JPH0211434Y2 - - Google Patents

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Publication number
JPH0211434Y2
JPH0211434Y2 JP1985024676U JP2467685U JPH0211434Y2 JP H0211434 Y2 JPH0211434 Y2 JP H0211434Y2 JP 1985024676 U JP1985024676 U JP 1985024676U JP 2467685 U JP2467685 U JP 2467685U JP H0211434 Y2 JPH0211434 Y2 JP H0211434Y2
Authority
JP
Japan
Prior art keywords
shaft support
hole
distance
plunger
link member
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
Application number
JP1985024676U
Other languages
Japanese (ja)
Other versions
JPS61142789U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1985024676U priority Critical patent/JPH0211434Y2/ja
Publication of JPS61142789U publication Critical patent/JPS61142789U/ja
Application granted granted Critical
Publication of JPH0211434Y2 publication Critical patent/JPH0211434Y2/ja
Expired legal-status Critical Current

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Description

【考案の詳細な説明】 (イ) 産業上の利用分野 本考案は、主として油圧式携行ジヤツキの中
で、容量の大きい、例えば30t、50tのような重量
物用ジヤツキの手動ポンプに関するものである。
[Detailed description of the invention] (a) Industrial application field The present invention mainly relates to a manual pump for a heavy-duty jack, such as a large-capacity hydraulic jack, such as a 30t or 50t jack. .

(ロ) 従来の技術 従来のこの種のジヤツキにおいては、操作レバ
ーとプランジヤとの軸支部位置と、操作レバーと
リンク部材との軸支部位置との距離が一定に固定
されているため、ジヤツキへの重量物の負荷の有
無に拘らず、ジヤツキの作動は常に操作レバーの
作動に関連して一定であつた。
(b) Conventional technology In this type of conventional jack, the distance between the shaft support position of the operation lever and the plunger and the shaft support position of the operation lever and the link member is fixed, so that the distance between the shaft support position of the operation lever and the link member is fixed. Regardless of the presence or absence of a heavy load, the actuation of the jack was always constant in relation to the actuation of the control lever.

更に、この種の手動ポンプにおいては、吐出量
qcm3と、発生圧力pKgf/cm2の積、T=p・qKg
cmは、人間の能力から概ね一定となるから、高い
圧力を必要とする場合には吐出量が小さくする必
要があり、吐出量を多くしたいときには圧力が低
くなる。
Furthermore, in this type of manual pump, the product of the discharge amount qcm 3 and the generated pressure pKgf/cm 2 , T = p・qKg
Since cm is approximately constant based on human ability, when a high pressure is required, the discharge amount needs to be small, and when a large discharge amount is desired, the pressure is lowered.

然るにこの種のジヤツキの手動ポンプは、通常
高圧時の吐出量に予め設定してあるので、操作レ
バーの操作は、重量物の存否に拘らず、常に多数
の操作回数を必須とするものであつた。
However, since this type of jack manual pump is usually preset to the discharge amount at high pressure, the operation lever must be operated many times regardless of whether there is a heavy object or not. Ta.

即ち、ジヤツキ側における一定距離の押上作動
を行わせるためのポンプ側の操作レバーの操作回
数は負荷の有無に拘らず一定である。
That is, the number of times the operating lever on the pump side is operated to cause the jack side to push up a certain distance is constant regardless of the presence or absence of a load.

(ハ) 考案が解決しようとする課題 このようなジヤツキにおける無負荷時も負荷時
も共に同じ条件の下にしか操作し得ない従来の手
動ポンプでは、重量物の下にジヤツキを配置して
重量物に達するまでの無負荷状態における操作
は、予め設定された高圧時の場合と同様に行われ
るため、時間的損失を生ずる一方、焦燥感を惹起
するという問題点がある。
(c) Problems to be solved by the invention In conventional manual pumps, which can only be operated under the same conditions both under load and under no load, the jack is placed under a heavy object to reduce the weight. Since the operation in the no-load state until reaching the object is performed in the same way as in the case of a preset high pressure, there are problems in that it causes a loss of time and causes a feeling of irritation.

(ニ) 課題を解決するための手段 上記目的を解決するために、本考案高低速切換
手動ポンプにおいては、操作レバー1の先端をリ
ンク部材2の頂端に軸支すると共に該軸支部3よ
り一定の距離を置いて前記操作レバー1をプラン
ジヤ4に軸支した手動ポンプにおいて、前記リン
ク側の軸支部3とプランジヤ側の軸支部5との距
離lの伸縮を行なうため、両端の軸受孔6a,6
bを中継孔6cで連続した蚕孔6と、前記中継孔
6cに対向する二平面部5a,5aを備えた軸支
部5とを設けるようにしたのである。
(d) Means for solving the problem In order to solve the above object, in the high-low speed switching manual pump of the present invention, the tip of the operating lever 1 is pivotally supported on the top end of the link member 2, and the tip of the operating lever 1 is fixedly supported from the shaft support 3. In a manual pump in which the operation lever 1 is pivotally supported on the plunger 4 at a distance of 1, the shaft support 3 on the link side and the shaft support 5 on the plunger side are extended and contracted by a distance l, so that bearing holes 6a at both ends, 6
A silkworm hole 6 which is continuous with a relay hole 6c, and a shaft support 5 having two plane parts 5a, 5a facing the relay hole 6c are provided.

このため本考案においては、第4図示の構造図
に示す操作レバー1の先端とリンク部材2とを連
繋する軸支部3と、操作レバー1とプランジヤ4
とを連繋する軸支部5との距離lを調節すること
によつて、即ち無負荷時には距離lを長くしてプ
ランジヤ4の作動範囲Sを大きくして作動油の吐
出量を増大することによつてジヤツキの作動を早
め、負荷時には距離lを短縮すると同時に操作距
離l1を長くして圧力pに対向する操作力Fを相対
的に小さくするように構成したもので、これによ
つて前述の無負荷時の時間的損失や焦燥感を回避
し得るように構成したものである。
Therefore, in the present invention, a shaft support 3 connecting the tip of the operating lever 1 and the link member 2, as shown in the structural diagram shown in FIG.
By adjusting the distance 1 from the shaft support 5 that connects the plunger 4, in other words, when no load is applied, the distance 1 is lengthened to enlarge the operating range S of the plunger 4 and increase the discharge amount of hydraulic oil. The lever is configured to speed up the operation of the jack, shorten the distance l when loaded, and at the same time lengthen the operating distance l1 to make the operating force F opposing the pressure p relatively small. This structure is designed to avoid time loss and irritation during no load.

(ホ) 実施例 今、実施例について述べると、第1図に示す本
考案ポンプの側面図にあるように、操作レバー1
の一部を形成するレバーソケツト1aの先端を軸
支部3を介してリンク部材2に連結すると共に距
離lを置いて軸支部5にプランジヤ4を連結して
ある。
(E) Example Now, to describe the example, as shown in the side view of the pump of the present invention shown in FIG.
The tip of a lever socket 1a forming a part of the lever socket 1a is connected to the link member 2 via a shaft support 3, and a plunger 4 is connected to the shaft support 5 at a distance l.

このレバーソケツト1aは第2図示のように下
側に二又部1b,1bを有し、二又部1b,1b
間にプランジヤ4の頭部4aを挿入すると共に軸
支部5によつて連結してあり、この軸支部5は、
第3図の軸支部の断面図から明らかなように、互
いに平行する二面巾5a,5aを切削形成し、二
又部1b,1bには該二面巾5a,5aを切削形
成し、二又部1b,1bには該二面巾5a,5a
に摺接して軸支部5を案内する中継孔6cを介し
て軸受孔6aと同6bとを連結した蚕孔6を穿開
してある。
This lever socket 1a has fork parts 1b, 1b on the lower side as shown in the second figure.
The head 4a of the plunger 4 is inserted between them, and they are connected by a pivot 5.
As is clear from the cross-sectional view of the shaft support in FIG. 1b, 1b has the width across flats 5a, 5a.
A silkworm hole 6 is bored through which the bearing hole 6a and the bearing hole 6b are connected through a relay hole 6c which slides into contact with the bearing hole 6c and guides the shaft support 5.

軸支部5の一端には、ハンドル7が固定してあ
り、第1図上ハンドル7の破線位置への略直角な
回動によつて前述の二面巾5a,5aが中継孔6
cに摺接して軸支部5をスライドし得るようにし
てあり、ハンドル7の原位置への復動によつて同
部5が軸受孔6a又は6bから中継孔6cへ抜け
出ないようにしてある。
A handle 7 is fixed to one end of the shaft support 5, and by rotating the handle 7 at a substantially right angle to the position indicated by the broken line in FIG.
The shaft support 5 is slidable in sliding contact with the handle 7, and is prevented from slipping out from the bearing hole 6a or 6b into the relay hole 6c when the handle 7 returns to its original position.

前述のリンク部材2の下端は、ピン8を介して
基台9に軸装してあり、基台9に固定したシリン
ダ10の下底にはジヤツキ本体への油通路が設け
てある。
The lower end of the aforementioned link member 2 is mounted on a base 9 via a pin 8, and an oil passage to the jack body is provided at the bottom of the cylinder 10 fixed to the base 9.

以上の構成からなる本考案手動ポンプにおいて
は、無負荷状態から負荷状態に切り換えるには、
ハンドル7を第1図破線で示すように略90゜回動
して、軸支部5の二面巾5a,5aを蚕孔6の中
継孔6cに整合させ、その状態でレバーソケツト
1aを図上左方に移動し、軸支部5を軸受孔6a
から同6bへと移動させた後、ハンドル7を垂直
位置に戻せば、軸支部5が中継孔6cへと移動す
ることはない。
In the manual pump of the present invention having the above configuration, in order to switch from a no-load state to a loaded state,
Rotate the handle 7 approximately 90 degrees as shown by the broken line in Figure 1 to align the width across flats 5a, 5a of the shaft support 5 with the relay hole 6c of the silkworm hole 6, and in this state, move the lever socket 1a to the left in the figure. and move the shaft support 5 to the bearing hole 6a.
If the handle 7 is returned to the vertical position after being moved from 6b to 6b, the pivot support 5 will not move to the relay hole 6c.

このように第4図示の距離lを短縮すれば、シ
リンダ10内の圧力pに対する操作力Fが軽減さ
れて、それだけ操作が容易となり、吐出容量は小
さくなるが、重量物の押上に有利となる。
If the distance l shown in the fourth diagram is shortened in this way, the operating force F against the pressure p inside the cylinder 10 is reduced, which makes the operation easier, and although the discharge capacity becomes smaller, it is advantageous for pushing up heavy objects. .

一方、無負荷状態で作動させる場合には、ハン
ドル7を同様に略90゜回動して中継孔6cを経て
軸受孔6bから同6aに軸支部5を移動すれば、
距離lが伸長されて、プランジヤ4の作動距離S
が大きくなり、それだけ吐出量が増大してジヤツ
キの作動が早く行われることとなる。
On the other hand, when operating under no-load conditions, the handle 7 is similarly rotated approximately 90 degrees and the shaft support 5 is moved from the bearing hole 6b to the bearing hole 6a via the relay hole 6c.
The distance l is extended, and the working distance S of the plunger 4 is
becomes larger, the discharge amount increases accordingly, and the jacking operation is performed faster.

第5図は本考案手動ポンプの他の実施例を示す
側面図で、第6図は第5図A−A線部分の断面
図、第7図は第5図B−B線部分の断面図であ
る。
Fig. 5 is a side view showing another embodiment of the manual pump of the present invention, Fig. 6 is a cross-sectional view taken along line A-A in Fig. 5, and Fig. 7 is a cross-sectional view taken along line B-B in Fig. 5. It is.

この実施例と、第1図乃至第3図の実施例との
相異は、後者の蚕孔6は、レバーソケツト1a自
体に設けてあるに反し、本実施例では、蚕孔6′
別設したリンク部材2aに設けてあり、レバーソ
ケツト1aは、完全円形の軸受孔11と軸支部5
によつて連結され、両者の接触面積が、前例と異
なり大きくなり、それだけ耐久性において優れる
一方、前述の蚕孔6′を有するリンク部材2aは、
その一端をリンク部材2の頂端にリンク部材2b
と共に軸支3してある。
The difference between this embodiment and the embodiments shown in FIGS. 1 to 3 is that in the latter case, the silkworm hole 6 is provided in the lever socket 1a itself, whereas in this embodiment, the silkworm hole 6' is provided in the lever socket 1a itself.
It is provided in a separate link member 2a, and the lever socket 1a has a completely circular bearing hole 11 and a shaft support 5.
The link member 2a having the above-mentioned silkworm hole 6' has a larger contact area than the previous example, and is therefore superior in durability.
One end of the link member 2b is attached to the top end of the link member 2.
It is also pivotally supported.

また、軸支部5の二面巾5a,5aは蚕孔6′
に対向する部分にのみ設けてあり、距離lの伸縮
は、ハンドル7の前例と同様な略90゜の回動と、
リンク部材2aの移動によるリンク部材2の第5
図上左右への回動によつて行われるもので、操作
は前例と同様である。
Also, the width across flats 5a, 5a of the shaft support 5 is the silkworm hole 6'.
It is provided only in the part facing the handle 7, and the expansion and contraction of the distance l is the same as the previous example of the handle 7, which is a rotation of about 90 degrees,
The fifth link member 2 due to the movement of the link member 2a
This is done by rotating left and right in the figure, and the operation is the same as the previous example.

(ヘ) 考案の効果 以上述べた如く本考案によれば、リンク側の軸
支部3とプランジヤ側の軸支部5との距離lを無
負荷時と負荷時とに対応して伸縮せしめるため、
殊に無負荷時におけるジヤツキ作動速度を迅速な
らしめることが可能であり、このため一対の軸受
孔6a,6bを中継孔6cで連続した蚕孔6と、
二面巾5a,5aを一部に開設した軸支部5とに
よつて簡易且つ確実に高低速の切換が行われ得る
ように構成したから、無負荷時における作業を迅
速ならしめることが可能となり、時間的損失を防
止すると共に、焦燥感を回避し得るもので、実用
上の利益はきわめて顕著である。
(f) Effects of the invention As described above, according to the invention, in order to expand and contract the distance l between the shaft support 3 on the link side and the shaft support 5 on the plunger side in accordance with the unloaded state and the loaded state,
In particular, it is possible to speed up the jacking operation speed when no load is applied, and for this purpose, a pair of bearing holes 6a and 6b are connected to each other by a relay hole 6c, and a silkworm hole 6 is used.
Since the configuration is such that switching between high and low speeds can be performed easily and reliably using the shaft support 5 in which the width across flats 5a and 5a are partially opened, it is possible to quickly perform work when no load is applied. It can prevent time loss and avoid feeling of irritation, and the practical benefits are extremely significant.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案手動ポンプの一実施例を示す側
面図、第2図は第1図A−A線部分の断面図、第
3図はプランジヤ側軸支部の断面図、第4図は一
般の手動ポンプの構成を示す略図、第5図は本考
案による他の実施例を示す側面図、第6図は第5
図A−A線部分の断面図、第7図は第5図B−B
線部分の断面図である。 2……リンク部材、3……リンク側軸支部、4
……プランジヤ、5……プランジヤ側の軸支部、
5a……二面巾、6……蚕孔、6a,6b……軸
受孔、6c……中継孔。
Fig. 1 is a side view showing an embodiment of the manual pump of the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, Fig. 3 is a sectional view of the plunger side shaft support, and Fig. 4 is a general view of the manual pump of the present invention. 5 is a side view showing another embodiment of the present invention, and FIG.
A cross-sectional view of the line A-A, Figure 7 is Figure 5 B-B
It is a sectional view of a line part. 2...Link member, 3...Link side shaft support, 4
...Plunger, 5...Plunger side shaft support,
5a... Width across flats, 6... Silkworm hole, 6a, 6b... Bearing hole, 6c... Relay hole.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 操作レバーの先端をリンク部材の頂端に軸支す
ると共に該軸支部より一定の距離を置いて前記操
作レバーをプランジヤに軸支した手動ポンプにお
いて、前記リンク側の軸支部とプランジヤ側の軸
支部との距離の伸縮を行うため、両端の軸受孔を
中継穴で連続した蚕孔と、前記中継孔に対向する
二平面部を具えた軸支部とを設けたことを特徴と
する高低速切換手動ポンプ。
In a manual pump in which the tip of the operating lever is pivotally supported on the top end of a link member, and the operating lever is pivotally supported on a plunger at a certain distance from the pivot, the pivot on the link side and the pivot on the plunger side. A high-low speed switching manual pump, characterized in that it is provided with a silkworm hole in which the bearing holes at both ends are continuous with a relay hole, and a shaft support having a biplanar part facing the relay hole, in order to expand and contract the distance. .
JP1985024676U 1985-02-22 1985-02-22 Expired JPH0211434Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985024676U JPH0211434Y2 (en) 1985-02-22 1985-02-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985024676U JPH0211434Y2 (en) 1985-02-22 1985-02-22

Publications (2)

Publication Number Publication Date
JPS61142789U JPS61142789U (en) 1986-09-03
JPH0211434Y2 true JPH0211434Y2 (en) 1990-03-22

Family

ID=30519050

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985024676U Expired JPH0211434Y2 (en) 1985-02-22 1985-02-22

Country Status (1)

Country Link
JP (1) JPH0211434Y2 (en)

Also Published As

Publication number Publication date
JPS61142789U (en) 1986-09-03

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