JPH0359624A - Camera incorporating lens cover - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a camera with a built-in lens cover that has a lens cover that can be opened and closed in front of a photographic lens.

[Prior Art] Conventionally, a camera with a built-in lens cover and a filter for obtaining a soft focus effect during shooting, for example, was disclosed in Japanese Patent Application Laid-open No. 1983
-69046 etc. is publicly known. This prior art includes
It is disclosed that the lens cover can be opened and closed and the filter can be taken in and out using a single operating lever.

[Issue IJI is trying to solve] However, in the conventional example described in Section 2, the lens cover and filter are constructed as separate members, so the mechanism for moving each is complicated and the operability is poor. there were.

[Means for Solving the Problems] The present invention solves the drawbacks of the conventional example described above, and includes a lens cover member in a first position covering the front surface of the photographic lens and a second position retracted from the front surface of the photographic lens. In the camera with a built-in lens cover, the filter is integrally formed on the lens cover member, and photography can be performed when the lens cover member is in either the first position or the second position. It is characterized by the following.

[Example] An example of the present invention will be described below with reference to the drawings. 1st
In the figures to FIG. 3, l is a camera body, 2 is a shutter release button provided on the top surface of the camera body l,
Reference numeral 3 denotes a lens cover member that covers the front surface of a photographing lens, which will be described later. A foot portion 3a is integrally formed in the lens cover member 3, and the end portion of the foot portion 3a is bifurcated into a first action portion 3b and a second action portion 3C. Incidentally, the lens cover member 3 is pivotally attached to the camera body l by a rotary mechanism 13 by a vehicle 4.

Reference numeral 5 designates a protrusion that is formed approximately at the center of the leg portion 3a, and 6 is a protrusion that is formed near the tip of the action portion 3c. Reference numeral 7 denotes a stopper for preventing counterclockwise rotation of the lens cover member 3, and as shown in FIG. or is in contact with the stopper 7.

Reference numeral 8 denotes a filter attached to the lens cover member 3, and the filter 8 has a center portion 8, for example, as shown in FIG.
By making the area a transparent and the peripheral area 8b a matte surface, the peripheral area of the screen of the photographed photograph is made to look like a white mist. In Figure 2, 9 is a finder window;
1O is the strobe light emitting unit, 11 is the IsO sensitivity setting knob,
Reference numeral 12 denotes a filter set knob, which is used when photographing with the filter 8 placed in front of the shadow lens 11. Furthermore, 13 is a self-timer knob, and 14 is a lens cover opening/closing knob.By sliding the knobs 14 counterclockwise in Figure i2, the lens cover member 3 is retracted from the photographing optical axis, and at the same time a main switch (not shown) is activated. turns on. In Figure 1, 15
is a stopper for preventing the lens cover member 3 from rotating more than a predetermined amount in the clockwise direction, and as shown in FIG. or the stopper 15.

Reference numeral 16 denotes an opening/closing lever that moves integrally with the lens cover opening/closing knob 14, and the opening/closing lever 16 has an arc-shaped elongated hole 16.
a, 16b are bored, and a recess i'116c that engages with the protrusion 5 is formed at the tip thereof.

17 and 18 are the shafts installed in the camera body l, respectively.
This axis! 7.18 are fitted into the elongated holes 16a and 16b, respectively. Here, in the state shown in FIG.
, 1B are located at the lower ends of the elongated holes 16a and 16b.

20 is a leaf spring fixed to the camera body l, and the leaf spring 2
An operating portion 20a bent into a substantially V-shape is integrally formed at the tip of the 0. The action 520a is achieved by abutting either the left slope or the right slope of the first acting portion 3b of the lens cover member 3, thereby applying a counterclockwise or clockwise rotation urging force to the lens cover member 3, respectively. giving.

Reference numeral 21 denotes a release lever that is activated by pressing down the shutter release button 2. Elongated holes 21a and 21b are formed in the release lever 21, and shafts 22 and 23 installed in the camera body l are connected to the shafts 22 and 23, respectively. Long holes 21a, 21b
It is inserted inside. 21c is a locking portion, and the locking portion 21
The release lever 21 is always biased in the upward direction by a spring 24 stretched between the camera body l and the camera body l. Reference numeral 21d denotes an action section, which is folded approximately perpendicularly to the paper surface of FIG. 25 is the shaft 26
The release lock lever 25 is rotatably attached to the camera body 1. As shown in FIG. 1, the lever 25 has an arm extending in four different directions. That is, 25a extends upward and is bent into an abbreviated shape, and depending on the situation, the acting portion 21d
25b is a second arm that extends to the right and can be engaged with the protrusion 6 depending on the situation; 25c is a substantially triangular protrusion that protrudes downward; 25d is a third arm portion extending to the left and having a hole through which the shaft 26 is inserted. Reference numeral 27 denotes a spring stretched between the second arm portion 25b and the camera body 1, and the spring 27 provides a biasing force so that the release lock lever 25 always rotates clockwise. . Furthermore, 28 is the release lock lever.
With a stopper that regulates the rotation range of 25.

In the state shown in FIG. 1, it is in contact with the right side surface of the first arm portion 25a. 29 is a lock release lever;
Elongated holes 29a, 29b are bored in the elongated holes 29a, 2.
A shaft 30, 31, which is implanted in the main body l, is inserted through each of the shafts 9b. Reference numeral 29c denotes a locking portion protruding from the upper part of the lock release lever 29, and the lock release lever 29 is always moved to the right by the action of a spring 32 stretched between the locking portion 29c and the camera body l. energized.

Incidentally, when the filter set knob 12 is moved to the left in FIG. 2, the lock release lever 29 is also moved in the same direction. 33 has an abbreviation shape, P5
The first arm 33a and the second arm 33b.

It is a lever having an operating part 33c bent at the tip of the arm part 33b at a substantially right angle to the paper plane of FIG. 1, and is pivotally connected to the rotating white flower by a shaft 34 planted in the camera body l. 35
is an interlocking lever that connects the approximate tip of the lock release lever 29 and the first arm 33a of the lever 33. By moving the lock release lever 29 leftward from the state shown in FIG. 1, the lever 33 is moved clockwise. and the said action flI3
3. Is c the release lock lever 25? ! 125 c
Press to rotate the lever 25 counterclockwise.

FIG. 7 is a schematic diagram showing the layout of a camera according to the present invention. The figure shows the camera body 1 viewed from the front, with reference numeral 36 a finder unit, 37 a cartridge chamber for loading a film cartridge (not shown), L a photographing lens, and 38 a winding of a film (not shown). There is a spool chamber containing a spool 39 for taking the film, and a motor (not shown) for feeding the film is built in the spool 39. 40 is a film feeding gear train provided below the cartridge chamber 37 and the spool chamber 38; 41 is a battery compartment located below the film feeding gear train 40 and offset to the left side in the figure; A battery (not shown) is housed in the battery chamber 41. With such a layout, the vertical dimension 9.1 can be made longer and the horizontal dimension intersection 2 can be made shorter than in the conventional case where the battery chamber is provided next to the spool chamber. Furthermore, when rotating the camera body l 90' counterclockwise from the state shown in FIG. The weight of the battery makes it easy to stand the camera body upright.

Next, the operation of the camera of the present invention based on the above configuration will be explained. First, in the state shown in FIGS. 1 and 2, the lens cover opening/closing knob 14 is located at the end rotated clockwise as shown in FIG. Therefore, as shown in FIG. 1, the opening/closing lever 16 has shafts 17 and 18 in contact with the lower right ends of the elongated holes 16a and 16b, respectively. That is,
The lens cover member 3 is disposed so as to cover the filter 8 in front of the photographing optical axis. At this time, even if you press the shutter release button 2 and try to push down the release lever 21, will the operating part 21d of the lever 21 or the release lock lever 25? Since it engages with the arm portion 25a of IS1, downward movement of the release lever 21 is prevented, resulting in a so-called release lock state. Therefore, photography in this state is impossible.

FIG. 4 shows a state in which the lens cover member 3 is retracted from the photographing optical axis and normal photographing is possible, and this will be explained below. First, the lens cover opening/closing knob l4 in the state shown in FIG. 2 is rotated counterclockwise (lower right).

Then, as shown in FIG.
move counterclockwise until they touch each other. At this time, since the recess 16c is engaged with the protrusion 5 of the lens cover member 3 as described above, the lens cover member 3 hits the stopper 15 with the shaft 4 as the center of rotation as the opening/closing lever 16 moves. Rotate clockwise until they touch. In addition, in the state shown in FIG.
Since the lens cover member 3 is in contact with the right slope of the first acting portion 3b, a rotation biasing force is applied to the lens cover member 3 in a clockwise direction. Furthermore, the protruding part 6 at the tip of the second action part 3C of the lens cover member 3 presses the second arm part 25b of the release lock lever 25, so that the lever 25 rotates counterclockwise about the shaft 26. Rotate to. Therefore, the release lever 21 can be pushed down after the engagement between the acting portion 21d and the first arm portion 25a as described above is released. In other words, the lens cover member 3 is Ii! In a state where the shadow is retracted from the optical axis, the release lever 21 is pushed down to release the tension of the shutter device (not shown) and photographing becomes possible.

Finally, referring to FIG. 5, a case will be described in which photography is performed while the lens cover member 3 remains on the photographing optical axis. In the state shown in the figure, the opening/closing lever 16 and the lens cover member 3 are in the same state as shown in FIG. 1, and the filter 8 of the lens cover member 3 covers the front surface of the optical axis 11. From this state, remove the filter set knob 12 (second filter) on the front of the camera.
(Fig.) to the left, the lock release lever 2
9 also resists the biasing force of the spring 32 and opens the elongated holes 29a, 29.
The shafts 30 and 31 move to the left until they come into contact with the right ends of the shafts 30 and 31, respectively. Then, the lever 33 rotates clockwise around the vehicle 34 due to the action of the interlocking bar 35. Further, since the acting portion 33c of the lever 33 presses the protrusion 25c of the release lock lever 25, the lever 25 rotates counterclockwise about the shaft 26.

Therefore, in the same way as explained in Fig. 4, the release lever
21 can be pressed down. In other words, since it is possible to take pictures while the filter 8 is on the photographing optical axis, 1. For example, if you use the filter 8 as shown in FIG. can be photographed.

[Effects of the Invention] As explained above, according to the present invention, the filter is integrally formed with the lens cover member, which simplifies the mechanism compared to the conventional structure in which the lens cover and filter are separate members. This has the advantage of improving operability.

[Brief explanation of drawings]

FIG. 1 is a plan view showing the internal configuration of a camera embodying the present invention, and FIG. 2 is a plan view showing the external appearance of the camera. :iS3 is a top view of Figure 2, Figures 4 and 5 are similar to Figure 1 showing different operating conditions, Figure 6 is a plan view of an example of a filter, and Figure 7 is a top view of Figure 2. FIG. 1 is a schematic diagram showing the layout of the camera of the invention. 1-...Camera body 2...Shutter release button 3...Lens cover member 8...Filter 21...Release lever L...Photographing lens// Fig. 6 Fig. 7

Claims (2)

[Claims] (1) The first lens cover member covers the front surface of the photographic lens.
In a camera with a built-in lens cover that is configured to be movable between a position of A camera with a built-in lens cover, characterized in that photography can be performed in both the position and the second position. (2) In the first position, the photographing operation is normally prohibited by blocking the shutter release operation, but the blocking is canceled by the operation of a predetermined operating means, and the filter is placed in front of the photographing lens. In the second position, normal photographing operations can be performed even when the lens cover member is not in front of the photographic lens in the second position. 1) Camera with built-in lens cover as described in section 1.