CN1253341C - Supporting structure of flexible long-size component - Google Patents

Abstract

A support structure for flexible long-dimension components, which is convenient for reducing the number of components and man-hours for assembly work, and can stably support the flexible long-dimension components on a flat surface. Wherein, on the cover (82) made of synthetic resin, a pair of hooks (128) and a pair of connecting walls (129, 130) are integrally provided with, meanwhile, each hook (128) and each connecting wall (129, 130) the rectangular through-hole (131) that surrounds, and above-mentioned hook (128) has snap-in protrusion (128a) at front end, confronts each other and stands upwards from the outside of cover (82); And two connecting walls (129 , 130) are connected between the two ends of the two hooks (128), stand up from the outside of the cover (82), and are stacked on each other and pressed into a plurality of flexible elongated parts (133, 128) between the two hooks (128) simultaneously. 134) is clamped between the engaging protrusions (128a) of the two hooks (128) and the two connecting walls (129, 130).

Description

Support structure for flexible long-dimension components

technical field

The present invention relates to an improved support structure for supporting flexible elongated components such as cables, coils or hoses.

Background technique

For example, the cable fixing structure of the motorcycle disclosed in Japanese Patent Application Laid-Open No. 11-79026 is to add a cable fixing part to a cable member so that cables such as wire harnesses or cords are supported by the cable fixing part.

The above-mentioned existing cable fixing parts are installed on the edge of the cable member, and it is difficult to install it on the flat part other than the edge. Moreover, not only the number of parts is increased, but also the work for installing the cable fixing part is required. Therefore, , involving an increase in man-hours for assembly operations. On the other hand, although there is also a structure in which the ground wire holding the cable is inserted and installed on the flat surface of the support body, and the cable is supported by the ground wire, even if it is a cable fixing part using such a ground wire, it cannot be avoided. An increase in the number of parts and an increase in man-hours for assembly work.

Contents of the invention

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a flexible elongated member that can stably support the flexible elongated member on a flat surface while reducing the number of parts and assembly man-hours. support structure.

In order to achieve the above object, the first aspect of the present invention is characterized in that a pair of hooks and a pair of connecting walls are integrally provided on the synthetic resin cover covering the functional parts, and at the same time, a pair of hooks and connecting walls are provided. A rectangular through hole surrounded by a wall, the above-mentioned pair of hooks have engaging protrusions protruding toward each other at the front end, facing each other and standing upward from the outside of the above-mentioned cover; and the above-mentioned two connecting walls connect the hooks Between the two ends, stand up from the outer surface of the above-mentioned cover, at least include and stack the inner flexible elongated part supported by the above-mentioned two connecting walls and the outer flexible elongated part where the above-mentioned two engaging protrusions contact the outer surface Components, and a plurality of flexible elongated components pressed between the above two hooks are clamped between the engaging protrusions of the above two hooks and the above two connecting walls, the above two connecting walls are provided with reinforcing walls, and the above reinforcing A wall is arranged between the above two connecting walls along the whole between the two hooks.

According to the structure of the first aspect of the present invention, when the cover made of synthetic resin is molded, the pair of hooks and the pair of connecting walls can be integrated with a simple mold structure that does not adopt the slideway type, Multiple flexible long parts can be stably supported by two hooks and two connecting walls without using parts other than the cover, which is convenient for reducing the number of parts and assembly work man-hours, and the flexible long parts can be stably supported on the flat surface of the cover face. Furthermore, the through hole is covered by a plurality of flexible elongated members overlapping each other, and the inside of the cover cannot be seen from the through hole in a state in which the flexible elongated member is supported.

In addition, a second aspect of the present invention is characterized in that, in addition to the structure of the first aspect, the inner flexible elongated member is a cable having a soft vinyl resin protective film, and the outer flexible elongated member It is a serpentine tube or hose made of hard elastic material. According to this structure, the vinyl protective film on the outside of the cable is fully attached to the two connecting walls, and at the same time, the engaging protrusions at the front ends of the two hooks Reliably snaps onto the outside of a serpentine or hose, enabling more reliable support of multiple flexible long-dimension components.

A third aspect of the present invention is characterized in that: on the basis of the structure of the first aspect, the above-mentioned hook is composed of a base portion and a plurality of branch plate portions, the base end of the base portion is connected to the cover along its entire length, The above-mentioned branch plate portion is connected to the above-mentioned base plate portion at a plurality of places spaced apart along the longitudinal direction of the flexible elongated member, and at the same time, the above-mentioned engaging protrusion is protruded from the front end portion, and the above-mentioned each branch plate portion is arranged along the The entire two hooks are provided with a reinforcing wall that supports the inner flexible elongated member between the two connecting walls. According to such a structure, the inner flexible elongated member can be supported even with the reinforcing wall, and can be supported more stably. A plurality of flexible elongated parts, and the strength of the two hooks can be increased by the reinforcing wall.

Furthermore, the fourth aspect of the present invention is characterized in that: on the basis of the structure of the above-mentioned first aspect, the above-mentioned functional component is an engine body of a forced air-cooled engine, and the above-mentioned cover is a shroud covering a part of the above-mentioned engine body. With such a structure, the through hole is covered with a plurality of flexible elongated parts to prevent cooling air from leaking out of the shroud, thereby stably maintaining the cooling performance of the forced air-cooled engine, and it is possible to combine the plurality of flexible elongated parts It is supported on the shroud, and since the cooling air can be prevented from leaking out through the through hole, dust is not sprayed to the outer surface side of the shroud, and the deterioration of the appearance can be prevented.

Description of drawings

Fig. 1 is a side view of a scooter.

Fig. 2 is a perspective view of the middle part of the scooter in a state where a body cover and a glove box are omitted.

Fig. 3 is an enlarged sectional view taken along line 3-3 of Fig. 1 .

FIG. 4 is a view of arrow 4 in FIG. 3 .

FIG. 5 is a view of arrow 5 in FIG. 3 .

Fig. 6 is a sectional view taken along line 6-6 of Fig. 3 .

Fig. 7 is a view of the cylinder head cover viewed from the cylinder head side.

Fig. 8 is a sectional view taken along line 8-8 of Fig. 7 .

Fig. 9 is an enlarged sectional view taken along line 9-9 of Fig. 6 .

Fig. 10 is a sectional view taken along line 10-10 of Fig. 9 .

Fig. 11 is a sectional view taken along line 11-11 in Fig. 4 .

Fig. 12 is a sectional view taken along line 12-12 of Fig. 5 .

Fig. 13 is a sectional view taken along line 13-13 of Fig. 5 .

Fig. 14 is an enlarged sectional view taken along line 14-14 of Fig. 2 .

Fig. 15 is a sectional view taken along line 15-15 of Fig. 14 .

Fig. 16 is a sectional view taken along line 16-16 of Fig. 14 .

Fig. 17 is a sectional view taken along line 17-17 of Fig. 14 .

Detailed ways

Hereinafter, an embodiment of the present invention will be described based on an embodiment of the present invention shown in the drawings.

1 to 17 are diagrams showing an embodiment of the present invention. FIG. 1 is a side view of a scooter, and FIG. Perspective view, Fig. 3 is an enlarged sectional view cut along line 3-3 of Fig. 1, Fig. 4 is a view to arrow 4 of Fig. 3, Fig. 5 is a view to arrow 5 of Fig. 3, Fig. 6 is a view to arrow 5 of Fig. 3 The sectional view taken along line 6-6, Fig. 7 is a view of the cylinder head cover viewed from the side of the cylinder head, Fig. 8 is a sectional view taken along line 8-8 in Fig. 7, Fig. 9 is a sectional view taken along line 9-9 in Fig. 6 Figure 10 is a sectional view taken along line 10-10 in Figure 9, Figure 11 is a sectional view taken along line 11-11 in Figure 4, and Figure 12 is a sectional view taken along line 12-12 in Figure 5 Cut sectional view, Fig. 13 is a sectional view taken along line 13-13 of Fig. 5, Fig. 14 is an enlarged sectional view taken along line 14-14 of Fig. 2, and Fig. 15 is a sectional view taken along line 15-15 of Fig. 14 16 is a sectional view taken along line 16-16 in FIG. 14 , and FIG. 17 is a sectional view taken along line 17-17 in FIG. 14 .

First, in FIGS. 1 and 2 , the frame 25 of the scooter has: a main frame tube 27 with a head tube 26 fixed at the front end; a cross tube 28 fixed at a right angle at the rear end of the main frame tube 27 The front ends are respectively connected to the two ends of the horizontal tube 28, left and right in pairs, as the rear frame tubes 29, 30 of the rear frame components.

The main frame tube 27 is formed by integrally connecting a down frame 27a and a lower frame 27b, the down frame 27a is inclined rearward and downward from the head pipe 26, and the lower frame 27b extends substantially horizontally rearward from the rear end of the down frame 27a. . In addition, the left and right pairs of rear frame tubes 29, 30 are integrally connected to the upper frames 29a, 30a and the upper frames 29b, 30b, and the upper frames 29a, 30a extend rearward and upward from both ends of the horizontal tube 28. The upper frame 29b, 30b extends substantially horizontally rearward from the rear end of the upper frame 29a, 30a, and the rear end openings are bent in a horizontal plane so as to face each other.

A steerable front fork 31 straddling the front wheel WF is supported on the head pipe 26 , and a handlebar 32 is connected to an upper end of the front fork 31 .

The front part of the power unit P is supported up and down by the front parts of the two rear frame tubes 29 and 30 on the vehicle frame 25 through the link mechanism 33, and the rear wheel WR arranged on the right side of the rear part of the power unit P is supported. At the rear of the power unit P.

In FIGS. 3 to 6 , the power unit P is composed of a forced air-cooled single-cylinder 4-stroke engine E arranged in front of the rear wheels WR, and a continuously variable transmission M provided between the engine E and the rear wheels WR.

The engine body 34 of the engine E is disposed between the two rear frame tubes 29, 30 of the vehicle frame 25, and includes: a crankcase 35; a cylinder block 36 connected to the crankcase 35; The cylinder head 37 that is connected on the cylinder body 36; On the opposite side with the cylinder body 36, the cylinder head cover 38 that is connected on the cylinder head 37, the cylinder head 37 is arranged at the front part of two rear vehicle frame tubes 29,30— Between the lower parts of the upper frame 29a, 30a.

The cylinder block 36 is arranged so that the axis line of the cylinder barrel 39 provided on the cylinder block 36, that is, the cylinder axis C is substantially horizontal slightly forward and upward in the front-rear direction of the motorcycle, and is slidably fitted between the cylinder head 37 and the above-mentioned cylinder block 36. A combustion chamber 41 is formed between pistons 40 in the cylinder bore 39 . In addition, the piston 40 is connected to a crankshaft 44 having a rotation axis parallel to that of the rear wheel WR through a connecting rod 42 and a crank pin 43 .

The crankshaft 44 is rotatably supported on the crankcase 35. The crankcase 35 is composed of a pair of casings 35a, 35b connected on a plane perpendicular to the crankshaft 44 including the cylinder axis C. On the crankshaft 44, a A first ball bearing 45 is attached between the case 35 a and the crankshaft 44 , and a second ball bearing 46 is attached between the other case 35 b and the crankshaft 44 .

An intake port 47 that can communicate with the combustion chamber 41 is provided on the upper side of the cylinder head 37 , and an exhaust port 48 that can communicate with the combustion chamber 41 is provided on the lower side of the cylinder head 37 . The intake valve 49 and the exhaust valve 50, which respectively open and close the intake air 47 and the exhaust air 48, are arranged on the cylinder head 37 so that they are roughly arranged in a projection diagram projected on a plane perpendicular to the rotation axis of the crankshaft 44. In a V shape, the springs apply force to the direction of closing the suction port 47 and the exhaust port 48 respectively. In addition, the spark plug 51 facing the combustion chamber 41 is attached to at least one of the left and right sides of the cylinder head 37, and in this embodiment, it is attached to the right side while facing forward in the direction of travel of the motorcycle.

Between the cylinder head 37 and the cylinder head cover 38 is housed a valve rocker mechanism 52 for driving the intake valve 49 and the exhaust valve 50 to open and close. The valve rocker mechanism 52 has: Parallel axes, rotatably supported on the cylinder head 37, and a camshaft 55 with intake and exhaust cams 53, 54; Gas side and exhaust side rocker shafts 56, 57; can be freely rocked on the suction side rocker shaft 56, so that it can drive the suction side of the suction valve 49 with the movement of the above-mentioned suction cam 53 arm 58; an exhaust-side rocker arm 59 that is freely rockably supported on the exhaust-side rocker shaft 57 to follow the movement of the exhaust cam 54 to drive the exhaust valve 50 to open and close.

A driven sprocket 60 is fixed to one end of the camshaft 55 . On the other hand, on the crankshaft 44, on the outer side of the second ball bearing 46, a drive sprocket 61 is fixed at a position corresponding to the above-mentioned driven sprocket 60, and ring-shaped sprockets are wound around the drive and driven sprockets 61, 62. The cam chain 62 is movably accommodated in the storage chamber 63 formed by the cylinder block 36 , the cylinder head 37 and the cylinder head cover 38 . The camshaft 55 is driven to rotate at 1/2 the rotational speed of the crankshaft 44 by such a driving sprocket 61 , a driven sprocket 60 and a cam chain 62 .

On the outer side of the first ball bearing 45, a drive gear 64 is fixed on the crankshaft 44, and the oil pump 66 is driven by the drive gear 64. A lubricating oil reservoir 65 formed in the lower portion of the crankcase 35 sucks the lubricating oil.

A part of the lubricating oil discharged from the oil pump 66 is used to lubricate the valve rocker mechanism 52, and the crankcase 35, the cylinder block 36, the cylinder head 37, and the cylinder head cover 38 are provided with a valve for guiding the lubricating oil from the oil pump 66 to the valves. The oil supply channel 67 of the rocker mechanism 52 . Furthermore, on the cylinder head 37, the lubricating oil supply passage 67 is arranged at a position closer to the intake air 47 than the exhaust gas 48. On the upper side, a lubricating oil supply passage 67 is arranged at a position intersecting with the suction air 47 .

Referring to Fig. 7 and Fig. 8 simultaneously, the downstream end portion of above-mentioned lubricating oil supply channel 67 is constituted by circulation groove 68 and bottomed circulation hole 69, and circulation groove 68 is arranged on the connection surface that cylinder head cover 38 is connected to cylinder head 37 , so that the lubricating oil from one side of the cylinder head 37 can be supplied to one end, the flow hole 69 is connected to the other end of the flow groove 68, and is arranged on the side wall of the cylinder head cover 38, and the spray 70 connected to the flow hole 69 is arranged on The inner surface of the side wall of the cylinder head cover 38 enables it to spray lubricating oil to the valve rocker mechanism 52 .

In addition, a bottomed detection hole 71 connected to one end of the above-mentioned flow groove 68 is provided on the cylinder head cover 38 , and at the same time, at a position corresponding to the detection hole 71 , there is an integrally protruding hole extending from the outside of the cylinder head cover 38 to the outside. The protruding mounting protrusion 72 on which the temperature sensor 73 is mounted such that the detection element portion 73 a protrudes into the detection hole 71 is protruded. That is, the temperature sensor 73 is attached to the head cover 38 of the engine body 34 so that the detection element portion 73 a faces the lubricating oil supply oil passage 67 .

3, a generator 76 is disposed outside the drive gear 64. The generator 76 has a stator 74 fixed to the crankcase 35 and an outer rotor 75 fixed to the crankshaft 44 so as to surround the stator 74. A fan 77 is fixed to the crankshaft 44 outside the generator 76 . The fan 77 is integrally provided with a plurality of blades 77b, 77b... on the outer periphery of a base 77a connected to the outer rotor 75 of the generator 76 by a plurality of, for example, four bolts 78, 78....

At least the cylinder block 36 and the cylinder head 37 in the engine body 34 as functional parts, in this embodiment, a part of the crankcase 35, the cylinder block 36 and the cylinder head 37 are covered by a shroud 82 as a cover, and are discharged from the fan 77. Air for forced air cooling flows through a flow path 81 formed between the engine body 34 and the shroud 82 . Furthermore, a plurality of cooling fins 36a . . . , 37a .

The above-mentioned shield 82 is covered by the cooperation of the cylinder block 36 and the cylinder head 37, and the upper and lower covers 83, 84 are combined with each other up and down, and a part of the crankcase 35 is covered and connected to the two covers 83, 84 The fan cover 85 is comprised, and the upper cover 83, the lower cover 84, and the fan cover 85 are each made of synthetic resin.

The upper cover 83 is protruded with a plurality of engaging claws 87 ... protruding from the joint surface 86 combined with the lower cover 84 to the side of the lower cover 84, and the lower cover 84 is provided with the above-mentioned engaging claws 87 ... Elastic engaging engaging parts 88 . . . In addition, on the upper and lower covers 83, 84, a plurality of connected parts 89..., 90... that are in contact with each other are integrally provided on the joint surface 86, respectively, and the connected parts 89..., 90... that are in contact with each other are used for Fasteners 91... are connected to each other.

In this way, the upper and lower covers 83, 84 are connected to each other through the elastic engagement of the engaging claws 87... to the engaging parts 88... and the connection of the connected parts 89..., 90... Combined, the cylinder head cover 38 protrudes to the front side from the upper and lower covers 83 , 84 .

The fan cover 85 is connected to the case 35a as part of the cover crankcase 35 - the case 35a and the fan 77, and is connected to the above-mentioned upper and lower covers 83, 84 by a plurality of fasteners 92....

On this fan cover 85, a suction tube 94 is provided, so that it corresponds to the fan 77 on its outside. There is a grille 95 on it.

The grille 95 is composed of a plurality of, for example, five ring parts 95a-95d arranged concentrically with the suction tube 94, and a plurality of connecting parts 95e extending radially to connect the suction tube 94 and the ring parts 95a-95d. As a configuration, for example, a triangular timing mark 96 for aligning the phase of the crankshaft 44 is engraved on the outer surface of the fan cover 85 at a position corresponding to one of these connecting portions 95e . . . The timing mark 96 is used to calibrate the time for ignition, by making one of a plurality of, for example, four bolts 78 . . . The connecting portion 95e corresponding to 96 is consistent, and the timing and phase alignment for ignition can be easily carried out.

Moreover, the above-mentioned timing mark 96 is not only used for timing calibration of ignition, but also can be used for timing calibration of TDC and BDC. In addition, the structure of the valve rocker mechanism 52 can change at least the position of the intake valve 49 and the exhaust valve 50. In the case of an operating characteristic, it can also be used to calibrate the timing of changing its operating characteristic.

Referring to Fig. 9 and Fig. 10 simultaneously, on the upper side of cylinder head 37, be provided with the flat mounting surface 97 of opening suction port 47, the downstream end of intake pipe 98 is connected on this mounting surface 97 via heat insulator 99 in the middle. .

The flange portion 98a is integrally provided at the downstream end of the intake pipe 98, and the heat insulator 99 having the air intake hole 100 communicating with the air intake 47 and the mounting surface 97 are shaped corresponding to the flange portion 98a.

On both sides of the heat insulator 99, seal rings 101, 102 annularly surrounding the above-mentioned suction hole 100 are installed, and a seal ring 101 is installed between the heat insulator 99 and the mounting surface 97. A seal ring 102 is attached between the above-mentioned flange portion 98a. Furthermore, the thickness T of the heat insulator 99 is set to be larger than the distance S between the mounting surface 97 and the upper cover 83 on the shroud 82 .

Bottomed threaded holes 103, 103 are provided on the mounting surface 97 on both sides of the suction port 47, and bolts 104, 104 inserted into the flange portion 98a and the heat insulator 99 are screwed into the threaded holes 103. , 103, by tightening the bolts 104, 104, the air intake pipe 98 can be connected to the installation surface 97 via the heat insulator 99 in the middle.

An opening 105 for fitting and positioning the above-mentioned heat insulator 99 is provided in the upper cover 83 of the shroud 82 covering the cylinder head 37 . This opening 105 is made larger than the heat insulator 99 as shown in FIG. The air is exhausted to the exhaust 106 outside.

The upstream end of the intake pipe 98 is connected to the downstream end of the carburetor 108 disposed behind the intake pipe 98 through the connecting hose 107, and the upstream end of the carburetor 108 is connected to the air compressor disposed on the left side of the rear wheel WR through the connecting pipe 109. filter 110.

In FIG. 11 , a motorcycle starter 111 is attached to the carburetor 108 for power-on control based on the detection value of the above-mentioned temperature sensor 73 . A throttle valve (not shown) provided in the carburetor 108 is bypassed in the middle of the starting air-fuel mixture passage 113 on the carburetor main body 112 .

The starting mixture passage 113 is fixed with a discharge pipe 114 on the carburetor body 112 so that it is installed on the upstream side of the motorcycle starter 111, and the lower part of the discharge pipe 114 protrudes into the upper fuel nozzle. 115 is fixed on the lower part of the carburetor body 112 . In addition, a fuel tank 116 for storing fuel is fixed to the lower portion of the carburetor body 112 , and the lower portion of the fuel nozzle 115 protrudes into the fuel in the fuel tank 116 .

The nozzle 117 is arranged on the downstream side of the discharge pipe 114 in the middle of the mixed gas passage 113 for starting. The motorcycle starter 111 has a needle valve 118 which can be inserted into the nozzle 117 freely. The position of 118 in the nozzle 117 is determined by the energization control of the motorcycle starter 111 , thereby determining the amount of starting mixture gas flowing through the starting mixture gas passage 113 .

Fitting holes 120 are formed between joint surfaces 86 of the upper and lower covers 83 , 84 constituting a part of the shroud 82 . Also, the plug cap 121 connected to the spark plug 51 has a flange portion 121a in contact with the outer surfaces of the upper and lower covers 83 and 84 around the fitting hole 120 and is fitted into the fitting hole 120 .

On the upper cover 83 of the upper and lower covers 83, 84, a visor 122 that covers the fitting portion of the spark plug cap 121 facing the fitting hole 120 from above is integrally provided. As shown in FIG. An anti-rotation positioning portion 122a is formed at the front end, and the anti-rotation positioning portion 122a abuts and locks the spark plug cap 121 to prevent the spark plug cap 121 from rotating around the axis of the spark plug 51 .

In the plug cap 121, at least a part of the high-strength flexible wire 123 connected to the plug cap 121 is in a state extending forward from the plug cap 121, and the brim 122 is formed so as to cover a portion of the plug cap 121 facing the fitting hole 120 from above. In the fitting part, the spark plug cap 121 is elastically pressed in one direction around the axis of the spark plug 51 due to the elastic force acting on the high-strength flexible wire 123, and an anti-rotation positioning part 122a is formed on the brim 122 to support the spark plug cap against the above-mentioned elastic force 121.

Referring to Fig. 13 at the same time, a clip mounting seat 125 continuously connected to the brim 122 of the hat is integrally formed on the upper cover 83, and the clip 124 elastically mounted on the clip mounting seat 125 maintains a height connected to the spark plug cap 121. Strength flex cord 123.

The engine body 34 is supported on the vehicle frame 25, and the cylinder head 37 is arranged between the lower parts of the front upper frame 29a, 30a on the left and right paired rear frame tubes 29, 30, and the above-mentioned spark plug cap 121 is also arranged in the Between the lower parts of the two upper frames 29a, 30a, as shown in Fig. 2, the ignition coil 126 is supported on the upper part of the upper frame 30a on the right side of one of the two upper frames 29a, 30a.

Moreover, the other end of the high-strength flexible wire 123, one end of which is connected to the ignition coil 126, is folded from the front of the above-mentioned spark plug cap 121 locked on the anti-rotation positioning part 122a, to the rear to form a U shape, and is connected to the spark plug cap 121. superior.

Referring to Figures 14 to 17 at the same time, on the upper cover 83 of the shield 82, a pair of hooks 128, 128 and a pair of connecting walls 129, 130 are integrally provided, and these hooks 128, 128 and connecting walls 129, 130 surrounds the rectangular through hole 131, the pair of hooks 128, 128 have engaging protrusions 128a, 128a protruding toward the side close to each other at the front end, facing each other and standing upward from the outside of the upper cover 83; and connecting The walls 129 , 130 are connected between the above-mentioned two hooks 128 , 128 , face each other, and stand upward from the outer surface of the upper cover 83 .

Between the engaging protrusions 128a, 128a of the two hooks 128, 128 and the above-mentioned two connecting walls 129, 130, a plurality of flexible long-sized parts stacked on each other and pressed into between the above-mentioned two hooks 128, 128 are sandwiched. , in the present embodiment, the cable 133 and the hose 134 are clamped between the engaging protrusions 128a, 128a and the two connecting walls 129, 130, and the cable 133 is a flexible long dimension on the inner side supported by the two connecting walls 129, 130. As a member, the hose 134 is a flexible elongated member on the outer side where the above-mentioned two engaging protrusions 128a, 128a are in contact with their outer surfaces.

The cable 133 has a soft vinyl protective film and is connected to the temperature sensor 73, and the hose 134 made of a hard elastic material is connected to the head cover 38 for guiding breathing gas.

And above-mentioned hook 128 is made up of base plate part 128b and a plurality of, for example, two branch plate parts 128c, 128c, and its base end portion of base plate part 128b is connected on the upper cover 83 along its entire length, and branch plate part 128c, 128c is along the cable. 133 and hose 134 are connected to the above-mentioned base plate portion 128b at a plurality of places spaced apart in the longitudinal direction, for example, two places, and at the same time, the above-mentioned engaging protrusion 128a is protruded at the front end portion, and between the branch plate portions 128c, 128c Along the entirety of the two hooks 128 , 128 there is provided a reinforcing wall 132 supporting a cable 133 between the two connecting walls 129 , 130 .

An exhaust pipe 118 is connected to the lower side of the cylinder head 37 which is not covered by the above-mentioned shroud 82, and the upstream end thereof is connected to the exhaust port 48, and the downstream end of the exhaust pipe 118 is connected to the rear wheel WR right side. On the muffler 119.

With particular attention to FIGS. 3 and 4 , a transmission case 136 extending to the left side of the rear wheel WR is connected to the crankcase 35 in a state facing forward in the traveling direction of the motorcycle. The transmission case 136 is composed of the following parts: a case body 137 integrally connected to the case body 35b of the above-mentioned crank case 35 and extending rearward; a first transmission chamber 140 is formed between the case body 137 and the The left side cover 138 connected to the box body 137 on the left side; the second transmission chamber 141 is formed between the box body 137 and the right side cover 139 connected to the right rear portion of the box body 137 .

A support arm portion 142 protrudes from the front portion of the case body 137 on the transmission case 136 and is disposed on the side surface of the cylinder block 36 of the engine E. The support arm portion 142 is swingably supported by the link mechanism 33 On the frame 25.

An axle 143 of the rear wheel WR is rotatably supported by the rear portion of the case main body 137 of the transmission case 136 and the right side cover 139 . In addition, as shown in FIG. 1 , a rear shock absorber 144 is provided between the rear portion of the box main body 137 and the up frame 29 a on the rear frame tube 29 of the frame 25 .

The continuously variable transmission M is a V-belt type continuously variable transmission accommodated in the first transmission chamber 140 , and a reduction gear row 145 is provided between the continuously variable transmission M and an axle 143 .

The continuously variable transmission M is equipped with: a drive side transmission pulley 146 connected to the end of the crankshaft 44 outside the second ball bearing 46; The rear portion of the box main body 137 and the driven side drive pulley 149 on the driven shaft 147 on the right side cover 139 ; the endless V-shaped belt 150 wound on the two drive pulleys 146 , 149 .

The drive-side drive pulley 146 is composed of a fixed pulley 146a fixed on the crankshaft 44 and a movable pulley 146b mounted on the crankshaft 44 in an axially slidable manner. A V-shaped annular groove 151 is formed between the belt pulleys (half bodies) 146a and 146b, and the V-shaped belt 150 can be inserted into the annular groove 151 . In addition, a slope plate 152 is fixed to the crankshaft 44 on the back side of the movable pulley 146a, and a plurality of gravity rollers 153 are accommodated in a floating state between the movable pulley 146a and the slope plate 152 . Moreover, when the rotation speed of the crankshaft 44 increases, the gravity roller 153 bearing the centrifugal force moves outward along the radial direction of the crankshaft 44, so that the movable pulley 146a approaches the fixed pulley 146b. Therefore, the contact radius at which the V-belt 150 contacts both pulleys (half bodies) 146a, 146b becomes large.

On the other hand, the driven side transmission pulley 149 includes: a support cylinder 154 connected to the driven shaft 147 via a centrifugal clutch 148 and rotatably supported on the driven shaft 147; a fixed belt pulley 149a integrally formed with the support cylinder 154; It can be supported on the support cylinder 154 relative to the fixed pulley 149a, approaching or leaving, and the movable pulley 149b is applied by the spring to the direction of the fixed pulley 149a. The V-belt 150 is inserted between the two pulleys ( half body) 149a, 149b formed between the V-shaped annular groove 155. Moreover, the movable belt pulley 149b can move axially so that the contact radius of the V-belt 150 with the driven side drive pulley 146 increases as the contact radius of the V-belt 150 contacts with the driven side drive pulley 149. Since the radius becomes smaller, a continuously variable transmission can be performed between the crankshaft 44 and the driven shaft 147 as the crankshaft 44 rotates.

The kick starter shaft 156 is rotatably supported on the left side cover 138 of the transmission case 136, and a kick starter pedal 157 (see FIG. 1 ) is provided at the outer end of the kick starter shaft 156. In addition, in the above-mentioned On one side of the inner surface of the left side cover 138, between the kick starter shaft 156 and the crankshaft 44, there is provided a pedal that can transmit the power of the kick starter shaft 156 to the crankshaft 44 as the kick starter pedal 157 is stepped down. Formula starter 158.

The reduction gear row 94 is provided between the driven shaft 147 and the axle 143, and is accommodated in the second transmission chamber 141. The rotational power of the driven shaft 147 of the continuously variable transmission M is reduced by the reduction gear row 94, and transmitted to the axle 143 of the rear wheel WR. .

Between the front parts of the two rear frame tubes 29, 30 on the vehicle frame 25, a glove box 160 capable of accommodating helmets and the like is supported, and it is arranged above the above-mentioned engine E. A fuel tank 161 is supported between the rear portions of 30.

In addition, at the front part of the upper frame 29b on the left rear frame tube 29 among the two rear frame tubes 29, 30, a secondary air filter for purifying the secondary air supplied to the exhaust gas 48 of the engine E is supported. The air uses an air filter 162 . The downstream end of the suction hose 163 is connected to the suction port of the air cleaner 162 for secondary air, and the upstream end of the suction hose 163 is inserted into the rear right side of the two rear frame pipes 29 and 30 . The rear end portion of the upper frame 30 b on the frame tube 30 .

The secondary air control valve 164 provided between the engine E and the air cleaner 162 for secondary air is supported by a support plate 165 attached to the upper part of the upper frame 29a of the rear frame pipe 29 on the left side.

In addition, at the bottom of the upper frame 29a of the rear frame pipe 29 on the left side, a connecting pipe portion 166 communicating with the inside of the upper frame 29a is provided for leading cooling air from the continuously variable transmission M of the power unit P. The conduit 167 is connected to the connection pipe portion 166 described above.

The vehicle frame 25 is covered with a synthetic resin body cover 168. The vehicle body cover 168 is equipped with: a foot shield 169 covering the front of the driver's feet; The footrest floor 170 connected to the lower part; the side cover 171 connected to the footrest floor 170 and covering the rear part of the vehicle body from both sides.

The side cover 171 is provided with an openable and closable seat 172 that covers the glove box 160 and the fuel tank 161 from above.

Hereinafter, the operation of this embodiment will be described. On the crankcase 35 of the engine body 34, an oil pump 66 capable of drawing lubricating oil from a lubricating oil storage portion 65 in the crankcase 35 is installed, and a lubricating oil supply passage 67 for guiding lubricating oil for lubricating the valve rocker mechanism 52 is connected to the crankcase 35. The oil pump 66 is connected and installed on the crankcase 35 , the cylinder block 36 , the cylinder head 37 and the cylinder head cover 38 .

As long as the engine is running, regardless of the operating state and posture, the lubricating oil supply passage 67 that guides the lubricating oil discharged from the oil pump 66 for lubricating the valve rocker mechanism 52 is filled with lubricating oil. The element portion 73a is arranged to face the lubricating oil supply passage 67, so it can withstand changes in the operating state and posture of the engine E as hard as possible, and can always accurately and quickly detect the engine temperature. Complex structures are required.

Moreover, since the lubricating oil supply passage 67 is arranged on the cylinder head 37 at a position closer to the intake air 47 than the exhaust gas 48, it can withstand the influence of heat from the external environment on the outer surface of the engine body 34 as hard as possible, and It can detect the engine temperature well and quickly, so that it can detect the engine temperature well even in the state of low rotation speed (idling state) after the engine E is started.

In addition, the engine E has a forced air-cooled structure in which cooling fins 36a..., 37a... are provided on the cylinder block 36 and the cylinder head 37. Therefore, the engine temperature can be accurately detected without being affected by the cooling fins 36a..., 37a..., and the structure for installing the temperature sensor 73 is also simplified.

In addition, since the motorcycle starter 111 that can be energized according to the detection value of the temperature sensor 73 is installed on the carburetor 108 that is connected with the air inlet 47, it can open and close the starter mixer that is arranged on the carburetor 108. The air passage 113, therefore, can optimize the air-fuel mixture supplied to the engine E at the time of starting based on the engine temperature accurately measured by the temperature sensor 73, and can improve the warm-up performance of the engine E.

Furthermore, the cylinder block 36 and the cylinder head 37 are covered with a shield 82 formed between the cylinder block 36 and the cylinder head 37 to cover the circulation passage 81 through which the air for forced air cooling circulates, and the temperature sensor is installed on the cylinder head cover 38. 73, so that it will not be affected by the forced cooling air, so although it is a forced air-cooled engine, it can accurately detect the engine temperature.

Although the upper side of the cylinder head 37 is provided with a flat installation surface 97 that opens the air intake 47, and an air intake pipe 98 is connected to the middle of the installation surface 97 through a heat insulator 99, but the upper cover 83 of the shield 82 An opening 105 for fitting and positioning the heat insulator 99 is provided thereon.

Therefore, by fitting in the opening 105, the heat insulator 99 can be positioned and held on the shield 82, and since the threaded holes 103... 1 タ) 99 plays the function of guiding the bolts 104 screwed in the threaded holes 103..., so the bolts 104... can be easily screwed and tightened in the threaded holes 103..., and the assembly performance can be improved.

In addition, since the exhaust port 106 is formed between a part of the inner surface of the opening 105 provided on the upper cover 83 made of synthetic resin and a part of the side surface of the heat insulator 99, the air is discharged from the exhaust air 106 by the user. The warm air heats the intake pipe 98, which can improve the preheating performance. Moreover, the mold part for forming the opening 105 when the upper cover 83 is press-molded is made relatively large to include the part corresponding to the above-mentioned exhaust air 106, and the strength is improved. lifespan.

Furthermore, since the thickness T of the heat insulator is set to be larger than the distance between the mounting surface 97 and the shield 82, by fitting the heat insulator 99 into the opening as if pressing on the mounting surface 97, In 105, it is possible to prevent the heat insulator 99 from falling off from the shield 82 during assembly, and to further improve assembly performance.

Furthermore, although the spark plug cap 121 connected to the spark plug 51 mounted on the right side of the cylinder head 37 and the ignition coil 126 are connected by a high-strength flexible wire 123, the ignition coil 126 is supported on the rear frame tube 30 on the right side. , so that it is located at the rear of the cylinder head 37, and the other end of the above-mentioned high-strength flexible wire 123 connected to the ignition coil 126 is folded back from the front and rear of the spark plug cap 121 to form a U shape, and is connected to the spark plug cap 121 superior.

Therefore, the high-strength flexible wire 123 connected to the plug cap 121 extends forward from the plug cap 121, even if the plug cap 121 is connected to the frame 25 arranged outside the plug cap 121, that is, the right side. The distance between the rear frame tubes 30 is narrow, and interference with the frame 25 can also be avoided, and the degree of freedom in arranging the high-strength flexible wires 123 can be increased. Furthermore, the comparison of setting the bending radius of the high-strength flexible wires 123 Large, can improve the durability of the high-strength flexible wire 123.

The shield 82 is equipped with upper and lower pairs of upper and lower covers 83, 84 that cooperate with the cylinder block 36 and the cylinder head 37 to cover each other. A fitting hole 120 is formed between the joint surfaces 86 of the two covers 83, 84. The fitting hole 120 is used to fit a spark plug cap 121 connected to the spark plug 51 mounted on the right side of the cylinder head 37 . Moreover, the upper cover 83 is integrally provided with a visor 122 covering the fitting portion of the spark plug cap 121 facing the fitting hole 120 from above, and an anti-rotation positioning portion 122a is formed on the visor 122. The elastic force exerted by the linear wire 123 makes it elastically press in one direction around the axis of the spark plug 51, and the spark plug cap 121 is in contact with the anti-rotation positioning portion 122a and is locked, so that it supports the spark plug cap 121 against the elastic force.

That is, since the spark plug cap 121 contacts and is locked with the anti-rotation positioning portion 122a formed on the brim 122 by the elastic force acting on the high-strength flexible wire 123, it is possible to prevent the spark plug cap 121 from winding around during the engine operation. The axis of the spark plug 51 rotates, therefore, the high-strength flexible wire 123 can be prevented from vibrating, and the high-strength flexible wire 123 can be effectively prevented from contacting other components.

And because the fitting portion toward the fitting hole 120 of the spark plug cap 121 is covered from above by the visor 122, so the parts above the engine body 34, such as the muddy water falling on the glove box 160, etc. can not be prevented. Attached to the contact portion of the high-strength flexible wire 123 and the spark plug cap 121 .

In addition, since the clip 124 holding the high-strength flexible wire 123 is installed on the clip mounting seat 125 formed on the upper cover 83 connected to the visor 122, the high-strength flexible wire 123 can be held on the side of the spark plug cap 121. Nearby, the vibration of the high-strength flexible wire 123 can be prevented more effectively, and the strength of the visor 122 can be increased by the clip mount 125 .

In addition, on the upper cover 83 of the shield 82, a pair of hooks 128, 128 and a pair of connecting walls 129, 130 are integrally provided, and a rectangular passage surrounded by these hooks 128, 128 and connecting walls 129, 130 is provided. The hole 131, the pair of hooks 128, 128 have engaging protrusions 128a, 128a protruding to the side close to each other at the front end, facing each other and standing up from the outside of the upper cover 83; and the two connecting walls 129, 130 The above-mentioned two hooks 128 and 128 are connected to face each other, and stand upward from the outer surface of the upper cover 83 .

A cable 133 and a hose 134 that are stacked and pressed between the two hooks 128 and 128 are sandwiched between the engaging protrusions 128a and 128a of the two hooks 128 and 128 and the two connecting walls 129 and 130 .

Therefore, when the upper cover 83 made of synthetic resin is molded, the pair of hooks 128, 128 and the pair of connecting walls 129, 130 can be integrally formed with a simple mold structure that does not adopt the slideway type. The parts other than the upper cover 83 that the motorcycle possesses can stably support the cable 133 and the flexible pipe 134 with the two hooks 128, 128 and the two connecting walls 129, 130, which is convenient to reduce the number of parts and the man-hours for assembling operations, and the cable 133 And the hose 134 can be stably supported on the flat surface of the upper cover 83 .

Furthermore, the through hole 131 is covered by overlapping cables 133 and hoses 134 , and the inside of the upper cover 83 , that is, the inside of the shroud 82 , cannot be seen from the through hole 131 when the cables 133 and the hose 134 are supported.

That is, the through hole 131 is covered by the cables 133 and hoses 134 stacked on top of each other. Since the cooling air is prevented from leaking out of the shroud 82, the cooling performance of the forced air-cooled engine E can be stably maintained, and the cables can be connected to each other. 133 and the hose 134 are supported on the shield 82, and since the cooling air can be prevented from leaking out from the through hole 131, dust will not be sprayed to the outer surface side of the shield 82, and the decline of the appearance can be prevented.

The above-mentioned cable 133 has a soft vinyl protective film and is connected to the temperature sensor 73. In addition, the above-mentioned hose 134 is made of a hard elastic material for guiding breathing gas, and is connected to the cylinder head cover 38 so that the outside of the cable 133 The vinyl protective film of the two hooks 128, 128 is fully attached to the two connecting walls 129, 130, and at the same time, the engaging protrusions 128a, 128a at the front ends of the two hooks 128, 128 are reliably stuck on the outside of the hose 134, which can be supported more reliably. Cable 133 and hose 134.

And above-mentioned hook 128 is made up of base plate part 128b and a plurality of, for example, two branch plate parts 128c, 128c, and its base end portion of base plate part 128b is connected on the upper cover 83 along its entire length, and branch plate part 128c, 128c is along the cable. 133 and hose 134 are connected to the above-mentioned base plate portion 128b at a plurality of places spaced apart in the longitudinal direction, for example, two places, and at the same time, the above-mentioned engaging protrusion 128a is protruded at the front end portion, and between the branch plate portions 128c, 128c Along the entirety of the two hooks 128 , 128 there is provided a reinforcing wall 132 supporting a cable 133 between the two connecting walls 129 , 130 .

Therefore, even if the reinforcing wall 132 is used, the inner cable 133 can be supported, the cable 133 and the hose 134 can be supported more stably, and the strength of both hooks 128 and 128 can be increased by the reinforcing wall 132 .

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made in the present invention described in the scope of the claims.

As described above, according to the first aspect of the present invention, when molding a cover made of synthetic resin, a pair of hooks and a pair of connecting walls can be formed with a simple mold structure other than the slideway type. In one piece, multiple flexible long parts can be stably supported by two hooks and two connecting walls without using parts other than the cover, which is convenient to reduce the number of parts and assembly man-hours, and the flexible long parts can be stably supported on the cover on the flat surface. Furthermore, the through hole is covered by a plurality of flexible elongated members overlapping each other, and the inside of the cover cannot be seen from the through hole in a state in which the flexible elongated member is supported.

In addition, according to the second aspect of the present invention, the vinyl protective film on the outer surface of the cable is fully adhered to the two connecting walls, and at the same time, the engaging protrusions at the front ends of the two hooks are securely engaged with the serpentine tube or hose. On the outside, a plurality of flexible elongated parts can be supported more reliably.

According to the third aspect of the present invention, the inner flexible elongated member can be supported even with the reinforcing wall, a plurality of flexible elongated members can be supported more stably, and the strength of both hooks can be increased by the reinforcing wall.

Furthermore, according to the fourth aspect of the present invention, since the through hole is covered by a plurality of flexible elongated members, the cooling air is prevented from leaking out of the shroud, so the cooling performance of the forced air-cooled engine can be stably maintained, and A plurality of flexible elongated members can be supported on the hood, and dust is not sprayed to the outer surface side of the hood, thereby preventing deterioration in appearance.

Claims (4)

1. the supporting structure of flexible long size parts, it is characterized in that: on the plastic cover (82) of covering function parts (34), be provided with a pair of hook (128) and a pair of connecting wall (129 integratedly, 130), simultaneously, be provided with by above-mentioned each hook (128) and each connecting wall (129, the through hole of the rectangle that 130) surrounds (131), above-mentioned a pair of hook (128) has to mutually near a side-prominent engaging teat (128a) at leading section, mutually face-off and upwards erect from the outside of above-mentioned cover (82); And above-mentioned two connecting walls (129,130) connect between the two ends of these hooks (128), upwards erect from the outside of above-mentioned cover (82), at least comprise and above-mentioned two connecting walls (129 of mutual stacked usefulness, 130) the flexible long size parts (134) in the flexible long size parts (133) of Zhi Cheng inboard and above-mentioned two outsides that contact with the outside of engaging teats (128a), and be pressed into a plurality of flexible long size parts (133 between above-mentioned two hooks (128), 134) be clamped in the engaging teat (128a) and above-mentioned two connecting walls (129 of above-mentioned two hooks (128), 130) between, above-mentioned two connecting walls (129,130) be provided with reinforced wall (132), above-mentioned reinforced wall (132) between above-mentioned two connecting walls (129,130) along being provided with between whole two hooks (128).

2. according to the supporting structure of the flexible long size parts of claim 1; it is characterized in that: the flexible long size parts of above-mentioned inboard are the cables (133) with soft vinyl protective film, and the flexible long size parts in the above-mentioned outside are coil pipe or the flexible pipes (134) that the elastomeric material by hard constitutes.

3. according to the supporting structure of the flexible long size parts of claim 1, it is characterized in that: above-mentioned hook (128) is made of baseplate part (128b) and a plurality of branches boards (128c), its base end part of aforesaid substrate portion (128b) is connected on the above-mentioned cover (82) along its total length, above-mentioned branch board (128c) is along flexible long size parts (133,134) the empty standard width of a room in an old-style house of length direction every many places be connected with aforesaid substrate portion (128b), simultaneously, be equipped with above-mentioned engaging teat (128a) at leading section.

4. according to the supporting structure of the flexible long size parts of claim 1, it is characterized in that: the above-mentioned functions parts are engine bodys (34) of forcedly air-cooled engine, and above-mentioned cover is the guard shield (82) that covers the part of above-mentioned engine body (34).

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