An object of the present invention is sleeping on his back, is laid by applying the left and right equally manner protrusion on the back side, acupressure effect, in four projection acupressure device for obtaining the pressing effect, and use by changing the width between the projections very simple, and, to provide a four projection acupressure device, also used as two projections acupressure device and shoulder loosening device. A fixed projection board 2 and the movable projection panel 4, to create by connecting the slide plate 3. Fixed projection board 2 in the long form, have spread the width of both sides of the length direction, in symmetrical, to some extent of the van a thick, is provided by collateral the two projections 1 on both sides of the long direction in the face of a board, From van rectangular sides, in the orthogonal direction as viewed from the van, in a form protruding laterally, with easy to grip width palm, it is obtained by providing the sliding plate 3 of the elongated rectangle. Movable protrusions board 4 is fixed projection board 2 and the same shape, the same van is provided with two projections, traversing through orthogonally, to one in which a slide hole 5, was connected both panel with sliding plate 3 When, it should be in so as to be parallel both vertically and horizontally.BACKGROUND 1【課題】仰向けに寝て、背中側に左右均等的に突起を当てて敷き、指圧効果、押圧効果を得る四突起指圧器において、突起間の巾を極めて簡単に変えて使え、且つ、二突起指圧器及び肩ほぐし器としても使える四突起指圧器を提供する。【解決手段】固定突起盤2と可動突起盤4を、スライド板3でつないで作る。固定突起盤2は長形で、長方向の両側方の幅が広がっていて、対称形で、ある程度厚みのある盤の、盤面に二個の突起1を長方向の両側に並立して設け、盤の長方側部から、盤から見て直交方向に、横に突き出す形態で、掌に握りやすい幅で、細長長方形のスライド板3を設けたものである。可動突起盤4は、固定突起盤2と同形で、同じく二個の突起を設けた盤に、直交して横断貫通する、スライド穴5を設けたもので、両盤をスライド板3でつないだとき、縦横とも平行になるようにしておく。【選択図】図1
