JPH0251349U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the negative carrier device according to the invention, Fig. 2 is a partially cutaway plan view of the same in the set state, Fig. 3 is a sectional view taken along the line - - in Fig. 2, and Fig. 4. 5 is an exploded perspective view showing a part of the negative mask main body and the negative mask, and FIGS. 5 to 7 are cross-sectional views showing the state of attachment of the negative mask step by step. 1... Negative mask body, 2... Case, 3...
Film insertion hole, 4...upper plate, 5...lower plate, 6,
7...Window, 8...Protrusion, 9...Negative mask, 1
1...Positioning groove, 12...Positioning recess, 13
...Tapered surface, 14...First positioning protrusion, 1
5...Second positioning protrusion, 16...Press claw, 1
9...Spring, 20...Film guide groove, 2
1... exposure hole, 22... presser mechanism, 40... mask stand, 41... window, 42... guide section.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Film insertion holes are formed at opposite positions of a square case, windows for the holes are provided on the upper and lower plates of the case, and film guide grooves are provided inside the case. A negative mask having an exposure hole formed in the upper part of the negative mask, a negative mask body incorporating a holding mechanism for holding the negative film conveyed along the film guide groove of the negative mask, and a mask that detachably supports the negative mask body. A flange with equal dimensions between opposing sides is provided at the lower part of the outer periphery of the rectangular case in the negative mask body, a window is formed in the mask stand, and a window is formed on the upper surface of the mask stand, and a flange is provided on the lower part of the outer periphery of the rectangular case in the negative mask body. A negative carrier device for a printer, characterized in that a pair of guide parts for slidably guiding both side parts are provided, and a positioning member for positioning the insertion side front side of a case inserted along the guide parts is provided on a mask stand. (2) A window formed on the upper plate of the case is shaped to correspond to the outer circumference of the negative mask, and a pair of protrusions are formed at opposite positions on the inner circumference of the window, and one of the two sets of opposing surfaces on the outer circumference of the negative mask is formed. , a pair of guide grooves through which the protrusion can pass is formed on one opposing surface, a positioning recess is provided on one side of the other opposing surface, a positioning groove is formed on the other side, and a lower side surface having the positioning groove is formed. A tapered surface is provided on the upper side of the upper plate of the case, and a first positioning protrusion that fits into the positioning groove of the negative mask when the negative mask is inserted into the lower side of the upper plate from the window, and a guide groove and a protrusion. A second positioning protrusion is provided which fits into the positioning recess when the negative mask moves in a direction in which the position of the negative mask is shifted. 2. The negative carrier device for a printer according to claim 1, further comprising a push pawl provided on a side of the first positioning protrusion, which is moved backward by the force of the spring and moved forward by the elasticity of the spring.