JP2018001785A - Three-wheeler with canopy - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a three-wheeler with a canopy that can stably travel without deteriorating travelling performance.SOLUTION: In a three-wheel 10 with a canopy which is equipped with a wheeler main body 51, front wheels FL and FR installed in left and right sides at a front part of the wheeler main body 51, a rear wheel R installed at a lateral-directional center at a rear part of the wheeler main body 51 and a canopy C, the front wheels FL and FR are connected by a parallel link mechanism 20a so as to allow a line I5 connecting center parts a and b of the front wheels FL and FR to incline in a vertical direction with respect to a wheel shaft R1 of the rear wheel R. In a state where a front end side part of the canopy is supported on a part closer to a front side than a saddle 12 in the vehicle main body 51, the canopy C is mounted above the vehicle main body 51, and a center of gravity d of the canopy C in a planar view is positioned inside a triangle in which the center parts a and b of the front wheels FL and Fr are connected to the center part c of the rear wheel R.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a tricycle with a canopy provided with a canopy (roof).

  Conventionally, some tricycles have a canopy to avoid rain, wind, sunlight, and the like (see, for example, Patent Document 1). In this three-wheeled bicycle, a reverse two-wheel front two-wheel mechanism is attached to a wheel support body of a body frame, and one rear wheel is attached to a rear portion of the body frame. In addition, a handle is rotatably mounted on the head pipe of the body frame, and a roof support is erected, and a roof is attached to the roof support. For this reason, this three-wheeled bicycle can be used even in rainy weather, strong winds, or even in sunshine. In this three-wheeled bicycle, the front wheels do not lean with respect to the rear wheels, so that stable traveling is possible when going straight, but one of the front wheels is in an unstable state when turning.

JP 2012-56553 A

  In a tricycle with a canopy, since the weight of the canopy is applied to the vehicle body, it is preferable that the front wheels are not inclined with respect to the rear wheels in order to stabilize the vehicle body during travel, but this causes a problem that travel performance is degraded. There is.

  The present invention has been made to address the above-described problems, and an object thereof is to provide a canopy-equipped tricycle that can stably travel without deteriorating traveling performance. In the description of each constituent element of the present invention below, the reference numerals of corresponding portions of the embodiment are shown in parentheses in order to facilitate understanding of the present invention. The present invention should not be construed as being limited to the configurations of the corresponding portions indicated by the reference numerals of the forms.

  In order to achieve the above-described object, the structural features of the canopy-equipped tricycle (10, 50) according to the present invention include a car body (11, 51) and a pair of front wheels installed on the left and right of the front part of the car body. A line (15) connecting (FL, FR), a rear wheel (R) installed at the left and right center of the rear part of the vehicle body, and a center part (a, b) of the pair of front wheels is an axle (R1 ) And a saddle (12) installed on the upper part of the vehicle body, and a front part of the vehicle body relative to the saddle. (11d) with a canopy (C) mounted above the vehicle body with the front end side portion being supported, and the center of gravity (d) of the canopy in plan view is the center and rear of the pair of front wheels. Located inside the triangle connecting the center (c) of the ring It lies in the fact that is so.

  The pair of front wheels included in the tricycle with a canopy according to the present invention is attached to the vehicle main body via a coupling mechanism in a state where a line connecting the center portions can be inclined at least in the vertical direction with respect to the rear wheel. For this reason, the pair of front wheels can move up and down with respect to the rear wheels, and the three wheels always come into contact with the road surface. As a result, traveling during straight traveling is stable, and in particular, operability does not deteriorate even when the road surface is inclined. Further, the traveling performance does not deteriorate even when the tricycle with a canopy turns.

  In addition, the canopy is attached to the vehicle body so that its center of gravity is located inside the triangle connecting the center of each of the pair of front wheels and the center of the rear wheel in a plan view seen from above. A tricycle with a canopy can run stably, and by attaching a canopy, the tricycle with a canopy can be prevented from losing stability. In the present invention, the center of gravity of the canopy is located inside the triangle connecting the center portion of the pair of front wheels and the center portion of the rear wheel in plan view. The inclination angle in the left-right direction of the canopy tricycle is 15 It is assumed that the temperature is within the range. Further, the line connecting the center portions of the pair of front wheels may be tiltable not only in the vertical direction but also in the front-rear direction with respect to the rear wheel axle.

  Another structural feature of the canopy-equipped tricycle according to the present invention is that the center of gravity of the canopy in a plan view is located forward of the center between the center portion of the pair of front wheels and the center portion of the rear wheels in the front-rear direction. There is in being.

  According to the present invention, since the center of gravity of the canopy is closer to the pair of front wheels provided on the left and right of the front part of the vehicle body than one rear wheel provided at the center of the rear part of the vehicle body, the tricycle with a canopy is more Become stable.

  Still another structural feature of the canopy-equipped tricycle according to the present invention is that the center of gravity of the canopy in plan view and the center of the triangle connecting the center of each of the pair of front wheels and the center of the rear wheel are substantially the same. There is in doing.

  According to the present invention, since the center of gravity of the canopy and the pair of front wheels and the center of the rear wheels arranged so that the shape connecting the central portions thereof is a triangle coincide with each other in plan view, the canopy-equipped tricycle is further stabilized. become.

  Still another structural feature of the canopy tricycle according to the present invention is that the vehicle body is provided with a steering shaft (14) extending obliquely upward and rearward from the middle part of the pair of front wheels, and the center of gravity of the canopy in plan view is In other words, the steering shaft is positioned at a position lower than the canopy on an extension line in the direction in which the steering shaft extends.

  The steering shaft is disposed at the center in the left-right direction at the front portion of the vehicle main body, and extends upward while inclining slightly rearward from the front portion of the vehicle main body. Also, in plan view, the weight of the vehicle body is balanced between the front and rear even if a heavy object is placed between the upper end of the steering shaft and the position where the extension line in the direction in which the steering shaft extends and the canopy intersect. It is the range which can support a thing. Therefore, according to the present invention, even if the weight of the canopy is large, the tricycle can support the canopy in a balanced manner. When the canopy is movable with respect to the vehicle body, the position of the canopy is the position when the canopy-equipped tricycle is run.

  Still another structural feature of the tricycle with a canopy according to the present invention is that at least a part of the canopy is located in front of the center portion of the pair of front wheels.

  ADVANTAGE OF THE INVENTION According to this invention, it can prevent that a driver | operator's step is exposed to rain when driving | running | working at the time of rain. Moreover, when a storage box for storing small items usually carried by the driver or a predetermined device is installed at the front of the vehicle body, it is possible to prevent those items from being exposed to rain.

  Still another structural feature of the canopy-equipped tricycle according to the present invention is that the connecting mechanism is connected to a pair of front wheel axles (FL1, FR1) and is provided with a pair of upper and lower rotating fulcrum (23a). The shaft (23) is provided.

  According to the present invention, the pair of front wheels can be moved up and down by rotatably connecting the connecting members to the upper and lower rotation fulcrums of the pair of upper and lower shafts. In this case, the pair of front wheels can be independently suspended by supporting the pair of front wheels with separate connecting members via vertical shafts. According to this, the pair of front wheels can be moved up and down independently.

  Still another structural feature of the canopy-equipped tricycle according to the present invention is that the connecting mechanism has a pair of upper and lower shafts respectively connected to the axles of the pair of front wheels, and an upper portion and a lower portion of the pair of upper and lower shafts. It is provided with a pair of left and right shafts (21, 22) which are passed and each connecting portion is rotatable relative to each other.

  In the present invention, the connecting mechanism for inclining the pair of front wheels is configured to include a parallel link mechanism. According to this, the pair of front wheels can be moved up and down with a simple structure, and the traveling performance of the canopy-equipped tricycle can be improved.

  Still another structural feature of the canopy-equipped tricycle according to the present invention is that an assist unit (18) having a motor for rotationally driving a rear wheel and a controller for controlling the driving force of the motor has a pair of front wheels and rear wheels. It exists in being installed between the front and back directions.

  Since the tricycle with a canopy according to the present invention is provided with an assist unit, driving when tired or climbing a hill is facilitated. Moreover, since the assist unit is installed between the pair of front wheels and the rear wheel in the front-rear direction, it is possible to prevent the balance of the tricycle with a canopy from being deteriorated by installing the assist unit.

  Still another structural feature of the tricycle with a canopy according to the present invention is that the canopy and the vehicle body are connected by a connecting portion (30) having a shaft portion (34), and the canopy is centered on the shaft portion from the saddle. It is possible to rotate between an open position that is a position apart upward and a closed position that covers the saddle in the vicinity.

  In the present invention, the canopy is rotatable up and down above the saddle. For this reason, when using a tricycle with a canopy, the canopy is raised to the open position to cover the top of the driver, and when the tricycle with a canopy is not used, the canopy is lowered to the closed position so The body can be covered nearby. For this reason, even if it rains when not in use, the saddle and the vehicle body can be prevented from getting wet.

  Still another structural feature of the canopy tricycle according to the present invention is that the open position side engaging portion (33b) provided in the canopy and the open position side when the canopy is provided in the vehicle body and is in the open position. An open position lock mechanism (37) including an open position side engaged portion (38) that engages with the engaging portion and holds the canopy in the open position is provided.

  According to the present invention, when a three-wheeled vehicle with a canopy is run, the canopy can be fixed at the open position, which is the ascending position, so that the canopy can be prevented from falling or shaking due to impact or vibration.

  Still another structural feature of the canopy tricycle according to the present invention is that the closed position side engaging portion (32b) provided in the canopy and the closed position side when the canopy is provided in the vehicle body and is in the closed position. A closed position locking mechanism (35) including a closed position side engaged portion (36) that engages with the engaging portion and holds the canopy in the closed position is provided.

  When the canopy is in the closed position, which is the lowered position, the saddle is covered with the canopy, so the driver cannot sit on the saddle and drive the tricycle with a canopy. According to the present invention, since the canopy can be fixed at the closed position when the canopy-equipped tricycle is parked when not in use, the canopy-equipped tricycle can be prevented from being stolen.

  Still another structural feature of the tricycle with a canopy according to the present invention is that a damper mechanism (40) is provided between the canopy and the vehicle body.

  According to the present invention, when the canopy is raised and lowered, a large impact is prevented from being applied to the canopy. Thereby, damage to the canopy can be prevented. In addition, the operation when raising and lowering the canopy becomes smooth.

It is the side view which showed the tricycle with a canopy which concerns on one Embodiment of this invention. It is the perspective view which showed the tricycle with a canopy of the state which closed the canopy. It is the side view which showed the state which the driver | operator is driving the tricycle with a canopy. It is the perspective view which showed the assembly | attachment state of a pair of front wheel and a front wheel connection mechanism. It is the perspective view which showed the state which looked at the front-wheel connection mechanism from the front. It is the perspective view which showed the state which looked at the front-wheel connection mechanism from back. It is the perspective view which showed the state which looked at a pair of front wheel and the front-wheel connection mechanism from back. It is the perspective view which showed the connection part of a support frame and a canopy. It is the side view which showed the canopy in a closed position. FIG. 10 is an enlarged perspective view of the open position locking mechanism of FIG. 9. It is the perspective view which expanded the open position lock mechanism of the locked state. It is the side view which showed the canopy in an open position. It is the perspective view which showed the bumper provided in the connection part of a support frame and a canopy. It is explanatory drawing which showed the gravity center of canopy. It is the front view which showed the state which the tricycle with a canopy is drive | working the horizontal road surface. It is the front view which showed the state in which the tricycle with a canopy is turning. It is the front view which showed the state which the tricycle with a canopy is drive | working the inclined road surface. It is the perspective view which showed the tricycle with a canopy which concerns on a modification. It is the side view which showed the state which closed the canopy of the tricycle with a canopy which concerns on a modification. It is the front view which showed the state which attached the basket to the support frame.

(Embodiment)
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 and FIG. 2 show a tricycle 10 with a canopy according to the embodiment, and FIG. 3 shows a state where a driver D is driving the tricycle 10 with a canopy. The canopy-equipped tricycle 10 includes a vehicle body 11, front wheels FL and FR attached to the left and right of the lower portion of the front portion of the vehicle body 11, and a rear wheel R attached to the lower portion of the rear portion of the vehicle body 11. A saddle 12, a handle 13, and a canopy C are attached to the upper portion of the vehicle body 11. The vehicle body 11 is formed by connecting a head pipe 11a, a main frame 11b, a frame link 11c, a support frame 11d, and a seat tube 11e, and a pair of stays 11f are connected to the lower portion of the main frame 11b.

  The head pipe 11a is composed of a pipe located at the front part of the vehicle body 11, and is arranged so as to incline and extend vertically so that the lower part is located forward of the upper part. The main frame 11b is configured by a pipe that extends rearward from the lower end of the head pipe 11a and then bends obliquely upward. The frame link 11c is composed of a pipe that extends over a portion slightly lower than the center of the head pipe 11a and a rear portion of the horizontal portion of the main frame 11b, and is curved so that the rear is convex. ing.

  The support frame 11d is a portion to which the canopy C is attached, and is configured by a substantially U-shaped pipe (see FIG. 8). The support frame 11d has a center portion fixed to the upper rear surface of the head pipe 11a so that both end portions are positioned obliquely upward and forward. The seat tube 11e is composed of a short pipe extending upward from the upper end of the main frame 11b, and a saddle 12 is attached to the center thereof. The saddle 12 includes a connecting member 12a connected to the seat tube 11e and extending forward, and a front portion supported by the connecting member 12a and a rear portion positioned on the seat tube 11e.

  The stay 11f is composed of a pair of wide left and right frames extending rearward and obliquely downward from the rear side of the main frame 11b, and a rear wheel R is attached to the lower end thereof so as to be rotatable about the axle R1. . A handle 13 is disposed above the head pipe 11 a via a steering shaft 14. The steering shaft 14 passes through the inside of the head pipe 11a so as to be rotatable around the axis, and the handle 13 is formed of a pipe extending left and right with the upper end portion of the steering shaft 14 as a center. A grip portion 13a is provided at both left and right ends of the handle 13, and a brake lever 13b is provided in the vicinity of the grip portion 13a. When the driver D holds the grip portion 13a and rotates it back and forth, the steering shaft 14 rotates.

  Further, the lower end portion 14a (see FIG. 6) of the steering shaft 14 protrudes from the lower end opening of the head pipe 11a, and the front wheel coupling mechanism 20 is connected to the lower end portion 14a and the head pipe 11a as shown in FIG. The front wheels FL and FR are attached to the vehicle. As shown in FIGS. 4 to 7, the front wheel coupling mechanism 20 includes swing arms 21 and 22 disposed above and below and a pair of side links 23 disposed on the left and right of the swing arms 21 and 22. , FR that alternately move up and down alternately, and a pair of front wheel support portions 25 arranged on the left and right of the parallel link mechanism 20a. Further, the front wheel coupling mechanism 20 is provided with a steering link mechanism 20b that rotates the front wheels FL and FR left and right by the rotation of the steering shaft 14.

  The swing arm 21 includes a plate-like curved portion 21a extending left and right and having a convex bottom surface, a bearing portion 21b projecting upward from a central portion of the curved portion 21a, a left and right portion of the curved portion 21a, and a bearing portion 21b. It consists of a pair of rod-shaped reinforcement part 21c which connected the upper part of each. A shaft hole penetrating in the front-rear direction is formed in the upper portion of the bearing portion 21b, and a connecting portion 21d having a U-shape in plan view is formed on the left and right ends of the curved portion 21a, respectively, with the open end facing the left and right outer sides. Is formed. A shaft hole penetrating in the front-rear direction is formed in both front and rear side portions of each connecting portion 21d. The peristaltic arm 22 has a symmetrical shape with the peristaltic arm 21, and includes a curved portion 22a in which connecting portions 22d each having a shaft hole are formed at both left and right ends, a bearing portion 22b having a shaft hole, and a pair. The rod-shaped reinforcing portion 22c.

  A pair of side link 23 is comprised with the same member, and is formed in the short rod shape which extends up and down together. Holes penetrating in the front-rear direction are formed at the upper and lower ends of each side link 23, and a support shaft 23a is inserted through each hole. One side link 23 passes the upper support shaft 23a through the pair of shaft holes in the left connecting portion 21d of the swing arm 21, and the lower support shaft 23a through the pair of shaft holes in the left connection portion 21d of the swing arm 22. Is rotatably assembled to the peristaltic arms 21 and 22. The other side link 23 passes the upper support shaft 23a through the pair of shaft holes of the right connection portion 21d of the swing arm 21, and the lower support shaft 23a passes the pair of shaft holes of the right connection portion 21d of the swing arm 22. Is rotatably assembled to the peristaltic arms 21 and 22. The pair of side links 23 constitutes a pair of vertical axes according to the present invention, and the swing arms 21 and 22 constitute a pair of left and right axes according to the present invention.

  The parallel link mechanism 20 a configured as described above is fixed to the head pipe 11 a via the fixing member 24. The fixing member 24 includes a fixing piece 24a fixed to the head pipe 11a, a vertically long plate-like piece 24b, and a pair of support shafts 24c. The fixing piece 24a is composed of a plate-like portion that extends vertically along the head pipe 11a and two U-shaped fixing portions that are provided above and below the rear surface and are fixed to the head pipe 11a. A screw part (not shown) having a screw hole in the part is provided. The plate-like piece 24b is stretched over the front surfaces of the bearing portions 21b and 22b, and holes are formed above and below the shaft portions of the bearing portions 21b and 22b.

  The pair of support shafts 24c is composed of a bolt having a screw formed at the rear end and a head formed at the front end. The screw at the rear end is screwed into the screw portion of the fixed piece 24a, and the head is formed into the plate-like piece 24b. Is engaged with the peripheral edge of the hole. The swing arm 21 can be moved up and down around the support shaft 24c by inserting the support shaft 24c positioned above the shaft hole of the bearing portion 21b, and the swing arm 22 has a shaft hole in the bearing portion 22b. The support shaft 24c located below is inserted through the support shaft 24c so that it can swing up and down around the support shaft 24c. Therefore, when one of the pair of side links 23 is kept in a parallel state, when the other is raised, the other is lowered. At that time, the left and right ends of the peristaltic arms 21 and 22 are connected to the connected side links 23. Move up and down together.

  Front wheel support portions 25 are respectively attached to the central portions of the outer portions of the pair of left and right side links 23. Each front wheel support portion 25 includes a cylindrical rotating portion 25a that is rotatably assembled to the center portion of the side link 23 in the axial direction, a cylindrical bearing portion 25b that extends outward from the rotating portion 25a, and a rotating portion. It is composed of two connecting pieces 25c and 25d extending respectively upward and downward from the rear 25a. A bearing is provided inside the bearing portion 25b, and the axle FL1 of the front wheel FL is rotatably assembled to the bearing portion 25b of the left front wheel support portion 25 via the bearing, and the bearing of the right front wheel support portion 25 is supported. An axle FR1 of the front wheel FR is rotatably mounted on the portion 25b via a bearing.

  The steering link mechanism 20 b includes a horizontal rotating plate 26 fixed to the lower end portion 14 a of the steering shaft 14 and a pair of tie rods 27 connected to the connecting pieces 25 c of the front wheel support portions 25. The horizontal rotating plate 26 is configured by a plate member extending rearward from the lower end portion 14a of the steering shaft 14, and a pair of thin and short shaft portions 26a extending upward are formed on the left and right sides of the rear portion of the upper surface. The tie rod 27 is formed of a long and narrow bar in which a bearing portion 27a having an insertion hole penetrating vertically at both ends is formed, and is spanned between the horizontal rotating plate 26 and the pair of connecting pieces 25c.

  A thin and short shaft portion 25e extending upward is formed at the rear of the pair of connecting pieces 25c. Then, one tie rod 27 is inserted in the two bearing portions 27a so that the shaft portion 25e and the shaft portion 26a located on the left side are rotatable, and the other tie rod 27 is located on the right side of the two bearing portions 27a. The shaft portion 25e and the shaft portion 26a are inserted in a rotatable state. Therefore, when the steering shaft 14 rotates, the front wheels FL and FR also rotate left and right through the horizontal rotating plate 26, the pair of tie rods 27, and the pair of front wheel support portions 25. The connecting pieces 25d are connected to the corresponding FL and FR cover members to reinforce the tie rods 27.

  A bracket 15 is fixed below the lower portion of the inclined portion of the main frame 11b, and the pedal shaft 16 is rotatably attached through the bracket 15. A pedal 16b is attached to the pedal shaft 16 via a crank 16a, and a drive sprocket 17 is attached. Further, a driven sprocket 17a is provided on the axle R1 of the rear wheel R, and a chain 17b is spanned between the driving sprocket 17 and the driven sprocket 17a. For this reason, when the pedal 16b is rotated, the rear wheel R rotates.

  Further, the bracket 15 is provided with an assist unit 18 so as to cover the central portion of the pedal shaft 16. The assist unit 18 includes a motor, a controller, a torque sensor, a speed sensor, and the like. Further, a battery 18a is attached to the front of the assist unit 18 via a bracket 15a fixed to a portion from the horizontal portion to the inclined portion of the main frame 11b. The torque sensor detects the torque generated in the pedal shaft 16 and outputs the detected value to the controller. Then, the controller calculates the auxiliary driving force based on the detected value of the torque sensor, and controls so that a current corresponding to the auxiliary driving force is supplied from the battery 18a to the motor. The motor applies a rotational force to the drive sprocket 17.

  The canopy C is configured by attaching a frame portion to the outer periphery of a curved plate made of transparent carbon, polycarbonate, polypropylene, etc., and attaching a UV cut film to the inner surface (lower surface), and the front lower portion is a support frame 11d. It is assembled at both ends. As shown in FIG. 3, the canopy C is formed in a shape that covers the driver D who drives the three-wheeled vehicle 10 with a canopy from above. And then extends backward. Further, as shown in FIG. 2, the canopy C is formed in a smooth curved surface with the center in the left-right direction protruding upward from both sides, and the shape seen from above (see FIG. 14) It is formed in a substantially oval shape whose width is wider at the rear than at the front.

  As shown in FIG. 8, the canopy C is assembled to the support frame 11d by the connecting portion 30, and its weight is about 5 kg. The connecting portion 30 includes a fixing member 31, a support shaft 34, a closed position lock mechanism 35, and an open position lock mechanism 37 that are fixed to the center portion in the left-right direction below the inner surface of the canopy C. The fixing member 31 is formed in a substantially plate shape arranged along the inner surface of the canopy C, and four fixing pieces 31a are provided at intervals on the left and right and top and bottom thereof. An attachment piece 32 constituting a part of the closed position locking mechanism 35 protrudes forward from the left edge portion of the fixing member 31, and one of the open position locking mechanism 37 protrudes from the right edge portion of the fixing member 31. A mounting piece 33 constituting the portion projects forward so as to face the mounting piece 32. And the four fixed pieces 31a are being fixed to the canopy C by the fixing tool 31b which consists of a screw and a nut, respectively.

  A shaft insertion hole 32 a penetrating left and right is formed in the lower part of the attachment piece 32, and a locking hole 32 b penetrating left and right is formed in the upper part of the attachment piece 32. The attachment piece 33 has a bent shape in which a portion facing the attachment piece 32 and a portion extending to the right side are alternately repeated, and two portions facing the attachment piece 32 and two portions extending to the right side are formed. Has been. A shaft hole 33a that penetrates from side to side and is open at the top is formed opposite to the shaft insertion hole 32a at the upper end of a portion of the mounting piece 33 close to the fixing member 31, and left and right are opened to the rear surface of the mounting piece 33. A U-shaped bar-shaped hook 33b is attached. The support shaft 34 is inserted into the shaft insertion hole 32a and the shaft hole 33a in a rotatable state.

  The closed position locking mechanism 35 includes a connecting member 35a fixed to the left end portion of the support frame 11d, a lock portion 36 attached to the connecting member 35a, and an attachment piece 32. The connecting member 35a is formed of a bent plate including a vertical portion (not shown) positioned in the front and a horizontal portion positioned in the rear, and the vertical portion is fixed to the left end portion of the support shaft 34, and the upper surface of the horizontal portion. The lock part 36 is attached to. The lock portion 36 includes a lock portion main body 36a having a circular hole on the right side and a cross-shaped hole on the rear side, a columnar engagement portion 36b attached to the circular hole so as to be able to advance and retreat, and a front portion. The operation portion 36c is inserted into the cross-shaped hole, and the engagement portion 36b is retracted into the lock portion main body 36a or protrudes from the lock portion main body 36a by the operation of the operation portion 36c. ing.

  When the canopy C is rotated downward about the support shaft 34 with the engaging portion 36b retracted, the locking hole 32b of the mounting piece 32 moves to the position of the engaging portion 36b. For this reason, when the operation part 36c is rotated in the clockwise direction in the state of FIG. 8, the engaging part 36b and the locking hole 32b are engaged, and the canopy C is fixed at that position (see FIG. 2). Further, from this state, the canopy C can be rotated upward by rotating the operating portion 36c counterclockwise to disengage the engaging portion 36b from the locking hole 32b. The operation portion 36c is detachable from the cross-shaped hole, and is removed from the cross-shaped hole at times other than during operation.

  The open position locking mechanism 37 includes a connecting member 37a fixed to the right end portion of the support frame 11d, a lock portion 38 attached to the connecting member 37a, and a rod-like hook 33b provided on the attachment piece 33. The connecting member 37a is formed of a bent plate including a vertical portion extending in the front-rear direction and a vertical portion extending from the rear end to the right side, the upper end of the front portion is fixed to the right end portion of the support shaft 34, and the vertical portion in the rear portion is supported. It is fixed to the frame 11d. The lock portion 38 includes a lock portion main body 39 fixed to a portion extending in the front-rear direction of the connecting member 37a, an engagement portion 38a (see FIGS. 11 and 12), a release lever 38b, and a spring 38c (see FIGS. 11 and 12). See).

  The lock portion main body 39 is composed of a pair of support members 39a and 39b each composed of a vertical portion fixed to both the left and right sides of the connecting member 37a and a horizontal portion extending to the right side with a vertical distance from the lower end of both vertical portions. An elongated notch 39c extending rearward from the front edge toward the center is formed at the front of both horizontal portions. Further, in the vicinity of the rear end of the notch portion 39c in both horizontal portions, holes are formed vertically opposite to each other with the notch portion 39c interposed therebetween, and support shafts 39d and 39e are fixed in parallel to these holes. .

  The engaging portion 38a is composed of a plate-like member that is long at the front and rear and is disposed between the support members 39a and 39b so as to be rotatable about the support shaft 39d. And a small engaging recess is formed on the right side of the rear part. In addition, an inclined portion that protrudes forward from the left end toward the right side is formed at the front edge of the engaging portion 38a. The release lever 38b is configured by a substantially L-shaped plate member that is bent so as to cover the rear side from the left side of the engaging portion 38a, and the front portion is supported in a state where it can rotate on the support shaft 39e. It is arranged between 39a and 39b. The rear part of the release lever 38b is constituted by a grip part protruding from between the support members 39a, 39b, and an engaging convex part having a concave part on the left side is formed at the boundary part between the front part and the grip part.

  The spring 38c is formed of a coil spring, and engagement portions curved in a C shape are formed at both ends thereof. The spring 38c is disposed between the engaging portion 38a and the releasing lever 38b by engaging both engaging portions with a small engaging concave portion at the rear of the engaging portion 38a and an engaging convex portion of the releasing lever 38b. The distance between the engaging portion 38a and the release lever 38b is maintained to be a predetermined interval. The front part of the engaging part 38a is located in front of the notch part 39c of the support members 39a and 39b. However, when the release lever 38b is operated in the left direction, it moves to the right side from the notch part 39c. Come away.

  When the closed position lock mechanism 35 is set to the locked state and the canopy C is set to the state shown in FIG. 9, the open position lock mechanism 37 is unlocked. In this case, as shown in FIG. 10, the rod-like hook 33 b of the attachment piece 33 is located in front of the lock portion 38. From this state, when the rear part of the canopy C is lifted upward, the bar-shaped hook 33b approaches the notch part 39c and comes into contact with the front part of the engaging part 38a. When the canopy C is further raised, the bar-shaped hook 33b presses the inclined portion of the engaging portion 38a, moves the front portion of the engaging portion 38a to the right side, and enters the notch 39c. When the rear portion of the rod-shaped hook 33b passes the front end portion of the engagement portion 38a, the engagement portion 38a is urged to return to the original position by the restoring force of the spring 38c, and is engaged with the rear portion of the rod-shaped hook 33b. The engagement concave portion at the front portion of the portion 38a is engaged, and the state shown in FIG. 12 is obtained. At this time, the front portion of the canopy C is in an upright state.

  Although omitted in FIG. 8, the damper mechanism 40 shown in FIG. 13 is provided between the connecting member 37 a and the fixing member 31. Note that FIG. 13 shows each member around the damper mechanism 40 such as the connecting member 37a and the fixing member 31 in a simplified manner, and the shape is different from each member shown in FIG. The damper mechanism 40 is configured by assembling four cylindrical gear dampers, and is disposed between the connecting member 37a and the support piece 41 provided on the fixing member 31, and the support shaft 34 passes through the inside. doing. Further, a through hole 41a is formed in the support piece 41, and the support shaft 34 extends to the left side through the through hole 41a.

  Each gear damper constituting the damper mechanism 40 includes a vane and oil, and the vane rotates and compresses the oil by rotating the fixing member 31 with respect to the connecting member 37a. A braking force is generated by the compression of the oil. Since the damper mechanism 40 is provided, when the canopy C is moved up and down, a strong impact is prevented from being applied to the connecting portion 30. As a result, the connecting portion 30 can be prevented from being damaged, and the operation of raising and lowering the canopy C is smoothed.

  Further, as shown in FIG. 8, the display unit 42 and the operation unit 43 are installed side by side on the upper side of the fixing member 31. The display unit 42 displays the remaining amount of the battery 18a, the travel distance, the speed, and the like, and the operation unit 43 performs operations such as turning on / off the display unit 42 and selecting a display screen.

  FIG. 14 shows a state where the canopy-equipped tricycle 10 is viewed from above when the canopy C is in the raised open position. In FIG. 14, the symbol a indicates the center of the front wheel FL (axle FL1), the symbol b indicates the center of the front wheel FR (axle FR1), and the symbol c indicates the center of the rear wheel R (axle R1). Indicates the center of gravity of the canopy C. The center of gravity d coincides with the center of the triangle formed when the centers a, b, and c are connected by a line, and the center of the triangle is the center e of the line l1 connecting the center a and the center c. It was determined as an intersection of a line l2 connecting the center b and a line l4 connecting the center f of the line l3 connecting the center b and the center c and the center a.

  Further, the center of gravity d of the canopy C is located behind the upper end of the steering shaft 14 and ahead of the point where the extension line in the direction in which the steering shaft 14 extends and the canopy C intersect. According to this, when the tricycle 10 with canopy is caused to travel, the balance of the tricycle 10 with canopy can be prevented from being lost due to the weight of the canopy C. Further, since the assist unit 18 and the battery 18a are also arranged in the center portion in the left-right direction of the tricycle 10 with a canopy between the centers a, b and the center c, by installing the assist unit 18 and the battery 18a, It is also possible to prevent the balance of the canopy tricycle 10 from being lost.

  Further, the front end portion of the canopy C is located in front of the line 15 connecting the centers a and b, and the rear end portion is located behind the center c. The width of the canopy C is such that the length on the front side is a little shorter than the length between the centers a and b, and the length on the rear side is a little longer than the length between the centers a and b. For this reason, the canopy C can sufficiently cover the portion other than the front wheels FL and FR and the rear wheel R of the tricycle 10 with a canopy and the driver D from above.

  In this configuration, when the canopy-equipped tricycle 10 is run, the driver D holds the grip portion 13a of the handle 13 and sits on the saddle 12, and rotates the pedal 16b with his / her foot. Thus, the pedaling force and the rotational force by the motor of the assist unit 18 are applied to the drive sprocket 17, and the three-wheeled vehicle 10 with the canopy travels. In this case, if the traveling road surface is a horizontal plane, the canopy-equipped tricycle 10 travels with the pair of side links 23 of the parallel link mechanism 20a being vertical, as shown in FIG.

  Further, if the traveling road surface is a curve, the driver D causes the tricycle 10 with a canopy to incline and travel on the inside of the curve. In this case, as shown in FIG. 16, the canopy-equipped tricycle 10 travels in a state where the pair of side links 23 of the parallel link mechanism 20a are inclined so that the upper end portion is located inside the curve from the lower end portion. . At this time, the front wheels FL and FR and the rear wheel R are inclined at the same angle as the vehicle body of the canopy tricycle 10 and the pair of side links 23 in a state of being in contact with the road surface. Thus, the canopy-equipped tricycle 10 can travel on a curved road surface in a stable state.

  In this case, if the inclination angle of the canopy tricycle 10 is within 15 degrees, the center of gravity d of the canopy C is formed when the centers a, b, and c shown in FIG. Located inside the triangle. The handle 13 is steered according to the angle of the curve, and the front wheels FL and FR rotate left and right according to the steer angle of the handle 13. In addition, if the traveling road surface is an inclined road surface that is inclined to the left and right in the traveling direction, the tricycle 10 with a canopy inclines the swing arms 21 and 22 of the parallel link mechanism 20a according to the inclination of the road surface, as shown in FIG. Drive in the state where At this time, the pair of side links 23 are in an upright state while being kept parallel to each other. In this case, even if the traveling road surface is an inclined road surface, the three-wheeled vehicle 10 with the canopy can maintain an upright posture, and thus can travel stably.

  As described above, since the canopy-equipped tricycle 10 according to the present embodiment includes the canopy C, the canopy C can be used even during rainfall, during strong winds, and during sunshine. In the present embodiment, the center of gravity d of the canopy C in plan view coincides with the center of the triangle formed when the center a of the front wheel FL, the center b of the front wheel FR, and the center c of the rear wheel R are connected by a line. Like to do. For this reason, the weight of the canopy C is balanced and the front wheel FL, FR and the rear wheel R are applied, and the canopy-equipped tricycle 10 can travel stably.

  Further, the front wheels FL and FR of the canopy-equipped tricycle 10 are connected by a front wheel connecting mechanism 20 including a parallel link mechanism 20a and a steering link mechanism 20b. For this reason, the front wheels FL and FR can move up and down according to the shape of the road surface and the running state, and the front wheels FL and FR and the rear wheel R are always in contact with the road surface. As a result, traveling during straight traveling becomes stable, and operability does not deteriorate even when the road surface is inclined. Furthermore, the traveling performance does not deteriorate even when the canopy-equipped tricycle 10 turns.

  Further, in the tricycle with canopy 10 according to the present embodiment, the assist unit 18 and the battery 18a are installed between the front wheels FL, FR and the rear wheel R in the front-rear direction. It is possible to prevent the balance of the canopy-equipped tricycle 10 from being deteriorated. Further, the canopy C is rotatable up and down, and an open position lock mechanism 37 that holds the canopy C in the upper open position and a closed position lock mechanism 35 that holds the canopy C in the lower closed position are provided. It has been. For this reason, when using the three-wheeled vehicle 10 with the canopy, the canopy C can be fixed at the open position, and when the three-wheeled vehicle 10 with the canopy is not used, the canopy C can be fixed at the closed position.

  According to this, when the tricycle 10 with a canopy is running, the canopy C can be prevented from descending or shaking due to impact or vibration. When the tricycle 10 with a canopy is not used, the vehicle body 11 and the saddle 12 can be prevented from getting wet and theft can be prevented. Furthermore, since the damper mechanism 40 is provided between the fixing member 31 of the canopy C and the mounting piece 33 on the vehicle body 11 side, it is possible to prevent a large impact from being applied to the canopy C when the canopy C is moved up and down. The

(Modification)
Next, a modified example of the above-described tricycle 10 with a canopy will be described. 18 and 19 show a canopy-equipped tricycle 50 according to the modification. In this tricycle with canopy 50, the vehicle body 51 is a monocoque frame made of carbon that is integrally assembled in place of the head pipe 11a, main frame 11b, frame link 11c, support frame 11d, and seat tube 11e of the tricycle with canopy 10. It is configured. A basket 52 is installed on the support frame 51 a of the vehicle body 51. The rest of the configuration of the tricycle 50 with canopy is the same as that of the tricycle 10 with canopy.

  As shown in FIG. 20, the basket 52 is composed of a storage member that can be opened and closed with a wire fastener, and a lower portion is projected below the support frame 51a in a bifurcated portion of the support frame 51a. It is attached in a state. The lower portion of the basket 52 is detachably fixed to both side portions of the support frame 51a with a pair of fixed bands 52a, and the upper portion is detachably fixed to the support shaft 34 with a pair of fixed bands 52b. The basket 52 can accommodate small items carried by the driver D.

  Further, the front end portion of the canopy C projects forward from the front end of the support frame 51a, and the basket 52 is attached to the support frame 51a in the vicinity of the inner surface of the canopy C. For this reason, the basket 52 is covered with the canopy C and protected from rain, sunlight, etc., regardless of whether or not the canopy-equipped tricycle 50 is used. Further, the basket 52 does not hinder the canopy C from rotating. The other effects of the tricycle with canopy 50 are the same as those of the tricycle with canopy 10 of the above-described embodiment.

  The tricycle with a canopy according to the present invention is not limited to the above-described embodiments and modifications, and can be implemented with appropriate modifications. For example, in the above-described embodiment, the tricycles 10 and 50 with a canopy are tricycles with an assist unit, but the tricycle with a canopy may be a tricycle with a canopy without an assist unit, It may be an auto tricycle with a canopy.

  Further, in the above-described embodiment, a mechanism for allowing the line 15 connecting the center portions of the front wheels FL and FR to be inclined up and down with respect to the axle R1 of the rear wheel R is combined with the swing arms 21 and 22 and a pair. However, instead of this, another mechanism may be used. For example, without directly connecting the swing arms 21 and 22 and the pair of side links 23, another connecting member is rotatably assembled between them so that the front wheels FL and FR can move up and down independently. You can also. Furthermore, in the above-described embodiment, the parallel link mechanism 20a is attached to the head pipe 11a. However, the parallel link mechanism 20a may be attached to the steering shaft 14 so that it can rotate together with the steering shaft 14. Further, the configuration of the other parts of the canopy-equipped tricycle according to the present invention can be appropriately changed and implemented within the technical scope of the present invention.

  DESCRIPTION OF SYMBOLS 10,50 ... Tricycle with canopy 11,51 ... Car body, 12 ... Saddle, 14 ... Steering shaft, 18 ... Assist unit, 20 ... Front wheel coupling mechanism, 20a ... Parallel link mechanism, 21, 22 ... Peristaltic arm, 23 ... Side link, 30 ... connecting portion, 32b ... locking hole, 33b ... rod-shaped hook portion, 34 ... support shaft, 35 ... closed position locking mechanism, 36 ... locking portion, 36b ... engaging portion, 37 ... opening position locking mechanism, 38: Lock part, 40: Damper mechanism, C: Canopy, a, b, c ... Center, d ... Center of gravity, FL, FR ... Front wheel, R ... Rear wheel, FL1, FR1, R1 ... Axle.

Claims (12)

The car body,
A pair of front wheels installed on the left and right of the front part of the vehicle body;
A rear wheel installed at the center of the left and right of the rear of the vehicle body;
A connecting mechanism that spans the pair of front wheels so that a line connecting the center portions of the pair of front wheels can tilt at least in the vertical direction with respect to the axle of the rear wheel;
A saddle installed at the top of the vehicle body;
A canopy attached above the vehicle body in a state where a front end side portion is supported at a front part of the saddle in the vehicle body;
A tricycle with a canopy characterized in that the center of gravity of the canopy in a plan view is located inside a triangle connecting the center of each of the pair of front wheels and the center of the rear wheel.   2. The tricycle with canopy according to claim 1, wherein a center of gravity of the canopy in a plan view is located in front of a center between a center portion of the pair of front wheels and a center portion of the rear wheel in a front-rear direction.   The tricycle with a canopy according to claim 1 or 2, wherein the center of gravity of the canopy in a plan view substantially coincides with the center of a triangle connecting the center of each of the pair of front wheels and the center of the rear wheel. .   The vehicle body includes a steering shaft extending obliquely upward and rearward from an intermediate portion of the pair of front wheels, and a center of gravity of the canopy in plan view is lower than the canopy on an extension line in a direction in which the steering shaft extends. The tricycle with a canopy according to any one of claims 1 to 3, which is located in   The tricycle with a canopy according to any one of claims 1 to 4, wherein at least a part of the canopy is located in front of a center portion of the pair of front wheels.   The tricycle with a canopy according to any one of claims 1 to 5, wherein the coupling mechanism includes a pair of upper and lower shafts respectively connected to the axles of the pair of front wheels and provided with rotation fulcrums on the upper and lower sides. .   A pair of upper and lower shafts respectively connected to the axles of the pair of front wheels, and an upper portion and a lower portion of the pair of upper and lower shafts are spanned across the connection mechanism, and the respective connecting portions are rotatable with respect to each other. The tricycle with a canopy according to any one of claims 1 to 6, comprising a pair of left and right shafts.   The assist unit including a motor that rotationally drives the rear wheel and a controller that controls a driving force of the motor is disposed between the pair of front wheels and the rear wheel in a front-rear direction. A tricycle with a canopy according to any one of the above.   The canopy and the vehicle main body are connected by a connecting portion having a shaft portion, and the canopy is located at an open position that is away from the saddle around the shaft portion and a position that covers the saddle in the vicinity. The tricycle with a canopy according to any one of claims 1 to 8, wherein the tricycle is rotatable between a closed position.   When the canopy is provided in the canopy, and when the canopy is provided in the vehicle body and the canopy is in the open position, the canopy is engaged with the open position side engaging portion to hold the canopy in the open position. The tricycle with a canopy according to claim 9, further comprising an open position lock mechanism including an open position side engaged portion.   A closed position side engaging portion provided in the canopy and when the canopy provided in the vehicle body is in the closed position, the closed position side engaging portion is engaged to hold the canopy in the closed position. The tricycle with a canopy according to claim 9 or 10, further comprising a closed position lock mechanism including a closed position side engaged portion.   The tricycle with a canopy according to any one of claims 1 to 11, wherein a damper mechanism is provided between the canopy and the vehicle body.