Loading platform lifting device, vehicle equipped with loading platform lifting device, and method for manufacturing the vehicle

Abstract

To provide a load stand lifting device which even slightly contributes to increase of a ground height or compactification of components installed in a loading platform lower area, and to provide a vehicle and a manufacturing method of the vehicle.SOLUTION: A load stand lifting device includes: a fixed support member fixed to a vehicle body frame; a connection support member which connects the fixed support member and is arranged so that its longitudinal direction is set to a vehicle width direction; an attachment support member attached to the connection support member; rotation arms each rotatably connected to the attachment support member at a base end part; connection pivot support members each of which pivotally supports a rotation arm tip part; and a load stand supported by the connection pivot support members. The load stand lifting device is provided with an arm connection member which connects lower arms of the rotation arms, and the connection support member is provided at a position higher than a muffler placed below a loading platform of a vehicle.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a platform lifting device equipped with a parallel link mechanism, a vehicle equipped with the platform lifting device, and a method for manufacturing the vehicle. [Background technology]

[0002] A known loading platform lifting device is installed at the rear of a vehicle and raises and lowers the loading platform between the ground and the platform. This device uses two arms, one above the other, that form a parallel link mechanism. The base ends of these arms are pivotable to the vehicle frame via supports provided below the platform.

[0003] A loading platform 97 of a loading platform lifting device (see, for example, Patent Document 1) is raised in the order shown in FIGS. 5(a) to 5(c). The support portion 93 is composed of a connecting pipe 93a installed between a pair of left and right body frames 91 and brackets 93b fixed to both ends of the pipe 93a. The base end of a lower arm 95 is journaled to a lower pivotal portion 95a at the lower portion of the bracket 93b, and the base end of an upper arm 94 is journaled to an upper pivotal portion 94a at the upper portion. The tips of the upper arm 94 and the lower arm 95 are connected to upper connecting portions 94b and 95b of a plate-shaped connecting member 96. A hydraulic cylinder 98 is provided on the base end side of the upper arm 94 and the lower arm 95.

[0004] A parallel link mechanism is formed by the support part 93, upper arm 94, lower arm 95, and connecting member 96, and when the hydraulic cylinder 98 is extended, the load receiving platform 97 supported by the connecting member 96 rises while remaining horizontal. The lower arms 95, which are provided in a pair on the left and right in the width direction of the vehicle, have a predetermined durability and holding force for the load receiving platform 97 via arm connecting pipes 99, each of which has its longitudinal direction in the width direction of the vehicle.

[0005] In this loading platform lifting device 90, as shown in Figure 5(c), when the loading platform 97 is approximately flush with the floor height of the loading platform 92, the front surface portion 94c of the upper arm, the front surface portion 95c of the lower arm, and the front surface portion 96c of the connecting member 96 on the front side of the vehicle are arranged to abut or be close to the loading platform 92. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 11-189088 Summary of the Invention [Problem to be solved by the invention]

[0007] However, the loading platform lifting device configured to be able to lift and lower the loading platform 97 using the parallel link mechanism described above still has room for improvement in relation to other parts mounted on the vehicle.

[0008] First, the platform lifting device, which is supported via a support section below the platform, must utilize the limited space available with the various functional components also installed below the platform. However, the installation of the platform lifting device onto a vehicle is a task carried out by the vehicle manufacturer (chassis manufacturer) in their own factory. Therefore, the vehicle manufacturer must install the platform lifting device in an appropriate location that does not interfere with the function of other existing components, given that the vehicle layout has already been largely determined.

[0009] With regard to the fore-and-aft direction of the vehicle, for example, if the position is to be such that it does not interfere with the gas exhaust device (muffler) or tail lamp, it is customary to position the support member behind the muffler and forward of the tail lamp.

[0010] Next, in terms of the vertical direction, the ground clearance of the loading platform lifting device is determined based on the existing muffler, etc. Specifically, unless the loading platform lifting device is positioned significantly lower than the height of the muffler, etc. that serves as the reference, the minimum ground clearance of the entire vehicle will be maintained at a predetermined level. Therefore, the loading platform lifting device is customarily mounted so that the ground clearance in the vertical direction is approximately the same as that of the muffler, etc.

[0011] However, given the growing expectations for reducing environmental impact in recent years, it is expected that new electrified devices will be added to drive the loading platform lifting device. Furthermore, existing mufflers and other components may also need to be improved in function or enlarged in size to improve the quality of exhaust gases. Given these circumstances, it is thought that there will be a greater need than ever before to utilize the space below the loading platform and install loading platform lifting devices with ample ground clearance.

[0012] The present invention has been made in consideration of these issues, and aims to provide a loading platform lifting device that is not based solely on conventional positions, but that contributes to slightly increasing ground clearance or making mounted objects in the area below the loading platform more compact in response to future changes in vehicle functions, a vehicle equipped with the device, and a method for manufacturing such a vehicle. [Means for solving the problem]

[0013] The solution according to the present invention is as follows. The loading platform lifting device includes a pair of fixed support members fixed to a pair of left and right body frames whose longitudinal direction is the fore-and-aft direction of the vehicle, a connecting support member whose longitudinal direction is the width direction of the vehicle and connects the pair of left and right support members, mounting support members attached to the left and right ends of the connecting support members, a pair of left and right pivot arms whose base ends are rotatably connected to the mounting support members, connecting shaft support members on which the distal ends of the pivot arms are journaled, and a loading platform supported by the connecting shaft support members. Each of the pair of left and right pivot arms has an upper arm and a lower arm, and an arm connecting member whose longitudinal direction is the width direction of the vehicle and connects the lower arms is provided, the connecting support member being positioned higher than a muffler attached below the loading platform of the vehicle. As a result, the loading platform lifting device can be mounted on the rear of the vehicle to avoid interference with the muffler. This design focuses on the fact that a platform lifting device, which includes pivoting arms positioned at the left and right ends of the vehicle in the width direction and a connecting support member between them, occupies a large area below the vehicle platform because the connecting support member is positioned across the entire width of the vehicle. This design effectively utilizes the area between the pivoting arms but without the connecting support member. By positioning the muffler in this area, it becomes possible to utilize the dead space between the platform lifting device and the vehicle's existing muffler, etc. As a result, it is possible to increase the ground clearance of the platform lifting device or compact the mounting area for the platform lifting device in the area below the platform. This design is therefore advantageous for vehicles with low platform heights, where the area below the platform is particularly limited.

[0014] In addition, the arm connecting member may be configured to rotate in conjunction with the raising and lowering operation of the loading platform in a state that can avoid the tail lamp fixed to the rear of the vehicle, and to be positioned approximately vertically below the connecting shaft support member when the loading platform is approximately flush with the loading platform.

[0015] Next, the above-mentioned loading platform lifting device may be mounted on a vehicle having a loading platform provided on the body frame, a muffler provided below the loading platform, and a tail lamp fixed to the rear of the body frame.

[0016] The present invention also covers the following method for manufacturing a vehicle equipped with a loading platform lifting device.

[0017] The method for manufacturing a vehicle equipped with the loading platform lifting device includes a loading platform mounting step of mounting a loading platform on a pair of left and right body frames whose longitudinal direction is the vehicle's fore-and-aft direction, a body frame accessory mounting step of mounting a muffler to the body frame in an area below the loading platform, and a lifting device mounting step of mounting a loading platform lifting device on the body frame after the loading platform mounting step and the body frame accessory mounting step. The lifting device mounting step includes a support part mounting substep of mounting a support part to the body frame, a pivot arm mounting substep of mounting a pair of left and right pivot arms that are rotatable relative to the support parts, and a loading platform mounting substep of pivotally supporting the distal ends of the pivot arms on a connecting pivot support member that supports the loading platform. The support member mounting substep is characterized in that a fixed support member is fixed to each of the pair of left and right body frames, and a connecting support member whose longitudinal direction is the vehicle width direction is fixed to the pair of left and right fixed support members so as to be higher than the muffler.

[0018] Furthermore, the manufacturing method may include fixing the fixed support member at a position where the muffler and the support portion overlap when viewed from the side of the vehicle in the support portion attaching sub-step. [Effects of the Invention]

[0019] According to the present invention, it is possible to realize a configuration in which the installation height of the entire loading platform lifting device is moved upward (increasing ground clearance) by focusing on the connecting support members that occupy a large proportion of the area under the loading platform with the vehicle width direction as the longitudinal direction. Because it utilizes the dead space that is likely to be created by other components (for example, an existing muffler) installed under the loading platform, it is useful for increasing the mounting height, which was previously difficult to achieve, and is an invention that can flexibly respond to functional changes that may occur in the future when viewed from the perspective of the entire vehicle. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a perspective view of a rear portion of a vehicle equipped with a cargo receiving lifting device according to an embodiment of the present invention. [Figure 2] 1A is a side view of a loading platform lifting and lowering device according to an embodiment of the present invention, and FIG. 1B is a rear view of the same loading platform lifting and lowering device. [Figure 3] 4 is a side view showing the lifting and lowering operation of the loading platform of the loading platform lifting and lowering device according to the embodiment of the present invention. FIG. [Figure 4] 1A is a side view of a main part showing a loading platform lifting device according to an embodiment of the present invention, a muffler provided on a vehicle, and a tail lamp, and FIG. 1B is a side view of a main part showing a modified example according to an embodiment of the present invention. [Figure 5] FIG. 10 is a side view of a conventional loading platform lifting device. DETAILED DESCRIPTION OF THE INVENTION

[0021] An example of an embodiment of a loading platform lifting device according to the present invention will be described with reference to the drawings.

[0022] 1(a) is a perspective view of a vehicle equipped with a loading platform lifting device 100 of this embodiment. The loading platform lifting device 100 is mounted below a loading platform 1 at the rear of the vehicle, and has a configuration in which a loading platform 3 is raised and lowered between the ground and the loading platform height by a rotating arm 2.

[0023] The loading platform 1 is mounted on a pair of left and right body frames 4 (consisting of a sub-frame 42 mounted on a main frame 41) with the longitudinal direction of the vehicle extending in the fore-and-aft direction. Support sections 5 that support the pair of left and right pivot arms 2 are connected to each body frame 4. The support sections 5 are composed of fixed support members (frame brackets) 51 fixed to the lower portions of the pair of left and right main frames 41 and suspended slightly downward, connecting support members (first connecting pipes) 52 installed between the left and right frame brackets 51 and with the longitudinal direction of the vehicle width, and mounting support members (mounting members) 53 fixed to both ends of the first connecting pipe 52 and extending upward and downward. As shown in the figure, the first connecting pipe 52 has a length that is approximately equal to the overall length of the loading platform 1 in the width direction.

[0024] A rotatable pivot arm 2, consisting of two arms (a lift arm 21 and a compression arm 22), is pivotally supported on each of the pair of left and right mounting members 53. The upper lift arm 21 has its base end pivoted by a pivot 21a, and the lower compression arm 22 has its base end pivoted by a pivot 22a. These pivots 21a and 22a are both located forward of the first connecting pipe 52. An arm connecting member (second connecting pipe) 8, whose longitudinal direction is the width direction of the vehicle, is installed on the pair of left and right compression arms 22, and this pipe 8 ensures desired left-right synchronization and durability. In addition, the tip ends of each arm 21 and 22 are pivotally supported by pivots 21b and 22b, respectively, to a connecting shaft support member (connecting member) 6, which is made up of three plates welded together.

[0025] The base end of the loading platform 3 is rotatably supported on the lower end of the connecting member 6. The loading platform 3 is raised and lowered while maintaining the horizontal position shown in the figure using a parallel link mechanism consisting of the mounting member 53, lift arm 21, compression arm 22, and connecting member 6. The parallel link mechanism is driven by utilizing the extension and contraction of a hydraulic cylinder 7 provided on the mounting member 53.

[0026] Therefore, between the pair of left and right pivot arms 2 located at both left and right ends in the vehicle width direction, the first pipe 52 and the second pipe 8 are provided in the lower region of the loading platform 1 across the vehicle width direction, excluding the loading platform 3. On the other hand, between the left and right mounting members 53, no members are provided that occupy the entire vehicle width direction, for example, in the front positions (regions where the pivots 21a, 22a are provided).

[0027] Next, the configuration of the parallel link mechanism and the arrangement of the hydraulic cylinder 7 will be specifically explained using Figure 2. Figure 2 shows the state in which the receiving platform 3 has been manually raised after reaching the platform height position. The raised receiving platform 3 is secured by a rotating lever 3a provided on the side of the receiving platform 3 and an engaging piece 1b provided on the side gate 1a.

[0028] The hydraulic cylinders 7 attached to the mounting members 53 are arranged between a pair of mounting members 53, with the barrel side 7a of the hydraulic cylinder 7 pivotally supported on the mounting member 53 and the rod side 7b pivotally supported on the operating arm 23. One end of the operating arm 23 is pivotally supported on the rod side 7b of the hydraulic cylinder 7 and the other end is pivotally supported on a pivot 21a that pivots the base end of the lift arm 21, forming an integral configuration with the lift arm 21. The pivots 21a, 22a at the base ends of the lift arm 21 and compression arm 22 are aligned approximately vertically, and the pivots 21b, 22b at the tip ends are also aligned approximately vertically. The compression arm 22 is aligned inward relative to the lift arm 21 in the vehicle width direction, and as shown in the figure, the arms 21, 22 are configured so that the overlapping area between them is approximately maximized when the loading platform 3 reaches floor height. The ends of both arms refer to the ends that are closest to the loading platform 1 in the illustrated state.

[0029] The operation of the parallel link mechanism will now be described with reference to Figure 3. In Figure 3, the state in which the loading platform 3 has risen to the floor level of the loading platform 1 is shown by a solid line, and the state in which the loading platform 3 is in the middle of rising is shown by a dashed line.

[0030] The hydraulic cylinder 7 is fully extended when the loading platform 3 is at floor height. In other words, when the loading platform 3 is at its lowest position (on the ground), the hydraulic cylinder 7 is fully contracted, and the extension of the hydraulic cylinder 7 causes the operating arm 23 to rotate counterclockwise. As the operating arm 23 rotates, the lift arm 21 and compression arm 22, which constitute the parallel link mechanism, also rotate.

[0031] As shown in the figure, the compression arm 22 rotates upward so as to approach the lift arm 21. When the loading platform 3 reaches its uppermost position, at floor height, the second connecting pipe 8 that connects and supports the left and right compression arms 22 is aligned in a substantially straight line in the vertical direction with the pivots 21b, 22b (connecting member 6). At this time, the loading surface of the loading platform 3 is continuous and substantially flush with the floor surface of the loading platform 1.

[0032] The loading platform lifting / lowering device 100 according to this embodiment is mounted in a limited space below the loading platform 1 and performs the above-described operations. Therefore, the mounting position of the loading platform lifting / lowering device 100 according to this embodiment relative to the vehicle will be specifically described with reference to FIG. 4.

[0033] The lower rear area of the cargo bed 1 is provided with a muffler M1 that is fixed to the body frame 4 and discharges exhaust gases, and a tail lamp R1 that is fixed to the mounting member 53 via an upright mounting stay 401. The muffler M1 of this embodiment occupies a large area below the cargo bed 1 in the fore-and-aft direction of the vehicle. Although not shown, a spare tire is fixed in the space S1 between the muffler M1 and the body frame 4.

[0034] The support portion 5 is provided in an area surrounded by a space S1 in which the muffler M1, tail lamp R1, and spare tire are disposed, as viewed from the side of the vehicle. Specifically, the first connecting pipe 52 is provided at a position that is a distance H1 above the piping M11 of the muffler M1 in the vertical direction. That is, instead of being arranged side by side as in the conventional configuration, the first connecting pipe 52 is positioned so as to overlap the muffler M1 in the fore-and-aft direction of the vehicle as viewed from the side of the vehicle, but the muffler M1 is sandwiched between the front and rear mounting members 53 (see FIG. 1 or 2 ). The second connecting pipe is provided across the width of the vehicle and occupies a large area below the loading platform 1 so as to be higher than the muffler M1, thereby increasing the ground clearance of the loading platform lifting device 100.

[0035] The loading platform lifting and lowering device 100 according to this embodiment and a vehicle equipped with the device 100 are mainly manufactured as follows.

[0036] First, a bed mounting step is performed in which the bed 1 is mounted on the pair of left and right body frames 4, and a body frame equipment mounting step is performed in which the muffler M1 is mounted on the body frame 4 in the area below the bed 1. Both steps are known operations and are often already completed when the vehicle is delivered to the body manufacturer's factory. It does not matter which step is performed first. Furthermore, the body frame equipment mounting step may also include the operation of mounting the tail lamp R1 at the position that will become the rear end of the vehicle.

[0037] Next, after the loading platform mounting step and the body frame equipment mounting step, there is a lifting device mounting step for mounting the loading platform lifting device 100 on the body frame 4, which is carried out in the body frame manufacturer's factory. The lifting device mounting step includes a support part mounting sub-step for mounting the support part 5 on the body frame 4, a pivot arm mounting sub-step for mounting a pair of left and right pivot arms 2 that can pivot freely on the support part 5, and a loading platform mounting sub-step for supporting the tip of the pivot arm 2 on a connecting shaft support member (connecting member) 6 on which the loading platform 3 is supported.

[0038] In the support member mounting sub-step, fixed support members (frame brackets) 51 are fixed to each of the pair of left and right body frames 4, and connecting support members (first connecting pipes) 52, whose longitudinal direction is the vehicle width direction, are fixed to the pair of left and right frame brackets 51 so as to be positioned higher than the muffler M1. The first connecting pipe 52 is fixed so as to be positioned vertically above the existing muffler M1 by a distance H1.

[0039] At this time (in the support portion attaching sub-step), the frame bracket 51 is fixed in a position where the muffler M1 and the support portion 5 overlap when viewed from the side of the vehicle. Specifically, the muffler M1 is included in an area that is the front position of the mounting support member (mounting member) 53. Also, in this embodiment, the tail lamp R1 is already attached to the rear end of the body frame 4 before the support portion attaching sub-step, but the tail lamp R1 may be attached after the support portion 5 is installed. In either case, the support portion 5 can be installed appropriately in an area surrounded by the muffler M1, the tail lamp R1, and the space S1 where the spare tire is located, without interfering with each other.

[0040] In this embodiment, the configuration of the support portion 5 is cleverly utilized. The frame bracket 51, which is vertically installed below the body frame 4, ensures space for storing a spare tire near the underside of the body frame 4, near the center of the vehicle. Furthermore, by setting the height of the first connecting pipe 52, to which this frame bracket 51 is connected, as described above, interference with the muffler M1, which occupies a large space in the front-to-rear direction below the cargo bed 1, can be avoided. Furthermore, since the first connecting pipe 52 is located lower than the tail lamp R1, interference can also be avoided. The first connecting pipe 52, which extends across the vehicle width, is located at the rear of the support portion 5, and a wide open area is ensured across the vehicle width at the front of the support portion 5. This allows maximum utilization of the relative positional relationship with the muffler M1, spare tire, and other components located further forward of the support portion 5.

[0041] Because the first connecting pipe 52 located at the rear of the tail lamp R1 is close to the tail lamp R1, the compression arms 22 are configured so that the second connecting pipe 8 does not interfere with the lifting and lowering operation of the loading platform 3. The second connecting pipe 8, which is installed on the left and right compression arms 22, can be raised and lowered around a pivot 22a in the direction of arrow A1. The pivot 22a is offset forward from the first connecting pipe 52, thereby ensuring sufficient arm length. Because the tail lamp R1 must ensure a useful illumination range and illumination angle, it is mounted almost at the rear end of the vehicle as shown in the figure to avoid obstruction of the illuminated light. Even in this position, the compression arms 22 can be long enough not to interfere with the second connecting pipe 8. Furthermore, when the loading platform 3 reaches the floor height of the loading platform 1, it can be positioned so that it is close to the floor of the loading platform 1 without any gaps, and the above-mentioned pivots 21b, 22b and the second connecting pipe 8 can be aligned vertically, specifically, positioned approximately vertically above the tail lamp R1.

[0042] Therefore, the loading platform lifting device 100 of this embodiment is configured to increase ground clearance in the area below the loading platform 1, utilize the available space in the front-to-back direction, maximize the illumination performance of the tail lamp R1, and further ensure that the floor surface of the loading platform 1 and the loading platform 3 are approximately flush with each other through stable rotation of the loading platform 3.

[0043] In this embodiment, the first connecting pipe 52 is provided above the piping M11 of the muffler M1. To prevent the tail lamp R1 and other devices from becoming too hot due to exhaust gas, the piping M11 of the muffler M1 is configured to slope downward toward its tip, discharging exhaust gas downward at the rear of the vehicle. The first connecting pipe 52 is provided in the space (at a vertical height H1) created by the downward slope of the piping, thereby increasing the margin for interference with the muffler M1. In this embodiment, the first connecting pipe 52 is located near the exhaust port of the piping M11, but it may also be located closer to the front of the vehicle or further forward.

[0044] As described above, the configuration and manufacturing method according to this embodiment are extremely effective for a vehicle manufacturer that performs the lifting device installation step after the bed mounting step and the body frame equipment mounting step, because the enclosed area described above is already a limited area at the start of the lifting device installation step, and the open area at the front position of the support part 5 is utilized as an overlap area with the muffler M1, and the first connecting pipe 52 is positioned above the muffler M1, thereby ensuring ground clearance. Such a configuration and manufacturing method also leads to a compact installation space for the bed lifting device 100, and is particularly useful for low-floor vehicles where the height from the ground to the bed is limited.

[0045] 4(a), the loading platform lifting device 100 according to this embodiment may be configured not only as shown in FIG. 4(a) but also as shown in FIG. 4(b), in a position that does not overlap with the muffler M101 when viewed from the side of the vehicle, that is, a position that is rearward of the muffler M101 but at a height that is vertically higher than the muffler M101. By positioning the loading platform lifting device 100 at such a height, the ground clearance of the loading platform lifting device 100 can be increased compared to a conventional configuration in which the loading platform lifting device 100 is mounted at the same height as the muffler M101. This also helps to effectively utilize space when the loading platform lifting device 100 is mounted on the vehicle, in conjunction with new electrified devices that may be installed in the future.

[0046] The present invention is not limited to the above-described embodiment, but can be applied to any loading platform lifting device having a support part arranged with the vehicle width direction as the longitudinal direction, such as the first connecting pipe 52, and any vehicle equipped with such loading platform lifting device. [Industrial Applicability]

[0047] The present invention is useful for a platform lifting device having a parallel link mechanism. [Explanation of symbols]

[0048] 1 Cargo bed 2 rotating arms 3 Loading platform 4 Body frame 5 Support part 6 Connecting member (connecting shaft support member) 7 Hydraulic Cylinders 8 Second connecting pipe (arm connecting member) 21 Lift arm (upper arm) 22 Compression arm (lower arm) 41 Mainframe 42 subframe 51 Frame bracket (fixed support member) 52 First connecting pipe (connection support member) 53 Mounting member (mounting support member) M1 muffler (gas exhaust device) M11 piping (gas exhaust device) R1 tail lamp

Claims

1. a pair of left and right fixed support members fixed to a pair of left and right body frames, each of which has a longitudinal direction in the front-rear direction of the vehicle, below the loading platform of the vehicle; a connecting support member having a longitudinal direction in the vehicle width direction that connects the pair of left and right fixed support members; Mounting support members attached to left and right end portions of the connecting support member, respectively; a pair of left and right pivot arms whose base ends are pivotally connected to the mounting support members, respectively; a connecting shaft support member on which the tip ends of the rotating arms are supported; A load receiving platform supported by the connecting shaft support member; Equipped with Each of the pair of left and right rotating arms has an upper arm and a lower arm, an arm connecting member having a longitudinal direction in the vehicle width direction that connects the lower arms together is provided; The mounting support member is provided at a height that overlaps with the piping of a muffler that has a main body attached to the underside of the vehicle bed and a piping that extends from the main body toward the rear of the vehicle and is thinner than the main body, and the connecting support member is provided at a position that is further rearward of the main body of the muffler attached to the underside of the vehicle bed and higher than the piping, and is mounted on the rear of the vehicle so as to be able to avoid interference with the muffler. A loading platform lifting device characterized by the above.

2. The arm connecting member is rotated in association with the lifting and lowering operation of the loading platform in a state in which it can avoid a tail lamp fixed to the rear of the vehicle, and is positioned approximately vertically below the connecting shaft support member when the loading platform is approximately flush with the loading platform. The loading platform lifting device according to claim 1 .

3. a loading platform provided on the body frame; a muffler provided below the loading platform; a tail lamp fixed to a rear portion of the body frame; It is equipped with A vehicle equipped with the loading platform lifting device according to claim 1 or 2.

4. a loading platform mounting step of mounting a loading platform on a pair of left and right body frames with the longitudinal direction of the vehicle being the fore-and-aft direction; a body frame equipment mounting step of mounting a muffler to the body frame in an area below the loading platform; and a lifting device mounting step of mounting a loading platform lifting device on the body frame after the loading platform mounting step and the body frame equipment mounting step. A method for manufacturing a vehicle equipped with the loading platform lifting device, comprising: The lifting device mounting step includes: a support portion attaching substep of attaching a support portion to the body frame in an area below the loading platform; a pivot arm mounting substep of mounting a pair of left and right pivot arms rotatably to the support portion; a load receiving platform mounting sub-step for pivotally supporting the tip end of the pivot arm on a connecting pivot support member on which the load receiving platform is supported, The support portion includes a fixed support member, an attachment support member, and a connecting support member; In the support portion mounting sub-step, the fixed support members are fixed to the pair of left and right vehicle body frames at positions where the main body of the muffler and the mounting support members overlap when viewed from the side of the vehicle, and the connecting support member, whose longitudinal direction is the vehicle width direction, is fixed to the pair of left and right fixed support members so as to be at a position higher than the piping portion of the muffler. A method for manufacturing a vehicle equipped with a loading platform lifting device, comprising:

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