JPH0538999Y2 - - Google Patents
Info
- Publication number
- JPH0538999Y2 JPH0538999Y2 JP1988118096U JP11809688U JPH0538999Y2 JP H0538999 Y2 JPH0538999 Y2 JP H0538999Y2 JP 1988118096 U JP1988118096 U JP 1988118096U JP 11809688 U JP11809688 U JP 11809688U JP H0538999 Y2 JPH0538999 Y2 JP H0538999Y2
- Authority
- JP
- Japan
- Prior art keywords
- rear door
- rotating arm
- pivotally supported
- pivot
- loading platform
- 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
- 238000005452 bending Methods 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Description
【考案の詳細な説明】
「産業上の利用分野」
本考案はダンプカーの後扉開閉装置に関し、特
に荷台の後部に後扉を有し、土砂、腐材、岩塊等
の積荷を運搬することができるダンプカーの後扉
開閉装置に関する。[Detailed description of the invention] "Industrial application field" This invention relates to a rear door opening and closing device for a dump truck, and more particularly to a rear door opening and closing device for a dump truck that has a rear door at the rear of the loading platform and can transport cargo such as soil, rotten material, and rock blocks.
「従来の技術」
従来の、ダンプカーの後扉開閉装置としては第
８図で示すような実施例が提案されていた（実公
昭62−1783号公報参照。）
すなわち、該実施例は荷台ａの下方に油圧シリ
ンダｂが横方向に設けられ、油圧シリンダｂの作
動杆ｃには後扉ｄと連結する被駆動腕ｅが枢支さ
れ、前記後扉ｄは複数個の転子ｆを介し荷台１の
下方に設けられたガイドｇに案内され、かつ前記
作動杆ｃの伸縮動により開閉するように構成され
ていた。``Prior Art'' As a conventional rear door opening/closing device for a dump truck, an embodiment as shown in FIG. A hydraulic cylinder b is provided laterally in the lower part, and a driven arm e connected to a rear door d is pivotally supported on an operating rod c of the hydraulic cylinder b, and the rear door d is connected to the loading platform via a plurality of trochanters f. 1, and was configured to be opened and closed by the expansion and contraction movement of the operating rod c.
しかして、上記構成にあつては、後扉ｄを荷台
ａの下方へ収納する場合、まず後扉を回転させ、
次に後扉ｄを油圧シリンダｂの作動杆の収縮動に
より水平移動をさせるので、次の列挙するような
欠点があつた。 Therefore, in the above configuration, when storing the rear door d below the loading platform a, first rotate the rear door,
Next, the rear door d is moved horizontally by the contraction movement of the operating rod of the hydraulic cylinder b, which has the following disadvantages.
油圧シリンダの作動杆ｃのストロークが長く
なり、したがつて、油圧シリンダｂは大型のも
のを使用しなければならない。 The stroke of the operating rod c of the hydraulic cylinder becomes long, and therefore a large hydraulic cylinder b must be used.
後扉ｄが荷台ａの下方へ収納されるまでの時
間がかかると共に、後扉ｄの開閉動作が切り換
わる時、特に水平動から回転動への変換の時ス
ムーズに行かない時がある。 It takes time for the rear door d to be stored below the loading platform a, and the opening and closing operation of the rear door d sometimes does not go smoothly, especially when converting from horizontal movement to rotational movement.
油圧シリンダ等が故障した場合には後扉ｄが
開いたままの状態となる。 If the hydraulic cylinder or the like fails, the rear door d remains open.
構造が複雑である。したがつて、上記の欠
点と相俟つて高価なものとなる。 The structure is complex. Therefore, in addition to the above-mentioned drawbacks, it is expensive.
「本考案の目的」
本考案は以上のような従来技術の欠点に鑑み、
比較的小型の油圧シリンダを用いることができ、
また後扉を短時間でスムーズに荷台の下方へ案内
することができ、さらに、油圧シリンダ等が万一
故障しても後扉が開放状態となることもなく、加
えて、構造が簡単で安価に製作することができ
る、ダンプカーの後扉開閉装置を得るにある。"Purpose of the present invention" In view of the above-mentioned shortcomings of the conventional technology, the present invention
A relatively small hydraulic cylinder can be used,
In addition, the rear door can be smoothly guided to the bottom of the loading platform in a short period of time, and even if the hydraulic cylinder etc. breaks down, the rear door will not be left open.In addition, the structure is simple and inexpensive. To obtain a rear door opening/closing device for a dump truck that can be manufactured.
「目的を解決するための手段」
上記目的を達成するため、本考案のダンプカー
の後扉開閉装置は、荷台１の側壁４内部に横方向
に設けられた油圧シリンダ３と、この油圧シリン
ダの伸縮ロツド５に先端部に幅広く形成された一
端部６ａの上方の部位が枢支されていると共に該
一端部の下方部位は上方枢軸１０を介して前記側
壁に枢支され、かつ、他端部６ｂが荷台と別体の
後扉７の上端部に枢支された上方回動腕６と、一
端部９ａが上方枢軸よりも下方に位置する下方枢
軸１１を介して側壁後端下部に枢支され、一方、
他端部９ｂが前記後扉７の下端部に枢支された下
方回動腕９とから成り、前記下方回動腕６の中央
部あるいは中央部よりの部位には油圧シリンダの
駆動力により後扉が回動した際に下方回動腕の一
端縁部９ａと当接する切欠部８が形成されている
ことを特徴とする。"Means for Solving the Objective" In order to achieve the above objective, the rear door opening/closing device for a dump truck of the present invention includes a hydraulic cylinder 3 provided laterally inside the side wall 4 of the loading platform 1, and an extendable and retractable hydraulic cylinder. An upper portion of one end 6a formed broadly at the tip is pivotally supported by the rod 5, and a lower portion of the one end is pivotally supported by the side wall via an upper pivot 10, and the other end 6b The upper rotating arm 6 is pivoted to the upper end of the rear door 7 which is separate from the loading platform, and the one end 9a is pivoted to the lower rear end of the side wall via a lower pivot 11 located below the upper pivot. ,on the other hand,
The other end portion 9b consists of a lower rotating arm 9 which is pivotally supported at the lower end of the rear door 7, and a central portion of the lower rotating arm 6 or a portion closer to the central portion is rearwardly moved by the driving force of a hydraulic cylinder. It is characterized in that a notch 8 is formed which comes into contact with one end edge 9a of the lower rotating arm when the door rotates.
また折曲部が荷台１Ａにリンク枢軸２２を介し
て枢支され、かつ、下端部２１ｂ側が引つ張りバ
ネ２３を介してシヤシ側２と連結された折曲リン
ク２１と、この折曲リンクの上端部２１ａに先端
部が枢支された連結杆２０と、この連結杆の後端
部に幅広く形成された一端部６ａの下方の部位が
枢支されていると共に該一端部の上方の部位は上
方枢軸１０を介して側壁後端部に枢支され、か
つ、他端部６ｂが荷台と別体の後扉７Ａの上端部
に枢支された上方回動腕６Ａと、一端部が上方枢
軸よりも下方に位置する下方枢軸を介して側壁後
端下部に枢支され、一方、他端部９ｂが前記後扉
７Ａの下端部に枢支された下方回動腕９Ａとから
成り、前記下方回動腕６Ａの中央部あるいは中央
部よりの部位には荷台が傾倒回転した際に下方回
動腕の一端縁部９ａと当接する切欠部８が形成さ
れていることを特徴とする。 Further, there is a bending link 21 whose bending portion is pivotally supported on the loading platform 1A via a link pivot 22, and whose lower end portion 21b side is connected to the chassis side 2 via a tension spring 23. A connecting rod 20 whose tip is pivotally supported on the upper end 21a, and a lower part of one end 6a formed broadly at the rear end of this connecting rod is pivotally supported, and an upper part of the one end is pivotally supported. An upper rotating arm 6A is pivoted to the rear end of the side wall via the upper pivot 10, and the other end 6b is pivoted to the upper end of the rear door 7A which is separate from the loading platform; The lower rotating arm 9A is pivoted to the lower rear end of the side wall via a lower pivot located below the rear door 7A, and the other end 9b is pivoted to the lower end of the rear door 7A. The rotary arm 6A is characterized in that a notch 8 is formed in the center or a region near the center thereof, which comes into contact with one end edge 9a of the lower rotary arm when the loading platform is tilted and rotated.
「実施例」 実施例について図面を参照して説明する。"Example" Examples will be described with reference to the drawings.
第１図ないし第４図に示す第１実施例に於い
て、１はダンプカーＸのシヤシ２側に回動可能に
設けられた荷台である。３は荷台１の側壁４後端
部の中空内部に設けられた油圧シリンダである。
この油圧シリンダ３は図面では一方だけ示してあ
るが、荷台１の両側壁４にそれぞれ横方向に適宜
設けられている。 In the first embodiment shown in FIGS. 1 to 4, reference numeral 1 denotes a loading platform rotatably provided on the side of the chassis 2 of the dump truck X. Reference numeral 3 denotes a hydraulic cylinder provided inside the hollow portion of the rear end of the side wall 4 of the loading platform 1.
Although only one of these hydraulic cylinders 3 is shown in the drawing, they are appropriately provided on both side walls 4 of the loading platform 1 in the lateral direction.
５は油圧シリンダ３の伸縮ロツドで、この伸縮
ロツド５の先端部には上方回動腕６の一端部６ａ
上方の部位が枢支されている。前記上方回動腕６
は、一端部６ａが他端部６ｂよりも幅広く形成さ
れており、一端部６ａの下方の部位は第２図およ
び第３図で示すように側壁４後端部に枢支されて
いると共に、他端部６ｂは荷台１と別体の後扉７
の上端部に枢支されている。 5 is a telescoping rod of the hydraulic cylinder 3, and one end 6a of the upper rotating arm 6 is attached to the tip of the telescoping rod 5.
The upper part is pivoted. The upper rotating arm 6
The one end 6a is formed wider than the other end 6b, and the lower part of the one end 6a is pivoted to the rear end of the side wall 4 as shown in FIGS. 2 and 3. The other end 6b is a rear door 7 separate from the loading platform 1.
It is pivoted at the upper end of the.
８は上方回動腕６の中央部あるいは中央部寄り
の部位に形成された半円弧状の切欠部で、この切
欠部８は後扉７が油圧シリンダの駆動力により略
90度開放回転した際に後述する下方回動腕の一端
縁部９ａと面接触する。 Reference numeral 8 denotes a semi-circular notch formed in the center or near the center of the upper rotating arm 6, and this notch 8 is formed when the rear door 7 is approximately opened by the driving force of the hydraulic cylinder.
When rotated 90 degrees, it comes into surface contact with one end edge 9a of a lower rotating arm, which will be described later.
９は一端部９ａが上方枢軸１０よりも斜め下方
に位置する下方枢軸１１を介して側壁４後端下部
に枢支され、かつ、他端部９ｂが後扉７の下端部
に枢支された下方回動腕で、この下方回動腕９は
上方回動腕６の回転に伴ない前記後扉７を略90度
開放させ、荷台１の下方に水平状態に案内する役
割を果す。 9 has one end 9a pivoted to the lower rear end of the side wall 4 via a lower pivot 11 located diagonally below the upper pivot 10, and the other end 9b pivoted to the lower end of the rear door 7. The lower rotating arm 9 serves to open the rear door 7 approximately 90 degrees as the upper rotating arm 6 rotates, and guide it horizontally below the cargo platform 1.
上記構成にあつては、油圧シリンダ３の伸縮ロ
ツド５が伸長すると、上方回動腕６は上方枢軸１
０を中心に、一方、下方回動腕９は下方枢軸１１
を中心にそれぞれ矢印で示す時針方向へ回動す
る。そうすると、後扉７は第４図で示すようにそ
のまま円周方向に略90度回転し、荷台１の下方に
水平状態に案内される。この時上方回転腕６の切
欠部８が下方回動腕９の一端縁部と面接触し、後
扉７が必要以上回転しないようにストツパーされ
る。 In the above configuration, when the telescopic rod 5 of the hydraulic cylinder 3 is extended, the upper rotating arm 6 moves toward the upper pivot 1.
0 as the center, while the lower rotating arm 9 is centered on the lower pivot 11
The clock rotates in the direction of the hour hand as indicated by the arrow. Then, the rear door 7 is rotated approximately 90 degrees in the circumferential direction as shown in FIG. 4, and is guided below the loading platform 1 in a horizontal state. At this time, the notch 8 of the upper rotating arm 6 comes into surface contact with one end edge of the lower rotating arm 9, and the rear door 7 is stopped from rotating more than necessary.
次に第５図ないし第７図に示す第２実施例に於
いて、後扉７Ａは上方回動腕６Ａと下方回動腕９
Ａの両腕により荷台１Ａの下方に水平状態に案内
される点は前記第１実施例と同様である。但し、
この実施例では後扉を回転させるために油圧シリ
ンダを用いず、荷台の傾倒回転を利用している。
したがつて、この第２実施例では第１実施例の構
成要件を要部あるいは主要部としながら、さら
に、折曲リンク２１、引つ張りバネ２３を構成要
件としている。なお、この実施例の説明に当たつ
て、第１実施例と同一の部分には同一の符号を符
し、重複する説明を省略する。 Next, in the second embodiment shown in FIGS. 5 to 7, the rear door 7A has an upper rotating arm 6A and a lower rotating arm 9.
This is similar to the first embodiment in that the vehicle is guided horizontally below the loading platform 1A by both arms of A. however,
In this embodiment, a hydraulic cylinder is not used to rotate the rear door, but the tilting and rotation of the loading platform is used.
Therefore, in this second embodiment, the constituent features of the first embodiment are used as the main parts, and the bending link 21 and the tension spring 23 are also included as constituent features. In the description of this embodiment, the same parts as in the first embodiment are denoted by the same reference numerals, and redundant explanation will be omitted.
しかして、上方回動腕６Ａの一端部６ａは上方
枢軸１０により荷台１Ａの側壁４後端部に枢支さ
れるが、前記上方枢軸１０は第５図で示すように
一端部６ａの略中央部に設けられている。２０は
先端部がＬ型状の折曲リンク２１の上端部２１ａ
に、一方、後端部が前記上方回動腕６Ａの一端部
６ａの下方の部位（前記上方枢軸１０よりも下方
の部位）にそれぞれ枢支されたバー状の連結杆で
ある。前記折曲リンク２１はリンク用枢軸２２で
その折曲部が荷台１Ａの床面下部の適宜箇所に枢
支されていると共に、下端部２１ｂ側が引つ張り
バネ２３を介しシヤシ側２と連結している。 Thus, one end 6a of the upper rotating arm 6A is pivoted to the rear end of the side wall 4 of the loading platform 1A by an upper pivot 10, and the upper pivot 10 is located approximately at the center of the one end 6a as shown in FIG. It is located in the department. 20 is an upper end portion 21a of a bending link 21 whose tip portion is L-shaped.
On the other hand, it is a bar-shaped connecting rod whose rear end portion is pivotally supported at a lower portion (a portion lower than the upper pivot 10) of the upper rotating arm 6A at one end 6a. The bending link 21 has a bending portion pivotally supported by a link pivot 22 at an appropriate location on the lower floor of the loading platform 1A, and a lower end portion 21b side is connected to the chassis side 2 via a tension spring 23. ing.
上記構成にあつては、荷台１Ａの前方部が上昇
し始めると、折曲リンク２１は引つ張りバネ２３
のバネ力に抗してある程度荷台１Ａと共に傾倒回
転する。しかしながら、荷台１Ａの前方部がさら
に上昇し、かつ引つ張りバネ２３のバネ作用が本
格的に発揮すると、折曲リンク２１は固定状態と
なり、荷台１Ａのみが傾倒回転し続ける。その結
果、第７図で示すように上方回動腕６Ａは連結杆
２０を介し前記折曲リンク２１に引つ張られた格
好となつて回転する。そして、後扉７Ａは上方回
動腕６Ａおよび下方回動腕９Ａの両腕に案内さ
れ、荷台１Ａの下方に略90度回転して収納され
る。この時上方回動腕６Ａの切欠部８が下方回動
腕９Ａの一端縁部と当接し、後扉７Ａが必要以上
回転しない点は前記第１実施例と同様である。 In the above configuration, when the front part of the loading platform 1A starts to rise, the bending link 21 is moved by the tension spring 23.
It tilts and rotates to some extent along with the loading platform 1A against the spring force of the loading platform 1A. However, when the front part of the loading platform 1A rises further and the tension spring 23 fully exerts its spring action, the bending link 21 becomes fixed, and only the loading platform 1A continues to tilt and rotate. As a result, as shown in FIG. 7, the upper rotating arm 6A rotates while being pulled by the bending link 21 via the connecting rod 20. The rear door 7A is guided by the upper rotating arm 6A and the lower rotating arm 9A, and is rotated approximately 90 degrees and stored below the loading platform 1A. At this time, the notch 8 of the upper rotating arm 6A comes into contact with one end edge of the lower rotating arm 9A, and the rear door 7A does not rotate more than necessary, as in the first embodiment.
「本考案の効果」
以上の説明から明らかなように、本考案にあつ
ては次に列挙するような効果がある。"Effects of the Present Invention" As is clear from the above explanation, the present invention has the following effects.
(1) 第１実施例の場合、油圧シリンダの伸縮ロツ
ドのストロークが非常に短かくなるので、油圧
シリンダ等は小型のものを使用することができ
る。また油圧シリンダは荷台の側壁内部に設け
られているので、外部から損傷を受けない。(1) In the case of the first embodiment, the stroke of the telescopic rod of the hydraulic cylinder is very short, so a small hydraulic cylinder etc. can be used. Moreover, since the hydraulic cylinder is provided inside the side wall of the loading platform, it is not damaged from the outside.
(2) 第２実施例の場合、油圧シリンダ等を用いな
くても良いから安価に製作できる。(2) In the case of the second embodiment, there is no need to use a hydraulic cylinder or the like, so it can be manufactured at low cost.
(3) 第１および第２実施例は共に後扉が略90度回
転しながら荷台の下方に直ちに水平状態に案内
されるから、後扉を短時間でかつスムーズに開
閉することができる。(3) In both the first and second embodiments, the rear door rotates approximately 90 degrees and is immediately guided to a horizontal position below the loading platform, so the rear door can be opened and closed smoothly in a short time.
(4) 第１実施例の場合、油圧シリンダ等が故障し
ても後扉が開いたままの状態となることはな
い。第２実施例の場合はそのような心配は全く
ない。(4) In the case of the first embodiment, even if the hydraulic cylinder or the like breaks down, the rear door will not remain open. In the case of the second embodiment, there is no such concern at all.
(5) 第１実施例の場合も従来の実施例と比較して
安価に製作することができる。(5) The first embodiment can also be manufactured at a lower cost than the conventional embodiments.
(6) 第１および第２実施例は、共に上方回動腕
６，６Ａの切欠部８が下方回動腕９，９Ａの一
端縁部と面接触し、後扉７，７Ａが必要以上回
転しないようにストツパーされる。(6) In both the first and second embodiments, the notch 8 of the upper rotating arm 6, 6A is in surface contact with one end edge of the lower rotating arm 9, 9A, and the rear door 7, 7A is rotated more than necessary. You will be stopped to prevent it from happening.
第１図ないし第４図は本考案の第１実施例を示
す各説明図、第５図ないし第７図は本考案の第２
実施例を示す各説明図、第８図は従来の一実施例
を示す概略説明図である。
１，１Ａ……荷台、２……シヤシ側、３……油
圧シリンダ、４……側壁、５……伸縮ロツド、
７，７Ａ……後扉、６，６Ａ……上方回動腕、
９，９Ａ……下方回動腕、１０……上方枢軸、１
１……下方枢軸、２０……連結杆、２１……折曲
リンク、２２……枢軸、２３……引つ張りバネ。
Figures 1 to 4 are explanatory diagrams showing the first embodiment of the present invention, and Figures 5 to 7 are explanatory diagrams showing the second embodiment of the present invention.
Each explanatory diagram showing an embodiment, FIG. 8 is a schematic explanatory diagram showing a conventional embodiment. 1, 1A... Loading platform, 2... Chassis side, 3... Hydraulic cylinder, 4... Side wall, 5... Telescopic rod,
7,7A...Rear door, 6,6A...Upper rotation arm,
9,9A...Downward rotating arm, 10...Upper pivot, 1
1... lower pivot, 20... connecting rod, 21... bending link, 22... pivot, 23... tension spring.
Claims (1)
油圧シリンダ３と、この油圧シリンダの伸縮ロ
ツド５に先端部に幅広く形成された一端部６ａ
の上方の部位が枢支されていると共に該一端部
の下方部位は上方枢軸１０を介して前記側壁に
枢支され、かつ、他端部６ｂが荷台と別体の後
扉７の上端部に枢支された上方回動腕６と、一
端部９ａが上方枢軸よりも下方に位置する下方
枢軸１１を介して側壁後端下部に枢支され、一
方、他端部９ｂが前記後扉７の下端部に枢支さ
れた下方回動腕９とから成り、前記下方回動腕
６の中央部あるいは中央部よりの部位には油圧
シリンダの駆動力により後扉が回動した際に下
方回動腕の一端縁部９ａと当接する切欠部８が
形成されていることを特徴とするダンプカーの
後扉開閉装置。 ２） 折曲部が荷台１Ａにリンク枢軸２２を介し
て枢支され、かつ、下端部２１ｂ側が引つ張り
バネ２３を介してシヤシ側２と連結された折曲
リンク２１と、この折曲リンクの上端部２１ａ
に先端部が枢支された連結杆２０と、この連結
杆の後端部に幅広く形成された一端部６ａの下
方の部位が枢支されていると共に該一端部の上
方の部位は上方枢軸１０を介して側壁後端部に
枢支され、かつ、他端部６ｂが荷台と別体の後
扉７Ａの上端部に枢支された上方回動腕６Ａ
と、一端部が上方枢軸よりも下方に位置する下
方枢軸を介して側壁後端下部に枢支され、一
方、他端部９ｂが前記後扉７Ａの下端部に枢支
された下方回動腕９Ａとから成り、前記下方回
動腕６Ａの中央部あるいは中央部よりの部位に
は荷台が傾倒回転した際に下方回動腕の一端縁
部９ａと当接する切欠部８が形成されているこ
とを特徴とするダンプカーの後扉開閉装置。[Claims for Utility Model Registration] 1) A hydraulic cylinder 3 provided laterally inside the side wall 4 of the loading platform 1, and one end 6a formed broadly at the tip of the telescopic rod 5 of this hydraulic cylinder.
The upper part is pivotally supported, the lower part of the one end is pivotally supported to the side wall via the upper pivot 10, and the other end 6b is attached to the upper end of the rear door 7 which is separate from the cargo platform. The upper pivoting arm 6 is pivoted, and one end 9a is pivoted to the lower rear end of the side wall via a lower pivot 11 located below the upper pivot, while the other end 9b is attached to the rear door 7. It consists of a downward rotating arm 9 pivotally supported at the lower end, and a central portion or a portion near the central portion of the downward rotating arm 6 is configured to rotate downward when the rear door is rotated by the driving force of a hydraulic cylinder. A rear door opening/closing device for a dump truck, characterized in that a notch 8 is formed to abut one end edge 9a of the arm. 2) A bending link 21 whose bending portion is pivotally supported on the loading platform 1A via a link pivot 22, and whose lower end 21b side is connected to the chassis side 2 via a tension spring 23, and this bending link. Upper end 21a of
A connecting rod 20 whose tip is pivotally supported, and a lower part of one end 6a formed broadly at the rear end of this connecting rod is pivotally supported, and an upper part of the one end is supported by an upper pivot 10. An upper rotating arm 6A is pivotally supported to the rear end of the side wall via the upper rotating arm 6A, and the other end 6b is pivotally supported to the upper end of the rear door 7A which is separate from the loading platform.
A lower rotating arm whose one end is pivoted to the lower rear end of the side wall via a lower pivot located below the upper pivot, and whose other end 9b is pivoted to the lower end of the rear door 7A. 9A, and a notch 8 is formed at or near the center of the lower rotating arm 6A, which comes into contact with one end edge 9a of the lower rotating arm when the loading platform is tilted and rotated. A dump truck rear door opening/closing device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988118096U JPH0538999Y2 (en) | 1988-09-08 | 1988-09-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988118096U JPH0538999Y2 (en) | 1988-09-08 | 1988-09-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0238343U JPH0238343U (en) | 1990-03-14 |
| JPH0538999Y2 true JPH0538999Y2 (en) | 1993-10-01 |
Family
ID=31362152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988118096U Expired - Lifetime JPH0538999Y2 (en) | 1988-09-08 | 1988-09-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0538999Y2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5429766A (en) * | 1977-08-09 | 1979-03-05 | Fujiharu Tanji | Nusing instrument for weaning of domestic animal |
| JPS58218434A (en) * | 1982-06-09 | 1983-12-19 | Shin Meiwa Ind Co Ltd | Device for automatically opening and closing rear flap door of dump car |
| JPS60174335A (en) * | 1984-02-20 | 1985-09-07 | Koya Kensetsu Kogyo:Kk | Rear door opening device for dump truck |
| JPS60191842A (en) * | 1984-03-13 | 1985-09-30 | Kyokuto Kaihatsu Kogyo Co Ltd | Cargo box tilting mechanism in dump truck |
| JPS621783U (en) * | 1985-06-14 | 1987-01-08 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5387516U (en) * | 1976-12-18 | 1978-07-18 | ||
| JPS57135443U (en) * | 1981-02-19 | 1982-08-24 |
-
1988
- 1988-09-08 JP JP1988118096U patent/JPH0538999Y2/ja not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5429766A (en) * | 1977-08-09 | 1979-03-05 | Fujiharu Tanji | Nusing instrument for weaning of domestic animal |
| JPS58218434A (en) * | 1982-06-09 | 1983-12-19 | Shin Meiwa Ind Co Ltd | Device for automatically opening and closing rear flap door of dump car |
| JPS60174335A (en) * | 1984-02-20 | 1985-09-07 | Koya Kensetsu Kogyo:Kk | Rear door opening device for dump truck |
| JPS60191842A (en) * | 1984-03-13 | 1985-09-30 | Kyokuto Kaihatsu Kogyo Co Ltd | Cargo box tilting mechanism in dump truck |
| JPS621783U (en) * | 1985-06-14 | 1987-01-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0238343U (en) | 1990-03-14 |
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