on which the driver is seated is rotated (for example, rotated about 30 ° in a horizontal plane).

  In the second conventional example, the shape of the seat back of the seat is asymmetrical on the left and right, and the upper right side (that is, when the driver seated on the seat leans against the seat back, There is a cut part corresponding to the vicinity of the crust. If the upper part on the right side of the seat back is cut in this way, the driver can easily twist the upper body to the right side when viewing the rear.

JP2004196551 JP 2003-341399 A JP 7-156702 A JP 2005-80675 A

By the way, in the first conventional device described above, since the rotation mechanism is provided at the lower portion of the seat portion, the seat structure becomes large and complicated, and the cost is increased in the future.
Furthermore, since a large space for installing the rotation mechanism is required below the seat seat portion, it is practically difficult to install such a rotation mechanism in a forklift with no space.

  Further, in the above-described second conventional device, the shape of the seat back of the seat is asymmetrical on the left and right, so that when the driver sitting on the seat leans against the seat back while facing the front, The feeling that the seat back touches is different between the right side and the left side, and sometimes the user feels uncomfortable.

  An object of the present invention is to provide a seat for a forklift that facilitates a twisting operation when a driver twists the upper body for rearward visual recognition, in view of the above-described conventional technology.

The configuration of the present invention for solving the above problems is as follows.
In a seat having a seat seat and a seat back, which is provided on the body body of the forklift,
The lower part of the seat back that supports the waist of the driver seated on the seat seat surface has a rigidity that does not deform even if the driver leans, and is above the lower part of the seat back. The upper portion is characterized in that it has a flexibility that deforms when the driver leans against it and returns to its original shape when the driver stops leaning.
At this time, the lower part and the upper part of the seat back are integrally connected,
The lower portion and the upper portion of the seat back are connected to each other at a central portion in the left-right direction of the seat back, and the other portions are separated by a slit extending in the horizontal direction from the central portion toward the left and right.

The configuration of the present invention is as follows.
In a seat having a seat seat and a seat back, which is provided on the body body of the forklift,
The seat back is supported by a back column extending vertically upward from the rear portion of the seat seat portion,
The back column is flexible when the driver leans against the seat back and bends and turns, and when the driver stops leaning, the back column has flexibility.
At this time, the back column may be one or two.

The configuration of the present invention is as follows.
In a seat having a seat seat portion and a seat back provided on the body body of a forklift,
Of the seat seat portion, at least a part of a portion on which the driver's buttocks rest is a deformable moving portion that can rotate or slide in a horizontal plane.

The configuration of the present invention is as follows.
In a seat having a seat seat and a seat back, which is provided on the body body of the forklift,
A handle is attached to the back of the seat back.

The configuration of the present invention is as follows.
In a seat having a seat seat and a seat back, which is provided on the body body of the forklift,
The back of the seat back is provided with a hanging portion that can be put on the arm or hand of a driver who sits on the seat seat and twists the upper body.

According to the present invention, when the driver seated on the seat seat portion of the seat twists the upper body in order to visually recognize the rear when the forklift is traveling backward, the seat back is deformed in accordance with the movement of the operator. Or to move, the driver can easily turn the upper body and turn back.
Further, according to the present invention, a complicated structure such as a rotation function is not required, and the sheet can be made a simple structure.

  The best mode for carrying out the present invention will be described below in detail based on examples.

1A and 1B show a forklift seat 20 according to a first embodiment of the present invention. The seat 20 is provided on a vehicle body body of a forklift (not shown), and has a seat seat portion 21 and a seat back 22.
The seat back 22 includes a lower portion 22a that supports the waist of the driver seated on the seat seat portion 21, and an upper portion 22b that is above the lower portion. In the first embodiment, the lower portion 22a and the upper portion 22b are integrally connected.

  The lower part 22a of the seat back 22 has such a rigidity that it does not deform even if the driver leans. On the other hand, the upper portion 22b of the seat back 22 is flexible when the driver leans back and returns to its original shape when the driver stops leaning.

  For this reason, when the driver seated on the seat seat portion 21 of the seat 20 is not leaning against the seat back 22, the seat back 22 maintains its original shape as a seat back as shown in FIG. ing. Therefore, when traveling forward, the lower body 22a of the seat back 22 can reliably and stably support the driver's upper body, and even if the driver's upper body contacts the upper portion 22b of the seat back 22, the driver can hold the left and right without any sense of incongruity. can do.

  On the other hand, when the forklift travels backward, in order to drive while visually recognizing the rear, the driver seated on the seat seat portion 21 of the seat 20 twists the upper body to the right (that is, the right shoulder faces rearward). When the seat back 22 is leaned (twisting the upper body), the upper portion 22b of the seat back 22 is deformed as shown in FIG. That is, following the movement of the driver's body, the upper portion 22b is deformed so as to curve backward. Since the upper portion is curved and deformed following the movement of the body in this way, the driver can easily turn the upper body to the right by turning it to the right.

2A and 2B show a forklift seat 30 according to a second embodiment of the present invention. The seat 30 is provided on a vehicle body body of a forklift (not shown), and has a seat seat portion 31 and a seat back 32.
The seat back 32 includes a lower portion 32a that supports the waist of the driver seated on the seat seat portion 31, and an upper portion 32b that is above the lower portion.

  In the second embodiment, the lower portion 32a and the upper portion 32b are connected at the central portion in the left-right direction of the seat back 32, and are separated by slits 33R, 33L extending horizontally from the central portion to the left and right in the other portions.

  The lower part 32a of the seat back 32 has such a rigidity that it does not deform even if the driver leans. On the other hand, the upper part 32b of the seat back 32 is deformed when the driver leans against it and has a flexibility to return to its original shape when the driver stops leaning.

  For this reason, when the driver seated on the seat seat portion 31 of the seat 30 is not leaning against the seat back 32, the seat back 32 maintains its original shape as a seat back, as shown in FIG. ing. Accordingly, when traveling forward, the lower body 32a of the seat back 32 can reliably and stably support the upper body of the driver, and even if the upper body of the driver contacts the upper portion 32b of the seat back 32, the left and right sides are held without any sense of incongruity. can do.

  On the other hand, when the forklift travels backward, in order to drive while visually recognizing the rear, the driver seated on the seat portion 31 of the seat 30 twists the upper body to the right (that is, the right shoulder faces the rear). When leaning against the seat back 32 (twisting the upper body), the upper portion 32b of the seat back 32 is deformed as shown in FIG. That is, following the movement of the driver's body, the upper part 32b is deformed so as to curve backward. Since the upper portion is curved and deformed following the movement of the body in this way, the driver can easily turn the upper body to the right by turning it to the right.

FIG. 3 shows a forklift seat 40 according to a third embodiment of the present invention. The seat 40 is provided on a body body of a forklift (not shown), and includes a seat seat portion 41, a seat back 42, and one back column 43.
In the third embodiment, the seat back 42 has such rigidity that it does not deform even when the driver leans.

  The back column 43 extends vertically upward from the rear portion of the seat seat 41 and supports the seat back 42 on the back side thereof. In addition, the back column 43 has the flexibility to bend and turn when the driver leans against the seat back 42 and to return to the original linear shape when the driver stops leaning.

  For this reason, when the driver seated on the seat seat portion 41 of the seat 40 is not leaning against the seat back 42, the back column 43 has a linear shape. Therefore, as shown in FIG. The original position and posture are maintained. Therefore, when traveling forward, the upper body of the driver can be reliably and stably supported by the seat back 42, and even when the upper body of the driver contacts the seat back 42, the left and right sides can be held without discomfort.

  On the other hand, when the forklift travels backward, in order to drive while visually recognizing the rear, the driver seated on the seat seat 41 of the seat 40 twists the upper body to the right (that is, the right shoulder faces the rear). When the seat back 42 leans against the seat back 42 (while twisting the upper body), the shape of the seat back 42 is not deformed, but the back column 43 is bent and swiveled, and the position and posture of the seat back 42 are displaced and swiveled from the original position and posture. That is, following the movement of the driver's body, the seat back 42 is displaced / turned backward. Since the seat back 42 is displaced and swiveled following the movement of the body in this way, the driver can easily turn around by twisting the upper body to the right.

FIG. 4 shows a seat 50 of a forklift according to a fourth embodiment of the present invention. The seat 50 is provided on a body body of a forklift (not shown), and includes a seat seat portion 51, a seat back 52, and two back columns 53a and 53b.
In the third embodiment, the seat back 52 has such rigidity that it does not deform even when the driver leans.

  The two back columns 53a and 53b extend vertically upward from the rear portion of the seat seat portion 51 while maintaining a parallel state with a gap therebetween, and support the seat back 52 on the back side thereof. In addition, the back struts 53a and 53b have the flexibility to bend and turn when the driver leans against the seat back 52, and to return to the original linear shape when the driver stops leaning.

  For this reason, when the driver seated on the seat seat portion 51 of the seat 50 is not leaning against the seat back 52, the back columns 53a and 53b have a linear shape, and therefore, as shown in FIG. Maintains its original position and posture as a seat back. Therefore, when traveling forward, the upper body of the driver can be reliably and stably supported by the seat back 52, and even when the upper body of the driver contacts the seat back 52, the left and right sides can be held without discomfort.

  On the other hand, when the forklift travels backward, in order to drive while visually recognizing the rear, the driver sitting on the seat seat portion 51 of the seat 50 twists the upper body to the right (that is, the right shoulder faces the rear). If the seat back 52 leans against the seat back 52 (while twisting the upper body), the shape of the seat back 52 is not deformed, but the back columns 53a and 53b are curved and swiveled, and the position and posture of the seat back 52 are displaced and swiveled from the original position and posture. To do. That is, following the movement of the driver's body, the seat back 52 is displaced / turned backward. Since the seat back 52 is displaced and swiveled following the movement of the body in this way, the driver can easily turn around by twisting the upper body to the right.

  5 (a) and 5 (b) show a forklift seat 60 according to a fifth embodiment of the present invention. The seat 60 is provided on a vehicle body of a forklift (not shown), and has a seat seat portion 61 and a seat back 62.

  In the example of FIG. 5A, the portion of the seat seat portion 61 where the driver's buttocks rest is a disc-shaped deformation moving portion 63. The deformation moving portion 63 forms a part of the seat seat portion 61, but can rotate and move in a horizontal plane with respect to other portions of the seat seat portion 61.

  In the example of FIG. 5B, a part of the seat seat portion 61 on which the driver's buttocks rest is a crescent-plate-shaped deformation moving portion 64. The deformation moving portion 64 forms a part of the seat seat portion 61, but can slide and move in the horizontal plane with respect to other portions of the seat seat portion 61.

  For this reason, when the forklift travels backward, the driver sitting on the seat seat 61 of the seat 60 twists the upper body to the right in order to drive while visually checking the rear (that is, the right shoulder is directed backward). When the upper body is twisted to the right), the deformation moving parts 63 and 64 move following the right rotation of the driver's buttocks, so that the driver can easily turn the upper body to the right and turn back.

  6A, 6B, and 6C show a forklift seat 60A according to a sixth embodiment which is a modification of the fifth embodiment of the present invention.

  The deformation moving portion 65 shown in FIG. 6A is formed with a circular hole in the seat seat portion 61, and the upper surface of this hole (the surface corresponding to the seat surface of the seat seat portion) is rich in cushioning and deformability. The knitted fabric is stretched. As the knitted fabric, it is possible to adopt a fabric made of a three-dimensional solid knitted fabric (this is a structure in which polyester yarn is knitted three-dimensionally and has a structure like a small spring and damper assembly). it can.

The deformation moving portion 66 shown in FIG. 6B forms a crescent-shaped hole in the seat seat portion 61, and cushioning and deformability are provided on the upper surface of this hole (the surface corresponding to the seating surface of the seat seat portion). It is formed by stretching a rich knitted fabric. As the knitted fabric, it is possible to adopt a fabric made of a three-dimensional solid knitted fabric (this is a structure in which polyester yarn is knitted three-dimensionally and has a structure like a small spring and damper assembly). it can.

  The deformation moving portion 67 shown in FIG. 6 (c) is formed by stretching a knitted fabric rich in cushioning properties and deformability over the entire upper surface of the seat seat portion 61 (the surface corresponding to the seating surface of the seat seat portion). Yes. As the knitted fabric, it is possible to adopt a fabric made of a three-dimensional solid knitted fabric (this is a structure in which polyester yarn is knitted three-dimensionally and has a structure like a small spring and damper assembly). it can.

  Also in the present embodiment, as in the fifth embodiment, when the driver sitting on the seat seat portion 61 of the seat 60A twists the upper body to the right in order to drive while visually checking the rear when the forklift travels backward. (That is, when the upper body is twisted so that the right shoulder faces backward), the knitted fabric of the deformation moving parts 65, 66, 67 moves following the right rotation of the driver's buttocks, so the driver It can be turned to the right and easily turned back.

FIG. 7 shows a sheet 70 according to Embodiment 7 of the present invention. The seat 70 is provided on a vehicle body body of a forklift (not shown), and has a seat seat portion 71 and a seat back 72.
Further, a handle 73 is attached to the back surface of the seat back 72.

  In the present embodiment, when the forklift travels backward, the driver seated on the seat seat 71 of the seat 70 twists the upper body to the right in order to drive while visually checking the rear (that is, the right shoulder is By gripping the handle 73 with the right hand (when twisting the upper body so that it faces backward), it is possible to easily maintain the posture of turning backward, and the driver can easily turn the upper body by twisting the upper body to the right. it can.

FIG. 8 shows a sheet 80 according to an eighth embodiment of the present invention. The seat 80 is provided on a vehicle body of a forklift (not shown), and has a seat seat portion 81 and a seat back 82.
Furthermore, on the back surface of the seat back 82, a hanging portion 83 that allows the driver's arms and hands to be hung is attached.

  In the present embodiment, when the forklift travels backward, the driver seated on the seat seat 81 of the seat 80 twists the upper body to the right in order to drive while visually checking the rear (that is, the right shoulder is (When twisting the upper body so that it faces backward), the right arm and right hand can be hung on the hanging part 83 to easily maintain the posture of turning backward, and the driver can easily twist the upper body to the right and move backward. You can turn around.

1 is a perspective view showing a seat back according to a first embodiment of the present invention. It is a perspective view which shows the seat back which concerns on the 2nd Example of this invention. It is a perspective view which shows the seat back which concerns on the 3rd Example of this invention. It is a perspective view which shows the seat back which concerns on the 4th Example of this invention. It is a perspective view which shows the seat back which concerns on the 5th Example of this invention. It is a perspective view which shows the seat back which concerns on the 6th Example of this invention. It is a perspective view which shows the seat back which concerns on the 7th Example of this invention. It is a perspective view which shows the seat back which concerns on the 8th Example of this invention. The perspective view which shows a forklift.

Explanation of symbols

1 Forklift 3 Car body 20, 30, 40, 50, 60, 60A, 70, 80 Seat 21, 31, 41, 51, 61, 71, 81 Seat seat 22, 32, 42, 52, 62, 72, 82 Seat back 22a, 32a Lower part 22b, 32b Upper part 43, 53a, 53b Back column 63, 64, 65, 66, 67 Deformation moving part 73 Handle 83 Hanging part

Claims (8)

In a seat having a seat seat and a seat back, which is provided on the body body of the forklift,
The lower part of the seat back that supports the waist of the driver seated on the seat seat surface is rigid enough not to be deformed even if the driver leans on the upper side of the lower part of the seat back. A forklift seat characterized in that the upper part is flexible when the driver leans against it and deforms when it leans back and returns to its original shape. In claim 1,
A seat for a forklift, wherein a lower portion and an upper portion of the seat back are integrally connected. In claim 1,
The seat back of the forklift characterized in that the lower part and the upper part of the seat back are connected at the center part in the left-right direction of the seat back, and the other parts are separated by a slit extending horizontally from the center part to the left and right. . In a seat having a seat seat portion and a seat back provided on the body body of a forklift,
The seat back is supported by a back column extending vertically upward from the rear portion of the seat seat portion,
The forklift seat is characterized in that the back column has flexibility to bend and turn when the driver leans against the seat back and to return to the original linear shape when the driver stops leaning. In claim 4,
A forklift seat having one or two back struts. In a seat having a seat seat and a seat back, which is provided on the body body of the forklift,
A seat for a forklift, wherein at least a part of a portion of the seat seat portion on which a driver's buttocks rests is a deformable moving portion that can rotate or slide in a horizontal plane. In a seat having a seat seat and a seat back, which is provided on the body body of the forklift,
A forklift seat comprising a handle attached to the back of the seat back. In a seat having a seat seat and a seat back, which is provided on the body body of the forklift,
A seat for a forklift, provided with a hanging portion on the back surface of the seat back, on which a driver's arm or hand seated on the seat seat surface and twisted on the upper body can be hung.

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