JPH0444548Y2 - - Google Patents
Info
- Publication number
- JPH0444548Y2 JPH0444548Y2 JP10952387U JP10952387U JPH0444548Y2 JP H0444548 Y2 JPH0444548 Y2 JP H0444548Y2 JP 10952387 U JP10952387 U JP 10952387U JP 10952387 U JP10952387 U JP 10952387U JP H0444548 Y2 JPH0444548 Y2 JP H0444548Y2
- Authority
- JP
- Japan
- Prior art keywords
- concave
- threaded rod
- thrust bearing
- retainer
- pantograph
- 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
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Description
【考案の詳細な説明】
＜産業上の利用分野＞
本考案は乗用車等に常時携行するのに適した、
小型軽量な車輌用のジヤツキであつて、パンタグ
ラフ型ジヤツキのネジ棒受部分の改良に関する。[Detailed description of the invention] <Industrial application field> The invention is suitable for being carried around in a passenger car or the like at all times.
This invention relates to an improvement in the threaded rod receiving part of a pantograph type jack, which is a small and lightweight jack for vehicles.
＜従来の技術＞
荷受台を有する上部アーム取付金具と下部の台
座間で、左右両側のネジ棒受に対して左右２本の
上部アームと左右２本の下部アームをパンタグラ
フ型に連結し、左右のネジ棒受間にネジ棒を挿通
した構造のパンタグラフ型ジヤツキは、そのネジ
棒受部分の構造についても既に多くの提案がなさ
れている。<Conventional technology> Two upper arms on the left and right and two lower arms on the left and right are connected in a pantograph shape to the threaded rod receivers on both the left and right sides between the upper arm mounting bracket with the loading platform and the lower pedestal. Regarding the pantograph type jack, which has a structure in which a threaded rod is inserted between threaded rod holders, many proposals have already been made regarding the structure of the threaded rod holder.
例えば、左右一対のネジ棒受のうち一方の小判
形断面のネジ棒受のハンドルジヨイント側の平面
部分に円板状のスラストベアリングの平面を当接
した構造（実開昭59−108792号）である。 For example, a structure in which the flat surface of a disk-shaped thrust bearing is in contact with the flat part on the handle joint side of one of the left and right threaded rod holders, which has an oval cross section (Utility Model Application No. 108792/1983) It is.
＜考案が解決しようとする問題点＞
従来品のこのような構造はジヤツキの操作を円
滑にする目的であるが、当該面積が小さい特徴を
有している。そこで、ネジ棒受とネジ棒の芯出し
が完全でない場合も生じて、ジヤツキの円滑な動
きが出来ず、スラストベアリングの早期損傷を招
くおそれがあつた。<Problems to be solved by the invention> The purpose of this structure of the conventional product is to facilitate the operation of the jack, but the area is small. Therefore, there were cases where the centering of the threaded rod holder and the threaded rod was not perfect, and smooth movement of the jack was not possible, leading to early damage to the thrust bearing.
＜問題点を解決するための手段＞
そこで、本考案者等はこのようなパンタグラフ
型ジヤツキにおいて、ネジ棒を挿通した一方のネ
ジ棒受４のハンドルジヨイント９側にスラストベ
アリング１０が当接する凹面当接部１１を設ける
と共に、スラストベアリング１０を凹面リテーナ
ー１２で形成したのである。<Means for Solving the Problems> Therefore, in such a pantograph type jack, the inventors of the present invention created a concave surface on which the thrust bearing 10 abuts against the handle joint 9 side of one of the threaded rod receivers 4 through which the threaded rod is inserted. In addition to providing the contact portion 11, the thrust bearing 10 is formed by a concave retainer 12.
本考案にいう凹面当接部１１は凹球面又は凹テ
ーパー面状のものであり、凹面リテーナー１２は
凹球面又は凹テーパー面状のものを示すことがで
きる。 The concave contact portion 11 according to the present invention has a concave spherical or concave tapered surface, and the concave retainer 12 can have a concave spherical or concave tapered surface.
＜作用＞
このような構造であると、ジヤツキの上下動作
をするネジ棒の回転に伴つて、芯出しが不完全で
あつても球面又は円錐面で互に滑つて、自己調芯
する作用が得られる。<Function> With this structure, as the threaded rod that moves up and down the jack rotates, even if the centering is incomplete, the spherical or conical surfaces will slide against each other, resulting in a self-aligning action. can get.
＜実施例＞
以下図面によつて本考案の実施例を詳細に説明
する。<Examples> Examples of the present invention will be described in detail below with reference to the drawings.
第１図〜第３図はそれぞれ本考案の実施例の要
部縦断面図であり、第４図は自動車用パンタグラ
フ型ジヤツキの一例を示す正面図である。 1 to 3 are longitudinal sectional views of essential parts of embodiments of the present invention, and FIG. 4 is a front view showing an example of a pantograph type jack for an automobile.
パンタグラフ型ジヤツキは第４図にみられるよ
うに、荷受台を有する上部アーム取付金具１と下
部の接地台座２の間に、左右両側のネジ棒受３，
４に対して左右２本の上部アーム５ａ，５ｂと左
右２本の下部アーム６ａ，６ｂをパンタグラフ型
に連結し、左右のネジ棒受３，４間にネジ棒７を
挿通した構造である。 As shown in Fig. 4, the pantograph type jack has threaded rod holders 3 on both the left and right sides between the upper arm mounting bracket 1 having a loading platform and the lower ground pedestal 2.
4, two left and right upper arms 5a, 5b and two left and right lower arms 6a, 6b are connected in a pantograph shape, and a threaded rod 7 is inserted between the left and right threaded rod receivers 3, 4.
ネジ棒７の基端部に貫通穴のあるハンドルジヨ
イント９が設けられており、これを回転させると
その回転方向によつて上部アーム取付金具１及び
その上の荷受台を上下動させることができる。 A handle joint 9 with a through hole is provided at the base end of the threaded rod 7, and when the handle joint 9 is rotated, the upper arm mounting bracket 1 and the load receiving platform thereon can be moved up and down depending on the direction of rotation. can.
本考案はこのようなパンタグラフ型ジヤツキの
ネジ棒を挿通した一方のネジ棒受４のハンドルジ
ヨイント９側をスラストベアリング１０が当接す
る凹面当接部１１とすると共に、スラストベアリ
ング１０を凹面リテーナー１２で形成している。 In the present invention, the handle joint 9 side of one threaded rod receiver 4 through which the threaded rod of such a pantograph type jack is inserted is made into a concave contact portion 11 on which a thrust bearing 10 comes into contact, and the thrust bearing 10 is connected to a concave retainer 12. It is formed by
第１図には凹面当接部１１が凹球面状であり、
凹面リテーナー１２が凹球面状の場合を示してい
る。凹面当接部１１と凹面リテーナー１２との間
にはスラストベアリング１０の例としてボールベ
アリング１３を用いた。 In FIG. 1, the concave contact portion 11 has a concave spherical shape,
A case is shown in which the concave retainer 12 has a concave spherical shape. A ball bearing 13 is used as an example of the thrust bearing 10 between the concave abutting portion 11 and the concave retainer 12.
第２図には凹面当接部１１が凹テーパー面状、
すなわち円錐状であり、凹面リテーナー１２が凹
テーパー面状の例を示す。この例も前記同様に凹
面当接部１１と凹面リテーナー１２との間にボー
ルベアリング１３が用いられている。 In FIG. 2, the concave contact portion 11 has a concave tapered surface shape,
That is, it has a conical shape, and an example is shown in which the concave retainer 12 has a concave tapered surface shape. In this example as well, a ball bearing 13 is used between the concave surface contact portion 11 and the concave surface retainer 12, as described above.
第３図に示したのは、凹面当接部１１が凹球面
であり、凹面リテーナー１２が凹球面状のもので
あるが、スラストベアリング１０としてボールベ
アリングに替えてオイルレスメタル１４を用いた
例である。 In the example shown in FIG. 3, the concave contact portion 11 is a concave spherical surface and the concave retainer 12 is a concave spherical surface, but an oil-less metal 14 is used as the thrust bearing 10 instead of a ball bearing. It is.
以上の本考案品はいずれも、ねじ棒受３，４が
円形断面となつているので、製作も容易である
し、材料費が安価である。 In all of the above-described products of the present invention, the threaded rod receivers 3 and 4 have a circular cross section, so they are easy to manufacture and the material cost is low.
＜考案の効果＞
本考案は以上のような構造であるから、自己調
芯により部分的な当りが緩和されてスラストベア
リングの寿命が向上し、また、限られた投影面積
内で接触面積を大きくとれるので、ネジ棒受とベ
アリングの添いがより安定する。更に、球面又は
テーパー面にしたことにより、ベアリングの剛性
が向上する等の効果が得られた。<Effects of the invention> Since the present invention has the above-described structure, self-alignment alleviates partial contact and improves the life of the thrust bearing.It also increases the contact area within a limited projected area. Since it can be removed, the alignment between the threaded rod holder and the bearing becomes more stable. Furthermore, by forming the bearing into a spherical or tapered surface, effects such as improved bearing rigidity were obtained.
第１図〜第３図はそれぞれ本考案の実施例の要
部縦断面図であり、第４図は自動車用パンタグラ
フ型ジヤツキの一例を示す正面図である。
１……上部アーム取付金具、２……台座、３，
４……ネジ棒受、５ａ，５ｂ……上部アーム、６
ａ，６ｂ……下部アーム、７……ネジ棒、９……
ハンドルジヨイント、１０……スラストベアリン
グ、１１……凹面当接部、１２……凹面リテーナ
ー。
1 to 3 are longitudinal sectional views of essential parts of embodiments of the present invention, and FIG. 4 is a front view showing an example of a pantograph type jack for an automobile. 1... Upper arm mounting bracket, 2... Pedestal, 3,
4...Threaded rod holder, 5a, 5b...Upper arm, 6
a, 6b...Lower arm, 7...Threaded rod, 9...
Handle joint, 10... Thrust bearing, 11... Concave contact portion, 12... Concave retainer.
Claims (1)
の台座２間に、左右両側のネジ棒受３，４に対
して左右２本の上部アーム５ａ，５ｂと左右２
本の下部アーム６ａ，６ｂをパンタグラフ型に
連結し、左右のネジ棒受３，４間にネジ棒７を
挿通したジヤツキにおいて、ネジ棒を挿通した
一方のネジ棒受４のハンドルジヨイント９側に
スラストベアリング１０が当接する凹面当接部
１１を設けると共に、スラストベアリング１０
を凹面リテーナー１２で形成してなることを特
徴とする自動車用パンタグラフ型ジヤツキ。 ２ 凹面当接部１１は凹球面又は凹テーパー面状
であり、凹面リテーナー１２は凹球面又は凹テ
ーパー面状である実用新案登録請求の範囲第１
項記載の自動車用パンタグラフ型ジヤツキ。[Scope of Claim for Utility Model Registration] 1. Between the upper arm mounting bracket 1 having a loading platform and the lower pedestal 2, two upper arms 5a, 5b on the left and right and two left and right arms 2 are connected to the threaded rod receivers 3, 4 on both the left and right sides.
In a jack in which the lower arms 6a and 6b of a book are connected in a pantograph shape and a threaded rod 7 is inserted between the left and right threaded rod holders 3 and 4, the handle joint 9 side of one of the threaded rod holders 4 through which the threaded rod is inserted. A concave contact portion 11 with which the thrust bearing 10 comes into contact is provided, and the thrust bearing 10
A pantograph type jack for an automobile, characterized in that it is formed by a concave retainer 12. 2. The concave contact portion 11 is a concave spherical surface or a concave tapered surface, and the concave retainer 12 is a concave spherical surface or a concave tapered surface.
Pantograph-type jack for automobiles as described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10952387U JPH0444548Y2 (en) | 1987-07-15 | 1987-07-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10952387U JPH0444548Y2 (en) | 1987-07-15 | 1987-07-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6414795U JPS6414795U (en) | 1989-01-25 |
| JPH0444548Y2 true JPH0444548Y2 (en) | 1992-10-20 |
Family
ID=31345845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10952387U Expired JPH0444548Y2 (en) | 1987-07-15 | 1987-07-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444548Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH083436Y2 (en) * | 1990-01-17 | 1996-01-31 | 和光工業株式会社 | Thrust bearing device for screw rod in pantograph type jack |
| CN100485807C (en) | 2003-06-30 | 2009-05-06 | 富士通微电子株式会社 | Semiconductor memory device |
-
1987
- 1987-07-15 JP JP10952387U patent/JPH0444548Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6414795U (en) | 1989-01-25 |
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