JPH10165273A - Variable mirror - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve merchandise value and to facilitate adjusting operation by making smart the form of variable mirror usable as a plane mirror, convex mirror and concave mirror by expanding a flexible mirror board over a frame and changing the curvature degree of the mirror surface. SOLUTION: One end of supporting shaft 3 is fixed at the central part of the back of a mirror board 2 spread over a hollow frame 1, the lower part of a slide shaft 6 extended along with the back of the mirror surface is screwed with an inner terminal part 5' of an operating handle 5 fitted on one side of the frame so as to be freely rotated, a cam member 9 equipped with a cam groove 7 inclined is attached to the top end of the slide shaft 6, a pin 8 at the inner end of supporting shaft is engaged with the cam groove and by rotating the operating handle, the supporting shaft is moved back and forth corresponding to the position, where the cam groove of the cam member is engaged with the pin of supporting shaft, so that the curvature degree of the mirror board 2 can be changed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention allows a single mirror plate to be switched between a plane mirror, a convex mirror and a concave mirror by moving the center of a flexible mirror plate supported by a frame back and forth. And a variable mirror.

[0002]

2. Description of the Related Art Conventional variable mirrors include, for example, Japanese Utility Model No.
-16960 and JP-A-4-1255763.

[0003]

Problems to be Solved by the Invention
The mirror disclosed in Japanese Patent Application Laid-Open Publication No. H11-163873 has a frame in which a flexible mirror surface plate is stretched on the front surface supported by a strong frame from the back surface, and the screw screwed into the center of the back surface of the frame advances and retreats, and the mirror surface plate together with the frame. Is bent to allow switching between a plane mirror, a convex mirror and a concave mirror. The mirror disclosed in Japanese Utility Model Laid-Open No. 4-1255763 is configured such that a screw member that is screwed into the frame from the outside of the rear surface is rotated so as to be switched between concave, convex, and flat.

[0004] In any of the above-mentioned variable mirrors, the mirror surface is directly switched between concave, convex and flat by the advance and retreat of a screw, so that the advantage that the structure is simple is recognized. However, there is a drawback that the screw portion is exposed to the outside and the aesthetic feeling is inferior, and it is difficult to commercialize this type of product. Therefore, it is necessary to solve the problem by changing the variable adjustment structure of the variable mirror, which can be switched between concave, convex, and flat, to a smart one to make the aesthetic sense excellent and to make the variable operation easier. Had been an issue.

[0005]

SUMMARY OF THE INVENTION Therefore, according to the present invention, the axis is aligned substantially in the center of the back surface of a flexible mirror plate whose peripheral edge is supported by a hollow frame having a rear surface portion in the front-rear direction of the mirror. One end of the support shaft is fixed, and a slide shaft connected to the inner end of the operation handle rotatably mounted on the outside of the frame and screwed with the inner end to advance and retreat along the mirror surface by the rotation of the operation handle is connected. At the end of the slide shaft, a cam member provided on both sides with a cam groove inclined in the front-rear direction of the mirror is provided, and pins provided on both sides of the support shaft are fitted into the cam groove, and The present invention provides a variable mirror characterized in that the support shaft is moved in a front-back direction of a mirror in a hollow frame by a rotating operation, so that the mirror plate can be switched between a plane mirror, a convex mirror, and a concave mirror. is there.

[0006] The variable mirror according to the present invention having the above structure is
Except for the appearance of the frame's operation handle, all of the mirror's variable adjustment structure, consisting of the support shaft of the mirror plate, the cam member that moves the support shaft in the front-back direction of the mirror, and the slide shaft with the cam member attached, is hollow. Since the mirror is built in the frame, a mirror having a more aesthetic appearance than that of the conventional product is formed.

Further, since the variable adjustment operation of the mirror is performed by rotating the operation handle attached to one side of the frame, it is extremely convenient and can be performed quickly.
Adjustment operation can be easily performed. The present invention has solved the above-mentioned problems as described above.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in the drawing, a variable mirror according to the present invention has a rear surface 1 ', and a flexible mirror plate 2 is supported by a peripheral edge 2' and stretched to form a hollow body. A frame 1 to be formed, a support shaft 3 having one end fixed with its axis aligned in the front-rear direction of the mirror, and a cylindrical fixed handle extending to one side of the frame 1 substantially at the center of the back surface of the mirror plate 2. An operation handle 5 rotatably connected to the portion 4 and a cylindrical inner end portion 5 ′ of the operation handle 5 fitted inside the fixed handle portion 4 are screwed from the inside and along the rear surface of the mirror plate 2. A slide shaft 6 extending toward the center and a cam groove 7 integrally provided at the tip of the slide shaft 6 and inclined on the both sides in the front-rear direction of the mirror are provided. It has a cam member 9 fitted with pins 8 on both ends.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, in the embodiment, the present invention is applied to a hand mirror, and a circular frame 1 on which a mirror plate 2 is stretched.
This is a case where a handle of a hand mirror is formed by integrally extending a fixed handle portion 4 on one side and connecting an operation handle 5 with the fixed handle portion 4 having a common axis.

The mirror plate 2 is made of a transparent acrylic sheet on which aluminum is vapor-deposited. As shown in FIG. 2, the mirror plate 2 is provided between the inner peripheral edge of the frame 1 and a disk-shaped auxiliary plate 10 which is in contact with the rear side. The peripheral portion 2 ′ is supported and can be bent in the front-rear direction.

A support shaft 3 fixed to the center of the rear surface of the mirror plate 2 and having pins 8 on both sides engaged with a cam groove 7 of a cam member 9.
The cam groove 7 moves as the cam member 9 moves up and down in the figure.
When the position of the pin 8 fitted to the mirror is changed, the pin moves back and forth, and switches the mirror plate 2 between a plane mirror, a convex mirror and a concave mirror.

As shown in FIG. 2A, when the position of the pin 8 is at the center of the inclined cam groove 7, the mirror plate 2 is used as a plane mirror which does not curve unevenly. Also, FIG.
When the position of the pin 8 is on the upper side of the cam groove 7 as shown in FIG. 2, the mirror plate 2 bends the front surface into a convex shape and switches to a convex mirror, and as shown in FIG. When it is located below the cam groove 7 in the figure, it curves concavely and switches to a concave mirror.

As described above, the switching operation for switching the mirror plate 2 between the plane mirror, the convex mirror and the concave mirror is performed by turning the operation handle 5 attached to one side of the frame 1. In this embodiment, when the operation handle 5 is rotated clockwise, the screw portion 11 at the lower part of the slide shaft 6 is guided by the screw 12 on the inner surface of the inner end 5 ′ of the screwed operation handle 5, and together with the slide shaft 6. The cam member 9 rises and switches the mirror plate 2 to a convex mirror as described above. When the operation handle 6 is rotated to the left, the slide shaft 6 is lowered, and the mirror plate 2 can be switched to a concave mirror.

As is apparent from the above description and the drawings, the variable mirror according to the present invention, except for the operation handle 6, supports the support shaft 3 for changing the degree of curvature of the mirror plate 2, and the support shaft 3 in the front-rear direction of the mirror. A cam member 9 and a slide shaft 6 to be moved;
All the variable adjustment structures of the mirror, such as the inner end 5 'of the operation handle 5 for moving the slide shaft 6 along the rear surface of the mirror, are built in the hollow frame and are not visible.

[0015]

According to the present invention constructed as described above and used as described above, the form of the variable mirror which can be switched between the plane mirror, the convex mirror, and the concave mirror is extremely smart and simple. , It can be of high commercial value. In addition, the switching operation for switching the mirror surface plate in three ways can be performed by a very simple operation that is rotatably mounted on the outside of the frame and only rotates an operation handle provided on the outside of the frame in a desired direction. Easy because it can. The present invention has excellent effects as described above.

[Brief description of the drawings]

FIG. 1 is a front view, partially cut away, showing a first embodiment.

2 (a), 2 (b) and 2 (c) are partially cut-away longitudinal side views showing a state where a mirror surface is changed.

[Description of sign]

 DESCRIPTION OF SYMBOLS 1 Frame 1 'Back part 2 Mirror surface plate 2' Peripheral edge 3 Support shaft 4 Fixed handle 5 Operation handle 5 'Inner end 6 Slide shaft 7 Cam groove 8 Pin 9 Cam member 10 Secondary plate 11 Screw portion 12 Screw

Claims (2)

[Claims] An end of a support shaft whose axis is aligned with the front and rear direction of a mirror is fixed to substantially the center of the back surface of a flexible mirror plate whose peripheral portion is supported by a hollow frame having a back portion, A slide shaft, which is screwed to the inner end of the operation handle rotatably mounted on the outer side of the frame and which advances and retreats along the mirror surface by rotation of the operation handle, is connected to the end of the slide shaft. A cam member provided on both sides with a cam groove inclined in the front-rear direction of the mirror, a pin provided on both sides of the support shaft is fitted into the cam groove, and a rotation operation of the operation handle causes the hollow frame to be moved. A variable mirror, wherein the support shaft is moved in the front-rear direction of the mirror so that the mirror plate can be switched between a plane mirror, a convex mirror and a concave mirror. 2. The frame and the mirror plate are provided in a hand mirror shape, and the operation handle is rotatably connected to a fixed handle portion extending in a cylindrical shape from one side of the frame. 2. The variable mirror according to claim 1, wherein a handle of the hand mirror is formed together with the fixed handle.