EP2915771B1 - Frontschutzstruktur für gabelstapler - Google Patents

Frontschutzstruktur für gabelstapler Download PDF

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Publication number
EP2915771B1
EP2915771B1 EP12889009.2A EP12889009A EP2915771B1 EP 2915771 B1 EP2915771 B1 EP 2915771B1 EP 12889009 A EP12889009 A EP 12889009A EP 2915771 B1 EP2915771 B1 EP 2915771B1
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EP
European Patent Office
Prior art keywords
width direction
disposed
top board
pillars
vehicle width
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Application number
EP12889009.2A
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English (en)
French (fr)
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EP2915771A1 (de
EP2915771A4 (de
Inventor
Akihiro Ishigami
Tomoyuki Hayakawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Logisnext Co Ltd
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Mitsubishi Logisnext Co Ltd
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Publication of EP2915771A1 publication Critical patent/EP2915771A1/de
Publication of EP2915771A4 publication Critical patent/EP2915771A4/de
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Publication of EP2915771B1 publication Critical patent/EP2915771B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07545—Overhead guards

Definitions

  • the present invention relates to a head guard structure for a forklift.
  • a head guard is mounted to a forklift used to carry, load and unload various loads.
  • a head guard is a guard unit for protecting a driver from a fallen load when a load falls due to collapse of loads upon loading or unloading loads at a height.
  • the head guard includes a pair of right and left front pillars disposed at the front of a vehicle of a forklift at intervals in the vehicle width direction, a right and left rear pillars disposed at the rear of the vehicle at intervals in the vehicle width direction, and a ceiling disposed over the front pillars and the rear pillars.
  • the head guard has high rigidity to protect the driver from fallen loads.
  • Patent Document 1 discloses a head guard structure.
  • a front cover is fixed by bolts to right and left pillars at the front of a head guard provided for a vehicle body.
  • This front cover is formed from transparent resin having strength and durability, such as polycarbonate.
  • a ceiling cover having the same configuration is provided to prevent a driver from getting wet when it rains.
  • Patent Document 2 discloses a cutout disposed on a roof cover of a head guard to load and unload a battery of a forklift.
  • the cutout has a U shape including an opening at a side of a center portion in the vehicle front-rear direction.
  • a roof board of the roof cover is formed from a metal plate such as an iron plate, a rigid resin plate including FRP, or the like.
  • Document JP S58 221775 describes a overhead guard for a forklift, wherein the front half overhead section is made of crosspieces. Consequently when lifting a mast to perform loading work at high position, the leading edge of fork and load can be confirmed through the gap between the crosspieces to cause no trouble for the work, while the falling material is blocked by a cover plate to protect the driver.
  • Document JP S58 221776 describes a head guard structure for a forklift for protecting a driver's head from hurting without sacrifice of the overhead view, by making round the lower end of a strength member of an overhead guard roof.
  • a plurality of rectangular rods are extending in the front and back directions of car and arranged with proper interval in the lateral direction between a front member and V-shaped member.
  • Patent Document 1 the front and the ceiling are covered by polycarbonate or the like.
  • Polycarbonate produces slight scars on its surface due to aging, which reflect light diffusely and considerably detract the visibility.
  • Patent Document 2 discloses a cutout for loading and unloading batteries of the vehicle disposed on a roof cover of a head guard. The cutout is closed by a lid.
  • the structure becomes complex, and the cost rises due to the increased cost and production workload for the reinforcement members.
  • the roof board of the roof cover is formed from a metal plate such as an iron plate and FRP, the roof board is opaque, and the upward view may not be ensured.
  • An object is to provide a head guard structure for a forklift that prevents a driver from getting wet directly from rain, whereby it is possible to directly check tips of forks when the forks carrying a load reach the top position.
  • the present invention according to the independent claim 1 is provided.
  • the strength and rigidity of the ceiling is high, and it is possible to protect the driver from rainwater when it rains. Also, it is possible to maintain the front upward view during operation of the forklift.
  • a position of the front flange surface in the vehicle front-rear direction is disposed at least behind a line connecting tips of forks for placing loads and an eye point of a driver through the intervals between the bar members when the tips of the forks reach a top position and the driver is seated at a rightly seated position.
  • a rear edge of the top board may include a rear flange surface bended downward, the rear flange surface including opposite ends in the vehicle width direction respectively fixed to the pair of right and left rear pillars.
  • the rear flange surface has a similar effect (an effect to improve rigidity in the vehicle width direction) to that of the front lateral frame, it is possible to reduce the cost.
  • the top board may include a plurality of elongated grooves formed to have heights varied in a vertical direction over an entire region of the top board in the vehicle width direction.
  • the top board includes a reinforcement member extending in the vehicle width direction, disposed on a side of the top board which is adjacent to a driver's seat and at a position facing the driver's seat.
  • the reinforcement member is just disposed on the side of the top board adjacent to the driver's seat, which makes it possible to easily improve the rigidity against fallen objects from above the top board.
  • the bar members may each have a rectangular cross section in an orthogonal direction to an axis of each bar member, each bar member being disposed so that long sides of the cross section extend in the vertical direction.
  • the intervals between the bar members are large as compared to a case in which the long sides of the rectangular cross sections are disposed in the horizontal direction.
  • the upward view is enlarged.
  • the rigidity in the vertical direction improves and thus the safety improves.
  • a head guard structure whereby it is possible to directly check the tips of the forks on which a load is placed, and to prevent the driver from directly rained on when it rains.
  • FIG. 1 is a schematic side view of a forklift according to one embodiment of the present invention, and the reference sign 1 indicates an overall side view of a forklift.
  • a forklift 1 includes a vehicle body 21, a load lifting unit 7 mounted to a front part of the vehicle body 21, a head guard 5, front wheels 8, rear wheels 9 mounted to the rear of the vehicle body 21, a counterweight 3 mounted to the rear of the vehicle body 21, a steering wheel 6 for steering the rear wheels 9, and a seat 10 for seating a driver.
  • the head guard 5 is to prevent a load from falling onto a driver's seat due to collapse of loads lifted by the load lifting unit 7.
  • the front wheels 8 are driving wheels for moving the forklift 1.
  • the rear wheels 9 are steering wheels of the forklift 1.
  • the counterweight 3 has a weight such that the rear wheels 9 do not become spaced from the road surface due to the weight of loads on the load lifting unit 7, and such that the rear wheels 9 can contact the road surface firmly.
  • the vehicle body 21 includes the vehicle body 21 on which an engine, a device for driving the front wheels, a hydraulic pump such as a hydraulic cylinder, and a device for driving and work such as a steering device for the rear wheels (not illustrated) are mounted, and an engine cover 24 covering the top of these devices for traveling and work.
  • the vehicle body 21, to which the head guard 5 is mounted includes a pair of right and left side frames (not illustrated), and a plurality of cross members (not illustrated).
  • the side frames have a rectangular basic cross section in the vehicle width direction, and extend in the vehicle front-rear direction at an interval in the vehicle width direction.
  • the cross members connect the pair of right and left side frames in the vehicle width direction, and are arranged at an interval in the front-rear direction.
  • the devices for traveling and devices for work are accommodated between the pair of right and left side frames.
  • the engine cover 24 covers a space between the pair of right and left side frames.
  • a seat 10 for seating a driver is disposed on the upper surface of the engine cover 24.
  • the vehicle body 21 has high strength and high rigidity because the counterweight 3 or the like are connected to the vehicle body 21 via the cross members.
  • the load lifting unit 7 includes forks 72 having an L shape as seen from the side, on which loads are to be placed, a back rest 73 to which the forks 72 are attached, a mast 71 for supporting the back rest 73 slidably in the vertical direction, a lift chain (not illustrated) for sliding the back rest 73 in the vertical direction, an assist mast 75 that is fit slidably in the vertical direction to the mast 71 so as to lift the back rest 73 further above the upper end of the mast 71, and a tilt cylinder (hydraulic pressure) 76 for tilting the mast 71 and the assist mast 75 to adjust tips of the forks 72.
  • the tips of the forks 72 are tilted (adjusted) upward and downward to insert the forks 72 under a load, so that the load is placed on the forks 72.
  • the assist mast 75 is slid by a lift cylinder (hydraulic pressure) that is not illustrated, upward and downward with respect to the mast 71.
  • a lift cylinder hydraulic pressure
  • FIG. 2 is an exterior perspective view of the head guard 5.
  • the head guard 5 includes a pair of front pillars 51, 51 disposed at the front of the vehicle body 21 so as to be spaced from each other in the vehicle width direction, a pair of rear pillars 52, 52 disposed at the rear of the vehicle body 21 so as to be spaced from each other in the vehicle width direction, and a rectangular ceiling 53 welded to the upper ends of the four pillars on the four corners.
  • front and rear pillars are arranged in pairs, the same reference number is used for each pair to simplify the description.
  • the front pillars 51 each have a pillar shape with a cross-section in an orthogonal direction to the axis of the pillar forming a hollow closed cross section of a substantially rectangular shape.
  • the lower parts of the front pillars are attached to the front of the vehicle body 21 of the forklift 1 and above the front wheels 8.
  • FIG. 5A and 5B illustrate details of the attachment structure of the lower parts of the pillars 51.
  • An attachment structure of the pillars 51 adjacent to the vehicle body 21 includes a pair of right and left front-attachment brackets 21b standing on the upper surface of a front fender 21a of the vehicle body 21, a pair of right and left gussets 21c disposed on the inner sides of the front-attachment brackets 21b in the vehicle width direction so as to maintain the rigidity of the front-attachment brackets 21b in the vehicle width direction, and an instrument panel 28 (see FIG. 1 ) connecting the pair of right and left gussets 21c, for instance.
  • a steering wheel 6, a control lever for driving and lifting loads, driving meter devices and the like are mounted to the instrument panel 28.
  • An instrument reinforcement member for reinforcement is disposed inside the instrument panel 28.
  • the right and left front attachment brackets 21b each have a distal end inclined toward the inside of the vehicle body 21, so as to have an inclined surface of a trapezoidal shape as seen in the vehicle front-rear direction. This inclined surface guides insertion from above when mounting the front pillars 51 to the front attachment brackets 21b, and makes it possible to determine the positions of the center lines in the vehicle width direction of the vehicle body 21 and the head guard 5.
  • the lower end and the upper end of the head guard 5 respectively have a dimension WL and a dimension WU in the vehicle width direction, satisfying a relationship of WL > WU so as to conform to the inclined surface.
  • the front attachment brackets 21b each include the first attachment holes 21d penetrating through in the vehicle width direction.
  • a nut 22d constitutes a fastening member 22 fixed to a position corresponding to each of the first attachment holes 21d, on a side of the front attachment bracket 21b that is inside the vehicle.
  • the nuts 22d are welded to the front attachment bracket 21b.
  • FIG. 5B is a cross-sectional view taken along the line A-A from FIG. 5A .
  • two second attachment holes 51a are disposed in the vertical direction on a face facing the first attachment holes 21d.
  • the second attachment holes 51a are disposed so as to open on a surface contacting the front attachment bracket 21b of the rectangular cross section.
  • work holes 51b are disposed so as to open at the lower part of each front pillar 51, and on a face of the rectangular cross section that is opposite to the face on which the second attachment holes 51a are disposed.
  • the work holes 51b each have a diameter larger than that of the second attachment holes 51a.
  • Each work hole 51b has a diameter such that a bolt 22a, a spring washer 22b, and a plain washer 22c, all of which constitute a fastening member 22, can pass through the work hole 51b, and a box wrench (not illustrated) for fastening the bolt 22a can pass through the work hole 51b.
  • the front pillars 51 are fixed to the front attachment brackets 21b by assembling the spring washer 22b and the plain washer 22c onto the bolt 22a, all of which being a fastening member 22, and screwing the bolt 22a onto the nut 22d through the work hole 51b.
  • Each work hole 51b is closed by a resin plug 23 after fastening the first bolt 22a.
  • the rear pillars 52 each have a pillar shape with a cross-section in an orthogonal direction to the axis of the pillar forming a hollow closed cross section of a substantially rectangular shape, similarly to the front pillars 51.
  • FIGs. 6A and 6B illustrate an attachment structure of the lower parts of the rear pillars 52 to the vehicle body 21.
  • An attachment structure of the rear pillars 52 adjacent to a frame includes a pair of right and left first support brackets 26 disposed at the rear of the vehicle body 21 and along an outer side in the vehicle width direction of the upper surface of the frame, and a pair of right and left second support brackets 27 extending upward from the frame.
  • the first support brackets 26 each have a pillar shape with a substantially rectangular cross section as seen in a planar view.
  • Each attachment bracket 25 is disposed and fixed over the upper parts of the first support bracket 26 and the second support bracket 27.
  • the attachment part of at the lower part of each rear pillar 52 has high rigidity with respect to the vertical direction, the front-rear direction, and the right-left direction of the vehicle.
  • each rear attachment bracket 25 includes a flat portion 25a disposed over the upper parts of the first support bracket 26 and the second support bracket 27, a vertical wall portion 25c formed continuously from the flat portion 25a and bended downward, and a protrusion 25a to which the rear pillar 52 is attached.
  • the protrusion 25a is disposed so as to contact the front face of the rectangular closed cross section of one of the rear pillars 52.
  • the protrusion 25a includes the fourth attachment hole 25d penetrating through in the vehicle front-rear direction disposed at a position corresponding to the third attachment hole 52a of the rear pillar 52.
  • a nut 22d constituting a fastening member 22 is disposed in accordance with the axis of the fourth attachment hole 25d at a side opposite to the face contacting the rear pillar 52.
  • the protrusion 25a includes a guide portion 25e inclined toward the rear of the vehicle (or curved in an arc shape) at the distal end, so as to facilitate fitting when the rear pillar 52 is fit onto the protrusion 25a.
  • the ceiling 53 includes a pair of right and left vertical frames 55 each coupling the upper ends of one of the front pillars 51 and one of the rear pillars 52, a front lateral frame 54 coupling the pair of right and left front pillars 51, a top board 56a extending to the center part of the vertical frames 55 in the vehicle front-rear direction and including a front flange surface 56b bended downward, and a plurality of bar members 57 disposed in a space between the front flange surface 56b and the front lateral frame 54.
  • Each bar member 57 has the first end fixed to the front lateral frame 54, and the second end fixed to the front flange portion 56d.
  • the bar members 57 are arranged at intervals in the vehicle width direction.
  • the vertical frames 55 and the rear pillars 52 are coupled to be fixed (welded).
  • gusset 58 formed into a substantially L shape of a thick plate is welded to the joint between the vertical frame 55and each rear pillar 52.
  • the first arm 58a of the L shape is along the inner side of the upper end of the rear pillar 52, and the second arm 58b of the L shape is along the inner side of the rear end of the vertical frame 55.
  • first arm 58a and the second arm 58b of the L shape are each formed into a semi-circle shape.
  • the gusset 58 formed into a substantially L shape of a thick plate is welded to the vertical frame 55 and to the rear pillar 52 over the entire periphery of the gusset 58 formed into a substantially L shape of a thick plate continuously.
  • the ends of the gusset 58 is formed in a semi-circle shape, so as not to have a welding-termination part where welding is terminated at positions (the first arm 58a, and the second arm 58b) to which the highest stress is applied, when bending force is applied between the rear pillar 52 and the vertical frame 55 in the front-rear direction or the vehicle-width direction.
  • a welding-termination part At a welding-termination part, welding heat is released outward and weld penetration is likely to be insufficient. Also, a welding-termination part is cooled fast and a decrease in the welding speed is likely to be caused.
  • the gusset 58 does not have corners (a semi-circle shape), it is possible to prevent uneven distribution of welding strength possibly caused by a partial increase in the welding heat. Further, since the ends of the gusset 58 each have a semi-circle shape, the change in the cross-sectional rigidity is reduced, which makes it possible to prevent stress concentration.
  • the ceiling 53 includes the top board 56 and the plurality of bar members 57 disposed between the top board 56 and the front lateral frame 54.
  • the top board 56 includes a ceiling portion 56a formed in a flat shape that prevents a driver from getting wet from rain, the front flange surface 56b formed continuously from the ceiling portion 56a and bended downward at the front side in the vehicle front-rear direction, a rear flange surface 56c extending continuously from the ceiling portion 56a and bended downward at the rear side in the vehicle front-rear direction, a welding margin portion welded to the upper surfaces of the pair of right and left vertical frames 55, and a reinforcement member 56e disposed on a side of the ceiling portion 56a that is adjacent to the driver.
  • the reinforcement member 56e has a cross section in the front-rear direction that is formed to have a hollow closed cross section with the ceiling portion 56a. Also, the reinforcement member 56e extends across the entire region in the vehicle width direction.
  • the position of the front flange surface 56b in the vehicle front-rear direction is determined so that the driver can directly check the tips 72a of the forks 72 at the top position of the forks 72 of the forklift 1, when the driver is seated rightly on the seat 10.
  • the position FP of the front flange surface is disposed, in the vehicle front-rear direction, at least behind the position at which the lower edge 56bp of the front flange surface 56b intersects a connection line IL between an eye point IP of the driver and the tips 72a of the forks 72.
  • the position FP of the front flange surface varies depending on the height of the head guard 5.
  • seated rightly means that a driver of a standard size is seated on the seat 10 so that the forklift 1 can be easily operated.
  • the bar members 57 each have a solid closed cross section of a rectangular shape in an orthogonal direction to the axis of the bar member 57.
  • each bar member 57 The long sides of the rectangular shape of each bar member 57 are disposed in the vertical direction. Each bar member 57 is fixed (by welding) to the front lateral frame 54 at the first end, and to the front flange surface 56b at the second end.
  • the bar members 57 are fixed with the long (high) sides disposed in the vertical direction, which makes it possible to maintain high rigidity against fallen objects from above.
  • the bar members 57 are arranged at wide intervals, which results in an effect to expand the upward view.
  • the bar members 57 each have a rectangular cross-section of a thick plate shape. The same effect can be achieved even if each bar member 57 is a hollow member having a rectangular shape with its long sides arranged in the vertical direction.
  • the top board 56 includes flanges 56d at the ends in the vehicle width direction. Each flange 56d is placed on the upper surface of either one of the pair of right and left vertical frames 55.
  • Each flange 56d is fillet welded (W3) over the entire region in the vehicle front-rear direction on the upper surface of the corresponding one of the pair of right and left vertical frames 55.
  • an end in the vehicle width direction of the front flange surface 56b is fillet welded (W4) to the inner side of the corresponding vertical frame 55 in the vertical direction.
  • an end in the vehicle width direction of the rear flange surface 56c of the top board 56 is fillet welded (W5) to the inner side in the vehicle width direction of the corresponding gusset 58 connecting the vertical frame 55 and the rear pillar 52 in the vertical direction.
  • the top board 56 has a box shape that has an opening at the lower side, formed by the ceiling portion 56a, the front flange surface 56b, and the rear flange surface 56c of the top board, and the right and left vertical frames 55, 55.
  • the head guard 5 achieves high rigidity especially in the vertical direction.
  • the ceiling portion 56a has a flat plate shape in the present embodiment, the ceiling portion 56a may have a cross section in the vehicle front-rear direction whose height is varied in the vertical direction so as to have a corrugated shape (arc or triangular), or trapezoidal, so that a plurality of elongated grooves are arranged in the vehicle width direction.
  • a corrugated shape arc or triangular
  • trapezoidal so that a plurality of elongated grooves are arranged in the vehicle width direction.
  • top board 56 having a box shape with an opening at the lower side, it is possible to achieve high rigidity for the head guard 5, and to expand driver head clearance (clearance between the head of the driver and the top board 56) HC, which results in improvement of habitability and therefore enhancement of merchantability.
  • the front flange 56b of the top board 56 is disposed, in the vehicle front-rear direction, behind the connection line IL connecting the eye point IP of the driver and the tips 72a of the forks 72 at the top position of the forks 72.
  • the present invention can be provided as an attachment structure for attaching a head guard to a vehicle body of a forklift.

Claims (6)

  1. Kopfschutzstruktur für einen Gabelstapler, die Folgendes umfasst:
    ein Paar rechter und linker vorderer Säulen (51, 51), die an einer Vorderseite eines Fahrzeugkörpers (21) eines Gabelstaplers (1) montiert sind und in einer Fahrzeugbreitenrichtung voneinander beabstandet sind;
    ein Paar rechter und linker hinterer Säulen (52, 52), die an einer Rückseite des Fahrzeugkörpers (21) montiert sind und in der Fahrzeugbreitenrichtung voneinander beabstandet sind;
    ein Paar rechter und linker vertikaler Rahmen (55, 55), die obere Enden der vorderen Säulen (51) und obere Enden der hinteren Säulen (52) in einer Richtung von vorn nach hinten bezüglich des Fahrzeugs verbinden;
    einen vorderen seitlichen Rahmen (54), der die oberen Enden des Paars rechter und linker vorderer Säulen (51, 51) in der Fahrzeugbreitenrichtung verbindet;
    eine obere Platte (56), die über dem Paar rechter und linker vertikaler Rahmen (55, 55) mittels Wangen an entgegengesetzten Enden der oberen Platte (56) in der Fahrzeugbreitenrichtung angeordnet ist, die so auf oberen Oberflächen der vertikalen Rahmen (55, 55) angeordnet ist, dass sie sich von hinteren Enden der vertikalen Rahmen (55) zu der Vorderseite des Fahrzeugs erstreckt, wobei die obere Platte (56) eine vordere Kante, die bei der Mitte der vertikalen Rahmen (55) in eine Richtung von vorn nach hinten angeordnet ist, und eine vordere Wangenfläche (56b), die von der vorderen Kante fortlaufend ausgebildet und abwärts gebogen ist, aufweist; und
    mehrere Stangenelemente (57), wovon jedes ein erstes Ende, das an dem vorderen seitlichen Rahmen fixiert ist, und ein zweites Ende, das an der vorderen Wangenfläche (56b) fixiert ist, aufweist, wobei die Stangenelemente (57) in Abständen in der Fahrzeugbreitenrichtung angeordnet sind,
    dadurch gekennzeichnet, dass
    ein Winkelstück (58) im Wesentlichen in einer L-Form aus einer dicken Platte, das durch einen ersten Arm (58a), der entlang der Innenseite des oberen Endes der hinteren Säulen (52) angeordnet ist, und einen zweiten Arm (58b), der entlang der Innenseite des hinteren Endes der vertikalen Rahmen (55) angeordnet ist, gebildet ist, an einen Verbindungsabschnitt zwischen dem vertikalen Rahmen (55) und der hinteren Säule (52) so angeschweißt ist, dass das Winkelstück (58) an den vertikalen Rahmen (55) und an die hintere Säule (52) über den gesamten Umfang des Winkelstücks (58) fortlaufend angeschweißt ist, wobei die Enden des ersten Arms (58a) und des zweiten Arms (58b) der L-Form jeweils in einer Halbkreisform ausgebildet sind.
  2. Kopfschutzstruktur für einen Gabelstapler nach Anspruch 1, wobei eine Position der vorderen Wangenfläche (56b) in Richtung von vorn nach hinten bezüglich des Fahrzeugs wenigstens hinter einer Linie (IL) angeordnet ist, die die Spitzen der Gabeln (72) zum Anordnen von Lasten und einen Augenpunkt (IP) eines Fahrers durch die Zwischenräume zwischen den Stangenelementen (57) verbindet, wenn die Spitzen der Gabeln (72) eine obere Position erreichen und der Fahrern in einer korrekten Sitzposition sitzt.
  3. Kopfschutzstruktur für einen Gabelstapler nach Anspruch 1 oder 2, wobei eine hintere Kante der oberen Platte (56) eine hintere Wangenfläche (56c), die abwärts gebogen ist, aufweist, wobei die hintere Wangenfläche (56c) entgegengesetzte Enden in der Fahrzeugbreitenrichtung aufweist, die jeweils an dem Paar rechter und linker hinterer Säulen (52, 52) fixiert sind.
  4. Kopfschutzstruktur für einen Gabelstapler nach einem der Ansprüche 1 bis 3, wobei die obere Platte (56) mehrere Rillen aufweist, die so ausgebildet sind, dass sie Höhen aufweisen, die sich in einer vertikalen Richtung über einen gesamten Bereich der oberen Platte (56) in der Fahrzeugbreitenrichtung ändern.
  5. Kopfschutzstruktur für einen Gabelstapler nach einem der Ansprüche 1 bis 4, wobei die obere Platte (56) ein Verstärkungselement (56e) aufweist, das sich in der Fahrzeugbreitenrichtung erstreckt, das auf einer Seite der oberen Platte (56) angeordnet ist, die an den Fahrersitz und an eine Position, die dem Fahrersitz gegenüberliegt, angrenzt.
  6. Kopfschutzstruktur für einen Gabelstapler nach einem der Ansprüche 1 bis 5, wobei die Stangenelemente (57) jeweils einen rechteckigen Querschnitt in einer senkrechten Richtung zu einer Achse des jeweiligen Stangenelements (57) aufweisen, wobei jedes Stangenelement (57) so angeordnet ist, dass sich lange Seiten des Querschnitts in der vertikalen Richtung erstrecken.
EP12889009.2A 2012-11-29 2012-11-29 Frontschutzstruktur für gabelstapler Active EP2915771B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/080958 WO2014083659A1 (ja) 2012-11-29 2012-11-29 フォークリフトのヘッドガード構造

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EP2915771A1 EP2915771A1 (de) 2015-09-09
EP2915771A4 EP2915771A4 (de) 2016-07-06
EP2915771B1 true EP2915771B1 (de) 2020-07-22

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EP (1) EP2915771B1 (de)
JP (1) JPWO2014083659A1 (de)
CN (1) CN104520227A (de)
BR (1) BR112015007276A2 (de)
WO (1) WO2014083659A1 (de)

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JP6228180B2 (ja) * 2015-12-01 2017-11-08 本田技研工業株式会社 車体前部構造
JP6304225B2 (ja) * 2015-12-17 2018-04-04 株式会社豊田自動織機 立席式フォークリフト
CN109399507A (zh) * 2018-12-25 2019-03-01 重庆精高金属结构制造有限公司 一种叉车护顶架

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WO2014083659A1 (ja) 2014-06-05
BR112015007276A2 (pt) 2017-07-04
EP2915771A1 (de) 2015-09-09
EP2915771A4 (de) 2016-07-06
JPWO2014083659A1 (ja) 2017-01-05
CN104520227A (zh) 2015-04-15

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