JPH064995U - Dustproof mechanism for cassette insertion slot - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a dustproof mechanism for a cassette VTR device to prevent dust from entering through the cassette insertion port. [Structure] A dustproof lid 1, and lids 2 and 3 attached to the left and right of the lid 1 so as to be slidable in the left-right direction with respect to the lid 1.
And pins 4 and 5 for attaching the lids 2 and 3, respectively, and springs 6 and 7 for moving the lids 2 and 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dustproof mechanism for a cassette insertion slot, and more particularly to a VTR device.

[0002]

[Prior art]

 In the conventional cassette insertion port dustproof mechanism, as shown in FIG. 4, a lid 10 is provided on the back of the cassette insertion port 8 for the dustproof mechanism of the cassette insertion port 8.

[0003]

[Problems to be solved by the device]

 In the conventional dustproof mechanism for the cassette insertion opening, there are gaps 11 and 12 between the cassette insertion opening 8 and the lid 10. This is because the width W8 of the cassette insertion port 8 must be larger than the width W10 of the lid 10 due to the function of inserting the cassette, and the gaps 11 and 12 were incomplete in dust prevention. Further, the gaps 11 and 12 were not preferable from the viewpoint of design.

[0004]

[Means for Solving the Problems]

 Means provided by the present invention to solve the above-mentioned problems are as follows: a dust-proof lid 1, lids 2 and 3 provided on the left and right sides of the lid 1, and sliding the lids 2 and 3 in the left-right direction. From pins 4a, 4b and 5a, 5b which are respectively attached to the lid 1 as much as possible, and springs 6 and 7 which press the lids 2 and 3 from the center of the lid 1 in the left-right direction outward in the left-right direction, respectively. It is a dust-proof mechanism of the cassette insertion port configured.

[0005]

【Example】

 The present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the present invention. The lids 2 and 3 are provided with laterally long guide holes 2a, 2b and 3a, 3b, respectively. The pins 4a, 4b, 5a, 5b are male screw parts and are composed of a head portion and a shaft portion, and the screw portion on the lower side of the shaft portion is screwed and fixed to the female screw of the lid 1. The cylindrical portions of these pins are fitted in the respective guide holes so that the lids 2 and 3 are guided and slid in the longitudinal direction of the lid 1. The lids 2 and 3 are pushed outward from the center of the lid 1 by the springs 6 and 7. However, by applying an external force that pushes the lid 2 or the lid 3 toward the lid 1, the lids 2 and 3 are moved inward. Is slid in the direction.

FIG. 2 is a front view of the state in which the lid 1 is closed before the cassette is inserted and when the cassette is completely inserted. At this time, since the lid 2 and the lid 3 are pushed outward by the springs 6 and 7, the width W of the entire lid is larger than the width W8 of the cassette insertion port, so there is no gap.

FIG. 3 is a front view (a) and a side view (b) showing a state in which the lids 1, 2, 3 are being opened and closed when the cassette is inserted and ejected. The lids 2 and 3 contact the side surface of the holder 9 and slide inward.

[0008]

【The invention's effect】

 As described above with reference to the embodiments, the present invention eliminates the gap between the cassette insertion port and the dust-proof lid, so that the dirt of the head due to the entry of dust or the like, the malfunction of the tape running system, the malfunction of the sensors, etc. Etc. can be prevented. Also, since there are no gaps, the aesthetics of the design can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a lid structure used in an embodiment of the present invention.

2 is a front view of a dustproof mechanism using the lid structure of FIG. 1 with the lid closed.

FIG. 3 is a front view (a) and a side view (b) of a dustproof mechanism using the lid structure of FIG. 1 in a state where the lid is being opened and closed.

FIG. 4 is a front view of a conventional dustproof mechanism.

[Explanation of symbols]

 1, 2 and 3 lids 4a, 4b, 5a and 5b pins 6 and 7 springs 8 cassette insertion opening 9 holders 10 lids

Claims (1)

[Scope of utility model registration request] 1. A dustproof lid 1, lids 2 and 3 provided on the left and right sides of the lid 1, and a pin 4 for attaching the lids 2 and 3 to the lid 1 slidably in the left and right directions.
A dust-proof mechanism for a cassette insertion port, which is composed of a, 4b and 5a, 5b, and springs 6 and 7 which press the lids 2 and 3 from the center of the lid 1 in the left-right direction toward the outside in the left-right direction, respectively.