JPH0318984Y2 - - Google Patents
Info
- Publication number
- JPH0318984Y2 JPH0318984Y2 JP19596886U JP19596886U JPH0318984Y2 JP H0318984 Y2 JPH0318984 Y2 JP H0318984Y2 JP 19596886 U JP19596886 U JP 19596886U JP 19596886 U JP19596886 U JP 19596886U JP H0318984 Y2 JPH0318984 Y2 JP H0318984Y2
- Authority
- JP
- Japan
- Prior art keywords
- low speed
- lever
- positioning
- speed lever
- notch plate
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
Landscapes
- Gear-Shifting Mechanisms (AREA)
- Mechanical Control Devices (AREA)
- Control Of Transmission Device (AREA)
Description
【考案の詳細な説明】
(イ) 産業上の利用分野
本考案は、リングコーン式無段変速装置を備え
る動力移動作業機の高低速レバー位置決め機構の
改良に関する。[Detailed Description of the Invention] (A) Field of Industrial Application The present invention relates to an improvement in a high-low speed lever positioning mechanism for a power mobile working machine equipped with a ring cone type continuously variable transmission.
(ロ) 従来の技術
リングコーン式無段変速装置は、ノークラツチ
で低速から高速まで無段階に変速操作可能である
という特徴を有するが、変速操作用の高低速レバ
ーの位置決め機構には、該高低速レバーの支点部
分の皿ばねによる押えによる方式やノツチ方式が
ある。(b) Prior art The ring cone type continuously variable transmission has the feature of being able to perform stepless gear shifting from low to high speed without a clutch. There are two methods: one that uses a disc spring to hold down the fulcrum of the low-speed lever, and the other that uses a notch.
上記ノツチ方式は、第５図及び第６図に示す如
く、高低速レバー１０１の中間部に固着された板
ばね部材１０４の係合突起１０６を機体側に固設
された位置決め用ノツチ板１０７に形成された複
数のノツチ１０８…の一に係合せしめることによ
つて高低速レバー１０１の位置決めを図る方式で
あり、第５図中、Ｈ側への高低速レバー１０１の
位置決めは高速側に対応し、Ｌ側への位置決めは
低速側に対応する。尚、第５図は高低速レバー１
０１の位置決め機構部の側面図、第６図は第５図
の−線断面図である。 As shown in FIGS. 5 and 6, the above-mentioned notch method connects the engagement protrusion 106 of the leaf spring member 104 fixed to the middle part of the high-low speed lever 101 to the positioning notch plate 107 fixed to the aircraft body. This is a method of positioning the high/low speed lever 101 by engaging one of the plurality of notches 108 formed therein, and in FIG. 5, the positioning of the high/low speed lever 101 to the H side corresponds to the high speed side. However, positioning to the L side corresponds to the low speed side. Furthermore, Figure 5 shows the high/low speed lever 1.
FIG. 6 is a side view of the positioning mechanism section of No. 01, and FIG. 6 is a sectional view taken along the line -- in FIG.
(ハ) 考案が解決しようとする問題点
ところで、リングコーン式無段変速装置の特性
から高速域においては高低速レバー１０１に大き
なスラスト荷重が作用し、低速域においては小さ
なスラスト荷重が作用する。(c) Problems to be solved by the invention By the way, due to the characteristics of the ring cone type continuously variable transmission, a large thrust load acts on the high/low speed lever 101 in the high speed range, and a small thrust load acts on the high/low speed lever 101 in the low speed range.
然るに、前記従来の位置決め機構にあつては、
前記ノツチ１０８…は低速域から高速域に至る全
速度範囲に亘つて同一長さに形成されていたた
め、高低速レバー１０１の板ばね部材１０４を介
しての位置決め用ノツチ板１０７への保持力は全
速度範囲で等しく、高速域において高低速レバー
１０１に作用する大きなスラスト荷重に抗して該
高低速レバー１０１を所定位置に確実に保持する
必要がある関係上、当該高低速レバー１０１の操
作荷重が低速域まで含めた全速度範囲に亘つて高
くならざるを得ず、オペレータの操作上の負担が
大きいという問題があつた。 However, in the conventional positioning mechanism,
Since the notches 108 are formed to have the same length over the entire speed range from low speed range to high speed range, the holding force of the high/low speed lever 101 to the positioning notch plate 107 via the leaf spring member 104 is as follows. The operating load of the high/low speed lever 101 is equal over the entire speed range, and it is necessary to reliably hold the high/low speed lever 101 in a predetermined position against the large thrust load that acts on the high/low speed lever 101 in the high speed range. There is a problem in that the speed must be high over the entire speed range including low speed ranges, which places a heavy operational burden on the operator.
本考案は上記問題に鑑みてなされたもので、そ
の目的とする処は、高速域においては高低速レバ
ーを確実に保持し、低速域においては高低速レバ
ーの操作荷重を軽くしてオペレータの操作上の負
担を軽減することができる動力移動作業機の高低
速レバー位置決め機構を提供するにある。 The present invention was developed in view of the above problems, and its purpose is to securely hold the high/low speed lever in high speed ranges, and to lighten the operating load of the high/low speed levers in low speed ranges to allow the operator to operate the levers. To provide a high/low speed lever positioning mechanism for a power mobile working machine that can reduce the burden on the operator.
(ニ) 問題点を解決するための手段
上記的を達成すべく本考案は、リングコーン式
無段変速装置に連結される高低速レバーに板ばね
部材を固着し、該板ばね部材を機体側に固設され
た位置決め用ノツチ板のノツチに係合せしめるこ
とによつて上記高低速レバーを位置決めする動力
移動作業機の高低速レバー位置決め機構におい
て、前記位置決め用ノツチ板のノツチの長さを高
速側では短かく、低速側では長く設定したことを
特徴とする。(d) Means for solving the problem In order to achieve the above objective, the present invention fixes a leaf spring member to the high/low speed lever connected to the ring cone type continuously variable transmission, and attaches the leaf spring member to the side of the aircraft body. In the high/low speed lever positioning mechanism of a power mobile work machine, the high/low speed lever is positioned by engaging with the notch of a positioning notch plate fixed to the It is characterized by being set short on the side and long on the low speed side.
(ホ) 作用
而して、位置決め用ノツチ板の剛性は高速域に
対応する部分で高く、低速域に対応する部分で低
いため、高低速レバーに作用するスラスト荷重の
大きい高速域においては位置決め用ノツチ板は撓
むことなく高低速レバーを確実に保持し、スラス
ト荷重の小さい低速域においては位置決め用ノツ
チ板が撓み、高低速レバーの操作荷重が小さくな
つてオペレータの操作上の負担が軽減される。(E) Function Therefore, the rigidity of the positioning notch plate is high in the part corresponding to the high speed range and low in the part corresponding to the low speed range. The notch plate securely holds the high/low speed lever without bending, and in the low speed range where the thrust load is small, the positioning notch plate flexes, reducing the operational load on the high/low speed lever and reducing the operational burden on the operator. Ru.
(ヘ) 実施例
以下に本考案の一実施例を添付図面に基づいて
説明する。(F) Embodiment An embodiment of the present invention will be described below based on the attached drawings.
第１図は本考案に係る位置決め機構を備える高
低速レバーの側面図、第２図は同位置決め機構部
の拡大詳細図、第３図，第４図はそれぞれ第２図
の−線、−線断面図である。 Fig. 1 is a side view of a high-low speed lever equipped with a positioning mechanism according to the present invention, Fig. 2 is an enlarged detailed view of the positioning mechanism, and Figs. 3 and 4 are - lines and - lines in Fig. 2, respectively. FIG.
第１図において、１はその下端が軸２にて前後
方向（第１図中、左右方向）に回動自在に栓着さ
れた高低速レバーであつて、これは不図示のリン
グコーン式無段変速装置に連結されており、これ
を前方（第１図中、左方）へ傾けると高体側へ変
速され、逆に後方（第１図中、右方）へ傾けると
低速側に変速される。尚、この高低速レバー１の
上半部はパイプ材１ａで、下半部は板材１ｂでそ
れぞれ構成され、パイプ材１ａの上端にはＴ字状
を成す操作用ノブ３が結着され、板材１ｂの上端
部、即ち高低速レバー１の中間高さ位置には二股
状の板ばね部材４がボルト５．５にて結着されて
いる。そして、この板ばね部材４の二股に分かれ
る各片４ａ，４ａの各々には係合突起６，６が突
設されている。 In Fig. 1, reference numeral 1 denotes a high/low speed lever whose lower end is connected to a shaft 2 so as to be rotatable in the front-rear direction (left-right direction in Fig. 1). It is connected to a speed change gear; tilting it forward (to the left in Figure 1) will shift the gear to the high speed side, and conversely, tilting it backward (to the right in Figure 1) will shift to the low speed side. Ru. The upper half of this high/low speed lever 1 is made of a pipe material 1a, and the lower half is made of a plate material 1b. A T-shaped operating knob 3 is fixed to the upper end of the pipe material 1a, and the plate material A bifurcated leaf spring member 4 is fastened to the upper end of the lever 1b, that is, at an intermediate height position of the high-low speed lever 1, with bolts 5.5. Engagement protrusions 6, 6 are provided on each of the two bifurcated pieces 4a, 4a of the leaf spring member 4, respectively.
一方、上監高低速レバー１の中間高さ位置に対
応する機体（図示せず）側には平板状の位置決め
用ノツチ板７が固設されており、該位置決め用ノ
ツチ板７には前記板ばね部材４に設けた係合突起
６，６が係合すべき複数のノツチ８…が穿設され
ている。これらノツチ８…はその長さで３群８ａ
…、８ｂ…、８ｃ…に分けられ、ノツチ８ａ…、
８ｂ…、８ｃ…の各長さ1，2，3の間には
1＞2＞3なる関係があり、その長さは高速
域Ｈでは短かく、低速域Ｌでは長く設定されてい
る。 On the other hand, a flat positioning notch plate 7 is fixed on the side of the machine body (not shown) corresponding to the intermediate height position of the upper control high/low speed lever 1. A plurality of notches 8 are bored into which the engagement protrusions 6 provided on the spring member 4 engage. These notches 8... have three groups 8a in length.
..., 8b..., 8c..., notch 8a...,
Between each length 1 , 2 , 3 of 8b..., 8c...
There is a relationship of 1 > 2 > 3 , and the length is set short in the high speed range H and long in the low speed range L.
次に本高低側レバー位置決め機構の作用を説明
する。 Next, the operation of this height-low side lever positioning mechanism will be explained.
第２図中、実線にて示す如く高低速レバー１が
前方へ倒されてこれが高速域Ｈにセツトされてい
るときには、板ばね部材４の両係合突起６，６は
位置決め用ノツチ板７の長さの短かいノツチ８
ｃ，８ｃに係合している。然るに、前述の如くリ
ングコーン式無段変速装置の特性から高速域Ｈに
おいては高低速レバー１には高いスラスト荷重が
作用するが、高速域Ｈにおけるノツチ８ｃ…の長
さ3は前述の如く短かいため、位置決め用ノツ
チ板７のノツチ８ｃ…近傍の剛性は高く、第３図
に示す如くノツチ８，８ｃへの係合突起６，６の
係合によつても該位置決め用ノツチ板７は撓み変
形せず、従つて高低速レバー１は高い保持力によ
つて確実に位置決めされる。 When the high/low speed lever 1 is tilted forward and set in the high speed range H as shown by the solid line in FIG. Short length notsuchi 8
c, 8c. However, as mentioned above, due to the characteristics of the ring cone type continuously variable transmission, a high thrust load acts on the high/low speed lever 1 in the high speed range H, but the length 3 of the notches 8c... in the high speed range H is short as described above. Therefore, the rigidity of the notch 8c of the positioning notch plate 7 is high, and as shown in FIG. There is no flexural deformation, so the high/low speed lever 1 is reliably positioned with a high holding force.
他方、第２図中、鎖線にて示す如く高低速レバ
ー１が後方へ倒されてこれが低速域Ｌにセツトさ
れているときには、板ばね部材４の両係合突起
６，６は位置決め用ノツチ板７の長さの長いノツ
チ８ａ，８ａに係合している。而して、リングコ
ーン式無段変速装置の特性からしてその低速域Ｌ
における高低速レバー１へのスラスト荷重は小さ
く、低速域Ｌにおけるノツチ８ａ…の長さ1は
前述の如く長いため、位置決め用ノツチ板７のノ
ツチ板８ａ…近傍の剛性は低く、ノツチ８ａ，８
ａへの係合突起６，６の係合によつて該位置決め
用ノツチ板７は第４図に示す如く容易に撓み変形
し、ノツチ板８ａ，８ａの高低速レバー１の保持
力は小さくなる。従つて、低速域Ｌでの高低速レ
バー１の操作力は小さくて済み、これによりオペ
レータの操作上の負担が軽減される。 On the other hand, when the high/low speed lever 1 is tilted backward and set in the low speed range L as shown by the chain line in FIG. 7 and are engaged with long notches 8a, 8a. Therefore, considering the characteristics of the ring cone type continuously variable transmission, its low speed range L
The thrust load on the high/low speed lever 1 is small, and the length 1 of the notches 8a in the low speed range L is long as described above, so the rigidity of the positioning notch plate 7 near the notch plate 8a is low,
By the engagement of the engagement protrusions 6, 6 with the engagement protrusions 6, 6, the positioning notch plate 7 is easily bent and deformed as shown in FIG. . Therefore, the operating force of the high/low speed lever 1 in the low speed range L is small, thereby reducing the operational burden on the operator.
尚、高速域Ｈと低速域Ｌの中間（中速域）にお
いては、板ばね部材４の係合突起６，６は位置決
め用ノツチ板７のノツチ８ｂ，８ｂに係合し、こ
のとき当該位置決め機構は前記高速域Ｈにおける
作用と低速域Ｌにおけるそれとの丁度中間の作用
をなす。 In addition, in the middle between the high speed range H and the low speed range L (medium speed range), the engagement protrusions 6, 6 of the leaf spring member 4 engage with the notches 8b, 8b of the positioning notch plate 7, and at this time, the positioning The mechanism has an action that is exactly intermediate between the action in the high speed range H and that in the low speed range L.
ところで、従来は高低速レバーの位置決めをこ
れの支点部分に設けた皿ばねの押圧力に基づく摩
擦力によつてなしていたが、これでは大きな操作
荷重を要し、微調整が不可能である。これに対し
て本実施例の如きノツチ方式によれば、高低速レ
バー１の略中央高さ位置に位置決め用ノツチ板７
を配したため、高低速レバー１の前後のストロー
ク幅に対して位置決め用ノツチ板７に設けられる
ノツチ８のピツチを広い範囲で取ることができ、
これによつて速度の微調整が可能となる。又、本
実施例の如く位置決め用ノツチ板７部分で高低速
レバー１に作用するスラスト荷重を受ける方が所
謂皿ばね方式によるよりも小さな力で高低速レバ
ー１を保持することができるため、軽い操作力で
容易に高低速レバー１を操作することができる。 By the way, in the past, the positioning of the high and low speed lever was done using frictional force based on the pressing force of a disc spring installed at the fulcrum part of the lever, but this required a large operating load and made fine adjustment impossible. . On the other hand, according to the notch method as in this embodiment, the positioning notch plate 7 is located at approximately the center height position of the high/low speed lever 1.
Because of this arrangement, the pitch of the notch 8 provided on the positioning notch plate 7 can be adjusted over a wide range with respect to the front and rear stroke width of the high/low speed lever 1.
This allows fine adjustment of the speed. In addition, receiving the thrust load acting on the high/low speed lever 1 at the positioning notch plate 7 as in this embodiment allows the high/low speed lever 1 to be held with a smaller force than when using the so-called disc spring system, so it is lighter. The high/low speed lever 1 can be easily operated by operating force.
(ト) 考案の効果
以上の説明で明らかな如く本考案によれば、リ
ングコーン式無段変速装置に連結される高低速レ
バー１に板ばね部材４を固着し、該板ばね部材４
を機体側に固設された位置決め用ノツチ板７のノ
ツチ８に係合せしめることによつて上記高低速レ
バー１を位置決めする動力移動作業機の高低速レ
バー位置決め機構において、前記位置決め用ノツ
チ板７のノツチ８の長さを高速側では短かく、低
速側では長く設定したため、位置決め用ノツチ板
７の剛性は高速域に対応する部分で高く、低速域
に対応する部分で低くなり、高低速レバー１に作
用するスラスト荷重の大きい高速域においては位
置決め用ノツチ板７は撓むことなく高低速レバー
１を確実に保持し、スラスト荷重の小さい低速域
においては位置決め用ノツチ板７が撓み、高低速
レバーの操作荷重が小さくなつてオペレータの操
作上の負担が軽減されるという効果が得られる。(g) Effect of the invention As is clear from the above explanation, according to the invention, the leaf spring member 4 is fixed to the high/low speed lever 1 connected to the ring cone type continuously variable transmission, and the leaf spring member 4 is
In a high/low speed lever positioning mechanism for a power mobile working machine, the high/low speed lever 1 is positioned by engaging with a notch 8 of a positioning notch plate 7 fixed to the machine body side. Since the length of the notch 8 is set short on the high speed side and long on the low speed side, the rigidity of the positioning notch plate 7 is high in the part corresponding to the high speed range and low in the part corresponding to the low speed range, and the In the high speed range where the thrust load acting on the lever 1 is large, the positioning notch plate 7 reliably holds the high/low speed lever 1 without bending, and in the low speed range where the thrust load is small, the positioning notch plate 7 flexes and the high/low speed The effect of reducing the operational load on the lever and reducing the operational burden on the operator is obtained.
第１図は本考案に係る位置決め機構を備える高
低速レバーの側面図、第２図は同位置決め機構部
の拡大詳細図、第３図、第４図はそれぞれ第２図
の−線、−線断面図、第５図は従来の位
置決め機構を示す側面図、第６図は第５図の−
線断面図である。
１……高低速レバー、４……板ばね部材、７…
…位置決め用ノツチ板、８……ノツチ。
Fig. 1 is a side view of a high-low speed lever equipped with a positioning mechanism according to the present invention, Fig. 2 is an enlarged detailed view of the positioning mechanism, and Figs. 3 and 4 are lines - and - lines in Fig. 2, respectively. A sectional view, FIG. 5 is a side view showing a conventional positioning mechanism, and FIG. 6 is a side view of the conventional positioning mechanism.
FIG. 1... High/low speed lever, 4... Leaf spring member, 7...
...Notch plate for positioning, 8...notch.
Claims (1)
速レバー１に板ばね部材４を固着し、該板ばね部
材４を機体側に固設された位置決め用ノツチ板７
のノツチ８に係合せしめることによつて上記高低
速レバー１を位置決めする動力移動作業機の高低
速レバー位置決め機構において、前記位置決め用
ノツチ板７のノツチ８の長さを高速側では短か
く、低速側では長く設定したことを特徴とする動
力移動作業機の高低速レバー位置決め機構。 A leaf spring member 4 is fixed to a high/low speed lever 1 connected to a ring cone type continuously variable transmission, and the leaf spring member 4 is fixed to a positioning notch plate 7 fixed to the body side.
In the high/low speed lever positioning mechanism for a power mobile working machine that positions the high/low speed lever 1 by engaging with the notch 8 of the positioning notch plate 7, the length of the notch 8 of the positioning notch plate 7 is shortened on the high speed side; A high/low speed lever positioning mechanism for power mobile work equipment characterized by a longer setting on the low speed side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19596886U JPH0318984Y2 (en) | 1986-12-22 | 1986-12-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19596886U JPH0318984Y2 (en) | 1986-12-22 | 1986-12-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63103116U JPS63103116U (en) | 1988-07-04 |
| JPH0318984Y2 true JPH0318984Y2 (en) | 1991-04-22 |
Family
ID=31154349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19596886U Expired JPH0318984Y2 (en) | 1986-12-22 | 1986-12-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0318984Y2 (en) |
-
1986
- 1986-12-22 JP JP19596886U patent/JPH0318984Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63103116U (en) | 1988-07-04 |
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