JP2509615Y2 - Parking brake device for traveling vehicle with key shift mission - Google Patents
Parking brake device for traveling vehicle with key shift missionInfo
- Publication number
- JP2509615Y2 JP2509615Y2 JP1988133907U JP13390788U JP2509615Y2 JP 2509615 Y2 JP2509615 Y2 JP 2509615Y2 JP 1988133907 U JP1988133907 U JP 1988133907U JP 13390788 U JP13390788 U JP 13390788U JP 2509615 Y2 JP2509615 Y2 JP 2509615Y2
- Authority
- JP
- Japan
- Prior art keywords
- transmission shaft
- key
- lever
- fixing member
- mission
- 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
Landscapes
- Gear-Shifting Mechanisms (AREA)
- Control Of Transmission Device (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は，伝動軸に設けられたキーを軸上シフトす
ることで，伝動軸に遊嵌された回転数の異なる複数のギ
アのいずれかとこのキーとの係合を変え，伝動軸の変速
を行うキーシフト機構からなるミッション（以下，キー
シフトミッションという）を有する走行車輌の駐車ブレ
ーキ装置に関するものである。[Detailed Description of the Invention] [Industrial field of application] The present invention shifts a key provided on a transmission shaft on the shaft so that one of a plurality of gears with different rotational speeds is loosely fitted on the transmission shaft. The present invention relates to a parking brake device for a traveling vehicle having a mission (hereinafter, referred to as a key shift mission) including a key shift mechanism that shifts the transmission shaft by changing the engagement with the key.
キーシフトミッションは比較的狭い幅で多くの変速段
数を得られる利点があるから，走行車輌のミッション等
に多く用いられている。Key shift missions are often used for traveling vehicle missions, etc., because they have the advantage of being able to obtain a large number of gears with a relatively narrow width.
一方，走行車輌の場合は，駐車ブレーキが必要になる
が，このブレーキをミッション側に設けることで構造が
簡単になることから，実開昭61−135056号に見られるよ
うに，適宜な伝動軸にブレーキ用のディスクを嵌着し，
これにブレーキ機構を施している。On the other hand, in the case of a traveling vehicle, a parking brake is required, but since the structure is simplified by providing this brake on the mission side, an appropriate transmission shaft can be used as seen in Japanese Utility Model Laid-Open No. 61-135056. Fit the disc for the brake to
A brake mechanism is applied to this.
しかしながら，このような構造をとったとしても，ブ
レーキディスクやブレーキシュー，さらには，このブレ
ーキシューを作動させるためのレバーやリンク機構を別
に必要とすることは明らかである。However, even with such a structure, it is clear that a brake disc, a brake shoe, and further a lever and a link mechanism for operating the brake shoe are separately required.
この考案は，このような問題点に対処するために案出
されたものであって，その目的とする処は，キーシフト
機構にブレーキ機構を並べ，これを操作するためのレバ
ーやリンク機構を変速用のそれで代用することにある。The present invention has been devised to address such a problem, and its purpose is to arrange a brake mechanism on a key shift mechanism and shift a lever or a link mechanism for operating the brake mechanism. It is to substitute it for that.
すなわち，この考案は，伝動軸上にスライド自在に嵌
装したシフタにピンの回りにこの伝動軸外周に浮上回動
するレバーキーを設け，このレバーキーを前記伝動軸上
に異なる回転数で遊嵌並置されているギア群のいずれか
のギアの内周に選択係合させることで，前記ギアとこの
伝動軸との動力結合を図るキーシフトミッションを有す
る走行車輌において，内周に前記レバーキーに係合する
係合溝を形成した固定部材を前記ギア群の端に並置し，
この固定部材と前記レバーキーとを係合することで，前
記伝動軸をロックさせるとともに，この固定部材で前記
伝動軸の孔を塞ぐ蓋を兼用したことを特徴とするキーシ
フトミッションを有する走行車輌の駐車ブレーキ装置を
提供したものである。That is, in this invention, a shifter slidably fitted on a transmission shaft is provided with a lever key that floats around the transmission shaft around the pin, and the lever key is loosely mounted side by side on the transmission shaft at different rotational speeds. In a traveling vehicle having a key shift mission that achieves power coupling between the gear and the transmission shaft by selectively engaging the inner periphery of one of the gears in the gear group, the lever key is engaged on the inner periphery. The fixing member having the engaging groove is juxtaposed to the end of the gear group,
By engaging the fixing member and the lever key, the transmission shaft is locked, and the fixing member also serves as a lid for closing the hole of the transmission shaft. Parking of a traveling vehicle having a key shift mission. It provides a braking device.
以上の手段をとることにより，レバーキーを固定部材
に係合すれば，伝動軸にブレーキ作用が付与されるか
ら，この操作をシフタに連係する変速用のレバーやリン
ク機構で代替えすることができる。そして，この場合に
おいて，ミッションの幅は狭くて足り，非常にコンパク
トなものとすることができる。By adopting the above means, when the lever key is engaged with the fixed member, a braking action is imparted to the transmission shaft, and therefore this operation can be replaced by a gear shift lever or link mechanism linked to the shifter. And in this case, the width of the mission is narrow and sufficient, and can be made very compact.
以下，この考案の実施例を図面を参照して説明する
が，第１図はこの考案に係るミッションの要部断面図，
第２図，第３図は第１図のII−II断面図,III−III断面
図である。An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a main part of a mission according to the present invention.
2 and 3 are a II-II sectional view and a III-III sectional view of FIG.
ミッション内の上流側伝動軸１に常時回転している異
なる歯数の複数（本例では３個）のギア2,3,4を固嵌す
るとともに，このギア2,3,4に常時噛合いするギア群
（本例では同じく三つのギア）5,6,7を下流側伝動軸８
に並置遊嵌してある。A plurality of gears (3 in this example) having different numbers of teeth, which are constantly rotating, are fixedly fitted to the upstream transmission shaft 1 in the mission, and the gears 2, 3, 4 are constantly meshed. The gear group (three gears in this example) 5,6,7
It is fitted side by side.
ギア5,6,7のいずれかと伝動軸８との動力結合を以下
のキーシフトチェンジ機構で行うのであるが，伝動軸８
上にスライド自在に設けたシフタ９にピン10を中心とし
て伝動軸８上を浮沈回動するレバーキー11を伝動軸８の
軸方向に形成された装着溝12内に嵌入する形態で設け，
その先端の作用部11aを前記ギア5,6,7内周に形成された
係合溝5a,6a,7aのいずれかに係合することで，動力的結
合を行うのである。Power transmission between any one of the gears 5, 6 and 7 and the transmission shaft 8 is performed by the following key shift change mechanism.
A shifter 9 provided slidably above is provided with a lever key 11 for pivoting up and down on the transmission shaft 8 about a pin 10 in a mounting groove 12 formed in the axial direction of the transmission shaft 8.
By engaging the action portion 11a at the tip thereof with one of the engagement grooves 5a, 6a, 7a formed in the inner circumference of the gears 5, 6, 7 to perform the dynamic coupling.
レバーキー11の浮沈付勢力であるが，ここでは，シフ
タ９とレバーキー11間にスプリング13を介し，その弾発
力でレバーキー11を常時浮上側に弾発させる構造をと
る。Regarding the urging and sinking force of the lever key 11, here, a structure is adopted in which a spring 13 is interposed between the shifter 9 and the lever key 11 and the lever key 11 is always elastically bulged upward by its elastic force.
以上により，シフタ９をこれに連係するフォーク（図
示省略）によって伝動軸８上所定位置にスライドさせる
と，レバーキー11の作用部11aとギア5,6,7は選択係合す
ることになるから，係合したギア5,6,7の回転力は伝動
軸８へ伝達されることになり，ここに変速機構を具現す
ることになるのである。As described above, when the shifter 9 is slid to a predetermined position on the transmission shaft 8 by a fork (not shown) associated therewith, the action portion 11a of the lever key 11 and the gears 5, 6, 7 are selectively engaged. The rotational force of the engaged gears 5, 6, 7 is transmitted to the transmission shaft 8, and the transmission mechanism is embodied here.
次に，この考案では，内周に前記レバーキー11の作用
部11aに係合する係合溝14aを形成した固定部材14を前記
ギア群5,6,7の端に並べて設けるのである（本例では，
ギア群5,6,7の隣りに中立位置用のベアリング15を装設
してあるが，この固定部材14はこのベアリング15のすぐ
隣りに設置する）。Next, in this invention, a fixing member 14 having an engaging groove 14a for engaging with the operating portion 11a of the lever key 11 is provided on the inner circumference side by side at the ends of the gear groups 5, 6, 7. Then,
A bearing 15 for the neutral position is installed next to the gear groups 5, 6, 7 and the fixing member 14 is installed immediately next to the bearing 15.).
これにより，レバーキー11をギア群5,6,7の隣りの位
置（正確には中立位置を越えた位置まで）まで動かし，
その作用部11aを固定部材14の係合溝14aに係合させる
と，伝動軸８はロックされた状態になり，駐車ブレーキ
として作用する。さらに，この固定部材14によって伝動
軸８を支持するベアリング15の孔の蓋を兼用する。As a result, the lever key 11 is moved to a position next to the gear groups 5, 6, 7 (to be exact, a position beyond the neutral position),
When the acting portion 11a is engaged with the engaging groove 14a of the fixing member 14, the transmission shaft 8 is locked and acts as a parking brake. Further, the fixing member 14 also serves as a lid for the hole of the bearing 15 that supports the transmission shaft 8.
以上，この考案は前記したものであるから，次のよう
な効果が期待できる。As described above, since the present invention has been described above, the following effects can be expected.
ｉ）駐車ブレーキ専用のブレーキディスクやシュー，さ
らに，これを操作するためのリンク機構やレバー等を不
要とするから，それだけ構造が簡単になり，コストも安
くなる。i) Since the brake discs and shoes for the parking brake and the link mechanism and levers for operating them are not required, the structure becomes simpler and the cost is lower.
ii）キーシフトチェンジを行うための操作部材で駐車ブ
レーキ操作が可能になるので，操作が簡略される。ii) Since the parking brake can be operated with the operation member for performing the key shift change, the operation is simplified.
iii）駐車時，伝動軸８には一定のトルクがかかった状
態になるので，レバーキー11の作用部11aと固定部材14
の係合溝14aとは常に強圧された状態で外れ難い。した
がって，ブレーキとして十分に作用し，レバーキー11
（あるいは操作レバー）の外れ防止等の特別のディテン
ト機構等も必要としない。iii) Since a certain torque is applied to the transmission shaft 8 during parking, the acting portion 11a of the lever key 11 and the fixing member 14 are
It is difficult to disengage from the engaging groove 14a under constant pressure. Therefore, it works well as a brake and the lever key 11
No special detent mechanism or the like for preventing the (or operation lever) from coming off is required.
iv）固定部材14は伝動軸８のギア群のすぐ隣に設置さ
れ，しかも，これで伝動軸８を支持するベアリング15の
孔を塞ぐ蓋を兼用させたものであるから，伝動軸８の長
手方向の長さ，すなわち，ミッションケースの幅は狭く
て足り，全体としてコンパクトなものとすることができ
る。iv) Since the fixing member 14 is installed immediately next to the gear group of the transmission shaft 8 and also serves as a lid that closes the hole of the bearing 15 that supports the transmission shaft 8, the length of the transmission shaft 8 is long. The length in the direction, that is, the width of the mission case can be small, and the overall size can be made compact.
第１図はこの考案に係るミッションの要部断面図，第２
図，第３図は第１図のII−II断面図,III−III断面図で
ある。 （符号） ５……ギア群 ６…… 〃 ７…… 〃 ８……伝動軸 ９……シフタ 10……ピン 11……レバーキー 14……固定部材 14a…… 〃 の係合溝FIG. 1 is a sectional view of a main part of a mission according to the present invention
FIG. 3 and FIG. 3 are a II-II sectional view and a III-III sectional view of FIG. (Code) 5 …… Gear group 6 …… 〃 7 …… 〃 8 …… Transmission shaft 9 …… Shifter 10 …… Pin 11 …… Lever key 14 …… Fixing member 14a …… 〃 engaging groove
Claims (1)
シフタ（９）にピン（10）の回りにこの伝動軸（８）外
周に浮上回動するレバーキー（11）を設け，このレバー
キー（11）を前記伝動軸（８）上に異なる回転数で遊嵌
並置されているギア群（５），（６），（７）のいずれ
かのギア（５），（６），（７）の内周に選択係合させ
ることで，前記ギア（５），（６），（７）とこの伝動
軸（８）との動力結合を図るキーシフトミッションを有
する走行車輌において，内周に前記レバーキー（11）に
係合する係合溝（14a）を形成した固定部材（14）を前
記ギア群（５），（６），（７）の端に並置し，この固
定部材（14）と前記レバーキー（11）とを係合すること
で，前記伝動軸（８）をロックさせるとともに，この固
定部材（14）で前記伝動軸（８）の孔を塞ぐ蓋を兼用し
たことを特徴とするキーシフトミッションを有する走行
車輌の駐車ブレーキ装置。Claims: 1. A shifter (9) slidably fitted on a transmission shaft (8) is provided with a lever key (11) around the pin (10) for floating rotation around the periphery of the transmission shaft (8). Any one of the gear groups (5), (6) and (7) in which the lever key (11) is loosely fitted and juxtaposed on the transmission shaft (8) at different rotational speeds (5), (6), ( By selectively engaging the inner circumference of 7) with the gear (5), (6), (7) and the power transmission shaft (8), a running vehicle having a key shift mission for power coupling is formed on the inner circumference. A fixing member (14) having an engaging groove (14a) for engaging the lever key (11) is juxtaposed to the ends of the gear groups (5), (6), (7), and the fixing member (14) is arranged. By engaging the lever key (11) with the transmission shaft (8), the fixing member (14) is used to lock the transmission shaft. A parking brake device for a traveling vehicle having a key shift mission, which is also used as a lid for closing the hole of (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988133907U JP2509615Y2 (en) | 1988-10-12 | 1988-10-12 | Parking brake device for traveling vehicle with key shift mission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988133907U JP2509615Y2 (en) | 1988-10-12 | 1988-10-12 | Parking brake device for traveling vehicle with key shift mission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0254668U JPH0254668U (en) | 1990-04-20 |
| JP2509615Y2 true JP2509615Y2 (en) | 1996-09-04 |
Family
ID=31392202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988133907U Expired - Lifetime JP2509615Y2 (en) | 1988-10-12 | 1988-10-12 | Parking brake device for traveling vehicle with key shift mission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2509615Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003194097A (en) * | 2001-12-26 | 2003-07-09 | Kanzaki Kokyukoki Mfg Co Ltd | Gear fall preventing mechanism for transmission |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4713983A (en) | 1985-04-26 | 1987-12-22 | Rundle Kenneth P | Wide range transmission |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5941171Y2 (en) * | 1978-09-25 | 1984-11-26 | ヤンマーディーゼル株式会社 | Agricultural tractor park lock device |
| JPS61135056U (en) * | 1985-02-13 | 1986-08-22 |
-
1988
- 1988-10-12 JP JP1988133907U patent/JP2509615Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4713983A (en) | 1985-04-26 | 1987-12-22 | Rundle Kenneth P | Wide range transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0254668U (en) | 1990-04-20 |
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