WO2014083661A1 - フォークリフトの電装部品取付構造 - Google Patents

フォークリフトの電装部品取付構造 Download PDF

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Publication number
WO2014083661A1
WO2014083661A1 PCT/JP2012/080961 JP2012080961W WO2014083661A1 WO 2014083661 A1 WO2014083661 A1 WO 2014083661A1 JP 2012080961 W JP2012080961 W JP 2012080961W WO 2014083661 A1 WO2014083661 A1 WO 2014083661A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical
forklift
front cover
engine
electrical component
Prior art date
Application number
PCT/JP2012/080961
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
明浩 石神
朋之 早川
Original Assignee
ニチユ三菱フォークリフト株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ニチユ三菱フォークリフト株式会社 filed Critical ニチユ三菱フォークリフト株式会社
Priority to PCT/JP2012/080961 priority Critical patent/WO2014083661A1/ja
Priority to JP2014549710A priority patent/JP5943526B2/ja
Priority to EP12889304.7A priority patent/EP2927185A4/en
Priority to CN201280075235.6A priority patent/CN104540770B/zh
Priority to BR112015007296-8A priority patent/BR112015007296B1/pt
Publication of WO2014083661A1 publication Critical patent/WO2014083661A1/ja

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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
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/24—Electrical devices or systems
    • 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
    • B66F9/07513—Details concerning the chassis
    • B66F9/07527—Covers for, e.g. engines or batteries

Definitions

  • the present invention relates to an electrical component mounting structure disposed in an engine room of a forklift.
  • Forklifts are frequently used to improve the efficiency of transporting and unloading various types of luggage.
  • a method using a battery mounted on the forklift or the power of the internal combustion engine is employed.
  • the internal combustion engine itself becomes a high temperature due to the operation of the internal combustion engine, and the surrounding members are heated by the radiant heat dissipated from the internal combustion engine.
  • electrical components for vehicles including forklifts
  • Patent 1 is disclosed as an example corresponding to such a high temperature.
  • Patent Document 1 in a battery forklift truck, there is a structure in which a driving motor that drives a driving wheel and a working device and a controller that controls the working motor are mounted via a bracket that is detachably fixed to a counterweight. It is disclosed. There is a technical disclosure in which a controller is attached to a counterweight having a large amount of heat via a bracket so that heat generated by the controller is dissipated from the counterweight via the bracket.
  • the engine hood is attached to a standing plate disposed at the rear of the engine hood via a pair of left and right hinges.
  • a structure is disclosed in which the engine hood is removed from the vehicle body by shifting the pair of left and right hinges in the axial direction of the rotation axis with respect to the rotation axis of the hinge. This facilitates the work of forklift maintenance and repair work.
  • JP 7-172800 A JP-A-10-310386
  • a concave portion must be provided in the counterweight in order to mount the controller.
  • the counterweight is for allowing the forklift to travel and be steered so that the rear wheel does not lift around the front wheel of the forklift when a load of the baggage acts on the load lifting device of the forklift. Therefore, providing a recess in the counterweight requires increasing the outer shape of the counterweight to ensure a suitable weight. If the outer shape of the counterweight is increased, there is a problem that the turning ability, which is an important function of the forklift, is hindered. Furthermore, according to Patent Document 2, there is a structure for removing the engine hood from the vehicle body at the time of maintenance and repair work of the forklift, and no technical disclosure for protecting electrical components from the radiant heat of the engine has been made.
  • the present invention has been made in view of the above-described problems, and concentrates the electrical components arranged around the engine in one place so that the electrical harness does not touch the engine.
  • An object is to provide an electrical component mounting structure for a forklift that facilitates the maintenance and inspection of components.
  • the present invention extends in the longitudinal direction of the forklift body and has a pair of left and right side frames spaced in the vehicle width direction, A pair of left and right side covers erected on an upper surface of the pair of side frames at a position facing the engine and the forklift devices mounted between the pair of side frames; A front cover that closes the front end in the vehicle longitudinal direction of the side cover in the vehicle width direction, bridges between the pair of left and right side frames, and is detachably attached to the pair of left and right side frames; An engine hood that covers an upper end of a space surrounded by the side cover and the front cover, A forklift electrical component mounting structure can be provided, wherein a plurality of types of electrical components for operating the forklift are mounted on the engine side surface of the front cover.
  • an electrical component board having a plurality of types of electrical components mounted on the engine side surface of the front cover is detachably disposed with a fastening member.
  • the electrical harness connected to the electrical component is easily assembled, and the electrical harness is easily prevented from contacting or approaching the engine.
  • the harness is routed vertically and horizontally around the engine, so the number of clamps that support the electrical harness, the support bracket that fixes the clamp, and the like increase, and the cost increases. It is possible to prevent deterioration of maintainability, miswiring, and obstruction of air circulation around the engine.
  • the front cover can be removed from the side frame together with the electrical component board to which a plurality of types of electrical components are attached, the maintenance and inspection of the electrical components is facilitated.
  • the electrical component board is attached so that a surface on which the plurality of types of electrical components are mounted faces the front cover.
  • the performance of the electrical component can be maintained and the durability can be improved by protecting the electrical component from the radiant heat of the engine by making the surface on which the electrical component is mounted face the front board side. .
  • a connector of an electrical harness that operates the electrical component is faced to and directly connected to an electrical terminal provided on the electrical component.
  • the electrical harness branched from the electrical harness to each electrical component is prevented from swinging due to the vibration of the vehicle and coming into contact with the engine or other components and being damaged. Further, in order to suppress the swing of the branched electric harness, a clamp for supporting the branched electric harness, a support bracket for fixing the clamp, and the like are not necessary.
  • the attachment portion of the front cover to the side frame is disposed at a position covered with the engine hood.
  • the safety of the driver's work can be achieved by eliminating the part of the fastening member for attaching the front cover to the side frame. Can be improved.
  • a clamp bracket for fixing a clamp for supporting the electric harness is disposed on the front cover and / or the electrical component board.
  • the electrical harness when the front cover is removed from the side frame for maintenance / inspection of the electrical parts, the electrical harness is moved (bent) at the same time by clamping the electrical harness to the front cover.
  • the electrical harness As well as preventing deformation or breakage of the connecting part between the branch and the electric harness, it is easy to see the combination of connections, so it is possible to prevent erroneous connection between the electrical component and the branched electric harness after the parts are replaced, and improve maintainability. be able to.
  • FIG. 1 shows a schematic side view of a forklift in which the present invention is implemented.
  • the front perspective view of the engine hood part of the present invention is shown.
  • the electrical component attachment state figure of the front cover of 1st Embodiment of this invention is shown.
  • the electrical component attachment state figure of the front cover of 2nd Embodiment of this invention is shown.
  • the detailed figure of the single item of the front cover by which this invention is implemented is shown.
  • FIG. 1 shows a schematic perspective view of a forklift in which the present invention is implemented.
  • the forklift 1 includes a vehicle body 2, a luggage lifting device 7 attached to the front of the vehicle body 2, and a cargo lifted by the luggage lifting device 7 that is mounted on the upper portion of the vehicle body 2 and collapses to the driver's seat.
  • a head guard 5 that prevents falling, a front wheel 8 that is a driving wheel for moving the forklift 1, a rear wheel 9 that is a steering wheel of the forklift 1, and a rear wheel 9 that is a steering wheel of the forklift 1.
  • the weight of the load of the load lifting device 7 prevents the rear wheel 9 from being separated from the road surface, and the counter weight 3 has a weight that allows the rear wheel 9 to strongly contact the road surface, and the handle 4 for steering the rear wheel 9. And a seat 10 on which the driver is seated. Since the forklift 1 has the rear wheel 9 as a steering wheel, the traveling direction of the vehicle body 2 cannot be changed unless the counterweight 3 strongly contacts the road surface.
  • the load elevating device 7 includes a fork (claw) 72 having an L-shaped side view for placing a load, a backrest 73 to which the fork 72 is attached, and a mast 71 that supports the backrest 73 so as to be slidable in the vertical direction.
  • a lift chain (not shown) for sliding the backrest 73 in the vertical direction; a tilt cylinder (hydraulic) 76 for adjusting the tip of the fork 72 by tilting the mast 71 and the auxiliary mast 75 inside the mast 71; It has. Then, the tip of the fork 72 is inclined (adjusted) up and down, the fork 72 is inserted below the load, and the load is placed on the fork 72.
  • the auxiliary mast 75 slides up and down with respect to the mast 71 by a lift cylinder (hydraulic pressure) (not shown).
  • the vehicle body 2 of the forklift 1 includes a pair of left and right side frames 21 extending in the front-rear direction of the forklift 1 and spaced in the vehicle width direction, and the pair of left and right side frames 21.
  • a front cross member (not shown) on the front side and a rear cross member (not shown) on the rear side are connected to each other in the vehicle width direction and arranged with an interval in the front-rear direction.
  • a traveling and working device such as an engine (not shown), a front wheel driving device, a hydraulic pump that generates hydraulic pressure as a power source of a hydraulic device, a rear wheel steering device, and the like. It is installed.
  • covers that cover the upper side of these devices and devices are arranged.
  • an engine hood 24 that covers the upper end of the engine room ER.
  • the opening on the vehicle rear side formed by the pair of left and right side covers 26 and the engine hood 24 is configured to be closed by the front end surface of the counterweight 3. Further, the front side of the front cover 25 covers the upper surface between the pair of left and right side frames 21 with a floor plate 27 on which a driver puts his / her foot for operating the forklift 1.
  • the engine hood 24 is rotatable rearward of the vehicle body via a hinge (not shown) provided at the boundary between the counterweight 3 and the rear end of the engine hood 24.
  • Reference numeral 30 denotes a damper device, which is a rotation assist device for rotating the engine hood 24 backward via a hinge. Further, a hook device 28 for fixing the rearward rotation of the engine hood 24 is disposed at the front end portion of the engine hood 24.
  • the hook device 28 includes a hook portion 28a fixed to the front cover 25 and a hook lever portion 28b fixed to the engine hood 24 side.
  • the engaging / disengaging method is such that the engaging lever at the lower end of the hook lever portion 28b is moved downward by rotating the operating lever 28c of the hook lever portion 28b downward about the rotation shaft provided in the hook lever portion 28b. Moving. Since the moved engaging portion is formed to freely rotate in the longitudinal direction of the vehicle, the hook lever portion 28b is operated by operating the engaging portion to the hook portion 28a (manually). Is again turned upward to complete the engagement between the hook portion 28a and the hook lever portion 28b.
  • FIG. 5 shows a single product diagram of the front cover 25.
  • the front cover 25 includes a cover body 25a having a substantially rectangular shape closing the pair of left and right side covers 26, and an upper flange portion 25b obtained by bending the upper edge of the cover body 25a rearward (to the side where the electrical components are mounted). And a side flange portion 25c that is bent rearward from both edges in the vehicle width direction of the cover body 25a to maintain rigidity and tilting of the cover body 25a in the front-rear direction, and a vehicle width direction from the lower edge of the side flange portion 25c.
  • a mounting portion 25d that is bent inward and is placed on the upper surface of the side frame 21 and fastens the front cover 25 to the side frame 21 with bolts 21a that are fastening members is integrally formed.
  • the upper flange portion 25b maintains the rigidity of the cover body 25a and protects the electrical component R described later. That is, by bending the upper flange portion 25b toward the side where the electrical components are mounted, even if rainwater enters from the gap with the engine hood 24 in the rain, the flange portion 25b can prevent water from getting wet. .
  • the mounting portion 25 d of the front cover 25 is fastened from above by a bolt 21 a that is a fastening member on the upper surface of the side frame 21.
  • a hydraulic pump that generates hydraulic pressure as a power source for an engine, a device for driving front wheels, a hydraulic device, etc., and a steering device for rear wheels
  • a large number of electrical components R for controlling the operation of the traveling and working devices are mounted.
  • a large number of electrical components R are mounted on the rear surface of the main body 25 a of the front cover 25.
  • Each electrical component R is provided with an electrical terminal (not shown) for electrical connection.
  • an electrical harness HG connected to the electrical terminal is routed in the engine room ER.
  • the electrical harness HG is bundled with wires connected to a plurality of electrical components, and is covered with a tube member having heat resistance and flexibility.
  • a branch harness HS that is electrically connected to each electrical component R is branched from the electrical harness HG.
  • a coupler HK that is directly connected to the electrical terminal of the electrical component R is disposed at the tip of the branch harness HS.
  • a clamp 23 for fixing the electric harness HG and a clamp bracket 22a for fixing the clamp 23 to the front cover 25 are fixed to the lower portion of the main body 25a of the front cover 25.
  • the electrical harness HG is fixed to the front cover 25, and the branch harness HS branched from the electrical harness HG is connected to the electrical terminals of the electrical component R. Accordingly, the branch harness HS is fixed by both the electric harness HG and the electrical component R, and the branch harness HS can be prevented from being swung by the vibration of the vehicle.
  • the electrical harness HG and the branch harness HS are fixed in a state of being brought closer to the main body portion 25a side of the front cover 25. Therefore, even if the forklift 1 travels on a rough road or the like, the electric harness HG and the branch harness HS can be prevented from approaching or coming into contact with the engine and being damaged.
  • the hook device 28 of the front cover 25 is released, and the engine hood 24 is rotated rearward of the vehicle.
  • the side cover 26 is removed from the side frame 21, the bolt 21a that attaches the front cover 25 to the side frame 21 is removed, and the front cover 25 is tilted forward.
  • assembly is carried out in the reverse procedure.
  • the electric harness HG and the branch harness HS are moved (bent) at the same time by clamping the electric harness HG to the front cover 25. be able to.
  • the connecting portion between the electrical component R and the branched harness HS branched is prevented from being deformed or damaged. Moreover, since the connection state of the connection can be seen well, it is possible to prevent erroneous connection between the electrical component and the branched electric harness after the replacement of the component, and to improve maintainability.
  • the present embodiment is the same as the first embodiment except that the electrical component board 29 is added to the front cover 25, and thus the description other than the electrical component board 29 is omitted. Further, the same parts are denoted by the same reference numerals and description thereof is omitted.
  • an electrical component board 29 is further added to the engine room ER side of the front cover 25.
  • the electrical component board 29 is fastened to the main body 25a of the front cover 25 by bolts 21a that are fastening members.
  • the electrical component board 29 is mounted on the main body 25a with the surface on which a plurality of electrical components R are mounted facing the main body 25a side of the front cover 25.
  • both the electrical harness HG and the branch harness HS are increased. Accordingly, a clamp 23a for fixing the electrical harness HG and clamp brackets 22b and 22c for fixing the clamp 23a to the front cover 25 are fixed to the lower portion of the main body 25a of the front cover 25. Further, the clamp bracket 22 is fastened together with the electrical component board 29 to the mounting bolt 21a of the electrical component board 29, and the electrical harness HG is fixed to the front cover 25 by the clamp 23a.
  • the electrical component board 29 is mounted on the main body 25a with the surface on which a plurality of electrical components R are mounted facing the main body 25a side of the front cover 25. Therefore, the electrical component R has a structure in which the radiant heat of the engine is blocked by the electrical component board 29, and a good effect can be obtained particularly in an electronic control device that is easily affected by heat.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Forklifts And Lifting Vehicles (AREA)
PCT/JP2012/080961 2012-11-29 2012-11-29 フォークリフトの電装部品取付構造 WO2014083661A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PCT/JP2012/080961 WO2014083661A1 (ja) 2012-11-29 2012-11-29 フォークリフトの電装部品取付構造
JP2014549710A JP5943526B2 (ja) 2012-11-29 2012-11-29 フォークリフトの電装部品取付構造
EP12889304.7A EP2927185A4 (en) 2012-11-29 2012-11-29 FIXING STRUCTURE FOR ELECTRICAL COMPONENTS FOR FORKLIFT TRUCK
CN201280075235.6A CN104540770B (zh) 2012-11-29 2012-11-29 叉车的电装零部件安装结构
BR112015007296-8A BR112015007296B1 (pt) 2012-11-29 2012-11-29 Estrutura de conexão de componentes elétricos para empilhadeira

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/080961 WO2014083661A1 (ja) 2012-11-29 2012-11-29 フォークリフトの電装部品取付構造

Publications (1)

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WO2014083661A1 true WO2014083661A1 (ja) 2014-06-05

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PCT/JP2012/080961 WO2014083661A1 (ja) 2012-11-29 2012-11-29 フォークリフトの電装部品取付構造

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EP (1) EP2927185A4 (pt)
JP (1) JP5943526B2 (pt)
CN (1) CN104540770B (pt)
BR (1) BR112015007296B1 (pt)
WO (1) WO2014083661A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11427450B2 (en) 2018-06-01 2022-08-30 Hyster-Yale Group, Inc. Lift truck having advantageous design elements
CN110356483B (zh) * 2019-07-19 2023-08-25 无锡华盛力通电驱动系统有限公司 一种四轴驱动履带轮式叉车
AU2021470385A1 (en) * 2021-10-22 2024-04-04 Crown Equipment Corporation Industrial truck

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JPH0542300U (ja) * 1991-11-19 1993-06-08 小松フオークリフト株式会社 産業機械における作業機の操作装置
JPH07172800A (ja) 1993-12-21 1995-07-11 Komatsu Forklift Co Ltd バッテリーフォークリフトトラックにおけるコントローラ取り付け構造
JPH0912289A (ja) * 1995-06-29 1997-01-14 Toyota Autom Loom Works Ltd 産業車両における制御装置の取付構造
JP3040051U (ja) * 1997-01-29 1997-08-05 デンヨー株式会社 エンジン作業機のエンジン停止装置
JPH10310386A (ja) 1997-05-09 1998-11-24 Toyota Autom Loom Works Ltd フォークリフト
JPH11314897A (ja) * 1998-04-30 1999-11-16 Toyota Autom Loom Works Ltd 産業車両用配線装置
JP2003002592A (ja) * 2001-06-15 2003-01-08 Toyota Industries Corp 産業車両用のフードの開閉構造
JP2006054219A (ja) * 2004-08-09 2006-02-23 Hoshizaki Electric Co Ltd 電装箱

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Publication number Priority date Publication date Assignee Title
JPH0542300U (ja) * 1991-11-19 1993-06-08 小松フオークリフト株式会社 産業機械における作業機の操作装置
JPH07172800A (ja) 1993-12-21 1995-07-11 Komatsu Forklift Co Ltd バッテリーフォークリフトトラックにおけるコントローラ取り付け構造
JPH0912289A (ja) * 1995-06-29 1997-01-14 Toyota Autom Loom Works Ltd 産業車両における制御装置の取付構造
JP3040051U (ja) * 1997-01-29 1997-08-05 デンヨー株式会社 エンジン作業機のエンジン停止装置
JPH10310386A (ja) 1997-05-09 1998-11-24 Toyota Autom Loom Works Ltd フォークリフト
JPH11314897A (ja) * 1998-04-30 1999-11-16 Toyota Autom Loom Works Ltd 産業車両用配線装置
JP2003002592A (ja) * 2001-06-15 2003-01-08 Toyota Industries Corp 産業車両用のフードの開閉構造
JP2006054219A (ja) * 2004-08-09 2006-02-23 Hoshizaki Electric Co Ltd 電装箱

Also Published As

Publication number Publication date
EP2927185A1 (en) 2015-10-07
CN104540770A (zh) 2015-04-22
JP5943526B2 (ja) 2016-07-05
JPWO2014083661A1 (ja) 2017-01-05
EP2927185A4 (en) 2016-07-27
BR112015007296B1 (pt) 2021-08-31
CN104540770B (zh) 2016-11-09
BR112015007296A2 (pt) 2017-07-04

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