JPS6038638Y2 - Forklift truck mast device - Google Patents
Forklift truck mast deviceInfo
- Publication number
- JPS6038638Y2 JPS6038638Y2 JP1978073525U JP7352578U JPS6038638Y2 JP S6038638 Y2 JPS6038638 Y2 JP S6038638Y2 JP 1978073525 U JP1978073525 U JP 1978073525U JP 7352578 U JP7352578 U JP 7352578U JP S6038638 Y2 JPS6038638 Y2 JP S6038638Y2
- Authority
- JP
- Japan
- Prior art keywords
- pair
- masts
- mast
- forklift truck
- cylinder
- 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
Description
【考案の詳細な説明】
本考案はフォークリフトトラックのマスト装置、詳しく
は運転席が車体の左側または右側に設けであるフォーク
リフトトラックのマスト装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mast device for a forklift truck, and more particularly to a mast device for a forklift truck in which a driver's seat is provided on the left or right side of the vehicle body.
フォークリフトトラックにおいては前方視界性を向上す
ることが重要な問題である。Improving forward visibility is an important issue in forklift trucks.
そこで、従来は第１図ａ−ｂに示す如く、前方視界の邪
魔になるチェーンａやシリンダｂを左右一対のマストｃ
の後側に設けたり、第２図に示す如くシリンダｂを多数
伸びシリンダとして短かくしたりしている。Therefore, conventionally, as shown in Figure 1 a-b, the chain a and cylinder b, which obstruct the forward view, were moved to a pair of left and right masts c.
It may be provided on the rear side, or as shown in FIG. 2, the cylinder b may be shortened by using multiple extended cylinders.
第１図、第２図において、Ｃ′は外マスト、Ｃ“は内マ
ストｄはチェーンホイール、ｅはフォーク爪、ｆはマス
ト下部ステーである。In FIGS. 1 and 2, C' is an outer mast, C'' is an inner mast, d is a chain wheel, e is a fork pawl, and f is a mast lower stay.
この構造であると左右一対のマストｃ−ｃ間から前方を
良好に視ることができるので、運転席ｇが車体りの略中
夫に設けであるフォークリフトトラックでは前方視界性
を向上できる。With this structure, it is possible to clearly see the front from between the pair of left and right masts c and c, so forward visibility can be improved in a forklift truck where the driver's seat g is provided approximately in the middle of the vehicle body.
しかし、運転席ｇが車体りの左側または右側に設けであ
るフォークリフトトラックでは前方視界性を向上するこ
とができない。However, forward visibility cannot be improved in a forklift truck in which the driver's seat g is provided on the left or right side of the vehicle body.
そこで、この種のフォークリフトトラックでは第３図に
示す如く、左右一対のマストｃ−ｃ間の距離りを短かく
して前方視界性を向上している。Therefore, in this type of forklift truck, as shown in FIG. 3, the distance between the pair of left and right masts cc is shortened to improve forward visibility.
しかし、従来のマスト装置であっては車体りに装着した
左右一対の外マストｃ′の内側に左右一対の内マストＣ
″を上下動自在に設け、左右一対の内マストＣ“・Ｃ“
にフィンガーボードｊの左右一対の取付板ｉ−１を上下
動自在に設けると共に、左右一対の取付板ｉ−１間にシ
リンダｂを設けた構造であるから、シリンダｂと左右一
対の内マストＣ″・Ｃ″との距離Ｌ′を少なくとも取付
板ｅが上下動できる程度に設計する必要があるので左右
一対のマストｃ−ｃの距離りを余り狭くすることができ
ず前方視界性を余り良好とすることができない。However, in the conventional mast device, a pair of left and right inner masts C' are mounted on the inside of a pair of left and right outer masts C' attached to the vehicle body.
'' can be moved up and down, and a pair of left and right inner masts C'' and C''
Since the structure is such that a pair of left and right mounting plates i-1 of the fingerboard j are provided vertically movably, and a cylinder b is provided between the pair of left and right mounting plates i-1, the cylinder b and the pair of left and right inner masts C. It is necessary to design the distance L' from ``・C'' to at least the extent that the mounting plate e can move up and down, so the distance between the left and right pair of masts c and c cannot be made too narrow and the forward visibility is not very good. It is not possible to do so.
本考案は上記の事情に鑑みなされたものであり、その目
的は運転席が車体の左側または右側に設けであるフォー
クリフトトラックの前方視界性を向上できるようにした
フォークリフトトラックのマスト装置を提供することで
ある。The present invention was developed in view of the above circumstances, and its purpose is to provide a mast device for a forklift truck that can improve the forward visibility of a forklift truck in which the driver's seat is provided on the left or right side of the vehicle body. It is.
以下第４図以降を参照して本考案の実施例を説明する。Embodiments of the present invention will be described below with reference to FIG. 4 and subsequent figures.
車体１０の前方下部には左右一対の取付材１１．１１を
介して左右一対の内マスト１２．１２が前後傾動自在に
装着され、左右一対の内マスト１２．１２の下部にはシ
リンダ受部１３が固設してあり、該シリンダ受部１３に
はシリンダ１４が立設固設しであると共に、内マスト１
２にはシリンダ取付片１５とチェーン取付片１６とが設
けである。A pair of left and right inner masts 12.12 are attached to the front lower part of the vehicle body 10 via a pair of left and right mounting members 11.11 so as to be tiltable back and forth, and a cylinder receiver 13 is attached to the lower part of the left and right inner masts 12.12. A cylinder 14 is fixedly installed in the cylinder receiving part 13, and the inner mast 1
2 is provided with a cylinder mounting piece 15 and a chain mounting piece 16.
該シリンダ取付片１５と車体１０との間には図示しない
傾動シリンダが枢着連結しであると共に、車体１０の左
側には運転席１７が設けである。A tilting cylinder (not shown) is pivotally connected between the cylinder mounting piece 15 and the vehicle body 10, and a driver's seat 17 is provided on the left side of the vehicle body 10.
前記各内マスト１２の外側には左右一対の外マスト１８
．１８力釦−ラ１９を介して上下動自在にそれぞれ設け
てあり、各外マスト１８の外側には左右一対の取付板２
０がローラ２１を介して上下動自在に設けられ、左右一
対の取付板２０，２０に跨ってフィンガーボード２２が
固設してあって、フィンガーボード２２にはフォーク爪
２３が取付けである。A pair of left and right outer masts 18 are provided on the outside of each of the inner masts 12.
．． Each outer mast 18 has a pair of left and right mounting plates 2 on the outside of each outer mast 18.
0 is provided to be movable up and down via rollers 21, and a finger board 22 is fixedly installed across a pair of left and right mounting plates 20, 20, and a fork claw 23 is attached to the finger board 22.
前記シリンダ１４のピストン杆１４ａが外マスト１８に
固設したチェーンブラケット２４に固設され、該チェー
ンブラケット２４には一対のチェーンホイール２５．２
５が設けであると共に、一端が前記チェーン取付片１６
に固設したチェーン２６の他端が前記一対のチェーンホ
イール２５゜２５を介して前記フィンガーボード２２に
固設しである。The piston rod 14a of the cylinder 14 is fixed to a chain bracket 24 fixed to the outer mast 18, and the chain bracket 24 has a pair of chain wheels 25.2.
5 is provided, and one end is attached to the chain attachment piece 16.
The other end of the chain 26 is fixed to the finger board 22 via the pair of chain wheels 25.
また、前記左右一対の外マスト１８．１８の前端面下部
・中央部に亘ってステー２７が固設しであると共に、上
部板２８が固設しである。Further, a stay 27 is fixedly provided across the lower and central portions of the front end surfaces of the pair of left and right outer masts 18, 18, and an upper plate 28 is also fixedly provided.
しかして、シリンダ１４の伸び側室に圧油を供給すると
ピストン杆１４ａが伸長しチェーンブラケット２５が上
昇されて外マスト１８が内マスト１２に沿って上昇する
。When pressure oil is supplied to the extension side chamber of the cylinder 14, the piston rod 14a is extended, the chain bracket 25 is raised, and the outer mast 18 is raised along the inner mast 12.
これと同時にチェーン２６を介してフォーク爪２３（フ
ィンガーボード２２）が外マスト１８の２倍の速度で上
昇する。At the same time, the fork pawl 23 (fingerboard 22) is raised via the chain 26 at twice the speed of the outer mast 18.
また、車体１０に装着した左右一対の内マスト１２．１
２の外側に左右一対の外マスト１８が上下動自在に設け
られ、各外マスト１８の外側に取付板２０が上下動自在
に設けであるから、シリンダ１４と内マスト１２とを著
しく接近して設けることができ、その距離Ｌ′を短くで
きる。In addition, a pair of left and right inner masts 12.1 attached to the vehicle body 10
A pair of left and right outer masts 18 are provided on the outside of the cylinder 2 so as to be movable up and down, and a mounting plate 20 is provided on the outside of each outer mast 18 so as to be movable up and down. The distance L' can be shortened.
したがって、左右一対の外マスト１８．１８間の距離り
を従来と比較して著しく短かくできるから、前方視界性
を著しく向上できる。Therefore, the distance between the pair of left and right outer masts 18, 18 can be made significantly shorter than in the past, and forward visibility can be significantly improved.
なお、チェーンブラケット２４は左右一対の外マスト１
８．１８に沿って上下動自在に設けても良い。In addition, the chain bracket 24 is attached to the left and right outer masts 1.
8.18 may be provided so as to be movable up and down.
本考案は前述のように構成したので、左右一対の外マス
ト１８．１８間の距離りを著しく短かくして運転席１７
が車体１０の左側または右側に設けであるフォークリフ
トトラックの前方視界性を著しく向上できる。Since the present invention is constructed as described above, the distance between the left and right outer masts 18 and 18 is significantly shortened, and the driver's seat 17
The forward visibility of the forklift truck, which is provided on the left or right side of the vehicle body 10, can be significantly improved.
また、内マスト１２の外側に外マスト１８が設けられ、
外マスト１８の外側に取付板２０が設けであるから、マ
スト装置全体の車体１０前後方向の巾が狭く、車体１０
からフォーク爪２３までの距離を短かくてき、車体１０
の前後安定性が向上する。Further, an outer mast 18 is provided outside the inner mast 12,
Since the mounting plate 20 is provided on the outside of the outer mast 18, the width of the entire mast device in the longitudinal direction of the vehicle body 10 is narrow, and the width of the entire mast device is narrow.
The distance from to the fork pawl 23 is shortened, and the vehicle body 10
Improves longitudinal stability.
また、内マスト１２、外マスト１８は横断面コ字状とな
っているから、従来のマスト装置に用いられるマストを
利用できると共に、ローラを介して上下動自在に取付け
でき構造簡単となると共に、安価となる。In addition, since the inner mast 12 and the outer mast 18 have a U-shaped cross section, the masts used in conventional mast devices can be used, and they can be mounted vertically movably via rollers, resulting in a simple structure. It will be cheaper.
第１図ａ、 ｂは従来例の正面図及び一部破断乎面図、
第２図は異なる従来例の概略正面図、第３図は更に異な
る従来例の一部破断面図、第４図は本考案の実施例を示
す断面正面図、第５図はその一部破断平面図である。
１０は車体、１２は内マスト、１４はシリンダ、１８は
外マスト、２３はフォーク爪。Figures 1a and 1b are a front view and partially cutaway view of the conventional example;
Fig. 2 is a schematic front view of a different conventional example, Fig. 3 is a partially broken sectional view of a further different conventional example, Fig. 4 is a sectional front view showing an embodiment of the present invention, and Fig. 5 is a partially broken sectional view. FIG. 10 is the vehicle body, 12 is the inner mast, 14 is the cylinder, 18 is the outer mast, and 23 is the fork pawl.
Claims (1)
２を、外向コ字状にそれぞれ装着し、該左右一対の内マ
スＨ２，１２の外側に横断面コ字状の左右一対の外マス
ト１８．１８を、外向コ字状でかつローラを介して上下
動自在にそれぞれ設けると共に、左右一対の外マスト１
８．１８の外側に、左右一対の取付板２０，２０をロー
ラを介し上下動自在に設け、該左右一対の取付板２０．
２０間に跨ってフィンガーボード２２を固設し、該フィ
ンガーボード２２にフォーク爪２３を取付は前記左右一
対の内マスト１２．１２間に外マスト１８及びフォーク
爪２３を上下動するシリンダ１４を設けたことを特徴と
するフォークリフトトラックのマスト装置。A pair of left and right inner masts 12.1 with a U-shaped cross section are provided on the vehicle body 10.
2 are mounted in an outward U-shape, and a pair of left and right outer masts 18, 18 each having a U-shaped cross section are attached to the outside of the pair of left and right inner masses H2, 12 in an outward U-shape and via rollers. A pair of left and right outer masts 1 are provided so as to be movable up and down.
8.18, a pair of left and right mounting plates 20, 20 are provided vertically movably via rollers, and the pair of left and right mounting plates 20.
A finger board 22 is fixedly installed across the space between the two, and a fork claw 23 is attached to the finger board 22. A cylinder 14 is provided between the pair of left and right inner masts 12 and 12 for vertically moving the outer mast 18 and the fork claw 23. A forklift truck mast device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978073525U JPS6038638Y2 (en) | 1978-06-01 | 1978-06-01 | Forklift truck mast device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978073525U JPS6038638Y2 (en) | 1978-06-01 | 1978-06-01 | Forklift truck mast device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54175777U JPS54175777U (en) | 1979-12-12 |
| JPS6038638Y2 true JPS6038638Y2 (en) | 1985-11-18 |
Family
ID=28986219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978073525U Expired JPS6038638Y2 (en) | 1978-06-01 | 1978-06-01 | Forklift truck mast device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6038638Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51100569A (en) * | 1975-02-28 | 1976-09-04 | Toyo Umpanki Co Ltd | NYAKUMASUTOSOCHI |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS471879U (en) * | 1971-01-25 | 1972-08-21 |
-
1978
- 1978-06-01 JP JP1978073525U patent/JPS6038638Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51100569A (en) * | 1975-02-28 | 1976-09-04 | Toyo Umpanki Co Ltd | NYAKUMASUTOSOCHI |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54175777U (en) | 1979-12-12 |
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