JP3022224U - Light-shielding plate for meter reading device - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To prevent the inconvenience that it is difficult to read the scale due to sunlight when the meter is read by using the meter reading device in which a mirror is provided at the tip of the telescopic rod. . SOLUTION: A plurality of cylindrical members 51A, 51, ..., 51
This is applied to the meter-reading device 4 in which the mirror 7 is provided at the tip of the telescopic rod 5 in which B is telescopically inserted, and is a plate-shaped light-shielding member 2 that is sufficiently larger than the mirror 7, and this light-shielding member 2 The joint member 3 has a rear surface fixed to the center in the width direction thereof, is detachably held by the mirror 7, and has an opening 34 formed on the front surface for exposing the surface of the mirror 7.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a light-shielding plate for a meter-reading device, which is installed and used in a meter-reading device used during a meter-reading operation of a meter-reading meter for electricity, gas, water, etc. installed in a relatively high place.

[0002]

[Prior art]

 Houses, shops, etc. are equipped with various meter-reading meters that indicate the amount of electricity, gas, water, etc. used, and workers dispatched from these suppliers regularly perform meter-reading. If it is installed at a relatively high place, it is inconvenient to read the meter. Therefore, as shown in FIG. 5, meter reading is performed using a meter reading device in which a mirror is provided at the tip of a telescopic rod that can expand and contract in multiple stages. As shown in FIG. 6, the meter-reading operation using this meter-reading device is performed by displaying the scale and numerical values of the meter-reading meter on a mirror provided at the tip.

[0003]

[Problems to be solved by the device]

 However, since the meter-reading meter is installed outdoors at a relatively high place, the glass surface of the meter-reading meter may be exposed to sunlight and the light may be reflected, making it difficult to read the scale and numerical values. In particular, recently, the display of the meter reading meter has sometimes been digital display by liquid crystal, and in this case, it was more difficult to read. This invention was made in order to solve these problems.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the light-shielding plate for a meter-reading device of the present invention is applied to a meter-reading device in which a mirror is provided at the tip of an expandable rod in which a plurality of tubular members are telescopically fitted. A plate-like light-shielding member that is sufficiently larger than the mirror, and a back surface fixed to the widthwise central portion of the light-shielding member, detachably held by the mirror, and an opening for exposing the surface of the mirror is formed in the front surface. And a joint member formed of Preferably, in addition to the above configuration, the joint member has an upper side wall that abuts on an upper end surface of the mirror, and an interval between the left and right ends of the upper side wall that is slightly larger than a width dimension of the mirror in the left-right direction. The left and right side walls formed to extend vertically downward with respect to the upper side wall, the front side wall formed to extend radially inward on the front side of the upper side wall and the left and right side walls, and the front side wall It is a light-shielding plate for a meter-reading device, characterized in that it is integrally formed with a rear side wall which is formed on the back side by a distance corresponding to the plate thickness of the mirror. More preferably, the light-shielding member has a lateral width of 3.5 to 4. It is a light-shielding plate for a meter-reading device, characterized in that it is a rectangular plate having a size of 5 times and a height 1.5 to 2.5 times that of the mirror.

[0005]

[Embodiment of device]

 Hereinafter, the light shielding plate 1 for a meter reading device of the present invention will be described in more detail. FIG. 1 is a perspective view showing a light-shielding plate 1 for a meter reading device of the present invention and a meter-reading device 4 to which the light-shielding plate 1 is attached. As shown in FIG. 5, for example, a meter reading device 4 to which the light shielding plate 1 for a meter reading device of the present invention is applied is provided with a mirror 7 at the tip of an expandable rod 5 via a joint member 6. . The expandable rod 5 is formed by inserting a plurality of cylindrical members 51A, 51, ..., 51B into each other, and can change the length to a desired length according to the length of use. Further, the tubular members 51 are fitted and inserted so as to be rotatable in the circumferential direction. The tubular member 51B having the largest diameter on the most proximal end side that configures the telescopic rod 5 functions as a grip portion. A joint member 6 is attached to the tip of the tubular member 51A having the smallest diameter on the most tip side, that is, the tip of the expandable rod 5.

The joint member 6 holds the mirror 7 on the telescopic rod 5 so that the mirror 7 can swing. Specifically, a ball joint is used. The joint member 6 includes a joint member main body 61 having two ball holding portions 61a and 61b, and two swinging members 62 formed with ball portions 62a and 63a held by the ball holding portions 61a and 61b. And 63. The base-side swing member 63 held by the lower ball holding portion 61b is formed by integrally molding a spherical ball portion 63a at the tip of a shaft-shaped swing arm 63b. Further, the tip end side swinging member 62 held by the upper ball holding portion 61a is formed by integrally forming a spherical ball portion 62a on the base end portion of the shaft-like swinging arm 62b, and the tip end portion is It is formed in a plate shape and serves as an attachment portion 62c for the mirror 7. The ball portions 62a, 63a of the swing members 62, 63 are held by the ball holding portions 61a, 61b of the joint member body 61, whereby the swing arms 62b, 63b are moved to the ball portions 62a. , 63a as a center, and can swing with respect to the joint member main body 61. The base end side swinging member 63 has the base end portion of the swinging arm 63b fitted and fixed to the tip end of the telescopic rod 5 (the tip end of the cylindrical member 51A having the minimum diameter dimension). The mirror 7 provided on the mounting portion 62c of the tip-side swinging member 62 is made of a rectangular plate having a front surface 71 formed into a mirror surface, and is housed in a frame to prevent damage, and then the rear surface 72 has a central portion in the width direction. The attachment portion 62c is fixed to the.

As shown in FIG. 1, the light-shielding plate 1 for a meter-reading device of the present invention applied to the meter-reading device 4 having such a structure has a plate-shaped light-shielding member 2 and a joint member to the mirror 7 of the meter-reading device 4. 3 is fixed. 2A and 2B are views showing the light shielding member 2 of the light shielding plate 1 for a meter reading device of this embodiment, where FIG. 2A is a front view, FIG. 2B is a right side view, and FIG. The light blocking member 2 is formed of a material that blocks light or a non-translucent material that hardly transmits light. In this embodiment, the light blocking member 2 is made of a rectangular black acrylic plate.

3A and 3B are views showing the joint member 3 of the light shielding plate 1 for the meter-reading device of this embodiment, where FIG. 3A is a front view, FIG. 3B is a right side view, and FIG. D) is a rear view. The joint member 3 is made of ABS resin, and is integrally formed in a substantially U-shape that opens downward as a whole so as to cover the periphery of the mirror 7. In other words, the joint member 3 includes an upper side wall 31 that comes into contact with the upper end surface of the mirror 7 when used, and the upper and lower end portions of the upper side wall 31 at intervals slightly larger than the width dimension of the mirror 7 in the horizontal direction. The left and right side walls 32, 32 are formed to extend vertically downward with respect to the side wall 31, and are formed in a substantially U shape. A front side wall 33 extending radially inward is formed on the front side of the upper side wall 31 and the left and right side walls 32, and a rectangular opening 34 slightly smaller than the mirror 7 is formed in the center of the front side wall 33. Has been formed. Further, a rear side wall 35 is formed so as to be spaced from the front side wall 33 to the rear side by the plate thickness of the mirror 7 and extend radially inward from the upper portions of the upper side wall 31 and the left and right side walls 32. As a result, a mounting groove having a size substantially equal to the size of the mirror 7 is formed on the inner side in the radial direction of each of the side walls 31, 32, 33, 35 by opening downward. Further, the rear surface of the rear side wall 35 is formed on the same plane as the rear surfaces of the upper side wall 31 and the left and right side walls 32, and the thickness in the front-rear direction is the joint member 6 for connecting the mirror 7 to the telescopic rod 5. The thickness of the mounting portion 62c is substantially the same as that of the mounting portion 62c. The joint member 3 is provided below the central portion in the width direction of the light shielding member 2, as shown by the chain double-dashed line in FIG. To this end, the back surface of the joint member 3 is fixed to the surface of the light shielding member 2 with an adhesive, or the screw holes 36, 36 formed at the upper corners of the joint member 3 shown in FIG. Alternatively, the light blocking member 2 may be fixed to the back side of the light blocking member 2 via the light blocking member 2 and fixedly mounted.

Next, a usage state of the light-shielding plate 1 for the meter-reading device of the present invention will be described. The light-shielding plate 1 for a meter-reading device of the present invention is used by being attached to a mirror 7 of a meter-reading device 4, as shown in FIG. To attach the mirror 7 to the mirror 7, simply insert the mirror 7 into the joint member 3 from below the joint member 3 so that the surface (mirror surface) of the mirror 7 is located in the front opening 34 of the joint member 3. Good. FIG. 4 is a cross-sectional view showing a state in which the mirror 7 is attached to the light shielding plate 1 for the meter reading device. As shown in this figure, when the mirror 7 is inserted into the joint member 3, the mirror 7 and the mounting portion 62c are sandwiched between the front side wall 33 and the light shielding member 2, and the upper portion of the mirror 7 is located on the front side wall 33. Since the mirror 7 is sandwiched between the upper side wall 31 and the left and right side walls 32, and the upper end surface of the mirror 7 abuts on the upper side wall 31, The device shading plate 1 is stably held by the mirror 7. Since the surface (mirror surface) of the mirror 7 is exposed from the opening 34 of the joint member 3 when the light-shielding plate 1 for the meter-reading device is attached to the mirror 7, the exposed meter 7 is directed toward the meter-reading meter 8. It is possible to perform a meter reading operation by displaying a scale or a numerical value on the mirror 7 toward the.

The state during the meter reading work is shown in FIG. 6. In this figure, even when the operator 9 is exposed to sunlight, by providing the light shielding plate 1 on the rear surface of the mirror 7, the meter reading meter 8 is protected from light. There is no inconvenience that the contact meter is prevented from hitting and the scale of the meter reading meter 8 is hard to see due to the reflected light. Therefore, the meter reading work can be performed easily and accurately. Moreover, in the case of the above-mentioned embodiment, since the light shielding member 2 is formed of an acrylic plate, there is an advantage that it is lightweight and inexpensive. Since the shading plate 1 is inserted into and held by the mirror 7, it is easy to attach and detach, and the shading plate 1 can be removed from the mirror 7 when carrying the device. Further, it is convenient to carry the cord when the cord is passed through the through hole 21 formed at the upper corner in FIG. In addition, the shading plate 1 can be used as an underlay for writing when not in use, and is convenient for writing the scale of the meter reading meter.

In the above embodiment, the light blocking member 2 of the light blocking plate 1 for the meter reading device has a lateral width of about 3.5 to 4.5 times the lateral width of the mirror 7, and a height (vertical) of the mirror 7. It is preferable that the size is about 1.5 to 2.5 times. This is because if the light-shielding member 2 is too large, it is inconvenient to carry, and if it is too small, there is a disadvantage that sufficient light cannot be shielded. For example, when applied to a metering device that has a telescopic rod with a maximum stretchable dimension of 1100 mm and a storage dimension of 210 mm and a mirror with a width of 50 mm and a height of 40 mm, the size of the light blocking member is 200 mm in width and a height of 200 mm. It is preferable to use a joint member having a size of 95 mm and a joint member having a width of 60 mm and a height of 45 mm. The light-shielding plate 1 for a meter-reading device of the present invention is not limited to the configuration of the above-mentioned embodiment, and can be changed as appropriate. For example, the shape of the light shielding member 2 is not limited to a rectangle, but may be a circle or the like, and its material and color can be changed as appropriate. Also, the configuration of the joint member 3 is appropriately changed depending on the shape and size of the mirror 7 of the meter reading device 4.

[0012]

[Effect of device]

 As described in detail above, if the light-shielding plate for the meter-reading device of the present invention is used by mounting it on the meter-reading device, it is possible to prevent the meter-reading meter from being exposed to light by the light-shielding member, making it easy to read the scale and numerical values, and to perform the meter-reading work. It can be done easily and accurately.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which an embodiment of a light shielding plate for a meter reading device of the present invention is attached to a meter reading device.

2A and 2B are diagrams showing a light blocking member of the light blocking plate for the meter reading device of FIG. 1, in which FIG. 2A is a front view, FIG. 2B is a right side view, and FIG.

3A and 3B are views showing a joint member of the light-shielding plate for the meter-reading device of FIG. 1, in which FIG. 3A is a front view and FIG. 3B is a right side view;
(C) is a bottom view and (D) is a rear view.

FIG. 4 is a vertical cross-sectional view showing a state in which the light shielding plate for a meter reading device of FIG. 1 is attached to the meter reading device.

FIG. 5 is a perspective view showing a meter reading device, showing a state in which a mirror is directed downward.

FIG. 6 is a side view showing a meter reading work state using the meter reading device.

[Explanation of symbols]

 1 Light-shielding plate for meter-reading device 2 Light-shielding member 3 Joint member 4 Meter-reading device 5 Expansion rod 6 Joint member 7 Mirror 8 Meter-reading meter 31 Upper side wall 32 Left and right side walls 33 Front side wall 34 Opening 35 Rear side wall 51 Cylindrical member 51A Minimum diameter dimension Cylindrical member 51B Maximum diameter cylinder member 62c Mounting part

Claims (3)

[Scope of utility model registration request] 1. A plate-shaped light-shielding member, which is applied to a meter reading device in which a mirror is provided at the tip of an expandable rod in which a plurality of tubular members are telescopically fitted, and which is sufficiently larger than the mirror. A back surface is fixed to a central portion of the light shielding member in the width direction, the joint member is detachably held by the mirror and has an opening formed on the front surface for exposing the surface of the mirror. Light-shielding plate for meter reading devices. 2. The joint member includes an upper side wall abutting against an upper end surface of the mirror, and left and right end portions of the upper side wall with a space slightly larger than a width dimension of the mirror in the left-right direction. On the other hand, the left and right side walls are formed to extend vertically downward, the front side wall formed to extend radially inward on the front side of the upper side wall and the left and right side walls, and the plate thickness of the mirror from the front side wall. The light-shielding plate for the meter-reading device according to claim 1, wherein the rear side wall is formed integrally with the rear side wall so as to be spaced apart from the back side. 3. The light shielding member has a lateral width of 3.5 to 4.5 times the lateral width of the mirror and a height of 1.5 to 2.
The light-shielding plate for a meter-reading device according to claim 2, wherein the light-shielding plate is a rectangular plate having a size five times as large as that of the light-shielding plate.