WO2013021700A1 - ホイールローダ - Google Patents
ホイールローダ Download PDFInfo
- Publication number
- WO2013021700A1 WO2013021700A1 PCT/JP2012/062001 JP2012062001W WO2013021700A1 WO 2013021700 A1 WO2013021700 A1 WO 2013021700A1 JP 2012062001 W JP2012062001 W JP 2012062001W WO 2013021700 A1 WO2013021700 A1 WO 2013021700A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lock bar
- frame lock
- vehicle body
- hole
- wheel loader
- Prior art date
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0841—Articulated frame, i.e. having at least one pivot point between two travelling gear units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
- B60R3/02—Retractable steps or ladders, e.g. movable under shock
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D53/00—Tractor-trailer combinations; Road trains
- B62D53/02—Tractor-trailer combinations; Road trains comprising a uniaxle tractor unit and a uniaxle trailer unit
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/34—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
- E02F3/3405—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism
- E02F3/3411—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism of the Z-type
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0833—Improving access, e.g. for maintenance, steps for improving driver's access, handrails
Definitions
- the present invention relates to a wheel loader, and more particularly, to a wheel loader having a front vehicle body and a rear vehicle body that are connected to each other so as to be swingable in the left-right direction.
- Some wheel loaders have a vehicle body separated into a front vehicle body and a rear vehicle body, and these front and rear vehicle bodies are connected to swing and steer each other. Such a mechanism is called an articulate mechanism.
- Such an articulating mechanism locking device is disclosed, for example, in Japanese Utility Model Publication No. 1-339266 and Japanese Patent Application Laid-Open No. 61-81279.
- a wheel loader In general, a wheel loader is larger than a general vehicle and has a high vehicle height. For this reason, when inspecting and cleaning the parts (air conditioner filter, window glass) on the exterior of the operator's cab (cab, etc.), the parts are located at a height of 2 m or more from the ground, so work The person cannot inspect or clean while standing on the ground. Therefore, a stepladder or the like for the worker to move up and down is required. However, if a stepladder or the like is installed and removed every time work is performed, the labor of the worker becomes great.
- frame lock bar it is also conceivable to work on the articulation mechanism locking device (hereinafter referred to as frame lock bar), but when working with the frame lock bar locked, the frame lock bar is located on the inner side of the side of the cab. Therefore, the working posture is very bad, and when working without locking the frame lock bar, the frame lock bar rotates and is not stable.
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a wheel loader that can lock an articulate mechanism and that is easy to work at a high position and has high safety. .
- the wheel loader of the present invention includes a rear vehicle body, a cab, a front vehicle body, a bracket, a frame lock bar, a first fixing portion, a second fixing portion, and a fixing mechanism.
- the cab is mounted on the rear body.
- the front vehicle body is connected to the rear vehicle body so as to be swingable in the left-right direction.
- the bracket has a rotation support shaft on one of the front vehicle body and the rear vehicle body.
- One end of the frame lock bar rotates around the rotation support shaft and has a footrest.
- the first fixing portion is provided on one vehicle body having a bracket, and is for fixing the other end portion of the frame lock bar to the first.
- the second fixing portion is provided on the other vehicle body and is for fixing the other end of the frame lock bar to the second.
- the fixing mechanism is for fixing the frame lock bar at a predetermined rotation position between the first fixing portion and the second fixing portion.
- the footrest portion of the frame lock bar is located on the outer side from the cab side surface
- the rear vehicle body and the front vehicle body are fixed to each other and oscillated by secondly fixing the frame lock bar rotatably supported by one vehicle body to the other vehicle body. Can be prevented. Thereby, the so-called articulate mechanism can be locked.
- the operator can perform work such as inspection and cleaning on the frame lock bar at the predetermined rotation position, it is possible to work at a position where the height from the ground is high. Further, a stepladder or the like is not required when performing the above-described work. For this reason, it is not necessary to install and remove a stepladder or the like for each work, so that the labor of the operator can be reduced and the work becomes easy.
- the frame lock bar can be positioned at a predetermined rotational position between the first fixed part and the second fixed part. This prevents the frame lock bar from rotating at the rotation position during the work of the worker, so that the worker can safely work by putting his / her foot on the frame lock bar.
- the fixing mechanism has a first through hole provided in the bracket, a second through hole provided in the frame lock bar, and a pin inserted into the first through hole and the second through hole.
- the first distance between the center of the first through hole and the rotation center is equal to the second distance between the center of the second through hole and the rotation center.
- the fixing mechanism has a plunger provided on the frame lock bar and a plurality of V-shaped grooves provided on the bracket.
- the frame lock bar is fixed to the bracket by the pin at the predetermined rotation position and does not rotate, so that an operator can safely work with his / her feet on the frame lock bar.
- the frame lock bar can be positioned at a plurality of locations.
- the frame lock bar has a footrest portion wider than one end portion between one end portion and the other end portion. Thereby, the operator can place his / her feet on the frame lock bar stably.
- a portion having a second through hole is formed at one end so as not to protrude in the width direction from the footrest.
- the frame lock bar has a non-slip portion on the surface. This prevents the operator's feet from slipping on the frame lock bar even when the operator puts his / her foot on the frame lock bar for work, enabling the operator to work more safely. Become.
- the first through hole and the second through hole have the same diameter. Thereby, rattling is suppressed.
- an angle formed by the frame lock bar and a side surface of one vehicle body at a predetermined rotational position in a top view is 20 ° or more and 40 ° or less.
- the articulation mechanism can be locked by the frame lock bar, and an operator can work on the frame lock bar at a position where the height from the ground is high. It becomes possible to perform the operation and the operation becomes easy, and the operation can be performed safely by positioning the frame lock bar at a predetermined rotation position.
- FIG. 3 is a diagram showing a configuration of a frame lock bar and its vicinity in the wheel loader shown in FIGS. 1 and 2, and is a schematic perspective view showing a state in which the frame lock bar is positioned at a predetermined rotation position. It is a figure which shows the structure of the frame lock bar and its vicinity in the wheel loader shown in FIG. 1, FIG. 2, Comprising: It is a schematic perspective view which shows the state which has a frame lock bar in a storing position.
- FIG. 1A is an enlarged view of the structure of the frame lock bar in the wheel loader shown in FIG. 1 and FIG. 2
- FIG. 2B is an enlarged view of the structure of a bracket that rotatably supports the frame lock bar of FIG. B).
- FIGS. 1A is an enlarged view of the structure of the frame lock bar in the wheel loader shown in FIG. 1 and FIG. 2
- FIG. 2B is an enlarged view of the structure of a bracket that rotatably supports the frame lock bar of FIG. B).
- FIG. 4A and 4B are enlarged views showing the structure of the frame lock bar arranged so that the member in which the through hole 93a is formed does not protrude in the width direction from the footrest portion 81 of the frame lock bar; It is a figure (B) which expands and shows composition of a bracket which supports a frame lock bar so that rotation is possible. It is a schematic sectional drawing which shows the other example of the fixing mechanism which positions a frame lock bar in a predetermined rotation position. It is a structure of the wheel loader in Embodiment 2 of this invention, Comprising: It is a schematic perspective view which shows the structure of the bracket used for the fixing mechanism shown in FIG. FIG.
- FIG. 4 is a top view (A), a side view (B), and a cross-sectional view (X) along the line XC-XC schematically showing a configuration in which protrusions are provided as slip stoppers on the surface of the frame lock bar. .
- the wheel loader 1 of the present embodiment mainly includes a front vehicle body 2, a rear vehicle body 3, a work implement 4, a frame lock bar 8, and a fixing mechanism 9. is doing.
- a front wheel 6 a is attached to each of both sides of the front vehicle body 2, and a rear wheel 6 b is attached to each of both sides of the rear vehicle body 3.
- the front vehicle body 2 and the rear vehicle body 3 are swingably attached to the left and right (left and right as viewed from the driver seated on the driver's seat) by a center pin 71, and constitute an articulated structure. That is, the front vehicle body 2 and the rear vehicle body 3 are connected by a pair of left and right steering cylinders 72, 72, and the front vehicle body 2 and the rear vehicle body 3 are expanded and contracted by extending the left and right steering cylinders 72, 72.
- the center pin 71 is configured to swing left and right around the center pin 71 and steer.
- the work machine 4 is attached in front of the front vehicle body 2.
- the work machine 4 includes a boom 41 whose base end is swingably attached to the front vehicle body 2, and a bucket 42 swingably attached to the distal end of the boom 41.
- the front vehicle body 2 and the boom 41 are connected by a pair of boom cylinders 43 and 43, and the boom 41 is configured to swing by extending and contracting the boom cylinders 43 and 43.
- the work machine 4 includes a tilt arm 44 that is swingably supported by the boom 41 at a substantially central portion thereof, a bucket cylinder 45 that connects the base end portion of the tilt arm 44 and the front vehicle body 2, and a tilt arm. And a tilt rod 46 for connecting the tip end portion of 44 and the bucket 42.
- the bucket 42 is configured to swing.
- a cab (cab) 5 is attached to the front upper part of the rear vehicle body 3. On the side of the cab 5, for example, an inspection door 5a for inspecting an air conditioner outside air filter is provided. Further, a window glass 5 b is fitted in the window on the side surface of the cab 5.
- the frame lock bar 8 is configured to lock the articulate structure by fixing the front vehicle body 2 and the rear vehicle body 3 to each other to prevent swinging.
- the fixing mechanism 9 is configured so that the frame lock bar 8 can be positioned in a cantilevered state at a predetermined rotation position.
- the footrest portion 81 is positioned outward from the side surface of the cab 5.
- the side surface of the cab 5 is a side surface of the cab 5 at a portion where a door for a driver to get into the cab 5 is provided as shown by a one-dot chain line in FIG.
- the outside of the side surface of the cab 5 is the wheel (rear wheel 6 b) side with respect to the side surface of the cab 5.
- the frame lock bar 8 has a footrest portion 81 located at the center in the longitudinal direction, and one end portion 82 and the other end portion 83 located on both sides of the footrest portion 81. is doing.
- the width W1 of the footrest portion 81 is larger than the width W2 of the one end portion 82 and the width W3 of the other end portion 83.
- the one end portion 82 is provided with a through hole (not shown), and the other end portion 83 is provided with a through hole 8a.
- the one end 82 of the frame lock bar 8 is sandwiched between a pair of brackets 91 and 91 provided at the lower side of the rear vehicle body 3.
- Each of the pair of brackets 91, 91 has a through hole 91 a, and a pin (rotation support) is connected to the two through holes 91 a and a through hole (not shown) at one end of the frame lock bar 8.
- (Axis) 8b is inserted.
- the frame lock bar 8 is supported so as to be rotatable with respect to the rear vehicle body 3 with the pin 8b as a rotation center.
- the frame lock bar 8 is supported by the rear vehicle body 3 so as to be rotatable in a plane including front, rear, left and right of the wheel loader 1 around the axis of the pin 8 b extending in the vertical direction of the wheel loader 1.
- the fixing mechanism 9 has a portion 92 in which a through hole 92a is formed, a portion 93 in which a through hole 93a is formed, and a cylindrical pin 94.
- the portion 92 in which the through hole 92a is formed is provided on each side portion of the pair of brackets 91, 91.
- the portion 93 in which the through hole 93 a is formed is provided on the side portion of the one end portion 82 of the frame lock bar 8.
- Each of the through holes 92a and 93a has a circular shape, for example, and has a dimension (for example, a diameter) into which the pin 94 can be inserted.
- the through holes 92a and 93a have the same diameter. Further, the distance between the center of the through hole 93a and the rotation center (the axis of the pin 8b) is equal to the distance between the center of the through hole 92a and the rotation center (the axis of the pin 8b).
- the frame lock bar 8 When the frame lock bar 8 is at a predetermined rotation position, the through hole 92a and the through hole 93a are arranged in a straight line. For this reason, in this predetermined rotation position, it becomes possible to insert the same pin 94 into both the through hole 92a and the through hole 93a. Thereby, the frame lock bar 8 can be fixed so as not to rotate with respect to the rear vehicle body 3.
- the angle ⁇ formed by the frame lock bar 8 and the side surface of the rear vehicle body 3 at the predetermined rotation position in a top view is 20 ° or more and 40 ° or less. It is preferable that it is 30 °, and more preferably 30 °.
- a bracket 3 a is provided at the lower side of the rear vehicle body 3.
- the bracket 3a is for fixing the other end 83 of the frame lock bar 8 to the rear vehicle body 3 when the frame lock bar 8 is in a storage position to be described later.
- a through hole 3a 1 is formed in the bracket 3a.
- a pair of brackets 2 a and 2 a are provided at the lower side of the front vehicle body 2.
- the pair of brackets 2a and 2a are for fixing the other end 83 of the frame lock bar 8 to the front vehicle body 2 when the frame lock bar 8 is in a fixing position described later.
- a through hole 2a 1 is formed in each of the pair of brackets 2a, 2a.
- the other end 83 of frame lock bar 8 is fixed to bracket 3 a provided on rear vehicle body 3. This fixing is performed by aligning the positions of the through hole 8a at the other end 83 of the frame lock bar 8 and the through hole 3a 1 of the bracket 3a and inserting the same pin 94 into both the through holes 8a and 3a 1. It is done.
- the frame lock bar 8 is in this storage position.
- the other end 83 of frame lock bar 8 is sandwiched and fixed by a pair of brackets 2 a provided on front vehicle body 2.
- This fixing is performed by aligning the positions of the through holes 8a at the other end 83 of the frame lock bar 8 and the respective through holes 2a 1 of the pair of brackets 2a so that both the through holes 8a and 2a 1 have the same pin 94. Is done by inserting
- the frame lock bar 8 When locking the articulate structure of the wheel loader 1, the frame lock bar 8 is in this fixed position. That is, the frame lock bar 8 is in this fixed position when the articulated structure needs to be locked, for example, when the vehicle is transported while the engine is operating or when the inside of the vehicle body is maintained.
- the frame lock bar 8 is supported by the rear vehicle body 3 so as to be rotatable between the storage position (FIG. 4) and the fixed position (FIG. 5).
- the frame lock bar 8 can be positioned by the fixing mechanism 9 at a predetermined rotation position between the storage position (FIG. 4) and the fixing position (FIG. 5).
- the frame lock bar 8 can be positioned so as not to rotate with respect to the rear vehicle body 3.
- the other end 83 of the frame lock bar 8 is a free end, and the frame lock bar 8 is in a cantilever state.
- the frame lock bar 8 When the operator does not need to lock the articulate structure (for example, when the engine is not operated), a place with a high ground level between the front vehicle body 2 and the rear vehicle body 3 (for example, the inspection in FIG. 1) When it is desired to check or clean the air conditioner outside air filter in the door 5a and the window glass 5b) of the cab 5, the frame lock bar 8 is set to the predetermined rotation position. An operator can check and clean a high place by getting on the frame lock bar 8.
- the frame lock bar 8 can be held in a state slightly separated from the front vehicle body 2 as shown by a broken line in FIG. For this reason, even when an operator puts his / her foot on the frame lock bar 8 to work, the front body 2 and the rear body 3 are not attached to the front body body 2 and are not tilted rearward. Can be performed.
- the transition between the storage position, the fixed position, and the determined predetermined rotation position can be performed by pulling out the pin 94 from each through hole. That is, by pulling out the pins 94 from the respective through holes, the frame lock bar 8 is released from being fixed and can be rotated around the pins 8b, so that it is possible to shift to each state.
- the pin 94 used in each of the storage position, the fixed position, and the predetermined rotation position that is positioned may be the same. Thereby, since the pin 94 is used in any state, the pin 94 can be prevented from being lost.
- a portion 93 having a through hole 93a provided at one end portion 82 of the frame lock bar 8 is a footrest portion. It may be formed to protrude in the width direction from 81. That is, the portion 93 having the through hole 93a may protrude in the width direction from the virtual extension line L1 on the side portion of the footrest portion 81.
- the operator may catch his / her foot on the portion 93 having the through hole 93a.
- the part 93 which has the through-hole 93a is formed so that it may not protrude from the footrest part 81 in the width direction. That is, it is preferable that the portion 93 having the through hole 93a does not protrude in the width direction from the virtual extension line L1 on the side portion of the footrest portion 81. Thereby, an operator can reduce possibility of hooking a leg on the part 93 which has the through-hole 93a.
- the wheel loader 1 of the present embodiment is generally used for excavation work and loading work.
- the boom 41 shown in FIGS. 1 and 2 is lowered, the wheel loader 1 moves forward with the bucket 42 facing the front, and the blade edge of the bucket 42 eventually plunges into the object.
- the bucket cylinder 45 to tilt back the bucket 42, the object can be scooped into the bucket 42.
- the boom cylinder 43 When carrying out the loading operation, the boom cylinder 43 is extended with the object scooped into the bucket 42 to raise the boom 41, and the wheel loader 1 moves backward with the bucket 42 raised. Thereafter, the wheel loader 1 is moved forward to approach the dump truck, approaches the bucket cylinder 45 at a predetermined position, dumps the bucket 42, and loads the object onto the dump truck bed.
- the rear vehicle body 3 and the front vehicle body 2 are fixed to each other by attaching the frame lock bar 8 rotatably supported by the rear vehicle body 3 to the front vehicle body 2. Swinging can be prevented. Thereby, the so-called articulate mechanism can be locked.
- the frame lock bar 8 can be positioned at a predetermined rotation position (FIG. 3) between the storage position (FIG. 4) and the fixed position (FIG. 5). As a result, the frame lock bar 8 is not positioned and rotated at the above-mentioned rotation position, so that the worker can get on the frame lock bar 8 and perform work safely.
- the frame lock bar 8 by setting the predetermined rotation position, the frame lock bar 8 is separated from the front vehicle body 2 as shown by a broken line in FIG. 2 (in a top view shown in FIG. 2). It can be held in a cantilevered state with the footrest 81 positioned outward from the side surface of the cab 5. For this reason, even when the operator puts his / her foot on the frame lock bar 8 and works, the worker does not stick to the front vehicle body 2 and the rear vehicle body 3 and does not lean backward. It is possible to inspect and clean high places. Therefore, workability is improved and safety is improved.
- the portion 93 having the through-hole 93 a does not protrude in the width direction from the footrest portion 81, so that the operator's foot is restrained from being caught by the portion 93, so that the worker can be safer Work can be done.
- the frame lock bar 8 has a non-slip portion on the surface, the operator's feet can slip on the frame lock bar 8 even when the operator puts his / her feet on the frame lock bar 8 for work. This prevents the worker from working safely.
- the anti-slip portion may be formed at least on the footrest portion 81 of the frame lock bar 8, and may be provided on the surfaces of the one end portion 82 and the other end portion 83 other than the footrest portion 81.
- the frame lock bar 8 rotates at one end to the front vehicle body 2.
- the rear vehicle body 3 and the front vehicle body 2 may be fixed to each other to prevent swinging by being supported in a possible manner and attaching the other end to the rear vehicle body 3.
- the fixing mechanism 9 may have a configuration having, for example, a plunger and a V-shaped groove as shown in FIG.
- the plunger in the present embodiment includes a spring 95 and a hard sphere 96. That is, the fixing mechanism 9 may be configured to be positioned by pressing the rigid sphere 96 against the V-shaped groove 91b by the spring 95.
- a hole is provided in the frame lock bar 8
- a spring 95 is disposed in the hole. The spring 95 presses the hard sphere 96 toward the surface of the bracket 91.
- a V-shaped groove 91 b is provided on the surface of the bracket 91.
- a plurality of V-shaped grooves 91 b may be provided on the surface of the bracket 91.
- the frame lock bar 8 can be positioned at a plurality of rotation positions.
- a rod may be used instead of a hard sphere.
- the frame lock bar 8 preferably has a non-slip portion on the surface.
- a non-slip portion sandpaper, a plurality of protrusions 84 (see FIGS. 10A, 10B, and 10C), a plurality of holes, or any combination thereof can be considered.
- the present invention can be advantageously applied to a wheel loader having a front vehicle body and a rear vehicle body that are connected to each other so as to be swingable in the left-right direction.
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Abstract
Description
(実施の形態1)
まず本発明の実施の形態1におけるホイールローダの構成について図1および図2を用いて説明する。
本実施の形態のホイールローダ1によれば、後部車体3に回動可能に支持されているフレームロックバー8を前部車体2に取付けることで後部車体3および前部車体2を相互に固定して揺動を防止することができる。これにより、いわゆるアーティキュレート機構のロックが可能となる。
また上記の実施の形態1においては、固定機構9が貫通孔92a、93a内にピン94を挿入する構成を有する場合について説明したが、固定機構9は、フレームロックバー8を所定の回動位置で位置決めできる構成であれば如何なる構成であってもよい。
また上記の実施の形態1および2のいずれにおいても、フレームロックバー8は表面に滑り止め部を有していることが好ましい。この滑り止め部としては、サンドペーパ、複数の突起84(図10(A)、(B)、(C)参照)、複数の孔、またはこれらの任意の組み合わせなどが考えられる。
Claims (8)
- 後部車体と、
前記後部車体に搭載されるキャブと、
前記後部車体に対して左右方向に揺動可能に連結された前部車体と、
前記前部車体および前記後部車体のいずれか一方の車体に回動支軸を有するブラケットと、
前記回動支軸を中心に一端部が回動し、足乗せ部を有するフレームロックバーと、
前記ブラケットを有する前記一方の車体に設けられ、前記フレームロックバーの他端部を第1固定する第1固定部と、
他方の車体に設けられ、前記フレームロックバーの前記他端部を第2固定する第2固定部と、
前記第1固定部と前記第2固定部の間の所定の回動位置で前記フレームロックバーを固定する固定機構とを備え、
上面視で前記キャブ側面から外側に前記フレームロックバーの前記足乗せ部が位置することを特徴とする、ホイールローダ。 - 前記固定機構は、
前記ブラケットに設けられた第1貫通孔と、
前記フレームロックバーに設けられた第2貫通孔と、
前記第1貫通孔と前記第2貫通孔に挿入するピンとを有し、
前記第1貫通孔の中心と回動中心との第1距離と、前記第2貫通孔の中心と回動中心との第2距離とが等しい、請求項1に記載のホイールローダ。 - 前記固定機構は、
前記フレームロックバーに設けられたプランジャと、
前記ブラケットに設けられた複数のV字溝とを有する、請求項1に記載のホイールローダ。 - 前記フレームロックバーは、前記一端部と前記他端部との間に、前記一端部よりも幅の広い前記足乗せ部を有している、請求項1~3のいずれかに記載のホイールローダ。
- 前記一端部には、前記足乗せ部よりも幅方向に突出しないように前記第2貫通孔を有する部分が形成されている、請求項2に記載のホイールローダ。
- 前記フレームロックバーは表面に滑り止め部を有している、請求項1~5のいずれかに記載のホイールローダ。
- 前記第1貫通孔と前記第2貫通孔は同径である、請求項2に記載のホイールローダ。
- 上面視において前記所定の回動位置における前記フレームロックバーと前記一方の車体の側面とのなす角度が20°以上40°以下である、請求項1~7のいずれかに記載のホイールローダ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12753657.1A EP2682530B1 (en) | 2011-08-08 | 2012-05-10 | Wheel loader |
CN201280000996.5A CN103052753B (zh) | 2011-08-08 | 2012-05-10 | 轮式装载机 |
US13/634,001 US8950774B2 (en) | 2011-08-08 | 2012-05-10 | Wheel loader |
JP2012529052A JP5068397B1 (ja) | 2011-08-08 | 2012-05-10 | ホイールローダ |
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JP2011172810 | 2011-08-08 | ||
JP2011-172810 | 2011-08-08 |
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WO2013021700A1 true WO2013021700A1 (ja) | 2013-02-14 |
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PCT/JP2012/062001 WO2013021700A1 (ja) | 2011-08-08 | 2012-05-10 | ホイールローダ |
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US (1) | US8950774B2 (ja) |
EP (1) | EP2682530B1 (ja) |
CN (1) | CN103052753B (ja) |
WO (1) | WO2013021700A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9181678B2 (en) * | 2012-03-09 | 2015-11-10 | Komatsu Ltd. | Backhoe loader |
CN103498492B (zh) * | 2013-09-03 | 2015-08-12 | 龙工(上海)机械制造有限公司 | 一种轮式装载机车架锁定结构 |
EP3258017B1 (en) * | 2015-10-30 | 2020-09-02 | Komatsu Ltd. | Work vehicle with rotatable console box |
WO2017164786A1 (en) | 2016-03-24 | 2017-09-28 | Volvo Construction Equipment Ab | A wheel loader front unit and a wheel loader |
US10161106B2 (en) * | 2016-12-28 | 2018-12-25 | Cnh Industrial America Llc | Platform assembly for a ground engaging tool |
CN108118641A (zh) * | 2018-01-30 | 2018-06-05 | 江苏天普星环境科技有限公司 | 一种清扫车铰接式车身锁定机构 |
CN110565728B (zh) * | 2019-09-29 | 2024-04-30 | 徐工集团工程机械股份有限公司科技分公司 | 一种装载机及其集成式铰接机构 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6181279A (ja) | 1984-09-28 | 1986-04-24 | Yanmar Diesel Engine Co Ltd | 作業車両の前・後部車体連結構造 |
JPS6439266A (en) | 1987-08-03 | 1989-02-09 | Fanuc Ltd | Switching regulator |
JPH0522264U (ja) * | 1991-09-02 | 1993-03-23 | 日立建機株式会社 | 車体屈折式車両 |
JPH09220979A (ja) * | 1996-02-20 | 1997-08-26 | Kato Works Co Ltd | 作業車両における乗降用ステップ装置 |
JP2001278133A (ja) * | 2000-03-31 | 2001-10-10 | Tcm Corp | 安全リンクを備えた産業用車両 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3370730A (en) * | 1963-10-01 | 1968-02-27 | Mixermobile Manufacturers Inc | Articulated vehicle |
US3253671A (en) * | 1964-01-27 | 1966-05-31 | Mixermobile Manufacturers Inc | Close-coupled articulated vehicle |
US3663039A (en) * | 1969-10-24 | 1972-05-16 | M M & W Inc | Converter lock bar |
US3612575A (en) * | 1970-01-16 | 1971-10-12 | Jack B Stewart | Trailer backing guide |
US3778174A (en) * | 1970-12-03 | 1973-12-11 | Le Tourneau R G Inc | Adjustable self-aligning pivot bearing, and ball pin and socket employing same |
US3815939A (en) * | 1972-08-21 | 1974-06-11 | C Pettay | Hitch positioner |
US3912300A (en) * | 1974-08-12 | 1975-10-14 | Jr John F Bryan | Articulated joint for articulated vehicles |
US4116459A (en) * | 1976-12-30 | 1978-09-26 | Allis-Chalmers Corporation | Safety lock for articulated joint on vehicle |
US4215874A (en) * | 1978-12-18 | 1980-08-05 | J. I. Case Company | Articulation lock |
US4281848A (en) * | 1979-10-11 | 1981-08-04 | J. I. Case Company | Joint for articulated vehicles |
SE8204262L (sv) * | 1982-07-09 | 1984-01-10 | Hudiksvall Mekaniska Verkstad | Anordning vid sa kallade midjestyrda fordon |
US4471850A (en) * | 1983-03-25 | 1984-09-18 | Ingersoll-Rand Company | Articulated vehicle |
JPS60111784U (ja) | 1983-12-30 | 1985-07-29 | ヤンマーディーゼル株式会社 | 作業車両のア−テイキユレ−トロツク装置 |
US4603876A (en) * | 1984-12-31 | 1986-08-05 | Gray Paul E | Trailer convertor assembly |
US4936737A (en) * | 1988-08-26 | 1990-06-26 | Deere & Company | Loader mounting system |
JPH0416052A (ja) | 1990-05-09 | 1992-01-21 | Ricoh Co Ltd | ファクシミリ装置 |
JPH0626450Y2 (ja) | 1990-05-28 | 1994-07-20 | 日本車輌製造株式会社 | クローラ式走行体の乗降用ステップ装置 |
US5180028A (en) * | 1991-01-07 | 1993-01-19 | Perrenoud Jr Stephen A | Tractor implement orientation system |
JP2004068290A (ja) | 2002-08-01 | 2004-03-04 | Komatsu Ltd | スイング式油圧ショベル |
CN2793166Y (zh) | 2005-05-18 | 2006-07-05 | 鞍山海虹工程机械有限公司 | 轮式装载机的铰接装置 |
DE102007023568B3 (de) | 2007-05-21 | 2008-12-11 | Komatsu Ltd. | Bedienpersonsitz für eine Baumaschine und damit versehene Kabine und Baumaschine |
CN201232205Y (zh) | 2008-07-21 | 2009-05-06 | 荆建新 | 小型机械轮式装载机 |
-
2012
- 2012-05-10 WO PCT/JP2012/062001 patent/WO2013021700A1/ja active Application Filing
- 2012-05-10 EP EP12753657.1A patent/EP2682530B1/en not_active Not-in-force
- 2012-05-10 US US13/634,001 patent/US8950774B2/en not_active Expired - Fee Related
- 2012-05-10 CN CN201280000996.5A patent/CN103052753B/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6181279A (ja) | 1984-09-28 | 1986-04-24 | Yanmar Diesel Engine Co Ltd | 作業車両の前・後部車体連結構造 |
JPS6439266A (en) | 1987-08-03 | 1989-02-09 | Fanuc Ltd | Switching regulator |
JPH0522264U (ja) * | 1991-09-02 | 1993-03-23 | 日立建機株式会社 | 車体屈折式車両 |
JPH09220979A (ja) * | 1996-02-20 | 1997-08-26 | Kato Works Co Ltd | 作業車両における乗降用ステップ装置 |
JP2001278133A (ja) * | 2000-03-31 | 2001-10-10 | Tcm Corp | 安全リンクを備えた産業用車両 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2682530A4 * |
Also Published As
Publication number | Publication date |
---|---|
US20140217700A1 (en) | 2014-08-07 |
EP2682530A4 (en) | 2014-06-25 |
CN103052753B (zh) | 2014-05-21 |
US8950774B2 (en) | 2015-02-10 |
CN103052753A (zh) | 2013-04-17 |
EP2682530A1 (en) | 2014-01-08 |
EP2682530B1 (en) | 2015-03-04 |
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