JPH01112447U

JPH01112447U -

Info

Publication number: JPH01112447U
Application number: JP758988U
Authority: JP
Priority date: 1988-01-26
Filing date: 1988-01-26
Publication date: 1989-07-28

Description

[Brief explanation of the drawing]

第１図は上下のチヤツク装置の上側だけのチヤ
ツク装置を示したもので凹形面のチヤツク爪を使
用した場合の側面図、第２図は同じく下側だけの
チヤツク装置で同調機構を有しかつ凸形面のチヤ
ツク爪を使用した場合の側面図、第３図は従来の
チヤツク装置の側面図である。１……チヤツクヘツド、２……試験片装入部、
３……チヤツク爪、４′，４″……斜面、５′，
５″……くさび部、６……チヤツクホルダー、７
′，７″……斜面、８……チヤツクホルダー操作
ネジ、Ｙ……荷重軸線、Ｘ……直交線、２１……
凹窩、３１……伝導機構、３２……駆動源、Ａ…
…圧縮試験荷重より大きい荷重に耐え得る押し付
け装置。 Figure 1 shows a chuck device with only the upper side of the upper and lower chuck devices, and is a side view when using a chuck pawl with a concave surface, and Figure 2 shows a chuck device with only the lower side, which has a tuning mechanism. FIG. 3 is a side view of a conventional chuck device using a chuck pawl having a convex surface. 1... Chick head, 2... Test piece loading section,
3...chuck claw, 4', 4''...slope, 5',
5″...Wedge part, 6...Chuck holder, 7
', 7''...Slope, 8...Chuck holder operation screw, Y...Load axis, X...Orthogonal line, 21...
concave cavity, 31... transmission mechanism, 32... drive source, A...
...A pressing device that can withstand a load greater than the compression test load.

Claims

[Scope of claims for utility model registration] (1) A chuck head having a test piece loading section;
It has a pair of chuck claws that are inserted into the specimen loading section, and has a wedge part that has slopes opposite to each other in the loading direction on the rear surface, and a slope that fits the rear surface of each chuck claw on the front surface. A pair of chuck holders movable in parallel on a line perpendicular to the load axis, and a pair of chuck holder operating screws screwed into the chuck head so as to be freely reciprocated and reciprocated on the perpendicular line and on both sides of the axis. Features: A chuck device for both tension and compression of the material testing machine. (2) The chuck holder is slidably fitted into a recess provided on the orthogonal line from the test specimen loading portion of the chuck head, and the front surface of the chuck holder operating screw is on the rear surface of the chuck holder. The chuck device for both tension and compression of a material testing machine according to claim (1), wherein the chuck device is capable of freely coming into contact with each other. (3) Claim in which both chuck holder operating screws are connected to a common drive source via a transmission mechanism, and both chuck claws are advanced in synchronization.
(2) A chuck device for both tension and compression of the material testing machine described in (2). (4) A pair of chuck claws that are inserted into the test piece loading section, which are integrally equipped with a wedge portion having slopes with opposite slopes in the loading direction on the rear surface, and a slope that fits the rear surface of each chuck claw on the front surface. A pair of chuck holders that can be moved in parallel on a line orthogonal to the load axis.