JP6195774B2 - forklift - Google Patents

Description

  The present invention relates to a forklift provided with a cabin, a tilt cylinder and the like.

Conventionally, as this type of forklift, as shown in FIG. 8, a vehicle body 71 is provided with a cabin 72 having a driver's seat inside and a pair of left and right tilt cylinders 74 for swinging the mast frame 73. There is. An openable / closable door (not shown) is formed on one of the left and right sides of the cabin 72. As shown in FIGS. 9 and 10, a floor plate 76 is provided in the cabin 72, and a side end portion 76 a in the vehicle width direction A of the floor plate 76 is supported from below by a pair of left and right floor plate support plates 77. The floor plate support plate 77 is disposed opposite to the inner side in the vehicle width direction A than the side wall member 79 of the cabin 72.

  Cylinder mounting chambers 80 are provided at the front end portion in the cabin 72 and at both end portions in the vehicle width direction A. The cylinder mounting chamber 80 is a concave space that falls downward from the floor plate 76, and is formed between the side wall member 79 and the floor plate support plate 77. The cylinder mounting chamber 80 has a bottom surface 81 between the side wall member 79 and the floor plate support plate 77.

  As shown in FIGS. 8 to 11, a cylinder mounting opening 84 is formed in the front wall member 83 of the cabin 72. The front of the cylinder mounting chamber 80 communicates with a cylinder mounting opening 84. The front end portion of the floor plate support plate 77 reaches the lower edge of the cylinder mounting opening 84. As shown in FIG. 8, the tilt cylinder 74 is mounted in the cylinder mounting chamber 80 and protrudes forward from the inside of the cabin 72 through the cylinder mounting opening 84 to the outside. The tilt cylinder 74 and the cylinder mounting opening 84 are covered with a boot 86 made of thin rubber or the like.

  According to this, since the tilt cylinder 74 is mounted in the cylinder mounting chamber 80 in the cabin 72 and protrudes from the cylinder mounting opening 84 to the front outside of the cabin 72, the tilt cylinder 74 is mounted on the outer side of the cabin 72. Compared to the case, the width of the cabin 72 can be secured wide, and when the driver opens the door of the cabin 72 and enters and exits the cab, the tilt cylinder 74 can be prevented from getting in and out. .

  However, in the above conventional type, when the seal portion between the boot 86 and the peripheral edge portion of the cylinder mounting opening 84 deteriorates or when a hole is opened in the boot 86, the seal portion where the rainwater deteriorates, the hole of the boot 86, etc. There is a problem that it passes through the cylinder 72 and enters the cylinder mounting chamber 80 in the cabin 72. As a countermeasure against such a problem, the bottom surface 81 of the cylinder mounting chamber 80 is inclined downward from the front side and a drain hole 87 (see FIG. 8) is formed at the rear end of the bottom surface 81. Yes (see Patent Document 1 below).

  According to this, when rainwater enters the cylinder mounting chamber 80, the rainwater flows from the front to the rear on the inclined bottom surface 81 of the cylinder mounting chamber 80, and then drains from the cylinder mounting chamber 80 through the drain hole 87. Is done.

JP2013-116654A

  However, in the above conventional type, as shown in FIGS. 9 and 10, a part of the rainwater W that has entered the cabin 72 through the deteriorated seal portion or the hole of the boot 86 enters the cylinder mounting chamber 80. Without passing through the cylinder mounting opening 84 and through the inner side in the vehicle width direction A, and enters the inside from the upper side of the floor plate support plate 77 onto the side end portion 76a of the floor plate 76. There is a problem of reaching the feet of the driver on board.

  An object of the present invention is to provide a forklift capable of discharging water that has entered the cabin from the opening for mounting the cylinder to the outside of the cabin and preventing the water that has entered from reaching the feet of the driver. And

To achieve the above object, the first aspect of the present invention is a forklift provided with a cabin provided with a driver's seat inside and a tilt cylinder for swinging the mast frame,
Floor boards are provided in the cabin,
A cylinder mounting chamber is provided at the front end in the cabin and at the side end in the vehicle width direction,
The cylinder mounting chamber is a concave space that falls downward from the floor plate, and is formed between the side wall member of the cabin and the inner vertical plate member that is disposed to face the inner side of the side wall member in the vehicle width direction.
A cylinder mounting opening is formed in the front wall member of the cabin,
The front of the cylinder mounting chamber communicates with the cylinder mounting opening,
The front end of the inner vertical plate member reaches the edge of the cylinder mounting opening,
The tilt cylinder is mounted in the cylinder mounting chamber and protrudes forward from the inside of the cabin through the cylinder mounting opening.
A cylinder cover that covers the top of the cylinder mounting chamber is provided in the cabin.
The cylinder cover has a floor plate receiving portion at the inner end in the vehicle width direction,
The side edge in the vehicle width direction of the floor board is received and supported by the floor board receiving part from above,
The cylinder cover blocks between the upper end of the inner vertical plate member and the side end of the floor plate,
Between the floor plate receiving portion of the cylinder cover and the upper end portion of the inner vertical plate member, a water draining gap communicating with the lower side of the floor plate is formed.

  According to this, even if a part of rainwater passes through the cylinder mounting opening and passes through the upper end of the inner vertical plate member and enters the cabin, the upper end of the inner vertical plate member and the side end of the floor plate Since the gap is blocked by the cylinder cover, part of the rainwater does not flow from the upper end of the inner vertical plate member onto the side end of the floor plate, but from the upper end of the inner vertical plate member. It is discharged to the lower part of the floor board. As a result, the water that has entered the cabin from the cylinder mounting opening is discharged to the outside of the cabin, so that it is possible to prevent the entered water from reaching the driver's feet.

  In the cabin, since the tilt cylinder is covered with the cylinder cover, the driver's foot does not come into contact with the tilt cylinder, and the safety of the driver's foot is improved.

In the forklift according to the second aspect of the invention, the outer end portion of the cylinder cover in the vehicle width direction is attached to the side wall member of the cabin.
The inner end of the cylinder cover is supported by the upper end of the inner vertical plate member.

  According to this, when the driver gets into the cabin and puts his feet on the floor board, the load acting on the floor board is received from the side edge of the floor board by the inner vertical board member through the floor board receiving part of the cylinder cover. . Thereby, it can prevent that the cover for cylinders deform | transforms with the load which acts on a floor board, or is damaged.

In the forklift in the third invention, the cylinder mounting chamber has an inclined bottom surface between the side wall member and the inner vertical plate member,
The inclined bottom surface is inclined downward toward the rear rather than the front,
A drain hole for communicating from the cylinder mounting chamber to the lower side of the floor plate is formed behind the inclined bottom surface.

  According to this, even if rainwater passes through the cylinder mounting opening and enters the cylinder mounting chamber, the rainwater flows from the front to the rear on the inclined bottom surface of the cylinder mounting chamber, passes through the drain hole, and is below the floor plate. Is discharged. As a result, the water that has entered the cabin through the cylinder mounting opening can be discharged to the outside of the cabin, and the water that has entered the cylinder mounting chamber is prevented from flowing on the floor plate and reaching the driver's feet. Can do.

  In the forklift according to the fourth aspect of the present invention, the space between the tilt cylinder and the peripheral edge of the cylinder mounting opening is covered with a covering member.

  As described above, according to the present invention, the water that has entered the cabin through the cylinder mounting opening can be discharged to the outside of the cabin, and the water that has entered can be prevented from reaching the feet of the driver.

It is a side view of a forklift in an embodiment of the invention. FIG. 3 is a perspective view of a mounting portion of the cylinder cover as seen from the cabin of the forklift. FIG. 3 is a partially cutaway plan view of a mounting portion of a tilt cylinder of the forklift. It is the longitudinal cross-sectional view which looked at the attachment part of the tilt cylinder of the forklift from the outer side. It is a perspective view of the cylinder mounting chamber of a forklift. FIG. 3 is an XX arrow view in FIG. 2. It is a figure which shows the support structure of the floor board of the front part of a forklift, (a) is an enlarged perspective view of a floor board receiving part of a front part, the floor board receiving part of a cylinder cover, and an inner vertical board member, (b) is (a). FIG. It is the longitudinal cross-sectional view which looked at the attachment part of the tilt cylinder of the conventional forklift from the outer side. It is a perspective view of the cylinder mounting chamber of a forklift. It is a cross-sectional perspective view of the cylinder mounting chamber of the forklift. It is a perspective view of the formation location of the opening part for cylinder attachment of the front wall member of the cabin of a forklift.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, reference numeral 1 denotes a forklift. A mast frame 3 is provided at the front portion of the vehicle body 2 so as to be swingable in the front-rear direction. The mast frame 3 is provided with a fork 4 that can be raised and lowered. The vehicle body 2 is provided with a cabin 6 (driver's cab) having a driver's seat 5 inside, a pair of left and right tilt cylinders 7 for swinging the mast frame 3, and the like.

  As shown in FIGS. 2 and 3, a front floor board 9 (an example of a floor board) and a rear floor board 10 are provided in the cabin 6, and the front floor board 9 is inclined. An accelerator pedal (not shown), a brake pedal (not shown), and the like are provided on the front floor board 9. The cabin 6 is a square box-like structure, and includes a front wall member 14, a rear wall member 15, a pair of left and right side wall members 16, and a ceiling member 17. In addition, a door 18 that can be freely opened and closed is provided on one of the side wall members 16 of the cabin 6.

  As shown in FIGS. 3 to 5, a pair of left and right cylinder mounting chambers 19 are provided at the front end portion in the cabin 6 and at both end portions in the vehicle width direction A. Both cylinder mounting chambers 19 are concave spaces that drop downward from the front floor plate 9, and are located on both outer sides of the front floor plate 9. Further, the cylinder mounting chamber 19 is formed between the side wall member 16 of the cabin 6 and the inner vertical plate member 21 disposed to face the inner side of the side wall member 16 in the vehicle width direction A. The inner vertical plate member 21 is provided on a vehicle body frame (not shown). The cylinder mounting chamber 19 has an inclined bottom surface 22 between the side wall member 16 and the inner vertical plate member 21. The inclined bottom surface 22 is inclined downward toward the rear from the front, and a plurality of drain holes 23 are formed at the rear of the inclined bottom surface 22 so as to communicate from the inside of the cylinder mounting chamber 19 to the lower side of the front floor plate 9. ing.

  As shown in FIGS. 3, 4, and 6, a pair of left and right cylinder mounting openings 25 are formed at the lower end portion of the front wall member 14 of the cabin 6. The front of the cylinder mounting chamber 19 communicates with the cylinder mounting opening 25, and the front end of the inner vertical plate member 21 reaches the lower edge of the cylinder mounting opening 25.

  As shown in FIGS. 3 and 4, both the tilt cylinders 7 are respectively attached to the cylinder mounting chambers 19, and project from the inside of the cabin 6 to the front outside through the cylinder mounting openings 25. That is, a mounting bracket 7 a is provided at the rear end of the tilt cylinder 7, a pair of holding brackets 26 are provided at the rear end of the cylinder mounting chamber 19, and the mounting bracket 7 a and the holding bracket 26 are connected to the pins 27. Are connected by Thereby, the tilt cylinder 7 is provided so as to be swingable in the vertical direction around the pin 27. The front portion of the cylinder tube 7b of the tilt cylinder 7 and the peripheral portion of the cylinder mounting opening 25 are covered with a boot 29 (an example of a covering member) made of thin rubber or the like.

  As shown in FIGS. 2, 3, 4, and 6, a cylinder cover 32 that covers the upper side of the cylinder mounting chamber 19 is provided in the cabin 6. The cylinder cover 32 is a gate-shaped member, and a pair of vertical cover portions 32a and 32b facing each other in the vehicle width direction A and a horizontal cover portion provided between the upper end portions of both the vertical cover portions 32a and 32b. 32c and a floor plate receiving portion 32d.

  An outer vertical cover portion 32 a (an example of an outer end portion of the cylinder cover) in the vehicle width direction A of the cylinder cover 32 is attached to the inner surface of the side wall member 16 of the cabin 6. As shown in FIGS. 5 to 7, the floor plate receiving portion 32 d is provided horizontally at the lower end portion of the inner vertical cover portion 32 b (an example of the inner end portion of the cylinder cover) in the vehicle width direction A of the cylinder cover 32. It protrudes inward in the vehicle width direction A.

  Both end portions 9a of the front floor plate 9 in the vehicle width direction A are respectively received and supported by floor plate receiving portions 32d of a pair of left and right cylinder covers 32 from above. The side end 9a of the front floor plate 9 and the floor plate receiving portion 32d are connected by a fastener (not shown) such as a screw.

  Further, a step 37 is formed in the front floor plate 9, and the step 37 causes the side end portions 9a to be higher than the floor plate main body portion 9b between the side end portions 9a. In addition, the floor board main-body part 9b is set to the substantially same height as the upper end part of the inner side vertical board member 21. FIG.

  Further, the lower end portion of the vertical cover portion 32b inside the cylinder cover 32 protrudes from above between the upper end portion of the inner vertical plate member 21 and the side end portion 9a of the front floor plate 9, so The upper end portion of the plate member 21 and the side end portion 9a of the front floor plate 9 are blocked.

  Between the floor plate receiving portion 32 d of the cylinder cover 32 and the upper end portion of the inner vertical plate member 21, a water draining gap 34 that communicates below the front floor plate 9 is formed. In addition, L-shaped support pieces 35 are provided at a plurality of front and rear portions of the lower end portion of the vertical cover portion 32 b inside the cylinder cover 32. These support pieces 35 are arranged at a predetermined interval in the front-rear direction, and are supported by the upper end portion of the inner vertical plate member 21.

Hereinafter, the operation of the above configuration will be described.
When the driver opens the door 18 and gets into the cabin 6 and sits on the driver's seat 5 and puts both feet on the front floor board 9, as shown in FIG. 7, the load acting on the front floor board 9 is applied. Is received by the inner vertical plate member 21 from the side end portion 9 a of the front floor plate 9 through the floor plate receiving portion 32 d of the cylinder cover 32 and the support piece 35. Thereby, it can prevent that the cover 32 for both cylinders deform | transforms and is damaged by the load which acts on the floor board 9 of the front part.

  2 and 4, since the tilt cylinder 7 is covered with the cylinder cover 32 in the cabin 6, the driver's feet do not contact the tilt cylinder 7, and the driver's foot Safety for the foot is improved.

  Further, when the seal portion between the boot 29 and the peripheral edge portion of the cylinder mounting opening 25 is deteriorated or a hole is opened in the boot 29, the cylinder 29 can be mounted from the seal portion where the rainwater W has deteriorated or the hole of the boot 29. There is a possibility of passing through the opening 25 and entering the cylinder mounting chamber 19. When the rainwater W enters the cylinder mounting chamber 19 as described above, the rainwater W flows from the front to the rear on the inclined bottom surface 22 of the cylinder mounting chamber 19 and passes through the drain hole 23 as shown in FIG. , And discharged below the front floor board 9.

  Further, as shown in FIG. 7, a part of the rainwater W that has passed through the cylinder mounting opening 25 does not enter the cylinder mounting chamber 19, but enters the cabin 6 through the upper end of the inner vertical plate member 21. there's a possibility that. In this case, since the space between the upper end portion of the inner vertical plate member 21 and the side end portion 9a of the front floor plate 9 is blocked by the inner vertical cover portion 32b of the cylinder cover 32, part of the rainwater W is The inner vertical plate member 21 does not flow onto the side end portion 9a of the front floor plate 9 from the upper end portion of the front vertical plate member 21, and passes through the drainage gap 34 from the upper end portion of the inner vertical plate member 21. It is discharged downward.

  As a result, the water that has entered the cabin 6 from the cylinder mounting opening 25 is discharged to the outside of the cabin 6, so that the intruded water flows on the front floor plate 9 and reaches the driver's feet. Can be prevented.

DESCRIPTION OF SYMBOLS 1 Forklift 3 Mast frame 5 Driver's seat 6 Cabin 7 Tilt cylinder 9 Front floor board 9a Side edge part of front floor board 14 Front wall member 16 Side wall member 19 Cylinder mounting chamber 21 Inner vertical board member 22 Inclined bottom face 23 For draining water Hole 25 Cylinder mounting opening 29 Boot (covering member)
32 Cylinder cover 32a Outside vertical cover (outside edge)
32b Inner vertical cover (inner edge)
32d Floor plate receiving part 34 Drain gap A Car width direction

Claims (4)

A forklift equipped with a cabin with a driver's seat inside and a tilt cylinder for swinging the mast frame,
Floor boards are provided in the cabin,
A cylinder mounting chamber is provided at the front end in the cabin and at the side end in the vehicle width direction,
The cylinder mounting chamber is a concave space that falls downward from the floor plate, and is formed between the side wall member of the cabin and the inner vertical plate member that is disposed to face the inner side of the side wall member in the vehicle width direction.
A cylinder mounting opening is formed in the front wall member of the cabin,
The front of the cylinder mounting chamber communicates with the cylinder mounting opening,
The front end of the inner vertical plate member reaches the edge of the cylinder mounting opening,
The tilt cylinder is mounted in the cylinder mounting chamber and protrudes forward from the inside of the cabin through the cylinder mounting opening.
A cylinder cover that covers the top of the cylinder mounting chamber is provided in the cabin.
The cylinder cover has a floor plate receiving portion at the inner end in the vehicle width direction,
The side edge in the vehicle width direction of the floor board is received and supported by the floor board receiving part from above,
The cylinder cover blocks between the upper end of the inner vertical plate member and the side end of the floor plate,
A forklift characterized in that a drainage gap communicating with a lower portion of the floor plate is formed between the floor plate receiving portion of the cylinder cover and the upper end portion of the inner vertical plate member. The outer end in the vehicle width direction of the cylinder cover is attached to the side wall member of the cabin,
The forklift according to claim 1, wherein an inner end portion of the cylinder cover is supported by an upper end portion of the inner vertical plate member. The cylinder mounting chamber has an inclined bottom surface between the side wall member and the inner vertical plate member,
The inclined bottom surface is inclined downward toward the rear rather than the front,
The forklift according to claim 1 or 2, wherein a drain hole for communicating from the cylinder mounting chamber to the lower side of the floor plate is formed behind the inclined bottom surface. The forklift according to any one of claims 1 to 3, wherein a space between the tilt cylinder and the peripheral edge of the cylinder mounting opening is covered with a covering member.

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