JPH10339900A - Slide cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide cover capable of easily forming complicated shape and preventing a gate mark from appearing on appearance. SOLUTION: This slide cover 1 capable of sliding along a camera main body between a closing position where it covers over a photographing lens facing to a camera front side and an opening position where it retreats from the photographing lens is provided with a plastic molding member 11 engaged with the camera main body and a metallic plate 12 attached to the member 11 from the camera front side. A mount surface 11A on which the metallic plate 12 is mounted and a through-hole 11B opened to the mount surface 11A and covered up by the plate 12 are formed on the member 11. The gate mark 11C in the case of molding the member 11 is arranged on the side surface of the through-hole 11B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide cover which slides along a camera body between a closed position for covering a taking lens and an open position for retracting from the taking lens.

[0002]

2. Description of the Related Art A slide cover is known which slides along a camera body between a closed position for covering a taking lens and an open position for retreating from the taking lens. The slide cover is slidably supported by engaging with the camera body, and requires a somewhat complicated shape for engagement with the camera body. For this reason, the entire slide cover or the portion of the slide cover that engages with the camera body is manufactured by plastic molding.

[0003]

However, when plastic molding is performed by injection molding, a gate mark for injecting a plastic material into a molded member is formed.
It is necessary to hide such a gate trace from the exterior.

An object of the present invention is to provide a slide cover which can easily form a complicated shape and has no gate mark appearing on the exterior.

[0005]

FIG. 1 shows an embodiment of the present invention.
11A and 11B, the invention according to claim 1 is arranged along the camera body between a closed position covering the photographing lens 4A facing the front side of the camera and an open position retracted from the photographing lens 4A. The present invention is applied to the slide cover 1 which can be slid. A plastic molding member 11 that engages with the camera body, a metal plate 12 attached to the plastic molding member 11 from the front side of the camera, and a mounting surface 11A on which the metal plate 12 is mounted, The above-mentioned object is achieved by forming a through hole 11B which is opened in 11A and is concealed by the metal plate 12, and a gate mark 11C for molding the plastic molding member 11 is arranged on a side surface of the through hole 11B. You. According to a second aspect of the present invention, in the slide cover according to the first aspect, the metal plate is mounted on the mounting surface of the plastic molded member via an adhesive. The through hole 11B is used as a hole for letting out. Claim 3
According to the invention described in (1), in the slide cover according to claim 1 or 2, the plastic molded member 11 is formed by injection molding using a mold having a side gate structure. According to a fourth aspect of the present invention, there is provided the slide cover according to any one of the first to third aspects, wherein an outer cover 2 in which a camera body forms an outer shell of the camera, and an inner cover 3 attached to the outer cover 2. The slide cover 1 is sandwiched between the outer cover 2 and the inner cover 3 and is slidably supported.

[0006] In the section of the means for solving the above-mentioned problems, which explains the configuration of the present invention, the drawings of the embodiments of the present invention are used to make the present invention easy to understand. However, the present invention is not limited to this.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION

-One Embodiment of the Slide Cover According to the Present Invention- One embodiment of the present invention will be described with reference to FIGS. 1 and 2 are front views of a camera according to the present invention, and FIGS. 3 and 4 are sectional views taken along lines III-III and IV-IV of FIGS. 1 and 2, respectively. Reference numeral 2 denotes an outer cover that forms an outer shell of the camera body. Hereinafter, portions of the outer cover 2 that form the front, upper, and lower surfaces of the camera body are referred to as a front cover 2A, an upper cover 2B, and a lower cover 2C, respectively. On the front surface of the front cover 2A, a strobe light emission window 11 is provided at the upper right in the figure, an opening 2a (FIG. 2) is formed at the center, and a tunnel forming member 2D is attached at the left end. Both ends of the tunnel forming member 2D are fixed to the upper and lower ends of the front cover 2A, respectively, and a tunnel for accommodating one end of a slide cover 1 described later is formed between the member 2D and the front surface of the front cover.

Reference numeral 3 denotes an inner cover disposed inside the outer cover 2. A finder window 3a and a distance measuring window 3b are provided at a predetermined upper portion of the front cover, and a lens barrel 4 is protruded / retracted at a lower portion. Lens windows 3c are respectively formed. The finder window 3a, the distance measuring window 3b, and the lens window 3c can be exposed from the opening 2a of the front cover 2A. The lens barrel 4 includes a plurality of photographing lenses 4A.
And the optical axis L from the collapsed position shown in FIG. 3 to the wide-angle end position shown in FIG.
It is possible to move in the direction.

Reference numeral 1 denotes a slide cover disposed on the front surface of the front cover 2A, which is slidable in the lateral direction of the camera between a closed position shown in FIG. 1 and an open position shown in FIG. The slide mechanism of the slide cover 1 will be described later,
At the closed position, the opening 2a of the front cover 2A is closed to cover the taking lens 4A, the finder window 3a, and the distance measuring window 3b, and at the open position, they are retracted from the opening 2a to expose them.

The slide cover 1 comprises a plastic molded member 11 formed by injection molding, and a metal plate 12 adhered to the front of the camera of the plastic molded member 11. As shown in FIGS. 3, 9 and 10 (b), a mounting surface dropped on the rear surface of the camera by the thickness of the metal plate 12 with respect to the peripheral portion is provided at the center of the plastic molding member 11 on the front surface of the camera. 11A is formed, and a through hole 11B is formed in the center of the mounting surface 11A.

As shown in FIGS. 9, 10 (a) and 10 (b), two gate marks 11C projecting toward the center of the through hole 11B are formed on the side surface of the through hole 11B. The gate mark 11C is a gate portion for injecting a plastic material when the plastic molding member 11 is injection-molded. Gate mark 11C is mounting surface 1
Since it is covered and hidden by attaching the metal plate 12 to 1A, it does not appear in the appearance of the camera. 9 and FIG.
Numeral 0 schematically shows the slide cover 1, which is different from the actual shape of the slide cover 1.

On the upper and lower end surfaces of the slide cover 1 (plastic molded member 11), ridges 1b are formed over the entire length.
a can be brought into contact with the inner surface of the protruding portion 2b provided on the upper and lower portions of FIG. The right end of the slide cover 1 (plastic molded member 11) has a special shape in which the protrusion 1B is formed up and down as shown in FIG. 1. According to the shape, the right end of the front cover opening 2a is formed. Are formed, the opening 2a is opened when the slide cover 1 is closed.
Can be closed without gaps.

Next, the slide mechanism of the slide cover 1 will be described in detail with reference to FIGS. 5 and 6 are sectional views taken along lines VV and VI-VI in FIGS. 2 and 3, and FIGS. 7 and 8 are partially enlarged views of FIG. Overhanging portions 1A are formed on the upper and lower protruding portions 1B of the slide cover 1 (plastic molded member 11), and projecting portions 1A are formed on the rear side of the camera.
a protrudes in a direction perpendicular to the optical axis L. On the other hand, on the upper and lower surfaces of the inner cover 3, guide grooves 3d are provided in the camera lateral direction at positions somewhat recessed from the front surface, and the claws 1a of the slide cover 1 are slidably engaged with the guide grooves 3d. You. The upper surface and the lower surface of the inner cover 3 are opposed to the lower surface of the upper cover 2B and the upper surface of the lower cover 2C at predetermined intervals, respectively, and the protrusion 1A of the slide cover 1 is located in the gap.

3 is a liquid crystal display window provided on the upper cover 2B, 6 is a liquid crystal display panel, 7 is a liquid crystal display backlight, 8 is a mode selection switch, 9 is an electric mounting board, and 10 is a click switch. , 12 are viewfinders, FIG.
Reference numeral 13 denotes a release button. In addition, FIG.
Reference numeral 1 denotes a metal plate attached to a part of the surface of the upper cover 2B, the lower cover 2C, and the front cover 2A.
For example, it is the same as the metal plate 12 of the slide cover 1.

In the camera configured as described above,
When the slide cover 1 is in the closed position, the taking lens 4A, the finder window 3a, and the distance measuring window 3b are covered as shown in FIG. At this time, the ridges 1b formed on the upper and lower end surfaces of the slide cover 1 are in full contact with the protruding portions 2b of the front cover 2, thereby preventing the slide cover 1 from rising from the front cover 1.

When a leftward force is applied to the slide cover 1,
The slide cover 1 slides to the left while the upper and lower claws 1a slide in the upper and lower guide grooves 3d of the inner cover 3. At this time, the upper and lower overhangs 1A move through the gap between the upper and lower covers 2B and 2C and the inner cover 3 while penetrating the opening 2a of the front cover 2A. The ridge 1b of the slide cover 1 slides on the protrusion 2b, but since the protrusion 2b is provided only at the upper and lower portions of the opening 2a, the ridge 1b gradually moves with the opening of the slide cover 1. Withdrawing from the protruding portion 2b, the separated portion is exposed to the outside.

When the slide cover 1 is completely opened as shown in FIGS. 2 and 6, the ridge 1b is separated from the protrusion 2b except for a very short portion at the right end thereof. Part is the tunnel forming member 2D and the front cover 2
Since the slide cover 1 is accommodated in the tunnel between the front cover 2A and the front cover 2A, the slide cover 1 can be prevented from floating. That is, even if a force is applied to the left end (opening end) of the slide cover 1 toward the front of the camera for some reason, the front surface of the slide cover 1 abuts against the tunnel forming member 2D to prevent the slide cover 1 from rising. Is done. Therefore, a large force is not applied to the guide protrusion 1a provided on the right end portion of the slide cover 1, and the damage can be prevented. In addition, the tunnel forming member 2D can also be used as a grip for holding the camera,
Helps to hold the camera securely.

In this embodiment, when the slide cover 1 is closed, the opening 2a of the front cover 2A is closed, and at this time, the guide groove 3d of the inner cover 3 is completely shut off from the outside. Therefore, no foreign matter enters the guide groove 3d of the inner cover 3 from outside. This is a configuration that can be realized by forming the guide protrusion 1a for slide guide only on the right end side of the slide cover 1. On the other hand, when the slide cover 1 is in the open state, the opening 2a of the front cover 2A is opened, so that the guide groove 3d communicates with the outside. There is little fear. Therefore, in the camera of the present embodiment, the slide cover 1 can always be opened and closed smoothly.

-Manufacturing method of the slide cover of the present embodiment-The plastic molded member 11 is manufactured by injection molding. As shown in FIG. 11, the plastic molding member 11 is formed by pouring a plastic material into a mold (not shown) having a side gate structure from the through hole 11B outward through the runner R and the gate G. You. In general, when a mold having a side gate structure is used, the molding resin flows more easily into the mold than when a mold having a pin gate structure is used, which is suitable for a molded article having a complicated shape. Therefore, molding with a mold having a side gate structure is suitable when a complicated shape is required for an engagement portion with the camera body and the like.
The degree of freedom of the design can be increased.

When the molded plastic molded member 11 is separated from the mold, gate marks 11C remain on the side surfaces of the formed through holes 11B. Next, the metal plate 12 is attached to the attachment surface 11A of the plastic molded member 11 formed by injection molding, and covers the through hole 11B. Mounting surface 11
A and the metal plate 12 are bonded via an adhesive 13,
As shown in FIG. 10, the through hole 11B functions as an escape hole for the adhesive 13 when the metal plate 12 is bonded to the mounting surface 11A.

As described above, in the slide cover according to the present embodiment, the through hole 11B is used as a portion for disposing the gate of the mold having the side gate structure, and is used as an escape hole for the adhesive 13 for attaching the metal plate 12. The slide cover 1 having a complicated shape can be easily manufactured, and the slide mechanism and the gate trace 11C can be arranged separately from each other. Further, since the through hole 11B is covered with the metal plate 12, the gate mark 11C does not appear in the appearance.

When the slide cover is formed using a mold having a pin gate structure, gate marks are formed on the outer peripheral end of the slide cover. In this case, the slide structure is maintained. In addition, it is difficult to hide the gate trace, and the design constraint is increased. The slide cover according to the present embodiment solves such a problem.

[0023]

According to the slide cover according to the present invention,
A mounting surface for attaching a metal plate to the plastic molded member,
A through hole that is open on the mounting surface and is concealed by a metal plate is formed, and a gate mark for molding a plastic molded member is arranged on the side surface of the through hole, so it is complicated to use a side gate structure mold. Shape can be easily formed, and gate marks do not appear on the appearance.

[Brief description of the drawings]

FIG. 1 is a front view of a camera using a slide cover according to an embodiment of the present invention, showing a state where the slide cover is closed.

FIG. 2 is a view similar to FIG. 1, showing a state in which a slide cover is opened.

FIG. 3 is a sectional view taken along line III-III of FIG. 1;

FIG. 4 is a sectional view taken along line IV-IV of FIG. 2;

FIG. 5 is a sectional view taken along line VV of FIG. 1;

FIG. 6 is a sectional view taken along line VI-VI of FIG. 2;

FIG. 7 is a partially enlarged view of FIG. 3;

FIG. 8 is a partially enlarged view of FIG. 3;

FIG. 9 is an exploded view of the slide cover according to the embodiment;

10A and 10B are diagrams illustrating a slide cover according to an embodiment, wherein FIG. 10A is a perspective view of the slide cover, and FIG. 10B is a cross-sectional view of the slide cover.

FIG. 11 is an exemplary perspective view showing a method of manufacturing the slide cover according to the embodiment;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Slide cover 4A Photo lens 11 Plastic molded member 11A Mounting surface 11B Through hole 11C Gate mark 12 Metal plate 13 Adhesive

Claims (4)

[Claims] 1. A slide cover slidable along a camera main body between a closed position for covering a photographic lens facing the front of the camera and an open position retracted from the photographic lens, wherein the slide cover is engaged with the camera main body. And a metal plate attached to the plastic molding member from the front side of the camera. The plastic molding member has a mounting surface on which the metal plate is mounted, and an opening in the mounting surface which is concealed by the metal plate. And a gate mark for molding the plastic molding member is disposed on a side surface of the through hole. 2. The method according to claim 1, wherein the metal plate is attached to an attachment surface of the plastic molded member via an adhesive, and the through hole is used as a hole for releasing the adhesive when attaching the metal plate. The slide cover according to claim 1. 3. The slide cover according to claim 1, wherein the plastic molded member is formed by injection molding using a mold having a side gate structure. 4. The camera body has an outer cover forming an outer shell of the camera, and an inner cover attached to the outer cover, and the slide cover is sandwiched between the outer cover and the inner cover to slide. The slide cover according to any one of claims 1 to 3, wherein the slide cover is supported as possible.