JPH078390U - jack - Google Patents
jackInfo
- Publication number
- JPH078390U JPH078390U JP8006792U JP8006792U JPH078390U JP H078390 U JPH078390 U JP H078390U JP 8006792 U JP8006792 U JP 8006792U JP 8006792 U JP8006792 U JP 8006792U JP H078390 U JPH078390 U JP H078390U
- Authority
- JP
- Japan
- Prior art keywords
- screw rod
- joint
- shaft
- jack
- shaft portion
- 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.)
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- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
(57)【要約】
【目的】 ジャッキの駆動部たるネジ棒の製造コスト節
減を図りつつ該ネジ棒一端にハンドルジョイントを強固
に一体結合できるようにする。
【構成】 ジャッキＪのネジ棒Ｂは、軸受部材Ｍに嵌合
される第１軸部Ｂ１と、この第１軸部Ｂ１にジョイント
カラーＣを介して一体的に連結されると共にナット部材
Ｎに螺挿される第２軸部Ｂ２とより構成され、何れか一
方の軸部Ｂ１外端にはハンドルジョイントＨが一体に成
形される。
(57) [Abstract] [Purpose] A handle joint can be firmly and integrally coupled to one end of a threaded rod which is a driving portion of a jack while reducing the manufacturing cost. [Structure] A screw rod B of a jack J is integrally connected to a first shaft portion B1 fitted to a bearing member M, a joint collar C, and a nut member N. The second shaft portion B2 is screwed into the shaft portion, and a handle joint H is integrally formed with the outer end of one of the shaft portions B1.
Description
【０００１】[0001]
本考案は、自動車の車体をタイヤ交換のために手動で持ち上げる場合等に好適 なジャッキ、特に複数のリンクアームを備えたリンク機構を介して台座に荷受台 を昇降可能に連結支持し、一部のリンクアームに設けた軸受部材にネジ棒の基部 を回転自在且つ軸方向相対移動不能に嵌合すると共にそのネジ棒の先部を、他の リンクアームに設けたナット部材に螺挿し、前記ネジ棒に設けられたハンドルジ ョイントを回動操作することにより該ネジ棒及びリンク機構を介して荷受台を昇 降駆動できるようにしたジャッキに関する。 INDUSTRIAL APPLICABILITY The present invention is a jack suitable for manually lifting an automobile body for tire replacement, etc., and in particular, a load receiving platform is connected to a pedestal so as to be capable of moving up and down via a link mechanism having a plurality of link arms, and partially supported. The base portion of the screw rod is rotatably and axially immovably fitted to the bearing member provided on the link arm, and the tip end of the screw rod is screwed into the nut member provided on the other link arm. The present invention relates to a jack in which a load-carrying pedestal can be driven up and down via the screw rod and a link mechanism by rotating a handle joint provided on the rod.
【０００２】[0002]
上記ジャッキとしては、４本のリンクアームをパンタグラフ状に連結した所謂 パンタグラフ型ジャッキや、２本のリンクアームをＹ字状に連結した所謂Ｙ型ジ ャッキが知られており、従来では、それらジャッキの上記ネジ棒とハンドルジョ イントとは別々に製作され、そのネジ棒の一端にハンドルジョイントを溶接又は カシメにより一体的に結合するようにしていた（例えば特公昭５７−５２３１９ 号公報および同５１−４５８６０号公報を参照）。 Known jacks are so-called pantograph-type jacks in which four link arms are connected in a pantograph shape, and so-called Y-type jacks in which two link arms are connected in a Y-shape. The above-mentioned screw rod and the handle joint are separately manufactured, and a handle joint is integrally connected to one end of the screw rod by welding or caulking (for example, Japanese Patent Publication Nos. 57-52319 and 51-51). 45860 gazette).
【０００３】[0003]
上記従来のものでは、長いネジ棒を一体物として製作加工していたため比較的 コストが嵩み、またそのネジ棒の一端にそれと別体のハンドルジョイントを後付 けしていた関係で、その両者間の結合強度面で改善の余地があった。尚、ネジ棒 の一端にハンドルジョイントを一体成形できればその両者間の結合強度は大幅に 高められる筈であるが、上記ネジ棒はヘッダー加工を行うにしては長過ぎるため 、従来では該ネジ棒の一端にハンドルジョイントをヘッダー加工により一体成形 するようなことは困難であると考えられていた。 In the above-mentioned conventional one, the long threaded rod is manufactured and processed as one piece, so the cost is relatively high, and a handle joint, which is separate from the threaded rod, is attached to one end of the threaded rod. There was room for improvement in terms of bond strength. It should be noted that if a handle joint can be integrally molded at one end of the threaded rod, the joint strength between the two should be greatly increased, but since the threaded rod is too long for header processing, the threaded rod has been conventionally used. It was considered difficult to integrally form a handle joint at one end by header processing.
【０００４】 本考案は、以上の事情に鑑み提案されたもので、ネジ棒の製造コスト節減を図 りつつ、そのネジ棒一端にハンドルジョイントを強固に一体化できるようにした ジャッキを提供することを目的とする。The present invention has been proposed in view of the above circumstances, and provides a jack in which a handle joint can be firmly integrated with one end of a threaded rod while reducing the manufacturing cost of the threaded rod. With the goal.
【０００５】[0005]
上記目的を達成するために本考案によれば、複数のリンクアームを備えたリン ク機構を介して台座に荷受台を昇降可能に連結支持し、一部のリンクアームに設 けた軸受部材にネジ棒の基部を回転自在且つ軸方向相対移動不能に嵌合すると共 にそのネジ棒の先部を、他のリンクアームに設けたナット部材に螺挿し、前記ネ ジ棒に設けられたハンドルジョイントを回動操作することにより該ネジ棒及びリ ンク機構を介して荷受台を昇降駆動できるようにしたジャッキにおいて、前記ネ ジ棒は、前記軸受部材に嵌合される第１軸部と、この第１軸部にジョイントカラ ーを介して一体的に連結されると共に前記ナット部材に螺挿される第２軸部とよ り構成され、何れか一方の軸部外端には前記ハンドルジョイントが一体に成形さ れる。 In order to achieve the above object, according to the present invention, a load receiving platform is movably connected to and supported by a pedestal via a link mechanism having a plurality of link arms, and a bearing member provided on a part of the link arms is screwed. When the base of the rod is rotatably and immovably fitted in the axial direction, the tip of the screw rod is screwed into a nut member provided on another link arm, and the handle joint provided on the screw rod is attached. In a jack in which a load receiving platform can be moved up and down via the screw rod and the link mechanism by rotating the screw rod, the screw rod includes a first shaft portion fitted to the bearing member and a first shaft portion. The second shaft part is integrally connected to one shaft part through a joint color and is screwed into the nut member. The handle joint is integrally formed on the outer end of one of the shaft parts. It is molded.
【０００６】[0006]
先ず、図１〜３を参照して本考案の第１実施例について説明する。この実施例 のジャッキＪは、４本のリンクアームをパンタグラフ状に連結した所謂パンタグ ラフ型ジャッキと呼ばれるもので、台座１及び荷受台２と、その両者間に介装さ れて台座１に荷受台２を昇降可能に連結支持するリンク機構Ｌと、このリンク機 構Ｌを介して荷受台２を昇降駆動するためのネジ棒Ｂとを備える。 First, a first embodiment of the present invention will be described with reference to FIGS. The jack J of this embodiment is a so-called pan tag rough type jack in which four link arms are connected in a pantograph shape. The jack J is placed between the pedestal 1 and the load receiving base 2 and the load receiving on the pedestal 1. A link mechanism L for connecting and supporting the table 2 so as to be able to move up and down, and a screw rod B for driving the load receiving table 2 up and down through the link mechanism L are provided.
【０００７】 前記リンク機構Ｌは、下端が各々台座１に揺動可能に枢支連結された左右一対 のロアアーム３1 ，３2 と、その各ロアアーム３1 ，３2 の上端に各々揺動可能 に枢支連結され且つ上端が荷受台２に各々揺動可能に枢支連結された左右一対の アッパアーム４1 ，４2 とより構成される。一方のロア及びアッパアーム３1 ， ４1 の枢支連結部５1 には、前記ネジ棒Ｂの基端部が回転自在且つ軸方向相対移 動不能に嵌合されるメタル軸受よりなる軸受部材Ｍが、また他方のロア及びアッ パアーム３2 ，４2 の枢支連結部５2 には、前記ネジ棒Ｂの先端部が螺挿される ナット部材Ｎが、それぞれ対応する枢支連結部５1 ，５2 回りに回動自在に支持 されている。The link mechanism L is swingable to a pair of left and right lower arms 3 1 and 3 2 whose lower ends are pivotally connected to the pedestal 1 and swingable to the upper ends of the lower arms 3 1 and 3 2 , respectively. Is composed of a pair of left and right upper arms 4 1 and 4 2 which are pivotally connected to each other and whose upper ends are pivotally connected to the load receiving table 2 so as to be swingable. A bearing member M made of a metal bearing in which a base end portion of the screw rod B is rotatably and axially immovably fitted to the pivotal connection portion 5 1 of one of the lower and upper arms 3 1 and 4 1. but also to the other of the lower and up Paamu 3 2, 4 2 pivotally connected portion 5 2, the nut member N the tip is screwed in the threaded rod B is pivotally connected portions 5 1 the corresponding, It is rotatably supported in 5 2 around.
【０００８】 而してネジ棒Ｂに対する回動操作により、その回動軸線方向にナット部材Ｎと 軸受部材Ｍとを相互に接近させると各アーム３1 ，３2 ，４1 ，４2 が起立して 荷受台２を上昇させ、またその両部材Ｎ，Ｍを相互に離間させると各アーム３1 ，３2 ，４1 ，４2 が伏倒して荷受台２を下降させることができるもので、以上 はパンタグラフ型ジャッキとして従来普通の構成である。When the nut member N and the bearing member M are brought closer to each other in the direction of the rotation axis of the screw rod B, the arms 3 1 , 3 2 , 4 1 , 4 2 are erected. Then, when the load carrier 2 is raised and the two members N and M are separated from each other, the arms 3 1 , 3 2 , 4 1 , 4 2 are laid down and the load carrier 2 can be lowered. The above is the conventional configuration for a pantograph type jack.
【０００９】 ネジ棒Ｂは、前記軸受部材Ｍに嵌合され先部外周に雄ネジが刻設される比較的 短い第１軸部Ｂ１と、外周にその軸方向全域に亘り雄ネジが刻設されて前記ナッ ト部材Ｎに螺挿される比較的長い第２軸部Ｂ２とより構成されており、その両軸 部Ｂ１，Ｂ２間は、それら間に跨がって被嵌・螺合され且つ一端が軸受部材Ｍの 一端面に当接するジョイントカラーＣを介して一体的に結合される。このジョイ ントカラーＣの各軸部Ｂ１，Ｂ２への固定は、その軸線方向に間隔をおいて２ヵ 所に施される転造カシメ６1 ，６2 に依ってなされる。The threaded rod B is a relatively short first shaft portion B1 fitted to the bearing member M and having a male thread engraved on the outer circumference of the tip portion, and a male thread engraved on the outer circumference over the entire axial direction thereof. And a relatively long second shaft portion B2 which is screwed into the nut member N, and the shaft portions B1 and B2 are fitted and screwed over the shaft portions B1 and B2. One end is integrally coupled via a joint collar C that abuts one end surface of the bearing member M. The joint collar C is fixed to each of the shaft portions B1 and B2 by rolling caulking 6 1 and 6 2 which are provided at two places at intervals in the axial direction.
【００１０】 前記第１軸部Ｂ１の基部にはハンドルジョイントＨが一体に成形されており、 このハンドルジョイントＨは、前記軸受部材Ｍの他端面にスラストベアリング７ を介して係合するフランジ状基部８と、この基部８より外方に一体に連設される 板状のジョイント本体９とより構成され、このジョイント本体９には、ネジ棒Ｂ を回動操作するためのジャッキバー１１の先端が係合可能な係止孔９ａが穿設さ れる。尚、このジョイント本体９の形状を図示例のようにすることによりその操 作性が向上する。A handle joint H is integrally formed at the base of the first shaft portion B1, and the handle joint H is a flange-shaped base portion that engages with the other end surface of the bearing member M via a thrust bearing 7. 8 and a plate-shaped joint main body 9 integrally connected to the outside of the base portion 8. The joint main body 9 has a tip end of a jack bar 11 for rotating the screw rod B 1. Engageable locking holes 9a are formed. The operability of the joint body 9 is improved by making the shape of the joint body 9 as shown in the figure.
【００１１】 前記ネジ棒Ｂの製造過程において、その第１及び第２軸部Ｂ１，Ｂ２は別々に 製作加工される。特に第１軸部Ｂ１は、所定寸法に成形された軸体の基端にハン ドルジョイントＨの母体となる部分（前記基部８を含む）をヘッダー加工した後 、当該部分の先部をプレス加工して前記ジョイント本体９を成形し、一方、その 軸体の先部外周に雄ネジを加工することにより得られる。また第２軸部Ｂ２は、 所定寸法に成形された軸体の外周にその軸方向全域に亘り雄ネジを加工すること により得られる。In the process of manufacturing the screw rod B, the first and second shaft portions B1 and B2 are separately manufactured. Particularly, the first shaft portion B1 has a base portion of a shaft body formed to have a predetermined size, which is subjected to header processing of a portion (including the base portion 8) to be the mother body of the hand joint H, and then the front portion of the portion is pressed. Then, the joint body 9 is molded and, on the other hand, a male screw is formed on the outer circumference of the front end of the shaft body. The second shaft portion B2 is obtained by processing a male screw on the outer circumference of a shaft body formed to have a predetermined size over the entire axial direction.
【００１２】 その両軸部Ｂ１，Ｂ２の結合に際しては、予め第１軸部Ｂ１外周に前記スラス トベアリング７及び軸受部材Ｍを嵌合させてからジョイントカラーＣの右半部内 周の雌ネジを螺合させ、次いで同ジョイントカラーＣの左半部内周の雌ネジに第 ２軸部Ｂ２の外周基部を螺合させてその両軸部Ｂ１，Ｂ２の対向端部相互をジョ イントカラーＣ内で衝合させ、しかる後にジョイントカラーＣの外周２ヵ所に転 造カシメ６1 ，６2 を施すことにより、該カラーＣを各軸部Ｂ１，Ｂ２にそれぞ れ固定し、かくしてハンドルジョイントＨを一体化したネジ棒Ｂが得られる。When connecting the shaft portions B1 and B2, the thrust bearing 7 and the bearing member M are fitted to the outer periphery of the first shaft portion B1 in advance, and then the female screw on the inner periphery of the right half portion of the joint collar C is attached. Then, the female screw on the inner circumference of the left half of the joint collar C is screwed on the outer peripheral base of the second shaft B2 so that the opposite ends of both shafts B1 and B2 are inside the joint collar C. is abutted by performing roll forming caulking 6 1, 6 2 to the outer peripheral two positions of the joint collar C thereafter, their respective fixed the collar C to the shaft portions B1, B2, thus integrally handle joint H The converted threaded rod B is obtained.
【００１３】 このようにネジ棒Ｂが、軸受部材Ｍに嵌合される第１軸部Ｂ１と、ナット部材 Ｎに螺挿される第２軸部Ｂ２とに二分割されるので、その個々の軸部Ｂ１，Ｂ２ の長さを極力短く（図示例では第１軸部Ｂ１の長さを特に短く）することができ 、従ってその各々の軸部Ｂ１，Ｂ２の加工を行い易くすることができる上、その 両軸部Ｂ１，Ｂ２の結合前に、一方の軸部（図示例では第１軸部Ｂ１）の外端に ハンドルジョイントＨをヘッダー加工により支障なく一体に成形しておくことが できるから、全体として製造コストが節減されると共に、ネジ棒Ｂとハンドルジ ョイントＨ間の結合強度が高められる。Since the screw rod B is thus divided into the first shaft portion B1 fitted into the bearing member M and the second shaft portion B2 screwed into the nut member N, the individual shafts thereof are divided. The lengths of the parts B1 and B2 can be made as short as possible (the length of the first shaft part B1 is particularly short in the illustrated example), and therefore, the processing of the respective shaft parts B1 and B2 can be facilitated. Before connecting the shaft parts B1 and B2, the handle joint H can be integrally formed on the outer end of one shaft part (the first shaft part B1 in the illustrated example) by the header processing without trouble. The manufacturing cost is reduced as a whole, and the bonding strength between the screw rod B and the handle joint H is increased.
【００１４】 また図示例のようなネジ棒ＢをハンドルジョイントＨを介して回動操作して荷 受台２を上昇させると、それが所定の上昇限界位置まで達したときに、図１に鎖 線で示した如くジョイントカラーＣの、ジャッキ中央寄りの端面６ｓがナット部 材Ｎと係合してそれ以上の上昇を確実に規制することができる。従ってジョイン トカラーＣを荷受台２の上昇限界位置を規定するストッパ手段に兼用することが できる。Further, when the load bar 2 is lifted by rotating the threaded rod B as shown in the drawing through the handle joint H, the chain shown in FIG. 1 is reached when it reaches a predetermined lift limit position. As shown by the line, the end face 6s of the joint collar C near the center of the jack engages with the nut member N, and the further rise can be surely regulated. Therefore, the joint collar C can also be used as stopper means for defining the upper limit position of the load receiving base 2.
【００１５】 次に図４，５を参照して本考案の第２実施例を説明する。この実施例のジャッ キＪ′は、２本のリンクアームをＹ字状に連結した所謂Ｙ型ジャッキと呼ばれる 形式のもので、そのリンク機構Ｌ′は、下端が台座１′に揺動可能に枢支連結さ れた１本のロアアーム３′と、そのロアアーム３′の上端寄りの中間部に揺動可 能に枢支連結５され且つ上端に荷受台２′を装着した１本のアッパアーム４′と より構成される。ロアアーム３′の上部に穿設したＣ字状係合孔３ａの上端部に は、ネジ棒Ｂ′の基端部が螺挿されるナット部材Ｎ′が、またアッパアーム４′ の上部には、ネジ棒Ｂ′の先端部が回転自在且つ軸方向相対移動不能に嵌合され るナット部材Ｎ′が、それぞれ枢軸５2 ′，５1 ′を介して回動自在に支持され る。Next, a second embodiment of the present invention will be described with reference to FIGS. The jack J'of this embodiment is of a so-called Y-type jack in which two link arms are connected in a Y-shape, and the lower end of the link mechanism L'is swingable on the pedestal 1 '. One lower arm 3'which is pivotally connected, and one upper arm 4 which is swingably pivotally connected 5 to an intermediate portion near the upper end of the lower arm 3'and has a load receiving base 2'mounted on the upper end thereof. ′ And At the upper end of the C-shaped engaging hole 3a formed in the upper part of the lower arm 3 ', a nut member N'to which the base end of the screw rod B'is screwed is inserted, and at the upper part of the upper arm 4', a screw member is provided. bar B 'nut member N the tip Ru fitted freely and axially relatively immovable rotation' is, pivot 5 2 ', respectively, 5 1' Ru is rotatably supported via a.
【００１６】 而してネジ棒Ｂ′を回動操作してその回動軸線方向にナット部材Ｎ′と軸受部 材Ｍ′とを相互に接近させると各アーム３，４が起立して荷受台２を上昇させ、 またその両部材Ｎ′，Ｍ′を相互に離間させると各アーム３，４が伏倒して荷受 台２を下降させることができ、またその下降途中で前記ロアアーム３′のＣ字状 係合孔３ａの下端部にナット部材Ｎ′の枢軸５1 ′を移動させるようにすれば、 リンク機構Ｌ′をコンパクトに折り畳むことができる。以上は、Ｙ型ジャッキと して従来普通の構成である。When the screw rod B ′ is rotated to bring the nut member N ′ and the bearing member M ′ close to each other in the direction of the rotation axis thereof, the arms 3 and 4 stand upright and the load receiving stand. 2 is lifted and both members N'and M'are separated from each other, the arms 3 and 4 are laid down to lower the load receiving base 2. In addition, C of the lower arm 3'is lowered during the lowering. if the lower end of the shaped engaging hole 3a so as to move the 'pivot 5 1' nut member N, it can be folded a link mechanism L 'compactly. The above is the conventional configuration as a Y-type jack.
【００１７】 ネジ棒Ｂ′は、前記軸受部材Ｍ′に嵌合され先部外周に雄ネジが刻設される比 較的短い第１軸部Ｂ１′と、前記ナット部材Ｎ′に螺挿される比較的長い第２軸 部Ｂ２′とより構成されており、その両軸部Ｂ１′，Ｂ２′間は、それら間に跨 がって被嵌・螺合され且つ一端が軸受部材Ｍ′の一端面に当接するジョイントカ ラーＣ′を介して一体的に結合される。このジョイントカラーＣ′の各軸部Ｂ１ ′，Ｂ２′への固定も前実施例と同様、転造カシメ６1 ，６2 に依ってなされる 。前記第１軸部Ｂ１′の外端には外向きの係合フランジ部１０が一体に形成され ており、この係合フランジ部１０は、スラストベアリング７′を介して前記軸受 部材Ｍ′の他端面に係合しており、これによりネジ棒Ｂ′と軸受部材Ｍ′との軸 方向相対移動が規制される。前記第２軸部Ｂ２′の基部にはハンドルジョイント Ｈ′が一体に成形されており、このハンドルジョイントＨ′の構成は前実施例の それと同様である。The threaded rod B ′ is screwed into the nut member N ′ and a relatively short first shaft portion B1 ′ fitted to the bearing member M ′ and having a male screw engraved on the outer circumference of the tip portion. It is composed of a relatively long second shaft portion B2 ', and between the shaft portions B1' and B2 'is fitted and screwed across them and one end of the bearing member M'is They are integrally connected via a joint color C'which abuts the end faces. The fixing of the joint collar C'to the shaft portions B1 ', B2' is also performed by the rolling caulking 6 1 , 6 2 as in the previous embodiment. An outward engaging flange portion 10 is integrally formed at the outer end of the first shaft portion B1 ', and the engaging flange portion 10 is connected to the other bearing member M'via a thrust bearing 7'. The end faces are engaged with each other, whereby the axial relative movement between the screw rod B'and the bearing member M'is restricted. A handle joint H'is integrally formed at the base of the second shaft portion B2 ', and the structure of the handle joint H'is the same as that of the previous embodiment.
【００１８】 而して前記ネジ棒Ｂ′は第１及び第２軸部Ｂ１′，Ｂ２′が別々に製造される 。特に第２軸部Ｂ２′は、所定寸法に成形された軸体の一端にハンドルジョイン トＨ′の母体となる部分（フランジ状基部８′を含む）をヘッダー加工した後、 当該部分の先部をプレス加工してジョイント本体９′を成形し、一方、その軸体 の残り部分の外周全域に雄ネジを加工することにより得られる。また第１軸部Ｂ １′は所定寸法に成形された軸体の基端に係合フランジ部１０をヘッダー加工し た後、その先部外周に雄ネジを加工することにより得られる。Thus, the screw rod B'is manufactured with the first and second shaft portions B1 'and B2' separately. In particular, the second shaft portion B2 'is a tip portion of a shaft body formed to have a predetermined size after a portion (including a flange-shaped base portion 8') which is a base body of the handle joint H'is processed into a header. It is obtained by pressing to form a joint body 9 ', while forming a male screw on the entire outer circumference of the remaining portion of the shaft body. The first shaft portion B 1 ′ can be obtained by processing the engaging flange portion 10 at the base end of a shaft body molded to a predetermined size as a header, and then processing a male screw on the outer circumference of the tip portion.
【００１９】 その両軸部Ｂ１′，Ｂ２′の結合に際しては、予め第１軸部Ｂ１′外周にスラ ストベアリング７′及び軸受部材Ｍ′を嵌合させてからジョイントカラーＣ′の 左半部内周の雌ネジを螺合させ、次いで同ジョイントカラーＣ′の右半部内周の 雌ネジに第２軸部Ｂ２′の外周基部を螺合させてその両軸部Ｂ１′，Ｂ２′の対 向端部相互をジョイントカラーＣ′内で衝合させ、しかる後にジョイントカラー Ｃ′の外周２ヵ所に転造カシメ６1 ，６2 を施すことにより、該カラーＣ′を各 軸部Ｂ１′，Ｂ２′にそれぞれ固定する。而してこの実施例でもネジ棒Ｂ′を第 １及び第２軸部Ｂ１′，Ｂ２′より分割構成したことにより、第１実施例と同様 の作用効果が期待される。When connecting the shaft parts B1 ′ and B2 ′, the thrust bearing 7 ′ and the bearing member M ′ are fitted to the outer periphery of the first shaft part B1 ′ in advance, and then the left half part of the joint collar C ′ is fitted. The female screw of the circumference is screwed, and then the female screw of the inner half of the right half of the joint collar C'is screwed with the outer peripheral base of the second shaft portion B2 'so that both shaft portions B1' and B2 'face each other. The ends are made to abut each other in the joint collar C ', and then the outer periphery of the joint collar C'is provided with the rolling caulking 6 1 and 6 2 so that the collar C'is made into the respective shaft portions B1' and B2. Fixed to each '. Also in this embodiment, since the threaded rod B'is divided into the first and second shaft portions B1 'and B2', the same effect as that of the first embodiment is expected.
【００２０】[0020]
以上のように本考案によれば、ジャッキのネジ棒が、軸受部材に嵌合される第 １軸部と、ナット部材に螺挿される第２軸部とに二分割されるので、その個々の 軸部の長さを極力短くすることができ、従ってその各々の軸部の加工を行い易く することができる上、その両軸部の結合前に、一方の軸部の外端にハンドルジョ イントをヘッダー加工により支障なく一体に成形しておくことができるから、全 体として製造コストの節減に寄与し得ると共に、ネジ棒とハンドルジョイント間 の結合強度を高めることができる。また上記のようにネジ棒を二分割しても、そ の２つの軸部間をジョイントカラーを介して容易に結合することができる。 As described above, according to the present invention, since the screw rod of the jack is divided into the first shaft portion that is fitted to the bearing member and the second shaft portion that is screwed into the nut member, each of them is divided into two parts. The length of the shafts can be made as short as possible, thus making it easier to machine each shaft, and before connecting both shafts, the handle joint is attached to the outer end of one shaft. Since it can be integrally formed by processing the header without any hindrance, it can contribute to the reduction of the manufacturing cost as a whole and can increase the coupling strength between the screw rod and the handle joint. Further, even if the screw rod is divided into two as described above, the two shaft portions can be easily coupled to each other via the joint collar.
【図１】第１実施例のジャッキの全体正面図FIG. 1 is an overall front view of a jack according to a first embodiment.
【図２】図１の２−２線より見た拡大断面図FIG. 2 is an enlarged sectional view taken along line 2-2 of FIG.
【図３】第１実施例のネジ棒の、組立前と組立後の各状
態を示す分解斜視図FIG. 3 is an exploded perspective view showing the screw rod of the first embodiment in each state before and after assembling.
【図４】第２実施例のジャッキの全体正面図FIG. 4 is an overall front view of the jack of the second embodiment.
【図５】図４の５−５線より見た拡大断面図5 is an enlarged sectional view taken along line 5-5 of FIG.
Ｂ，Ｂ′…………ネジ棒 Ｂ１，Ｂ１′……第１軸部 Ｂ２，Ｂ２′……第２軸部 Ｃ，Ｃ′…………ジョイントカラー Ｈ，Ｈ′…………ハンドルジョイント Ｊ，Ｊ′…………ジャッキ Ｌ，Ｌ′…………リンク機構 Ｍ，Ｍ′…………軸受部材 Ｎ，Ｎ′…………ナット部材 １，１′…………台座 ２，２′…………荷受台 ３1 ，３2 ………リンクアームとしてのロアアーム（第
１実施例） ３′ …………リンクアームとしてのロアアーム（第
２実施例） ４1 ，４2 ………リンクアームとしてのアッパアーム
（第１実施例） ４′ …………リンクアームとしてのアッパアーム
（第２実施例）B, B '......... Screw rod B1, B1' ... First shaft part B2, B2 '... Second shaft part C, C' ... Joint color H, H '... Handle joint J, J '... Jack L, L' ... Link mechanism M, M '... Bearing member N, N' ... Nut member 1, 1 '... Pedestal 2, 2 lower arm (second embodiment) as a 'lower arm (first embodiment) 3 as ............ receiving platform 3 1, 3 2 ......... link arms' ............ link arm 4 1, 4 2 ... ...... Upper arm as a link arm (first embodiment) 4 '......... Upper arm as a link arm (second embodiment)
Claims (1)
４1 ，４2 ；３′，４′）を備えたリンク機構（Ｌ，
Ｌ′）を介して台座（１，１′）に荷受台（２，２′）
を昇降可能に連結支持し、一部のリンクアーム（３1 ，
４1 ；４′）に設けた軸受部材（Ｍ，Ｍ′）にネジ棒
（Ｂ，Ｂ′）の基部を回転自在且つ軸方向相対移動不能
に嵌合すると共にそのネジ棒（Ｂ，Ｂ′）の先部を、他
のリンクアーム（３2 ，４2 ；３′）に設けたナット部
材（Ｎ，Ｎ′）に螺挿し、前記ネジ棒（Ｂ，Ｂ′）に設
けられたハンドルジョイント（Ｈ，Ｈ′）を回動操作す
ることにより該ネジ棒（Ｂ，Ｂ′）及びリンク機構
（Ｌ，Ｌ′）を介して荷受台（２，２′）を昇降駆動で
きるようにしたジャッキにおいて、前記ネジ棒（Ｂ，
Ｂ′）は、前記軸受部材（Ｍ，Ｍ′）に嵌合される第１
軸部（Ｂ１，Ｂ１′）と、この第１軸部（Ｂ１，Ｂ
１′）にジョイントカラー（Ｃ，Ｃ′）を介して一体的
に連結されると共に前記ナット部材（Ｎ，Ｎ′）に螺挿
される第２軸部（Ｂ２，Ｂ２′）とより構成され、何れ
か一方の軸部（Ｂ１，Ｂ２′）外端には前記ハンドルジ
ョイント（Ｈ，Ｈ′）が一体に成形されたことを特徴と
する、ジャッキ。1. A plurality of link arms (3 1 , 3 2 ,
4 1 , 4 2 ; 3 ', 4') provided with a link mechanism (L,
L ') via the pedestal (1,1') to the receiving stand (2,2 ')
The link arms (3 1 , 1 ,
4 1 ; 4 ′), the base of the screw rod (B, B ′) is rotatably and axially immovably fitted to the bearing member (M, M ′) and the screw rod (B, B ′). ) Is screwed into a nut member (N, N ') provided on another link arm (3 2 , 4 2 ; 3'), and a handle joint provided on the screw rod (B, B '). A jack capable of vertically moving the load receiving tray (2, 2 ') through the screw rods (B, B') and the link mechanism (L, L ') by rotating (H, H'). , The screw rod (B,
B ') is a first member fitted to the bearing member (M, M').
The shaft portion (B1, B1 ') and the first shaft portion (B1, B1)
1 ') and a second shaft portion (B2, B2') integrally connected to the nut member (N, N ') through a joint collar (C, C'), A jack characterized in that the handle joint (H, H ') is integrally formed at the outer end of one of the shaft portions (B1, B2').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8006792U JP2534663Y2 (en) | 1992-11-19 | 1992-11-19 | jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8006792U JP2534663Y2 (en) | 1992-11-19 | 1992-11-19 | jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH078390U true JPH078390U (en) | 1995-02-07 |
| JP2534663Y2 JP2534663Y2 (en) | 1997-05-07 |
Family
ID=13707890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8006792U Expired - Fee Related JP2534663Y2 (en) | 1992-11-19 | 1992-11-19 | jack |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2534663Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0194839A (en) * | 1987-10-06 | 1989-04-13 | T M A:Kk | Avascularization tube |
| CN110451421A (en) * | 2019-09-19 | 2019-11-15 | 中国重汽集团柳州运力科迪亚克机械有限责任公司 | Hand retracting cylinder |
-
1992
- 1992-11-19 JP JP8006792U patent/JP2534663Y2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0194839A (en) * | 1987-10-06 | 1989-04-13 | T M A:Kk | Avascularization tube |
| CN110451421A (en) * | 2019-09-19 | 2019-11-15 | 中国重汽集团柳州运力科迪亚克机械有限责任公司 | Hand retracting cylinder |
| CN110451421B (en) * | 2019-09-19 | 2024-05-28 | 中国重汽集团柳州运力科迪亚克机械有限责任公司 | Hand-operated telescopic cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2534663Y2 (en) | 1997-05-07 |
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| LAPS | Cancellation because of no payment of annual fees |