JPS6340027Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention connects the front body, which is equipped with an engine, driver's seat, driving front wheels, and transmission case, and the rear body, which is equipped with a cargo bed and driving rear wheels, so that the body can bend left and right. The present invention also relates to a transport vehicle in which the transmission case and a PTO shaft provided at the rear of the rear vehicle body are interlocked and connected. In the above-mentioned transport vehicle, the working equipment connected to the rear of the rear vehicle body and the working equipment mounted on the loading platform are driven by the PTO shaft, but a clutch and operating lever are required to drive and stop the PTO shaft at will. . In such cases, the PTO clutch is generally installed inside the transmission case of the front vehicle body, and the control levers are provided in front of the seat or near the left and right sides. However, levers such as the gear shift lever, parking lever, and defrot lever are usually installed in front of the seat or near the left and right sides, so if a PTO clutch lever is installed, the levers will be closer together, making it easier to operate them. This may lead to poor performance or operational errors. In particular, when operating the PTO clutch lever, it is often necessary to monitor the rear working equipment and its surroundings to ensure safety before engaging or disengaging the clutch.
If the lever is located in front of the seat or near the left and right sides, the driver will have to operate the clutch lever in an unstable position with his/her upper body twisted backwards and with his/her eyes away from the clutch lever, further worsening operability. It was hot. This invention was made with attention to this point, and the purpose of this invention is to make it possible to operate the PTO clutch safely and reliably without the above-mentioned problems by focusing on the structure unique to the foldable type transport vehicle. Embodiments of the present invention will be described below based on the drawings. Fig. 1 shows the overall side view of the folding-body transport vehicle, and Fig. 2 shows its plane. An engine 2 and a driver's seat 3 are installed side by side on a pair of left and right main frames 1, and a honeycomb is installed below the main frame 1. A front vehicle body 7 is constructed by disposing left and right front wheels 6, 6 which receive power via a front case 4 and a differential case 5, and a dump truck bed 9 is mounted on a pair of left and right main frames 8. 8 Differential case 1 below the rear
Left and right rear wheels 11, 11 which receive power through 0
The rear body 12 is constructed by deploying the front body frame 1, and the rear end of the front body main frame 1 and the front end of the rear body frame 8 are connected via a hitch part 13 so as to be able to bend left and right around the vertical axis P. By rotating a control handle 14 provided at the front of the driver's seat 3, a power steering hydraulic cylinder 15 is telescopically driven , and the front vehicle body 7 can be steered and turned relative to the rear vehicle body 12. The transmission case 4 and the rear wheel differential case 10 are interlocked and connected below the main frames 1 and 8 via a transmission shaft 17, a telescopic transmission shaft 18, and a universal joint 19. A PTO drive shaft 20 which is protruded from the upper part of the rear end surface of the front case 4 and is constantly rotated, and a PTO drive shaft 20 which is arranged at the rear of the main frame 8 of the rear vehicle body 12 via a reduction case 21.
The PTO shaft 22 is interlocked and connected as follows. That is, an intermediate shaft 24 which is interlocked and connected to the PTO drive shaft 20 by a belt 23 is provided above the rear part of the front main frame 1, and an auxiliary reduction case 25 and an intermediate shaft 24 are provided above the rear main frame 8. PTO transmission shaft 2 supported across bearing portion 26
7 is provided, and the front end of this PTO transmission shaft 27 and the intermediate shaft 24 are connected to a telescopic transmission shaft 28 and a universal joint 2.
9, 29 and an interlocking clutch 30. An operating lever 31 of the clutch 30 is provided upright at approximately the center of the left and right behind the cockpit 3. FIG. 4 shows another embodiment of the PTO transmission system. This shows the case of a large aircraft in which the main frames 1 and 8 have a relatively high ground clearance, and the PTO drive shaft 20 and the PTO transmission shaft 27 are connected to the clutch 30 below the main frames 1 and 8.
The shaft is transmitted through. In addition, a speed change case is provided in place of the deceleration case 21 or 25 of the PTO shaft 22, and the speed change lever is
It may be installed in parallel with the PTO clutch operation lever 31, or the PTO speed may be changed within the transmission case 4. As described above in the embodiments, the present invention includes a front vehicle body 7 equipped with an engine 2, a driver's seat 3, driving front wheels 6, and a transmission case 4, and a rear vehicle body 12 equipped with a cargo platform 9 and driving rear wheels 11. In a transport vehicle in which the transmission case 4 and the PTO shaft 22 provided at the rear of the rear vehicle body 12 are interlocked and connected, the PTO shaft 22
A clutch 30 is attached to the front body 7 side of the transmission system.
is provided, and the operating lever 31 of this clutch 30 is connected to the driver's seat 3 when viewed in the axial direction of the front wheel 6.
The PTO clutch operating lever 31
By providing the PTO clutch at the rear, away from the cockpit 3, there is no need to dispose many operating levers in front of the cockpit 3 or around the left and right sides, which deteriorates operability. When operating lever 31, twist your body backwards.
Since the clutch is turned on and off while monitoring the attached working device at the rear of the aircraft, which is driven by the PTO shaft 22, the lever 31 can be operated more reliably, easily and safely if it is located behind the cockpit 3. In other words, in such a foldable body type transport vehicle, there is a relatively large gap around the joint between the front body 7 and the rear body 12 due to the body folding space, and the present invention effectively utilizes this point to connect the PTO clutch. 30 and its operating lever 31, it was possible to improve the operability as described above.

[Brief explanation of the drawing]

The drawings show an embodiment of the transport vehicle according to the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a schematic side view showing the PTO transmission system, Fig. 3 is an overall plan view, and Fig. 4 is an overall side view.
FIG. 6 is a schematic side view showing another embodiment of the PTO transmission system. 2...engine, 3...cockpit, 4...mission case, 6...front wheel, 7 ...front vehicle body, 9...
...Cargo platform, 11...Rear wheel, 12 ...Rear body, 30
...PTO clutch, 31...Operation lever, 1...
...Front body main frame, 8...Rear body main frame.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A front vehicle body 7 equipped with an engine 2, a driver's seat 3, a driving front wheel 6, and a transmission case 4, and a rear vehicle body 12 equipped with a cargo platform 9 and a driving rear wheel 11 on the left and right sides. The body is connected so as to be bendable and is provided at the rear of the transmission case 4 and the rear vehicle body 12 .
In a transport vehicle in which the PTO shaft 22 is interlocked and connected, a clutch 30 is provided on the front vehicle body 7 side of the transmission system relative to the PTO shaft 22, and the operating lever 31 of the clutch 30 is moved when viewed in the axial direction of the front wheel 6. A transport vehicle, characterized in that it is installed upright between the driver's seat 3 and the loading platform 9. 2 The PTO transmission system is connected to the front and rear vehicle bodies 7 , 12 .
The transmission case 4 and the drive rear wheel 11 are arranged along the upper part of each of the main frames 1 and 8.
2. The transport vehicle according to claim 1, wherein a transmission system for said main frames 1 and 8 is disposed along the lower part of said main frames 1 and 8.