JP2014073716A - Vehicle protection structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle protection structure capable of preventing a member of a vehicle side part, which receives an impact force from the vehicle side and deforms, from causing the damage to members located at the inner side thereof.SOLUTION: A motor cycle includes: a vehicle body frame 11; an engine hanger 12 which is detachably attached to the vehicle body frame 11 and supports an engine 13; and a protection member 65 which is attached to the vehicle body frame 11 near the engine hanger 12 and prevents the damage of a vehicle. The protection member 65 is disposed between the engine 13 and the engine hanger 12. The protection member 65 includes: a temporary lock part 73 which is temporarily locked at the vehicle body frame 11; and a following contact part 74 which is formed below the temporary lock part 73 and contacts with the engine hanger 12 so as to follow the shape of the engine hanger 12.

Description

  The present invention relates to an improvement in a vehicle protection structure.

  2. Description of the Related Art A vehicle protection structure is known in which a cylindrical protection member that receives an impact force from the side of a vehicle is attached to a side portion of the vehicle (see, for example, Patent Document 1 (FIG. 2)).

  As shown in FIG. 2 of Patent Document 1, the protective device (100) (the numbers in parentheses indicate the symbols described in Patent Document 1. The same applies hereinafter) is a shaft (through the hollow portion of the front wheel shaft of the motorcycle. 110) and a threaded portion (111) formed at both ends of the shaft (110), a cylindrical protective member (140) is attached via a nut (150). That is, a resin-made cylindrical protection member (140) is attached to both ends of the wheel so as to protrude outward in the vehicle width direction. When the impact force is received on the side portion of the vehicle, the impact force received by the cylindrical protection member is avoided by the impact force received by the vehicle directly from the ground.

However, no consideration is given to the fact that the member on the side of the vehicle in contact with the ground is deformed, and further, the member on the side of the deformed vehicle is in contact with the member located on the inside thereof and is damaged.
There is a need for a technique that can prevent a member on the side of the vehicle that has been deformed by receiving an impact force from the side of the vehicle from damaging the member located inside the member.

Japanese Patent No. 4916591

  It is an object of the present invention to provide a vehicle protection structure that prevents a member on a side of a vehicle that has been deformed by an impact force from the side of the vehicle from damaging the member inside the vehicle.

  The invention according to claim 1 is a vehicle body frame, an engine hanger that is detachably attached to the vehicle body frame and supports the engine, and a protective member that is attached to the vehicle body frame in the vicinity of the engine hanger and prevents the vehicle from being damaged. The protective member is arranged between the engine and the engine hanger.

  In the invention according to claim 2, the protective member is a temporary locking portion temporarily fixed to the vehicle body frame, and a copying member formed below the temporary locking portion and contacting the engine hanger so as to follow the shape of the engine hanger. And a contact portion.

  In the invention according to claim 3, the engine hanger includes a cylindrical mounting portion connected to the vehicle body frame, the mounting portion has a screw hole at the center, and the vehicle body frame extends along the outer peripheral surface of the mounting portion. The protective member has a receiving portion that receives the mounting portion with a predetermined gap, and the protective member has a protective member inner peripheral surface that contacts the outer peripheral surface of the mounting portion and a protective member outer peripheral surface that contacts the inner peripheral surface of the receiving portion. A thin cylindrical portion sandwiched between the body frame and the engine hanger is provided.

  In the invention which concerns on Claim 4, a protection member is comprised with an elastic member, and a temporary latching | locking part is formed in the front part of this axial part and the axial part which passes along the temporary locking hole opened in the receiving part, and the largest diameter has it. It is characterized by comprising a tapered umbrella portion whose tip is larger than the diameter of the temporary locking hole and whose tip is smaller than the temporary locking hole.

  In the invention which concerns on Claim 5, an outer diameter is larger than the internal diameter of the internal peripheral surface of a receiving part, and the protection member has a collar part contact | abutted to the edge part of a receiving part.

  In the invention which concerns on Claim 1, a protection member is arrange | positioned between an engine and an engine hanger. When an impact force is applied to the engine hanger from the outside in the vehicle width direction and the engine hanger is deformed, the deformed engine hanger may hit a part of the vehicle such as the engine disposed inside the engine hanger.

  In this regard, in the present invention, when the engine hanger is deformed and the deformed engine hanger hits a part of the vehicle, the member located inside the engine hanger is protected by the protective member. As a result, the vehicle can be prevented from being damaged.

  In the invention which concerns on Claim 2, a protection member has a temporary latching | locking part and a copying contact part. The protective member is temporarily fixed by the temporary locking portion, and is prevented from falling off the vehicle body frame. Therefore, when the protective member is attached to the vehicle body frame, the attaching operation can be easily performed. Further, the protection member is positioned with respect to the engine hanger at the copying contact portion of the protection member. As a result, the mounting operation of the engine hanger provided with the protection member can be easily performed as compared with the case where the temporary locking portion and the copying contact portion are not provided.

  In the invention according to claim 3, the protective member has a thin cylindrical portion, and the thin cylindrical portion is sandwiched between the vehicle body frame and the engine hanger. When an impact force toward the vehicle body frame is applied in the axial direction of the engine hanger, the impact force is received by the thin cylindrical portion. As a result, in addition to the impact force applied to the inside of the engine hanger in the vehicle width direction, the impact force applied to the engine hanger in the axial direction can be reduced. Further, the protective member is positioned by sandwiching the thin cylindrical portion between the body frame and the engine hanger.

  In the invention which concerns on Claim 4, a temporary latching | locking part consists of a shaft part and the umbrella part formed in the tip of this shaft part. The umbrella portion of the temporary locking portion formed of an elastic member is passed through the temporary locking hole and locked in the temporary locking hole of the receiving portion. Thereby, a protection member can be temporarily fixed to the receiving part of a vehicle body frame easily. Even if the engine hanger is removed, the protective member temporarily fixed to the receiving portion does not fall off the body frame. As a result, when installing the engine hanger, it is not necessary to mount the engine hanger while keeping the protection member supported, and the number of work steps related to mounting the engine hanger is reduced.

  In the invention which concerns on Claim 5, a protection member has a collar part contact | abutted to the edge part of a receiving part. When the protection member is set on the receiving portion of the vehicle body frame, the collar portion is easily positioned in the insertion direction of the protection member by contacting the end portion of the receiving portion. In addition, since the collar part is disposed on the inner side in the vehicle width direction, the collar part can be used as a protective part as it is.

1 is a right side view of a motorcycle according to the present invention. It is a principal part enlarged view of FIG. FIG. 3 is a sectional view taken along line 3-3 in FIG. 2. It is a front view of a protection member. It is a disassembled perspective view of the protection structure of the vehicle which concerns on this invention.

  Hereinafter, embodiments of the present invention will be described in detail. In the drawings and examples, “up”, “down”, “front”, “rear”, “left”, and “right” respectively indicate directions viewed from the driver who rides the motorcycle.

Embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a motorcycle 10 includes a body frame 11, an engine hanger 12 that extends downward from the body frame 11, an engine 13 that is attached to the engine hanger 12, and an intake air that is disposed behind the engine 13. A device 14, an exhaust device 15 that extends forward of the engine 13 and then extends downward and to the rear of the vehicle, and a front wheel steering portion 33 that is slidably attached to a head pipe 21 located at a front end portion of the vehicle body frame 11. A pivot frame 35 suspended from the vehicle frame 11 in the longitudinal center of the vehicle frame 11, a rear wheel suspension 34 disposed behind the pivot frame 35 and supporting the rear wheel 32, and the vehicle body frame 11 above the engine 13. A fuel tank 37 placed on the vehicle, and a seat 38 that extends continuously behind the fuel tank 37 and seats an occupant. It is a saddle-type vehicle to ride across the occupant in the seat 38.

Next, a member covering the vehicle body will be described.
An upper portion of the front wheel steering portion 33 is covered with a front cowl 41, and a headlight 42 is attached to the front cowl 41. An instrument 43 is attached to the front wheel steering section 33. From the side of the head pipe 21 to the front part of the fuel tank 37, it is covered with a first side cowl 44, and from the lower side of the fuel tank 37 to the lower side of the seat 38, it is covered with a second side cowl 45, The rear side of the cowl 45 is covered with a third side cowl 46. A front fender 47 is attached to the front fork 17 above the front wheel 31, and a rear fender 48 extends from above the rear wheel 32 to the rear. A rear lamp 49 is attached to the rear fender 48. A pair of the first side cowl 44, the second side cowl 45, and the third side cowl 46 are arranged on the left and right.

  As shown in FIG. 2, the front wheel steering portion 33 includes a steering shaft 18 that is inserted into the head pipe 21, a front fork 17 that is integrally attached to the steering shaft 18 and extends obliquely downward in front of the vehicle, The front wheel 31 is rotatably attached to the lower end of the fork 17 and the handle 19 is attached to the upper end of the front fork 17 and is operated by the occupant. A mirror 39 is attached to the handle 19.

  The vehicle body frame 11 supports a rear wheel suspension portion (FIG. 1, reference numeral 34) suspended from a head pipe 21, a main frame 22 that extends obliquely downward from the head pipe 21 toward the rear of the vehicle, and a rear end of the main frame 22. A pivot frame 35; a seat rail 23 that extends obliquely upward and rearward from the rear portion of the main frame 22 to support the seat 38; a down frame 24 that extends obliquely downward from the head pipe 21 below the main frame 22; A main element is a first cross frame 25, a second cross frame 26, a third cross frame 27, and a fourth cross frame 28 that are passed between the frame 22 and the down frame 24 in a truss shape from the front to the rear of the vehicle.

  A cylindrical joint tube 61 to which the first arm 51 of the engine hanger 12 is connected is fixed to the lower end portion of the down frame 24, and the engine is placed in the middle of the fourth cross frame 28 at the vehicle rearward position of the joint tube 61. A coupler member 62 to which the second arm 52 of the hanger 12 is connected is fixed. That is, the body frame 11 includes the joint tube 61 and the coupler member 62.

  The engine hanger 12 that supports the engine 13 has a substantially Y shape in a vehicle side view. The first arm 51 of the engine hanger 12 is connected to the joint tube 61 and extends downward from the joint tube 61 to be connected to the crankcase 55 of the engine 13. The second arm 52 branches off from the middle portion of the first arm 51 and extends obliquely upward to the rear of the vehicle and is connected to the coupler member 62. The second arm 52 is a member having a smaller cross-sectional area than the first arm 51 and reinforces the first arm 51. doing. Specifically, as shown in FIG. 3, the second arm 52 is connected to the upper end of the second arm 52 by welding, and the mounting portion 53 is fastened to the coupler member 62. The engine hanger 12 is detachably attached to the vehicle body frame 11.

  The engine 13 includes a crankcase 55 and a cylinder portion 56 extending obliquely forward and upward from the crankcase 55. A front lower portion of the crankcase 55 is supported by the engine hanger 12, and a rear upper portion and a rear lower portion of the crankcase 55 are supported by the pivot frame 35. The main frame 22, the down frame 24, the seat rail 23, the pivot frame 35, and the engine hanger 12 are each provided as a pair on the left and right.

  A radiator unit 29 is attached to the down frame 24 above the cylinder portion 56 of the engine 13, and a pipe 89 is passed between the crankcase 55 and the radiator unit 29.

3-5, the structure of the protection member 65 arrange | positioned between the engine hanger 12 and the vehicle body frame 11 and its peripheral part is demonstrated.
As shown in FIG. 3, a fourth cross frame 28 constituting the vehicle body frame 11 extends in the front-back direction of the engine 13 outward in the vehicle width direction, and a coupler member 62 is fixed to the fourth cross frame 28. The coupler member 62 constitutes a part of the vehicle body frame 11. Bolts 64 are inserted into the bolt holes 63 of the coupler member 62 from the outside of the vehicle. The attachment portion 53 of the engine hanger 12 is fastened by a bolt 64 from the outside of the vehicle.

  A protective member 65 made of an elastic member and preventing the vehicle from being damaged is attached to the coupler member 62. The protection member 65 is disposed between the engine 13 and the engine hanger 12. The coupler member 62 constituting the vehicle body frame 11 has a receiving portion 72 that receives the mounting portion 53 of the engine hanger 12. The receiving portion 72 is disposed with a predetermined gap along the outer peripheral surface 54 of the mounting portion 53 of the engine hanger 12. A thin cylindrical portion 77 of a protection member 65 described later is sandwiched between the gaps.

Next, the structure of the protection member 65 will be described.
As shown in FIGS. 3 and 4, the protection member 65 is formed below the temporary locking portion 73 and a temporary locking portion 73 that protrudes upward and is temporarily fixed to the vehicle body frame (coupler member 62). A copying contact portion 74 that contacts the outer peripheral surface 54 of the mounting portion 53 so as to follow the shape of the mounting portion 53, a protective member inner peripheral surface 75 including the copying contact portion 74, and the protective member inner peripheral surface 75. And a protective member outer peripheral surface 76 that contacts the inner peripheral surface 82 of the receiving portion 72 formed on the coupler member 62. The protective member inner peripheral surface 75 and the protective member outer peripheral surface 76 constitute a thin cylindrical portion 77. The thin cylindrical portion 77 is sandwiched between the vehicle body frame (coupler member 62) and the engine hanger 12.

  The temporary locking portion 73 for temporarily fixing the protective member 65 to the coupler member 62 is formed in the shaft portion 84 passing through the temporary locking hole 83 opened in the receiving portion 72 and the tip 83a of this shaft portion, and the maximum diameter is temporarily engaged. A tapered umbrella portion 85 having a tip larger than the diameter of the stop hole 83 and having a tip smaller than the temporary locking hole 83 is formed. The protective member 65 has an outer diameter (D) larger than the inner diameter (d) of the inner peripheral surface 82 of the receiving portion 72 (d <D), and has a flange portion 86 that contacts the end portion 72 a of the receiving portion 72. An impact absorbing portion 78 that absorbs impact is formed below the temporary locking portion 73 including the flange portion 86, and a screw portion 64m of the bolt 64 is avoided at a position outside the impact absorbing portion 78 in the vehicle width direction. Thus, the escape portion 79 is formed. By allowing the collar portion 86 to come into contact with the end portion 72 a of the receiving portion 72, the protection member 65 can be positioned at a predetermined position in the vehicle width direction.

Next, the material of the protection member 65 will be described.
In this embodiment, ethylene / propylene rubber (EPDM) is used as the material of the protective member 65. EPDM is obtained by adding a small amount of an ethylene / propylene copolymer additive. In addition, an ethylene / propylene rubber (EPM) made only of a copolymer of ethylene and propylene may be used. Further, styrene butadiene rubber (SBR), butadiene rubber (BR) and other rubbers may be used. In addition, a resin material may be used as long as it is an elastic member.

  As shown in FIG. 5, the engine hanger 12 includes a cylindrical attachment portion 53 that is connected to the vehicle body frame (coupler member 62). The attachment portion 53 has a screw hole 88 at the center. In the drawing, the fourth cross frame to which the coupler member 62 is fixed is omitted.

  The procedure for attaching the engine hanger 12 and the protection member 65 to the vehicle body frame (coupler member 62) is as follows. First, the protection member outer peripheral surface 76 of the protection member 65 is aligned with the receiving portion 72, and the temporary locking portion 73 is connected to the coupler member. The protective member 65 is temporarily fixed to the vehicle body frame (coupler member 62).

  Next, the bolt 64 is inserted into the bolt hole 63 of the coupler member 62 from the outside in the vehicle width direction while matching the mounting portion 53 of the engine hanger 12 with the protective member inner peripheral surface (reference numeral 75) of the protective member 65. The bolt 64 is screwed into the screw hole 88 of the attachment portion 53 of the engine hanger 12 having a cylindrical shape, so that the thin cylindrical portion 77 of the protection member 65 is fixed therebetween. The protective member 65 is securely attached to the coupler member 62 by the above procedure.

The operation of the vehicle protection structure described above will be described next.
In FIG. 3, a protective member 65 is disposed between the engine 13 and the engine hanger 12. When an impact force is applied to the engine hanger 12 from the outside in the vehicle width direction and the engine hanger 12 is deformed, the deformed engine hanger 12 is a part of the engine 13 (for example, piping) positioned inward of the engine hanger 12 in the vehicle width direction. Class 89b).

  In this regard, in the present invention, when the engine hanger 12 is deformed and the deformed engine hanger 12 hits the piping 89b of the engine 13, the piping 89b of the engine 13 is protected by the protection member 65. As a result, the piping 89b of the engine 13 can be prevented from being damaged. This action / effect describes the action when the protective member 65 hits the piping 89b of the engine 13. However, even when it hits the side face 13s of the engine, the protective member 65 causes the side face of the engine. 13s is protected.

  The protective member 65 has a thin cylindrical portion 77, and the thin cylindrical portion 77 is sandwiched between the vehicle body frame (coupler member 62) and the engine hanger 12. When an upward impact force is applied in the axial direction of the engine hanger 12, the impact force is received by the thin cylindrical portion 77. As a result, in addition to the impact force applied to the inside of the engine hanger 12 in the vehicle width direction, the impact force applied to the engine hanger 12 in the axial direction can be reduced.

  3 and 5, the protection member 65 has a temporary locking portion 73 and a copying contact portion 74. The protective member 65 is temporarily fixed by the temporary locking portion 73, and is prevented from dropping from the vehicle body frame 11. Therefore, when the protective member 65 is attached to the vehicle body frame 11, the attachment work can be easily performed. Further, the engine hanger 12 is positioned with respect to the protection member 65 by the copying contact portion 74 of the protection member 65. As a result, the mounting operation of the engine hanger 12 in the case where the protection member 65 is provided can be easily performed as compared with the case where the temporary locking portion 73 and the copying contact portion 74 are not provided.

  The temporary locking portion 73 includes a shaft portion 84 and an umbrella portion 85 formed at the tip of the shaft portion 84. The umbrella portion 85 of the temporary locking portion 73 formed of an elastic member is passed through the temporary locking hole 83 and locked to the temporary locking hole 83 of the receiving portion 72. Thereby, the protection member 65 can be temporarily fixed to the receiving part 72 of the vehicle body frame 11 easily. The protective member 65 temporarily fixed to the receiving portion 72 does not fall off the vehicle body frame 11 even when the engine hanger 12 is removed. As a result, when the engine hanger 12 is attached, it is not necessary to maintain the state in which the protection member 65 is supported. As a result, the work man-hour related to the mounting of the engine hanger 12 is reduced.

  Further, the protection member 65 has a flange 86 that abuts on the end 72 a of the receiving portion 72. When the protective member 65 is set on the receiving portion 72 of the vehicle body frame (coupler member 62), the collar portion 86 abuts on the end portion 72a of the receiving portion 72, so that the protective member 65 is set in the set direction (vehicle width direction). Easy positioning. In addition, since the collar portion 86 is disposed on the inner side in the vehicle width direction, the collar portion 86 can be used as a protective portion as it is.

  Although the present invention is applied to a motorcycle in the embodiment, it can also be applied to a tricycle and can be applied to a general vehicle.

  The present invention is suitable for a motorcycle in which a protective member is provided on a side portion of the vehicle.

  DESCRIPTION OF SYMBOLS 10 ... Vehicle (motorcycle), 11 ... Body frame, 12 ... Engine hanger, 13 ... Engine, 53 ... Mounting part, 54 ... Outer peripheral surface of mounting part, 65 ... Protection member, 72 ... Receiving part, 73 ... Temporary locking , 74 ... Copy contact part, 75 ... Inner peripheral surface of protection member, 76 ... Outer peripheral surface of protection member, 77 ... Thin cylindrical part, 82 ... Inner peripheral surface of receiving part, 83 ... Temporary locking hole, 84 ... Shaft part 85 ... Umbrella part, 86 ... Buttocks part.

Claims (5)

A vehicle body frame (11), an engine hanger (12) removably attached to the vehicle body frame (11) and supporting the engine (13), and attached to the vehicle body frame (11) in the vicinity of the engine hanger (12) And a protective member (65) for preventing the vehicle from being damaged.
The protection structure for a vehicle, wherein the protection member (65) is disposed between the engine (13) and the engine hanger (12).   The protective member (65) is formed in the shape of the temporary hanger (73) temporarily fixed to the vehicle body frame (11) and the engine hanger (12) formed below the temporary locking portion (73). The vehicle protection structure according to claim 1, further comprising a copying contact portion (74) that contacts the engine hanger (12) so as to copy. The engine hanger (12) includes a cylindrical mounting portion (53) connected to the vehicle body frame (11).
This attachment part (53) has a screw hole (88) in the center,
The vehicle body frame (11) has a receiving portion (72) for receiving the mounting portion (53) with a predetermined gap along the outer peripheral surface (54) of the mounting portion (53).
The protective member (65) includes a protective member inner peripheral surface (75) that contacts the outer peripheral surface (54) of the mounting portion (53) and a protective member that contacts the inner peripheral surface (82) of the receiving portion (72). The thin-walled cylindrical portion (77) sandwiched between the vehicle body frame (11) and the engine hanger (12), and having a member outer peripheral surface (76). The vehicle protection structure according to 2. The protective member (65) is composed of an elastic member,
The temporary locking part (73) is formed at the shaft part (84) passing through the temporary locking hole (83) opened in the receiving part (72) and at the tip of the shaft part (84) and has a maximum diameter. The protection structure for a vehicle according to claim 3, characterized by comprising a tapered umbrella portion (85) having a tip larger than the diameter of the temporary locking hole (83) and having a tip smaller than the temporary locking hole (83).   The protective member (65) has a flange (D) having an outer diameter (D) larger than an inner diameter (d) of the inner peripheral surface (82) of the receiving portion (72) and abutting against an end portion of the receiving portion (72). 86) The vehicle protective structure according to claim 3 or 4, characterized in that

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