JPH08168414A - Inspection mirror - Google Patents

Abstract

PURPOSE: To provide an inspection mirror capable of easily inspecting the narrow region of the space of machinery and hard to destruct. CONSTITUTION: This inspection mirror consists of two mirror plate materials 2, 3 different in length and these plate materials are connected in a freely stoppable manner by the hinge 8 fixed to the rear surfaces 6, 7 of the plate materials 2, 3 along the short sides thereof. By this hinge connection, one mirror plate material can be revolved with respect to the other mirror plate material within the range of about 270 deg. from a position where the mirror surfaces 4, 5 of the plate materials 2, 3 are mutually opposed at an almost right angle to a position where the rear surfaces 6, 7 are mutually overlapped. Each of the mirror plate materials 2, 3 is obtained by forming an aluminum layer 22 being a reflecting layer on one surface of a transparent plate 21 composed of an acrylic resin by vacuum vapor deposition and bonding a back plate 24 composed of soft polyvinyl chloride or synthetic rubber to the plate 21 by an adhesive layer 23 so as to cover the aluminum layer 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand mirror, and more particularly to an inspection mirror suitable for use in inspecting various kinds of equipment.

[0002]

2. Description of the Related Art In various factories and the like, it is important to inspect installed equipment and the like to make sure there are no abnormalities. When in close proximity to other machines or floors, it is impossible to visually inspect them without shifting or lifting the equipment. Therefore, it is desirable that the mirror can be inserted into a gap between the wall surface or the floor surface and the device and can be inspected through the image projected on the mirror surface.

[0003]

However, none of the conventional hand mirrors can be used in such applications in terms of shape, size, strength and handleability. Therefore, an object of the present invention is to provide an inspection mirror that is convenient to carry, is not easily broken, and is easy to handle especially in a narrow space.

[0004]

In order to achieve such a technical problem, the inspection mirror according to the present invention has two mirror plate materials having a mirror surface on one surface and a first angle at which the mirror surfaces form a substantially right angle. A hinge is rotatably connected within a range including a third angle that overlaps back to back through a second angle that forms one plane, and this hinge connection causes the end plates to be at least the first angle and the first angle. It can be held at any angle between the two angles.

It is preferable that each end plate member is a rectangle having a different length from each other, and the width of the end plate member is such that it fits in a human palm.
It is recommended that the short sides be hinged together.

Each of the end plates is composed of a laminated body in which a transparent plate, a reflective layer, an adhesive layer, and a back plate are laminated in this order. An acrylic resin plate is used as the transparent plate and a back surface of the transparent plate is used as the reflective layer. Vacuum deposition of aluminum layer on the back, soft vinyl chloride as the back plate, double-sided adhesive tape as the adhesive layer,
It is preferable to bond the aluminum layer and the soft vinyl chloride.

Further, it is preferable to use a hinge having a free-stop function for the hinge connecting portion, and this hinge may be fixed to either the outer surface of the transparent plate or the outer surface of the back plate.
It is advisable to fix it to the outer surface of the back plate in order to prevent the loss of images near the joint of the end plate.

Further, for protection of the inspection mirror and safety in use, it is desirable to provide a rising edge on the back plate so as to wrap the peripheral side edge of the laminate and the peripheral edge of the transparent plate. Further, the back plate may be integrally continuous over both of the two end plate materials.

[0009]

In the state where the two end plates are rotated at an arbitrary angle between the first angle and the second angle, one end plate is used as a handle and the other end plate is used as an image plane. . The rotation angle is appropriately selected according to the spatial conditions of the inspection site,
Holds at the selected angle. When not in use, the two end plate members are rotated to a third angle with each other to form a compact form. When the transparent plate is made of acrylic resin and the back plate is made of soft vinyl chloride, it is hard to break even if dropped, and it is easy to hold and lightweight.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 are perspective views of an inspection mirror which is an embodiment of the present invention.
The inspection mirror 1 is composed of a relatively long rectangular first mirror plate member 2 and a rectangular second mirror plate member 3 having the same width but relatively short. The length of the first end plate material 2 is such that it is housed in a chest pocket or the like and does not get in the way, for example, 10 to 10.
15 cm, the width of both end plate materials 2 and 3 is such that it can be easily gripped by the palm,
For example, 3 to 7 cm is suitable.

Each of the end plates 2 and 3 has a front surface 4 or 5 having a mirror surface on one side and back surfaces 6 and 7 on the other side, and hinges 8 fixed to the back surfaces 6 and 7 on the short sides of both surfaces. It is hinged. By this hinge connection, the second mirror plate member 3 rotates in the arrow direction from the angle at which the mirror surfaces 4 and 5 shown in FIG. 1 face the first mirror member 2 at a substantially right angle, and the back surface shown in FIG. About 2 up to the position where 6 and 7 come into contact
It is rotatable in the range of 70 degrees. A through hole 9 for inserting a string, a hook or the like is provided near the short side of the first end plate 2 opposite to the hinge 8.

The hinge 8 has a so-called free stop function. In this embodiment, as shown in the exploded perspective view of FIG. 3, the hinge cylinder 11 fixed to the back surface of the back plate 24 of the first end plate material 2 is used. Are fitted and aligned between the hinge cylinders 12, 12 fixed to the back surface 7 of the back plate 24 of the second end plate material 3, and the shaft is inserted into the bearing formed by the hinge cylinders 12, 11, 12. A corrugated slit is formed in the direction and a wave pin 13 having elasticity in the radial direction is press-fitted. By this hinge connection, the other end plate member 3 can be held with respect to one end plate member 2 at an arbitrary angle within the range of about 270 degrees described above.

Each of the end plate materials 2 and 3 is shown in FIG.
As shown by the representative example, an aluminum layer 22 which is a reflective layer is formed on the back surface of a transparent plate 21 made of an acrylic resin by vacuum deposition, and a back made of soft vinyl chloride or synthetic rubber is formed so as to cover the aluminum layer 22. The plate 24 is adhered by the adhesive layer 23. It is convenient to use a well-known double-sided adhesive tape as the adhesive layer 23.

As shown in FIG. 5, the back plate 24 has a rising edge 25 that covers the peripheral side edge of the laminate composed of the transparent plate 21, the aluminum layer 22 and the adhesive layer 23 and extends to the peripheral portion of the surface of the transparent plate 21. If so, the protection of the laminate is enhanced and the user is not injured at the edge corners.

Next, the usage and operation of the inspection mirror having the above-described structure will be explained. When viewing an image of a comparatively small area on the back surface or bottom surface of a device to be inspected, or a portion with a short depth that can be inserted. When viewing the device, hold the longer first end plate 2 as a handle and bend the shorter end plate 3 at an arbitrary angle within the range between the first angle and the second angle. Insert it into the space on the back or bottom of the device and watch the image of the desired part. At this time, since the hinge 8 has a free stop function, the end plate material 3 is maintained at the bent angle and is not accidentally closed or opened.

The angle of the second end plate member 3 with respect to the first end plate member 2 is slightly smaller than 180 degrees, for example, 150 to.
After bending at 120 degrees and inserting the tip into the back surface of the device etc., press the back surface of the end plate 3 against the wall surface etc. on the back side to adjust the bending angle to an angle that is easy to inspect. You may

When the area to be inspected has a relatively large area, the shorter end plate 3 is gripped and the longer end plate 2 is used as a mirror surface. The folding operation is the same as described above.

When the inspection mirror is stored after use, it is folded in two compactly by folding it until the back surfaces 6 and 7 of the back plate 24 come into contact with each other, and can be stored without protruding into a chest pocket or the like.

As described above, according to this embodiment,
Since the two end plates 2 and 3 having different lengths are hinged by aligning them in the longitudinal direction with the hinge 8 having a free-stop function, the longer end or the shorter end plate 2 or 3 is attached depending on the spatial condition of the inspection location. Can be used as a mirror surface and the other can be used as a handle, and the mirror plate material used as a mirror surface can be stably held at an arbitrary angle with respect to the handle-side mirror plate material. Also, since it can be folded in two, it is compact and convenient to carry. Furthermore, since an acrylic resin plate is used as the transparent plate, it is safe and hard to break even if dropped on a hard floor such as concrete in a factory.

Although the present invention has been described with reference to the embodiment, the present invention is not limited to this, and various modifications can be made. For example, as the hinge 8, it is possible to use one that uses a spiral pin instead of the wave pin 13. Needless to say, the length and width of each end plate member 2 and 3 can be appropriately selected. Further, the adhesive layer is not limited to the double-sided adhesive tape, and an adhesive may be applied. Further, the back plates 24 of the respective end plate members 2 and 3 may be integrally continuous so that, for example, both end plate members 2 and 3 hinged to each other by the hinge 8 fixed to the transparent plate 21 can be wrapped together.

[0021]

As described above, according to the present invention, an arbitrary one of two end plate members having different lengths is used as a mirror surface and the other end is used as a handle to spatially check a portion to be inspected. It is possible to use different sizes of the end plate materials according to the conditions, and the hinge connection with the free stop function holds the mirror surface at an arbitrary angle for reliable inspection. Further, since it can be folded in two, it has an advantage that it can be compactly stored in a pocket or the like.

[Brief description of drawings]

FIG. 1 is a perspective view of an inspection mirror according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the inspection mirror at a different angle from FIG.

FIG. 3 is an exploded perspective view showing a structure of a hinge of the inspection mirror.

FIG. 4 is a partial cross-sectional view showing a configuration of an end plate material of the inspection mirror.

FIG. 5 is a partial cross-sectional view showing the configuration of the end plate material according to another embodiment of the inspection mirror of the present invention.

[Explanation of symbols]

 1 Inspection mirror 2, 3 End plate material 4, 5 Front surface 6, 7 Back surface 8 Hinge 21 Transparent plate 22 Aluminum layer 23 Adhesive layer 24 Back plate 25 Standing edge

Claims (7)

[Claims] 1. A third angle at which two mirror plate materials having a mirror surface on one surface overlap back to back through a first angle at which the mirror surfaces form a substantially right angle and a second angle at which one mirror surface forms one plane. It is hinged so that it can rotate in the range including and,
An inspection mirror characterized in that the hinge connection is capable of holding the end plate members at an arbitrary angle at least between the first angle and the second angle. 2. The two end plates are formed into a rectangle having a width that fits in the palm of a person and different lengths from each other, and the two short sides are hinged to each other.
Inspection mirror described. 3. Each of the end plates is a transparent plate, a reflection layer,
The inspection mirror according to any one of claims 1 and 2, wherein the inspection mirror comprises a laminated body in which an adhesive layer and a back plate are laminated in order. 4. The transparent plate is made of acrylic resin, the reflective layer is vacuum-deposited aluminum layer on the back surface of the transparent plate, the adhesive layer is a double-sided adhesive tape, and the back plate is made of soft vinyl chloride. The inspection mirror according to any one of claims 1, 2 and 3, wherein the inspection mirror is provided. 5. A hinge which forms the hinge joint is fixed to the back plate.
Inspection mirror described in either 3 or 4. 6. The back plate has a rising edge that surrounds the peripheral side edge of the laminate and the peripheral edge of the surface of the transparent plate. Inspection mirror as described in any of 5 above. 7. The back plate according to claim 1, wherein the back plate is integrally continuous over both of the two end plate materials. Inspection mirror.