JPS5948282A - Parking device for tricycle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a parking device for a tricycle having one front wheel and two rear wheels, in which the front body is connected to the rear body so as to be swingable.

More specifically, in the tricycle, the parking brake mechanism and the locking mechanism of the swinging mechanism of the front vehicle body can be operated simultaneously with one operation, and the braking and swinging lock operations during parking can be easily performed. Regarding a parking device for a tricycle.

Tricycles with one front wheel and two rear wheels equipped with a motor are already known, and small versions of these are available, but the applicant has further simplified and downsized the conventional small tricycle, and has developed a tricycle that is simple and compact. To provide a tricycle capable of providing driving operability, handling properties, running performance, and running feeling equivalent to those of a tricycle.

In such tricycles, including conventional small tricycles, the front body is connected to the rear body of the two rear wheels in a swinging manner to prevent the body from overturning, etc., so that the front body does not move when steering or changing direction. It is configured to swing.

By the way, when parking such a tricycle, unlike parking in an inclined position on a stand like a two-wheeled vehicle, a parking brake is required like a four-wheeled vehicle, and the front body can swing freely relative to the rear body, so it is difficult to park in a tore. A locking mechanism is required to protect the mechanism and prevent it from swinging.

Therefore, it has been considered to provide a parking brake device and a swing lock mechanism separately, but in this case, each operation would be required separately, resulting in double work! It's easy to forget to do one operation on the samurai. Furthermore, even if you operate both to lock the wheels and lock mechanisms, there is a risk of forgetting to release one when you release them, and the release work is duplicated, making it troublesome and complicated, especially when using a swing lock. If you forget to release the mechanism while driving, it is easy to cause a situation where the front body of the vehicle does not swing when turning or the like.

The present inventors have devised the present invention in view of these problems with tricycles and to solve them.

The object of the present invention is to provide the above-mentioned front body rocking tricycle,
A parking brake mechanism that locks the wheels when parked;
It is equipped with a locking mechanism that locks the front vehicle body in a rocking manner -F-4rl: with respect to the rear vehicle body, so that the above operations can be performed simultaneously with the operation of one operator, simplifying both operations and making it possible to perform individual operations. To provide a tricycle printing device which prevents forgetting to release or forgetting to perform a release operation and improves operability and safety.

Another object of the present invention is to provide a tricycle in which the above-mentioned operation element is provided near the steering handle, so that the installation space can be used effectively, the operation element does not become an obstacle to driving, etc., and it is installed in a place where it is easy to operate. 3. Next, a preferred embodiment of the present invention will be described in detail with reference to accompanying drawings. This will reveal further objects and advantages of the invention.

1 and 2 are a side view and a plan view schematically showing a tricycle, which consists of a tricycle 1d, a front body 2, and a rear body 3. A herad tube 5 is provided at the front end of the frame 4 of the front body 2,
A front fork 6 is installed longitudinally through the head tube 5, supports a single steering front wheel 7 at the lower end of the front fork 6, and a handle 8 is attached to the upper end of the front fork 6.

The frame is formed by four pipes, the front part 4a of which is inclined diagonally downward and rearward from the rear lower part of the head tube 5, the middle part 4b extends rearward at a low position, and the rear part 4C stands up in three directions. to form the seat post 9, and the seat post 9'
At one end, seats 7-1 and 10 are removed.

A hand 20 is provided below the seat 10, and its rotating and swinging shaft 21 extends forward, and the front end of the lll1l121 is tied to the rear of the horizontal portion 4b of the frame 4 of the front vehicle body 2. . In the case 22 of the joint 20, there is a
One end of 3 is connected, and the rear lti, l of the two wheels is connected.
A rear fork 25 supporting the rear fork 24, 24 is pivotally mounted on the pin noro as a fulcrum, and a drive unit 27 is mounted on the rear fork 25. K iJ, a rear cushion unit 28 is provided, and in the illustrated example, the power of the drive unit 27 is transmitted to the rear wheels 24.2 by a belt/pulley.
It is transmitted to 4. Thus, the front vehicle body 2 is swingable relative to the rear vehicle body 3.

In the second tricycle 1, an operating lever 32 is swingably pivoted to a bracket 30 provided at the rear upper part of the head tube 5 via a pin 31, and is perpendicular to the head tube 5 as shown in FIG. Turn off the state and hold it upward in the figure -nige@'i itt'+! The state shown in is the parking brake activated and rocking lock state. One end 11 is connected to the lever 32, and the other end of the cable 34 is connected to the other end, and the cable 34 passes through the frame 4 of the front vehicle body 2 and reaches the joint 20.

14 to 6 are enlarged views of the joint portion showing the swing lock mechanism, and FIG. 7 is an enlarged view of the axle portion showing the parking brake mechanism.

A bracket 36 is installed on the case 22 of the joint 20,
A caliper 38 pivots to open and close using a pin 37 as a fulcrum.
．． 39, and its lower end 38a.

39a to each opposite end of the parking brake cable 34.35, and one inner 34 of the cable 34.35.
a moves freely with the outer 34b of the one 34 and integrally with the outer 35b of the other 35. This carrier fly end 3
A return spring 40 is interposed around the cable inner 34a between 8a and 39a, and presses the caliper 38, 39 in the direction of opening. A protrusion 38b is formed at the upper end of one caliper 38 above the pin 37.
The upper end 39b of the other caliper 39 is provided with a cushion 39c as a flat support.

As shown in FIG. 6, a lock plate 41 is fixed to the rear lower part of the front vehicle body 2, as shown in FIG.
The portion 41b in which the tooth portion 411 is formed is attached to the caliper 38.
．． 39 each upper end portion 38b.

39b is arranged so that it does not come into contact with this in normal times, but faces away from it.

On the other hand, the inner 34a that is integral with the parking brake cable 35 passes through the parking brake cable 35 described above and is led rearward to the rear wheel 2.
Flange portion 42 of pulley 42 that drives one side 24a of 4
The cable outer 35b is locked to one of the calipers 43a and 43b of a desk brake type parking brake device 43 provided adjacent to the caliper 43a.

Pads 43c, 43c provided at each tip of 43b face the flange portion 42a.

The other cable 34 described above extends through the pipe space in the front vehicle body 2 to a point in front of the head tube 5, and connects an inner end 34a to a lever 33 of an operating lever 32 pivotally mounted on the head tube 5.

In the above process, the operation lever 32 is swung so as to be lifted to one side, and the cable inner 34a is pulled from this, and the caliper 38, 39 is swung in the direction of closing, and the teeth 41a of the lock plate 41 are connected to one protrusion 38b. It is held by the other end 39b via the cushion material 39c and locked by a lock plate and a caliper, thereby locking the front vehicle body 2 against the rear vehicle body 3 so that it cannot swing. In addition, the caliper 43 is actuated in the pinching direction using the cable (71), and the brake bands 43C, 43C are pressed against the flange portion 42a of the pulley, and the bark brake is actuated.

In this way, the parking brake can be actuated by operating the lever 32 provided near the handle 8, and at the same time, the rocking of the front and rear vehicle bodies can be locked by the operation, and both mechanisms can be locked by the -time operation. Therefore, there is no need to separately operate the parking brake and swing lock.
- You can lock both at the same time with a few simple operations.

By the way, if you want to move the tricycle a little in a garage or the like with the swing lock or parking brake locked, do the following.

That is, as shown in FIG. 7, the shaft 44 output by the pulley 42
The car 1t (145 is loosely connected to the case 46 of the shaft 44)
A flange portion 44a forming a half of the dog clutch is provided at the end of the portion facing inward, and a recess portion 44b is formed in the end face of the flange portion 44a. On the other hand, a shifter 47 is provided around the axle 45 to shift a protrusion 47b that engages with the recess 44b.
They are engaged with each other by a spline portion 47aVr around the 45th circumference, are integrally rotated in the direction of rotation, are slidable in the axial direction, and are biased by a spring 48 in the engagement direction. Therefore, under normal conditions, the shifter 47 and the output shaft 44 are engaged by a dog clutch as shown in FIG. 7, and the output of the output shaft 44 is transmitted to the axle 45.

A groove 47c is formed on the outer periphery of the shifter 47.
C is engaged with a C-shaped shift arm 49 as shown in FIG.
= Knee)・Lar lever shaft 50 is connected to one end, and the middle part of the shaft 50 is connected to the boss part 46 of the case 46.
The case boss portion 46 protrudes outward through a and is rotatable.
a, and a neutral lever 51 is fixed to the protruding end of the shaft 50.
The tip of is the inner 9 of the neutral operation cable 52:!
1i.

On the other hand, as shown in FIG. 3, a carrier handle 53 is provided at the rear of the seat 10, under which the inner 52a of the operating cable 52 faces naked, parallel to this. The end d of the inner 52a is connected to a part of the nozzle 53, and the end of the outer 52b is fixed to a part of the nozzle 53, and extends through the seat post to the lever 51.
A grip 54 is provided in the middle part of the inner 52a facing the handle 53.
It is constructed so that it can be easily kept.

In the above, under normal conditions, the shifter 47 is pushed by the action of the spring 48, the clutch is engaged, and in this state the shift arm 49 is pushed in that direction, and the shaft 50 and lever 5
1, the cable inner 52a is tensioned and its end is parallel to the horizontal part of the knot 53 (see FIG. 3). ”-2, when moving with the vehicle body rocking locked and the parking brake activated, the knob 53
Grip the grip 54 under the grip 54 along with the horizontal portion of the grip 53, and hold the grip 54 as shown by the chain line in FIG. As a result, the cable inner 52a is pulled and the lever 51 is rotated, whereby the shift arm 49 is moved to the shaft 5.
Shifter 47 swings through 0 and resists spring 48.
The output shaft 44 and the axle 45 are moved on the axle 45 in the dissociation direction, thereby insulating the output shaft 44 and the axle 45. Therefore, the rear wheel 24 becomes free and can be easily moved even in the parking lock state.

By releasing the grip 54 after the movement, the restraining force on the shifter 47 disappears, an engaging movement is performed, the shifter 47 is locked, and the operating state of the parking brake is restored.

In addition, since the neutral operation operation part is provided on the rear handle, it is easy to move the vehicle by holding the handle and perform neutral operation at the same time, which improves handling. It is extremely convenient in this respect.

9 to 14 show modified embodiments of the present invention.

The tricycle 101 consists of a front body 102 and a rear body 103. The front body 102 has a low-floor structure, with a front fender section 160 at the very front, a front section 161 that slopes diagonally rearward and downward from the rear of the fender section 160, and a front section 161 that extends flat rearward at a low position from the rear end of the front section. The floor part 162 is provided. The floor portion 162 has a width necessary and sufficient to allow the feet to be placed on the left and right sides.

A front fork 10 is mounted on the front part 161 of the front vehicle body 102.
No. 6 support posts 105 are erected, and a front fork 106 is installed longitudinally thereon, and the downwardly extending portion of these 106 supports one front steering wheel 107.

and the boss of the fork 106) 105 extending upwardly.
A bar handle 108 is provided at one end, and a case 163 that stores and supports the headlight and instruments is provided in this part.
is provided. In addition, a sea I post 109 formed of a hollow cylinder material or the like is installed in the rear intermediate part of the front vehicle body 102, and a seat 110 is installed at the upper end of this post 109.
is installed.

A joint 120 is provided on the rear lower surface of the front vehicle body 102, and a rotational swing shaft 121 of this joint 120 extends rearward, and a rear subframe 123 of the rear vehicle body 103 is connected to the rear end of the shaft 121. A rear fork 125 is pivotally attached to the frame 123 so as to be able to swing freely about a pin 126, and a drive unit 127 consisting of an engine, a transmission mechanism, etc. is mounted on the rear fork 125, and the drive unit 127 drives the rear two wheels. It is disposed between the wheels 124, 124 and is connected to the drive wheel. In the illustrated example, the drive unit 127 is housed within the outline of the drive wheel 124, and the muffler 164 is also housed within this outline. covered.

In the second tricycle 101, an operating lever 132 is provided on a holder 166 that is located under the seat 110 and is fitted into the seat post 109, and the operating lever 132 is pivotably pivoted to the holder 166 at an upper base 132a. As shown in Fig. 9, turn off the seat in the state where it hangs down like a seat bottom.
The base portion 132a is used as a fulcrum to swing in the direction, and the state in which it is held is the barking brake activation and swing lock state. And the base of the lever 132 is the seat boss l-109,
An operating rod 167 is provided to run vertically inside the holder 166.
11 to 13 are enlarged views of the joint section including the parking brake mechanism and the swing lock mechanism. be.

A rotational swing shaft 121 is fixed to the front end of the rear subframe 123 on the rear vehicle body 103 side, and the middle or front portion of the shaft 121 is fitted with bearings 168 and 169 into a case 122 fixed to the rear lower surface of the front vehicle body 102. The front vehicle body 102 including the case 122 rotates and swings about the shaft 121 on the fixed side. A bulging member 170 is coupled to the front outer periphery of the shaft 1 21 inside the case 122, and a rubber 171 is interposed between the outer periphery of the bulging member 170 and the inner wall of the case 122. It functions as a restoring force for the front vehicle body when moving.

A lock play 1-141 is fixedly installed in the middle part of the case 122 of the shaft 121, and the lock play 1-141 is connected to the 14th
As shown in the figure, the case 1 is equipped with four retaining parts 141a at the upper end and regulating pieces 141b and 141b on both sides of the lower part.
A stopper piece 172 is provided on the side of the case 122, which is located in the middle in a normal posture, and the swinging around the axis on the case 122 side, that is, the swinging of the front body 102, is caused by the stopper piece 172 being in contact with the pieces 141b and 141b. Swinging parts are restricted.

An upwardly protruding portion 122a is formed at the rear of the case 122, and a rotary operation shaft 173 is installed across the upper part of the space formed by this portion 122a, and one end of the shaft 173 is connected to the portion 1
22a protrudes outward, and an L-shaped operation link 17 is attached to this part.
4 is fixedly attached to the link 174 of the part 122a.
One end of a spring 175 installed on the side surface is locked, and one end 174a of the link 174 is connected to the previously described operating rod 167 by a spring 176. A release sleeve 177 is provided on the shaft 173 in the portion 122a by spline fitting or the like, and a pusher 178 is rotatably fitted in the axially central layer of the sleeve 177, with one end of the pusher 178 being rotatably fitted. It is locked to the other end of a release spring 179 that is locked to the sleeve 177. Then axis 1
A support 11+180 is provided between the lower part of the shaft 73 and the shaft 121, and the base of the lock pawl 181 is supported by the support 11+180, and the pawl 181 is elastically biased in the release direction by a return spring 182.
The claw portion 181a of the claw 181 faces the engagement recess 141a of the lock plate 141 in the normal posture. The cam portion 181b on the rear surface of the claw 181 faces the tip pushing portion 178a of the pusher 178.

In the above description, the operating link 174 is in the OFF state in the position indicated by the chain line A in FIGS.
7 is pulled, and accordingly, the link 174 moves 1:η via the spring 176, and becomes the ON position B. The shaft 173 (l-J: rotates by a predetermined angle clockwise in FIG. The lock plate 141 is rotated about the support shaft 180 in the counterclockwise direction 1 in FIG. Recess 14
1a. This state is shown in FIG.
The pawl 181 of the front vehicle body 102 on the swinging side engages with the front vehicle body 102.
02 is locked and its swinging is restricted. Since the pusher 178 is pressed and driven by the release spring 179, the engagement recess 141a between the pawl 181 and the lock plate 141
Even if the lock plate 141 is not compatible, the lock plate 141
When the front vehicle body 102 is brought into contact with the outer periphery and the front vehicle body 102 is swung into a normal posture, the claw portion 181a and the recessed portion 141a are fitted in the matching position and locked. One end 183a of the brake link 183 is attached to the other end 174b.
is pivotally connected via a pin 184, and the other end 1 of the link 183
83b is connected to the inner 134a of the brake cable 134 connected to the lever brake lever 185 of the handle 108. Also, the middle part of the link 183 is connected to the inner 1 of the rear brake cable 135 that operates the brake of the rear wheel 124.
35a, a stopper 186 is provided on the rear surface of the lower end of the link 183, and this portion is in contact with the stopper 186. When the brake lever 185 is operated, the cable inner 134aU is pulled, the link 183 swings to the right in FIG. 11 using the bin 184 at one end 183a as a fulcrum, and the cable inner 135a on the rear wheel side is pulled to the right in the figure. ,
Performs normal braking.

By operating the operating lever 132, the operating link 174 swings in three directions and reaches position B, locking the swinging portion as described above, and causing the lower end 174b of the link 174 to swing counterclockwise. Since the lower end 183b of the link 183 is regulated by the stopper 186, it swings to the right in FIG. 11, and as a result, the cable inner 135a is pulled to the right in the diagram. In other words, the brake is activated. Therefore, the parking brake is activated.This state is shown in Figure 11.

As described above, by operating the lever 132, it is possible to actuate the king brake, to simultaneously lock the rocking of the front and rear vehicle bodies, and to lock the cylinder mechanism by operating the lever 132 twice. Therefore, there is no need to perform the locking brake and swing locking operations separately, and both can be locked at the same time with just one simple operation. In addition, an interlocking mechanism is provided around the swinging part in front of one operating system, so that even if the swing lock is locked, once the operation is performed, the front vehicle body 102 It can be shifted to lock by swinging.

15 to 17 show further modified embodiments of the invention.

The lever 232 provided on the boulder 266 of the engine 1-210 is connected to the pin 2r3 via a cable 267 and a spring 276.
One of the links 274a arranged in an L-shape pivoted by
The other link 274)) is connected to the pin 2731 and is spaced apart from the other link 274a. The relationship between links 274d and 274b (7) is one 274a (D 'Dr
When the other 274b moves, the other 274b moves, but when the other 274b swings, the one 274a does not move. At the end of the other 274b is a lever brake equipment 287.
The middle point of one rear brake cable 234 connecting the brake lever of the front handle is connected. A swing regulating portion 241 is provided on the rear body side, and for example, this may be a swing shaft as described above, or may be a rear sub frame, or if a joint is provided on the rear body side, the outer part of this may be ~ is fine. On the front part of this part 241 is a retaining tooth part 241a.
A lock arm 281 is provided on the front body side so as to face this, and the arm 281 has its base connected to the pin 2.
80, and an engagement recess 281a corresponding to the tooth portion 241a is formed at the rear end. and lock arm 2
The lower surface of 81 is a leaf spring 282 and one of the links 274 mentioned above
connected to a.

In the above, the cable inner 234 is pulled by the brake lever provided on the handle, and the brake 28 is pulled.
7 works. In this case, although the other link 274b swings in the counterclockwise direction in FIG.
A does not swing and can be operated normally.

When the operating lever 232 moves upward, one link 274d moves upward via the cable 267 and the spring 276, and accordingly, the other link 274b also swings in the braking direction, causing the brake to perform a braking operation. The link 274a of the spring 282 (normally) swings in the direction of rotation, and the engagement recess 281a is connected to the toothed portion 241a on the rear trunk side.
, and the front vehicle body is locked from swinging. In this case, the spring 282 functions as a release spring similarly to the above embodiment.

As is clear from the above, according to the present invention, the king brake and the vehicle body swing locking mechanism can be operated with one system of mechanisms with a single operation when parking, which is rational. A common control element is provided near the steering wheel, which is advantageous in terms of space utilization.2.It is easy to operate, and there is no chance of forgetting to release it, making it highly practical6.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is an external side view of the tricycle, Fig. 2 is a plan view of the same, Fig. 3 is a view from the rear of the seat, and Fig. 4 is a view of the tricycle. Enlarged view of locking mechanism, 5th
6 is a front view of the locking mechanism, FIG. 7 is a vertical sectional view of the axle including the no-king brake, and FIG. 8 is an explanatory view of the neutral mechanism. ,
Fig. 9 is an external side view of the tricycle of the modified example, Fig. 10 is a plan view of the same, Fig. 11 is an external view of the parking operation mechanism, Fig. 12 is a vertical side view of the same, and Fig. 13 is the same as Fig. 12. 13-13 line sectional view, Fig. 14 is an end sectional view of the lock plate part, Fig. 15
7 is a schematic explanatory diagram showing the main part of a further modified embodiment, No. 16
The figure is a view taken in the direction of arrow 16 in FIG. 15, and FIG. 17 is a view taken in the direction of arrow 17 in FIG.
4 is the wheel, 32°132, 232 is the parking operator, 3B
, 39.41, 141. 181, 241, 281 are locking mechanisms, 42a,
43, 134. 135.183.234.287 is a purging brake service. Patent applicant: IB Giken Kogyo Co., Ltd.

Claims (1)

[Claims] In a rocking tricycle that has one front wheel and two rear wheels, and the front body is rockably connected to the rear body, a rocking motion between the front body side and the rear body side that engages the other by the movement of one side. A locking mechanism is provided, a parking brake mechanism is provided on the wheel in conjunction with a brake, or independently, and a common operator for operating the brake mechanism and the lock is provided near the steering handle. A parking device for tricycles.