JPH0444512U

JPH0444512U -

Info

Publication number: JPH0444512U
Application number: JP8636990U
Authority: JP
Priority date: 1990-08-16
Filing date: 1990-08-16
Publication date: 1992-04-15
Anticipated expiration: 2005-08-16
Also published as: JP2531888Y2

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例に係るボルトおよ
び重りの正面図、第２図は第１図のボルトおよび
重りを一体化させた状態の一部拡大断面図、第３
図は第１図のボルトを用いたジヨイント部を示す
要部斜視図、第４図は第３図のジヨイント部の釣
合い修正状態を示す平面図、第５図は第１実施例
の変形例のボルトおよび重りの正面図、第６図は
本考案の第２実施例にかかるボルトの斜視図、第
７図および第８図は第６図のボルトの一部破断正
面図および側面図、第９図は本考案の第３実施例
に係るボルトの斜視図、第１０図および第１１図
は第９図のボルトの一部破断正面図および側面図
、第１２図は本考案の第４実施例に係るボルトの
斜視図、第１３図および第１４図は第１２図のボ
ルトの一部破断正面図および側面図、第１５図は
本考案の第５実施例に係るボルトの斜視図、第１
６図及び第１７図は第１５図のボルトの一部破断
正面図および側面図、第１８図は従来のボルトを
用いたジヨイント部の要部斜視図である。符号の説明、１……ボルト、２……ボルト頭部
、３……ねじ、４……ねじ軸部、５……頂面、７
……喰い付き穴、８，２８……重り、９……テー
パ軸、１１，１２……ジヨイント部材、２０……
つば部、２１……ねじ穴、３８……重りワツシヤ
、４８，５８……重りねじ軸、４９，５９……重
りナツト。 Fig. 1 is a front view of the bolt and weight according to the first embodiment of the present invention, Fig. 2 is a partially enlarged sectional view of the bolt and weight of Fig. 1 in an integrated state, and Fig. 3
The figure is a perspective view of the main part showing the joint part using the bolt of Fig. 1, Fig. 4 is a plan view showing the balance correction state of the joint part of Fig. 3, and Fig. 5 is a modification of the first embodiment. 6 is a perspective view of the bolt according to the second embodiment of the present invention; FIGS. 7 and 8 are partially cutaway front and side views of the bolt in FIG. 6; FIG. 9 is a front view of the bolt and weight; The figure is a perspective view of a bolt according to a third embodiment of the present invention, FIGS. 10 and 11 are partially cutaway front and side views of the bolt of FIG. 9, and FIG. 12 is a fourth embodiment of the present invention. 13 and 14 are partially cutaway front and side views of the bolt in FIG. 12, and FIG. 15 is a perspective view of the bolt in accordance with the fifth embodiment of the present invention.
6 and 17 are a partially cutaway front view and a side view of the bolt shown in FIG. 15, and FIG. 18 is a perspective view of a main part of a joint portion using a conventional bolt. Explanation of symbols, 1...Bolt, 2...Bolt head, 3...Screw, 4...Screw shaft, 5...Top surface, 7
...Bunched hole, 8, 28... Weight, 9... Tapered shaft, 11, 12... Joint member, 20...
Flange portion, 21... screw hole, 38... weight washer, 48, 58... weight screw shaft, 49, 59... weight nut.

Claims

[Claims for Utility Model Registration] (1) A bolt comprising a bolt head and a screw shaft, characterized in that a weight is detachably attached to the bolt head. (2) The bolt according to claim 1, wherein a recessed hole having a circular cross section is provided on the top surface of the bolt head, and a weight having a tapered shaft is press-fitted into the recessed hole. (3) The bolt according to claim 1, wherein a screw hole is provided on the top surface of the bolt head, and a weight is screwed into the screw hole and fixed. (4) The bolt according to claim 1, wherein a screw hole is provided on the top surface of the bolt head, and the weight washer is fixed by a screw screwed into the screw hole. (5) The bolt according to claim 1, wherein a through hole is provided in the bolt head, a weight screw is inserted into the through hole, and an end of the weight screw is fixed with a bolt. (6) The bolt according to claim 1, wherein a screw hole is provided on the side surface of the bolt head, and a weight screw is screwed into the screw hole. (7) Claim 1 in which the moment of inertia is made variable by changing the length of the bolt head of the weight screw that projects laterally.
Bolts listed in.