초록 ▼

To provide a pivotal structure of an oscillating member facilitating management of parts and fixing work. The cylindrical peripheral face (11A) of a collar (11), which is fixedly secured by screwing a bolt (4) being inserted in a bolt insertion hole (11C ) into a tapped hole (13) in a fixed part (12

To provide a pivotal structure of an oscillating member facilitating management of parts and fixing work. The cylindrical peripheral face (11A) of a collar (11), which is fixedly secured by screwing a bolt (4) being inserted in a bolt insertion hole (11C ) into a tapped hole (13) in a fixed part (12), is rotatably fitted in a bearing hole (9) bored in a pivot guide portion (6) provided on the side of the pivotal support end of an oscillating member and, by means of collar movement restricting faces (8A, 10A) at the pivot guide portion (6), the cylindrical peripheral face (11A) is prevented from coming off the bearing hole (9). Since, the collar (11) is previously incorporated in the pivot guide portion (6) before the oscillating member is secured to the fixed part (12) and such assemblies can be arranged as a set of parts, management of parts and fixing work are made easier.

대표청구항 ▼

[ We claim:] [1.] A pivotal support structure for mounting the support end of an oscillating member on a bolt having a pivotal axis in a fixed part having a tapped hole, said support end having a bearing hole adapted to be mounted on said bolt, said structure comprising:a collar having a bolt insert

[ We claim:] [1.] A pivotal support structure for mounting the support end of an oscillating member on a bolt having a pivotal axis in a fixed part having a tapped hole, said support end having a bearing hole adapted to be mounted on said bolt, said structure comprising:a collar having a bolt insertion hole in the center thereof so as to extend through the collar along said pivotal axis, said collar having a cylindrical peripheral face formed in at least a portion thereof concentrically with said bolt insertion hole, and an inner axial end face facing toward the fixed part and adapted to be fixedly secured to the fixed part by the bolt being inserted in said bolt insertion hole and screwed into the tapped hole, an opposite axial face facing away from the fixed part adjacent the outer end of the collar, and a third axial face facing toward the fixed part; andsaid support end having a pivot guide portion, said portion providing at least a part of said bearing hole into which the cylindrical peripheral face of said collar is adapted to be rotatably fitted, and said bearing hole having at least two collar-movement-restricting axial surfaces for confronting said opposite and third axial faces for restricting movements of said collar in its axial direction thereby preventing said collar from coming out of said bearing hole and for permitting said portion to rotate on said collar about said pivotal axis.