JPS62103201A - Shock-absorbing construction of cast wheel - Google Patents

Shock-absorbing construction of cast wheel

Info

Publication number
JPS62103201A
JPS62103201A JP60242966A JP24296685A JPS62103201A JP S62103201 A JPS62103201 A JP S62103201A JP 60242966 A JP60242966 A JP 60242966A JP 24296685 A JP24296685 A JP 24296685A JP S62103201 A JPS62103201 A JP S62103201A
Authority
JP
Japan
Prior art keywords
rim
bulge
hub
drum
cast wheel
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
Application number
JP60242966A
Other languages
Japanese (ja)
Other versions
JP2544601B2 (en
Inventor
Masanori Torii
政徳 鳥井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP60242966A priority Critical patent/JP2544601B2/en
Publication of JPS62103201A publication Critical patent/JPS62103201A/en
Application granted granted Critical
Publication of JP2544601B2 publication Critical patent/JP2544601B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Axle Suspensions And Sidecars For Cycles (AREA)

Abstract

PURPOSE:To suppress increase of the weight and/or cost by allowing the central part of a hub in the width direction to bulge out toward the periphery into a ring form, coupling this bulge with a rim through a plate-shaped spoke, and thereby relieving shocks which the rim may receive, through deformation of said bulge. CONSTITUTION:A cast wheel 4 used for a larger motorcycle etc. consists of a drum 42 with a comparatively great dia. hub 41, end plates 43, 44 for shutting both ends of said drum 42, and a boss 45 furnished at the cores of these end plates 43, 44. A disk-shaped spoke 46 is continuously installed at the periphery of said drum 42,and the outside edge 50 of this spoke is connected to a rim 50. In this construction, the drum 42 bulges out to form a ridge throughout the outside circumference of the central part in the width direction, and the plate-shaped spoke 46 is continuously installed at the top of this bulge 62. Recess is formed at the rear surface 63 of the bulge 62 so that the wall thickness of the above-mentioned drum 42 will not become uneven. This provides shock absorption for the rim 50 when it is going to receive shocks, through deformation of the bulge 62.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は主として大型の自動二輪車に用いられる鋳造
車輪に関するもので、特に車両が地上の凹凸面を通過す
る際、車輪に加えられる衝撃の影響を緩和するための緩
衝構造に関する。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to cast wheels used primarily for large motorcycles, and particularly relates to the effects of impact applied to the wheels when the vehicle passes over uneven surfaces on the ground. This invention relates to a buffer structure for alleviating problems.

〔従来の技術、その問題点〕[Conventional technology and its problems]

従来、自動二輪車の鋳造車輪は、タイヤを介して車輪に
加えられる衝撃を可及的に緩和すべくスポーク自体を弧
状に湾曲させたｐ１スポークの軸線を車軸中心より外方
にオフセットさせることによ）、スポーク自体を変形さ
せることが行われている（例えば、特開昭５９−１４３
７２２号、特開昭５８−１２８０１号或いは特開昭６０
−２９３０１号公報等）０ 然しなから、デザイン上の要求から円板状のスポークを
採用せんとするときには、上記スポークによる緩衝効果
が期待出来なくなるため、ノ・プやスポークに大きな設
計強度が必要となシ、車輪の自体の重量や製造コストの
増加を招く不具合がある０ 〔発明の目的、問題を解決する手段の概要〕この発明は
上記不具合を解消することを目的とするもので、リムと
ハブとの間を円板状の板材で構成したスポークで構成す
るものにおいて、前記ハブの幅方向中央部を外周方向へ
環状に膨出させ、その膨出部とリムとを板状のスポーク
で連結した点に特徴がある。Conventionally, cast wheels for motorcycles have been manufactured by offsetting the axis of the P1 spoke, which is curved in an arc, outward from the center of the axle in order to reduce as much as possible the impact applied to the wheel through the tire. ), deforming the spokes themselves (for example, Japanese Patent Application Laid-Open No. 59-143
No. 722, JP-A-58-12801 or JP-A-60
-29301 Publication, etc.) 0 However, when it is decided to use disc-shaped spokes due to design requirements, the cushioning effect of the spokes cannot be expected, so large design strength is required for the knobs and spokes. However, there is a problem that increases the weight of the wheel itself and the manufacturing cost. and a hub, in which a center portion in the width direction of the hub is annularly bulged in the outer circumferential direction, and the bulge and the rim are connected to the plate-shaped spoke. It is characterized by the points connected by .

〔作用〕[Effect]

リムが受ける衝撃は円板状の板材で構成したスポークを
経て、ハブの幅方向中央部に至り、これを弾性変形させ
ることによって緩衝し、車体フレームに連なる車軸へ与
える衝撃を減する。The impact that the rim receives passes through the spokes, which are made of disc-shaped plates, and reaches the widthwise center of the hub, which is elastically deformed to buffer the impact and reduce the impact on the axle connected to the vehicle body frame.

〔実施例〕〔Example〕

以下、図示の実施例によってこの発明を説明すると、図
中、１は自動二輪車であシ、その車体フレーム２の前端
には前フオーク３を介して前輪４が、また後部にはリヤ
アーム５を介して後輪６がそれぞれ支持されている。７
は車体フレーム２に支持されたエンジンであシ、チェー
ン８を介して後輪６を駆動するようになっている。こ＼
で、前後の車輪４．６は少なくともノ・プ、リムおよび
それらを結合するスポークとをアルミニウム合金によっ
て一体に鋳造した後、機械加工して作られた鋳造車輪で
ある。The present invention will be explained below with reference to the illustrated embodiment. In the figure, 1 is a motorcycle, and a front wheel 4 is connected to the front end of a body frame 2 through a front fork 3, and a rear arm 5 is connected to the rear end of the vehicle body frame 2. The rear wheels 6 are supported respectively. 7
An engine is supported on the body frame 2 and drives the rear wheels 6 via a chain 8. child\
The front and rear wheels 4.6 are cast wheels made by integrally casting at least a knob, a rim, and spokes that connect them with an aluminum alloy, and then machining the resultant wheel.

前輪４と後輪６とを図面にしたがって説明すれば、第２
図および第３図中、４１はハブであシ、比較的大径の円
胴部４２とその両端を閉じる端板４３．４４および両端
板の芯部に設けられたボス４５とからなっている。４６
は円胴部４２の外周に連設された円板状のスポークであ
）、その外周縁はリム５０に接続されている。４８は円
板状のスポーク４６に鋳抜かれた透孔である。５２は内
接孔、５４は円胴部４２の両端に設けられた図示してな
いブレーキ円板の取付部、５６はそのボルト孔である。If the front wheel 4 and the rear wheel 6 are explained according to the drawing, the second
In the figures and FIG. 3, 41 is a hub, which is composed of a relatively large-diameter cylindrical portion 42, end plates 43, 44 that close both ends of the cylindrical portion 42, and a boss 45 provided at the core of both end plates. . 46
are disk-shaped spokes that are connected to the outer periphery of the circular trunk portion 42), and the outer periphery of the spokes is connected to the rim 50. Reference numeral 48 denotes a through hole cast into the disc-shaped spoke 46. 52 is an inscribed hole, 54 is a mounting portion for a brake disk (not shown) provided at both ends of the cylindrical portion 42, and 56 is a bolt hole thereof.

５Ｂはリムの内周に設けた補強リブである。なお、後述
する後輪６においてはブレーキ円板の取付部５２に代え
て、ドラムブレーキのブレーキドラム５５が設けられて
いる。5B is a reinforcing rib provided on the inner circumference of the rim. Note that in the rear wheel 6, which will be described later, a brake drum 55 of a drum brake is provided in place of the brake disc mounting portion 52.

と＼で、前記ハブの円胴部４２は幅方向中央部が全周に
亘って外周方向へ山形に膨出しており、その膨出部６２
の頂部に板状のスポーク４６が連接されている。なお、
膨出部６２の裏面６３には窪みが設けられ、円胴部４２
の肉厚が不均一にならないようにしである。and \, the cylindrical portion 42 of the hub has a central portion in the width direction that bulges in a chevron shape toward the outer circumference over the entire circumference, and the bulged portion 62
A plate-shaped spoke 46 is connected to the top of the plate. In addition,
A depression is provided on the back surface 63 of the bulging portion 62, and the cylindrical portion 42
This is to prevent the wall thickness from becoming uneven.

後輪６の構成も基本的に前輪４の構成と異ならないので
、第４図および第５図に前輪４の対応する符号を付して
その説明を省略する。Since the configuration of the rear wheel 6 is basically the same as the configuration of the front wheel 4, the corresponding reference numerals of the front wheel 4 are given in FIGS. 4 and 5, and the explanation thereof will be omitted.

したがって、車両が地上の凹凸上を走行し、リム５０に
上下方向の衝撃を受けたとき、その衝撃は板状のスポー
ク４６を通してハブの円胴部４２に設けられた膨出部６
０へ伝達され、第３図中、二点鎖線Ａで示すように内側
へ変形するので、その衝撃が緩和されて車体側へ伝えら
れる。Therefore, when the vehicle travels on uneven ground and receives a vertical impact on the rim 50, the impact passes through the plate-shaped spokes 46 to the bulges 6 provided on the cylindrical portion 42 of the hub.
0 and deforms inward as shown by the two-dot chain line A in FIG. 3, so that the impact is alleviated and transmitted to the vehicle body.

〔発明の効果〕〔Effect of the invention〕

この発明は以上のように、ハブの幅方向中央部を外周方
向へ環状に膨出させ、リムが衝撃を受けたとき、との膨
出部を変形させて車輪自体の弾性により緩衝するもので
あるから、スポークが円板状で比較的間（ｊ性の高いも
のでちっても、比較的容易に緩衝作用を生じさせること
ができる効果を奏する。As described above, in this invention, the center part of the hub in the width direction bulges out in an annular shape toward the outer periphery, and when the rim receives an impact, the bulge part is deformed and the elasticity of the wheel itself cushions the rim. Therefore, even if the spokes are disc-shaped and have a relatively high spacing (J property), it is possible to produce a buffering effect relatively easily.

【図面の簡単な説明】[Brief explanation of drawings]

図面はこの発明の実施例を示すもので、第１図は自動二
輪車の側面図、第２図はその前輪を示す一部を截断した
正面図、第３図はその■−■断面図、第４図は後輪を示
す一部を截断した正面図、第５図はそのｖ−■断面図で
ある。 ４・・・・前輪、６・・・・後輪、４１・・・・ハブ、
４２・φ・・円胴部、４６・・・・円板状のスポーク、
５０・・−・リム、５８・・・・補強リプ、６０・・・
・膨出部。The drawings show an embodiment of the present invention, and FIG. 1 is a side view of the motorcycle, FIG. 2 is a partially cutaway front view showing the front wheel, and FIG. 3 is a sectional view taken along FIG. 4 is a partially cutaway front view showing the rear wheel, and FIG. 5 is a cross-sectional view taken along line v-■. 4...Front wheel, 6...Rear wheel, 41...Hub,
42・φ・・Cylinder part, 46・・・・Disc-shaped spoke,
50...Rim, 58...Reinforcement lip, 60...
・Bulge.

Claims (5)

【特許請求の範囲】[Claims] （１）リムとハブとの間を円板状の板材で構成したスポ
ークで連結するものにおいて、前記ハブの幅方向中央部
を外周方向へ環状に膨出させ、その膨出部とリムとを板
状のスポークで連結してなる鋳造車輪の緩衝構造。(1) In a device in which a rim and a hub are connected by spokes made of disc-shaped plate materials, the center portion of the hub in the width direction bulges out in an annular shape toward the outer circumference, and the bulge portion and the rim are connected. A cushioning structure for cast wheels connected by plate-shaped spokes. （２）前記円板状のスポークには略同一円周上に数個の
肉抜き窓が設けられている特許請求の範囲第１項記載の
鋳造車輪の緩衝構造。(2) The shock absorbing structure for a cast wheel according to claim 1, wherein the disc-shaped spoke is provided with several lightening windows on substantially the same circumference. （３）鋳造車輪は軽合金によつて作られている特許請求
の範囲第１項記載の鋳造車輪の緩衝構造。(3) A buffer structure for a cast wheel according to claim 1, wherein the cast wheel is made of a light alloy. （４）ハブは幅方向の両端部に設けた端板を介して車軸
が貫通するボスに連結されている特許請求の範囲第１項
記載の鋳造車輪の緩衝構造。(4) The shock absorbing structure for a cast wheel according to claim 1, wherein the hub is connected to a boss through which the axle passes through end plates provided at both ends in the width direction. （５）膨出部の裏面は全周に亘つて環状に窪ませ、ハブ
側の肉厚を略均一に形成してなる特許請求の範囲第１項
記載の鋳造車輪の緩衝構造。(5) The shock absorbing structure for a cast wheel as set forth in claim 1, wherein the back surface of the bulging portion is annularly depressed over the entire circumference, and the wall thickness on the hub side is made substantially uniform.
JP60242966A 1985-10-31 1985-10-31 Cushion wheel cushioning structure Expired - Fee Related JP2544601B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60242966A JP2544601B2 (en) 1985-10-31 1985-10-31 Cushion wheel cushioning structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60242966A JP2544601B2 (en) 1985-10-31 1985-10-31 Cushion wheel cushioning structure

Publications (2)

Publication Number Publication Date
JPS62103201A true JPS62103201A (en) 1987-05-13
JP2544601B2 JP2544601B2 (en) 1996-10-16

Family

ID=17096877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60242966A Expired - Fee Related JP2544601B2 (en) 1985-10-31 1985-10-31 Cushion wheel cushioning structure

Country Status (1)

Country Link
JP (1) JP2544601B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0243701U (en) * 1988-09-20 1990-03-26
EP0754570A1 (en) * 1995-07-18 1997-01-22 Honda Giken Kogyo Kabushiki Kaisha Cast wheel
JP2013163519A (en) * 2013-05-27 2013-08-22 Bridgestone Corp Non-pneumatic tire
JP2013163517A (en) * 2013-05-15 2013-08-22 Bridgestone Corp Non-pneumatic tire

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5218648A (en) * 1975-08-02 1977-02-12 Bayerische Motoren Werke Ag Cast spoke wheel for vehicle and specially motor cycle
JPS59145443U (en) * 1983-03-18 1984-09-28 スズキ株式会社 Brake disc attachment device
JPS6061901U (en) * 1983-10-06 1985-04-30 川崎重工業株式会社 Solid wheels for motorcycles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5218648A (en) * 1975-08-02 1977-02-12 Bayerische Motoren Werke Ag Cast spoke wheel for vehicle and specially motor cycle
JPS59145443U (en) * 1983-03-18 1984-09-28 スズキ株式会社 Brake disc attachment device
JPS6061901U (en) * 1983-10-06 1985-04-30 川崎重工業株式会社 Solid wheels for motorcycles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0243701U (en) * 1988-09-20 1990-03-26
EP0754570A1 (en) * 1995-07-18 1997-01-22 Honda Giken Kogyo Kabushiki Kaisha Cast wheel
JP2013163517A (en) * 2013-05-15 2013-08-22 Bridgestone Corp Non-pneumatic tire
JP2013163519A (en) * 2013-05-27 2013-08-22 Bridgestone Corp Non-pneumatic tire

Also Published As

Publication number Publication date
JP2544601B2 (en) 1996-10-16

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