WO2001045998A1 - Structure-capot d'un vehicule de chantier monte sur chenilles - Google Patents

Structure-capot d'un vehicule de chantier monte sur chenilles Download PDF

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Publication number
WO2001045998A1
WO2001045998A1 PCT/JP2000/009062 JP0009062W WO0145998A1 WO 2001045998 A1 WO2001045998 A1 WO 2001045998A1 JP 0009062 W JP0009062 W JP 0009062W WO 0145998 A1 WO0145998 A1 WO 0145998A1
Authority
WO
WIPO (PCT)
Prior art keywords
bonnet
balance weight
movable
work vehicle
turning work
Prior art date
Application number
PCT/JP2000/009062
Other languages
English (en)
Japanese (ja)
Inventor
Masami Miyanishi
Original Assignee
Yanmar Diesel Engine Co., Ltd.
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 Yanmar Diesel Engine Co., Ltd. filed Critical Yanmar Diesel Engine Co., Ltd.
Publication of WO2001045998A1 publication Critical patent/WO2001045998A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D49/00—Tractors
    • B62D49/08—Tractors having means for preventing overturning or tipping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles

Definitions

  • the present invention relates to a bonnet structure of a turning work vehicle, and more particularly to a structure for facilitating maintenance work of an internal device when the hood is opened in a bonnet at a rear side of a turning table of the turning work vehicle.
  • a balance weight is provided at a lower portion of the bonnet so as to balance the weight with a working machine attached to the front of the turning table.
  • the movable bonnet and the balance weight are positioned vertically, even when the bonnet is released, the lower balance weight is in the way, and particularly when the apparatus is disposed below the bonnet. In order to gain access, it is necessary to take a posture of leaning down, which causes a problem that maintenance work is difficult to perform.
  • the open space of the bonnet expands downward. It is excellent in that it is easy to carry out maintenance work, but the balance weight is reduced by reducing the vertical width of the balance weight, achieving the original purpose of the balance weight, which balances with the work equipment
  • the side bumper was designed to be lightweight, with the direct purpose of protecting the swivel and bonnet, so that it was possible to maintain the balance with the work equipment in front. Had the problem of being difficult.
  • the present invention has been made in view of the problem of the conventional configuration and the problem of the technology of Japanese Utility Model Application Laid-Open No. 7-29052, and its object is to improve maintenance workability and balance weight.
  • An object of the present invention is to provide a bonnet structure that can realize both of securing weight. Disclosure of the invention
  • the rear upper portion of the swivel is covered with a bonnet, a balance weight is disposed below the bonnet, and a concave portion is provided in a substantially left and right center of an upper edge of the balance weight.
  • the bonnet is formed with an extended portion extending to the region of the concave portion. This increases the open area of the ponnet, which facilitates maintenance work, especially for the device located below the bonnet, and reduces the weight of the balance weight by the parts other than the part provided with the recess. Thus, the original purpose of the balance weight can be sufficiently achieved.
  • the present invention provides the bonnet, wherein the bonnet is divided into three parts: a central movable bonnet that can be opened and closed, and bonnets disposed on both left and right sides of the movable bonnet. At least one side of the bird is fixedly arranged. This makes it possible to reduce the weight of the movable hood by making the width of the movable bonnet to be opened and closed slightly narrower, reducing the force required for the opening and closing work, and contributing to the improvement of the efficiency of the entire maintenance work.
  • the contour of the extending portion of the movable bonnet is the balance weight.
  • the left and right edges of the movable bonnet other than the extending portion are arranged on the left side. It is formed along the mating surface with the bonnet, and the contour of the extended portion is connected linearly and continuously to the contours of the left and right edges of the portion other than the extended portion.
  • the left and right side edges of the movable bonnet can be configured in a stepless shape, so that the metal processing of the movable bonnet ⁇ processing of packing and the like is easy, and the production cost can be reduced.
  • the outer surface of the balance weight is formed in an arc shape in plan view or a polygonal shape in plan view, and the outer surface of the bonnet is formed substantially along the outer surface of the balance sheet in plan view.
  • the balance weight and the outer circumference of the bonnet follow substantially the same trajectory (circle) in plan view, so that even when turning in a narrow work place, it is easy to avoid contact with obstacles and the like.
  • the operability is improved.
  • the outer surface of the extended portion of the bonnet is located inside the outer surface of the balance weight, a rigid body having a high rigidity is provided. It is located on the outer side of the turn, so that it is easy to avoid contact of the extension with an obstacle, and damage of the extension can be prevented.
  • the space for attaching the rear emblem can be secured on the outer peripheral surface of the bonnet extension located inside the balance ⁇ , and the uneven surface of the bal- ance made of animal has expensive metal.
  • a conventional structure to attach a steel emblem it is sufficient to form a bonnet with iron plate or resin and attach the rear emblem to the smooth surface of the extension. Therefore, a thin film-shaped rear emblem or the like can be used, which reduces costs and facilitates installation.
  • the present invention provides a cabin extending to a substantially rear outer periphery of the turntable, a balance weight having an outer surface formed along a substantially rear outer periphery of the turntable, and a lower surface of a rear portion of the cabin and a balance weight.
  • a bonnet is provided between the bonnet and the upper surface.
  • FIG. 1 is a left side view of a turning work vehicle according to the present invention.
  • Fig. 2 is a right side view
  • Fig. 3 is a front view
  • Fig. 4 is a rear view.
  • FIG. 5 is a rear side view of the swivel base showing the opening and closing operation of the movable bonnet.
  • FIG. 6 is a rear plan view of the swivel base.
  • FIG. 7 is a left side view of the turning work vehicle according to the present invention equipped with a cabin
  • FIG. 8 is a rear view thereof.
  • the turning work vehicle has a turning table bearing 2 disposed in the upper center of a crawler-type traveling device 1, and the turning table bearing 2 supports the turning table 3 so that it can turn left and right. .
  • a soil discharging plate 4 is disposed so as to be vertically rotatable.
  • the discharge plate 4 may be attached to the rear of the crawler-type traveling device 1.
  • the bonnet 5 has a split configuration as described later, and is formed in a substantially half-moon shape in plan view, and is disposed on the rear portion of the swivel 3.
  • a driver's seat 20 is provided above the hood 5, and a canopy 21 is mounted above the driver's seat 20. Steps are formed at the front of the driver's seat 20 to provide a walk-through system that allows entry and exit from either side.
  • An operation pedal and an operation lever are arranged on the side of the 0 and on the front of the step.
  • a boom bracket is attached to the front end of the swivel 3 so as to be rotatable left and right, and a working machine (not shown) composed of a boom, an arm, a bucket, and the like is attached to the boom bracket 7. By manipulating the ditch, it is possible to dig a ditch on the side.
  • a balance weight 6 is provided at the lower rear end of the swivel 3 in order to balance the weight of the work implement mounted on the front of the swivel 3 as described above.
  • the bonnet 5 includes a movable bonnet 51 attached to the rear center of the turntable 3 so as to be openable and closable, and at least two bonnets attached to the left and right sides of the movable bonnet 51.
  • Left and right bonnets with one side fixedly arranged 52 2 L ⁇ 53 2 R divided into three parts, side cover 1 53 provided on the right side of the driver's seat, and bonnet 52 L below Together with the pump maintenance cover 54 and the like, the outer shape of the swivel 3 is constituted.
  • the pump maintenance cover 54 is configured as a heavy load and also serves as a balance weight, ensuring a balance between the left and right weights at the rear of the swivel 3.
  • the left and right bonnets 5 2 5 2 R may be fixedly arranged on both sides, or one side may be made movable so that the inside of the bonnet 5 can be maintained.
  • a duct (not shown) is provided on the rear right side of the bonnet 5, and an intake port 61 is provided on the right bonnet 52R.
  • An exhaust port 62 is provided on the left bonnet 52L to release heat generated from the engine E and the like to the outside.
  • the intake port 61 and the exhaust port 62 are provided at appropriate positions depending on the arrangement of the engine E, the cooling fan, and the like mounted in the bonnet 5, and the positions shown in the present embodiment. It is not particularly limited.
  • a reservoir tank 22 is removably attached to the lower right side of the driver's seat 20 and covers the upper surface of the reservoir tank 22 formed in an arc shape.
  • a side cover 53 is provided. In this embodiment, since the reservoir tank 22 is provided on the right side of the swivel base 3, the side cover 53 is provided on the right side of the driver's seat 20. These may be arranged on the left side of the swivel 3.
  • a balance weight 6 is arranged below the bonnet 5, and the balance weight 6
  • the outer surface of the balance weight 6 is formed in a substantially arc shape in a plan view, and the bonnet 5 has an outer surface substantially continuous with the outer surface of the balance weight 6.
  • the outer circumferences of the bonnet 5 and the balance weight 6 draw substantially the same curved surface when turning, and even when the turning operation is performed on a narrow road or a work place, the operator can turn the outer circumference of the turning. It is easy to recognize the obstacle, and it is possible to avoid the problem of bringing the bonnet or the like into contact with obstacles, etc., and to improve the operability.
  • the outer surface of the balance weight 6 is formed in a polygonal shape in plan view
  • the outer surface of the bonnet 5 may be formed in a polygonal shape in plan view so as to be substantially continuous with the outer surface of the balance weight 6.
  • a concave portion 6a is formed at a substantially right and left central portion of the upper edge of the balance weight 6.
  • the lateral width of the concave portion 6a is substantially equal to the lateral width of the movable bonnet 51 located immediately above, and the lower end of the movable bonnet 51 is extended so as to enter the area of the concave portion 6a.
  • the extending portion 51a thus configured has a contour 71 along the contour 72 of the concave portion 6a.
  • a configuration for opening and closing the movable bonnet 51 will be described.
  • a bracket 30 is fixedly provided at the upper end position of the inner surface of the movable bonnet 51, and the bracket 30 is supported at a pivot point 31 so as to be vertically rotatable. It has been.
  • a support piece 32 is fixed to the inner surface of the movable bonnet 51, and one end of the slide bar 33 rotates on the support piece 32. It is freely supported.
  • a support plate 34 is fixed via a frame or the like, and the upper end of a vertically elongated slide rail 35 is attached to the support plate 34.
  • a slide groove 36 is formed in the slide rail 35 along the longitudinal direction, and the other end of the slide bar 33 is engaged with the slide groove 36. The other end of the slide bar 33 is slidable along the slide groove 36.
  • the slide groove 36 is provided substantially in the vertical direction. In the region from the middle to the lower side, the shape is slightly bent forward, and the upper end is bent at a ⁇ angle in a “V” shape.
  • the hook portion 36a is configured.
  • the movable hood 51 is fixed in an open state, and the engine E and its peripheral parts arranged at the rear of the swivel base 3 can be maintained.
  • the concave portion 6a is formed substantially at the center of the right and left of the balance weight 6, and the lower end of the movable bonnet 51 extends to the concave portion 6a, so that the movable bonnet 51 is opened. By doing so, a large maintenance space can be secured especially in the downward direction.
  • Some devices, such as the engine E, that are subject to maintenance are located below the movable bonnet 51, but maintenance work is easy because the open area has been expanded below.
  • the supply port 23 for supplying engine lubricating oil is located below as shown in FIG.
  • the movable bonnet 5 1 Such a replenishment operation can be easily performed because sufficient space is secured when the vehicle is opened.
  • the balance weight 6 is formed in an upwardly convex shape to form the protruding portions 6b6b. .
  • the rebalancing weight 6 can secure a sufficient weight at the protruding portions 6b and 6b even if the recess 6a is formed due to an increase in the open area. Can be secured stably.
  • the extended portion 51 a of the bonnet 5 (movable bonnet 51) has a concave shape on the inner side of the swivel base 3, and its outer surface (the dashed line shown in the figure) X) is located on the inner side of the outer surface of the balance weight 6 (dashed-dotted line Y in the figure).
  • the rigid balance weight 6 with high rigidity is located at the outermost periphery on the rear side of the swivel 3, so that the movable bonnet 51 with relatively low rigidity does not directly interfere with surrounding obstacles.
  • the movable hood 51 can be sufficiently protected.
  • the rear emblem was attached to the outer surface of the balance weight, so if a thin lya emblem is to be attached to the balance weight, which is usually made of animal, it is the surface to be attached. ⁇ Unevenness on the skin surface cannot be concealed, and unevenness occurs on the display surface of the lya emblem, which impairs the clarity and aesthetic appearance of the display. In the end, it is required to use a thick material for the lya emblem so that the unevenness on the skin surface can be concealed. There was no other choice but to raise the cost.
  • the bonnet 51 is made of an iron plate. If it is made of plastic or resin, it can be configured to attach the lya emblem to the processed surface with less unevenness. Therefore, it is possible to use a thin film-shaped object in which the unevenness of the adhered surface is easily reflected on the unevenness of the display surface as the lya emblem. The number of parts is reduced and mounting is easy.
  • the bonnet 5 disposed above the balance weight 6 is composed of a movable bonnet 51 which can be freely opened and closed at the center and left and right bonnets 5 2L ⁇ 5 2R which are fixedly disposed on at least one side. Because of the three-part configuration, to reduce the force required to open and close the movable bonnet 51, it is sufficient to slightly reduce the left and right width of the movable bonnet 51 and reduce the weight.
  • the left and right edges of the movable bonnet 51 in portions other than the extended portion 51a are mating surfaces with the left and right bonnets 51L and 51R.
  • the contour 71 of the extension 51a is formed along the contour 72 of the recess 6a of the balance sheet 6, and the left and right
  • the contour line 7 3 ⁇ 73 of the edge is configured to be continuously connected to the contour line 71 of the extension 51 a.
  • FIG. 7 and 8 are views showing an embodiment in which the cabin 25 is mounted on the upper part of the small turning work vehicle having the bonnet structure according to the present invention described above.
  • the rear part of the swivel 3 is covered with a bonnet 5, and the bonnet 5 is composed of a movable bonnet 51 and left and right bonnets 5 2L ⁇ 5 2R on which at least one side is fixedly arranged. And a three-part configuration.
  • the lower end of the movable bonnet 51 is extended downward so as to enter the concave portion 6a of the balance weight 6, and forms an extended portion 51a.
  • the cabin 25 is extended almost to the rear outer periphery of the swivel base 3 to secure a large space in the cabin 25, and the bonnet 5 is the lower surface of the rear part of the cabin 25 and the outer surface along the rear outer periphery of the swivel base 3. It is provided between the upper surfaces of the balance weights 6 each having a shape. That is, the rear portion of the cabin 25, the bonnet 5, and the balance weight 6, which are each formed in a substantially arc shape in plan view, are arranged so that their outer surfaces are substantially wrapped in plan view.
  • the outer surfaces of the three members of the cabin 2 5 ⁇ bonnet 5 ⁇ balance gate 6 as a whole form a smooth substantially cylindrical surface without irregularities, and the rear part of the working vehicle as a whole is Draws a curved surface along a substantially cylindrical surface.
  • the visibility of the outer circumference of the turn is improved, and the rear space required for the turn is compact, enabling the turn in a narrow alley or a work place, and excellent operability.
  • the canopy 21 while maintaining the weight balance by the balance ⁇ ⁇ 8, when the movable bonnet 51 is opened, a large space is secured to facilitate maintenance work. I have.
  • the embodiment of the present invention has been described.
  • the above-described bonnet 5 may be formed integrally instead of the three-part structure described above.
  • the integrated bonnet 5 opens and closes as a whole, and the opening area can be increased in combination with the provision of the concave portion 6a at substantially the left and right centers of the balance weight 6, thereby improving maintainability.
  • the configuration is excellent.
  • a force in which a pump maintenance cover 54 is provided on the left side of the balance weight 6 may be employed.
  • the balance weight 6 may be integrally formed up to the position where the pump maintenance cover 54 is disposed. I do not care. Industrial applicability
  • the bonnet structure according to the present invention is useful for a turning work vehicle, and is particularly suitable for a configuration for improving maintainability of internal devices while stably maintaining the front-rear balance of the work vehicle.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Superstructure Of Vehicle (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

L'invention concerne une structure-capot dans laquelle la partie supérieure arrière d'un plateau pivotant est recouverte d'un capot (5); un conterpoids (6) est installé sous le capot (5); une pièce en dépression (6a) est placée dans le conterpoids (6), généralement au niveau de la partie centrale de son bord supérieur; et une pièce en saillie (51a) s'étendant à l'intérieur de la pièce en dépression (6a) est formée dans le capot (5). La zone ouverte du capot (5) est agrandie pour faciliter une opération d'entretien des dispositifs situés à l'intérieur du capot (5) sur le côté inférieur. La masse du conterpoids (6) peut être suffisamment assurée par des parties autres que celles recevant la pièce en dépression (6a); et le but initial du conterpoids (6), qui est d'assurer un équilibre avec la machine de chantier dans l'axe longitudinal, peut être atteint sans inconvénient. d'un véhicule de chantier monté sur chenilles
PCT/JP2000/009062 1999-12-22 2000-12-20 Structure-capot d'un vehicule de chantier monte sur chenilles WO2001045998A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP36481899A JP4109401B2 (ja) 1999-12-22 1999-12-22 旋回作業車のボンネット構造
JP11/364818 1999-12-22

Publications (1)

Publication Number Publication Date
WO2001045998A1 true WO2001045998A1 (fr) 2001-06-28

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Application Number Title Priority Date Filing Date
PCT/JP2000/009062 WO2001045998A1 (fr) 1999-12-22 2000-12-20 Structure-capot d'un vehicule de chantier monte sur chenilles

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JP (1) JP4109401B2 (fr)
WO (1) WO2001045998A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103587588A (zh) * 2012-08-13 2014-02-19 北汽福田汽车股份有限公司 一种汽车舱盖的支撑结构
EP3868585A1 (fr) * 2012-05-28 2021-08-25 Yanmar Power Technology Co., Ltd. Véhicule de travail rotatif

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7055074B2 (ja) * 2018-07-06 2022-04-15 ヤンマーパワーテクノロジー株式会社 作業車両
JP2023072352A (ja) * 2021-11-12 2023-05-24 株式会社小松製作所 作業機械

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56143972U (fr) * 1980-04-01 1981-10-30
JPH02145572U (fr) * 1989-05-15 1990-12-11
JPH0729052U (ja) * 1993-10-29 1995-06-02 新キャタピラー三菱株式会社 作業機のバランス用ウェート部材構造

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56143972U (fr) * 1980-04-01 1981-10-30
JPH02145572U (fr) * 1989-05-15 1990-12-11
JPH0729052U (ja) * 1993-10-29 1995-06-02 新キャタピラー三菱株式会社 作業機のバランス用ウェート部材構造

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3868585A1 (fr) * 2012-05-28 2021-08-25 Yanmar Power Technology Co., Ltd. Véhicule de travail rotatif
CN103587588A (zh) * 2012-08-13 2014-02-19 北汽福田汽车股份有限公司 一种汽车舱盖的支撑结构

Also Published As

Publication number Publication date
JP4109401B2 (ja) 2008-07-02
JP2001180526A (ja) 2001-07-03

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