JPH0618861Y2 - Bonnet structure of tractor - Google Patents
Bonnet structure of tractorInfo
- Publication number
- JPH0618861Y2 JPH0618861Y2 JP1987074630U JP7463087U JPH0618861Y2 JP H0618861 Y2 JPH0618861 Y2 JP H0618861Y2 JP 1987074630 U JP1987074630 U JP 1987074630U JP 7463087 U JP7463087 U JP 7463087U JP H0618861 Y2 JPH0618861 Y2 JP H0618861Y2
- Authority
- JP
- Japan
- Prior art keywords
- bonnet
- locking pin
- side plate
- locking
- locking piece
- 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
- Superstructure Of Vehicle (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、トラクタのボンネット構造に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a hood structure of a tractor.
（従来の技術） 従来、トラクタのボンネット構造として、ボンネットが
前部ボンネットと中間ボンネットと後部ボンネットとに
分割構成されたものがあった。(Prior Art) Conventionally, as a bonnet structure of a tractor, there has been a structure in which a bonnet is divided into a front bonnet, an intermediate bonnet, and a rear bonnet.
そして、前部ボンネットと後部ボンネットとは中間ボン
ネットにより互いに連結された構造とされていた。また
中間ボンネットは天板と左右の側板とからなり、天板は
一側で側板に前後方向の軸心回りに回動自在に枢支され
ていた。従って左右の側板により前部ボンネットと後部
ボンネットとが互いに連結されていた。The front bonnet and the rear bonnet are connected to each other by an intermediate bonnet. The intermediate bonnet was composed of a top plate and left and right side plates, and the top plate was pivotally supported on one side by the side plates so as to be rotatable about an axis in the front-rear direction. Therefore, the front bonnet and the rear bonnet were connected to each other by the left and right side plates.
（考案が解決しようとする問題点） しかしながら、上記構造にあっては、燃料噴射ポンプが
エンジン側部と側板との間に位置され、燃料噴射ポンプ
のエア抜き作業を行なう場合には、側板を取外すか、或
いはエンジンと側板との狭い間隔より手を挿入して行な
わなければならず、面倒であった。(Problems to be solved by the invention) However, in the above structure, when the fuel injection pump is located between the engine side portion and the side plate and the air injection operation of the fuel injection pump is performed, the side plate is not installed. It was troublesome because it had to be removed or the hand had to be inserted due to the narrow gap between the engine and the side plate.
そこで、本考案は上記問題点に鑑み、メンテナンスの容
易化を図ることを目的とする。Therefore, in view of the above problems, the present invention aims at facilitating maintenance.
（問題点を解決するための手段） その技術的手段はエンジン２等の内部機器を覆うボンネ
ット１７が前部ボンネット１８と中間ボンネット１９と
後部ボンネット２１とからなるトラクタにおいて、 中間ボンネット１９の側板２３が、上部側で前部ボンネ
ット１７と後部ボンネット２１とに前後同軸廻りに回動
自在に枢支され、この側板２３の下部側において前部ボ
ンネット１８及び後部ボンネット２１から中間ボンネッ
ト１９側に夫々係止ピン２９が突設され、前記側板２３
下部の前後両側に、該側板２３の上部枢支部廻りの回動
によって前記係止ピン２９に左右方向外方側から嵌合す
る嵌合凹部３１と、左右方向内側部が前後軸廻りに回動
自在に枢支されており、この回動によって外側部が係止
ピン２９の嵌合凹部３１内への嵌入軌跡上に出退自在に
突出して係止ピン２９に接当し該係止ピン２９の嵌合凹
部３１からの離脱を阻止する係止片３３と、係止片３３
を係止ピン２９の嵌入軌跡上に突出する方向に弾発付勢
するバネ体３７とを設け、前記係止ピン２９に接当して
これの抜止めをする係止片３３の接当面４０は、係止片
３３が係止ピン２９の嵌入軌跡上に突出する方向の前方
側から後方側に向けて、係止片３３の回動支点からの距
離が漸次大となる傾斜面に形成されている点にある。(Means for Solving Problems) The technical means is a tractor in which the bonnet 17 covering the internal equipment such as the engine 2 is composed of a front bonnet 18, an intermediate bonnet 19, and a rear bonnet 21, and a side plate 23 of the intermediate bonnet 19 is used. Is rotatably supported by the front bonnet 17 and the rear bonnet 21 on the upper side so as to be rotatable coaxially around the front and rear, and on the lower side of the side plate 23, the front bonnet 18 and the rear bonnet 21 are engaged with the intermediate bonnet 19 side, respectively. A stop pin 29 is provided so as to project from the side plate 23.
On both front and rear sides of the lower part, a fitting concave portion 31 that fits to the locking pin 29 from the outer side in the left-right direction by rotation of the side plate 23 around the upper pivot portion, and an inner part in the left-right direction rotates about the front-rear axis. It is pivotally supported freely, and by this rotation, the outer side part projects to and from the fitting locus of the locking pin 29 into the fitting recess 31 and abuts on the locking pin 29 to come into contact therewith. Locking piece 33 for preventing the locking piece 33 from being disengaged from the fitting recess 31 and the locking piece 33.
Is provided with a spring body 37 for elastically urging the locking pin 29 in a direction projecting on the fitting path of the locking pin 29, and the contact surface 40 of the locking piece 33 for contacting the locking pin 29 to prevent the locking pin from coming off. Is formed on an inclined surface in which the distance from the rotation fulcrum of the locking piece 33 gradually increases from the front side to the rear side in the direction in which the locking piece 33 projects on the fitting locus of the locking pin 29. There is a point.
（作用） 本考案によれば、側板の内側方に位置された内部機器の
点検整備を行う場合には、係止片を回動操作して嵌入軌
跡上から退避させ、その状態を保持させたまま、側板を
左右方向外方側に回動させればよい。(Operation) According to the present invention, when performing inspection and maintenance of the internal equipment located inside the side plate, the locking piece is rotated to retract from the fitting locus, and the state is maintained. As it is, the side plate may be rotated outward in the left-right direction.
また、側板を閉める場合には、側板を左右方向内方側に
回動させて押し込み操作することにより、係止片が係止
ピンに相対的に押圧されて嵌入軌跡上から退避して嵌合
凹部の係止ピンへの嵌合を許容すると共に、係止ピンが
嵌合凹部に嵌入した状態で係止片がバネ体の弾発力によ
って嵌入軌跡上に突出して係止ピンの嵌合凹部からの離
脱が阻止され、ここに側板が閉鎖状態にロックされる。Also, when closing the side plate, the side plate is rotated inward in the left-right direction and pushed in, so that the locking piece is relatively pressed by the locking pin and retracts from the fitting track to be fitted. The recess is allowed to fit into the lock pin, and the lock pin is fitted into the lock recess. Is disengaged and the side plate is locked closed.
このとき、係止片の係止ピンへの接当面は、係止片の回
動支点からの距離が、嵌入軌跡上に突出する方向の前方
側から後方側に向けて漸次大となる傾斜面に形成され、
係止片はその接当面で係止ピンを押圧するように弾発付
勢されていることから、バネ体の付勢力は側板を左右方
向内方側に引き寄せる方向及び引き下げる方向に作用
し、嵌合凹部の内面と係止片の接当面とで係止ピンを確
りと挟持して、側板がガタつきなく閉鎖されると共に、
確実に位置決めでき、中間ボンネットの側板外面を、前
後ボンネットの側板部外面と面一状とすることができ
る。At this time, the contact surface of the locking piece to the locking pin is an inclined surface in which the distance from the rotation fulcrum of the locking piece gradually increases from the front side toward the rear side in the direction of protruding on the fitting locus. Formed in
Since the locking piece is elastically urged so as to press the locking pin on its abutment surface, the urging force of the spring body acts in the direction of pulling the side plate inward in the left-right direction and in the direction of pulling it down, The locking pin is firmly sandwiched between the inner surface of the fitting recess and the contact surface of the locking piece, and the side plate is closed without rattling, and
The side plate outer surface of the intermediate bonnet can be surely positioned, and the side plate outer surfaces of the front and rear bonnets can be made flush with each other.
（実施例） 以下、本考案の実施例を図面に基づいて説明すると、第
１図乃至第４図において、１はトラクタで、エンジン
２、クラッチケース３、ミッションケース４等を連結す
ることで車体５が構成されている。(Embodiment) Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In FIGS. 1 to 4, reference numeral 1 is a tractor, and a vehicle body is formed by connecting an engine 2, a clutch case 3, a transmission case 4 and the like. 5 are configured.
エンジン２のオイルパン６の前部は上向きの凹部７が形
成され、この凹部７内に位置して前車軸８がオイルパン
６の受台部９に支持されている。そして動力取出軸10は
オイルパン６を挿通して前車軸８部に連結されている。
11は前輪、12は後輪である。従って、ホイールベースを
短かくできると共に、前車軸８上部にエンジン２が位置
されるため、前輪11荷重を大きく確保することができ
る。An upward recess 7 is formed in the front part of the oil pan 6 of the engine 2, and the front axle 8 is supported by the pedestal part 9 of the oil pan 6 in the recess 7. The power take-off shaft 10 is inserted through the oil pan 6 and connected to the front axle 8.
11 is a front wheel and 12 is a rear wheel. Therefore, the wheel base can be shortened, and since the engine 2 is located above the front axle 8, a large load on the front wheels 11 can be secured.
エンジン２の下部両側より支持フレーム13が前方突出状
に設けられており、支持フレーム13上にラジエータ14や
エアクリーナ、バッテリ等が備えられている。A support frame 13 is provided so as to project forward from both sides of the lower portion of the engine 2, and a radiator 14, an air cleaner, a battery, and the like are provided on the support frame 13.
17はボンネットで、前部のラジエータ14、エアクリー
ナ、バッテリ等を覆う前部ボンネット18と、中間のエン
ジン２等を覆う中間ボンネット19と、後部の燃料タンク
20等を覆う後部ボンネット21とから構成されている。Reference numeral 17 denotes a bonnet, which includes a front hood 18 that covers the radiator 14, the air cleaner, the battery, and the like in the front, an intermediate bonnet 19 that covers the engine 2 in the middle, and a fuel tank in the rear.
It is composed of a rear bonnet 21 that covers 20 etc.
中間ボンネット19は左右両側の側板22，23と、側板22，
23間の上部を覆う天板24とからなる。The intermediate bonnet 19 includes side plates 22 and 23 on both left and right sides, and side plates 22 and 23.
It consists of a top plate 24 covering the upper part of the space 23.
一方の側板22はその前後で、前部ボンネット18の後端及
び後部ボンネット21の前端に夫々ボルト25締結されてい
る。例えば、上下の２か所で夫々ボルト25締結されてい
る。該側板22の上端部に取付片26が固着され、該取付片
26に天板24の一側が枢支され、ここに天板24は第４図仮
想線で示される如く、上下方向に開閉操作自在とされ
る。尚、取付片26は前後方向に離隔して複数備えられて
いる。また天板24を開姿勢で保持する保持機構や、閉姿
勢でロックする係脱自在なロック手段が適宜設けられて
いる。One side plate 22 is fastened with bolts 25 at the rear end of the front bonnet 18 and the front end of the rear bonnet 21, respectively. For example, bolts 25 are fastened at the upper and lower positions respectively. A mounting piece 26 is fixed to the upper end portion of the side plate 22.
One side of the top plate 24 is pivotally supported by 26, and the top plate 24 can be freely opened and closed in the vertical direction as shown by the phantom line in FIG. It should be noted that a plurality of mounting pieces 26 are provided so as to be separated in the front-rear direction. Further, a holding mechanism for holding the top plate 24 in the open position, and a detachable locking means for locking the top plate 24 in the closed position are appropriately provided.
他方の側板23はその上部で、前部ボンネット18の後端及
び後部ボンネット21の前端に夫々、ボルトや枢支ピン等
の枢支体27により同軸心回りに回動自在に枢支され、下
部側を第４図仮想線で示される如く、外側方に開操作自
在に構成している。また側板23の下部に対応する前部ボ
ンネット18の後端縁28及び後部ボンネット21の前端縁よ
り夫々、中間ボンネット19の側板23側に係止ピン２９が
突出状に設けられている。対応する側板23の前端縁30及
び後端縁には夫々、側板23の回動操作時に係止ピン29が
嵌脱自在に嵌入される嵌合凹部31が切欠き形成されてい
る。そして第１図に示される如く、側板23の閉状態にお
いては係止ピン29が嵌合凹部31の底部に位置した状態が
得られるよう構成されている。また各側板23の前端縁30
及び後端縁には嵌合凹部31の下側に位置して設けられた
支持ピン32に、前後方向軸回りに回動自在に係止片33が
枢支され、係止片33は支持ピン32回りの相対回動によ
り、係止ピン29の嵌合凹部31に対する嵌入軌跡上に下方
により出退自在に突出する突出部34を備えている。また
各係止片33には第１図及び第２図に示される如く、操作
片35が溶接等により一体的に固着され、操作片35の下端
は側板23の下端36より下方に突出状とされている。37は
コイルバネよりなるべくバネ体で、支持ピン32に外嵌状
に装着され、その一端部が側板23の下縁36上面に当接状
に係止され、他端部が操作片35の係止孔38に挿通状に係
止され、係止片33の突出部34が嵌入軌跡上に突出する方
向に弾発付勢している。また第１図に示される如く、操
作片35が側板23の下縁36に接離自在に当接して、係止片
33の突出部34が嵌入軌跡上に適宜量突出した状態で停止
するよう構成されている。The other side plate 23 is an upper part thereof and is rotatably supported around a coaxial center by a pivotal support body 27 such as a bolt or a pivot pin at the rear end of the front bonnet 18 and the front end of the rear bonnet 21, respectively, and the lower part. As shown by the phantom line in FIG. 4, the side is configured to be openable to the outside. Further, locking pins 29 are provided in a protruding shape on the side plate 23 side of the intermediate bonnet 19 from the rear end edge 28 of the front bonnet 18 and the front end edge of the rear bonnet 21 corresponding to the lower part of the side plate 23, respectively. A fitting recess 31 into which a locking pin 29 is removably fitted when the side plate 23 is rotated is cut out at the corresponding front end edge 30 and rear end edge of the side plate 23. As shown in FIG. 1, when the side plate 23 is closed, the locking pin 29 is located at the bottom of the fitting recess 31. Also, the front edge 30 of each side plate 23
Also, on the rear edge, a locking piece 33 is pivotally supported on a support pin 32 provided below the fitting recess 31 so as to be rotatable around the longitudinal axis, and the locking piece 33 is a support pin. By the relative rotation around 32, the protrusion 34 is provided on the fitting locus of the locking pin 29 into the fitting recess 31 so as to project downwards in a retractable manner. Further, as shown in FIGS. 1 and 2, an operation piece 35 is integrally fixed to each locking piece 33 by welding or the like, and a lower end of the operation piece 35 is projected downward from a lower end 36 of the side plate 23. Has been done. Reference numeral 37 denotes a spring body composed of a coil spring, which is externally fitted to the support pin 32, one end of which is abutted on the upper surface of the lower edge 36 of the side plate 23 and the other end of which is the operation piece 35. It is engaged with the hole 38 in a penetrating manner, and elastically urges the protruding portion 34 of the engaging piece 33 in the direction of protruding on the fitting locus. Further, as shown in FIG. 1, the operating piece 35 abuts on the lower edge 36 of the side plate 23 so as to freely come into contact with and separate from the lower edge 36, and
The projecting portions 34 of 33 are configured to stop in a state of projecting appropriately on the fitting locus.
前記突出部34は第１図に示される如く、係止ピン29を嵌
入案内する案内面39と離脱を阻止する阻止面（接当面）
40とからなる山形状に形成されており、前記阻止面40
は、係止片33の支持ピン32からの距離が、嵌入軌跡上に
突出する方向の前方側から後方側に向けて漸次大となる
傾斜面に形成されている。そして、これら嵌合凹部31、
係止片33、操作片35、バネ体37等により係止ピン29に係
脱自在な係止装置を構成している。As shown in FIG. 1, the protruding portion 34 has a guide surface 39 for inserting and guiding the locking pin 29 and a blocking surface (contacting surface) for preventing separation.
40 is formed in a mountain shape, and the blocking surface 40
Is formed on an inclined surface in which the distance of the locking piece 33 from the support pin 32 gradually increases from the front side to the rear side in the direction in which it projects on the fitting locus. Then, these fitting recesses 31,
The locking piece 33, the operation piece 35, the spring body 37 and the like constitute a locking device that can be engaged with and disengaged from the locking pin 29.
43は抜止めワッシャ、44は抜止めピンである。43 is a retaining washer and 44 is a retaining pin.
そして側板23とエンジン２との間に位置して燃料噴射ポ
ンプ42が取付けられている。A fuel injection pump 42 is mounted between the side plate 23 and the engine 2.
本考案の実施例は以上のように構成されており、燃料噴
射ポンプ42のエア抜き作業を行なう場合には、操作片35
をバネ体37の弾発力に抗して内側方に押込み操作すれ
ば、係止片33は支持ピン32回りに下向きに回動され、前
記嵌入軌跡上より退避し、ここに係止ピン29は嵌合凹部
31より離脱自在となり、側板23を枢支体27回りに開回動
すれば、燃料噴射ポンプ42のエア抜き作業を容易に行な
うことができる。また側板23を閉じる場合には、枢支体
27回りに閉回動させれば、係止ピン29と係止片33の案内
面39とが当接した状態が得られ、さらに押込み操作すれ
ば、係止ピン29は案内面39上を相対摺動すると共に、係
止片33をバネ体37の弾発力に抗して下向き回動させ、嵌
合凹部31の底部に位置した状態が得られる。この際、係
止ピン29は案内面39を通過しており、バネ体37の弾発力
により係止片33は上向き回動され、第１図に示される如
く、阻止面40と係止ピン29とがバネ体37による弾発付勢
のもとに当接した状態が得られる。従って、側板23の閉
状態において、係止ピン29に対し、係止片33の阻止面40
がくい込む方向に弾発付勢されており、側板23のガタ付
きが有効に防止できる。The embodiment of the present invention is configured as described above, and when the air injection work of the fuel injection pump 42 is performed, the operation piece 35
When the pushing member is pushed inward against the elastic force of the spring body 37, the locking piece 33 is rotated downward around the support pin 32 and retracts from the fitting path, and the locking pin 29 Is the fitting recess
When the side plate 23 is opened and rotated around the pivot 27, the air injection work of the fuel injection pump 42 can be easily performed. Also, when closing the side plate 23,
When the locking pin 29 and the guiding surface 39 of the locking piece 33 are brought into contact with each other by rotating the locking pin 29 around 27, the locking pin 29 is moved relative to the guiding surface 39 by further pushing operation. While sliding, the locking piece 33 is rotated downward against the elastic force of the spring body 37, and the state of being positioned at the bottom of the fitting recess 31 is obtained. At this time, the locking pin 29 has passed through the guide surface 39, and the locking piece 33 is rotated upward by the elastic force of the spring body 37, and as shown in FIG. It is possible to obtain a state in which 29 and 29 are brought into contact with each other under the elastic bias of the spring body 37. Therefore, in the closed state of the side plate 23, with respect to the locking pin 29, the blocking surface 40 of the locking piece 33.
It is elastically urged in the direction to dig in, and it is possible to effectively prevent rattling of the side plate 23.
以上のように、側板23の開閉操作が容易に行なえると共
に、エンジン２と側板23間に配設された燃料噴射ポンプ
42等の内部機器のメンテナンス性が向上できる。As described above, the side plate 23 can be easily opened and closed, and the fuel injection pump disposed between the engine 2 and the side plate 23 can be easily operated.
The maintainability of internal equipment such as 42 can be improved.
尚、側板23上部の枢支体27は、適宜、摩擦力を有し、適
宜摩擦力のもとに側板23を開閉操作可能に構成すれば、
側板23を所望回動姿勢で保持できる。The pivot body 27 on the upper side plate 23 has a frictional force, and if the side plate 23 can be opened and closed based on the frictional force,
The side plate 23 can be held in a desired rotation posture.
（考案の効果） 本考案によれば、係止片を回動操作して嵌入軌跡上から
退避させ、その状態を保持させてまま、側板を左右方向
外方側に回動させることで、側板が開けられ、また、側
板を左右方向内方側に回動させて押し込み操作すること
により、係止片が係止ピンに相対的に押圧されて嵌入軌
跡上から退避して嵌合凹部の係止ピンへの嵌合を許容す
ると共に、係止ピンが嵌合凹部に嵌入した状態で係止片
がバネ体の弾発力によって嵌入軌跡上に突出して係止ピ
ンの嵌合凹部からの離脱が阻止されて、側板が閉鎖状態
にロックされ、側板を容易に開閉できて、側板内方側に
位置された内部機器のメンテナンス性を向上できる。(Effect of the Invention) According to the present invention, the side plate is rotated laterally outward by rotating the locking piece to retract it from the fitting locus, and keeping that state. Is opened, and the side plate is rotated inward in the left-right direction and pushed in, so that the locking piece is relatively pressed by the locking pin and retracts from the fitting track to engage the fitting recess. Allows fitting to the stop pin, and with the locking pin fitted into the fitting recess, the locking piece projects onto the fitting track by the elastic force of the spring body, and the locking pin disengages from the fitting recess. Is blocked, the side plate is locked in the closed state, the side plate can be easily opened and closed, and the maintainability of the internal device positioned inside the side plate can be improved.
また、本考案では、特に、係止片の係止ピンへの接当面
は、係止片の回動支点からの距離が、嵌入軌跡上に突出
する方向の前方側から後方側に向けて漸次大となる傾斜
面に形成され、係止片はその接当面で係止ピンを押圧す
るように弾発付勢されていることから、バネ体の付勢力
は側板を左右方向内方側に引き寄せる方向及び引き下げ
る方向に作用し、嵌合凹部の内面と係止片の接当面とで
係止ピンを確りと挟持して、側板がガタつきなく閉鎖さ
れると共に、確実に位置決めでき、中間ボンネットの側
板外面を、前後ボンネットの側板部外面と面一状とする
ことができる。Further, according to the present invention, in particular, the contact surface of the locking piece with the locking pin is such that the distance from the rotation fulcrum of the locking piece gradually increases from the front side to the rear side in the direction in which the locking piece projects on the fitting locus. It is formed on a large inclined surface, and the locking piece is elastically biased so as to press the locking pin at its abutment surface, so the biasing force of the spring body pulls the side plate inward in the left-right direction. Acting in the direction of pulling down and pulling down, the inner surface of the fitting recess and the abutting surface of the locking piece firmly clamp the locking pin, the side plate is closed without rattling, and the positioning can be performed reliably, and the intermediate bonnet The outer surface of the side plate may be flush with the outer surface of the side plate portions of the front and rear bonnets.
第１図は本考案の実施例を示す要部断面図、第２図は第
１図II−II線矢視図、第３図は全体側面図、第４図は第
３図IV−IV線断面矢視図である。 １……トラクタ、２……エンジン、17……ボンネット、
18……前部ボンネット、19……中間ボンネット、21……
後部ボンネット、22，23……側板、29……係止ピン、31
……嵌合凹部、33……係止片、35……操作片、37……バ
ネ体、42……燃料噴射ポンプ。FIG. 1 is a sectional view of an essential part showing an embodiment of the present invention, FIG. 2 is a view taken along the line II-II in FIG. 1, FIG. 3 is an overall side view, and FIG. 4 is a line IV-IV in FIG. FIG. 1 ... tractor, 2 ... engine, 17 ... bonnet,
18 …… front hood, 19 …… middle hood, 21 ……
Rear bonnet, 22, 23 …… Side plate, 29 …… Locking pin, 31
...... Mating recess, 33 ...... Locking piece, 35 ...... Operating piece, 37 ...... Spring body, 42 ...... Fuel injection pump.
Claims (1)
１７が前部ボンネット１８と中間ボンネット１９と後部
ボンネット２１とからなるトラクタにおいて、 中間ボンネット１９の側板２３が、上部側で前部ボンネ
ット１７と後部ボンネット２１とに前後同軸廻りに回動
自在に枢支され、この側板２３の下部側において前部ボ
ンネット１８及び後部ボンネット２１から中間ボンネッ
ト１９側に夫々係止ピン２９が突設され、前記側板２３
下部の前後両側に、該側板２３の上部枢支部廻りの回動
によって前記係止ピン２９に左右方向外方側から嵌合す
る嵌合凹部３１と、左右方向内側部が前後軸廻りに回動
自在に枢支されており、この回動によって外側部が係止
ピン２９の嵌合凹部３１内への嵌入軌跡上に出退自在に
突出して係止ピン２９に接当し該係止ピン２９の嵌合凹
部３１からの離脱を阻止する係止片３３と、係止片３３
を係止ピン２９の嵌入軌跡上に突出する方向に弾発付勢
するバネ体３７とを設け、前記係止ピン２９に接当して
これの抜止めをする係止片３３の接当面４０は、係止片
３３が係止ピン２９の嵌入軌跡上に突出する方向の前方
側から後方側に向けて、係止片３３の回動支点からの距
離が漸次大となる傾斜面に形成されていることを特徴と
するトラクタのボンネット構造。1. A tractor in which a bonnet 17 for covering internal equipment such as an engine 2 comprises a front bonnet 18, an intermediate bonnet 19 and a rear bonnet 21, wherein a side plate 23 of the intermediate bonnet 19 is a front bonnet 17 at an upper side. The rear bonnet 21 is pivotally supported about the front-rear coaxially so as to be rotatable about the front and rear. The lower side of the side plate 23 has locking pins 29 projecting from the front bonnet 18 and the rear bonnet 21 to the intermediate bonnet 19 side. 23
On both front and rear sides of the lower part, a fitting concave portion 31 that fits to the locking pin 29 from the outer side in the left-right direction by rotation of the side plate 23 around the upper pivot portion, and an inner part in the left-right direction rotates about the front-rear axis. It is pivotally supported freely, and by this rotation, the outer side part projects to and from the fitting locus of the locking pin 29 into the fitting recess 31 and abuts on the locking pin 29 to come into contact therewith. Locking piece 33 for preventing the locking piece 33 from being disengaged from the fitting recess 31 and the locking piece 33.
Is provided with a spring body 37 for elastically urging the locking pin 29 in a direction projecting on the fitting path of the locking pin 29, and the contact surface 40 of the locking piece 33 for contacting the locking pin 29 to prevent the locking pin from coming off. Is formed on an inclined surface in which the distance from the rotation fulcrum of the locking piece 33 gradually increases from the front side to the rear side in the direction in which the locking piece 33 projects on the fitting locus of the locking pin 29. The bonnet structure of the tractor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987074630U JPH0618861Y2 (en) | 1987-05-19 | 1987-05-19 | Bonnet structure of tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987074630U JPH0618861Y2 (en) | 1987-05-19 | 1987-05-19 | Bonnet structure of tractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63182977U JPS63182977U (en) | 1988-11-25 |
| JPH0618861Y2 true JPH0618861Y2 (en) | 1994-05-18 |
Family
ID=30920018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987074630U Expired - Lifetime JPH0618861Y2 (en) | 1987-05-19 | 1987-05-19 | Bonnet structure of tractor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0618861Y2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5393825U (en) * | 1976-12-28 | 1978-07-31 | ||
| JPS5951682U (en) * | 1982-09-29 | 1984-04-05 | 株式会社クボタ | Engine bonnet fixing structure for rotating work vehicles |
| JPS61184067U (en) * | 1985-05-08 | 1986-11-17 |
-
1987
- 1987-05-19 JP JP1987074630U patent/JPH0618861Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63182977U (en) | 1988-11-25 |
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