JPS61142788U

JPS61142788U -

Info

Publication number: JPS61142788U
Application number: JP2481185U
Authority: JP
Priority date: 1985-02-25
Filing date: 1985-02-25
Publication date: 1986-09-03
Also published as: JPH0352799Y2

Description

[Brief explanation of the drawing]

図面は本案の実施例を示すものにして、第１図
はジヤツキを伸長させた場合の断面図、第２図は
ブツシユの斜視図、第３図はリングの斜視図であ
る。１……ジヤツキ本体、３……ネジ棒、４……中
間ネジ筒、６……ラム、８……外筒、９……ブツ
シユ、１１……囲繞溝、１２……リング。 The drawings show an embodiment of the present invention; FIG. 1 is a sectional view of the jack when it is extended, FIG. 2 is a perspective view of the bushing, and FIG. 3 is a perspective view of the ring. 1... Jacket body, 3... Threaded rod, 4... Intermediate threaded cylinder, 6... Ram, 8... Outer cylinder, 9... Bush, 11... Surrounding groove, 12... Ring.

補正昭６０．４．２実用新案登録請求の範囲を次のように補正する
。Amendment April 2, 1980 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】ジヤツキ本体の内方中央に、下端を傘歯車に固
定したネジ棒を立設し、上記ネジ棒上に、中間ネ
ジ筒の下部内方に設けた雌ネジを螺合させ、中間
ネジ筒の外周ネジ部に、ラムの下端内方に設けた
雌ネジ部を螺合させ、昇降するラムの通路を残し
て、中間ネジ筒の外側を囲む外筒の下端を、ジヤ
ツキ本体の上端開口に嵌合したスクリユージヤツ
キに於て、中間ネジ筒の下端外周にブツシユを嵌
合し、固定ピンなどにて中間ネジ筒と一体化する
と共に、ブツシユの外周に設けた囲繞溝にリング
を嵌合し、このリングはまた外筒の内面に設けた
囲繞溝とも嵌合し、このリングを介してブツシユ
を外筒の内面定位置に沿い回動し得るように連接
装置したことを特徴とする、スクリユージヤツキ
の補強装置。図面の簡単な説明を次のように補正する。明細書第４頁第２行目「１２……リング」のあ
とに「１３……囲繞溝。」を加入します。[Scope of Claim for Utility Model Registration] A threaded rod with its lower end fixed to a bevel gear is erected in the center of the inside of the jack body, and a female thread provided inside the lower part of the intermediate threaded cylinder is screwed onto the threaded rod. and screw the female threaded part provided inside the lower end of the ram into the outer circumferential threaded part of the intermediate threaded cylinder, leaving a passage for the ram to ascend and descend, and the lower end of the outer cylinder surrounding the outside of the intermediate threaded cylinder. In the screw jack fitted into the upper end opening of the jack body, a bush is fitted to the outer periphery of the lower end of the intermediate threaded cylinder, and is integrated with the intermediate threaded cylinder with a fixing pin , etc. , and a surrounding provided on the outer periphery of the bush. A ring was fitted into the groove, and this ring was also fitted into a surrounding groove provided on the inner surface of the outer cylinder , and a connecting device was provided so that the bush could be rotated along a predetermined position on the inner surface of the outer cylinder via this ring. A reinforcing device for screw jacks, which is characterized by: The brief description of the drawing has been amended as follows. Add "13...surrounding groove." after "12...ring" on the second line of page 4 of the specification.

Claims

[Scope of utility model registration request]

A threaded rod with its lower end fixed to the bevel gear is installed in the center of the inside of the jack body, and a female thread provided inside the lower part of the intermediate threaded cylinder is screwed onto the threaded rod, and the outer periphery of the intermediate threaded cylinder is screwed onto the threaded rod. Screw the female threaded part provided inside the lower end of the ram into the threaded part, and fit the lower end of the outer cylinder that surrounds the outside of the intermediate threaded cylinder into the upper end opening of the jack body, leaving a passage for the ram to move up and down. In the screwdriver, a bushing is fitted to the outer periphery of the lower end of the intermediate threaded cylinder, and is integrated with the intermediate threaded cylinder with a fixing pin, and a ring is fitted into the surrounding groove provided on the outer periphery of the bushing. A reinforcing device for a screw jack, characterized in that the bush is mounted so as to be rotatable along the inner surface of the outer cylinder via the ring.