JP2005221649A - Camera - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a camera having a slide cover free from trouble such as scratch or soiling caused by the sliding of the slide cover, maintaining smooth operation and the quality of outside appearance in an initial stage over a long term and having durability. <P>SOLUTION: In the camera, the slide cover moves in a direction crossing with the optical axis of a photographic lens between a covering position where it covers the front of the photographic lens and an uncovering position where it exposes the front of the photographic lens, and an abutting member abutting on a member constituting the inside of the slide cover is arranged at a position where the outside surface of the camera is exposed when the slide cover is at the covering position, wherein the abutting member is formed of harder material than the material of the member constituting the inside of the slide cover. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a camera having a slide cover that is disposed on the outer surface of a camera and is movable between a position that covers the front surface of the photographing lens and a position that exposes the front surface of the photographing lens.

  In order to protect the photographic lens, etc. when carrying it, and to prevent dust from entering the camera, a closed position that covers the front surface of the photographic lens and the front surface of the photographic lens are placed along the outer surface of the camera. A camera having a slide cover (hereinafter also referred to as a barrier) that slides between exposed open positions is well known.

Such a camera having a slide cover that moves along the outer surface slides in the lateral direction while pressing the slide cover in the optical axis direction. Surfaces may rub against each other and cause scratches. In order to solve such a problem, the barrier appearance portion was formed of metal, a resin barrier receiving member was fixed inside the barrier appearance portion, and the resin barrier receiving member was formed of metal. A sliding surface with the camera body case side is disclosed (see, for example, Patent Document 1).
JP-A-8-29834

  However, the structure described in the above-mentioned patent document is good without any scratches at first, but when the barrier opening / closing operation is repeated many times, the resin barrier receiving member gradually wears and slides due to changes in the surface state. There is a problem that smooth opening and closing operations cannot be performed due to deterioration of the performance. As this further proceeds, there is a problem that the worn resin powder adheres to the camera body case side and becomes dirty, and the appearance quality is significantly reduced. That is, there is a problem of lack of durability.

  In view of the above problems, the present invention provides a camera having a durable slide cover that can maintain the original smooth operation and appearance quality over a long period of time without the problem of scratches and dirt caused by sliding of the slide cover. It is for the purpose.

  The above problem is solved by the following configuration.

  1) In a camera having a slide cover which is located on the outer surface of the camera and moves between a closed position covering the front surface of the photographing lens and an open position exposing the front surface of the photographing lens in a direction intersecting the optical axis of the photographing lens. When the slide cover is in the closed position, a contact member that contacts a member constituting the inside of the slide cover is disposed at a position where the outer surface of the camera is exposed, and the contact member is disposed on the slide cover. A camera formed of a material harder than a material of a member constituting the inside.

  2) The camera according to 1), wherein the contact member protrudes from an outer surface of the camera.

  3) The camera according to 1) or 2), wherein the abutting member has an arcuate cross-sectional shape in a direction orthogonal to the moving direction of the slide cover.

  4) The camera according to any one of 1) to 3), wherein the contact member and a member constituting the inside of the slide cover are configured to contact regardless of the closed position and the open position.

  5) The camera according to any one of 1) to 3), wherein an end of the contact member on the photographing lens side is formed so that an angle formed with an outer surface of the camera in the moving direction of the slide cover is an acute angle. .

  The present invention has the following effects.

  According to the above 1), the wear of both the abutting member and the member constituting the inside of the slide cover is reduced, there is no dirt, and the initial smooth operation and appearance quality can be maintained for a long time. A camera having a slide cover with excellent properties can be obtained.

According to the above 2), by ensuring a predetermined gap other than the contact portion, it is possible to prevent the occurrence of scratches regardless of the material forming the portion other than the contact portion on the camera surface. The contact member and the member constituting the inside of the slide cover can be brought into contact with each other by point contact or line contact, and in addition to the above effects, a smooth operational feel can be maintained over a long period of time.

  According to the above 4), since the contact member and the member constituting the inside of the slide cover are always in contact with each other, it is possible to eliminate a sudden load fluctuation during the movement of the slide cover and to make the operation feel smooth. It can be.

  According to the above 5), the operation feeling when moving from the slide cover closed position and starting to contact the contact member can be made smooth.

  Hereinafter, the present invention will be described in detail with reference to embodiments, but the present invention is not limited thereto.

  FIG. 1 is a front view showing an appearance of a camera 100 according to the present invention. FIG. 2A shows a state where the slide cover is in a closed position covering the front surface of the photographing lens, and FIG. 2B shows a state where the slide cover is opened to expose the front surface of the photographing lens.

  In FIG. 2A, reference numeral 11 denotes a front cover, which is formed in a substantially rectangular box shape with a metal material such as aluminum or stainless steel, and this front cover 11 is supported on the inside by a resin cover base. . Reference numeral 12 denotes a slide cover. The slide cover 12 slides on the front cover 11 to the left in the figure, and the state shown in FIG. The outer portion of the slide cover 12 shown in the figure is formed of a resin material, and a metal member configured for sliding is provided on the inner side. Reference numeral 13 denotes a strap attachment portion, and reference numeral 14 denotes a contact member according to the present invention, which is arranged so that the moving direction of the slide cover is the longitudinal direction.

  In FIG. 2B, 15 is a release button, 16 is a photographing lens, 17 is a finder window, 18 is a flash light emitting unit, and 19 is a light adjusting light receiving unit for dimming flash light.

  As shown in FIGS. 2A and 2B, the contact member 14 according to the present invention is exposed on the outer surface of the camera when the slide cover 12 is closed, and the contact member is exposed when the slide cover 12 is open. 14 is covered with the slide cover 12.

  FIG. 2 is a diagram showing an outline of the moving mechanism of the slide cover 12. FIG. 4A shows the closed position of the slide cover 12, and FIG. 4B shows the opened position of the slide cover 12. In the drawing, the front cover 11 is omitted. In the following drawings, in order to avoid duplication of explanation, the same reference numerals are given to the same functional members.

  In FIG. 2A, reference numeral 21 denotes a cover base, which is a member that is disposed inside the front cover 11 and supports the front cover 11. Reference numeral 22 denotes a slide frame, and the slide frame 22 has a flat portion 22f located on the inner inner surface of the slide cover 12 and a bent arm portion 22k. The arm portion 22k further includes a U-shape. A support portion 22r is formed. Engagement pins 22p are planted at two places on the end portion of the support portion 22r. The arm portion 22k and the support portion 22r enter the inside of the front cover 11 through the long hole portion 28 (see FIG. 1).

  A guide groove 21m that guides the engaging pin 22p planted in the support portion 22r is formed on the upper side surface of the cover base 21, and the guide planted in the support portion 22r along the guide groove 21m. As the coupling pin 22p moves, the slide frame 22 and the slide cover 12 move in a direction intersecting the optical axis of the photographing lens between a closed position covering the front surface of the photographing lens and an open position exposing the front surface of the photographing lens. It is like that.

  The guide groove 21m, the support portion 22r, and the engagement pin 22p are provided not only on the upper side surface of the cover base 21, but also on the lower side surface (not shown).

  A click spring 24, a rotation member 25, and a biasing member 26 that biases the rotation member 25 are provided on the upper surface of the cover base 21. In the closed position of the slide cover 12 shown in FIG. 5A, one projection 22t formed on the support 22r is brought into contact with and locked with the click spring 24.

  When an operating force is applied to the slide cover 12 in the direction indicated by the arrow from the state shown in FIG. 5A, the click spring 24 is unlocked, and is planted in the support portion 22r along the guide groove 21m. The engagement pin 22p also moves, and the slide cover 12 moves to the right in the figure.

  FIG. 4B shows a state in which the slide cover 12 has moved to the open position, and the other protrusion 22s formed on the support 22r abuts on the click spring 24 and is locked. At this time, the tip 22d of the support portion 22r rotates the rotating member 25 against the urging force of the urging member 26, and by switching a switch (not shown), the slide cover 12 is moved to the open position. Detected, the camera shifts to a shooting preparation state and starts operation of each part.

  The above is the outline of the moving mechanism of the slide cover 12.

  FIG. 3 is a schematic cross-sectional view of the vicinity of the contact member 14 according to the present invention cut at the position of the FF line shown in FIG. The figure shows the state of the slide cover 12 in the open position.

  As shown in the figure, the front cover 11 is fixed to the cover base 21 with a double-sided tape or an adhesive, and the contact member 14 is connected to the front surface through an opening formed in the front cover 11 which is the outer surface of the camera. It protrudes from the outer surface of the cover 11 and is assembled.

  As shown in the drawing, the abutting member 14 has a cross section of the abutting portion in a direction perpendicular to the moving direction of the slide cover in an arc shape, and a flat portion 22 f of the slide frame 22 positioned on the inner inner surface of the slide cover 12. Is configured such that a predetermined gap is formed on the front cover 11 other than the contact member 14 in terms of cross-section. The cross section of the abutting portion of the abutting member 14 in the direction orthogonal to the moving direction of the slide cover 12 is not limited to an arc shape, and can be substantially point-contacted in terms of an ellipse, a triangle, etc. May have any shape that allows substantially point contact or substantially line contact parallel to the moving direction of the slide cover 12. The abutting member 14 is made of a stainless steel material, and the abutting slide frame 22 is preferably made by subjecting a copper alloy material such as phosphor bronze or brass to surface treatment such as lubrication plating.

  In this way, the contact member 14 formed using a material harder than the slide frame 22 is provided, and is positively contacted with the slide frame 22 to ensure a predetermined gap on the front cover 11 other than the contact portion. As a result, it is possible to prevent the occurrence of scratches regardless of the material forming the part other than the contact part on the camera surface, reduce wear of the contact parts of both the slide frame 22 and the contact member 14, and have no dirt. Thus, it is possible to obtain a camera having a slide cover that can maintain the smooth operation and the appearance quality for a long time.

  FIG. 4 is a schematic cross-sectional view around the contact member according to the present invention cut at the position of the line GG shown in FIG.

  As shown in the figure, the end of the contact member 14 on the photographing lens side is formed at 45 degrees or less so that the angle θ formed with the outer surface of the camera is an acute angle. This angle θ is more preferably 30 degrees or less.

  By doing so, when the slide cover 12, that is, the slide frame 22 moves from the position shown in the drawing to the open position in the direction of the arrow in the figure and starts to contact the contact member 14, the slide frame 22 contacts smoothly. Since it abuts on the member 14, the operation feeling is further improved.

  In addition, when the slide frame 22 is formed by press working, it is preferable that the slide frame 22 is manufactured so that the return of the press is generated on the slide cover 12 side, and the operation feeling can be further improved.

  As described above, when the slide cover 12 is in the closed position, the contact member 14 that contacts the slide frame 22 that is a member constituting the inside of the slide cover 12 is disposed at the exposed position on the outer surface of the camera. By forming the contact member 14 with a material harder than the material forming the slide frame 22, it is possible to obtain a camera having a durable slide cover that can maintain the initial smooth operation and appearance quality for a long time.

  In the present embodiment, it has been described that the angle formed between the end of the contact member on the photographing lens side and the outer surface is an acute angle, but the member constituting the inner side of the slide cover slides. A configuration may be adopted in which the cover abuts regardless of the closed position and the open position. Even in this case, it is possible to eliminate a sudden load fluctuation when the slide cover is moved, and to make the operation feel smooth.

  The abutting member 14 has been described as projecting from the front cover 11 that forms the outer surface of the camera. However, the present invention is not limited thereto, and the abutting member 14 is disposed on the same surface as the front cover 11 and has a convex portion on the slide frame 22 side. It may be formed so that the convex portion comes into contact with the contact member 14, and does not depart from the present invention.

  Furthermore, although the example which has arrange | positioned the contact member 14 in one place of the substantially center of the slide frame 22 was demonstrated, it does not deviate from this invention even if it arrange | positions in multiple places.

It is a front view which shows the external appearance of the camera which concerns on this invention. It is a figure which shows the outline | summary of the moving mechanism of a slide cover. It is a schematic sectional drawing of the contact member periphery which cut | disconnected in the position of the FF line | wire shown in FIG.1 (b) based on this invention. It is a schematic sectional drawing of the contact member periphery which concerns on this invention cut | disconnected in the position of the GG line | wire shown to Fig.1 (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Front cover 12 Slide cover 13 Strap attaching part 14 Contact member 15 Release button 16 Shooting lens 17 Finder window 18 Flash light emission part 19 Light-receiving part for light control 21 Cover base 22 Slide frame 24 Click spring 25 Rotating member 26 Energizing member 100 cameras

Claims (5)

In a camera having a slide cover that is located on the outer surface of the camera and moves between a closed position that covers the front surface of the photographing lens and an open position that exposes the front surface of the photographing lens in a direction intersecting the optical axis of the photographing lens,
When the slide cover is in the closed position, a contact member that contacts a member constituting the inside of the slide cover is disposed at a position where the outer surface of the camera is exposed,
2. The camera according to claim 1, wherein the contact member is formed of a material harder than a material of a member constituting the inside of the slide cover. The camera according to claim 1, wherein the contact member protrudes from an outer surface of the camera. 3. The camera according to claim 1, wherein the abutting member has an arc shape in a cross-sectional shape in a direction orthogonal to a moving direction of the slide cover. The member which comprises the said contact member and the inner side of the said slide cover is comprised so that it may contact | abut irrespective of the said closed position and the said open position. Camera. The end of the contact member on the photographing lens side is formed so that an angle formed with an outer surface of the camera in the moving direction of the slide cover is an acute angle. The camera according to item 1.

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