JPH0135612Y2 - - Google Patents
Info
- Publication number
- JPH0135612Y2 JPH0135612Y2 JP8277783U JP8277783U JPH0135612Y2 JP H0135612 Y2 JPH0135612 Y2 JP H0135612Y2 JP 8277783 U JP8277783 U JP 8277783U JP 8277783 U JP8277783 U JP 8277783U JP H0135612 Y2 JPH0135612 Y2 JP H0135612Y2
- Authority
- JP
- Japan
- Prior art keywords
- transmission shaft
- tractor
- cover
- shaft
- safety cover
- 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 34
- 230000008602 contraction Effects 0.000 description 3
- 238000004040 coloring Methods 0.000 description 2
Landscapes
- Agricultural Machines (AREA)
Description
【考案の詳細な説明】
本考案は、トラクタから作業機に動力を伝達す
る伸縮自在伝動軸の安全カバーに関するものであ
る。[Detailed Description of the Invention] The present invention relates to a safety cover for a telescoping power transmission shaft that transmits power from a tractor to a working machine.
一般に、トラクタに三点リンクを介して作業機
を昇降可能に連結する場合には、トラクタの
PTO軸から作業機の入力軸に対し、両端にユニ
バーサルジヨイントを有し、その中間にスプライ
ン嵌合して伸縮自在な伝動軸を介して動力が伝達
され、このユニバーサルジヨイントおよび伝動軸
には、回転中に他の物が巻込まれると危険なので
安全カバーが設けられている。このような伸縮自
在伝動軸（ユニバーサルジヨイントを含む）は、
トラクタに三点リンクを介して作業機を装置して
昇降するとき、最上降位置から最下降位置まで無
理なく伸縮できて動力を伝達せねばならず、この
ため、トラクタのPTO軸から作業機の入力軸ま
での距離に適合するものでないといけない。例え
ば、伸縮自在伝動軸の長さが短いと、ジヨイント
スリーブ（スプライン嵌合部）のラツプ部分の長
さが不足して強度不足となり、また、伝動軸の長
さが長すぎると、PTO軸あるいは入力軸を破損
することになる。 Generally, when connecting a work equipment to a tractor so that it can be raised and lowered via a three-point link,
Power is transmitted from the PTO shaft to the input shaft of the work equipment via a transmission shaft that has a universal joint at both ends and is fitted with a spline in the middle to allow for telescopic expansion and contraction. Since it is dangerous if other objects get caught during rotation, a safety cover is provided. Such telescopic transmission shafts (including universal joints) are
When a work equipment is attached to a tractor via a three-point link and raised or lowered, it must be able to extend and retract effortlessly from the highest to lowest position and transmit power. It must be compatible with the distance to the input shaft. For example, if the length of the telescoping power transmission shaft is short, the length of the lap part of the joint sleeve (spline fitting part) will be insufficient and the strength will be insufficient, and if the length of the power transmission shaft is too long, the PTO shaft Otherwise, the input shaft will be damaged.
このため、従来はトラクタに作業機を装着する
とき、適合伝動軸が明確な場合以外は、PTO軸
と入力軸間の距離をスケールで測定し、伝動軸の
適、不適を判断しており、その操作が面倒であつ
た。 For this reason, conventionally, when installing a work machine on a tractor, unless the compatible transmission shaft is clear, the distance between the PTO shaft and the input shaft is measured with a scale to determine whether the transmission shaft is suitable or not. The operation was troublesome.
本考案は、上記の事情にかんがみなされたもの
で、トラクタと作業機間に伝動軸をセツトした状
態で、その使用適合範囲が一目で判断できるよう
にした伸縮自在伝動軸の安全カバーを提供しよう
とするものである。 The present invention was developed in consideration of the above circumstances, and aims to provide a safety cover for a telescoping power transmission shaft that allows the range of suitability for use to be determined at a glance when the power transmission shaft is set between a tractor and a working machine. That is.
この目的を達成するため、本考案は、安全カバ
ーを、トラクタ側に取付けられた固定側伝動軸に
装着される固定カバーと、作業機側伝動軸に取付
けられた可動カバーとで構成し、固定カバーに、
可動側伝動軸の適正摺動範囲を示す識別を施して
なることを特徴とするものである。 In order to achieve this objective, the present invention consists of a fixed cover attached to the fixed side transmission shaft attached to the tractor side and a movable cover attached to the work equipment side transmission shaft. on the cover,
It is characterized by being provided with identification indicating the appropriate sliding range of the movable side transmission shaft.
以下、図示した実施例を参照して本考案を説明
する。 Hereinafter, the present invention will be explained with reference to the illustrated embodiments.
図において、符号１は伸縮自在伝動軸で、この
伝動軸１は、図示省略したが、トラクタの後部に
三点リンクを介して昇降可能に連結される作業機
の入力軸と、トラクタのPTO軸との間に装着さ
れてトラクタから作業機に動力を伝達するもので
あり、２はトラクタ側のユニバーサルジヨイン
ト、３は作業機側のユニバーサルジヨイントであ
る。このユニバーサルジヨイント２，３間には、
図示しないがジヨイント２側にスプライン軸、ジ
ヨイント３側にスプライン筒軸がそれぞれ設けら
れていて相互に嵌合していて長さ方向に伸縮自在
となつている。 In the figure, reference numeral 1 denotes a telescoping power transmission shaft, and although not shown, the power transmission shaft 1 is connected to the input shaft of a working machine that is movably connected to the rear of the tractor via a three-point link, and the PTO shaft of the tractor. 2 is a universal joint on the tractor side, and 3 is a universal joint on the working machine side. Between this universal joint 2 and 3,
Although not shown, a spline shaft is provided on the joint 2 side, and a spline cylindrical shaft is provided on the joint 3 side, which are fitted into each other and are freely expandable and contractable in the length direction.
前記ユニバーサルジヨイント２およびスプライ
ン軸側にはトラクタ側安全カバー４が被覆してあ
り、また、ユニバーサルジヨイント３およびスプ
ライン筒軸側には作業機側安全カバー５が被覆し
てある。そしてカバー４の直線部４ａは細く、カ
バー５の直線部５ａは太く、かつカバー４の直線
部を摺動自在に嵌合するよう形成されており、カ
バー４の直線部４ａには、一定範囲に着色部６が
設けてある。この着色部６の範囲は、スプライン
軸とスプライン筒軸とが摺動する安全範囲を示す
もので、カバー５の直線部５ａの端部５ｂを基準
にして、伝動軸の伸縮適合範囲が識別できるよう
になつている。 A tractor-side safety cover 4 covers the universal joint 2 and the spline shaft side, and a work machine-side safety cover 5 covers the universal joint 3 and the spline cylinder shaft side. The linear portion 4a of the cover 4 is thin, and the linear portion 5a of the cover 5 is thick. A colored section 6 is provided at the top. The range of this colored part 6 indicates the safe range in which the spline shaft and the spline cylindrical shaft slide, and the expansion/contraction compatible range of the transmission shaft can be identified based on the end 5b of the straight part 5a of the cover 5. It's becoming like that.
このように構成された伸縮自在伝動軸１を、ト
ラクタに三点リンクを介して昇降可能に連結され
た作業機の入力軸とトラクタのPTO軸との間に
装着すると、三点リンクを作動して作業機を昇降
したとき、伸縮自在伝動軸１がそのスプライン軸
とスプライン筒軸との摺動によつて長さ方向に伸
縮し、通常は作業機を下降させた状態で作業機に
動力を伝達し、トラクタの走行と共に作業を行
い、また、安全カバー４，５は、伝動軸１の伸縮
と共に摺動し、他のものが伝動軸１に巻きつくの
を防止する。 When the telescoping power transmission shaft 1 configured in this manner is installed between the input shaft of a working machine that is connected to a tractor so that it can be raised and lowered via a three-point link, and the PTO shaft of the tractor, the three-point link is activated. When the work machine is moved up and down, the telescoping power transmission shaft 1 expands and contracts in the length direction due to sliding between the spline shaft and the spline cylinder shaft, and normally the power is applied to the work machine while the work machine is lowered. The safety covers 4 and 5 slide as the transmission shaft 1 expands and contracts to prevent other objects from wrapping around the transmission shaft 1.
この安全カバー４，５の摺動時に、本考案にお
いては、トラクタ側安全カバー４、即ち固定側カ
バーの直線部に着色部６が設けてあり、これに対
し摺動する作業機側安全カバー５の端部５ｂによ
つて着色部６が識別でき、着色部６が端部５ｂ内
にあれば、この伝動軸１は適合していることにな
り、着色部６が端部５ｂから外れていれば伝動軸
１が適合していないことになり、その識別は一目
で分る。 When the safety covers 4 and 5 slide, in the present invention, a colored part 6 is provided on the straight part of the tractor side safety cover 4, that is, the fixed side cover, and the work equipment side safety cover 5 slides against this. The colored part 6 can be identified by the end 5b, and if the colored part 6 is within the end 5b, this means that the transmission shaft 1 is compatible, and if the colored part 6 does not come off the end 5b. If so, it means that the transmission shaft 1 is not compatible, and the identification can be made at a glance.
なお、着色部６は、色採に限らず目盛等で表示
してもよく、要するに伝動軸１の適正伸縮範囲を
表示するものであればよい。 Note that the colored portion 6 is not limited to coloring, and may be displayed using a scale or the like, and in short, any coloring portion 6 may be used as long as it displays the appropriate expansion/contraction range of the power transmission shaft 1.
以上説明したように、本考案の伸縮自在伝動軸
の安全カバーによれば、固定側カバーに、可動側
伝動軸の適正摺動範囲を表示させたので、一目で
その伝動軸の適否が判別でき、トラクタのPTO
軸と作業機の入力軸との間をスケールで計るなど
の面倒な操作が必要でなく、取扱い性が容易で便
利である。また、安全カバーに識別を施したの
で、伝動軸の安全と共に識別を兼ねることがで
き、安全カバーの用途が拡大できる。 As explained above, according to the safety cover for the telescoping power transmission shaft of the present invention, the proper sliding range of the movable power transmission shaft is displayed on the fixed side cover, so it is possible to determine at a glance whether or not the power transmission shaft is suitable. , tractor PTO
There is no need for troublesome operations such as measuring between the shaft and the input shaft of the working machine using a scale, and the handling is easy and convenient. Furthermore, since the safety cover is marked with identification, it can serve both for safety and identification of the transmission shaft, and the uses of the safety cover can be expanded.
図面は本考案の実施例を示す伸縮自在伝動軸の
側面図である。
１……伸縮自在伝動軸、２……トラクタ側のユ
ニバーサルジヨイント、３……作業機側のユニバ
ーサルジヨイント、４……トラクタ側安全カバ
ー、４ａ……直線部、５……作業機側安全カバ
ー、５ａ……直線部、５ｂ……端部、６……着色
部。
The drawing is a side view of a telescoping power transmission shaft showing an embodiment of the present invention. 1... Telescopic power transmission shaft, 2... Universal joint on the tractor side, 3... Universal joint on the work equipment side, 4... Safety cover on the tractor side, 4a... Straight section, 5... Safety on the work equipment side Cover, 5a... straight part, 5b... end part, 6... colored part.
Claims (1)
能に連結し、この作業機にトラクタから伸縮自在
伝動軸を介して動力を伝達し、該伝動軸に安全カ
バーを設けたものにおいて、前記安全カバーは、
トラクタ側に取付けられた固定側伝動軸に装着さ
れる固定カバーと、作業機側伝動軸に取付けられ
た可動カバーとからなり、固定カバーに、可動側
伝動軸の適正摺動範囲を示す識別を施してなるこ
とを特徴とする伸縮自在伝動軸の安全カバー。 A work equipment is connected to a tractor so as to be movable up and down via a three-point link, power is transmitted from the tractor to the work equipment through a telescoping transmission shaft, and a safety cover is provided on the transmission shaft, wherein the safety cover is provided with a safety cover. teeth,
It consists of a fixed cover attached to the fixed side transmission shaft attached to the tractor side and a movable cover attached to the work equipment side transmission shaft.The fixed cover has an identification indicating the appropriate sliding range of the movable side transmission shaft. A safety cover for a telescoping power transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8277783U JPS59187913U (en) | 1983-05-31 | 1983-05-31 | Safety cover for telescopic transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8277783U JPS59187913U (en) | 1983-05-31 | 1983-05-31 | Safety cover for telescopic transmission shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59187913U JPS59187913U (en) | 1984-12-13 |
| JPH0135612Y2 true JPH0135612Y2 (en) | 1989-10-31 |
Family
ID=30212734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8277783U Granted JPS59187913U (en) | 1983-05-31 | 1983-05-31 | Safety cover for telescopic transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59187913U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0218349Y2 (en) * | 1985-02-22 | 1990-05-23 |
-
1983
- 1983-05-31 JP JP8277783U patent/JPS59187913U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59187913U (en) | 1984-12-13 |
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