JP2001278165A - Wheel mounting part structure for small electric car - Google Patents
Wheel mounting part structure for small electric carInfo
- Publication number
- JP2001278165A JP2001278165A JP2000093321A JP2000093321A JP2001278165A JP 2001278165 A JP2001278165 A JP 2001278165A JP 2000093321 A JP2000093321 A JP 2000093321A JP 2000093321 A JP2000093321 A JP 2000093321A JP 2001278165 A JP2001278165 A JP 2001278165A
- Authority
- JP
- Japan
- Prior art keywords
- frame portion
- vehicle body
- frame
- vehicle
- small electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K2204/00—Adaptations for driving cycles by electric motor
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
- Automatic Cycles, And Cycles In General (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
- Body Structure For Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、車体の左右両輪に
対してクッションばねを取り付けてある小型電動車の車
輪取付け部構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel mounting structure of a small electric vehicle in which cushion springs are mounted on both right and left wheels of a vehicle body.
【０００２】[0002]
【従来の技術】従来の小型電動車では、例えば実開平６
−８１８７４号公報に記載されているように、左右輪を
支持する一本の車軸を、車体フレームに上下揺動自在に
設けた支持フレームに支持させるとともに、この支持フ
レームと車体フレームとにわたってクッションばねを取
付けることにより、左右輪に弾衛機能が備えられてい
た。2. Description of the Prior Art In a conventional small electric vehicle, for example,
As described in JP-A-81874, a single axle supporting left and right wheels is supported by a support frame provided to be vertically swingable on a vehicle body frame, and a cushion spring is provided between the support frame and the vehicle body frame. By installing the, the left and right wheels were equipped with an ammunition function.
【０００３】[0003]
【発明が解決しようとする課題】上記した従来のもので
あると、左右の両輪を１本の車軸で支持しており、左右
車輪の一方が昇降する際の動きが他方の車輪に影響して
弾衛機能が低下しがちであった。In the prior art described above, both the left and right wheels are supported by one axle, and the movement when one of the left and right wheels goes up and down affects the other wheel. The missile function tended to decrease.
【０００４】本発明の目的は、左右輪に良好なクッショ
ン性を備えさせるとともに、軽量化できるようにした
り、構造の簡略化ができるようにすることにある。[0004] It is an object of the present invention to provide the left and right wheels with good cushioning properties, to reduce the weight, and to simplify the structure.
【０００５】[0005]
【課題を解決するための手段】〔構成〕本発明の請求項
１にかかる特徴構成は、小型電動車の車輪取付け部構造
において、車体両横側の車体フレーム先端部に、車体前
後向きの上辺フレーム部と、車体前後向きの下辺フレー
ム部と、前記上辺フレーム部と前記下辺フレーム部とを
連結する車体上下向きの連結フレーム部とを備えさせ、
前記車体左側の車体フレーム先端部において、前記下辺
フレーム部に左車軸を車体前後向き軸芯のまわりで上下
揺動自在に支持させるとともに、前記上辺フレーム部と
前記左車軸とにわたってクッションばねを取付け、前記
車体右側の車体フレーム先端部において、前記下辺フレ
ーム部に右車軸を車体前後向き軸芯のまわりで上下揺動
自在に支持させるとともに、前記上辺フレーム部と前記
右車軸とにわたってクッションばねを取付けた点にあ
る。According to a first aspect of the present invention, there is provided a wheel mounting portion structure for a small electric vehicle, in which a front end of a vehicle body frame on both lateral sides of the vehicle body is provided. A frame portion, a lower frame portion facing the vehicle front and rear, and a vehicle body vertical connecting frame portion connecting the upper frame portion and the lower frame portion,
At the front end of the vehicle body frame on the left side of the vehicle body, the lower frame portion supports the left axle vertically swingably around the vehicle longitudinal axis, and a cushion spring is attached across the upper frame portion and the left axle, At the front end of the vehicle body frame on the right side of the vehicle body, a right axle is supported on the lower frame so as to be vertically swingable around a longitudinal axis of the vehicle body, and a cushion spring is attached between the upper frame and the right axle. On the point.
【０００６】〔作用〕つまり、左右の車輪に対する各々
別の車軸を下辺フレーム部に揺動自在に連結するととも
に、それぞれの車軸と上辺フレーム部との間にクッショ
ンばねを取り付けることによって、左右の車軸が独立し
て昇降して左右車輪の一方の動きが他方に影響しにくい
ようにしながら左右車輪にクッションばねを作用させら
れる。左右車輪を支持するように先端部が下辺フレーム
部と上辺フレーム部と連結フレーム部とで成り、フレー
ムを軽量化しながら、左右両輪を所望の支持強度で支持
させられる。[Operation] In other words, separate axles for the left and right wheels are swingably connected to the lower frame portion, and a cushion spring is attached between each axle and the upper frame portion. Can be independently moved up and down so that the movement of one of the left and right wheels is unlikely to affect the other, and the cushion springs can act on the left and right wheels. The front end portion is composed of a lower frame portion, an upper frame portion, and a connection frame portion so as to support the left and right wheels, so that the left and right wheels can be supported with desired support strength while reducing the weight of the frame.
【０００７】〔効果〕よって、左右両輪の一方が障害物
に乗り上がるとか凹部に入り込むとかがあっても他方に
影響を与えないで昇降して緩衛するような良好なクッシ
ョン性を備えていて快適に運転できる。しかも、車輪を
強固に支持させられる割には、車体フレームが軽量で取
扱いなどが楽にできるように軽量化できた。[Effects] Therefore, even if one of the left and right wheels rides on an obstacle or enters a recess, it has a good cushioning property such that it goes up and down and relaxes without affecting the other. I can drive comfortably. In addition, although the wheels can be firmly supported, the weight was reduced so that the body frame was lightweight and easy to handle.
【０００８】〔構成〕本発明の請求項２にかかる特徴構
成は、請求項１に記載のものにおいて、前記上辺フレー
ム部と前記下辺フレーム部と前記連結フレーム部とを、
折り曲げ成形した１本のフレーム材によって形成した点
にある。[Structure] According to a second aspect of the present invention, in the first aspect, the upper frame portion, the lower frame portion, and the connection frame portion are connected to each other.
The point is that it is formed by one bent frame member.
【０００９】〔作用〕つまり、車体フレームに上辺フレ
ーム部と、下辺フレーム部と、連結フレーム部とでなる
車体フレームを屈曲形成した一本の車体フレームによっ
て軽量に、安価に得られる。[Operation] In other words, it is possible to obtain a lightweight and inexpensive vehicle body frame by bending a vehicle body frame including an upper frame portion, a lower frame portion and a connecting frame portion.
【００１０】〔効果〕よって、軽量でありながら車軸を
強固に支持する車体フレームをより軽量に、かつ安価に
得てなお一層の軽量化ができるとともに、コストダウン
できる。[Effect] Therefore, a lighter and less expensive vehicle body frame that firmly supports the axle while being lightweight can be further reduced in weight and cost.
【００１１】〔構成〕本発明の請求項３にかかる特徴構
成は、請求項１或は２に記載のものにおいて、車体左側
の前記下辺フレーム部と車体右側の前記下辺フレーム部
とを連結する支持フレームを備えるとともに、前記左右
車軸を前記支持フレームを介して前記下辺フレーム部に
支持させた点にある。[Structure] According to a third aspect of the present invention, in the first or second aspect, a support for connecting the lower frame portion on the left side of the vehicle body and the lower frame portion on the right side of the vehicle body is provided. A frame is provided, and the left and right axles are supported by the lower frame portion via the support frame.
【００１２】〔作用〕つまり、車軸を支持フレームを介
し下辺フレーム部に取り付けることで、車軸を支持させ
る位置を支持フレーム上で任意に選択することができ
る。トレッドの割には車輪の昇降支点から接地点までの
距離が長くなって車輪の昇降ストロークを大にできる。
左右の下辺フレーム部が支持フレームで連結されて、車
体フレームの強度がアップする。[Operation] That is, by attaching the axle to the lower frame portion via the support frame, the position where the axle is supported can be arbitrarily selected on the support frame. The distance from the lifting fulcrum of the wheel to the ground contact point is longer than the tread, and the lifting stroke of the wheel can be increased.
The left and right lower frame portions are connected by a support frame, thereby increasing the strength of the body frame.
【００１３】〔効果〕よって、トレッドの割には車輪の
昇降ストロークが大になってクッション性がアップす
る。支持フレームを連結フレーム部に利用した簡単な構
造で左右の下辺フレーム部を連結して強度アップでき
る。[Effect] Therefore, the up-and-down stroke of the wheel is large for the tread, and the cushioning property is improved. With a simple structure using the supporting frame as the connecting frame portion, the lower right and left frame portions can be connected to increase the strength.
【００１４】[0014]
【発明の実施の形態】本発明の実施の形態を図面に基づ
いて説明する。図１及び図２に、小型電動車の一例であ
る４輪式の小型電動車を示している。この小型電動車
は、操縦ハンドル１で操向操作される左右一対の前車輪
１１，１１と、電動モータ３で駆動される左右一対の後
車輪４，４とを有する車体フレーム５に、搭乗用の座席
６、バッテリー７、制御装置８等を装備して構成してい
る。Embodiments of the present invention will be described with reference to the drawings. FIGS. 1 and 2 show a four-wheeled small electric vehicle, which is an example of a small electric vehicle. This small electric vehicle is mounted on a body frame 5 having a pair of left and right front wheels 11, 11 steered by a steering handle 1 and a pair of left and right rear wheels 4, 4 driven by an electric motor 3. , A battery 6, a control device 8, and the like.
【００１５】前記車体フレーム５の車体前方側での車体
両横側における先端部を図３、図４に示す如く形成して
ある。すなわち、車体前後方向に沿う方向の下辺フレー
ム部５Ｌと、車体前後方向に沿う上辺フレーム部５Ｈ
と、上辺フレーム部５Ｈと下辺フレーム部５Ｌとの前端
部同士を連結するとともに、車体上下方向に沿う方向の
連結フレーム部５ＭとからなるＵ字状に形成してある。
この車体フレーム５前部の上辺フレーム部５Ｈと下辺フ
レーム部５Ｌと連結フレーム部５Ｍとは、一本のフレー
ム材を屈曲させて作成してある。The front end of the vehicle body frame 5 on both sides of the vehicle body at the front side of the vehicle body is formed as shown in FIGS. That is, the lower frame portion 5L in the vehicle longitudinal direction and the upper frame portion 5H in the vehicle longitudinal direction.
And the front end portions of the upper side frame portion 5H and the lower side frame portion 5L are connected to each other, and are formed in a U-shape including a connection frame portion 5M extending in the vertical direction of the vehicle body.
The upper frame portion 5H, the lower frame portion 5L, and the connecting frame portion 5M of the front portion of the body frame 5 are formed by bending one frame member.
【００１６】次に前車軸の支持構造について説明する。
図３及び図４に示すように、前記車体フレーム５に、左
右の上辺フレーム部５Ｈを連結するハンドル支持台９を
備えるとともに、左右の下辺フレーム部５Ｌを連接する
支持フレーム１０を備えてある。そして、左右前輪１１
を格別に支持する一対の車軸１２を、支持フレーム１０
の前後一対の支持部１０ａで車体前後向きの軸芯周りで
揺動自在に支持するとともに、車軸１２の遊端側のボス
部１２ａにはキングピン１９を回動自在に設けられてお
り、この車軸１２の中間部と前記上辺フレーム部５Ｈと
の間にはクッションばね１３が取り付けている。よっ
て、左右の前輪１１は、それぞれ独立して揺動昇降し、
クッションばねを弾性変位させながら上昇する。Next, the support structure for the front axle will be described.
As shown in FIGS. 3 and 4, the vehicle body frame 5 includes a handle support 9 for connecting the left and right upper frame portions 5H and a support frame 10 for connecting the left and right lower frame portions 5L. And the left and right front wheels 11
A pair of axles 12 for supporting the
A pair of front and rear support portions 10a are supported swingably around a longitudinal axis of the vehicle body, and a king pin 19 is rotatably provided on a boss portion 12a on the free end side of the axle 12. A cushion spring 13 is attached between the middle portion of the frame 12 and the upper frame portion 5H. Therefore, the left and right front wheels 11 swing up and down independently,
It rises while elastically displacing the cushion spring.
【００１７】前記上辺フレーム部５Ｈを連結しているハ
ンドル支持台９の後端側には、前記操縦ハンドル１のハ
ンドルシャフト１４を支持するハンドル軸受け１５が付
設されている。そして、前記ハンドルシャフト１４の下
端部にピットマンアーム１６を、右前輪１１のキングピ
ン１９にナックルアーム１７とタイロッドアーム１８と
を、左前輪１１のキングピン１９にタイロッドアーム１
８をそれぞれ一体回動自在に設け、ピットマンアーム１
６とナックルアーム１７とをリンク材２０によって連結
し、左右のタイロッドアーム１８をタイロッド２１によ
って連結してある。A handle bearing 15 for supporting the handle shaft 14 of the steering handle 1 is attached to the rear end of the handle support 9 connecting the upper frame 5H. The pitman arm 16 is provided at the lower end of the handle shaft 14, the knuckle arm 17 and the tie rod arm 18 are provided on the king pin 19 of the right front wheel 11, and the tie rod arm 1 is provided on the king pin 19 of the left front wheel 11.
8 are provided so as to be rotatable together, and the pitman arm 1
6 and the knuckle arm 17 are connected by a link member 20, and the left and right tie rod arms 18 are connected by a tie rod 21.
【００１８】つまり、操縦ハンドル１を回転操作するこ
とで、ハンドルシャフト１４が回動してピットマンアー
ム１６が揺動操作され、ピットマンアーム１４の揺動は
リンク材２０を介してナックルアーム１７に伝えられて
右前輪１１のキングピン１９が回動し、さらにタイロッ
ド２１及びタイロッドアーム１８を介して左前輪１１の
キングピン１９に伝えられてこのキングピン１９が回動
し、左右それぞれの前輪１１に梶取り角を与えて操向操
作するように構成してある。That is, when the steering handle 1 is rotated, the handle shaft 14 is rotated to swing the pitman arm 16, and the swing of the pitman arm 14 is transmitted to the knuckle arm 17 via the link member 20. As a result, the king pin 19 of the right front wheel 11 is rotated, and further transmitted to the king pin 19 of the left front wheel 11 via the tie rod 21 and the tie rod arm 18, and the king pin 19 is rotated. And the steering operation is performed.
【００１９】〔別実施例〕車体フレーム５に上辺フレー
ム部５Ｈ、下辺フレーム部５Ｌを備えさせるのに、車体
フレーム部５の上方、或は下方に別部材を付設して、こ
の別部材を上辺フレーム部５Ｈ、或は下辺フレーム部５
Ｌとしてもよい。また、車体フレーム５のうち、上辺フ
レーム部１１Ｈを有するフレーム部分が車体前後方向に
長く、下辺フレーム部１１Ｌを有するフレーム部分が短
くなるように屈曲形成しても良い。[Other Embodiment] In order to provide the body frame 5 with the upper frame portion 5H and the lower frame portion 5L, another member is provided above or below the body frame portion 5, and this separate member is attached to the upper side. Frame part 5H or lower side frame part 5
It may be L. Further, of the vehicle body frame 5, the frame portion having the upper frame portion 11H may be bent so as to be longer in the vehicle front-rear direction, and the frame portion having the lower frame portion 11L becomes shorter.
【００２０】上記実施の形態、及び別実施の形態では、
本願発明の構成を４輪式小型電動車のステアリング輪で
ある前輪に採用したが、後輪であっても良く、また３輪
式の小型電動車であってもよく、また非ステアリング輪
であってもよい。つまり、小型電動車の左右一対の車輪
であればよいものである。In the above embodiment and another embodiment,
Although the configuration of the present invention is applied to the front wheels, which are the steering wheels of a four-wheeled small electric vehicle, it may be rear wheels, a three-wheeled small electric vehicle, or non-steering wheels. You may. In other words, it suffices to use a pair of left and right wheels of the small electric vehicle.
【００２１】尚、前記車体フレームをＵ字状に形成する
ことで得た機体前方に凸する状態の連結フレーム部５Ｍ
を、バンパーとして用いてもよい。Incidentally, the connecting frame portion 5M which is obtained by forming the vehicle body frame into a U-shape and which protrudes forward from the body.
May be used as a bumper.
【図１】小型電動車の側面図FIG. 1 is a side view of a small electric vehicle.
【図２】小型電動車の平面図FIG. 2 is a plan view of a small electric vehicle.
【図３】前車輪の車軸取付部の構造を示す縦断前面図FIG. 3 is a longitudinal sectional front view showing a structure of an axle mounting portion of a front wheel.
【図４】前車輪の車軸取付部の構造を示す縦断側面図FIG. 4 is a longitudinal sectional side view showing a structure of an axle mounting portion of a front wheel.
５ 車体フレーム ５Ｈ 上辺フレーム部 ５Ｍ 連結フレーム部 ５Ｌ 下辺フレーム部 １０ 支持フレーム １２ 車軸 １３ クッションばね Reference Signs List 5 Body frame 5H Upper frame portion 5M Connecting frame portion 5L Lower frame portion 10 Support frame 12 Axle 13 Cushion spring
Claims (3)
体前後向きの上辺フレーム部と、車体前後向きの下辺フ
レーム部と、前記上辺フレーム部と前記下辺フレーム部
とを連結する車体上下向きの連結フレーム部とを備えさ
せ、前記車体左側の車体フレーム先端部において、前記
下辺フレーム部に左車軸を車体前後向き軸芯のまわりで
上下揺動自在に支持させるとともに、前記上辺フレーム
部と前記左車軸とにわたってクッションばねを取付け、
前記車体右側の車体フレーム先端部において、前記下辺
フレーム部に右車軸を車体前後向き軸芯のまわりで上下
揺動自在に支持させるとともに、前記上辺フレーム部と
前記右車軸とにわたってクッションばねを取付けてある
小型電動車の車輪取付け部構造。1. An upper frame portion facing the vehicle front and rear, a lower frame portion facing the vehicle front and rear, and a vehicle body vertical direction connecting the upper frame portion and the lower frame portion to a front end portion of the vehicle body frame on both lateral sides of the vehicle body. A connection frame portion, and at the front end portion of the vehicle body frame on the left side of the vehicle body, the lower frame portion supports a left axle so as to be vertically swingable around a longitudinal axis of the vehicle body, and the upper frame portion and the Install a cushion spring over the left axle,
At the front end of the vehicle body frame on the right side of the vehicle body, a lower axle is supported on the lower frame so that the right axle can swing up and down around a vehicle longitudinal axis, and a cushion spring is attached to the upper frame and the right axle. Wheel mounting structure of a small electric vehicle.
部と前記連結フレーム部とを、折り曲げ成形した１本の
フレーム材によって形成してある請求項１記載の小型電
動車の車輪取付け部構造。2. The wheel mounting part structure for a small electric vehicle according to claim 1, wherein the upper frame part, the lower frame part, and the connection frame part are formed by one frame material formed by bending.
側の前記下辺フレーム部とを連結する支持フレームを備
えるとともに、前記左右車軸を前記支持フレームを介し
て前記下辺フレーム部に支持させてある請求項１又は２
記載の小型電動車の車輪取付け部構造。3. A support frame for connecting the lower frame portion on the left side of the vehicle body with the lower frame portion on the right side of the vehicle body, and the left and right axles are supported by the lower frame portion via the support frame. Item 1 or 2
The wheel mounting part structure of the small electric vehicle according to the description.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000093321A JP3590322B2 (en) | 2000-03-30 | 2000-03-30 | Wheel mounting structure of small electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000093321A JP3590322B2 (en) | 2000-03-30 | 2000-03-30 | Wheel mounting structure of small electric vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001278165A true JP2001278165A (en) | 2001-10-10 |
| JP3590322B2 JP3590322B2 (en) | 2004-11-17 |
Family
ID=18608518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000093321A Expired - Fee Related JP3590322B2 (en) | 2000-03-30 | 2000-03-30 | Wheel mounting structure of small electric vehicle |
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| Country | Link |
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| JP (1) | JP3590322B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7457612B2 (en) | 2002-11-18 | 2008-11-25 | Nec Corporation | Wireless communication system and method of making wireless communication |
| CN102849164A (en) * | 2012-09-19 | 2013-01-02 | 平湖市好儿喜车业有限公司 | Baby carriage |
| CN103979470A (en) * | 2014-05-19 | 2014-08-13 | 安徽昌永得机械有限公司 | High-altitude operation car frame |
-
2000
- 2000-03-30 JP JP2000093321A patent/JP3590322B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7457612B2 (en) | 2002-11-18 | 2008-11-25 | Nec Corporation | Wireless communication system and method of making wireless communication |
| CN102849164A (en) * | 2012-09-19 | 2013-01-02 | 平湖市好儿喜车业有限公司 | Baby carriage |
| CN103979470A (en) * | 2014-05-19 | 2014-08-13 | 安徽昌永得机械有限公司 | High-altitude operation car frame |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3590322B2 (en) | 2004-11-17 |
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