Multiple-purpose vehicle
A divided exhaust pipe cover system with support members and tightening bands simplifies attachment and enhances security against loosening, addressing the challenges of conventional covers in multipurpose vehicles.
Patent Information
- Application Number
- JP2024061329
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-04-05
- Publication Date
- 2025-10-17
AI Technical Summary
Conventional exhaust pipe covers for multipurpose vehicles are difficult to attach and prone to loosening due to vibration, especially when covering multiple upstream exhaust pipe sections individually.
The exhaust pipe cover is divided into two separate covers that are attached across multiple exhaust pipe sections using support members and tightening bands, making attachment easier and less likely to loosen.
The solution allows for easy and secure attachment of the exhaust pipe cover, reducing the likelihood of it coming loose, even under vibration, while effectively covering the exhaust pipe sections.
Smart Images

Figure 2025158614000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a utility vehicle. [Background technology]
[0002] As shown in Patent Document 1, there is a multipurpose vehicle equipped with a cargo bed provided at the rear of the vehicle body, an engine provided below the cargo bed, and an exhaust pipe that discharges exhaust from the engine, which has multiple upstream exhaust pipe sections extending from the exhaust section of the engine and running along the width direction of the vehicle body, and a downstream exhaust pipe section that joins the multiple upstream exhaust pipe sections and runs along the fore-and-aft direction of the vehicle body behind the multiple upstream exhaust pipe sections. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent No. 6655970 Summary of the Invention [Problem to be solved by the invention]
[0004] In the above-mentioned multipurpose vehicle, an exhaust pipe cover is attached to the exhaust pipe and held by the exhaust pipe to cover the exhaust pipe, thereby suppressing heat transfer from the exhaust pipe to the cargo bed located above the exhaust pipe and to engine peripheral components located around the exhaust pipe. However, conventional exhaust pipe covers for covering exhaust pipes are configured to cover multiple upstream exhaust pipe sections individually with multiple corresponding cover sections, making it difficult and time-consuming to attach the exhaust pipe cover to the exhaust pipe. Furthermore, while some exhaust pipe covers are fastened with bolts, there is a concern that the bolts may loosen in exhaust pipes that are subject to large amounts of vibration.
[0005] The present invention provides a multi-purpose vehicle in which an exhaust pipe cover can be easily attached to an exhaust pipe so that it is less likely to come loose. [Means for solving the problem]
[0006] The multi-purpose vehicle according to the present invention comprises: The vehicle is provided with a loading platform provided at the rear of the vehicle body, an engine provided below the loading platform, an exhaust pipe having a plurality of upstream exhaust pipe sections extending from an exhaust section of the engine and extending along the width direction of the vehicle body, and a downstream exhaust pipe section that joins the plurality of upstream exhaust pipe sections and extends in the fore-and-aft direction of the vehicle body behind the plurality of upstream exhaust pipe sections, and through which exhaust gas from the engine is discharged, and an exhaust pipe cover that collectively covers the plurality of upstream exhaust pipe sections and the downstream exhaust pipe section, the exhaust pipe cover being divided into two separate exhaust pipe covers in the radial direction of each of the upstream exhaust pipe sections and the downstream exhaust pipe sections, The exhaust pipe cover is provided with a first support member that is attached across the upstream exhaust pipe section and supports the two divided exhaust pipe covers from the inside, and a second support member that is attached to the downstream exhaust pipe section and supports the two divided exhaust pipe covers from the inside, a first tightening band that is fitted onto the outer periphery of the two divided exhaust pipe covers at the positions that correspond to the first support member and tightens and fixes the two divided exhaust pipe covers to the first support member, and a second tightening band that is fitted onto the outer periphery of the two divided exhaust pipe covers at the positions that correspond to the second support member and tightens and fixes the two divided exhaust pipe covers to the second support member.
[0007] With this configuration, the exhaust pipe cover can be attached to the exhaust pipe simply by attaching two divided exhaust pipe covers across multiple upstream and downstream exhaust pipe sections. In other words, the exhaust pipe cover can be attached to the exhaust pipe with little effort, simply by attaching the two divided exhaust pipe covers, making it easy to attach the exhaust pipe cover to the exhaust pipe. The exhaust pipe covers are fixed to the exhaust pipe by fastening the two split exhaust pipe covers to the first support member with a first tightening band, and fastening the two split exhaust pipe covers to the second support member with a second tightening band. In other words, by using fastening means that are difficult to loosen, such as fastening by the first tightening band and the second tightening band, the exhaust pipe covers can be attached to the exhaust pipe in a manner that is difficult to loosen.
[0008] In the present invention, It is preferable that the exhaust system includes a muffler connected to the downstream exhaust pipe portion, a muffler cover that covers the muffler that is divided into two split muffler covers, one of the two split muffler covers being integrally molded with one of the two split exhaust pipe covers, and the other of the two split muffler covers being integrally molded with the other of the two split exhaust pipe covers, a third support member that is attached to the exhaust port portion of the muffler and supports the two split muffler covers from the inside, and a third tightening band that is fitted onto the outer periphery of the two split muffler covers at the portion that corresponds to the third support member and tightens and fixes the two split muffler covers to the third support member.
[0009] According to this configuration, the first split muffler cover can be attached together with the first split exhaust pipe cover, and the second split muffler cover can be attached together with the second split exhaust pipe cover. The two split muffler covers are fastened and fixed to the third support member with the third fastening band, so the muffler cover can be attached to the muffler with little effort and is less likely to come loose.
[0010] In the present invention, It is preferable that one of the two divided exhaust pipe covers is configured to cover the upstream exhaust pipe section and the downstream exhaust pipe section from above, and the other of the two divided exhaust pipe covers is configured to cover each of the upstream exhaust pipe section and the downstream exhaust pipe section from below.
[0011] With this configuration, one of the divided exhaust pipe covers can be placed over the upstream and downstream exhaust pipe sections from above the upstream and downstream exhaust pipe sections, where it is easy to secure space for operation, and the other divided exhaust pipe cover can be placed over the upstream and downstream exhaust pipe sections from below the upstream and downstream exhaust pipe sections, where it is easy to secure space for operation, making it easy to attach the exhaust pipe covers to the exhaust pipes.
[0012] In the present invention, It is preferable that the plurality of upstream exhaust pipe sections are aligned in the vertical direction.
[0013] With this configuration, the divided exhaust pipe cover is smaller in size in the horizontal direction and easier to handle than when multiple upstream exhaust pipe sections are lined up horizontally, making it easier to attach the exhaust pipe cover to the exhaust pipe.
[0014] In the present invention, The muffler is preferably a muffler for exhaust gas purification treatment.
[0015] According to this configuration, the muffler cover can be attached to the muffler for exhaust gas purification treatment with little effort so as not to come loose. [Brief explanation of the drawings]
[0016] [Figure 1] FIG. 2 is a side view of the multipurpose vehicle as seen from the left side. [Figure 2] FIG. 2 is a plan view of the exhaust pipe cover, the first muffler cover, and the second muffler cover. [Figure 3] FIG. 2 is a side view of the exhaust pipe cover, the first muffler cover, and the second muffler cover as viewed from the left side. [Figure 4] FIG. 2 is a perspective view of an exhaust pipe and a first muffler. [Figure 5] FIG. 2 is a perspective view of the first divided exhaust pipe cover and the second divided exhaust pipe cover in a removed state. [Figure 6] FIG. 2 is a perspective view of the first divided exhaust pipe cover and the second divided exhaust pipe cover in an attached state. [Figure 7] FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. 2. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 2. [Figure 9] 9 is a cross-sectional view taken along the line IX-IX in FIG. 2. [Figure 10] FIG. 2 is a perspective view of the upper cover and the lower cover in a removed state. [Figure 11] FIG. 2 is a perspective view of the upper cover and the lower cover in an attached state. [Figure 12] 1 is a cross-sectional view taken along the line XII-XII in FIG. 2. DETAILED DESCRIPTION OF THE INVENTION
[0017] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described with reference to the accompanying drawings. In the following description, with regard to the traveling body of the multi-purpose vehicle, the direction of arrow F shown in Figures 1, 2, and 3 will be referred to as the "front direction of the body," the direction of arrow B shown in Figures 1, 2, and 3 will be referred to as the "rear direction of the body," the direction of arrow U shown in Figures 1 and 3 will be referred to as the "upward direction of the body," the direction of arrow D shown in Figures 1 and 3 will be referred to as the "downward direction of the body," the direction toward the front of the page in Figure 1 and the direction of arrow L shown in Figure 2 will be referred to as the "leftward direction of the body," and the direction toward the back of the page in Figure 1 and the direction of arrow R in Figure 2 will be referred to as the "rightward direction of the body." The left-right direction of the body corresponds to the width direction of the body.
[0018] [Overall configuration of multipurpose vehicle] The utility vehicle shown in FIG. 1 is used for multiple purposes, such as transporting luggage and recreation. The utility vehicle is equipped with a vehicle body 4 having a body frame 1, a pair of left and right front wheels 2 steerably and drivably held at the front of the body frame 1, and a pair of left and right rear wheels 3 drivably held at the rear of the body frame 1. A passenger section 5 is provided between the front wheels 2 and the rear wheels 3 on the vehicle body 4. The passenger section 5 is equipped with a front passenger section 5A and a rear passenger section 5B, and a rope 6 that surrounds the passenger space of the front passenger section 5A and the passenger space of the rear passenger section 5B. The front passenger section 5A is equipped with a driver's seat 7 and a steering wheel 8 that steers the front wheels 2. A cargo bed 9 and a driving section 10 are provided at the rear of the vehicle body.
[0019] [Motor unit] As shown in FIG. 1, the prime mover 10 is provided below the loading platform 9. As shown in FIGS. 2 and 3, the prime mover 10 is equipped with an engine 11, a continuously variable transmission 12 to which the output of the engine 11 is input and which continuously changes the speed of the input power, and a transmission 13 to which the output of the continuously variable transmission 12 is input and which changes the speed of the input power using a gear transmission and outputs it toward the front wheels 2 and the rear wheels 3. The continuously variable transmission 12 is connected to a side portion of the engine 11 and a side portion of the transmission 13. In the continuously variable transmission 12, the speed of the input power is changed by an endless rotating belt (not shown) and a belt pulley (not shown) whose belt winding diameter can be changed. The transmission 13 is located behind the engine 11.
[0020] As shown in Fig. 2, an exhaust pipe 14 extends from the engine 11, a first muffler 15 is connected to the exhaust pipe 14, and a second muffler 16 is connected to the first muffler 15. As shown in Fig. 3, mounting portions 16b provided at two locations on the lower rear portion of the second muffler 16 are engaged with supports 13a provided on the transmission 13, and the second muffler 16 is held by the transmission 13 at its rear. Exhaust gas from the engine 11 is discharged through the exhaust pipe 14 to the first muffler 15, where it is purified by a catalyst. Exhaust gas discharged from the first muffler 15 is introduced into the second muffler 16, where it is silenced and discharged from an exhaust pipe 16a of the second muffler 16 (see Figs. 2 and 3).
[0021] [Exhaust pipe] 2 and 4, the exhaust pipe 14 includes two upstream exhaust pipe sections 17 extending separately from the two exhaust sections 11a of the engine 11, and one downstream exhaust pipe section 18 where the two upstream exhaust pipe sections 17 join and are connected to the first muffler 15. The downstream exhaust pipe section 18 is provided with a CO2 sensor 19 that detects carbon dioxide in the exhaust of the engine 11.
[0022] Each of the two upstream exhaust pipe sections 17 extends from the exhaust section 11a of the engine 11 toward the front of the vehicle body, then curves laterally to the left of the vehicle body, extending along the vehicle width direction, then extends in the vehicle width direction, then curves rearward of the vehicle body, and extends along the vehicle front-rear direction to reach the downstream exhaust pipe section 18. The two upstream exhaust pipe sections 17 are aligned in the vertical direction of the vehicle body. More specifically, each of the two upstream exhaust pipe sections 17 is formed so that its starting end 17a and terminal end 17b are aligned along the vehicle front-rear direction, and its intermediate section 17c, located between the starting end 17a and terminal end 17b, is aligned along the vehicle width direction. The two upstream exhaust pipe sections 17 are aligned in the vertical direction of the vehicle body at the intermediate section 17c and terminal end 17b. However, the two upstream exhaust pipe sections 17 may be aligned in the vehicle front-rear direction or the vehicle width direction.
[0023] As shown in FIG. 3, the downstream exhaust pipe section 18 extends in the front-rear direction of the vehicle body rearward of the two upstream exhaust pipe sections 17.
[0024] [Exhaust pipe cover, first muffler cover] As shown in Figures 2 and 3, the exhaust pipe 14 is covered by an exhaust pipe cover 20, and is configured so that the transfer of heat radiated from the exhaust pipe 14 to the cargo bed 9 and the like is suppressed by the exhaust pipe cover 20. The first muffler 15 is covered by a first muffler cover 21, and is configured so that the transfer of heat radiated from the first muffler 15 to the cargo bed 9 and the like is suppressed by the first muffler cover 21. As shown in Figures 2, 3 and 11, the second muffler 16 is covered by a second muffler cover 22, and is configured so that the transfer of heat radiated from the second muffler 16 to the cargo bed 9 and the like is suppressed by the second muffler cover 22.
[0025] 2 and 3, the exhaust pipe cover 20 that covers the exhaust pipe 14 is configured to collectively cover the two upstream exhaust pipe sections 17 and the two downstream exhaust pipe sections 18. In this embodiment, the exhaust pipe cover 20 is configured to cover the middle section 17c and the terminal section 17b of the upstream exhaust pipe section 17 of each of the two upstream exhaust pipe sections 17, and to cover the entire downstream exhaust pipe section 18 of the downstream exhaust pipe section 18, but the exhaust pipe cover 20 may also cover the entirety of each of the two upstream exhaust pipe sections 17.
[0026] 3 and 5, the exhaust pipe cover 20 is divided into two divided exhaust pipe covers 23 in the radial direction of each of the upstream exhaust pipe section 17 and the downstream exhaust pipe section 18. In this embodiment, the exhaust pipe cover 20 is divided into two divided exhaust pipe covers 23 in the radial direction of each of the upstream exhaust pipe section 17 and the downstream exhaust pipe section 18 and in the vertical direction.
[0027] In the following description, one of the two divided exhaust pipe covers 23 will be referred to as the first divided exhaust pipe cover 23a, and the other of the two divided exhaust pipe covers 23 will be referred to as the second divided exhaust pipe cover 23b.
[0028] 3, the first divided exhaust pipe cover 23a is configured to cover the upstream exhaust pipe section 17 and the downstream exhaust pipe section 18 from above, and the second divided exhaust pipe cover 23b is configured to cover the upstream exhaust pipe section 17 and the downstream exhaust pipe section 18 from below. A sensor hole through which the CO2 sensor 19 protrudes is formed in the first divided exhaust pipe cover 23a.
[0029] 3 and 5, the first muffler cover 21 that covers the first muffler 15 is divided into two separate muffler covers 24 in the radial direction of the first muffler 15. In this embodiment, the first muffler cover 21 is divided into two separate muffler covers 24 in the radial direction of the first muffler 15 and in the up-down direction.
[0030] In the following description, one of the two divided muffler covers 24 will be referred to as the first divided muffler cover 24a, and the other of the two divided muffler covers 24 will be referred to as the second divided muffler cover 24b.
[0031] As shown in Figure 3, first split muffler cover 24a is configured to cover first muffler 15 from above, and second split muffler cover 24b is configured to cover first muffler 15 from below. As shown in Figures 3, 5 and 6, exhaust port cover 24c that covers exhaust port portion 15a of first muffler 15 from below is integrally formed at the rear of second split muffler cover 24b.
[0032] As shown in FIG. 4, the first divided muffler cover 24a is integrally molded with the first divided exhaust pipe cover 23a, and the second divided muffler cover 24b is integrally molded with the second divided exhaust pipe cover 23b.
[0033] The exhaust pipe cover 20 is attached to the exhaust pipe 14, and the first muffler cover 21 is attached to the first muffler 15 based on the attachment structure shown in FIG. 5 and the like.
[0034] That is, as shown in FIG. 5, a first support member 25 is attached across the two upstream exhaust pipe sections 17, a second support member 26 is attached to the downstream exhaust pipe section 18, and a third support member 27 is attached to the exhaust port section 15a of the first muffler 15.
[0035] 3 and 6, the first support member 25 is formed in an annular shape and located around the outer periphery of the intermediate portions 17c of the two upstream exhaust pipe sections 17. More specifically, the first support member 25 is divided into two first divided support members in the circumferential direction. A connecting portion 25a provided on each of the two first divided support members is connected to the intermediate portions 17c of the two upstream exhaust pipe sections 17, and the first support member 25 is supported by the two upstream exhaust pipe sections 17 via the connecting portions 25a. The connecting portion 25a is connected to the intermediate portions 17c by welding.
[0036] 4 and 7, the second support member 26 is formed in an annular shape and positioned around the outer periphery of the downstream exhaust pipe section 18. More specifically, the second support member 26 is divided into two second divided support members in the circumferential direction. A connecting portion 26a provided on each of the two second divided support members is connected to the two downstream exhaust pipe sections 18, and the second support member 26 is supported by the downstream exhaust pipe section 18 via the connecting portions 26a. The connecting portion 26a is connected to the downstream exhaust pipe section 18 by welding.
[0037] 4 and 9, the third support member 27 is formed in an annular shape and located around the outer periphery of the exhaust port portion 15a of the first muffler 15. More specifically, the third support member 27 is divided into two third divided support members in the circumferential direction. A connecting portion 27a provided on each of the two third divided support members is connected to the exhaust port portion 15a, and the third support member 27 is supported by the first muffler 15 via the connecting portion 27a. The connecting portion 27a is connected to the exhaust port portion 15a by welding.
[0038] As shown in Figures 2 and 3, a first tightening band 31 and a second tightening band 32 are provided for attaching the exhaust pipe cover 20 to the exhaust pipe 14, and a third tightening band 33 is provided for attaching the first muffler cover 21 to the first muffler 15, and the exhaust pipe cover 20 and the first muffler cover 21 are configured to be attached to the exhaust pipe 14 and the first muffler 15 as shown in Figures 2, 3, 7, 8 and 9.
[0039] That is, the first divided exhaust pipe cover 23a is placed over the upstream exhaust pipe section 17 and the downstream exhaust pipe section 18 from above, and the inner circumferential portion of the first divided exhaust pipe cover 23a is brought into contact with the first support member 25 and the second support member 26, so that the first divided exhaust pipe cover 23a is supported from the inside by the first support member 25 and the second support member 26. The second divided exhaust pipe cover 23b is placed over the upstream exhaust pipe section 17 and the downstream exhaust pipe section 18 from below, and the inner circumferential portion of the second divided exhaust pipe cover 23b is brought into contact with the first support member 25 and the second support member 26, so that the second divided exhaust pipe cover 23b is supported from the inside by the first support member 25 and the second support member 26.
[0040] As shown in Fig. 7, a first tightening band 31 is fitted over the outer periphery of a portion of the first divided exhaust pipe cover 23a that corresponds to the first support member 25 and the outer periphery of a portion of the second divided exhaust pipe cover 23b that corresponds to the first support member 25, and the first tightening band 31 is tightened with tightening screws 31a, thereby fastening the first divided exhaust pipe cover 23a and the second divided exhaust pipe cover 23b to the first support member 25 with the first tightening band 31. As shown in Fig. 8, a second tightening band 32 is fitted over the outer periphery of a portion of the first divided exhaust pipe cover 23a that corresponds to the second support member 26 and the outer periphery of the second divided exhaust pipe cover 23b that corresponds to the second support member 26, and the second tightening band 32 is tightened with tightening screws 32a, thereby fastening the first divided exhaust pipe cover 23a and the second divided exhaust pipe cover 23b to the second support member 26 with the second tightening band 32. The exhaust pipe cover 20 is attached to the exhaust pipe 14 by a first tightening band 31, a first support member 25, a second tightening band 32, and a second support member 26. As shown in Figures 6, 7, and 8, the first split exhaust pipe cover 23a is provided with a receiving member 28 that receives the first tightening band 31 and the second tightening band 32 from the outside to prevent misalignment.
[0041] The first divided muffler cover 24a is placed over the first muffler 15 from above, and the inner circumferential portion of the first divided muffler cover 24a is brought into abutment against the third support member 27 so that the third support member 27 supports the first divided muffler cover 24a from the inside. This is done at the same time that the first divided exhaust pipe cover 23a is placed over the upstream exhaust pipe section 17 and the downstream exhaust pipe section 18 and supported by the first support member 25 and the second support member 26. The second divided muffler cover 24b is placed over the first muffler 15 from below, and the inner circumferential portion of the second divided muffler cover 24b is brought into abutment against the third support member 27 so that the third support member 27 supports the second divided muffler cover 24b from the inside. This is done at the same time that the second divided exhaust pipe cover 23b is placed over the upstream exhaust pipe section 17 and the downstream exhaust pipe section 18 and supported by the first support member 25 and the second support member 26.
[0042] 2, 3, and 9, a third tightening band 33 is fitted over the outer periphery of the portion of first divided muffler cover 24a that corresponds to third support member 27 and the outer periphery of the portion of second divided muffler cover 24b that corresponds to third support member 27, and the third tightening band 33 is tightened with tightening screws 33a (see FIG. 8) to fasten first divided muffler cover 24a and second divided muffler cover 24b to third support member 27 with the third tightening band 33. The first muffler cover 21 is attached to the first muffler 15 by the second tightening band 32, second support member 26, third tightening band 33, and third support member 27. As shown in FIGS. 6 and 9, a receiving member 29 is provided on first divided muffler cover 24a that receives third tightening band 33 from the outside to prevent displacement.
[0043] [Second muffler cover] The second muffler cover 22 that covers the second muffler 16 is divided into an upper cover 35 and a lower cover 36, as shown in FIG.
[0044] 11 and 12, the upper cover 35 is formed so as to be positioned around the upper part of the second muffler 16 and along the upper part. As shown in Figures 10, 12, etc., upper cover support portions 37 are provided at multiple locations on the outer periphery of the upper part of the second muffler 16, and the upper cover 35 is configured to be attached to the multiple upper cover support portions 37 with connecting bolts 38. The upper cover 35 is configured to cover the upper part of the second muffler 16 while being held by the second muffler 16.
[0045] As shown in Figures 3 and 12, the lower cover 36 is configured to be located below the lower part of the second muffler 16. As shown in Figures 10 and 12, etc., lower cover support portions 39 are provided at multiple locations on the outer periphery of the lower part of the second muffler 16, and the lower cover 36 is configured to be attached to the multiple lower cover support portions 39 with connecting bolts 40. The lower cover 36 is configured to cover the lower part of the second muffler 16 while being held by the second muffler 16.
[0046] 12, the upper cover 35 and the lower cover 36 are configured to be attached to the second muffler 16 individually in a separated state, and a gap 41 is formed between the upper cover 35 and the lower cover 36. Heat radiated from the second muffler 16 escapes to the outside of the second muffler cover 22 through the gap 41.
[0047] 2, the length L1 of the upper cover 35 in the longitudinal direction of the second muffler 16 is set to be longer than the length L2 of the second muffler 16, and the length L3 of the lower cover 36 in the longitudinal direction of the second muffler 16 is set to be shorter than the length L2 of the second muffler 16. The upper cover 35 covers the second muffler 16 over the entire longitudinal length of the second muffler 16. In contrast, the lower cover 36 covers the second muffler 16 over an area shorter than the entire longitudinal length of the second muffler 16.
[0048] 2, the lower cover 36 is configured to be located in correspondence with a portion of the second muffler 16 that is located on the front end side of the second muffler 16 with respect to the center C in the longitudinal direction of the second muffler 16. The lower cover 36 covers the lower portion of the portion of the second muffler 16 on the front end side where exhaust gas from the engine 11 is introduced and where the temperature is likely to rise.
[0049] [Another embodiment] (1) In the above embodiment, the first divided exhaust pipe cover 23a and the second divided exhaust pipe cover 23b are formed integrally with the first divided muffler cover 24a and the second divided muffler cover 24b, but this is not limited thereto, and the first divided exhaust pipe cover 23a and the second divided exhaust pipe cover 23b may be stand-alone covers that are not formed integrally with the first divided muffler cover 24a and the second divided muffler cover 24b.
[0050] (2) In the above embodiment, the first divided exhaust pipe cover 23a is configured to cover the upstream exhaust pipe section 17 and the downstream exhaust pipe section 18 from above, and the second divided exhaust pipe cover 23b is configured to cover the upstream exhaust pipe section 17 and the downstream exhaust pipe section 18 from below, but the first divided exhaust pipe cover 23a and the second divided exhaust pipe cover 23b may cover the upstream exhaust pipe section 17 and the downstream exhaust pipe section 18 from the sides. Also, the first divided muffler cover 24a is configured to cover the first muffler 15 from above, and the second divided muffler cover 24b is configured to cover the first muffler 15 from below, but the first divided muffler cover 24a and the second divided muffler cover 24b may cover the first muffler 15 from the sides.
[0051] (3) In the above embodiment, the first muffler 15 purifies the exhaust gas, but the present invention is not limited to this and may be configured to silence the exhaust gas.
[0052] (4) In the above embodiment, two upstream exhaust pipe sections 17 are provided, but the present invention is not limited to this and three or more upstream exhaust pipe sections 17 may be provided.
[0053] (5) In the above embodiment, the upstream exhaust pipe sections 17 are arranged in the vertical direction of the vehicle body, but they may also be arranged in the longitudinal direction of the vehicle body or in the lateral direction of the vehicle body.
[0054] (6) In the above embodiment, the second muffler cover 22 is provided, but the second muffler cover 22 may not be provided. [Industrial Applicability]
[0055] The present invention is applicable to multipurpose vehicles that have an engine located below the cargo bed, and an exhaust pipe that has a plurality of upstream exhaust pipe sections extending from the exhaust section of the engine and running along the width direction of the vehicle body, and a downstream exhaust pipe section that joins the plurality of upstream exhaust pipe sections and extends in the fore-and-aft direction of the vehicle body behind the plurality of upstream exhaust pipe sections. [Explanation of symbols]
[0056] 9 Cargo bed 11 Engine 11a Exhaust section 14 Exhaust pipe 15 First muffler 15a Exhaust port 17 Upstream exhaust pipe section 18 Downstream exhaust pipe section 20 Exhaust pipe cover 21 First muffler (muffler) 23 Split exhaust pipe cover 24-section muffler cover 25 First support member 26 Second support member 27 Third support member 31 First tightening band 32 Second tightening band 33 Third tightening band
Claims
1. A loading platform provided at the rear of the vehicle body, an engine provided below the bed; an exhaust pipe that discharges exhaust gas from the engine, the exhaust pipe including: a plurality of upstream exhaust pipe sections extending from an exhaust section of the engine and extending along the lateral width direction of the vehicle body; and a downstream exhaust pipe section that joins the plurality of upstream exhaust pipe sections and extends in the longitudinal direction of the vehicle body rearward of the plurality of upstream exhaust pipe sections; an exhaust pipe cover that collectively covers the plurality of upstream exhaust pipe sections and the downstream exhaust pipe section, the exhaust pipe cover is divided into two divided exhaust pipe covers in the radial direction of each of the upstream exhaust pipe portion and the downstream exhaust pipe portion, a first support member that is attached across the plurality of upstream exhaust pipe sections and supports the two divided exhaust pipe covers from the inside, and a second support member that is attached to the downstream exhaust pipe section and supports the two divided exhaust pipe covers from the inside, A multipurpose vehicle equipped with a first tightening band that is fitted onto the outer periphery of the two divided exhaust pipe covers at the portions corresponding to the first support member, and tightens and fixes the two divided exhaust pipe covers to the first support member, and a second tightening band that is fitted onto the outer periphery of the two divided exhaust pipe covers at the portions corresponding to the second support member, and tightens and fixes the two divided exhaust pipe covers to the second support member.
2. a muffler connected to the downstream exhaust pipe section; A muffler cover that covers the muffler is provided in a divided state into two divided muffler covers, one of the two divided muffler covers is integrally molded with one of the two divided exhaust pipe covers, the other of the two divided muffler covers is integrally molded with the other of the two divided exhaust pipe covers, a third support member attached to an exhaust port portion of the muffler and supporting the two divided muffler covers from the inside; 2. The multi-purpose vehicle according to claim 1, further comprising a third tightening band fitted to the outer periphery of the two separate muffler covers at a portion corresponding to the third support member, and tightening and fixing the two separate muffler covers to the third support member.
3. 2. The multi-purpose vehicle according to claim 1, wherein one of the two divided exhaust pipe covers is configured to cover the upstream exhaust pipe section and the downstream exhaust pipe section from above, and the other of the two divided exhaust pipe covers is configured to cover each of the upstream exhaust pipe section and the downstream exhaust pipe section from below.
4. 2. A multi-purpose vehicle according to claim 1, wherein the plurality of upstream exhaust pipe sections are aligned in a vertical direction.
5. 3. The multi-purpose vehicle according to claim 2, wherein the muffler is a muffler for exhaust gas purification treatment.
Citation Information
Patent Citations
Multipurpose vehicle
JP6655970B2