CN101466567A - Operating level structure - Google Patents

Abstract

To provide an operation link structure enabling an increase in working efficiency during the assembly and maintenance. The operation link structure comprises a first operation link mechanism supported on a first unit having a transmission mechanism and a transmission housing for storing the transmission mechanism in the state that the first operation link mechanism is connected to the switchover operation part of the transmission mechanism; and a second operation link mechanism supported on a second unit having a manual operation member in the state that the second operation link mechanism is connected to the manual operation member. The first and second operation link mechanisms are detachably connected to each other while being supported on their corresponding first and second units.

Description

Operating level structure

Technical field

The present invention relates to be applied to the operating level structure of engineering trucks such as tractor truck.

Background technology

Application in question connecting rod mechanism widely in engineering trucks such as tractor truck, described control link mechanism, near the manual handling members such as joystick that are configured in the operator's seat are connected on the transmission devices such as forward-reverse switching mechanism between the drive path of efferent such as from drive source to drive axle or speed-changing mechanism in linkage via connecting rod mechanism, aforementioned transmission device is become corresponding to carrying out manually-operated drive state to aforementioned manual handling member.

But, the operating level structure in past, the operating efficiency during for when assembling and maintenance etc. is not considered fully.

Promptly, for example, in Ji Zai the patent documentation 1, put down in writing a kind of operating level structure that is equipped with connecting rod mechanism below, actuating spindle and handle part that described connecting rod mechanism will be supported on the HST of change speed gear box connect to the outstanding gear-change hand lever in side in linkage from gauge panel.

But in this existing operating level structure, the various link components that aforementioned linkage just will constitute this connecting rod mechanism tandem simply couple together.

Thereby the Steering gear that will not be configured in aforementioned change speed gear box or the aforementioned gauge panel is arranged in the vehicle body, just can not carry out the assembling of aforementioned linkage.Exist the inefficient problem of assembling operation of vehicle.

And then, when maintenance, aforementioned linkage is not decomposed the level of each link component, just aforementioned change speed gear box can not be separated the also poor problem of operating efficiency when existing maintenance from vehicle body.

Patent documentation 1: the spy opens the 2002-160545 communique

Summary of the invention

The present invention, in view of aforementioned prior art, an one purpose provides a kind of operating level structure of the operating efficiency can improve when assembling and maintenance the time, this structure is a kind of operating level structure that transmission device and manual handling member are connected in linkage, wherein, described transmission device can change from the drive state of drive source to efferent, and described manual handling member is used to handle aforementioned transmission device.

In order to achieve the above object, the present invention is a kind of operating level structure, described operating level structure can change from drive source to the transmission device of the drive state of efferent and the manual handling member that is used to handle aforementioned transmission device connect in linkage, be applicable to engineering truck, this structure comprises the first control link mechanism and the second control link mechanism, the described first control link mechanism, under the state that is connected on the switching manoeuvre portion of aforementioned transmission device, be supported on the transmission gearbox that comprises this transmission device and hold this transmission device in interior first module, the described second control link mechanism, under the state that is connected on the aforementioned manual handling member, be supported on and comprise this manual handling member in interior Unit second, aforementioned first and second control link mechanism, being supported under the state of cooresponding aforementioned unit, can connect removably mutually.

According to the present invention of such formation, can improve the assembling operation efficient and the maintenance activity efficient of engineering truck

Preferably, the aforementioned first control link mechanism has first connecting rod side control lever shaft, described first connecting rod side control lever shaft is can be along descend direction to dispose haply under the state of axis rotation, the aforementioned second control link mechanism has second connecting rod side control lever shaft, this second connecting rod side control lever shaft is according to the manual handling to aforementioned manual handling member, around the axis rotation, under the state of the upper end subtend of its bottom and aforementioned first connecting rod side control lever shaft, can not relatively rotate and can connect removably around axis with respect to described first connecting rod side control lever shaft.

In a kind of form of implementation, with aforementioned first module as gear unit, this gear unit comprises: the forward-reverse switching mechanism that works as aforementioned transmission device, the speed-changing mechanism that works as other transmission device, the aforementioned transmission gearbox that holds aforementioned forward-reverse switching mechanism and aforementioned speed-changing mechanism, and, as engine unit, this engine unit comprises with aforementioned Unit second: the driving engine that works as aforementioned drive source; The turning part that comprises Steering gear, steering shaft and bearing circle; Comprise around the gauge panel portion of the gauge panel main body of aforementioned Steering gear; The joystick portion that comprises the forward-reverse changer lever that works as aforementioned manual handling member; The controlled pedal portion that comprises brake pedal; The Fuel Tank portion that comprises the Fuel Tank of the fuel source that becomes aforementioned driving engine.

Preferably, aforementioned first connecting rod side control lever shaft by be arranged on the aforementioned transmission gearbox first connecting rod side bearing member directly or indirectly, can center on the axis free rotary ground supporting, and aforementioned second connecting rod side control lever shaft can center on the axis free rotary ground supporting directly or indirectly by the second connecting rod side bearing member that is arranged on the aforementioned Steering gear.

In aforementioned first and second unit in vehicle fore-and-aft direction bonded assembly form, by aforementioned first and second unit is relatively moved along the vehicle fore-and-aft direction, aforementioned first and second connecting rod side control lever shaft can be in each other axis and be positioned at axis on the same axle state consistent with each other and the released state of axis runout each other.

According to such structure, can easily carry out the connection operation and the detached job of aforementioned first and second control link mechanism.

More preferably, the bottom of the upper end of aforementioned first connecting rod side control lever shaft and aforementioned second connecting rod side control lever shaft, when the corresponding to state of aforementioned axis, in lateral plan, overlap mutually, by utilizing clamp structure that the part of aforementioned overlapping is coupled together, can be with aforementioned first and second connecting rod side control lever shaft not connecting around the counterrotating mode of axis.

According to such structure, can more easily carry out the connection operation and the detached job of aforementioned first and second control link mechanism.

For example, the concavity member is set on one in the bottom of the upper end of aforementioned first connecting rod side control lever shaft and aforementioned second connecting rod side control lever shaft, this concavity member has a pair of back plate of the mutual subtend of offering via along continuous straight runs of slit.And, on another in the bottom of the upper end of aforementioned first connecting rod side control lever shaft and aforementioned second connecting rod side control lever shaft the convex member being set, this convex member is configured between the aforementioned a pair of back plate via aforementioned slots.By utilizing aforementioned clamp structure that aforementioned convex member and aforementioned concavity member are coupled together, aforementioned first and second connecting rod side control lever shaft is connected can not center on the counterrotating mode of axis.

According to such structure, make that the connection operation and the detached job of aforementioned first and second operator link mechanism are easy, simultaneously, can make the action stabilization of aforementioned first and second control link mechanism under the coupled condition.

Aforementioned transmission device can take with from aforementioned drive source under the situation of the open circuited neutral condition of power transmission of aforementioned efferent, preferably, when the center position that aforementioned manual handling member is positioned at make aforementioned transmission device be in neutral condition, aforementioned slots is towards the fore-and-aft direction of vehicle.

According to such structure, can carry out the connection operation and the detached job of aforementioned first and second control link mechanism more simply.

Aforementioned gauge panel main body can be bearing on the gauge panel pillar that is connected on the aforementioned driving engine.In this form, preferably, aforementioned first and second connecting rod side control lever shaft is above the upper surface of aforementioned transmission gearbox and below aforementioned gauge panel pillar and aforementioned gauge panel main body, can reach approaching position from vehicle side, can connect by aforementioned clamp structure.

Connecting removably via clamp structure can be around the first connecting rod side bearing member and the gauge panel pillar that is provided in aforementioned Unit second of the aforementioned first connecting rod side of axis free rotary ground supporting control lever shaft, according to this structure, can make the stable postureization of aforementioned first connecting rod side bearing member and aforementioned gauge panel pillar.

Aforementioned first connecting rod side bearing member can have: comprise the base plate on the upper surface that is fixed on aforementioned transmission gearbox and the pair of side plates of extending upward from this base plate at interior main part; Be positioned at the front side of aforementioned body portion, by the bearing portion of this main part supporting.In this form, preferably, aforementioned pair of side plates is connected on the pair of side plates on the aforementioned gauge panel pillar removably via clamp structure respectively.

Description of drawings

Fig. 1 is the left side view of application according to the tractor truck of a form of implementation of operating level structure of the present invention.

Fig. 2 is the right side view of tractor truck shown in Figure 1.

Fig. 3 is the vertical profile lateral plan of the driving section in the tractor truck of Figure 1 and Figure 2.

Fig. 4 is the decomposition diagram of the tractor truck of Figure 1 and Figure 2.

Fig. 5 is the transparent view of the engine unit from the observed aforementioned tractor truck in left back, the state that gauge panel portion is unloaded in expression.

Fig. 6 is the transparent view from the observed aforementioned engine unit in right abaft, the state that gauge panel portion is unloaded in expression.

Fig. 7 is the part enlarged perspective of aforementioned engine unit.

Fig. 8 is near the enlarged perspective the gauge panel pillar in the aforementioned engine unit, and the state of aforementioned gauge panel portion is unloaded in expression.

Fig. 9 is near the right side enlarged side view of the amplification of the operator's seat in the aforementioned tractor truck.

Figure 10 is the scheme drawing that is provided to the throttle gate control link mechanism in the aforementioned tractor truck.

Figure 11 is the XI-XI line cutaway view among Figure 10.

Figure 12 is the rear perspective view of the forward unit in the aforementioned tractor truck.

Figure 13 is the cutaway view along the XIII-XIII line of Fig. 3.

Figure 14 is the left transparent view that connects the assembly that aforementioned engine unit and gear unit form, in order clearly to represent aforementioned operating level structure, the state of a part of member of expression deletion.

Figure 15 is the right transparent view that connects the assembly that aforementioned engine unit and aforementioned gear unit form, in order clearly to represent aforementioned operating level structure, the state of a part of member of expression deletion.

Figure 16 is the front elevation of aforementioned operating level structure.

Figure 17 is the transparent view of aforementioned operating level structure.

Figure 18 is near the transparent view of first connecting rod side first control lever shaft in the aforementioned operating level structure.

Figure 19 is the left side view that connects the assembly that aforementioned engine unit and aforementioned gear unit form.

Figure 20 is near the transparent view of second connecting rod side bearing member in the aforementioned operating level structure.

Figure 21 is the cutaway view of the bindiny mechanism in the aforementioned operating level structure, and expression is along the section of the axis of aforementioned second connecting rod side control lever shaft.

Figure 22 is the left side view that makes the state of aforementioned engine unit and the separation of aforementioned gear unit.

Nomenclature:

1 tractor truck, U1 gear unit (first module), U2 engine unit (Unit second), 10 driving engines, 100 gauge panel pillars, 110 turning parts, 112 Steering gears, 113 steering shafts, 114 bearing circle, 120 gauge panel portions, 121 gauge panel main bodys, 130 joystick portions, 131 forward-reverses switch control member (forward-reverse changer lever), 150 operating pedal portions, 155 pedal of clutchs, the 158L left hand brake pedal, the 158R right hand brake pedal, 180 Fuel Tank portions, 182 Fuel Tanks, 220 forward-reverse switching mechanisms, 235 control arms (the blocked operation portion of forward-reverse switching mechanism), 240 speed-changing mechanisms, 290 transmission gearboxs, 500 operating level structures, 510 first control link mechanisms, 511 first connecting rod sides, first control lever shaft, 530 first connecting rod sides, first supporting member, 531 main parts, 535 bearing portions, 540 pins, 541 concavity members, 542 back plates, 543 slits, 545 convex members, 550 second control link mechanisms, 551 second connecting rod side control lever shafts, 560 second connecting rod side bearing members

The specific embodiment

Below, with reference to the preferred implementing form of description of drawings according to operating level structure of the present invention.

Fig. 1 and Fig. 2 are respectively left side view and the right side view of application according to the tractor truck 1 of the operating level structure of this form of implementation.

Aforementioned tractor truck 1 is given efferent 30 via the transmission of power that driving section 20 will come from drive source 10.

In this form of implementation, aforementioned tractor truck 1 has as the drive axle 31 of aforementioned efferent 30 and PTO axle (not shown).

Thereby this power when drive axle 31 transmission come from the power of aforementioned drive source 10, is also transmitted to aforementioned PTO axle in aforementioned driving section 20.

Fig. 3 represents the vertical profile lateral plan of aforementioned driving section 20.

In more detail, as shown in Figure 3, aforementioned driving section 20 is equipped with: to aforementioned drive axle 31 transmit the driving system transmission device 210 of the power that comes from aforementioned drive source 10, come to the transmission of aforementioned PTO axle the power of aforementioned drive source 10 PTO system transmission device 280, hold the transmission gearbox 290 of aforementioned driving system transmission device 210 and aforementioned PTO system transmission device 280.

In addition, in this form of implementation, aforementioned driving section 20, the upstream side in the transmission direction of aforementioned driving system transmission device 210 and aforementioned PTO system transmission device 280 further is equipped with clutch mechanism 200.

Aforementioned clutch mechanism 200 comprises: with aforementioned drive source 10 action bonded assembly clutch bodies 201, with the outgoing side action bonded assembly imput shaft 202 of aforementioned clutch body 201.

Aforementioned clutch body 201 is connected on the aforementioned drive source 10 via flywheel 15 actions, operation according to being provided near the following pedal of clutch 155 the operator's seat can connect or disconnect the transmission of power that carries out to aforementioned imput shaft 202 from aforementioned drive source 10.

Aforementioned driving system transmission device 210 and aforementioned PTO system transmission device 280 as shown in Figure 3, connect side by side with respect to aforementioned imput shaft 202.

In more detail, aforementioned driving system transmission device 210 is equipped with: with aforementioned imput shaft 202 action bonded assembly forward-reverse switching mechanisms 220, with aforementioned forward-reverse switching mechanism 220 action bonded assembly main speed-changing mechanisms 240, will come from the box of tricks (not shown) that a pair of to the left and right main drive axle of rotary power of aforementioned main speed-changing mechanism 240 is transmitted differentially.

In addition, according to different specifications, can between aforementioned main speed-changing mechanism and aforementioned differential gear train, be equipped with secondary speed-changing mechanism.

Aforementioned forward-reverse switching mechanism 220 is equipped with: action is connected to the axle drive shaft 221 on the aforementioned imput shaft 202, the driven shaft 222 that disposes abreast with aforementioned axle drive shaft 221 roughly, be bearing in the gear cluster 223F that just migrates on aforementioned axle drive shaft 221 and the aforementioned driven shaft 222, be bearing in the counter-rotating gear cluster 223R on aforementioned axle drive shaft 221 and the aforementioned driven shaft 222, and forward-reverse switches gearshift 224, described switching gearshift 224 can be in the positive transposition that aforementioned driven shaft 222 is rotated in the forward via the aforementioned gear cluster 223F that just migrating and put according to peripheral operation, perhaps make the backward position of aforementioned driven shaft 222 contrarotations with gear cluster 223R via aforementioned counter-rotating.

Aforementioned forward-reverse switches gearshift 224, except aforementioned positive transposition put and aforementioned backward position, also can be in from aforementioned axle drive shaft 221 to the open circuited center position of the transmission of power of aforementioned driven shaft 222.

Aforementioned forward-reverse switches gearshift 224, switch steering unit 230 and forward-reverse switching control link mechanism 500 via the forward-reverse of describing later, action is connected to and is provided near can the switching on the control member 131 by manned forward-reverse of operator's seat, the manual operation that response is switched control member 131 to this forward-reverse, aforementioned gearshift 224 can select that aforementioned positive transposition is put, aforementioned center position or aforementioned backward position.

Aforementioned main speed-changing mechanism 240 can carry out multi-change speed with the rotation of aforementioned driven shaft 222, to follow-up aforementioned differential gear train transmission.

Specifically, as shown in Figure 3, aforementioned main transformer quick-mounting is put 240 and is equipped with: primary input axle 241, and the main output shaft 242 of aforementioned primary input axle 241 almost parallel ground configuration, carry out the change gear transmission 250 of multi-change speed between aforementioned primary input axle 241 and aforementioned main output shaft 242.

In this form of implementation, aforementioned primary input axle 241 is connected on the aforementioned driven shaft 222 via gear cluster 245 actions.

Aforesaid gears transmission system 250 is equipped with: be bearing in a plurality of main group 251a～251d on aforementioned primary input axle 241 and the aforementioned main output shaft 242, via any one gear cluster among aforementioned main group 251a～251d aforementioned main output shaft 242 actions be connected to main transformer quick change blocking means 255a～255c on the aforementioned primary input axle 241.

In addition, in this form of implementation, aforesaid gears transmission system 250 except that the gear that makes the rotation of aforementioned main output shaft 242 speed changes via aforementioned main group 251a～255e, also has aforementioned main output shaft 242 is directly connected to gear on the aforementioned driven shaft 222.

That is, aforementioned main output shaft 242 rotates freely around axis on the axle identical with aforementioned driven shaft 222.

And aforementioned main transformer quick change blocking means 255a can be in via cooresponding aforementioned main group 251a the rotation of aforementioned primary input axle 241 is passed to the state of aforementioned main output shaft 242 and aforementioned main output shaft 242 is directly connected to state on the aforementioned driven shaft 222.

In addition, aforementioned main transformer quick change blocking means 255a～255c, via main transformer speed steering unit 260, action is connected to and is provided near the main shift lever 265 of aforementioned operator's seat (with reference to following Fig. 4).

Aforementioned modified roll mechanism can pass to the rotary power that comes from aforementioned main output shaft 242 pair of right and left master drive axle 31 differentially.

In addition, pair of right and left stop mechanism (not shown) is equipped with between aforementioned differential gear train and aforementioned a pair of main drive axle 31.

Aforementioned a pair of stop mechanism, via suitable connecting rod mechanism, action is connected to and is configured on brake pedal 158L, the 158R that near the pair of right and left the operator's seat describes below.

According to different specifications, on aforementioned driving system modified roll mechanism 210, can further be equipped with secondary drive axle output mechanism (not shown) to secondary drive axle (for example, front axle 32 (with reference to Fig. 1 and Fig. 2)) outputting rotary power.

The aforementioned auxiliary drive axle can be equipped with output mechanism: secondary drive axle connects or disconnects from aforementioned main output shaft 242 to the transmission of power of aforementioned auxiliary drive axle with output shaft according to peripheral operation with output shaft and power-transfer clutch, described power-transfer clutch.

Aforementioned PTO system transmission device 280 can be equipped with action to be connected to PTO transmission shaft 281 on the aforementioned imput shaft 202, to be inserted into PTO clutch mechanism (not shown) and PTO speed-changing mechanism (not shown) between aforementioned PTO transmission shaft 281 and the aforementioned PTO axle.

Aforementioned PTO clutch mechanism can optionally connect or disconnect from aforementioned PTO transmission shaft 281 transmission of power of PTO axle forward according to peripheral operation.

Aforementioned PTO speed-changing mechanism can make the rotary power speed change of transmitting to aforementioned PTO axle from aforementioned PTO transmission shaft 281 according to peripheral operation.

Aforementioned transmission gearbox 290 is made into hollow form, can hold aforementioned clutch mechanism 200, aforementioned driving system transmission device 210 and aforementioned PTO system transmission device 280.

In this form of implementation, aforementioned transmission gearbox 290 is equipped with: hold aforementioned flywheel 15 and aforementioned clutch mechanism 200 clutch case 291, hold aforementioned forward-reverse switching mechanism 220 and aforementioned main speed-changing mechanism 240 anterior case 292, hold the rear portion case 294 of aforementioned differential gear train, aforementioned clutch case 291, aforementioned anterior case 292 and aforementioned rear portion case 294 mutual tandems ground connect.

In addition, under the situation that is equipped with the aforementioned auxiliary speed-changing mechanism, in aforementioned transmission gearbox 290, between aforementioned anterior case 292 and aforementioned rear portion case 294, be equipped with intermediate box 293 (with reference to following Fig. 4).

Here, the assemble method for aforementioned tractor truck 1 describes.

The decomposition diagram of the aforementioned tractor truck 1 of expression in Fig. 4.

As shown in Figure 4, aforementioned tractor truck 1 is assembled by a plurality of unit U1 of Componentized～U5 connection in advance.

In detail, aforementioned tractor truck 1 is equipped with: comprise the driving engine that plays a part aforementioned drive source 10 interior engine unit U2, constitute aforementioned driving section 20 gear unit U1, comprise anterior wheel hub 52L, 52R at interior forward unit U3, tread plate fender unit U4 and car bonnet unit U5.

In Fig. 5 and Fig. 6, represent respectively to observe from the left back aforementioned engine unit U2 to transparent view and from the right abaft observed transparent view.In addition, in Fig. 7, represent the left transparent view of the amplification of aforementioned engine unit U2.In addition, in Fig. 5 and Fig. 6, the state of following gauge panel portion 120 is unloaded in expression.

As Fig. 1, Fig. 2 and Fig. 5 figure～shown in Figure 7, aforementioned engine unit U2 comprises aforementioned driving engine 10, turning part 110, gauge panel portion 120, joystick portion 130, handles step board 150, car bonnet support 170, Fuel Tank portion 180.

In more detail, aforementioned engine unit U2 further has the gauge panel pillar 100 of the back that is connected to aforementioned driving engine 10, and aforementioned turning part 110 is bearing on the aforementioned driving engine 10 via aforementioned gauge panel pillar 100.

In Fig. 8, represent near the enlarged perspective the aforementioned gauge panel pillar 100.In addition, in Fig. 8, the state of aforementioned gauge panel portion 120 is unloaded in expression.

In more detail, as shown in Figure 8, aforementioned gauge panel pillar 100 comprises: be connected to the adapter plate 101 of the back of aforementioned driving engine in approximate vertical and under the state of the Width of vehicle, at approximate vertical and the pair of right and left back plate 102a, the 102b that extend rearward from aforementioned adapter plate 101 under the state of vehicle fore-and-aft direction.

In addition, in this form of implementation, aforementioned adapter plate 101 is compared on the direction of vehicle width width with aforementioned driving engine 10 wideer.And, among aforementioned adapter plate 101 from the bottom of aforementioned driving engine 10, by brace panel 109 supportings of the two sides that are connected respectively to aforementioned driving engine 10 to the outstanding part of vehicle-width direction foreign side.

As Fig. 5 figure～shown in Figure 8, aforementioned turning part 110 comprises: be connected valve body 111 between the close rear portion of aforementioned a pair of back plate 102a, 102b, with the mode of extending along above-below direction roughly with the bottom be connected to hollow on the aforementioned valve body 111 get Steering gear 112, in the bottom action is connected to, be contained in power steering gear in the aforementioned valve body 111 with the state on the valve (not shown) under in be inserted into steering shaft 113 in the aforementioned Steering gear 112, can not be connected to the bearing circle 114 of the upper end of aforementioned steering shaft 113 with the relative rotation.

As shown in Figure 7, aforementioned gauge panel portion 120 comprises: be bearing in gauge panel main body 121 on the aforementioned gauge panel pillar 100, be installed in the instrument face plate 122 on the aforementioned gauge panel main body 121 in the mode around aforementioned Steering gear 112.

As Fig. 5 figure～shown in Figure 8, aforementioned joystick portion 130 includes: the aforementioned forward-reverse that is the form of bar switches control member 131, handles the throttle lever 141 of governor 11 usefulness of aforementioned driving engine 10.

The aforementioned back of advancing is switched forward-reverse that control member 131 will describe in detail via the back and is switched steering unit 230 and be connected to aforementioned forward-reverse according to operating level structure 500, the action of this form of implementation and switch on the gearshift 224.

Near in Fig. 9 the operator's seat of the aforementioned tractor truck 1 of expression right side view.

Aforementioned throttle lever 141 is bearing on the aforementioned gauge panel pillar 100 indirectly.

In detail, as Fig. 6 and shown in Figure 9, throttle lever pillar 140 is connected on aforementioned gauge panel pillar 100.

Aforementioned throttle lever pillar 140 is roughly L shaped in plan view, have leading section and be connected to the side plate 140a on the aforementioned adapter plate 101 of aforementioned gauge panel pillar 100 and extend from rearward end side in vehicle-width direction of aforementioned side plate 140a and be connected to back plate 140b on the back plate 101b on aforementioned right side of aforementioned gauge panel pillar 100.

As Fig. 6 and shown in Figure 9, aforementioned throttle lever 141 has along the base end part 142 of vehicle-width direction and the handle part 143 that extends to top roughly from the vehicle-width direction outer end of aforementioned base end part 142.

Aforementioned base end part 142, its vehicle-width direction inner end can be around the axis free rotary ground supporting on the aforementioned side plate 140b of aforementioned throttle gate pillar 140, and its vehicle-width direction outer end is positioned at the position than the more close vehicle-width direction of this gauge panel main body 121 foreign side below aforementioned gauge panel main body 121.

Aforementioned handle part 143, than aforementioned gauge panel main body 121 more by the foreign side of vehicle-width direction, the upper end extend to always aforementioned bearing circle 114 near.

As Fig. 6 and shown in Figure 9, this throttle lever 141 is connected on the aforementioned governor 11 via 300 actions of throttle gate control link mechanism.

In this form of implementation, aforementioned governor 11 except that aforementioned throttle lever 141, also can utilize throttle control 330 to handle.

In Figure 10, represent the scheme drawing of aforementioned throttle gate control link mechanism 300.

In addition, in Figure 11, the cutaway view of the XI-XI line among expression Figure 10.

As Fig. 9～shown in Figure 11, aforementioned throttle gate control link mechanism 300 is equipped with: the actuating member 305 that can not be arranged on bar side control member 301 on the base end part 142 of aforementioned throttle lever 141 with the relative rotation, can rotate freely around axis with respect to the aforementioned base end part 142 of aforementioned throttle lever 141, governor side link component 310 that will action couples together between aforementioned activities member 305 and the aforementioned governor 11, pedal side link component 315 that will action couples together between aforementioned activities member 305 and the aforementioned throttle control 330.

Aforementioned rod side control member 301 has main part 302 and action movie 303, described main part 302, in foreign side than the more close vehicle-width direction of aforementioned side plate 140a of aforementioned throttle lever pillar 140, can not be with respect to base end part 142 rotations of aforementioned throttle lever 141, described action movie 303 surpasses the interior side extension of aforementioned side plate 140a to vehicle-width direction from the periphery of aforementioned main part 302.

Aforementioned activities sheet 303 is coupled on the side (being front end face in the form shown in the figure) of aforementioned activities member 305, and described actuating member is configured in the interior side's side than the more close vehicle-width direction of aforementioned side plate 140a.

As Figure 10 clearly represented, aforementioned throttle control 330 comprised: can be around along the base end part 331 of the axis free rotary ground supporting of vehicle-width direction, the bar portion 332 of extending from the top of the step board 41 of aforementioned base end part 331 to aforementioned tread plate fender unit U4, the tread portion 333 that is arranged on aforementioned rod portion 332 leading sections, pedal side arm portion 334 that can not aforementioned relatively base end part rotation, the retracing spring 335 that aforementioned base end part 331 is loaded to side's side around axis.

In this form of implementation, aforementioned retracing spring 335 is located an end and is fixed below aforementioned tread portion 41, and another end is connected in the aforementioned pedal side arm portion 334.

Aforementioned pedal side link component 315 has the pedal side lever that extends between aforementioned activities member 305 and aforementioned pedal side arm portion 334.

Aforementioned governor side link component 310 has the governor side lever that extends between aforementioned activities member 305 and aforementioned governor 11.

And then as shown in figure 11, aforementioned throttle gate control link mechanism 300 is equipped with friction member 320 between the aforementioned side plate 140a of aforementioned throttle lever pillar 140 and aforementioned rod side control member 301.

Aforementioned friction member 320, with respect to aforementioned rod side control member 302, the loading force that generation can be resisted aforementioned retracing spring 335 is with the sliding resistance of the position that keeps aforementioned throttle lever 141.

The action as follows of the aforementioned throttle gate control link mechanism 300 of this structure.

As shown in figure 10, when the loading force of resisting aforementioned retracing spring 335 with aforementioned throttle control 330 (for example from initial position, low outgoing position L) (for example to actuated position, when high outgoing position H) entering into operation, aforementioned activities member 305 is swung to first direction R1 around the axis of aforementioned base end part 142 (below be called bar centre of gration R), by this, via aforementioned governor side link component 310 aforementioned governor 11 is shifted to actuated position (high output state) from initial position (low output state).

In addition, the aforementioned activities sheet 303 of aforementioned rod side control member 301 is a benchmark with aforementioned rod centre of gration R, is positioned at the second direction side of aforementioned activities member 305.

Thereby when entering into the aforementioned throttle control 330 of operation, aforementioned throttle lever 141 intactly is in initial position (low outgoing position L).

When removing when entering into of aforementioned throttle control 330 operated, by aforementioned retracing spring 335, aforementioned throttle control 330 returns to initial position from actuated position, aforementioned activities member 305 is swung to second direction R2 around aforementioned rod centre of gration R, by this, via aforementioned governor side link component 310 aforementioned governor is returned to initial position.

In addition, aforementioned activities sheet 303 is arranged in the otch on the aforementioned side plate 140a that is formed on aforementioned throttle lever pillar 140, by this otch, limits the hunting range of aforementioned activities sheet 303.Thereby the loading force that produces by aforementioned retracing spring 335 centers on the aforementioned activities member 305 of bar centre of gration R2 to second direction R2 swing, by contacting with aforementioned activities sheet 303, stops the moving to second direction R2 around bar centre of gration R.

Relative therewith, when with aforementioned throttle lever 141 from initial position during to the operative position swinging operation, aforementioned activities member 305 by aforementioned activities sheet 303 around bar centre of gration R to first direction R1 swing, by this, aforementioned governor 11 shifts to operating position from initial position.

At this moment, aforementioned throttle control 330 is resisted the loading force of aforementioned retracing spring 335, shifts to operating position from initial position via aforementioned pedal side link component 315.Thereby aforementioned throttle lever 141 returns to initial position by aforementioned retracing spring 335, and as previously described, aforementioned friction member 320 is provided between the aforementioned side plate 140a and aforementioned rod side control member 301 of aforementioned throttle lever pillar 140.

Thereby aforementioned throttle lever 141 remains on operating position by aforementioned friction member 320.

According to this throttle control 300, can obtain following effect.

Promptly, wanting to make aforementioned governor 11 (for example temporarily be positioned at operating position, the high output state of driving engine 10) under the situation,, can only when operating, entering into of this throttle control 330 make governor 11 position operation positions by the aforementioned throttle control 330 of operation of entering into.

Relative therewith, wanting that aforementioned governor 11 is kept under the situation of operating position, the sliding resistance by resisting aforementioned friction member 320 and the loading force of aforementioned retracing spring 335 make aforementioned throttle lever 141 shift to operating position from initial position, even after releasing is applied to the operating effort of this throttle lever 141, also aforementioned governor 11 can be remained on operating position.

As Fig. 5, Fig. 6 and shown in Figure 8, aforementioned operation tread portion 150 comprises: hollow support member 151, this hollow member are bearing on the aforementioned gauge panel pillar 100; Pedal shaft 152, it is inserted in the aforementioned hollow support member 151 in the state that extends to foreign side with both ends; Clutch segment hub 153, this clutch segment hub can be extrapolated to a distolateral extension (under the state shown in the figure, the being the left part) outside of aforementioned pedal shaft 152 with rotating freely relatively; Clutch lever 154, this clutch lever 154 are bearing on the aforementioned clutch sheet hub 153; Pedal of clutch 155, this pedal of clutch 155 is arranged on the free end of aforementioned clutch bar 154; Left side brake hub 156L, this left side brake hub 156L can not be extrapolated to another distolateral extension (under the state shown in the figure, being the right part) outside of aforementioned pedal shaft 152 with rotating freely relatively; Right side brake hub 156R, this right side brake hub 156R compares with aforementioned left side brake hub 156L, and is distolateral at another, can not be extrapolated to aforementioned pedal shaft 152 outsides with rotating freely relatively; Left side brake control lever 157L, it is bearing on the aforementioned left side brake hub 156L; Left hand brake pedal 158L, it is arranged on the free end of aforementioned left side brake toggle 157L; Right side brake control lever 157R, it is bearing on the aforementioned right side brake hub 156R; Right hand brake pedal 158R, it is arranged on the free end of aforementioned right side brake control lever 157R.

Aforementioned clutch sheet hub 153 is connected in the aforementioned clutch mechanism 200 via the (not shown) action of clutch linkage mechanism.

Among one of aforementioned pedal shaft 152 distolateral extension, be positioned at part, be connected on the aforementioned left stop mechanism via the (not shown) action of left brake linkage mechanism than the more close vehicle-width direction of aforementioned clutch sheet hub 153 foreign side position.

Aforementioned right side brake hub 157R is connected on the stop mechanism of aforementioned right side via the (not shown) action of right side brake linkage mechanism.

As Fig. 5, Fig. 6 and shown in Figure 8, aforementioned car bonnet support 170 has the car bonnet supporting member 171 that is arranged on aforementioned driving engine 10 tops.

Aforementioned car bonnet supporting member 171 is made into the shape that rear view is a shape, comprises the transverse member 173 that couples together between the pair of right and left longitudinal 172 that extends along above-below direction roughly and the upper end with aforementioned a pair of longitudinal 172.

As Fig. 5, Fig. 6 and shown in Figure 8, aforementioned Fuel Tank portion 180 comprises: be arranged on the Fuel Tank framework 181 of aforementioned driving engine 10 tops and be bearing in Fuel Tank 182 on the aforementioned Fuel Tank framework 181.

Aforementioned Fuel Tank framework 181 is extended along the fore-and-aft direction of vehicle between aforementioned pair of right and left longitudinal 172, and aforementioned Fuel Tank 182 is inserted into state lower support in the aforementioned car bonnet supporting member 171 on aforementioned Fuel Tank framework 181 interior.

In addition, shown in Fig. 7 and Fig. 9 etc., the lid 183 of aforementioned Fuel Tank 182 can be approaching from the outside via the opening that is arranged on the aforementioned gauge panel main body 121.

In Figure 12, represent the rear perspective view of aforementioned forward unit U3.

As shown in Figure 4, aforementioned forward unit U3 is connected on the aforementioned engine unit U2 removably via pair of right and left connecting panel 5.

Specifically, as Fig. 4 and shown in Figure 12, aforementioned forward unit U2 comprises: the front body 50 that forms by casting, be connected to front shell 51 on the aforementioned front body 50, be connected respectively on the left and right side of aforementioned front shell 51 about anterior wheel hub 52L, 52R, removably be installed in anterior counterweight (not shown) on the anterior counterweight installation portion 53 of being located at aforementioned front body 50 leading sections, be bearing in storage battery 54 on the aforementioned front body 50, via the radiator (not shown) that is arranged on framework 55 supportings on the aforementioned front body 50.

As shown in Figure 4, aforementioned tread plate fender unit U4 has pair of right and left tread plate fender 40.

Aforementioned tread plate fender 40 is equipped with step board 41 and mudwing portion 42 with being integral.

As shown in Figure 4, aforementioned car bonnet unit U5 is connected to the car bonnet 60 on the aforementioned car bonnet supporting member 171 with having detachable.

Aforementioned car bonnet 60 is pivotably connected on the aforementioned car bonnet supporting member 171, can be in the position of the top that covers aforementioned driving engine 10, aforementioned Fuel Tank 182 and aforementioned forward unit U3 and the open position that they are opened.

Secondly, switching steering unit 230 for aforementioned forward-reverse describes.

In Figure 13, the vertical profile front elevation of the aforementioned gear unit U1 of the XIII-XIII line of expression in Fig. 3.

As shown in figure 13, aforementioned forward-reverse switches steering unit 230 and comprises: fork shaft 231, this fork shaft 231 with the state configuration of aforementioned axle drive shaft 221 and aforementioned driven shaft 222 almost parallels in aforementioned transmission gearbox 290; Fork 232, its base end part can be bearing on the aforementioned fork shaft 231 slidably along axis direction, and its point is coupled to aforementioned forward-reverse and switches on the gearshift 224; Control lever shaft 233, one end can be around the axis free rotary ground supporting on aforementioned transmission gearboxs 290 along the direction with respect to aforementioned fork shaft 231 approximate vertical under the state of the position that is positioned at aforementioned transmission gearbox 290 foreign sides; Movement arm 234, this movement arm 234 connects the base end part of aforementioned control lever shaft 233 and aforementioned fork 232; Control arm 235, this control arm 235 can not be bearing on foreign side's extension of aforementioned control lever shaft 233 with the relative rotation.

In this form of implementation, aforementioned control arm 235 plays a part the switching manoeuvre portion of the operating state of the aforementioned forward-reverse switching mechanism 220 of switching.

Promptly, when according to manual operation, around the aforementioned control arm 235 of the axis swinging operation of aforementioned control lever shaft 233, aforementioned fork 232 slides along aforementioned fork shaft 231, and by this, aforementioned forward-reverse switches that gearshift 224 is positioned at that positive transposition is put, center position or backward position.

In addition, in this form of implementation, as shown in figure 13, the aforementioned anterior case 292 that constitutes aforementioned transmission gearbox 290 comprises: the anterior box main body 292a of opening is set and is connected to cover case member 292b on the aforementioned anterior box main body 292a removably in the mode of the aforementioned opening of obturation at right flank.

In this structure, aforementioned control lever shaft 233 can rotate freely being bearing on the aforementioned housing member 292b of ground around axis.

Here, the operating level structure 500 according to this form of implementation is described.

According to the operating level structure 500 of this form of implementation, connect the change action portion 235 of aforementioned forward-reverse switching mechanism 220 and mode that can manned aforementioned forward-reverse control member 131 constitutes with action.

In Figure 14 and Figure 15, the left transparent view and the right transparent view of the assembly that expression couples together aforementioned engine unit U2 and aforementioned transfer unit U1 to form.In addition, in Figure 14 and Figure 15,, removed a part of member in order clearly to represent aforementioned operating level structure 500.

In addition, in Figure 16 and Figure 17, only represent the front elevation and the front, perspective view of aforementioned operating level structure 500 respectively.

As Figure 14～shown in Figure 17, aforementioned operating level structure 500 comprises the first control link mechanism 510 and the second control link mechanism 550, the described first control link mechanism 510 to be being connected to state support in the aforementioned change action portion 235 on aforementioned transfer unit U1, and state support on the control member 131 is switched on aforementioned engine unit U2 to be connected to aforementioned forward-reverse in the described second control link mechanism 550.

Aforementioned first and second control link mechanism 510,550 under the state that intactly is supported on cooresponding aforementioned unit U1, the U2, can interconnect/separate.

According to this operating level structure 500, under the aforementioned first control link mechanism 510 being installed on the aforementioned gear unit U1 and the aforementioned second control link mechanism 550 being installed to state on the aforementioned engine unit U2, can carry out connection operation or the detached job of aforementioned gear unit U1 and aforementioned engine unit U2.

Thereby, can improve the efficient of the assembling operation and the maintenance activity of aforementioned tractor truck 1.

In this form of implementation, as Figure 16 and shown in Figure 17, the aforementioned first control link mechanism 510 has with can be around the state of axis rotation along first connecting rod side first control lever shaft 511 of above-below direction configuration roughly, rotate around axis by this first connecting rod side first control lever shaft 511, via the aforementioned control arm 235 that works as the switching manoeuvre portion, aforementioned control lever shaft 233 is around the axis rotation.

In more detail, the aforementioned first control link mechanism 510 is equipped with: aforementioned first connecting rod side first control lever shaft 511; First connecting rod side first bar 513, this first connecting rod side first bar is connected on described first connecting rod side first control lever shaft 511 to respond aforementioned first connecting rod side first control lever shaft 511 around the rotation of axis, along the mode that own axis direction moves, to move; First connecting rod side second control lever shaft 515, this first connecting rod side second control lever shaft, in the mode that the axis that moves, centers on oneself that responds aforementioned first connecting rod side first bar 513 rotates, action is connected on described first connecting rod side first bar 513; First connecting rod side second bar 517, this first connecting rod side second bar is connected on this first connecting rod side second control lever shaft 515 to respond aforementioned first connecting rod side second control lever shaft 515 around the rotation of axis, along the mode that own axis moves, to move; 517 actions of aforementioned first connecting rod side second bar are connected on the aforementioned control arm 235.

In this form of implementation, first connecting rod side the first arm 512 can not be arranged at the bottom of aforementioned first connecting rod side first control lever shaft 511 with the relative rotation.

Aforementioned first connecting rod side first bar 513, the action of one end is connected to the free end of aforementioned first connecting rod side the first arm 512, and its other end action is connected on the first connecting rod side second top arm 514 of the upper end that can not be arranged on aforementioned first connecting rod side second control lever shaft 515 with the relative rotation.

In addition, shown in Figure 14 waited, aforementioned first connecting rod side first control lever shaft 511 was near the aforementioned Steering gear 112 of the vehicle-width direction substantial middle of aforementioned transmission gearbox 290, along roughly above-below direction configuration.On the other hand, shown in Figure 15 waited, aforementioned first connecting rod side second control lever shaft 515 was in the right side side of aforementioned transmission gearbox 290, along roughly above-below direction configuration.

Thereby aforementioned first connecting rod side first bar 513 can move the mode that connects first and second control lever shaft 511,515 of aforementioned first connecting rod side, disposes along vehicle-width direction.

The first connecting rod side second below arm 516 can not be arranged on the bottom of aforementioned first connecting rod side second control lever shaft 515 with the relative rotation.

And aforementioned first connecting rod side second bar 517 extends along the vehicle fore-and-aft direction, so that action connects the free end of the aforementioned first connecting rod side second below arm 516 and the free end of aforementioned control arm 235.

In Figure 18, represent near the transparent view aforementioned first connecting rod side first control lever shaft 511.

As shown in figure 18, in this form of implementation, aforementioned first connecting rod side first control lever shaft 511 can center on the axis free rotary ground supporting by first connecting rod side first supporting member 530 that is arranged on the aforementioned transmission gearbox 290.

In detail, aforementioned first connecting rod side first supporting member 530 comprises: main part 531, this main part comprise base plate that is fixed in aforementioned transmission gearbox 290 upper surfaces and the pair of side plates of extending upward from this base plate; Bearing portion 535, this bearing portion 535 is bearing on this main part 531, is positioned at the front side of aforementioned body portion 531.

And aforementioned first connecting rod side first control lever shaft 511 can center on the axis free rotary ground supporting with the outwards square respectively state that extends in upper end and bottom by aforementioned bearings portion 535.

In Figure 19, the left side view of the assembly that expression aforementioned engine unit U2 of connection and aforementioned gear unit U1 form.

Preferably, as Fig. 7 and shown in Figure 19, via clamp structures such as screw-nut 533, the aforementioned pair of side plates in the aforementioned body portion 531 is connected to respectively on pair of side plates 102a, the 102b in the aforementioned gauge panel pillar 100 removably.

By having this structure, can seek both stabilizations of aforementioned gauge panel pillar 100 and aforementioned first connecting rod side first supporting member 530.

As Figure 14～shown in Figure 19, the aforementioned second control link mechanism 550 have response to aforementioned forward-reverse switch the manual operation of control member 131, around the second connecting rod side control lever shaft 551 of axis rotation.

Aforementioned second connecting rod side control lever shaft 551, under the state that connects aforementioned gear unit U1 and aforementioned engine unit U2, with the state of the upper end subtend of its bottom and aforementioned first connecting rod side first control lever shaft 511, can not be around axis rotation and can connecting removably relatively.

Promptly, under the state that aforementioned second connecting rod side control lever shaft 551 is connected on aforementioned first connecting rod side first control lever shaft 511, the manual operation of control member 131 is switched in response to aforementioned forward-reverse, aforementioned first connecting rod side first control lever shaft 511 is around the axis rotation, by this, the aforementioned control arm 235 that works as change action portion is swung around aforementioned control lever shaft 233.

In detail, the aforementioned second control link mechanism 550 is equipped with: aforementioned second connecting rod side control lever shaft 551 and with the direct or indirect second connecting rod side bearing member 560 of the aforementioned second connecting rod side control lever shaft 551 of supporting of the state that can rotate freely around axis.

In Figure 20, represent near the transparent view the aforementioned second connecting rod side bearing member 560.

As shown in figure 20, in this form of implementation, aforementioned second connecting rod side bearing member 560 under the state that is fixed on the aforementioned Steering gear 112, supports aforementioned second connecting rod side control lever shaft 551.

Specifically, aforementioned second connecting rod side bearing member 560 has: the support 562 that is connected to the basal part 561 on the aforementioned Steering gear 112 and extends to the side from aforementioned basal part 561.

And aforementioned second connecting rod side control lever shaft 551 can be around the axis free rotary ground supporting via bearing components 565 quilts that are arranged on the aforementioned supporting member 562.

And then, in this form of implementation, the aforementioned second control link mechanism 550 has bindiny mechanism 600, this bindiny mechanism, the manual operation of control member 131 is switched in response to aforementioned forward-reverse, make aforementioned second connecting rod side control lever shaft 511 around the axis rotation, simultaneously, aforementioned forward-reverse can be switched control member 131 and engage to center position.

In detail, aforementioned forward-reverse switches control member 131 and comprises: with aforementioned second connecting rod side control lever shaft 551 the benchmark axial region 132 of subtend configuration and the manipulation axial region 133 that extends obliquely upward from the upper end of aforementioned reference axis portion 132 coaxially.

The free end of aforementioned manipulation axial region 133 extends (with reference to Fig. 7 etc.) from aforementioned gauge panel 120 to foreign side.

That is, control, operate the free end of aforementioned manipulation axial region 133 by the user, aforementioned forward-reverse switches the axis rotation of control member 131 around aforementioned benchmark axial region 132.

Aforementioned bindiny mechanism 600, by centering on the axis rotation that aforementioned forward-reverse switches the aforementioned benchmark axial region 132 of control member 131, in the mode of aforementioned second connecting rod side control lever shaft 551 around the axis rotation, both are connected, and then aforementioned bindiny mechanism 600 plays a part aforementioned forward-reverse is switched the drg that control member 131 remains on center position.

On Figure 21, expression is along the longitudinal section of the aforementioned bindiny mechanism 600 of the axis of aforementioned second connecting rod side control lever shaft 551.

As Figure 20 and shown in Figure 21, aforementioned bindiny mechanism 600 is equipped with and can not be connected to connecting rod side transom 610 on the upper end of aforementioned second connecting rod side control lever shaft 551 with the relative rotation around axis.

In this form of implementation, aforementioned connecting rod side transom 610 comprises: can not be extrapolated to the relative rotation aforementioned second connecting rod side control lever shaft 551 upper end outside hollow bulb 611 and be connected to a pair of supporting board 612 on this hollow bulb 611 with clipping aforementioned hollow bulb 611 mutual subtends.

And then aforementioned bindiny mechanism 600 comprises: pivot bolster 620, the mode that this pivot bolster intersects with the axis with aforementioned second connecting rod side control lever shaft 551 are bearing on the aforementioned a pair of supporting board 612; Bearing portion 630, the outside that state in the aforementioned benchmark portion 132 of control member 131 is extrapolated to aforesaid pivoted bolster 620 is switched to be fixed to aforementioned forward-reverse in this bearing portion 630; Brake plate 640, this brake plate 640 are arranged on the aforementioned benchmark axial region 132 of aforementioned forward-reverse switching control member 131 in the mode to radially foreign side's extension of direction; Aforementioned brake plate 640 inserts the pilot hole 650 that connects; And the neutral spring 660 that keeps, this neutrality keeps spring 660 that aforementioned forward-reverse switching control member 131 is loaded to a side of aforesaid pivoted bolster 620 rotations.

Aforementioned pilot hole 650 has such size, that is, when aforementioned forward-reverse switching control member 131 centers on the axis rotation of aforementioned benchmark axial region 132, allow aforementioned brake plate 640 around aforementioned benchmark axial region 132 swings.

And then, on aforementioned pilot hole 650, forming slit 651, the size of this slit makes that this brake plate 640 can snap onto the position with aforementioned brake plate 640 subtends when making aforementioned forward-reverse switching control member 131 be positioned at center position.

The aforementioned neutral spring 660 that keeps loads aforementioned bearings portion 630 towards making aforementioned brake plate 640 snap in aforementioned slots 651 directions.

The connection structure 600 of this structure is moved by following mode.

Switching control member 131 at aforementioned forward-reverse is positioned under the state of the center position of the axis of aforementioned benchmark axial region 132, under the situation that does not give these forward-reverse switching control member 131 manual handling power, aforementioned brake plate 640 snaps in the aforementioned slots 651 by the aforementioned neutral spring 660 that keeps.In this state, aforementioned brake plate 640 can not be held rotatably around the axis of aforementioned benchmark axial region 132.Thereby, aforementioned forward-reverse is switched control member 131 remains on aforementioned center position.

Aforementioned forward-reverse is switched control member 131 from center position to positive transposition put or the situation of backward position operation under, at first, aforementioned brake plate 640 is resisted the aforementioned neutral loading force that keeps spring 660 to the direction that breaks away from aforementioned slots 651, makes aforementioned forward-reverse switch control member 131 around 620 swings of aforesaid pivoted bolster.In this state, aforementioned brake plate 640 can be around aforementioned benchmark axial region 132 swings in aforementioned pilot hole 650.Thereby, switch the axis rotation of control member 131 by making aforementioned forward-reverse around aforementioned benchmark axial region 132, via aforementioned connecting rod side transom 610, aforementioned second connecting rod side control lever shaft 551 is around the axis rotation.

Preferably, can make the A/F (along the opening length of the direction of the axis of aforementioned benchmark axial region 132) of aforementioned pilot hole 650 and the width of aforementioned brake plate 640 (along the length of the direction of the axis of aforementioned benchmark axial region 132) roughly the same.

By this structure, can stably carry out aforementioned forward-reverse and switch the rotary manipulation of control member 131 around aforementioned benchmark axial region 132.

In addition, in this form of implementation, aforementioned pilot hole 650 is formed on the aforementioned base portion 561 of aforementioned second connecting rod side bearing member 560.

Secondly, the connection structure for aforementioned first connecting rod mechanism 510 and aforementioned second connecting rod mechanism 550 describes.

As shown in figure 18, in this form of implementation, the subtend end of aforementioned first connecting rod side first control lever shaft 511 and aforementioned second connecting rod side control lever shaft 551 is connected removably by the pin 540 that plays the clamp structure effect.

In detail, in this form of implementation, aforementioned first connecting rod side first control lever shaft 511 and aforementioned second connecting rod side control lever shaft 551, by aforementioned engine unit U2 and aforementioned gear unit U1 are relatively moved along the vehicle fore-and-aft direction, can be positioned at the state of coaxial axis unanimity and mutual axial location out-of-position released state configuration with mutual axis.

The bottom of the upper end of aforementioned first connecting rod side first control lever shaft 511 and aforementioned second connecting rod side control lever shaft 551 under the state of aforementioned axis unanimity, in lateral plan, constitutes with overlap mode.And, by utilizing aforementioned pin 540 to connect aforementioned overlapping part, aforementioned first connecting rod side first control lever shaft 511 and aforementioned second connecting rod side control lever shaft 551 can not center on the counterrotating connection of axis, and, by unloading aforementioned pin 540, aforementioned first connecting rod side first control lever shaft 511 and aforementioned second connecting rod side second control lever shaft 511 can be separated (with reference to Figure 22).

In this form of implementation, as shown in figure 18, concavity member 541 is set in the bottom of aforementioned second connecting rod side control lever shaft 551.Aforementioned concavity member 541 is via a pair of back plate 542 of the slit 543 mutual subtends of opening wide in the horizontal direction.

On the other hand, upper end at aforementioned first connecting rod side first control lever shaft 511 is provided with convex member 545, described convex member 545 when aforementioned engine unit U2 and aforementioned gear unit U1 are connected, is configured between the aforementioned a pair of back plate 542 via aforementioned slots 543.

And,, aforementioned first connecting rod side first control lever shaft 511 and second connecting rod side control lever shaft 551 can not be connected with the relative rotation around axis by aforementioned convex member 545 and aforementioned concavity member 541 being connected by aforementioned pin 540.

Preferably, when making aforementioned forward-reverse switching control member 131 be positioned at center position, aforementioned slots 543 is towards the vehicle fore-and-aft direction.

According to this structure,, can carry out connection operation and the detached job of aforementioned engine unit U2 and aforementioned gear unit U1 in that aforementioned forward-reverse switching mechanism 220 is under the state of neutral condition.

Preferably, the aforementioned first control link mechanism 510 can further be equipped with first connecting rod side second supporting member 520 (with reference to Figure 15) that can center on aforementioned first connecting rod side second control lever shaft 515 of axis free rotary ground supporting.

In this form of implementation, aforementioned first connecting rod side second supporting member 520 under aforementioned first connecting rod side second control lever shaft 515 is inserted into state in it, is fixed on the right flank of aforementioned transmission gearbox 290.

By being equipped with this first connecting rod side second supporting member 520, can seek to respond action stabilization from the manually-operated aforementioned operating level structure 500 of control member 131 to aforementioned forward-reverse that switch.

Promptly, as previously described, in operating level structure 500 according to this form of implementation, with the manual operation interlock of switching control member 131 to aforementioned forward-reverse, aforementioned second connecting rod side control lever shaft 551, aforementioned first connecting rod side first control lever shaft 511 and aforementioned first connecting rod side second control lever shaft 515 are around the axis rotation.

As previously described, aforementioned second connecting rod side control lever shaft 551 can center on the axis free rotary ground supporting by aforementioned second connecting rod side bearing member 560, and aforementioned first connecting rod side first control lever shaft 511 can center on the axis free rotary ground supporting by aforementioned first connecting rod side first supporting member 530.

Thereby, by utilizing aforementioned first connecting rod side second control lever shaft 515 of aforementioned first connecting rod side second supporting member, 520 supportings, the link component that can rotate around the axis free rotary ground supporting around axis (promptly, first connecting rod side first control lever shaft 511, first connecting rod side second control lever shaft 515 and second connecting rod side control lever shaft 551) whole, by this, can seek to switch the action stabilization of the aforementioned operating level structure 500 of control member 131 interlocks with aforementioned forward-reverse.

In addition, in this form of implementation, be that example is illustrated operating level structure according to the present invention with the situation that is applied to aforementioned forward-reverse switching mechanism 220, still self-evident, also go for various transmission devices such as gear type multi-change speed mechanism.

Claims (9)

1. operating level structure, described operating level structure can change from drive source to the transmission device of the drive state of efferent with handle the manual handling member that aforementioned transmission device uses and couple together in linkage, be applicable to engineering truck,

It is characterized in that this operating level structure comprises:

The first control link mechanism, the described first control link mechanism with the state on the switching manoeuvre portion that is connected to aforementioned transmission device, is bearing in the transmission gearbox that comprises this transmission device and hold this transmission device on interior first module,

The second control link mechanism, the described second control link mechanism comprises this manual handling member on interior Unit second to be connected to the state on the aforementioned manual handling member, to be bearing in,

Aforementioned first and second control link mechanism under the state that intactly is supported on the cooresponding aforementioned unit, can connect mutually removably.

2. operating level structure as claimed in claim 1 is characterized in that, the aforementioned first control link mechanism has first connecting rod side control lever shaft, and described first connecting rod side control lever shaft is with can be around the state of axis rotation along roughly above-below direction configuration,

The aforementioned second control link mechanism has second connecting rod side control lever shaft, this second connecting rod side control lever shaft, rotate around axis according to manual handling aforementioned manual handling member, and, can not be around the relative rotation of axis with the state of bottom and the upper end subtend of aforementioned first connecting rod side control lever shaft but can connect removably with respect to this first connecting rod side control lever shaft.

3. operating level structure as claimed in claim 2 is characterized in that, aforementioned first module as gear unit, being comprised: the forward-reverse switching mechanism that works as aforementioned transmission device; The speed-changing mechanism that works as other transmission device; The aforementioned transmission gearbox that holds aforementioned forward-reverse switching mechanism and aforementioned speed-changing mechanism,

Aforementioned Unit second as engine unit, being comprised: the driving engine that works as aforementioned drive source; The turning part, this turning part comprises Steering gear, steering shaft and bearing circle; Gauge panel portion, this gauge panel portion comprise the gauge panel main body around aforementioned Steering gear; Joystick portion, this joystick portion comprises the forward-reverse changer lever that works as aforementioned manual handling member; Controlled pedal portion, this controlled pedal portion comprises brake pedal; Fuel Tank portion, this Fuel Tank portion comprises Fuel Tank, and this Fuel Tank becomes the fuel source of aforementioned driving engine.

4. operating level structure as claimed in claim 3 is characterized in that, aforementioned first connecting rod side control lever shaft can center on the axis free rotary ground supporting directly or indirectly by the first connecting rod side bearing member that is arranged at aforementioned transmission gearbox,

Aforementioned second connecting rod side control lever shaft can center on the axis free rotary ground supporting directly or indirectly by the second connecting rod side bearing member that is arranged at aforementioned Steering gear.

5. as claim 3 or 4 described operating level structures, it is characterized in that aforementioned first and second unit connects along the vehicle fore-and-aft direction,

By aforementioned first and second unit is relatively moved along the vehicle fore-and-aft direction, aforementioned first and second connecting rod side control lever shaft can be in each other axis and be positioned at the axis consistent state on the same axle and the released state of axis runout each other,

The bottom of the upper end of aforementioned first connecting rod side control lever shaft and aforementioned second connecting rod side control lever shaft, overlapping in lateral plan when the aforementioned axis consistent state,

By utilizing clamp structure that aforementioned overlapping part is coupled together, aforementioned first and second connecting rod side control lever shaft is connected can not center on the counterrotating mode of axis.

6. operating level structure as claimed in claim 5, it is characterized in that, on one in the bottom of the upper end of aforementioned first connecting rod side control lever shaft and aforementioned second connecting rod side control lever shaft the concavity member is set, this concavity member has a pair of back plate of the mutual subtend of offering via along continuous straight runs of slit

On in the lower end of the upper end of aforementioned first connecting rod side control lever shaft and aforementioned second connecting rod side control lever shaft another convex member is set, this convex member is configured between the aforementioned a pair of back plate via aforementioned slots,

By utilizing aforementioned clamp structure that aforementioned convex member and aforementioned concavity member are coupled together, aforementioned first and second connecting rod side control lever shaft is connected can not center on the counterrotating mode of axis.

7. operating level structure as claimed in claim 6 is characterized in that, aforementioned transmission device can take with from aforementioned drive source to the open circuited neutral condition of the power transmission of aforementioned efferent,

When the center position that aforementioned manual handling member is positioned at make aforementioned transmission device be in neutral condition, aforementioned slots is towards the fore-and-aft direction of vehicle.

8. as any one described operating level structure in the claim 5 to 7, it is characterized in that, aforementioned gauge panel body abutment on the gauge panel pillar that is connected on the aforementioned driving engine,

Aforementioned first and second connecting rod side control lever shaft is above the upper surface of aforementioned transmission gearbox and below aforementioned gauge panel pillar and aforementioned gauge panel main body, in being connected by aforementioned clamp structure from approaching position, vehicle side.

9. operating level structure as claimed in claim 8 is characterized in that, aforementioned first connecting rod side bearing member has: the pair of side plates that main part, described trunk portion comprise the base plate on the upper surface that is fixed on aforementioned transmission gearbox and extend upward from this base plate; Bearing portion, described bearing portion in the front side of aforementioned body portion, be bearing on this main part,

Aforementioned pair of side plates is connected to respectively on the pair of side plates in the aforementioned gauge panel pillar removably via clamp structure.

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