JPS6233036U - - Google Patents

Description

[Brief explanation of the drawing]

1 to 4 show an embodiment of the insert filter holder according to the present invention. FIG. 1 is a sectional view taken along a plane including the optical axis A showing the inserted state;
Fig. 2 is a sectional view taken along a plane perpendicular to the optical axis, Fig. 3 is a sectional view taken along a plane including the optical axis A, showing the filter holder securely engaged with the interchangeable lens body, and Fig. 4. FIG. 2 is a sectional view taken along a plane including the optical axis A, showing a detachable state. 5 and 6 show other embodiments of the insertion holder according to the present invention, FIG. 5 is a sectional view taken from a plan view including the optical axis A, and shows the removed state, and FIG. FIG. 1: External wall of interchangeable lens body, 1a: Opening, 2:
Filter holder frame, 3: Cover part, 4: Filter mounting part, 5: Operation part, 6: Engagement/disengagement shaft, 6b:
Engaging portion, 7: first spring, 8: holding member, 1
0: Locking member, 10a: Lock portion, 10b: Contact portion, 12: Second spring.

Claims (1)

[Claims for Utility Model Registration] 1. In an insert filter holder that holds an auxiliary lens or filter and is inserted into the interchangeable lens body through an opening made in the interchangeable lens body, the attachment part of the auxiliary lens or filter and A filter holder frame having a cover portion that covers the opening when inserted, and an operating portion protruding from the cover portion, and is inserted into the filter holder frame so as to be rotatable and movable up and down between first and second positions. an engaging/disengaging shaft having an engaging portion, and a first biasing shaft that urges the engaging/disengaging shaft upward toward a first position.
a spring, a holding member which is attached so as to be rotatable only relative to the above-mentioned engagement/disengagement shaft and movable up and down with respect to the filter holder frame but cannot be rotated relative to the filter holder frame; and when the engaging portion of the engaging and disengaging shaft does not face the abutting portion, the engaging portion of the engaging and disengaging shaft can protrude to a position where it can be engaged with the opening, and the engaging portion of the engaging and disengaging shaft is a locking member having a locking portion that retracts to a position where it does not engage with the opening when the engaging portion hits the abutting portion due to rotation; and a second locking member that biases the locking member in a direction in which the locking portion protrudes. a spring, the first position of the engaging/disengaging shaft is set at a position where the locking part cannot engage with the opening, and the second position of the engaging/disengaging shaft is set at a position where the locking part is engaged with the opening. An insert filter holder characterized by being set in a position where it can be fitted. 2. A warning mark is provided on the operating section, which is exposed outside the cover when the engagement and disengagement shaft is in the first position, and is hidden within the cover when the engagement and disengagement shaft is in the second position. An insert filter holder according to claim 1 of the utility model registration claim. 3. The engaging and disengaging shaft is also biased in the rotational direction by the first spring so that the engaging part of the engaging and disengaging shaft rotates from a position where it contacts the abutting part to a position where it does not face the abutting part. An insert filter holder according to claim 1 or 2 of the utility model registration claim.