JPH0561121B2 - - Google Patents
Info
- Publication number
- JPH0561121B2 JPH0561121B2 JP2136648A JP13664890A JPH0561121B2 JP H0561121 B2 JPH0561121 B2 JP H0561121B2 JP 2136648 A JP2136648 A JP 2136648A JP 13664890 A JP13664890 A JP 13664890A JP H0561121 B2 JPH0561121 B2 JP H0561121B2
- Authority
- JP
- Japan
- Prior art keywords
- arm
- axis
- tire
- wheel
- roller
- 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.)
- Expired - Lifetime
Links
- 239000011324 bead Substances 0.000 claims description 59
- 238000013459 approach Methods 0.000 claims description 6
- 239000011888 foil Substances 0.000 description 28
- 210000000078 claw Anatomy 0.000 description 24
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
Landscapes
- Tires In General (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はチユーブレスタイヤ用チヤンジヤーに
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a changer for tubeless tires.
ホイル上に横倒状に載置したタイヤをホイルに
装着するチユーブレスタイヤ用チヤンジヤーとし
ては、例えば、ホイルをその軸心廻りに回転させ
つつ、タイヤのビード部をローラにて下方に単に
押圧させて、タイヤをリムに組み込ませるように
したものが一般に知られていた。しかし、このよ
うなものでは、上方のビート部を組み込ませる場
合、第７図に示すように、リムフランジａとロー
ラｂとの間にビード部ｃを噛み込みタイヤｄ内面
のビード寄りを傷付けたり、ホイルの回転が行え
ない状態となる問題があつた。
For example, a tubeless tire changer that attaches a tire placed horizontally on a wheel to the wheel may be used, for example, by simply pressing the bead of the tire downward with a roller while rotating the wheel around its axis. It is generally known that tires are assembled into rims. However, in such a case, when the upper bead part is installed, the bead part c gets caught between the rim flange a and the roller b, damaging the inner surface of the tire d near the bead, as shown in Fig. 7. There was a problem where the wheel could not be rotated.
また、上記以外のものとして、例えば、実公昭
58−53204号に記載のチエンジヤーや、実開昭60
−1604号に記載のチヤンジヤーが公知であつた。
しかし、これらは、タイヤのビード部に沿つてロ
ーラが転動しつつそのビード部を下方へ押圧して
タイヤをリムに組み込ませるようにしたものであ
り、第７図の場合と同様にリムフランジとローラ
との間にビード部を噛み込む虞れや、タイヤ内面
のビード寄りを傷付ける虞れがあつた。 In addition to the above, for example,
The changer described in No. 58-53204, and the
The changer described in No.-1604 was known.
However, in these systems, a roller rolls along the bead of the tire and presses the bead downward to incorporate the tire into the rim, and as in the case of Fig. 7, the rim flange There was a risk that the bead part would get caught between the tire and the roller, and there was a risk of damaging the inner surface of the tire near the bead.
そこで、本発明では、上方ビード及び下方ビー
ド部を確実にリムに組み込ませることができ、し
かも、タイヤ内面を傷付けたり、ホイルの回転が
行えなくなるようなことがないチユーブレスタイ
ヤ用チエンジヤーを提供することを目的とする。 Therefore, the present invention provides a changer for tubeless tires that allows the upper bead and lower bead portions to be reliably incorporated into the rim, and that does not damage the inner surface of the tire or prevent the wheel from rotating. The purpose is to
上述の目的を達成するために、本発明に係るチ
ユーブレスタイヤ用チエンジヤーは、軸心が鉛直
状に配設されるホイルをその軸心廻りに回転自在
として保持するホイル固定台を、備えたチユーブ
レスタイヤ用チエンジヤーにおいて、上下２枚の
水平状保持板を鉛直方向から串挿状として取付け
られる支柱と、基端の円筒部が該支柱の軸心廻り
に回転自在として該支柱に枢着されと共に水平軸
心廻りに遊転自在なローラを先端部に有する水平
状の第１アームと、基端の円筒部が上記支柱の軸
心廻りに回転自在として該支柱に枢着されると共
に下方に垂設されるビード係止片部を先端部に有
する水平状の第２アームと、上記保持板を上下方
向に移動させる昇降機構と、上記保持板を上記ホ
イルの半径方向に移動させる前後後退機構と、を
備え、さらに、上記ホイル上に横倒状に載置され
たタイヤの上方ビード部に上方から上記ローラが
接近する回転位置に、上記第１アームを停止する
第１アームストツパ手段を設け、かつ、上記ホイ
ル上の上記タイヤの上方ビード部に上記係止片部
が接近する回転位置に、上位第２アームを停止さ
せる第２アームストツパ手段を設けたものであ
る。
In order to achieve the above object, the tubeless tire changer according to the present invention includes a tubeless tire changer including a wheel fixing base that holds a wheel whose axis is arranged vertically so as to be rotatable around the axis. In a changer for a tireless tire, there is a column on which two horizontal holding plates (upper and lower) are attached vertically in the form of a skewer, and a cylindrical portion at the base end is pivotally attached to the column so as to be rotatable around the axis of the column. A horizontal first arm having a roller at its tip that can freely rotate around a horizontal axis, and a cylindrical part at the base end that is pivotally connected to the support pillar so as to be rotatable around the axis of the support support and hanging downward. a horizontal second arm having a bead locking piece provided at its tip; a lifting mechanism for moving the holding plate in the vertical direction; and a back-and-forth movement mechanism for moving the holding plate in the radial direction of the foil. , further comprising a first arm stopper means for stopping the first arm at a rotational position where the roller approaches the upper bead of the tire placed sideways on the foil from above, and A second arm stopper means for stopping the upper second arm is provided at a rotational position where the locking piece approaches the upper bead of the tire on the foil.
ホイル上にタイヤを横倒状に載置し、その状態
で、第１アームのローラをタイヤの上方ビード部
上に位置させると共に、昇降機構を作動させてロ
ーラにて該タイヤの上方ビード部を下方へ押圧し
た状態として、ホイルを回転させれば、上方ビー
ド部が下方へ押圧させることにより、下方ビード
部も下方へ押圧され、該下方ビード部はホイルリ
ム内に入れ込まれる。次いで、ホイルの回転を停
止して、該ローラを該タイヤから離間させると共
に、第２アームのビード係止片部を、上方ビード
部とリムフランジ部との間に挿入させる。挿入状
態で、前進後退機構により、このビード係止片部
をホイルから遠ざかる方向に小距離だけ移動させ
て上方ビード部の係止片部による係止部位を外径
方向に強く引張る。そして、この状態でホイルを
回転させれば、上方ビード部は外径方向へ引張ら
れつつホイルリム内に入れ込まれることになる。
つまり、上方ビード部が係止片部とリムフランジ
との間において噛み込むことがなく、なめらかに
組み込まれ、ホイルの回転を不可能にすることが
ない。
A tire is placed on its side on the foil, and in this state, the roller of the first arm is positioned above the upper bead of the tire, and the lifting mechanism is activated to move the upper bead of the tire with the roller. When the foil is rotated in the downwardly pressed state, the upper bead portion presses downward, thereby also pressing the lower bead portion downward, and the lower bead portion is inserted into the foil rim. Next, the rotation of the wheel is stopped, the roller is separated from the tire, and the bead locking piece of the second arm is inserted between the upper bead and the rim flange. In the inserted state, the forward and backward mechanism moves this bead locking piece a small distance in a direction away from the foil, and strongly pulls the locking area of the upper bead portion by the locking piece in the outer radial direction. If the foil is rotated in this state, the upper bead portion will be pulled in the outer diameter direction and inserted into the foil rim.
In other words, the upper bead part does not get caught between the locking piece part and the rim flange, is smoothly incorporated, and does not make rotation of the foil impossible.
以下、実施例を示す図面に基づいて本発明を詳
明する。
Hereinafter, the present invention will be explained in detail based on drawings showing examples.
第１図は本発明に係るチユーブレスタイヤ用チ
エンジヤーを用いてタイヤ１をホイル２に装着す
る方法を示し、このチエンジヤーは、ホイル２を
保持するホイル固定台３と、タイヤ１の下方ビー
ド部４をホイルリム５に組み込ませるローラ６を
先端部に有する水平状の第１アーム４９と、タイ
ヤ１の上方ビード部７をホイルリム５に組み込ま
せるビード係止片部１８を先端部に有する水平状
の第２アーム５０と、を備えたものである。 FIG. 1 shows a method for mounting a tire 1 on a wheel 2 using a changer for tubeless tires according to the present invention. The first horizontal arm 49 has a roller 6 at its tip for assembling the upper bead 7 of the tire 1 into the foil rim 5; 2 arms 50.
しかして、オイル固定台３は、円筒状を呈し、
その上面にホイル２のデイスク部が載置され、デ
イスク部のハブ穴を利用してボルト３９で固定し
て、軸心Ｏが鉛直状に載置されるホイル２をその
軸心Ｏ廻り回転自在として保持するものである。 Therefore, the oil fixing base 3 has a cylindrical shape,
The disk part of the foil 2 is placed on the top surface, and is fixed with bolts 39 using the hub hole of the disk part, so that the wheel 2, which is placed with the axis O vertically, can be freely rotated around the axis O. It shall be held as such.
また、第１アーム４９は、円錐台形状とされる
と共に水平軸心廻りに遊転自在とされたローラ６
と、その基端に連設されたローラ保持杆９と、こ
のローラ保持杆９の基端部に連設された円筒部１
０と、からなる。そして、該円筒部１０は上下一
対の保持板１１，１２にて挾持保持されている。
即ち、円筒部１０の軸心鉛直軸心（つまり、ホイ
ル２の軸心Ｏと平行）とされ、該円筒部１０の軸
心と、ローラ保持杆９及びローラ６の軸心とは、
直交している。なお、保持板１１，１２には、円
筒部１０と同一軸心であり、かつ同径の貫孔１
３，１４が設けられている。 Further, the first arm 49 has a truncated conical shape, and the roller 6 is freely rotatable around a horizontal axis.
, a roller holding rod 9 connected to the base end thereof, and a cylindrical portion 1 connected to the base end of the roller holding rod 9.
It consists of 0 and. The cylindrical portion 10 is held between a pair of upper and lower holding plates 11 and 12.
That is, the axis of the cylindrical part 10 is the vertical axis (that is, parallel to the axis O of the foil 2), and the axis of the cylindrical part 10 and the axes of the roller holding rod 9 and the roller 6 are:
Orthogonal. Note that the holding plates 11 and 12 have through holes 1 that are coaxial with the cylindrical portion 10 and have the same diameter.
3 and 14 are provided.
次に、第２アーム５０は、第４図に示すよう
に、円筒部１５と、その側壁から突設される本体
部１６と、該本体部１６の先端に連設される爪部
材８と、からなる。また、爪部材８は、基端側の
傾斜片部１７と、その先端側において下方に垂設
されるビード係止片部１８と、からなる。また、
該円筒部１５は保持板１１上に載置され、その状
態で、支柱１９が円筒部１５に挿通されて、保持
板１１，１２に保持される。つまり、このチヤン
ジヤーは、上下２枚の水平状保持板１１，１２を
鉛直方向から串挿状として取付けられる支柱１９
を備える。 Next, as shown in FIG. 4, the second arm 50 includes a cylindrical portion 15, a main body portion 16 protruding from the side wall of the cylindrical portion 15, and a claw member 8 connected to the tip of the main body portion 16. Consisting of Further, the claw member 8 includes a sloped piece 17 on the proximal end side and a bead locking piece 18 hanging downward on the distal end thereof. Also,
The cylindrical portion 15 is placed on the holding plate 11, and in this state, the support 19 is inserted through the cylindrical portion 15 and held by the holding plates 11 and 12. In other words, this changer consists of a column 19 that is attached vertically to two horizontal retaining plates 11 and 12 in the form of a skewer.
Equipped with.
ここで、支柱１９とは、円柱状の本体部１９ａ
と、該本体部１９ａの上面に連設される円盤状体
１９ｂと、該円盤状体１９ｂの上面に立設される
把手部１９ｃと、からなり、本体部１９ａが、第
２アーム５０の円筒部１５、保持板１１の貫孔１
３、第１アーム４９の円筒部１０、及び、保持板
１２の貫孔１４に挿通され、爪部材８とローラ６
を上下縦列関係で夫々移動可能に保持し、該円盤
状体１９ｂが円筒部１５の上端縁に係止する。即
ち、第１アーム４９の基端の円筒部１０が支柱１
９の軸心O1廻りに回転自在として支柱１９に枢
着される。同様に、第２アーム５０の円筒部１５
も軸心O1廻りに回転自在として支柱１９に枢着
される。 Here, the pillar 19 is a cylindrical body portion 19a.
, a disc-shaped body 19b connected to the upper surface of the main body 19a, and a handle part 19c erected on the upper surface of the disc-shaped body 19b. Part 15, through hole 1 of retaining plate 11
3. It is inserted into the cylindrical part 10 of the first arm 49 and the through hole 14 of the holding plate 12, and the claw member 8 and the roller 6
are movably held in vertical and vertical relation, and the disc-shaped body 19b is locked to the upper edge of the cylindrical portion 15. That is, the cylindrical portion 10 at the base end of the first arm 49 is connected to the support 1.
It is pivotally connected to the column 19 so as to be rotatable around the axis O1 of the column 9. Similarly, the cylindrical portion 15 of the second arm 50
It is also pivotally connected to the support column 19 so as to be rotatable around the axis O1 .
しかして、この場合、平面視において本体部１
６と傾斜片部１７と係止片部１８とは同一線上に
配設される。また、係止片部１８は、ホイル２の
軸心Ｏと略平行に垂設されることになるが、平行
乃至先端に向つて僅かに外径方向（ホイル２から
遠ざかる方向）へ傾斜させるのがビード部７を一
層引掛け易くする点で好ましく、僅かに傾斜して
いるとは、軸心Ｏ（鉛直軸心）に対して5°位をい
う。なお、係止片部１８の先端縁部は図例の如
く、アール状とするのが好ましく、該係止片部１
８の長さ寸法Ｌとしては、例えば、30mm位は必要
であり、好ましくは40〜50mmである。 However, in this case, the main body 1 in plan view
6, the inclined piece part 17, and the locking piece part 18 are arranged on the same line. Further, the locking piece 18 is vertically provided substantially parallel to the axis O of the foil 2, but it is possible to make the locking piece 18 vertically parallel to or slightly inclined toward the outer diameter direction (direction away from the foil 2) toward the tip. is preferable in that it makes it easier to hook the bead portion 7, and being slightly inclined means about 5° with respect to the axis O (vertical axis). It is preferable that the leading edge of the locking piece 18 is rounded as shown in the figure.
The length L of 8 is required to be, for example, about 30 mm, preferably 40 to 50 mm.
そして、ローラ６と爪部材８とは支柱19の軸心
O1を中心に、第２図と第３図に示すように、揺
動可能とされるが、この場合、ローラ６と爪部材
８の夫々の揺動範囲は90°位とされる。即ち、ロ
ーラ６は、第２図に示すように、その軸心が上記
回転軸心O1とホイル２の軸心Ｏとを結ぶ直線ｌ
に一致した状態と、その軸心が軸心O1を通過す
ると共に該直線ｌと直交する直線ｍに一致した状
態と、に変位し、爪部材８は、第２図に示すよう
に、その軸心が直線ｍに一致した状態と、第３図
に示すように、その軸心が直線ｌに一致した状態
とに変位するものである。４５はホイル２上に横
倒状に載置されたタイヤ１の上方ビード部７に上
方からローラ６が近接する回転位置に、第１アー
ム４９を停止する突起３０とストツパ３１からな
る第１アームストツパ手段である（第１図と第
２図参照）。この場合、ローラ６は第２図に示す
状態で保持杆９の円筒部１０の突起３０が保持板
１１，１２間に設けられたストツパ３１に当接し
て、直線ｌを越えて矢印Ｂ方向へ揺動することが
規制される。また、４６はホイル２のタイヤ１の
上方ビード部７にビード係止片部１８が接近する
回転位置に、第２アーム５０を停止させるストツ
パ部材２０と保持板１１の傾斜面１１ｂとからな
る第２アームストツパ手段である（第３図参照）。
しかして、爪部材８は、第３図に示す状態で、円
筒部１５の側壁に設けられたストツパ部材２０に
より直線ｌを越えて矢印Ａ方向へ揺動することが
規制される。即ち、第４図に示すように、ストツ
パ部材２０は、Ｌ字状片２１と該Ｌ字状片２１の
鉛直部２１ａのねじ孔に螺着されるボルト２２
と、からなり、Ｌ字状片２１の水平部２１ｂが円
筒体１５の側壁に固着されるが、この場合、平面
視において、爪部材８に対して45°ずれている。
従つて、第３図に示す状態では、Ｌ字状片２１の
鉛直部２１ａの側部が保持板１１の他方の傾斜面
１１ｂに当接し、この状態でボルト２２を締め付
けて該ボルト２２の先端面を該傾斜面１１ｂに当
接させる。つまり、ボルト２２の傾斜面１１ｂ側
への突出量を変えることにより、爪部材８の角度
を調整することができ、爪部材８を直線ｌに一致
させることができる。 The roller 6 and the claw member 8 are connected to the axis of the support 19.
As shown in FIGS. 2 and 3, the roller 6 and the claw member 8 can be oscillated about O 1 as shown in FIG. That is, as shown in FIG.
The claw member 8 is displaced into a state in which it coincides with a straight line m that passes through the axis O1 and is perpendicular to the straight line l, and the claw member 8 is displaced as shown in FIG. The shaft center is displaced between a state in which the axial center coincides with a straight line m and a state in which the axial center coincides with a straight line l as shown in FIG. Reference numeral 45 denotes a first arm stopper consisting of a projection 30 and a stopper 31 that stops the first arm 49 at a rotational position where the roller 6 approaches the upper bead portion 7 of the tire 1 placed sideways on the wheel 2 from above. means (see Figures 1 and 2). In this case, the roller 6 moves in the direction of the arrow B beyond the straight line 1 with the protrusion 30 of the cylindrical portion 10 of the holding rod 9 coming into contact with the stopper 31 provided between the holding plates 11 and 12 in the state shown in FIG. Swinging is restricted. Further, reference numeral 46 denotes a stopper member 20 that stops the second arm 50 at a rotational position where the bead locking piece 18 approaches the upper bead portion 7 of the tire 1 of the wheel 2 and the inclined surface 11b of the holding plate 11. This is a two-arm stopper means (see Figure 3).
Thus, in the state shown in FIG. 3, the claw member 8 is prevented from swinging in the direction of the arrow A beyond the straight line 1 by the stopper member 20 provided on the side wall of the cylindrical portion 15. That is, as shown in FIG. 4, the stopper member 20 includes an L-shaped piece 21 and a bolt 22 screwed into a screw hole in a vertical portion 21a of the L-shaped piece 21.
The horizontal portion 21b of the L-shaped piece 21 is fixed to the side wall of the cylindrical body 15, but in this case, it is offset by 45 degrees with respect to the claw member 8 in plan view.
Therefore, in the state shown in FIG. 3, the side part of the vertical part 21a of the L-shaped piece 21 is in contact with the other inclined surface 11b of the retaining plate 11, and in this state, the bolt 22 is tightened to remove the tip of the bolt 22. The surface is brought into contact with the inclined surface 11b. That is, by changing the amount of protrusion of the bolt 22 toward the inclined surface 11b, the angle of the claw member 8 can be adjusted, and the claw member 8 can be aligned with the straight line l.
また、このチヤンジヤーは、保持板１１，１２
を上下方向に移動させる昇降機構（図示省略）
と、保持板１１，１２をホイル２の半径方向に移
動させる前進後退機構と、を備える。なお、昇降
機構と前進後退機構は、例えば、スクリユーシヤ
フトとモータ等から構成される。上述のように構
成したことにより、ローラ６及び爪部材８は上下
方向と半径方向に移動可能とされている。なお、
軸心O1から爪部材８のビード係止片部１８の先
端面１８ａまでの寸法L1と、軸心O1からローラ
６の先端面６ａまでの寸法L2とは、同一寸法に
設定される。 In addition, this changer includes retaining plates 11 and 12.
Lifting mechanism that moves vertically (not shown)
and a forward and backward mechanism for moving the holding plates 11 and 12 in the radial direction of the foil 2. Note that the elevating mechanism and the forward/backward mechanism include, for example, a screw shaft, a motor, and the like. With the above configuration, the roller 6 and the claw member 8 are movable in the vertical direction and the radial direction. In addition,
The dimension L1 from the axis O1 to the tip surface 18a of the bead locking piece 18 of the claw member 8 and the dimension L2 from the axis O1 to the tip surface 6a of the roller 6 are set to be the same dimension. Ru.
次に、上述の如く構成されたタイヤチエンジヤ
ーを用いてタイヤ１をホイル２に装着する方法を
説明する。 Next, a method for mounting the tire 1 on the wheel 2 using the tire changer configured as described above will be explained.
まず、第１図Ｉに示すように、ホイル固定台３
にホイル２を載置しボルト３９で固定させると共
に、ホイル２のリムフランジ２５上にタイヤ１を
載置させる。 First, as shown in FIG. 1I, the foil fixing base 3
The wheel 2 is placed on the wheel 2 and fixed with bolts 39, and the tire 1 is placed on the rim flange 25 of the wheel 2.
次に、待機位置に逃げていたローラ６（平面視
において第２図に示すように直線ｌに一致してい
る状態）を前進・下降させてタイヤ１の上方ビー
ド部７に押し当て、第１図に示すように、押圧
された上方ビード部７の被押圧部に対向する下方
ビード部４の一部を、ホイルリム５のウエル２４
に入れ込ませる。そして、この状態でホイル２を
第２図に示すように、軸心Ｏ廻りに矢印Ｃ方向に
回動させる。（この場合、もし、第３図に示す矢
印Ｄ方向に回動させれば、ローラ６がタイヤ１か
ら反力で矢印Ａ方向に揺動してしまう虞れがある
からである。）従つて、この回転にともなつて、
下方ビード部４の全部分は第１図に示すように
ホイルウエル２４に入れ込まれる。 Next, the roller 6 that had escaped to the standby position (in a state that corresponds to the straight line l as shown in FIG. 2 in plan view) is advanced and lowered to press against the upper bead portion 7 of the tire 1, As shown in the figure, a part of the lower bead portion 4 facing the pressed portion of the pressed upper bead portion 7 is inserted into the well 24 of the foil rim 5.
Let it be included. In this state, the foil 2 is rotated about the axis O in the direction of arrow C, as shown in FIG. (In this case, if the roller 6 is rotated in the direction of the arrow D shown in FIG. 3, there is a risk that the roller 6 will swing in the direction of the arrow A due to the reaction force from the tire 1.) , with this rotation,
The entire portion of the lower bead portion 4 is inserted into the foil well 24 as shown in FIG.
そして、第３図に示す矢印Ａ方向にローラ６を
90°揺動させ、タイヤ１から離間させる。 Then, move the roller 6 in the direction of arrow A shown in FIG.
Swing it 90 degrees and separate it from tire 1.
次に、ストツパ部材２０を調整して爪部材８を
平面視において、直線ｌに一致した状態として固
定し、この状態で該爪部材８を下降させ、第１図
に示すように、ビード係止片部１８に上方ビー
ド部７を係止させるが、この場合、係止片部１８
はリムフランジ２５より半径方向外方位置（リム
フランジ２５より約10mm離隔した位置）となり、
上方ビード部７の係止片部１８対応部位は第３図
に矢印Ｅで示すように、半径方向外方へ引張ら
れ、上方ビード部７が平面視において、略楕円形
状となる。なお、係止片部１８を上方ビード部７
に係止させる場合、爪部材８を一旦、前進させ、
係止片部１８が上方ビード部７を半径方向内方に
やや越えた位置で停止させ、次いで、爪部材８を
下降させて係止片部１８を上方ビード部７に近づ
けた後、爪部材８を半径方向外方に移動させて、
係止片部１８を上方ビード部７に当接させ、か
つ、リムフランジ２５より半径方向外方にやや離
れた位置まで移動させ停止させるようにしてもよ
い。 Next, the stopper member 20 is adjusted to fix the pawl member 8 in a state that corresponds to the straight line l in plan view, and in this state, the pawl member 8 is lowered to lock the bead as shown in FIG. The upper bead portion 7 is locked to the piece 18, but in this case, the locking piece 18
is located radially outward from the rim flange 25 (a position approximately 10 mm apart from the rim flange 25),
The portion of the upper bead portion 7 corresponding to the locking piece portion 18 is pulled radially outward as shown by arrow E in FIG. 3, and the upper bead portion 7 has a substantially elliptical shape in plan view. Note that the locking piece 18 is connected to the upper bead portion 7.
When locking, the claw member 8 is moved forward once,
The locking piece portion 18 is stopped at a position slightly beyond the upper bead portion 7 in the radial direction, and then the claw member 8 is lowered to bring the locking piece portion 18 closer to the upper bead portion 7, and then the claw member 8 radially outward,
The locking piece portion 18 may be brought into contact with the upper bead portion 7, moved radially outward from the rim flange 25 to a position slightly distant, and then stopped.
そして、ホイル固定台３の駆動モータを逆転駆
動させ第３図に示す状態からホイル２をその軸心
Ｏ廻りに矢印Ｄ方向に回転させる。（この場合第
２図に示す矢印Ｃ方向に回転させれば、爪部材８
がタイヤ１からの圧力で矢印Ｂ方向に揺動してし
まう虞れがあるからである。）また、タイヤ１の
復元力にて上方ビード部７がホイルウエル２４か
ら出ようとするのを防止するために、リムフラン
ジ２５には、上方ビード部７乃至その近傍のサイ
ドウオールを下方へ押える押え部材３８（第６図
参照）が取付けられている。即ち、リムフランジ
２５は押え部材３８のチヤツク部３２，３３で挾
持され、該押え部材３８の傾斜部３５にてビード
部７が常時下方へ押圧され、オイル２が空廻りす
ることが防止される。従つて、ホイル２の矢印Ｄ
方向の回転により、上方ビード部７は外径方向に
引張られつつリム５のホイルウエル２４に入れ込
まれてゆく。そして、ホイル２とタイヤ１が一回
転共廻りして上方ビード部７が全部分ホイルリム
５内に入れ込まれて第１図に示す状態になつた
時、爪部材８をタイヤ１から離間させる。次い
で、バルブ３６から高圧エアを注入し、第１図
に示すように上方ビード部７及び下方ビード部４
が夫々リムフランジ２５に嵌合したときに組み込
み作業が終了する。 Then, the drive motor of the wheel fixing base 3 is driven in reverse to rotate the wheel 2 about its axis O in the direction of arrow D from the state shown in FIG. (In this case, if the claw member 8 is rotated in the direction of arrow C shown in FIG.
This is because there is a risk that the pressure from the tire 1 will cause the wheel to swing in the direction of arrow B. ) Furthermore, in order to prevent the upper bead portion 7 from coming out of the wheel well 24 due to the restoring force of the tire 1, the rim flange 25 is provided with a presser foot that presses down the upper bead portion 7 or the sidewall in the vicinity thereof. A member 38 (see FIG. 6) is attached. That is, the rim flange 25 is held between the chuck portions 32 and 33 of the holding member 38, and the bead portion 7 is constantly pressed downward by the inclined portion 35 of the holding member 38, thereby preventing the oil 2 from flowing around. . Therefore, arrow D of foil 2
As the upper bead portion 7 is rotated in the direction, the upper bead portion 7 is inserted into the foil well 24 of the rim 5 while being pulled in the outer diameter direction. Then, when the wheel 2 and the tire 1 rotate one revolution together and the upper bead portion 7 is completely inserted into the wheel rim 5 to reach the state shown in FIG. 1, the pawl member 8 is separated from the tire 1. Next, high pressure air is injected from the valve 36, and as shown in FIG.
The assembly work is completed when the rim flanges 25 are fitted into the respective rim flanges 25.
しかして、上述の実施例においては、寸法L1
と寸法L2とを同一に設定しているので、ローラ
６により下方ビード部組み込み状態と、爪部材８
による上方ビード部組み込み状態とを切換える際
において、ホイル２を移動させる必要がなく、操
作性に優れたものとなつている。 Thus, in the embodiment described above, the dimension L 1
and dimension L2 are set to be the same, so the lower bead part is assembled by the roller 6, and the claw member 8
There is no need to move the foil 2 when switching between the state in which the upper bead part is assembled and the state in which the upper bead part is assembled, resulting in excellent operability.
次に、第５図は第２アーム５０の他の実施例を
示し、この第２アーム５０は、筒体２６と、その
側壁から突設される軸部２７と、この軸部２７に
着脱自在に取付けられる爪部材８と、からなる、
また、爪部材８は、軸部２７が挿脱自在に挿入さ
れる筒部２９と傾斜片部４０と係合片部１８とか
らなり、使用時においては、筒部２９に軸部２７
を挿入し、図示省略のボルト等の連結具にて該筒
部２９と軸部２７とを一体状とする。つまり、不
使用時においては、連結具による連結を解除すれ
ば、軸部２７から爪部材８を取り外せるように設
定している。なお、爪部材８とローラ６とその回
転揺動方向を異にすることで互いに干渉すること
を防止できることはいうまでもない。 Next, FIG. 5 shows another embodiment of the second arm 50, which includes a cylinder 26, a shaft portion 27 protruding from the side wall thereof, and a shaft portion 27 that can be freely attached to and detached from the cylinder body 26. a claw member 8 attached to the
The claw member 8 is composed of a cylinder part 29 into which the shaft part 27 is removably inserted, an inclined piece part 40, and an engagement piece part 18. During use, the shaft part 27 is inserted into the cylinder part 29.
is inserted, and the cylindrical portion 29 and the shaft portion 27 are made integral with a connecting tool such as a bolt (not shown). That is, when not in use, the claw member 8 is designed to be detachable from the shaft portion 27 by releasing the connection by the connector. It goes without saying that interference with each other can be prevented by making the claw member 8 and the roller 6 rotate in different directions.
なお、本発明は上述の実施例に限定されず、本
発明の要旨を逸脱しない範囲で設計変更自由であ
り、例えば、第１アーム４９と第２アーム５０の
揺動可能な方向を、相互に逆転させるも自由であ
る。そして、その場合は、第２図の状態に於て
は、ホイル２の回転方向を矢印Ｃとは反対方向と
し、また、第３図の状態に於ては、ホイル２の回
転方向を矢印Ｄとは反対方向とすればよい。 Note that the present invention is not limited to the above-described embodiments, and the design may be changed without departing from the gist of the present invention. For example, the directions in which the first arm 49 and the second arm 50 can swing may be mutually changed. You are free to reverse it. In that case, in the state shown in FIG. 2, the rotation direction of the foil 2 is set in the opposite direction to the arrow C, and in the state shown in FIG. It may be in the opposite direction.
本発明は、上述の構成により、以下に示す顕著
な効果を奏する。
The present invention has the following remarkable effects due to the above-described configuration.
タイヤ１の上方ビード部７をビード係止片部１
８にてホイル２の径方向外方へ引張りつつリム組
みさせることができる。これにより、ビード係止
片部１８とホイルリム５との間に上方ビード部７
が噛み込まれてホイル２及びタイヤ１の回転が停
止することや、タイヤ内面が傷付くことを確実に
防止できる。 The upper bead portion 7 of the tire 1 is connected to the bead locking piece 1
At step 8, the rim can be assembled while pulling the foil 2 radially outward. As a result, the upper bead portion 7 is formed between the bead locking piece portion 18 and the foil rim 5.
It is possible to reliably prevent the rotation of the wheel 2 and the tire 1 from being jammed and the rotation of the wheel 2 and the tire 1 being stopped, and the inner surface of the tire from being damaged.
第１図は本発明に係るチユーブレスタイヤ用チ
エンンジヤーの一実施例の使用方法を示す簡略
図、第２図はローラ使用状態の要部拡大平面図、
第３図は爪部材使用状態の要部拡大平面図、第４
図は爪部材の拡大正面図、第５図は爪部材の他の
実施例の拡大正面図、第６図は押え部材を示す拡
大正面図である。第７図は従来例の要部拡大斜視
図である。
１……タイヤ、２……ホイル、３……ホイル固
定台、６……ローラ、７……上方ビード部、１０
……円筒部、１１，１２……保持板、１５……円
筒部、１８……ビード係止片部、１９……支柱、
４５……第１アームストツパ手段、４６……第２
アームストツパ手段、４９……第１アーム、５０
……第２アーム、Ｏ……軸心、O1……軸心。
FIG. 1 is a simplified diagram showing how to use an embodiment of the chain gear for tubeless tires according to the present invention, and FIG. 2 is an enlarged plan view of the main part of the roller in use.
Figure 3 is an enlarged plan view of the main part of the claw member in use;
5 is an enlarged front view of another embodiment of the claw member, and FIG. 6 is an enlarged front view of the holding member. FIG. 7 is an enlarged perspective view of the main parts of the conventional example. DESCRIPTION OF SYMBOLS 1...Tire, 2...Foil, 3...Foil fixing base, 6...Roller, 7...Upper bead part, 10
... Cylindrical part, 11, 12 ... Holding plate, 15 ... Cylindrical part, 18 ... Bead locking piece part, 19 ... Support column,
45...first arm stop means, 46...second
Arm stop means, 49...first arm, 50
...Second arm, O...Axis center, O 1 ...Axis center.
Claims (1)
軸心Ｏ廻りに回転自在として保持するホイル固定
台３を、備えたチユーブレスタイヤ用チエンジヤ
ーにおいて、 上下２枚の水平状保持板１１，１２を鉛直方向
から串挿状として取次けられる支柱１９と、基端
の円筒部１０が該支柱１９の軸心O1廻りに回転
自在として該支柱１９に枢着されると共に水平軸
心廻りに遊転自在なローラ６を先端部に有する水
平状の第１アーム４９と、基端の円筒部１５が上
記支柱１９の軸心O1廻りに回転自在として該支
柱１９に枢着されると共に下方に垂設されるビー
ド係止片部１８を先端部に有する水平状の第２ア
ーム５０と、上記保持板１１，１２を上下方向に
移動させる昇降機構と、上記保持板１１，１２を
上記ホイル２の半径方向に移動させる前進後退機
構と、を備え、 さらに、上記ホイル２上に横倒状に載置された
タイヤ１の上方ビード部７に上方から上記ローラ
６が接近する回転位置に、上記第１アーム４９を
停止する第１アームストツパ手段４５を設け、 かつ、上記ホイル２上の上記タイヤ１の上方ビ
ート部７に上記係止片部１８が接近する回転位置
に、上記第２アーム５０を停止させる第２アーム
ストツパ手段４６を設けた、 ことを特徴とするチユーブレスタイヤ用チエンジ
ヤー。[Scope of Claims] 1. In a tubeless tire changer equipped with a wheel fixing base 3 that holds a wheel 2 whose axis O is arranged vertically so as to be rotatable around the axis O, there are two upper and lower wheels. The horizontal holding plates 11 and 12 are interposed vertically in a skewered manner, and the cylindrical portion 10 at the base end is pivotally attached to the support 19 so as to be freely rotatable around the axis O1 of the support 19. The first arm 49 has a horizontal first arm 49 having a roller 6 at the distal end that is freely rotatable about the horizontal axis, and the cylindrical part 15 at the base end is rotatable about the axis O1 of the column 19. a horizontal second arm 50 having a bead locking piece 18 at its tip that is pivotally attached to the arm and vertically disposed downward; a lifting mechanism that moves the holding plates 11 and 12 in the vertical direction; a forward and backward mechanism for moving the plates 11 and 12 in the radial direction of the wheel 2; A first arm stopper means 45 for stopping the first arm 49 is provided at a rotational position where the first arm 49 approaches, and a rotational position where the locking piece 18 approaches the upper beat portion 7 of the tire 1 on the wheel 2. A changer for a tubeless tire, further comprising a second arm stopper means 46 for stopping the second arm 50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13664890A JPH0431110A (en) | 1990-05-25 | 1990-05-25 | Changer for tubeless tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13664890A JPH0431110A (en) | 1990-05-25 | 1990-05-25 | Changer for tubeless tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0431110A JPH0431110A (en) | 1992-02-03 |
| JPH0561121B2 true JPH0561121B2 (en) | 1993-09-03 |
Family
ID=15180239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13664890A Granted JPH0431110A (en) | 1990-05-25 | 1990-05-25 | Changer for tubeless tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0431110A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2724661B2 (en) * | 1993-03-02 | 1998-03-09 | 小野谷機工株式会社 | How to install flat tires |
| JP4745683B2 (en) * | 2005-02-25 | 2011-08-10 | Ｈｏｙａ株式会社 | Magnifier |
| JP6009968B2 (en) * | 2013-02-25 | 2016-10-19 | 小野谷機工株式会社 | How to attach and detach tires |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5853204U (en) * | 1981-10-02 | 1983-04-11 | バブコツク日立株式会社 | electrodialysis machine |
| JPS601604B2 (en) * | 1978-04-03 | 1985-01-16 | 旭光学工業株式会社 | eyeglass lenses for astigmatism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS601604U (en) * | 1983-06-20 | 1985-01-08 | ダイハツ工業株式会社 | tire fitting machine |
-
1990
- 1990-05-25 JP JP13664890A patent/JPH0431110A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS601604B2 (en) * | 1978-04-03 | 1985-01-16 | 旭光学工業株式会社 | eyeglass lenses for astigmatism |
| JPS5853204U (en) * | 1981-10-02 | 1983-04-11 | バブコツク日立株式会社 | electrodialysis machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0431110A (en) | 1992-02-03 |
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