JPH042389U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 shows the lateral positioning through hole according to the first embodiment of one cassette half of the tape cassette of the invention and the first cassette half of the other cassette half before the two cassette halves are assembled together. 1; FIG. 2 shows the lateral locating pin according to the embodiment of FIG. 1; A vertical sectional view schematically showing an enlarged view of the horizontal positioning pin shown in FIG. 1 inserted into the hole; FIG. FIG. 4 is an enlarged vertical cross-sectional view schematically showing a state in which a pair of cassette halves are connected to each other by "thermal caulking" by heating and compressing the tips of the direction positioning pins; A pair of cassette halves of the tape cassette of this invention are arranged in such a manner that the lateral positioning through holes according to the second embodiment of one of the cassette halves and the second embodiment of the other cassette half are in a state before they are assembled with each other. FIG. 5 is an enlarged longitudinal cross-sectional view showing the lateral positioning pins shown in FIG. A vertical sectional view schematically showing an enlarged state in which the horizontal positioning pin of
After the pair of cassette halves have been assembled correctly, the tips of the lateral positioning pins shown in Figure 4 are heated and compressed, resulting in the pair of cassette halves being joined together by "thermal caulking". FIG. 7 is an enlarged and schematic longitudinal sectional view of
A plan view schematically showing, from the inner surface side, one of a pair of cassette halves constituting a tape cassette to which the first and second embodiments of this invention are applied; FIG. No. 9 is an enlarged vertical cross-sectional view schematically showing the lateral positioning through hole of one cassette half and the lateral positioning pin of the other cassette half before the pair of cassette halves are combined with each other; The figure is an enlarged vertical cross section showing a state in which the lateral positioning pin shown in FIG. 8 is inserted into the lateral positioning through hole shown in FIG. 8 when a pair of cassette halves are properly assembled with each other. Figure; Figure 10 shows that after the pair of cassette halves have been correctly assembled with each other, the tips of the lateral positioning pins in Figure 8 are heated and compressed, resulting in the "heating" of the conventional pair of cassette halves. FIG. 2 is an enlarged vertical cross-sectional view schematically showing a state in which the parts are mutually connected by caulking. 10...cassette half, 12...side wall, 14a,
14b...Reel shaft insertion hole, 16...Peripheral wall, 18...Magnetic head/pinch roller insertion window, 20a, 20
b, 20c... Capstan/locating pin insertion hole, 22... Tape guide, 23... Pad spring support member, 24... Pad spring, 25... Tape pad, 2
6...Tape guide roller, 28...Tape guide,
30... Accidental erasure prevention claw storage recess, 32... Accidental erasure prevention claw, 34... Positioning pin insertion hole, 36... Liner sheet, 38... Reel hub, 40... Magnetic recording tape, 42b... Lateral positioning pin, 42a... Base end Part, 42b...Step part, 42c...Small diameter part (tip part), 5
0... Cassette half, 52... Side wall, 54... Lateral positioning through hole, 54a... Tip part, 54b... Step part, 54c... Small diameter part (base end part), 56, 58... Height regulation pedestal, 60... Base end Part side opening, 62...Processing recess, 64...Heating iron, 70a...Tapered part, 70
b...Small diameter part, 72...Proximal end side opening.

Claims (1)

[Claims for Utility Model Registration] (1) A pair of cassette halves that are combined with each other, a lateral positioning through hole formed in one cassette half, and a lateral positioning through hole formed in the other cassette half. a lateral positioning protrusion inserted into the hole; the distal end of the lateral positioning protrusion inserted into the lateral positioning through hole projects from the proximal opening of the lateral positioning through hole; The distal ends of the protrusions are heated and compressed to spread laterally, thereby joining the pair of cassette halves in a mutually assembled state, and the proximal end of the lateral positioning protrusion is wider than the area on the distal side. A tape cassette characterized in that the tape cassette is thick and only the proximal end thereof comes into close contact with the tip of the inner circumferential surface of the lateral positioning through hole to determine the lateral position of the pair of cassette halves. (2) A pair of cassette halves that are combined with each other, a lateral positioning through hole formed in one cassette half, and a lateral positioning hole formed in the other cassette half and inserted into the lateral positioning hole. a protrusion, the distal end of the lateral positioning protrusion inserted into the lateral positioning through hole projects from the proximal opening of the lateral positioning through hole, and the protruding distal end of the lateral positioning protrusion is heated and compressed. The pair of cassette halves are joined to each other by expanding laterally, and the lateral positioning through hole has a proximal end narrower than a distal region thereof. A tape cassette characterized in that only the proximal end portions determine the lateral position of the pair of cassette halves by coming into close contact with the tip portions of the outer peripheral surfaces of the lateral positioning protrusions.