TWI322112B - Motorcycle - Google Patents

Description

IX. EMBODIMENT OF THE INVENTION: The present invention relates to a locomotive comprising an engine unit having a belt continuously variable transmission device, and a skeleton by which the engine unit is supported to be vertical Swinging ground. [Prior Art] For example, a pedal type locomotive is generally constructed to support an engine unit by a skeleton to be vertically swingable, in which an engine body and a belt continuous variable speed transmission are manufactured to each other. In one piece, one of the engine units supports a rear wheel at the rear end, and a saddle seat is mounted on the frame. In the case of such a locomotive, only the engine vibration can be prohibited from being transmitted to a rider via a skeleton. It is common practice to support an engine unit on the skeleton via a link mechanism (for example, see Patent Document). . Also, in Patent Document 1, cooling air is introduced into a belt chamber of one of the engine units via a cooling pipe to cool one of the belts of a continuous variable speed transmission. In this case, to absorb the vertical swing of the engine unit, the cooling tube is connected to a belt chamber by a bellows type flexible portion. [Patent Document 1] JP-A-2003-182674 [Problem to be Solved by the Invention] Incidentally, in the case where the engine unit is supported by the link mechanism on the skeleton, The swing center of the engine unit is disposed at the joint of the link and the engine unit, and the direction in which the engine unit swings becomes complicated 'for example, 'vertical and longitudinal. Therefore, it is necessary to adjust the cooling pipe 121337.doc 1322112 herein. In the present invention, a part of the engine unit is pivoted around the skeleton portion of the engine unit of the skeleton. "I want to be a part of the AH-Hui engine unit support ^ and the gums on the moon and there is no need to dry. The Hailian Cup armor is used for the unit swing type engine suspension unit of a locomotive. Therefore, the engine unit 1 swings without substantially displacing the swing center from the engine unit support portion of the skeleton. In addition, in this case, "will not move roughly# means similar to the case of a branch by an elastic view or the like, and "not to marry a, ·mountain&, 赘...roughly The displacement includes a shift corresponding to the deflection of the elastic bushing. Also, in the present invention, a part of the "...a building" means "in the case of a branch-crankcase, which also includes a cut-cylinder block or a cylinder head or the like. [Effects of the Invention] With the locomotive according to the present invention, since the engine unit is supported to swing centering on the engine unit supporting portion of the "Haiyue frame", the engine swings only vertically and thus one of them The flexible portion of the cooling tube can absorb only the configuration of vertical fluctuation. Thereby, the flexible portion is formed by a flexible portion having a high strength corresponding to the external force and the suction force in the belt chamber, and thus it is ensured that a sufficient amount of air is taken, thereby enhancing the belt chamber. Cooling. According to the present invention, since the engine unit is supported to swing centering on the engine unit supporting portion of the skeleton (in other words, without using a link for supporting therebetween), the responsiveness to the throttle valve opening operation can be enhanced, Therefore, the direct feeling at the time of starting and accelerating can be improved. That is, in the case where such a link is inserted between the engine unit and the bobbin, when the 121337.doc -9· 1322112 μ valve opening operation is performed to start traveling from a stopped state, the engine torque is at The transmission to the rear wheel is first absorbed by the link and then transmitted to the rear wheel' so that the presence-response delay is felt. Therefore, it will be felt that the vehicle travels behind the trickle opening operation before a beat, and thus a sufficient direct feeling cannot be obtained especially at the time of starting. According to the present invention, since no link is inserted, the problem can be suppressed. [Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. 1 through 14 illustrate a view of a locomotive in accordance with an embodiment of the present invention. Further, before and after the reference to the description of the embodiment, and left and right refers to before and after, and left and right, as seen in the state of sitting on the seat. In the drawings, reference numeral 丨 denotes a pedal type locomotive. The locomotive includes: a unit swing type engine unit 8 having a belt continuous variable speed transmission 17; and a high tensile steel tube 2 supporting the engine unit 8 for the same vertical swing; A saddle seat 9 mounted on the skeleton 2. The locomotive 1 comprises: a front and a 6, which are supported by a head pipe 3 positioned at the front end of the skeleton 2 to be steered left and right; a steering handle 5 disposed at an upper end of the front 6; a front wheel 4' disposed in front of the front A lower end of one of the six; a rear wheel 7, which is disposed at a rear end of one of the engine units 8; and a rear pad 1A that is inserted between the engine unit 8 and the bobbin 2. Similarly, the locomotive 1 comprises: a front cover 11 covering the front of the head pipe 3; a foot guard 12 covering the back of the head pipe 3 and in front of the rider's legs; - 121337.doc • 10· 1322112 ' A drive pulley l7a at the left end of the crankshaft 18b in the transmission case 8b; a driven pulley 17b disposed at the rear end of the transmission case 8b; and a V-belt 17c wound around the drive pulley 17a and the driven pulley 17b. Similarly, a main shaft 17d (to which the rotation of the driven pulley 17b is transmitted) and a drive shaft 17e are disposed in the transmission case 8b, and the rear wheel 7 is mounted to the drive shaft 17e. - V-Belt Continuous Variable Speed Transmission 17 includes a winding diameter changer mechanism 26 that uses a controller (not shown) to utilize a variablely operated rider accelerator based on engine speed, vehicle speed or the like A belt winding diameter of one of the drive pulleys 17a is variably controlled between the position and a top position (see Fig. 4). The winding diameter changing mechanism 26 includes: a driving motor 26a; - a reciprocating driving gear 26b' axially moving one of the driving side belt pulleys (not shown) to change a winding diameter; and a reduction gear Group 26c, which transmits the rotation of drive motor 26a to reciprocating drive gear 26b. φ As shown in Figs. 5 and 6, the engine unit 8 includes a balancer mechanism 27 including a balancer shaft 27a and suppressing engine swing due to the inertia force. The balancer mechanism 27 is configured to rotate at the same rotational speed as the rotational speed of the crankshaft 18b of the crank mechanism 18 and in a direction opposite to the rotational speed of the crankshaft 18b. The balancer mechanism 27 includes: a balancer shaft 27a disposed above the crankshaft i8b in the crankcase 8c and disposed parallel to the crankshaft (10); a balancer weight 形成 integrated with the balancer shaft 27a to be perpendicular to the balancer The shaft extends. The balancer weight 27b extends to be positioned between the left and right counterweights 121337.doc 12 18a, 18a of the crankshaft 18b. The left and right sides of the balancer shaft 27a are supported by bearings 28 and 28 therebetween.

On the crankcase 8c, a balance squeezing θ A ω wheel 27c is engaged to the balancer shaft 27a' on the inner side of the right bearing 28 with a cushioning member 27d therebetween. The balancer gear 27c is engaged with a drive gear ub that is coupled to the crankshaft 8b. Here, the secondary inertia I generated by the rotation of the crankshaft 18b of the crank mechanism 18 includes a slave transfer point! The magnitude of the system is constant and rotated; and a translational amount that is fixed in the direction and varies in magnitude due to the rotation of the crankshaft m. Similarly, the balancer mechanism 27 is constructed such that the acceleration caused by the even force (which is generated by the primary inertial force of the crankshaft (10) - the rotational component balance is generated by the inertial force generated by the rotation of the balancer shaft 27a) And the acceleration caused by one of the one-time inertial forces of one of the crankshafts (10) is substantially opposite in direction to each other and is substantially the same in magnitude around a pivot 5丨 (which is part of the support engine unit 8). In order to make the two accelerations substantially opposite in magnitude, the magnitudes are substantially the same, as shown in FIG. 12, 'A momentary center of rotation is disposed on the pivot 51, which is not generated by the crank mechanism 18 The i-order inertia force fi and the first inertia force of the balancer mechanism 27! 2 caused by the vibration. A method of arranging the instantaneous center of rotation on the pivot 51 will be explained below. As shown in Fig. 13, the trajectory shape of the first inertial force F1 of the crank mechanism 18 drawn in one cycle by the vector representation is a predetermined elliptical shape si. On the other hand, the first inertia 々F2 of the balancer mechanism 27 draws a vector trajectory having a standard circular shape 52. The balancer shaft 27a and the crankshaft 18b 121337.doc • 13· 丄 322112 are configured such that a crankshaft connected between the two shafts is substantially parallel to a center of gravity and a pivot η connected to the engine unit 8 The center of gravity - the target position line L1. Similarly, the main axis of the ellipse of the first inertial force of the crank mechanism 18 is arranged to be substantially the same as the major axis of the ellipse of the first inertial force of the crankshaft-balancer linear L2 axis mechanism.

An instantaneous rotation of the Wei can be placed near the pivot 51 by controlling the elliptical shape of the successive inertial force of the crank mechanism such that the acceleration caused by the translational force and the acceleration caused by the even force are substantially opposite in direction. And the magnitude is approximately the same in the vicinity of the x-axis 51. As an example, an explanation has been given for the case where the balancer shaft 27a and the crankshaft 18b are configured such that the crank-balancer line L2 connected between the two shafts is substantially parallel to the engine unit 8 Center of gravity g and pivot 5

Further, the primary inertia force F2 of the balancer mechanism 27 is configured such that the magnitude of the diameter of the standard circular shape S2 and the center-of-gravity-target position of the curved line are L1. However, the configuration of the two axes is not limited to this. This will be explained below. The elliptical shape of the sub-inertial force caused by the crankshafts 18 is controlled by adjusting the balance clock i8a of the crank mechanism 18 to v. By adjusting the counterweight 18a for position and weight, it can be easily caused by the crank mechanism 18! The elliptical shape of the sub-inertial force is controlled to a predetermined elliptical shape S1. Similarly, by controlling the balancer weight 27b of the balancer mechanism 27 for the position and weight adjustment mechanism 27, the inertial force of the balancer mechanism 27 can be controlled so that a trajectory shape drawn in the vector table is changed to have a trajectory shape The standard circular shape S2 of the predetermined magnitude. I21337.doc .14 - 1322112 20 one of the substantially straight horizontal portions 20 (extending substantially linearly and configured to pass under the footrest (foot portion) 15 and inside the bottom cover 16. The maintenance door opening 16a is formed at the bottom The maintenance opening 16a covered by the cover member 76 can be opened and closed on the portion of the cover 16 facing the first air tube 6〇. The cooling tube 60 includes: an element 65 disposed under the footboard 15;

An intermediate tube 66 extending rearwardly of the member 65; and a flexible tube (flexible portion) having flexibility and extending rearwardly from the intermediate tube 66 to provide connection and communication between the intermediate tube 66 and the interior of the transmission case 8b, and The tube 67 is positioned just adjacent one of the engine units supported on the frame. Similarly, element 65, intermediate tube 66 and flexible tube 67 are detachably held by strip members 68, 68, 68, respectively.

The transmission case 8b includes a case 8g adjacent to the left end of the crankcase 8c for rearward extension, and a case cover detachably mounted to the left mating surface of the case 8g, and a cover 8h and a case 8g The defined space provides a belt room. Here, the drive pulley 17a is formed with a plurality of blades, and the torque of the drive pulley W causes the blades to blow a cooling air into the belt chamber. The lid 讣 is divided into a box 8m and a box 8n which is also attached to the box at a fixed position before being fixed to the box 8g by a plurality of bolts 73. The front case 8m is integrally formed with an air inlet 8P (which extends forward in a cylindrical manner) and the flexible tube 67 is detachably held by the strip member 68 to the air inlet 8" One of the belt chamber connecting portions of the cooling pipe 60. Similarly, an air discharge port (not shown) is formed at the rear end of the transmission case. The filter is passed through the element 65 through the traveling airflow that has flowed into the left and right bottom covers 16 to 121337.doc -17. 1 b 66 and the flexible tube 67 are thereby plunged into the transmission case 8b from the air inlet 8p by the drive pulley 17a and discharged to the outside from the rear end of the transmission case, and simultaneously cool the V-belt 17c and the like. 65a is formed on the front wall of the member 65 to extend forward, and the bracket 65& is fixed to one of the brackets 7'' of the radiator support member 7 by means of a bolt 71, and the bracket 70a is connected to bridge the left and The lower right tube 2〇, 2〇. The rear brackets (vehicle body side fixing portions) 66a, 66b are respectively formed on one of the front lower edge and the rear upper edge of the intermediate tube 66 to protrude downward and upward. 66a is fixed to a bracket 2〇f by means of a bolt 72 (which is connected to the lower 20), and the rear bracket 66b is fixed to a bracket 22f (which is fixed to the engine suspension 22) by a bolt 72. The π member 65 is a cylinder having a triangular cross section and is configured to dispose a body 65b The air is filtered in a component box 75. The component box is an air inlet 75c and thus the component body 65b is disposed opposite the inner side of the bottom cover 16 with a predetermined gap therebetween. The intermediate tube 66 is longitudinally elliptical in shape and configured to pass The lower portion 2c is below the horizontal portion 20c and the side frame 44a present in a storage position. The cooling officer 60 is substantially straight in its total length to extend from the air inlet 8p (which defines a connection to the belt chamber) to Positioned at the front end of the footrest 15 in front of the vehicle. As shown in Fig. 8, the 'flexible tube 67 is configured such that its centerline b is seen above and adjacent to the axis a of the pivot member 47 as viewed from the side. The bracket 66b is fixed to the engine suspension 22 after the intermediate tube 66 on the opposite side of the flexible tube 67 and the transmission phase 8b. 121337.doc -18- In this way, the flexible tube 67 becomes available in the engine The vertical swing stroke of the unit 8 around the axis 51 is at a minimum The state of the process (the free line between the solid line indication in Fig. 9 and the state at the maximum stroke (indicated by the double-dotted line). In this case, since the flexible tube 67 is disposed near the perch 51, Therefore, the amount of bending accompanying the stroke change is smaller than the amount of curvature in the case where the flexible tube 67 is disposed at a position away from the pivot of the engine unit. According to this embodiment, due to the bowing, although; The engine unit 8 is pivoted about the axis a of the pivot structure 47 (which constitutes the engine unit support portion), so that the engine unit 8 swings only vertically and thus the cooling tube The flexible portion only absorbs the configuration of vertical fluctuations. Thereby, the flexible portion can be formed by a tensile portion which is high enough to correspond to an external force and a suction force in the belt chamber, and thus it is possible to ensure that a sufficient amount of air is taken: thus, the cooling of the V-belt 17c can be enhanced effectiveness. 2. According to this embodiment, 'a portion of the engine unit 8 is pivoted on the Guhai bone: to oscillate about the axis a of the spindle 51 of the pivot member 47 (which constitutes the engine unit branch portion), In other words, without using a link to control between them, the link is usually used for a unit swing type engine to hang up. Therefore, the engine unit 8 can swing without substantially shifting its swing center from the axis a. The responsiveness to the throttle valve opening operation can be increased as compared to the case where a linkage mechanism is inserted, thereby achieving a direct sense at the time of starting and accelerating. That is, when the link mechanism is inserted between an engine unit and a skeleton, when the inter-flow opening operation is performed to start traveling from a stopped state, the presence-response delay is felt, and the material torque is transmitted after being transmitted to one. The wheel is first absorbed by the linkage and then transmitted to the rear wheel. The amount of vertical fluctuation of the connection of the bowing unit 8 to the cooling tube can be reduced, in particular, as compared to the portion of the upper portion of the cylinder shaft A of 12I337.doc 19 1322112. Therefore, the amount of vertical fluctuation of the flexure 67 is reduced so that the flexible tube 67 can be structurally simplified and its strength is correspondingly increased. Furthermore, since the flexible tube 67 is configured to be positioned near the pivot member 47 of the skeleton 2, the amount of vertical fluctuation of the flexible tube 67 can be reduced accordingly, thereby enabling the flexible tube 67 to be further simplified in structure and Its strength is easily guaranteed. According to this embodiment, since the cooling pipe 60 is formed such that the entirety of a flexible pipe 67 is substantially straight in the longitudinal direction of the shank, the air resistance to the cooling air flowing into the pipe 60 can be reduced. Therefore, it is ensured that a sufficient amount of air is drawn into the belt chamber, and thus an improvement in engine responsiveness is achieved. According to this embodiment, the cooling tube 60 can be made in volume since the cooling tube 60 is formed to extend from the connection of the engine unit 8 to the belt chamber to the front end of a bicycle pedal 15 positioned in front of a vehicle. It is bigger. This ensures that a large amount of air is taken up during starting and accelerating, thereby enhancing the cooling of the belt-shaped belt 1 7 c. Also, since the flexible tube 67 is configured such that the center line b passes over the axis a of the pivot member 47 which is a portion of the engine unit 8 supported on the bobbin as seen from a side view, the bellows shape can be reduced The flexible tube 67 is deflected for the following reason, so that the flow resistance in the tube can be correspondingly reduced. That is, regarding the stroke of the suspension device of the engine unit 8, as shown in the day 14 (a), the stroke S1 from the steady traveling state to the maximum contraction state (high load wheeling state) is generally set to be larger than one. From the steady state of travel to 121337.doc -21 - 1322112 Stroke S2 of the maximum extended state. In the case where the flexible tube 67 is disposed on the shaft & of the cut portion of the engine unit, the flexible tube 67 contracts as the engine unit 8 performs a stroke to a maximum contraction state and performs a maximum extension state with the engine unit. Stretched by the stroke. Therefore, as shown in Fig. 14 (b), the amount of the bellows of the transducing (four) becomes the largest in the maximum contraction state and becomes the smallest in the maximum extension state. Since the amount of deflection in the steady traveling state is close to the minimum amount of deflection and is so small, the flow resistance in the tube can be reduced. On the other hand, in the case where the flexible tube 67 is disposed under the axis a of the engine unit branch portion, the flexible tube 67 extends at the stroke of the maximum contraction state and contracts during the stroke to the maximum extension state. . Therefore, the amount of deflection of the bellows of the flexible tube 67 as shown in Fig. 14 (:) is minimized at the maximum contraction shape and becomes maximum at the maximum extension state. Since the amount of deflection of the stable line approaches the maximum amount of deflection and is so large, the flow resistance within the levee is increased. BRIEF DESCRIPTION OF THE DRAWINGS A side view of a locomotive according to an embodiment of the present invention is shown. Figure - shows a side view of one of the skeletons of the locomotive. Figure 3 is a plan view showing the skeleton. Figure 4 is a side view of a display + - JL ^ ' supported on the skeleton to be able to swing vertically. v Fu 【:—The side view of one of the balancer mechanisms of the bow engine unit. • 糸—Displays a cross-sectional view of the balancer mechanism. Figure 7 is a side view showing the bow unit. 121337.doc •22- 丄 A side view of the cooling tubes connected to the engine unit. Figure 9 is a side elevational view of one of the flexible tubes of the cooling tube. Fig. 10 is a cross-sectional view showing the cooling pipe (a cross-sectional view taken along the line x_x in Fig. 8). Figure 11 is a cut-away section showing a cross-sectional view of the cooling tube (a line χι_χι in Figure 8). Fig. 1 is a plan view showing the engine unit support portion of one of the engines according to this embodiment. Figure 1 is a schematic view of the structure of the balancer mechanism of the engine according to the present invention. Figures 14(a)-(c) are diagrams illustrating the configuration of a tube in an engine according to the embodiment. Schematic diagram of the functions and effects. [Main component symbol description] 1 Locomotive 2 Skeleton 3 Head tube 4 Front wheel 5 Steering handle 6 Front fork 7 Rear wheel 8 Engine unit 8a Engine body 8b Gearbox 8c Crankcase I2l337.doc -23- 1322112 8c' Bottom wall front 8d cylinder Body 8e Cylinder head 8f Head cover 8g Case 8h Case cover 8j Suspension unit 8m Front case 8n Rear case 8p Belt room connection part 9 Saddle seat 9a Main seat 9b Rear seat 10 Rear pad 11 Front cover 12 Foot guard 13 Side cover 15 Foot pedal 16 Lower cover 16a Maintenance opening 17 V-belt continuous variable speed transmission 17a Drive pulley 17b Drive pulley 17c V-belt 121337.doc .24 - 1322112 17d Spindle 17e Drive shaft 18 Crank mechanism 18a Balance Hammer 18b Crankshaft 18b' [Drive gear 20 Lower tube 20c Lower horizontal portion 20f Bracket 21 Seat rail 22 Engine suspension 22c Lower side portion 22f Bracket 23 Head tube 24 Upper tube 25 Seat bracket 26 Winding diameter changing mechanism 26a Drive motor 26b reciprocating drive gear 26c reduction gear set 27 balancer mechanism 27a balancer shaft 27b balancer counterweight 27c balancer gear 121337.doc -25· 1322112 27d 28 29 30 31 33 36 44a

50 50a 50b 50c 51 52

65 65a 65b 66 66a 66b 67 68 Cushioning member bearing foot bracket fuel tank radiator storage tank air filter side frame pivot member elastic bushing outer cylinder inner cylinder rubber member frame shaft standard circular shape cooling pipe component bracket bracket middle Tube bracket bracket flexible tube strip member 121337.doc -26- 1322112 70 radiator support member 70a bracket 71 bolt 72 bolt 73 bolt 75 component box 75c air inlet 76 cover member 77 oil pump 78 cooling water pump 79 Alternator 121337.doc -27-

Claims (1)

1322112 ^ 'Ι ι Ι ι Patent Application 荦, Chinese application for patent coverage replacement year n months) X. Patent application scope: A locomotive comprising an engine unit with a t ^ reverse belt type continuously variable transmission and a skeleton, Bone rate. - Yue Yong Fork has prematurely swayed the engine so that the engine can swing vertically. One part of the engine unit is pivoted on the skeleton and swings around the support portion of the engine unit of the skeleton. The locomotive further includes A belt-type continuously variable transmission that is used to introduce cooling air into a belt chamber is housed in the belt chamber, and the cooling tube includes a flexible portion having flexibility Connecting to the belt chamber by the engine unit in the vicinity of a portion supported by the skeleton, and the cooling tube is fixed to the skeleton via a portion of the flexible portion opposite to the belt chamber, and wherein The engine unit includes a balancer mechanism including a balancer shaft and suppressing engine vibration caused by a first inertial force, and wherein the engine unit includes a crank mechanism including a crankshaft, G. generated by the rotation of the crankshaft The first inertial force includes: a rotational component 'the size of the system is determined and rotated; and a translational component whose direction is fixed and the magnitude varies with the rotation of the crankshaft. The acceleration caused by the momentary force generated by the rotation of the crankshaft and the moment of inertia generated by the rotation of the balancer shaft, and the first inertia caused by the crankshaft The acceleration caused by the translational component of the force is substantially opposite to each other and substantially the same in size in the direction in which the engine unit is supported by the portion of the bone. 121337-981127.doc 2. 2. The locomotive of claim 1 is supported on the skeleton. 3. ^年更更) The engine unit is borrowed from the locomotive of claim 1 and placed on the crankcase. The locomotive as requested in item 1, state configuration The cylinder axis is on the skeleton. Wherein one of the engine units is supported by a crankcase to support the crankshaft of the engine unit. Wherein the portion of the engine unit that is inclined to the lower side is directly supported by the locomotive of the second length: 1, wherein the cooling tube is at least a porch chamber connecting portion and a body side as viewed from the side Fixed part of the straight shape. 6. As requested!夕 _ ± ^ Μ Μ, locomotive, wherein the flexible portion is located in the vicinity of the portion of the engine 3 to support the skeleton. 7 of the locomotive, #the cooling pipe from the belt chamber connecting portion 8. The chamber is connected to the footer portion of the driver, and the foot portion is located at the front of the vehicle with respect to the belt cutter. If requested, the locomotive of 1 is viewed from the side, so that the J:zhong, but the tube is configured as an eight-W line through the above-mentioned engine unit, the upper part of the 彡柃+ part is sufficient for the skeleton 121337-98ll27 .doc