JP3217207U - Carrier platform mechanism - Google Patents

Abstract

An object of the present invention is to easily and surely realize a carrier platform mechanism of a transport vehicle in which a front part and a rear part of a carrier can swing independently and can be freely combined according to demand by adding a simple mechanism.
A first cylinder mechanism capable of swinging independently of each other and capable of swinging a front part of a cargo bed with a rear end of the front part as a fulcrum, and swinging a rear part of the cargo bed with a front end of the rear part as a fulcrum A fulcrum at the rear end of the front part of the loading platform and a fulcrum at the front end of the rear part, comprising a common fulcrum mechanism 8 present at a common position, The front end portions of the rear portions are connected to each other through a common fulcrum mechanism so as to be able to swing independently. The common fulcrum mechanism includes a shaft 12 that extends in the width direction of the loading platform and is fixed to the chassis 11 of the transport vehicle, and a first hinge member 13 and a second hinge member 14 that are provided to be rotatable relative to each other around the shaft. The first hinge member is fixed to the rear end portion of the front portion of the cargo bed, and the second hinge member is fixed to the front end portion of the rear portion.
[Selection] Figure 2

Description

  The present invention relates to a carrier platform mechanism of a transport vehicle, and more particularly to a carrier platform mechanism of a transport vehicle that is extremely convenient and useful for actual use, in which a front portion and a rear portion of the load platform can swing independently (tilt).

  In a transport vehicle such as a large truck that loads and transports heavy objects such as construction machinery, the rear part of the loading platform can often be tilted by swinging. There is known a cargo bed rear rocking mechanism provided with a specific link mechanism that enables the rocking of the cargo bed rear part by a simple operation (Patent Document 1).

  In addition, there is also known a heavy-duty transporter vehicle that allows loading and unloading of heavy objects by tilting the entire cargo bed even in a place where a large space cannot be secured at the rear of the vehicle (Patent Document 2).

Utility Model Registration No. 2542599 Utility Model Registration No. 3148016

  Various types of loading and transportation forms may be required for a transportation vehicle capable of loading and transporting heavy objects such as construction machines. For example, when it is required to load and transport other objects to be transported along with heavy objects such as construction equipment, a relatively light object to be transported or a relatively small object to be transported can be used. When it is required to load and transport, regardless of whether it is heavy or not, when it is required to load and transport a relatively long and large transported object like heavy equipment such as construction machinery, etc. Various loading and transport modes may be required.

  However, a loading platform mechanism in which only the rear portion of the loading platform as disclosed in Patent Document 1 can swing, or a loading platform in which the loading platform as disclosed in Patent Document 2 can swing only over the whole. In the mechanism, there are cases where it is difficult to meet the above various requirements.

  Therefore, in view of such circumstances, the problem of the present invention is that the front and rear parts of the cargo bed can swing (tilt) independently, and the postures of the front and rear parts of the cargo bed can be freely combined as required. Therefore, it is possible to easily and surely realize a carrier mechanism of a transport vehicle that is extremely convenient and useful for actual use by adding a simple specific mechanism.

  In order to solve the above-mentioned problems, a carrier mechanism of a transport vehicle according to the present invention includes a first cylinder mechanism that can operate independently of each other, and can swing the front part of the carrier with the rear end of the front part as a fulcrum. A second cylinder mechanism capable of swinging the rear part of the cargo bed with the front end of the rear part as a fulcrum, and the fulcrum at the rear end part of the front part of the cargo bed and the fulcrum at the front end part of the rear part of the cargo bed, It consists of a common fulcrum mechanism that exists at a common position in the front-rear direction, and the rear end part of the front part of the cargo bed and the front end part of the rear part of the cargo bed are connected to each other via the common fulcrum mechanism so as to be able to swing independently of each other. It consists of what is characterized by this.

  In such a carrier platform mechanism according to the present invention, the front part of the carrier is swung by the first cylinder mechanism with the rear end of the front part as a fulcrum, and the rear part of the carrier has the front end part of the rear part. Since the first cylinder mechanism and the second cylinder mechanism are swung by the second cylinder mechanism at the fulcrum and can operate independently of each other, the tilting posture of the front part of the cargo bed, the horizontal attitude, the tilting attitude of the rear part of the cargo bed, It becomes possible to freely combine the horizontal postures, and it is possible to easily meet various demands regarding the postures of the front part, the rear part and the whole of the cargo bed. The fulcrum at the rear end of the front part of the loading platform and the fulcrum at the front end of the rear part of the loading platform are composed of a common fulcrum mechanism located at a common position in the longitudinal direction of the loading platform, and the rear end of the front part of the loading platform And the front end of the rear of the loading platform are connected to each other via the common fulcrum mechanism so that they can swing independently of each other, so that the loading platform posture in which the front of the loading platform and the rear of the loading platform bend around the common fulcrum mechanism, In the fulcrum mechanism part, the front part of the cargo bed and the rear part of the cargo bed are connected in a straight line, and the whole cargo bed takes an inclined posture or a horizontal posture.In other words, it takes various cargo bed postures to meet various demands. This is done easily and smoothly without an undesirable step between the front and rear. In addition to the first and second cylinder mechanisms described above, various loading platform postures for meeting these various requirements only add a common fulcrum mechanism that exists at a common position in the longitudinal direction of the loading platform. This is easily and reliably realized by adding a simple mechanism.

  In the carrier platform mechanism according to the present invention, the common fulcrum mechanism is provided with a shaft that extends in the width direction of the carrier and is fixed to the chassis of the carrier vehicle, and is rotatable relative to each other around the shaft. It has a first hinge member and a second hinge member, and the first hinge member is fixed to the rear end portion of the front portion of the cargo bed, and the second hinge member is fixed to the front end portion of the rear portion of the cargo bed, respectively. The form currently used can be employ | adopted. In such a configuration, independent swinging of the front and rear of the loading platform can be performed more easily and smoothly through a compact common fulcrum mechanism including the shaft and the first and second hinge members. Surely done.

  In such a common fulcrum mechanism, it is preferable that a plurality of the first hinge member and the second hinge member are respectively provided at different positions in the extending direction of the shaft (the width direction of the loading platform). . If comprised in this way, since the front part and rear part of a loading platform will be connected with several hinge members, the rocking | fluctuation operation | movement of the front part and rear part of a loading platform will be stabilized more.

  In addition, if the first hinge member and the second hinge member have a fitting portion that can rotate relative to each other, the hinge members can rotate around the shaft via the fitting portion. The operation can be smoothed and stabilized.

  Moreover, in the carrier platform mechanism of the transport vehicle according to the present invention, the specific cylinder used in the first cylinder mechanism and the second cylinder mechanism is not particularly limited. Considering that it is a cargo bed, it is preferable to obtain a large output even if it is small, and it is preferable that the first cylinder mechanism and the second cylinder mechanism each include a hydraulic cylinder.

  In this case, a mode in which the hydraulic cylinder of the first cylinder mechanism and the hydraulic cylinder of the second cylinder mechanism are operated by the hydraulic pressure from the common hydraulic unit can be adopted, and the entire hydraulic system can be simplified. However, both hydraulic cylinders need to be configured to be able to operate independently of each other.

  Thus, according to the carrier platform mechanism according to the present invention, the front and rear of the carrier can swing independently, and the front and rear postures of the carrier can be freely combined as required. In addition, a carrier mechanism of a transport vehicle that is extremely convenient and useful for actual use can be easily and reliably realized by adding a simple specific mechanism.

It is a schematic side view which shows the various loading platform attitude | positions in the loading platform mechanism of the transport vehicle which concerns on one embodiment of this invention. FIG. 2 is an enlarged partial vertical sectional view (FIG. 2A) of the loading platform mechanism of the transport vehicle of FIG. 1, and an enlarged vertical sectional view (FIG. 2B) of a common fulcrum mechanism portion (A portion) in FIG. . 2 is a longitudinal sectional view (FIG. 3 (A)), a partial plan view (FIG. 3 (B)) and a side view (FIG. 3 (C)) before assembly of FIG. 3 (A), It is a schematic sectional drawing (Drawing 3 (D)) of the fitting part of 1 hinge member and the above-mentioned 2nd hinge member.

Embodiments of a carrier platform mechanism for a transport vehicle according to the present invention will be described below with reference to the drawings.
FIG. 1 shows a carrier platform mechanism of a transport vehicle according to an embodiment of the present invention, and shows various loading platform postures (FIGS. 1A, 1B, and 1C). In FIG. 1, reference numeral 100 denotes an entire transport vehicle such as a large truck that can load and transport heavy objects such as construction equipment, and 101 denotes the entire loading platform mechanism. The loading platform mechanism 101 includes a loading platform 102 extending in the front-rear direction of the transport vehicle 100, and the loading platform 102 has a divided configuration of a front portion (front loading platform 1) and a rear portion (rear loading platform 2) of the loading platform. Yes.

  The front cargo bed 1 is swung up and down by the first cylinder mechanism 3 with the rear end portion of the front cargo bed 1 as a fulcrum, and the rear cargo bed 2 has a second end with the front end portion of the rear cargo bed 2 as a fulcrum. The second cylinder mechanism 4 is also provided with a link mechanism 5 as shown in FIG. 2 (A). The first cylinder mechanism 3 includes a hydraulic cylinder 6 (shown in FIG. 1A), and the second cylinder mechanism 4 includes a hydraulic cylinder 7 (shown in FIG. 2A). In the first cylinder mechanism 3, the hydraulic cylinder 6 and the hydraulic cylinder 7 of the second cylinder mechanism 4 are provided so as to be able to operate independently of each other, and are operated by hydraulic pressure from a common hydraulic unit (not shown). ing.

  The fulcrum at the rear end of the front cargo bed 1 and the fulcrum at the front edge of the rear cargo bed 2 are constituted by a common fulcrum mechanism 8 that exists at a common position in the front-rear direction of the cargo bed 102. The rear end portion and the front end portion of the rear cargo bed 2 are connected to each other via a common fulcrum mechanism 8 so as to be independently swingable.

In the present embodiment, the common fulcrum mechanism 8 is configured as shown in FIGS.
In this embodiment, the common fulcrum mechanism 8 is configured as a mechanism including a trunnion mechanism 9 as shown in FIGS. 2A and 3A, and the width direction of the loading platform 102 (the width direction of the vehicle) ) And a shaft 12 fixed to the chassis 11 of the transport vehicle via the trunnion frame 10, and a first hinge member 13 and a second hinge member 14 provided around the shaft 12 so as to be rotatable relative to each other. And have. The first hinge member 13 is fixed to the rear end portion of the front cargo bed 1, and the second hinge member 14 is fixed to the front end portion of the rear cargo bed 2.

  As shown in FIG. 3B, the first hinge member 13 and the second hinge member 14 are different from each other in the extending direction of the shaft 12 (that is, the width direction of the loading platform 102 and the width direction of the vehicle). (In the illustrated example, alternately in the extending direction of the shaft 12). FIG. 3B and FIG. 3C show a state before the first hinge member 13 and the second hinge member 14 are assembled to the shaft 12. As shown in FIG. 3D, the first hinge member 13 and the second hinge member 14 are configured such that the first hinge member 13 and the second hinge member 14 are rotatable relative to each other around the shaft 12. It has the fitting part 15 so that it may become.

  In the loading platform mechanism 101 of the transport vehicle 100 according to the present embodiment configured as described above, the front loading platform 1 and the rear loading platform 2 are independently swung by the first cylinder mechanism 3 and the second cylinder mechanism 4. Since it is possible, it becomes possible to freely combine the tilting posture, the horizontal posture, the tilting posture, and the horizontal posture of the rear carrier 2, and the posture of the front carrier 1, the rear carrier 2, and the entire carrier 102 It becomes possible to easily meet various requirements. The fulcrum of the swinging movement of the front cargo bed 1 and the rear cargo bed 2 is configured as a common fulcrum mechanism 8 that exists at a common position in the front-rear direction of the cargo bed 102, and the front cargo bed 1 and the rear part are arranged via the common fulcrum mechanism 8. Since the loading platform 2 is connected so as to be able to swing independently, various postures of the front loading platform 1 and the rear loading platform 2 with the common fulcrum mechanism 8 as a boundary are not desirable between the front loading platform 1 and the rear loading platform 2. It is easily and smoothly performed without causing a step. And, various loading platform postures to meet these various demands are basically by adding a simple mechanism that only adds the first cylinder mechanism 3, the second cylinder mechanism 4, and the common fulcrum mechanism 8, It is easily and reliably realized.

  A common fulcrum mechanism 8 includes a shaft 12 extending in the width direction of the loading platform and fixed to the chassis 11 of the transport vehicle, and a first hinge member 13 and a first hinge member 13 provided around the shaft 12 so as to be rotatable relative to each other. The first hinge member 13 is fixed to the rear end portion of the front cargo bed 1, and the second hinge member 14 is fixed to the front end portion of the rear cargo bed 2, respectively. Therefore, the common fulcrum mechanism 8 can be formed into a compact mechanism, and the independent swinging of the front cargo bed 1 and the rear cargo bed 2 can be performed more easily via the compact common fulcrum mechanism 8. And it will be done smoothly and more reliably.

  Furthermore, by adopting a configuration in which a plurality of first hinge members 13 and second hinge members 14 are provided at different positions in the extending direction of the shaft 12 (the width direction of the cargo bed), a plurality of hinge members 13 and 14 are provided. The front cargo bed 1 and the rear cargo bed 2 are connected to the hinge members 13 and 14 respectively, and the front cargo bed 1 and the rear cargo bed 2 are swung via the plurality of hinge members 13 and 14, respectively. The swinging operation of the loading platform 1 and the rear loading platform 2 is further stabilized.

  Furthermore, since the adjacent first hinge member 13 and second hinge member 14 have a fitting portion 15 that is relatively rotatable with respect to each other, the first hinge member 13 and the second hinge member 13 are provided. The hinge members 14 can smoothly and stably rotate around the shaft 12 via the fitting portion 15. As a result, the swinging operation of the front cargo bed 1 and the rear cargo bed 2 can be performed. It will be further stabilized.

  The above-described embodiment shown in FIGS. 1 to 3 shows an embodiment of the present invention. As long as the embodiment other than the embodiment shown in the drawings satisfies the requirements stipulated in the present invention. Needless to say, it is included in the scope of the present invention.

  The present invention can be applied to any carrier mechanism of a transport vehicle in which independent swinging motions of a front carrier and a rear carrier are desired.

DESCRIPTION OF SYMBOLS 1 Front loading platform 2 Rear loading platform 3 1st cylinder mechanism 4 2nd cylinder mechanism 5 Link mechanism 6, 7 Hydraulic cylinder 8 Common fulcrum mechanism 9 Trunnion mechanism 10 Trunnion frame 11 Chassis 12 Shaft 13 1st hinge member 14 2nd Hinge member 15 fitting part 100 transport vehicle 101 cargo bed mechanism 102 cargo bed

Claims (6)

  A first cylinder mechanism that can be operated independently of each other, and that can swing the front part of the cargo bed with the rear end of the front part as a fulcrum, and the second cylinder mechanism that can swing the rear part of the cargo bed with the front end of the rear part as a fulcrum. The fulcrum at the rear end of the front part of the loading platform and the fulcrum at the front end of the rear part of the loading platform are composed of a common fulcrum mechanism at a common position in the longitudinal direction of the loading platform, and the front of the loading platform. A carrier platform mechanism for a transport vehicle, characterized in that a rear end portion of the carriage and a front end portion of the rear portion of the cargo bed are connected to each other via the common fulcrum mechanism so as to be independently swingable.   The common fulcrum mechanism includes a shaft extending in the width direction of the loading platform and fixed to the chassis of the transport vehicle, and a first hinge member and a second hinge member provided around the shaft so as to be rotatable relative to each other. 2. The transport according to claim 1, wherein the first hinge member is fixed to the rear end portion of the front portion of the cargo bed, and the second hinge member is fixed to the front end portion of the rear portion of the cargo bed. Car bed mechanism.   The platform mechanism of the transport vehicle according to claim 2, wherein a plurality of the first hinge members and the second hinge members are provided at positions different from each other in the extending direction of the shaft.   The carrier platform mechanism according to claim 2 or 3, wherein the first hinge member and the second hinge member have a fitting portion that is relatively rotatable with respect to each other.   The platform mechanism of the transport vehicle according to any one of claims 1 to 4, wherein each of the first cylinder mechanism and the second cylinder mechanism includes a hydraulic cylinder.   The platform mechanism of the transport vehicle according to claim 5, wherein the hydraulic cylinder of the first cylinder mechanism and the hydraulic cylinder of the second cylinder mechanism are operated by a hydraulic pressure from a common hydraulic unit.

Images