WO2007114211A1

WO2007114211A1 - Cart wheel and universal wheel

Info

Publication number: WO2007114211A1
Application number: PCT/JP2007/056787
Authority: WO
Inventors: Seiji Motoyuki
Original assignee: Seiji Motoyuki
Priority date: 2006-04-06
Filing date: 2007-03-29
Publication date: 2007-10-11
Also published as: JPWO2007114211A1; JP4977690B2

Abstract

[PROBLEMS] A cart wheel, where, when a cart with the cart wheel is made to travel, the cart wheel generates electricity to enable a light to be on. [MEANS FOR SOLVING PROBLEMS] A baby carriage (10) as a cart having the cart wheel of the invention has a baby carriage body (100) and the cart wheel (1). The cart wheel (1) has a wheel body (2), a dynamo (3) having a stator (4) and a rotor (5), a bush nut (7) for fixing the rotor (5) of the dynamo (3) received in a dynamo receiving section (23) provided in the wheel body (2), and an installation section (8) for installing the cart wheel (1) on the baby carriage body (100).

Description

Specification

Wheelbarrow wheels and universal wheels

Technical field

TECHNICAL FIELD [0001] The present invention relates to a wheelbarrow wheel mounted on a wheelbarrow such as a stroller or a carriage, a wheelbarrow having a wheelbarrow wheel, a free wheel, and a wheeled moving body having a wheel. . Background art

[0002] Conventionally, baby carriages, carts, etc. are widely known as wheelbarrows! Since these wheelbarrows, for example, beavers, run at low speeds, it is normal that no lighting fixtures are provided to illuminate the road when traveling.

[0003] However, when driving at night even when driving at low speed, it is often necessary to have a luminaire because the dent of the road and the pool of water are not known. In addition, when driving at night, if there is no lighting equipment in the stroller, there is a danger that the stroller will be difficult to understand from the car. For this reason, when driving a stroller at night, it is often the case that you drive while turning on a portable light.

Disclosure of the invention

[0004] The present invention relates to a wheel for a handcart that can be used as a power source for a light, etc., a handcart having a wheel for a handcart, a free wheel, and a wheel having a free wheel. The purpose is to provide a mobile body with a pad.

[0005] The present invention is a wheelbarrow wheel equipped in a wheelbarrow, and includes a wheel body and a dynamo, and the wheel body can roll on a part of the wheelbarrow and run on the ground. The dynamo is attached to the rotating body and is configured to generate electricity when the wheel body rolls.

[0006] The present invention is a universal wheel mounted on a moving body with wheels, and holds the wheel main body and the wheel main body so as to be able to run and rotate, and the wheel around an axis substantially orthogonal to the running rotation axis of the wheel main body. A dynamo comprising a bracket rotatably supported by a movable body, a stator portion having a coil portion, and a rotor portion having a magnet that rotates relative to the stator portion; And a light electrically connected to the dynamo, the rotor part being fixedly attached to the wheel body, and the stator part and the light being fixedly attached to the bracket.

[0007] The features of the present invention can be broadly shown as described above, but the configuration and contents thereof, together with the purpose and features, will be further clarified by the following disclosure after taking the drawings into consideration. I will.

Brief Description of Drawings

FIG. 1 is an exploded view of a main part of a stroller 10 having a wheelbarrow wheel 1 according to a first embodiment of the present invention.

FIG. 2 is an explanatory view with a cross section of the main part.

3A is a front view of the mounting portion, FIG. 3B is a plan view thereof, FIG. 3C is a left side view thereof, and FIG. 3D is a right side view thereof.

FIG. 4 is a cross-sectional view of a main part of another embodiment of a wheelbarrow wheel 1 of the first embodiment.

FIG. 5A is a front view of a transport vehicle 300 having wheelbarrow wheels 200a of a second embodiment, and FIG. 5B is a right side view thereof.

FIG. 6 is an exploded view of a main part of a transport vehicle 300 having a wheelbarrow wheel 200a of a second embodiment.

FIG. 7A is a left side view of a transport vehicle 500 according to a third embodiment. FIG. 7B is a front view of the transport vehicle 500.

FIG. 8 is an exploded view of a caster 510 that is a free wheel mounted on the transport vehicle 500.

FIG. 9 is a cross-sectional view of a main part of a caster 510.

FIG. 10 is a schematic diagram showing a configuration of a wheelchair 600 according to a fourth embodiment.

FIG. 11 is an exploded view of a caster 610 that is a universal wheel attached to the wheelchair 600.

FIG. 12 is a cross-sectional view of main parts of a caster 610.

BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 1 is an exploded view of a main part of a stroller having a wheelbarrow wheel according to the first embodiment of the present invention, and FIG. 2 is an explanatory view in cross section of the main part.

In the first embodiment, the wheelbarrow having the wheelbarrow wheels is actually used as the stroller 10. It has been subjected. The stroller 10 includes a stroller body 100 as a handcart body, and a wheelbarrow wheel 1 attached to the baby 100.

[0011] The stroller body 100 includes four leg portions 101 (only one is shown in FIGS. 1 and 2) and an attachment shaft 102 for attaching the wheel 1 for the wheelbarrow to the leg portion 101. I have. Each of the leg portions 101 is provided with a shaft through hole 101a through which the mounting shaft 102 passes.

[0012] Although not shown, the stroller body 100 includes a light that can be turned on.

[0013] In this first embodiment, the wheel 1 for the wheelbarrow includes a wheel body 2, a dynamo 3, and a push nut 7 as a fixing portion that fixes a rotor portion 5 of the dynamo 3 to be described later to the wheel body 2. An attachment portion 8 for attaching the wheel 1 for the wheelbarrow to the beaker body 100 is provided. Incidentally, the wheel 1 for the wheelbarrow of the present invention is implemented in one of the four wheels in the first embodiment, and the other three have the same configuration as the conventional one. The

[0014] The wheel body 2 includes a traveling portion 21 that travels while rolling on the ground, and a support portion 22 that supports the traveling portion 21 also in the radial inner force.

[0015] In this embodiment, the traveling unit 21 is composed of a rubber ring-shaped member.

In this embodiment, the support portion 22 is made of a synthetic resin. The support portion 22 also includes a dynamo storage portion 23 having a storage recess 23d formed on one end side (left end side) in the axial direction and recessed from one end thereof to the other end side (right end side) in the axial direction. Yes.

[0017] The dynamo storage part 23 includes a first inner peripheral wall 23a, a second inner peripheral wall 23b having a diameter larger than the first inner peripheral wall 23a, and an inner bottom wall 23c. The storage recess 23d is partitioned and formed in a donut shape by these walls. The dynamo storage unit 23 is provided with an opening 24 for inserting the dynamo 3 at the left end.

[0018] In this embodiment, the first inner peripheral wall 23a is formed so as to be substantially concentric with the axis of the wheel body 2. The second inner peripheral wall 23b is formed so as to be substantially concentric with the first inner peripheral wall 23a.

Therefore, in this embodiment, the storage recess 23d of the dynamo storage part 23 is formed so as to be substantially concentric with the axis of the wheel body 2.

[0020] In addition, a cylindrical boss portion 25 that is substantially concentric with the axis of the wheel body 2 is formed at the center of the dynamo storage portion 23 by a first inner peripheral wall 23a. In addition, an attachment shaft through hole 26 through which the attachment shaft 102 passes is provided at the center of the boss portion 25, that is, the center of the wheel body 2.

The dynamo 3 is formed in a donut shape (cylindrical shape) that can be accommodated in a donut-shaped dynamo accommodating portion 23 in the wheel body 2. The dynamo 3 of this embodiment includes a stator part 4, a rotor part 5 that rotates with respect to the stator part 4, and a stator support member 6 that supports the stator part 4.

The stator portion 4 includes a cylindrical bobbin 41 having a coil portion 41a and a stator core.

[0024] The stator core includes a first stator core piece 43 and a second stator core piece 44. The first stator core piece 43 includes a core body piece 43a, pole pieces 43b '·' 43b, and an inner peripheral wall 43c.

[0025] The core body piece 43a is made of a metal ring plate. The pole pieces 43b '· -43b are also constituted by a plurality of forces arranged in the circumferential direction at substantially equal intervals with a constant gap 43d' · '43d therebetween. Also, each pole piece 43b '·' 43b is bent from the outer peripheral tip of the core body piece 43a and extended in the axial direction! Speak.

[0026] The inner peripheral wall 43c is formed by bending from the inner periphery of the core main body piece 43a, and has an axis substantially in the same direction as the pole pieces 43b '·' 43b on the radially inner side of the pole pieces 43b · -43b. It is extended in the direction.

[0027] The second stator core piece 44 is formed substantially symmetrically with the first stator core 43. The first stator core piece 43 and the second stator core piece 44 are combined from the left and right sides so that one pole piece 43b, 44b enters the other gap 44d, 43d. As shown in FIG. 2, a bobbin housing portion 45 having a cylindrical space is defined by the core body pieces 43a and 44a, the pole pieces 43b and 44b, and the inner peripheral walls 43c and 44c.

Then, the bobbin 41 is stored in the bobbin storage part 45 formed in this way. Further, when the bobbin 41 is housed in the bobbin housing 45, the non-rotating protrusion 41b '·' 41b force provided on the outer wall of the bobbin 41 is the core body piece 43a of the first stator core piece 43 and the second stay. The bobbin 41 is prevented from rotating with respect to the stator core 42 by being fitted into protruding piece fitting holes 43e and 44e (shown in FIG. 2) provided in the core body piece 44a of the core 44. [0029] It should be noted that the terminal 41c (shown in FIG. 2) is taken out from the coil portion 41 housed in the bobbin housing portion 45 in this way, and this terminal 41c is connected to the light of the stroller body 100. ing.

The stator support member 6 includes a cylindrical portion 62 made of a synthetic resin and a covering portion 61. The cylindrical portion 62 is a portion that supports the stator portion 4, and the inner periphery of the stator portion 4 is inserted into the hook, and the stator portion 4 is supported by the inner peripheral force.

The covering portion 61 is formed in a disk shape integrally with the tubular portion 62 at one end (left end) in the axial direction of the tubular portion 62. The covering portion 61 covers the opening 24 of the wheel body 2 over almost the entire area V, and is connected to the mounting portion 8 to be fixed.

The covering portion 61 includes a fitting hole 64 into which the boss portion 25 of the wheel body 2 is fitted. The fitting hole 64 is formed so as to be substantially concentric with the axial center of the cylindrical portion 62. Therefore, when the fitting hole 64 is inserted into the boss portion 25 of the wheel main body 2, the axial center of the cylindrical portion 62 substantially coincides with the axial center of the wheel main body 2.

In addition, the diameter of the outer periphery of the covering 61 in this embodiment is set larger than the diameter of the opening 24 of the wheel body 2. The covering portion 61 includes bolt insertion holes 63 and 63 through which connecting bolts 9 and 9, which will be described later, are passed.

The rotor unit 5 includes a plurality of magnets 51 (only one is shown in FIG. 1) and a magnet holding unit 52 that holds the magnet 51.

The magnet holding part 52 includes a holding frame 53, a magnet press 54, and a contact part 55. The holding frame 53 is made of a cylindrical material made of synthetic resin, and includes a plurality of magnet holding holes 53 a ′ and 53 a for holding the magnets 51. These magnet holding holes 53a '·' 53a are arranged so as to be arranged in the circumferential direction at substantially equal intervals. Each magnet holding hole 53a '·' 53a is formed so as to penetrate from the outer periphery to the inner periphery.

[0036] Further, the stator portion 4 can be arranged so as to be rotatable with respect to the stator portion 4 on the inner peripheral side of the holding frame 53 whose inner peripheral diameter is larger than the outer peripheral diameter of the stator portion 4. It is set as follows.

[0037] The magnet retainer 54 also includes a metal ring-shaped force. And this mug The net retainer 54 is fitted on the outer periphery of the holding frame 53 that holds the magnet 51 in the magnet holding holes 53a '·' 53a. As a result, the magnet 51 that is about to come out from the magnet holding hole 53a '·' 53a to the outer peripheral side is pressed, and the magnet 51 is prevented from being forced out of the magnet holding hole 53a '·' 53a.

[0038] The contact portion 55 is made of a synthetic resin ring plate, and has a boss insertion hole 55a for inserting the boss portion 25 of the wheel body 2 at the center. The diameter of the boss insertion hole 55a is set to be approximately the same as the outer diameter of the boss portion 25.

[0039] The contact portion 55 is fixed to the right end of the holding frame 53 by a fixing means such as an adhesive. Further, the shaft center of the boss insertion hole 55a of the contact portion 55 and the shaft center of the holding frame 53 are substantially aligned with each other while being fixed to the holding frame 53. Therefore, when the boss portion 25 of the wheel body 2 is inserted into the boss insertion hole 55a of the abutment portion 55, the axis of the holding frame 53 and the axis of the boss portion 25 of the wheel body 2 are substantially aligned. Get ready!

Further, as will be described later, when the rotor portion 5 is stored in the dynamo storage portion 23 of the wheel body 2, the contact portion 55 is the inner bottom of the dynamo storage portion 23. Abut against wall 23c.

In this embodiment, the push nut 7 is a push nut 71 for fixing a port for fixing the rotor portion 5 to the wheel body 2 and a press nut for holding the push nut 71 for fixing the rotor. The push nut 72 is provided.

[0042] These push nuts 71 and 72 are configured to have a ring-like force, and include push-in holes 71a and 72a into which the boss 25 of the wheel body 2 is pushed. The diameter of the insertion holes 71a and 72a is slightly smaller than the diameter of the boss 25 of the wheel body 2! / ヽ.

[0043] In addition, coasting pieces 71b and 72b are provided on the peripheral portions of the push holes 71a and 72a of the push nuts 71 and 72, respectively. The insertion holes 71a and 72a are expanded by these inertial pieces 71b and 72b!

[0044] As shown in FIGS. 3A, 3B, 3C, and 3D, the attachment portion 8 includes a base portion 81 and a leg holding portion 82. The base 81 has four bolt locking holes 81a '·' 81a for locking the connecting bolts 9 and 9 (shown in FIGS. 1 and 2) for connecting the mounting portion 8 and the stator support member 6 to each other. It has. Further, the base 81 has a mounting shaft through hole 81b through which the mounting shaft 102 is passed at the center. [0045] The leg holding part 82 includes a leg receiving part 82a for receiving the leg 101 of the stroller body 100. The leg holder 82 is drilled so that the mounting shaft through hole 82b through which the mounting shaft 102 passes is substantially concentric with the mounting shaft through hole 8 lb of the base 81.

The wheelbarrow wheel 1 configured as described above is attached to the stroller body 100 as follows.

First, the rotor unit 5 is fixed to the wheel body 2. This fixing is performed as follows.

The rotor part 5 is inserted into the dynamo storage part 23 of the wheel body 2 so that the boss insertion hole 55a of the contact part 55 in the rotor part 5 is inserted into the boss part 25 of the wheel body 2. Then, the rotor part 5 is inserted until the contact part 55 contacts the inner bottom wall 23c of the dynamo storage part 23. As a result, the axial center of the rotor portion 5 can be made substantially coincident with the axial center of the wheel body 2, and the assembling work can be facilitated.

[0048] Then, the boss portion 25 of the wheel body 2 is pressed against the insertion hole 71a of the push nut 71 for fixing the rotor. Thereby, the inertia piece 71b of the push nut 71 for fixing the rotor is elastically deformed so that the insertion hole 71a is widened and can be inserted into the boss portion 25. Then, the push nut 71 for fixing the rotor is stopped from being pushed into the boss portion 25 while the push nut 71 for fixing the rotor presses the contact portion 55 in the rotor portion 5.

Accordingly, the outer periphery of the boss portion 25 is pressed by the elastic force of the inertia piece 71 b of the push nut 71 for fixing the rotor, and the push nut 71 for fixing the rotor is fixed to the boss portion 25. Further, by this fixing, the contact portion 55 is pressed and fixed to the inner bottom wall 23c of the dynamo storage portion 23, and as a result, the rotor portion 5 is fixed to the wheel body 2.

[0050] From this state, in the same way as the case of the push nut 71 for fixing the rotor, the push nut 72 for holding is applied to the boss portion 25 of the wheel body 2 until it hits the push nut 71 for fixing the rotor. Push in. As a result, the push nut 72 for pressing is fixed to the boss portion 25 of the wheel body 2, and the push nut 71 for fixing the rotor can be kept fixed to the boss portion 25 of the wheel body 2.

Next, the stator portion 4 supported by the stator support member 6 is connected to the attachment portion 8. Specifically, the connecting bolts 9 and 9 that are passed through the bolt insertion holes 63 and 63 of the covering portion 61 of the stator support member 6 are screwed into the bolt locking holes 81a ′ and 81a of the mounting portion 8. As a result, stays The stator portion 4 supported by the data support member 6 and the mounting portion 8 can be coupled.

[0052] Next, the leg receiving portion 82a of the leg holding portion 82 of the attachment portion 8 is caused to receive the leg portion 101 of the stroller main body 100, the attachment shaft insertion hole 82b of the leg holding portion 82, and the stroller main body 100 Positioning is performed so that the shaft through hole 101a of the leg 101 and the mounting shaft through hole 81b of the base 81 of the mounting portion 8 communicate with each other.

[0053] From that state, after passing the attachment shaft 102 through the washer 103, the attachment shaft insertion hole 82b of the leg holding portion 82, the shaft insertion hole 101a of the leg portion 101 of the stroller body 100, and the attachment portion Pass through 8 lb of mounting shaft の in 8 base 81.

[0054] Further, the mounting shaft 102 is passed through the mounting shaft through hole 26 of the wheel body 2 to which the rotor portion 5 is fixed.

Then, a retaining push nut 104 is attached to the end of the mounting shaft 102 protruding from the mounting shaft through hole 26 of the wheel body 2. Note that the retaining push nut 104 has the same configuration as the above-described push nut 71 for fixing the rotor.

In this state, the stator portion 4 is arranged on the inner periphery of the holding frame 53 that holds the magnet 51 in the rotor portion 5, and the pole pieces 43 b and 44 b of the stator portion 4 and the magnet 51 of the rotor portion 5 are arranged. And the wheel body 2 rotates relative to the legs 101 of the beaker body 100 and rolls on the ground. Then, when the wheel body 2 is rolling, the rotor part 5 rotates with respect to the stator part 4, and electric power is generated by the magnetic induction action of the magnet 51 of the rotor part 5 and the coil part 41 of the stator part 4. Then, a light (not shown) connected to the terminal 41c of the coil part 41 can be turned on.

In the first embodiment, the outer peripheral diameter of the covering portion 61 of the stator support member 6 is a force that is set larger than the diameter of the opening 24 of the dynamo storage portion 23 of the wheel body 2. Not limited to this, it can be changed as appropriate.

For example, as shown in FIG. 4, the outer peripheral diameter of the covering portion 61 of the stator support member 6 is set slightly smaller than the diameter of the opening 24 of the dynamo storage portion 23 of the wheel body 2, and the stator support member The inner surface 61c of the covering portion 61 facing the stator portion 4 supported by 6 may enter the dynamo storage portion 23 of the wheel body 2.

[0058] By doing so, rainwater or the like dripping from the traveling part 21 of the wheel body 2 is likely to reach the ground via the outer surface 61d of the covering part 61 and enter the dynamo storage part 23. Can be.

In the first embodiment, the force composed of the push nut 7 is not limited to this form as a fixing portion for fixing the rotor portion 5 of the dynamo 3 to the wheel body 2 and may be changed as appropriate. The For example, the contact portion 55 of the rotor portion 5 of the dynamo 3 and the inner bottom wall 23c of the dynamo storage portion 23 of the wheel body 2 are fixed with an adhesive. Alternatively, the contact portion 55 and the inner bottom wall 23c may be fixed with an adhesive and may be fixed with the push nut 7.

[0060] When the push nut 7 is used, the push nut 7 may be fixed by only one push nut, for example, the push nut 71 for fixing the rotor.

Next, a second embodiment will be described with reference to FIGS. 5A, 5B, and 6.

In the second embodiment, the wheelbarrow having the wheelbarrow wheels is implemented as a transport vehicle (cart) 300. As shown in FIGS. 5A and 5B, the transport vehicle 300 according to the second embodiment includes a transport vehicle main body 301 as a handcart main body and four wheels 200a and 200b attached to the front and rear of the transport vehicle main body 301. With /!

[0063] In this embodiment, the transport vehicle body 301 includes a loading platform 302, an operation gripping portion 310 attached to the rear portion of the upper surface of the loading platform 302, and bolts 302a and nuts 302b on the lower surface of the loading platform 302. Four fixed brackets 303... 303, mounting shafts 304 and 304 that rotatably support the wheels 200 a and 200 b on each bracket 303, and two lights 309 and 309 attached to the front end of the loading platform 302 With /!

[0064] As shown in FIG. 6, each of the brackets 303 has a U-shaped force, and is provided with two opposing bracket legs 303a and 303a spaced apart from each other by a predetermined distance. . The bracket legs 303a and 303a are respectively provided with shaft through holes 303b and 303b through which the mounting shaft 304 is passed.

[0065] In addition, the mounting shaft 304 of this embodiment is configured by a bolt having a male screw 304a.

In this second embodiment, the wheels 200a and 200b have two front wheels that constitute the wheelbarrow wheels 200a and 200a of the present invention, and the other two rear wheels have the same configuration as the conventional one. What is taken is used.

[0067] The wheelbarrow wheels 200a, 200a of the present invention constituting the front wheel are the same as those of the first embodiment. Similarly to the above, the wheel main body 202, the dynamo 203, and the fixing portion for fixing the rotor portion 205 of the dynamo 203 to the wheel main body 202 are provided. In the wheelbarrow wheel 200a of the second embodiment, No part corresponding to the mounting portion 8 provided in the first embodiment is provided.

The wheel main body 202 includes a traveling unit 221 and a support unit 222, as in the first embodiment. Further, the traveling unit 221 and the support unit 222 have substantially the same configuration as that of the first embodiment.

[0069] Similarly to the first embodiment, the dynamo 203 also has a stator portion 204, a rotor portion 205 that rotates relative to the stator portion 204, and a stator support that supports the stator portion 204. Holding member 206.

Stator section 204 has the same configuration as that of the first embodiment. The stator support member 206 has substantially the same configuration as that of the first embodiment. However, the stator support member 206 of the second embodiment is provided with a member corresponding to the bolt hole 63, 63 provided in the stator support member 6 of the first embodiment. Nah ...

The rotor unit 205 includes a plurality of magnets 251 (only one is shown in FIG. 6) and a magnet holding unit 252 that holds the magnet 251.

The magnet holding unit 252 includes a holding frame 253 and a magnet presser 254. However, the magnet holding portion 252 of the second embodiment is not provided with a portion corresponding to the contact portion 53 provided in the magnet holding portion 52 of the previous first embodiment.

In addition, the holding frame 253 of the second embodiment is provided with screw holes 255 and 255 for receiving fixing bolts 224 and 224 described later on the outer periphery.

[0074] The fixing portion of the second embodiment for fixing the rotor portion 205 to the wheel body 202 is constituted by a plurality of fixing Bonoleto 224 and 224 forces. Then, the bolt holes 222a and 222a provided in the support portion 222 of the fixing Bonoleto 224 and 224 force wheel main body 202, the screw holders 255 and 255 of the holding frame 253 in the magnet holding rod 252, etc. By the insect accumulation, the rotor rod 05 is fixed to the wheel body 202 in a state of being housed in the dynamo housing part 223 of the wheel body 202.

[0075] Then, the rotor part 205 is housed and fixed in the dynamo housing part 223 of the wheel body 202. At the same time, the stator 204 supported by the stator support member 206 is accommodated, and the wheel body 202 is inserted between the bracket legs 303a and 303a of the bracket 303, and the shaft hole of the bracket leg 3 03a is inserted. Align 303b and 303b with the shaft hole 226 of the wheel body 202.

[0076] In this state, the mounting shaft 304 is passed through the shaft flange hole 303 of one of the bracket legs 303a (left side in FIG. 6) through the shaft hole 226 of the wheel body 202, and the other (right side). Bracket legs 3 Pass through the shaft hole 303b of 03a. Then, as soon as the washer 305 is passed through the mounting shaft 304 coming out of the shaft hole 303b, the nut 306 is accumulated on the male rod 304a of the mounting shaft 304 and hoofed.

[0077] Thereby, the wheel body 202 can be rotatably attached to the bracket 303, and in this state, the wheelbarrow wheel 200a forms a so-called caster with the bracket 303 and runs on the ground. Further, when the wheel body 202 is rolling, the rotor unit 205 rotates with respect to the stator 204 to generate electricity, and a light (not shown) connected to the terminal of the coil unit 41 can be turned on.

Next, a description will be given of a transport vehicle 500 that is a wheeled moving body and is also a handcart in a third embodiment of the present invention. FIG. 7A is a left side view of the transport vehicle 500, and FIG. 7B is a front view thereof. FIG. 8 is an exploded view of a caster 510 that is a free wheel mounted on the transport vehicle 500 and is also a wheelbarrow wheel. FIG. 9 is a cross-sectional view of the main part of the caster 510.

[0079] As shown in FIGS. 7A and 7B, the transport vehicle 500 includes a loading platform 502, a handle 504 attached to the rear of the loading platform 502, a pair of casters 510 (front wheels) attached to the lower end of the loading platform 502, and With a pair of fixed wheels 580 (rear wheels)!

A caster 510 used as a front wheel includes a wheel body 530 and a bracket 511. The bracket 511 holds the wheel body 530 so as to be able to travel and rotate about the travel rotation axis 533. Further, the bracket 511 is rotatably held on the platform 502 of the transport vehicle 500 around an axis 513 that is substantially orthogonal to the traveling rotation axis 533 of the wheel body 530 at the position of twist.

That is, as shown in FIG. 9, the bracket 511 includes a wheel holding portion 514 and a base portion 512, and the wheel holding portion 514 and the base portion 512 are coupled so as to be rotatable around the shaft 513. Has been. The base portion 512 is formed by a well-known coupling means such as a screw or an integral molding. It is fixed to the loading platform 502 of the transporter 500 by means of an integrated knowledge method.

As shown in FIG. 7a, the fixed wheel 580 used as the rear wheel includes a wheel body 584 and a bracket 582. The bracket 582 holds the wheel body 584 so as to be able to travel and rotate about the travel rotation axis. Further, unlike the caster 510, the bracket 582 is fixedly held on the loading platform 502 of the transport vehicle 500.

Now, as shown in FIG. 8, the bracket 511 of the caster 510 includes the wheel holding portion 514 and the base portion 512 as described above. The wheel holding unit 514 includes a pair of holding legs 516 and 518 that are opposed to each other with the wheel space 520 interposed therebetween. The holding legs 516 and 518 are provided with through holes 522 and 524, respectively.

As shown in FIG. 9, the wheel body 530 has the same configuration as that of the first embodiment. That is, the wheel main body 530 includes a traveling part 532 (tire) and a support part 534. The support portion 534 is provided with a dynamo storage portion 536 having a storage recess formed by being recessed in a donut shape from at least one end side (dynamo mounting side) in the axial direction.

Returning to FIG. 8, the dynamo 552 is arranged in the wheel space 520 of the bracket 511 together with the wheel main body 530 in a state where the dynamo 552 is arranged in the dynamo storage portion 536 of the wheel main body 530. The wheel body 530 is connected to the wheel holding portion 514 of the bracket 511 by the shaft 526 passing through the through hole 522 of the holding leg 516, the shaft hole 538 of the wheel body 530, and the through hole 524 of the holding leg 518. It is held rotatably about the axis. The shaft 526 is fixed to the wheel holding portion 514 of the bracket 511 by a nut 528 screwed into one end of the shaft 526.

The dynamo 552 is formed in a donut shape (cylindrical shape) that can be stored in the donut-shaped dynamo storage portion 536 of the wheel body 530, as in the case of the first embodiment. . The dynamo 552 of this embodiment includes a stator portion 4 having a coil portion, a rotor portion 540 that rotates with respect to the stator portion 4, and a stator support member 550 that supports the stator portion 4.

[0087] The configuration of the stator section 4 is the same as that of the first embodiment. A stator support member 550 is coupled to the outer surface of the stator portion 4 (left side surface in FIG. 8) by a known coupling method such as adhesion. In this embodiment, the stator support member 550 is formed in a substantially disc shape having a central through hole for allowing the shaft 526 to pass through substantially the center. The rotor section 540 has the same configuration as in the first embodiment, and a plurality of magnets 51 are held in a plurality of magnet holding holes 542 provided around the donut-shaped holding frame 54 1. ing. However, the contact part 55 (refer FIG. 1) like 1st Embodiment is not provided. The wheel flange portion of the holding frame 541 (the right flange portion in FIG. 8) is formed in a convex shape that substantially matches the shape near the concave bottom portion of the dynamo storage portion 536 of the wheel body 530. The wrinkle portion of the holding frame 541 formed in this convex shape corresponds to the contact portion.

As shown in FIG. 9, the rotor portion 540 is disposed so as to abut on the vicinity of the concave bottom portion of the dynamo storage portion 536 of the wheel main body 530, and the wheel main body 5 30 by a well-known coupling means such as a screw or an adhesive. Are fixedly coupled to each other. This known coupling means corresponds to the fixing portion. At this time, the center axis of the wheel body 530 and the center line of the holding frame 541 of the rotor part 540 are configured to coincide with each other. As in the case of the first embodiment, the rotor unit 540 includes a magnet presser 54 (see FIG. 1), but is not shown in the drawing for convenience of explanation.

[0090] The stator portion 4 has a pole piece 43b, 44b (see FIG. 1) of the stator portion 4 so that the central axis of the stator portion 4 matches the inner circumferential space 546 of the donut-shaped rotor portion 540. The rotor unit 540 is arranged so as to be as close as possible to the magnet 51. The stator portion 4 arranged in this way is fixedly coupled to the wheel holding portion 514 of the bracket 511 using a known coupling means via the stator support member 550.

[0091] A light 560 (for example, a light emitting diode) is attached to an appropriate portion of the wheel holding portion 514 of the bracket 511 (in this example, near the upper end of the wheel holding portion 514 and on the side of the holding leg 516). ing. In this embodiment, the light 560 is connected to the power output terminal of the dynamo 552 via wiring (not shown) located inside the bracket 511 and, if necessary, a lighting control circuit (not shown). It is electrically connected to 41c (see Figure 2).

The light 560 is fixedly coupled to the wheel holding portion 514 of the bracket 511 using a known coupling means such as a screw or a known integration means such as integral molding. In this embodiment, the light 560 is configured to irradiate the front of the caster 510 in the traveling direction.

[0093] Next, a wheelchair 600 that is a wheeled moving body and is also a handcart in a fourth embodiment of the present invention will be described. FIG. 10 is a schematic diagram showing the configuration of the wheelchair 600. FIG. 11 is an exploded view of a caster 6 10 that is a free wheel mounted on the wheelchair 600 and is also a wheelbarrow wheel. FIG. 12 is a cross-sectional view of the main part of the caster 610.

As shown in FIG. 10, a wheelchair 600 includes a main body 602, a handle 604 attached to the rear of the main body 602, a pair of casters 610 (front wheels) attached to the lower part of the main body 602, and a pair of fixed wheels 680. With (rear wheel)!

A caster 610 used as a front wheel includes a wheel main body 630 and a bracket 611. The bracket 611 holds the wheel body 630 so as to be able to travel and rotate around the travel rotation axis 633. The bracket 611 is rotatably held by the main body 602 of the wheelchair 600 around an axis 613 that is substantially orthogonal to the traveling rotation shaft 633 of the wheel main body 630 at the position of twist.

That is, as shown in FIG. 12, the bracket 611 includes a wheel holding part 614 and a vertical axis part 612. By inserting the vertical axis portion 612 into the front vertical pipe constituting the main body 602 of the wheelchair 600 shown in FIG. 10, the bracket 611 is coupled to the main body 602 so as to be rotatable around the axis 613.

As shown in FIG. 10, the fixed wheel 680 used as the rear wheel is held so as to be able to run and rotate with respect to the main body 602.

As shown in FIG. 11, the bracket 611 of the caster 610 includes the wheel holding portion 614 and the vertical axis portion 612 as described above. The wheel holding portion 614 includes a pair of holding legs 616 and 618 that are opposed to each other with the wheel space 620 interposed therebetween. The holding legs 616 and 618 are provided with through holes 622 and 624, respectively.

As shown in FIG. 12, the wheel body 630 has the same configuration as that of the first embodiment. In other words, the wheel main body 630 includes a traveling portion 632 (tire) and a support portion 634. The support portion 634 includes a dynamo storage portion 636 having a donut-shaped storage recess formed by recessing the one end side force at least on one end side in the axial direction (dynamo mounting side).

As shown in FIG. 11, the dynamo 652 is arranged in the wheel space 620 of the bracket 611 together with the wheel main body 630 in the state of being arranged in the dynamo storage portion 636 of the wheel main body 630.

[0101] As shown in FIG. 12, the boss portion at the center of the support portion 634 of the wheel body 630 has a through hole. A pair of bearing holding holes 638 are provided at both ends of the through hole. A pair of bearings 670 and 671 are fitted in the pair of bearing holding holes 638.

[0102] The wheel body 630 includes a through-hole 622 in the holding leg 616, a central through-hole in the washer 675, a center metal through-hole in the disk bracket 654 in the stator support member 650, which will be described later, a central through-hole in the collar 673, and a pair of bearings. 670, 671 central through hole, collar 672 central through hole, washer 674 central through hole, holding leg 618 through hole 624 through shaft 626, with respect to wheel holder 614 of bracket 611, shaft 626 It is held rotatably about the axis. The shaft 626 is fixed to the wheel holding portion 614 of the bracket 611 by a nut 628 screwed into one end of the shaft 626.

[0103] The dynamo 652 is formed in a donut shape (cylindrical shape) that can be stored in the donut-shaped dynamo storage portion 636 of the wheel body 630, as in the case of the first embodiment. . The dynamo 652 of this embodiment includes a stator portion 4 having a coil portion, a rotor portion 640 that rotates with respect to the stator portion 4, and a stator support member 650 that supports the stator portion 4. The

The configuration of the stator portion 4 is the same as that in the first embodiment. A stator support member 650 is coupled to the outer surface (left side surface in FIG. 11) of the stator portion 4 by a known coupling method such as adhesion. In this embodiment, a disk bracket 654 formed in a substantially disk shape is integrally incorporated in the stator support member 650 by a well-known integral means such as insert molding. A central through hole for allowing the shaft 626 to pass therethrough is provided at the approximate center of the disc fitting 654.

The rotor section 640 has the same configuration as in the first embodiment, and a plurality of magnets 51 are held in a plurality of magnet holding holes 642 provided around the donut-shaped holding frame 641. ing. However, the contact part 55 (refer FIG. 1) like 1st Embodiment is not provided. The wheel flange portion (the right flange portion in FIG. 12) of the holding frame 641 is formed in a convex shape that substantially matches the shape of the concave bottom portion or side wall of the dynamo storage portion 636 of the wheel body 630. The wheel part of the holding frame 641 formed in this convex shape corresponds to the contact part.

As shown in FIG. 12, the rotor section 640 is disposed so as to contact the concave bottom or side wall of the dynamo storage section 636 of the wheel body 630, and is connected to the vehicle by a well-known coupling means such as a screw or an adhesive. Fixed to the ring body 630. This well-known coupling means corresponds to the fixing portion. At this time, the center axis of the wheel body 630 and the center line of the holding frame 641 of the rotor portion 640 are configured to coincide with each other. As in the case of the first embodiment, the rotor unit 640 includes a magnet retainer 54 (see FIG. 1), but is omitted from the drawing for convenience of explanation.

[0107] The stator portion 4 has an inner circumferential space 646 of the doughnut-shaped rotor portion 640 so that the central axes of the stator portion 4 and the pole pieces 43b and 44b (see Fig. 1) of the stator portion 4 The rotor part 640 is arranged so as to be as close as possible to the magnet 51. The stator portion 4 arranged in this way is fixedly coupled to the wheel holding portion 614 of the bracket 611 using a known coupling means via the stator support member 650.

In this embodiment, the disk bracket 654 of the stator support member 650 is attached as described above with the holding legs 616 of the bracket 611 fitted in the notches 651 provided in the stator support member 650. The stator supporting member 650 is fixedly coupled to the wheel holding portion 614 of the bracket 611 by being sandwiched between the washer 675 and the collar 673.

As shown in FIG. 11, a light 660 (in the vicinity of the cylindrical surface of the substantially cylindrical outer convex portion 653 constituting the outer portion of the stator supporting member 650) in an appropriate portion of the stator supporting member 650 is formed. For example, a light emitting diode) is mounted. In this embodiment, the light 660 is for power output of the Dynamo 652 via wiring (not shown) located inside the stator support member 650 and, if necessary, a lighting control circuit (not shown). This is electrically connected to terminal 41c (see Fig. 2).

[0110] The light 660 is fixedly coupled to the stator support member 650 using a well-known coupling means such as adhesion or a well-known integral means such as insert molding. In this embodiment, a plurality of lights 660 (six in this example) are provided, and several forces (for example, three) illuminate the forward direction of the caster 610 and other forces (for example, three). Is configured to illuminate the rear of the caster 610 in the direction of travel.

[0111] It should be noted that in each of the above-described embodiments, the light is connected to the dynamo and the light is turned on when the wheelbarrow wheel or the free wheel rolls. Due to the action of the dynamo when the wheel or free wheel is rolling The generated electricity can be supplied to various things and can be changed as appropriate.

[0112] For example, a sound generator such as a music box sound generator is connected to the dynamo so that a sound such as a music box sound is generated when the wheelbarrow wheel or the free wheel rolls.

[0113] In each of the above embodiments, the power storage device is connected to the dynamo, the electricity generated from the dynamo is temporarily stored in the power storage device, and the stored power is supplied to the light or sound generator. Anyway.

[0114] In each of the above embodiments, the number of wheelbarrow wheels of the present invention used for one wheelbarrow or the number of free wheels of the present invention used for a vehicle with a wheel is not particularly limited. Three, four, or more can be used as appropriate. Moreover, both the wheel for a handcart of this invention and a free wheel can also be used for one handcart or a moving body with a wheel.

Further, in each of the above embodiments, the force with which the dynamo is housed in the dynamo housing portion of the wheel body is not limited to this form, and can be changed as appropriate. For example, the wheel body may not have a dynamo storage section, and the dynamo may be arranged on the side surface of the wheel body so as to protrude from the side surface.

[0116] Further, in the case where the dynamo storage unit is provided in the wheel body, the dynamo storage unit only needs to be capable of storing at least a part of the dynamo.

[0117] Further, the wheelbarrow of the present invention is a vehicle that is used by being pushed by a human hand. In addition to the above-described baby car, a transport vehicle (cart) for carrying an article, for example, the power of the elderly, a walking auxiliary vehicle, Illustrative examples include rounds and nurse skirts. Furthermore, the article itself includes a wheel attached to the article itself so that the article can be moved by rolling the wheel.

[0118] Further, the handcart is provided with a power source, and the driving force by the power source is also driven by the hand by the switching means, or the power source assists when driving by the hand. Cars that play are also included.

[0119] In addition to the above-described wheelbarrow, the wheeled moving body of the present invention may be a human-powered moving body in which a person riding on the moving body travels by rotating a wheel by himself or a power source other than human power. A concept including a power traveling vehicle that travels by rotating wheels with electric power or an internal combustion engine. It is.

[0120] A wheelbarrow wheel according to the present invention is a wheelbarrow wheel provided in the wheelbarrow, and includes a wheel body and a dynamo, and the wheel body rolls on the ground on a part of the wheelbarrow. The dynamo is configured so as to be able to generate electric power when the wheel body is rolling.

[0121] In other words, since the wheel for a wheelbarrow includes a dynamo configured to generate electricity when the wheel body rolls, the electricity generated by the dynamo is supplied to various types. Can be operated.

[0122] For example, if a light is connected to a dynamo, it can be turned on, and even when driving at night, dents and water pools can be seen, and portable lights can be eliminated. In addition, when driving at night, the vehicle can easily know its existence and can drive safely.

[0123] In addition, for example, when the wheel body is rolling, it is possible to supply the electricity generated by the dynamo to the sound generator to activate the sound generator and generate sound such as music box music and music. Become a trap.

[0124] In the wheel for a handcart according to the present invention, the dynamo includes a stator portion having a coil portion and a rotor portion having a magnet that rotates with respect to the stator portion. A fixing portion for fixing the rotor portion to the wheel body is further provided.

That is, in this wheelbarrow wheel, the dynamo includes a stator portion having a coil portion and a rotor portion having a magnet that rotates relative to the stator portion, and fixes the rotor portion to the wheel body.

[0126] Thus, when the wheel body is rolling, the rotor portion rotates with respect to the stator portion, and electricity can be generated by the electromagnetic induction action between the magnetic field of the magnet of the rotor portion and the coil portion of the stator portion. Therefore, it is possible to make the wheel body suitable for a wheelbarrow that is pushed by hand and does not require a very large load on the wheel body during power generation.

[0127] The wheelbarrow wheel according to the present invention has a dynamo storage section having a donut-shaped storage recess configured such that the wheel body is depressed at one end side in the axial direction on the one end side in the axial direction. The dynamo is formed in a donut shape that is accommodated in the dynamo accommodating portion, the rotor portion is provided with an abutting portion that abuts on the inner bottom wall constituting the dynamo accommodating portion, and the fixing portion is a ring having an insertion hole. When the boss part of the dynamo storage part is pushed into the insertion hole, the push nut presses the contact part of the rotor part against the inner bottom wall of the dynamo storage part, and the rotor part is against the wheel body. It is fixed.

That is, in this wheelbarrow wheel, the dynamo is formed in a donut shape that is accommodated in the dynamo accommodating portion, and this dynamo is in the dynamo accommodating portion having the donut-shaped accommodating recess in the wheel body. Because it is housed, the wheel width of the wheelbarrow wheel as a whole can be reduced, making it compact.

[0129] Since the dynamo is formed in a donut shape, it can be housed in a donut-shaped recess provided on the side surface of a wheelbarrow of a conventional baby carriage, for example. Therefore, a wheelbarrow wheel can be configured by using the wheel of a handcart such as a conventional baby carriage as it is as the wheel body of the present application, and is equivalent to the wheel width of a wheelbarrow of a conventional baby carriage. At the same time, wheelbarrow wheels can be manufactured at low cost.

[0130] In the wheelbarrow wheel according to the present invention, the dynamo storage unit includes an opening for storing the dynamo, the dynamo further includes a stator support member, and the stator support member supports the stator unit. A cylindrical portion and a dynamo storage in which a covering portion is provided on one end side in the axial direction of the cylindrical portion, and an inner surface facing the stator portion supported by the cylindrical portion accommodates the stator portion and the rotor portion. It is characterized in that it enters the inside from the opening of the part and closes the opening.

[0131] That is, in this wheelbarrow wheel, since the covering portion closes the opening of the dynamo storage portion, the opening force of the dynamo storage portion can be made difficult for dust and rainwater to enter. The rotor part can be protected by dust, rain water, etc.

[0132] Further, since the inner surface force of the covering portion enters the inside from the opening portion of the dynamo housing portion that houses the stator portion and the rotor portion, for example, the running force of the wheel body drops dripping rain water, etc. It is difficult to get into the dynamo storage part after reaching the ground. Therefore, the dynamo's stator and rotor can be protected from rainwater and the like, where the running force of the wheel body also drops. [0133] A universal wheel to be mounted on a wheeled moving body according to the present invention includes a wheel body, a wheel body that holds the wheel body so that the wheel body can rotate and is substantially perpendicular to the traveling rotation axis of the wheel body. A dynamo having a bracket that is rotatably held by the motor, a stator unit having a coil unit, a rotor unit having a magnet that rotates relative to the stator unit, and a light that is electrically connected to the dynamo. The rotor part is fixedly attached to the wheel body, and the stator part and the light are fixedly attached to the bracket.

Therefore, by connecting both the stator portion having the dynamo output terminal and the light fixedly to the bracket, the wiring leading to the dynamo light can be completed within the bracket of the free wheel. This eliminates the need for wiring to connect the bracket and the mobile body as in the case where the light is mounted on a mobile body such as a wheeled carrier bed or a handle. In other words, even if the bracket is a free wheel that rotates relative to the moving body each time the direction is changed, the light is turned on using the dynamo provided on the wheel without worrying about disconnection of the wiring. Can do.

[0135] In the universal wheel mounted on the wheeled moving body according to the present invention, the wheel body is configured to be recessed from one end side to the one end side in the traveling rotational axis direction. The dynamo is formed in a donut shape that is stored in the dynamo storage unit.

[0136] Therefore, the dynamo storage part is formed using the donut-shaped space existing between the boss part at the center of the wheel body and the rim part on the outer periphery of the wheel body, and the dynamo is configured in a donut shape so as to fit in the dynamo storage part By doing so, the entire wheel having the dynamo can be made compact.

[0137] For the universal wheel mounted on the wheeled moving body according to the present invention, the dynamo further includes a stator support member for fixing the stator portion to the bracket, and the light is attached to the stator support member. It is characterized by being fixedly attached.

Accordingly, if the stator portion and the stator support member are fixedly coupled to form a unit, for example, the wiring leading to the dynamocalite can be completed within the unit. For this reason, even if it is difficult to attach the light to the bracket or to carry the wiring along the bracket, the light is turned on using the dynamo provided on the wheel as the power supply source. Can be easily achieved.

[0139] In the free wheel mounted on the wheeled moving body according to the present invention, at least one of the lights is configured to irradiate the front in the traveling direction of the free wheel.

[0140] Therefore, when a moving body with wheels turns a curve, it is possible to irradiate with a light in advance the direction in which the vehicle is always going to turn corresponding to the direction of the free wheel. For this reason, the visibility at the time of night use is securable by using this own wheel for front wheels, such as a wheelbarrow and a wheelchair which are moving bodies with a wheel.

[0141] Although the present invention has been described as a preferred embodiment in the above description, each term is used for explanation, not for limitation, and departs from the scope and spirit of the present invention. Changes can be made within the scope of the appended claims.

Claims

The scope of the claims

[1] Wheelbarrow wheels mounted on a wheelbarrow,

It has a wheel body and a dynamo,

The wheel body is rotatably attached to a part of the wheelbarrow so that it can run on the ground,

The wheelbarrow wheel is characterized in that the dynamo is configured to generate power when the wheel body is rolling.

[2] The wheelbarrow wheel according to claim 1,

The dynamo includes a stator portion having a coil portion and a rotor portion having a magnet that rotates with respect to the stator portion,

The wheelbarrow wheel further includes a fixing portion that fixes the rotor portion to a wheel body.

[3] The wheelbarrow wheel according to claim 2,

The wheel body includes a dynamo storage portion having a donut-shaped storage recess configured to be recessed from the one end side on one end side in the axial direction,

The dynamo is formed in a donut shape that is accommodated in the dynamo accommodating portion, the rotor portion is provided with an abutting portion that abuts an inner bottom wall constituting the dynamo accommodating portion, and the fixing portion has a press-in hole. It has a ring-shaped push nut,

When the boss portion of the dynamo storage portion is pushed into the insertion hole, the push nut presses the contact portion of the rotor portion against the inner bottom wall of the dynamo storage portion and fixes the rotor portion to the wheel body. It is characterized by.

[4] A wheelbarrow wheel according to claim 3,

The dynamo storage unit includes an opening for storing the dynamo, the dynamo further includes a stator support member,

The stator support member includes a cylindrical portion that supports the stator portion, and a covering portion on one end side in the axial direction of the cylindrical portion,

As for the said coating | coated part, the inner surface facing the said stator part supported by the said cylindrical part enters inside from the opening part of the said dynamo accommodating part which accommodated the said stator part and the said rotor part. And closing the opening.

[5] A wheelbarrow having a wheelbarrow wheel, characterized in that the wheelbarrow wheel according to any one of claims 1 to 4 is provided.

[6] A universal wheel mounted on a wheeled vehicle,

The wheel body,

A bracket that holds the wheel body so as to be able to run and rotate, and is rotatably held on a moving body with wheels around an axis substantially orthogonal to the running rotation axis of the wheel body;

A dynamo having a stator portion having a coil portion and a mouth portion having a magnet rotating with respect to the stator portion;

A light electrically connected to the dynamo;

With

The rotor part is fixedly attached to the wheel body,

The universal wheel, wherein the stator portion and the light are fixedly attached to a bracket.

[7] The universal wheel according to claim 6,

The wheel body includes a dynamo storage portion having a donut-shaped storage recess configured to be recessed from one end side on one end side in the traveling rotation axis direction,

The dynamo is formed in a donut shape stored in the dynamo storage unit.

[8] The universal wheel according to claim 6,

The dynamo further includes a stator support member for fixing the stator portion to the bracket,

The light is fixedly attached to the stator support member;

It is characterized by.

[9] The universal wheel according to claim 6,

At least one of the lights is configured to illuminate a forward direction of travel of the free wheel,

It is characterized by. A movable body with wheels having a universal wheel, comprising the universal wheel according to claim 6.