JP7682020B2 - Electronic Indicating Instrument - Google Patents

Description

This disclosure relates to an electronic indicating instrument used to monitor the status of a power system.

Conventionally, electronic indicating instruments are attached to panels by a worker who fits the electronic indicating instrument into the panel from the outside and temporarily fixes it, then goes inside the panel with the electronic indicating instrument temporarily fixed, and uses metal fittings to secure the electronic indicating instrument to the panel. Since the thickness of the panel varies depending on the panel to which the electronic indicating instrument is attached, the electronic indicating instrument is designed to conform to the panel of the panel by being fixed with metal fittings.

To save workers the trouble of going inside the panel to attach fittings to the equipment, Patent Document 1 proposes a technology that uses two mounting plates with spring action, and after inserting the equipment from the outside of the panel, fixes the equipment from the inside of the panel using the spring action of the mounting plates.

Japanese Utility Model Publication No. 51-043384

However, the device described in Patent Document 1 does not have a structure that can accommodate panels with different thicknesses, making it difficult to properly install on panels with different thicknesses.

The present disclosure has been made in consideration of the above, and aims to provide an electronic indicating instrument that can be attached to a panel without going inside the panel and can be adapted to panels of different thicknesses.

In order to solve the above-mentioned problems and achieve the object, the electronic indicating instrument of the present disclosure has a display section and a body section provided on the back surface of the display section, and is attached to a panel with the body section inserted into the interior of the panel through an opening formed in the panel of the panel, and includes a snap-fit section, a recess, and a leaf spring section. The snap-fit section has a first flexible column that bends by abutting against the edge of the opening when the body section is inserted into the opening and whose tip abuts against the panel from the interior of the panel when the body section is inserted into the opening. The recess is disposed at a position of the body that sandwiches the panel from the exterior and interior of the panel when the body section is inserted into the opening. The leaf spring section has a groove section provided on the back surface of the display section and a second flexible column that extends in a direction away from the groove section and can be accommodated in the groove section, and applies a load to the panel from the exterior of the panel by the second flexible column when the body section is inserted into the opening. The panel has a thickness that is less than the first thickness and greater than or equal to a second thickness that is thinner than the first thickness, the distance between the first flexible column and the rear surface of the display unit and the distance in the direction in which the body extends in the recess are the same as the first thickness, and the distance between the tip of the second flexible column and the edge of the groove is greater than or equal to the difference between the first thickness and the second thickness.

The present disclosure has the advantage that it can be attached to the board without going inside the board and can be adapted to panels of different thicknesses.

FIG. 1 is a perspective view showing an example of an electronic indicating instrument and a panel of a board according to a first embodiment; FIG. 1 is a side view showing an example of an electronic indicating instrument and a panel of a board according to a first embodiment; FIG. 1 is a front view showing an example of a panel of a board according to a first embodiment; FIG. 1 is a side view showing an example of a panel of a board according to a first embodiment; FIG. 1 is a side view of an electronic indicating instrument according to a first embodiment; FIG. 1 is a rear view of an electronic indicating instrument according to a first embodiment; FIG. 7 is a cross-sectional view taken along line VII-VII shown in FIG. FIG. 8 is a cross-sectional view taken along line VIII-VIII shown in FIG. FIG. 7 is a cross-sectional view taken along line IX-IX shown in FIG. 7 is a cross-sectional view taken along line X-X shown in FIG. FIG. 1 is a plan view showing a state before an electronic indicating instrument according to a first embodiment is attached to a panel; FIG. 12 is a cross-sectional view taken along line XII-XII shown in FIG. FIG. 1 is a plan view showing a state in which an electronic indicating instrument according to a first embodiment is being attached to a panel; FIG. 14 is a cross-sectional view taken along line XIV-XIV shown in FIG. FIG. 1 is a plan view showing a state in which an electronic indicating instrument according to a first embodiment is attached to a panel; FIG. 16 is a cross-sectional view taken along line XVI-XVI shown in FIG. An enlarged view of the X region shown in FIG. FIG. 1 is a front view showing a state in which an electronic indicating instrument according to a first embodiment is attached to a panel having a first thickness; FIG. 19 is a cross-sectional view taken along line XIX-XIX shown in FIG. FIG. 1 is a front view showing a state in which the electronic indicating instrument according to the first embodiment is attached to a panel having a second thickness; FIG. 21 is a cross-sectional view taken along line XXI-XXI shown in FIG. FIG. 1 is a diagram for explaining a function of a protrusion in an electronic indicating instrument according to a first embodiment. FIG. 1 is a rear view showing a state in which an electronic indicating instrument according to a first embodiment is attached to a panel having a first thickness; FIG. 24 is a cross-sectional view taken along line XXIV-XXIV shown in FIG. FIG. 1 is a rear view showing a state in which the electronic indicating instrument according to the first embodiment is attached to a panel having a second thickness; FIG. 26 is a cross-sectional view taken along line XXVI-XXVI shown in FIG. FIG. 1 is a plan view showing a state in which the electronic indicating instrument according to the first embodiment is being pulled out from a panel; FIG. 28 is a cross-sectional view taken along line XXVIII-XXVIII shown in FIG. FIG. 28 is a plan view showing a state in which the electronic indicating instrument according to the first embodiment is further pulled out from the panel from the state shown in FIG. 30 is a cross-sectional view taken along the line XXX-XXX shown in FIG.

The electronic indicating instrument according to the embodiment is described in detail below with reference to the drawings.

Embodiment 1.
Fig. 1 is a perspective view showing an example of an electronic indicating instrument and a panel of a board according to embodiment 1. Fig. 2 is a side view showing an example of an electronic indicating instrument and a panel of a board according to embodiment 1.

The electronic indicator 1 shown in FIG. 1 takes the voltage and current values in the power system as input, and displays the state of the power system based on the input. The state of the power system is, for example, the state of the voltage, current, or power of the power system.

As shown in FIG. 1, the electronic indicating instrument 1 is inserted into an opening 4a1 formed in a panel 4a of the board 4, such as a distribution board or switchboard, from outside the board 4. Then, as shown in FIG. 2, the electronic indicating instrument 1 is fitted into the panel 4a of the board 4 with a portion of it inserted inside the board 4, and is attached to the board 4.

Panel 4a of board 4 is a front panel provided on the front side of board 4, but may be a panel provided on a side other than the front side of board 4. Board 4 is formed, for example, in a box shape, but in the example shown in Figures 1 and 2, the components of board 4 other than panel 4a are omitted.

The electronic indicating instrument 1 comprises a body 2 and a display unit 3. The body 2 comprises a calculation device that calculates the state of the power system, such as the voltage, current, power, and power factor in the power system, and a cylindrical housing that houses the calculation device.

The display unit 3 includes a display device such as an LCD (Liquid Crystal Display) and a housing that houses the display device so that the display surface of the display device is visible from the outside, and displays the state of the power system calculated by the calculation device in the torso 2.

Figure 3 is a front view showing an example of a panel of a board according to the first embodiment, and Figure 4 is a side view showing an example of a panel of a board according to the first embodiment. As shown in Figure 3, the panel 4a of the board 4 has an opening 4a1 into which the body 2 of the electronic indicating instrument 1 is inserted, and a hole 4a2 into which a protrusion (described below) formed on the back surface of the display unit 3 of the electronic indicating instrument 1 is inserted.

Because the housing of the body 2 is cylindrical, the opening 4a1 is a circular opening, but it is sufficient that the shape matches the cross-sectional shape of the body 2, and the shapes of the body 2 and the opening 4a1 are not limited to the example shown in FIG. 1. The hole 4a2 is a circular hole, but it may be a hole of a shape other than a circular hole.

As shown in FIG. 4, the thickness of the panel 4a is in a range of less than the first thickness L and greater than the second thickness nL. The first thickness L is greater than the second thickness nL. For example, the first thickness L is 4.6 mm, and the second thickness nL is 1.6 mm.

Figure 5 is a side view of the electronic indicating instrument according to the first embodiment. Figure 6 is a rear view of the electronic indicating instrument according to the first embodiment. As shown in Figures 5 and 6, the electronic indicating instrument 1 includes a snap-fit portion 10, a recessed portion 20, a leaf spring portion 30, and a protruding portion 40.

The snap-fit portion 10 is disposed on the upper portion of the electronic indicating instrument 1. Specifically, the snap-fit portion 10 is provided on the upper portion of the body portion 2 of the electronic indicating instrument 1. The snap-fit portion 10 restricts the movement of the upper portion of the electronic indicating instrument 1 in the left-right direction in FIG. 2 when the electronic indicating instrument 1 is in the state shown in FIG. 2.

Figure 7 is a cross-sectional view taken along line VII-VII in Figure 6. As shown in Figure 7, the snap-fit portion 10 includes a flexible pillar 11, a groove 12, and a flat plate 13. The flexible pillar 11 and the groove 12 are formed on the outer periphery of the housing in the body 2, and the flat plate 13 is formed on the rear side of the housing in the display unit 3.

The flexible column 11 has its base end 11a supported by the housing body 2a of the torso 2, and its tip 11b is a free end. In the state shown in FIG. 7, it extends in a direction away from the groove portion 12 as it moves from the base end 11a to the tip 11b. The state shown in FIG. 7 is a state in which no external force is being applied to the flexible column 11.

The tip 11b of the flexible column 11 and the flat plate portion 13 face each other in the left-right direction in FIG. 7, and the distance D1 between the tip 11b of the flexible column 11 and the flat plate portion 13 is the same length as the first thickness L, for example, 4.6 mm. The left-right direction in FIG. 7 is the direction in which the body portion 2 of the electronic indicating instrument 1 is inserted into the opening 4a1.

Next, the recess 20 will be described. As shown in Figures 5 and 6, the recess 20 is disposed in the lower part of the electronic indicating instrument 1, and restricts the movement of the upper part of the electronic indicating instrument 1 in the left-right direction in Figure 2 when the electronic indicating instrument 1 is in the state shown in Figure 2. Figure 8 is a cross-sectional view taken along line VIII-VIII shown in Figure 6.

As shown in FIG. 8, the recess 20 is formed by a raised portion 21 formed on the body 2 of the electronic indicating instrument 1, the outer peripheral surface 22 of the body 2 of the electronic indicating instrument 1, and a flat portion 13 on the rear side of the display unit 3 of the electronic indicating instrument 1.

The raised portion 21 and the flat portion 13 face each other in the left-right direction in FIG. 8, and the distance D2 between the raised portion 21 and the flat portion 13 is the same length as the first thickness L, for example, 4.6 mm. The raised portion 21 also has a tapered surface 21a, a flat surface 21b, and an abutment surface 21c.

The tapered surface 21a is an inclined surface that rises downward as it approaches the abutment surface 21c. The flat surface 21b is formed between the tapered surface 21a and the abutment surface 21c. The abutment surface 21c is a surface parallel to the surface of the flat plate portion 13. The surface between the tapered surface 21a and the abutment surface 21c may be a tapered surface instead of the flat surface 21b.

Next, the leaf spring section 30 will be described. As shown in FIG. 6, the leaf spring section 30 is disposed at the top and bottom of the electronic indicating instrument 1. Specifically, the leaf spring section 30 is disposed at the top left and bottom right of the rear side of the display section 3 of the electronic indicating instrument 1. Each leaf spring section 30 applies a load to the panel 4a from outside the board 4 in order to adapt to boards 4 with different thicknesses of the panel 4a. FIG. 9 is a cross-sectional view taken along line IX-IX shown in FIG. 6.

As shown in FIG. 9, the leaf spring portion 30 includes a flexible pillar 31 and a groove portion 32. The flexible pillar 31 has a base end 31a supported by the housing body 3a of the display unit 3 and a tip end 31b which is a free end, and in the state shown in FIG. 9, it extends in a direction away from the groove portion 32 as it moves from the base end 31a to the tip end 31b. The state shown in FIG. 9 is a state in which the leaf spring portion 30 is not in contact with the panel 4a.

The distance D3 between the tip 31b of the flexible column 31 and the groove 32 is equal to or greater than the first thickness L minus the second thickness nL, and is, for example, equal to or greater than 3.0 mm. In the state shown in FIG. 2 in which the electronic indicating instrument 1 is attached to the board 4, the flexible column 31 bends in the direction toward the groove 32 and abuts against the panel 4a from outside the board 4, applying a load to the panel 4a from outside the board 4.

Next, the protrusions 40 will be described. As shown in FIG. 6, the protrusions 40 are disposed on both the top and bottom of the electronic indicating instrument 1. Specifically, the protrusions 40 are disposed on the top right and bottom left of the back side of the display unit 3 of the electronic indicating instrument 1, and regulate the rotation of the electronic indicating instrument 1 around the central axis O of the body 2.

The central axis O of the body 2 is the cylindrical axis of the cylindrical housing of the body 2, and is an axis extending in the direction along the insertion direction of the electronic indicating instrument 1 into the opening 4a1 of the panel 4. Figure 10 is a cross-sectional view taken along line X-X shown in Figure 6.

As shown in FIG. 10, the protrusion 40 protrudes from the flat plate portion 13 on the rear side of the display unit 3 of the electronic indicating instrument 1. The length L1 of the protrusion 40 is the same as the first thickness L, and is, for example, 4.6 mm.

The protrusion 40 is inserted into the hole 4a2 of the panel 4a from outside the board 4 when the body 2 is inserted into the opening 4a1 of the panel 4a. By inserting the protrusion 40 into the hole 4a2, rotation of the electronic indicating instrument 1 around the central axis O of the body 2 is restricted. In the example shown in FIG. 6, the protrusion 40 is a cylindrical protrusion, but the shape of the protrusion 40 is not limited to a cylindrical shape and may be any shape that matches the shape of the hole 4a2.

The mounting operation of the electronic indicating instrument 1 configured as above is described below, in which the body 2 of the electronic indicating instrument 1 is inserted from outside the panel 4 into the panel 4 to mount the electronic indicating instrument 1 on the panel 4. FIG. 11 is a plan view showing the state before the electronic indicating instrument according to the first embodiment is mounted on the panel. FIG. 12 is a cross-sectional view taken along line XII-XII shown in FIG. 11. FIG. 13 is a plan view showing the state in which the electronic indicating instrument according to the first embodiment is in the process of being mounted on the panel. FIG. 14 is a cross-sectional view taken along line XIV-XIV shown in FIG. 13. FIG. 15 is a plan view showing the state in which the electronic indicating instrument according to the first embodiment is mounted on the panel. FIG. 16 is a cross-sectional view taken along line XVI-XVI shown in FIG. 15. FIG. 17 is an enlarged view of the X region shown in FIG. 16.

As shown in Figures 11 and 12, when attaching the electronic indicating instrument 1 to the panel 4, the body 2 of the electronic indicating instrument 1 is placed in a position facing the opening 4a1 formed in the panel 4a of the panel 4, and the body 2 of the electronic indicating instrument 1 is inserted into the opening 4a1.

As shown in Figures 13 and 14, when the body 2 of the electronic indicating instrument 1 is inserted into the opening 4a1, the flexible column 11 in the snap-fit portion 10 of the electronic indicating instrument 1 comes into contact with the edge 4a11 of the opening 4a1 and bends, causing the flexible column 11 to bend. As the flexible column 11 bends, a part or the whole of the flexible column 11 fits into the groove portion 12, and the body 2 can be inserted further into the interior of the panel 4.

When the body 2 of the electronic indicating instrument 1 is further inserted into the opening 4a1, the tapered surface 21a of the raised portion 21 abuts against the edge 4a11 of the opening 4a1, causing the electronic indicating instrument 1 to tilt obliquely relative to the front-to-rear direction. Then, when the body 2 of the electronic indicating instrument 1 is further inserted into the opening 4a1, as shown in FIG. 14, the flat surface 21b of the raised portion 21 abuts against the edge 4a11 of the opening 4a1 with the electronic indicating instrument 1 tilted obliquely relative to the front-to-rear direction.

When the body 2 of the electronic indicating instrument 1 is further inserted into the opening 4a1 from the state shown in Figs. 13 and 14, the recess 20 reaches a position where it sandwiches the panel 4a from both the outside and the inside of the board 4, as shown in Fig. 16. At this time, a load is applied to the panel 4a of the board 4 by the leaf spring portion 30 in a direction from the outside of the board 4 toward the inside of the board 4. Therefore, even if the thickness of the panel 4a is the second thickness nL, the abutment surface 21c of the recess 20 abuts the panel 4a of the board 4 from the inside of the board 4, and movement of the lower part of the electronic indicating instrument 1 in the left-right direction in Fig. 16 is restricted.

In addition, since the flexible column 11 passes through a position facing the edge 4a11 of the opening 4a1 in the vertical direction, the contact of the flexible column 11 with the edge 4a11 of the opening 4a1 is released, and the deflection of the flexible column 11 is released, as shown in Figures 16 and 17. At this time, a load is applied to the panel 4a of the board 4 by the leaf spring portion 30 in a direction from the outside of the board 4 to the inside of the board 4. Therefore, even if the thickness of the panel 4a is the second thickness nL, the tip 11b of the flexible column 11 contacts the panel 4a of the board 4 from the inside of the board 4, and the movement of the upper part of the electronic indicating instrument 1 in the left-right direction in Figures 16 and 17 is restricted.

In this way, in the electronic indicating instrument 1, the flexible column 11 and recess 20 of the snap-fit portion 10 restrict the left-right movement of the electronic indicating instrument 1 in FIG. 16. In addition, since the leaf spring portion 30 applies a load to the electronic indicating instrument 1 in the direction from the outside of the board 4 to the inside of the board 4, the electronic indicating instrument 1 can be appropriately attached to boards 4 with panels 4a of different thicknesses.

The functions of the leaf spring portion 30 and the protruding portion 40 will be described in more detail below. FIG. 18 is a front view showing the electronic indicating instrument according to the first embodiment attached to a panel having a first thickness. FIG. 19 is a cross-sectional view taken along line XIX-XIX shown in FIG. 18. FIG. 20 is a front view showing the electronic indicating instrument according to the first embodiment attached to a panel having a second thickness. FIG. 21 is a cross-sectional view taken along line XXI-XXI shown in FIG. 20. FIG. 22 is a diagram for explaining the function of the protruding portion in the electronic indicating instrument according to the first embodiment. FIG. 23 is a rear view showing the electronic indicating instrument according to the first embodiment attached to a panel having a first thickness. FIG. 24 is a cross-sectional view taken along line XXIV-XXIV shown in FIG. 23. FIG. 25 is a rear view showing the electronic indicating instrument according to the first embodiment attached to a panel having a second thickness. FIG. 26 is a cross-sectional view taken along line XXVI-XXVI shown in FIG. 25.

As shown in FIG. 19, when the electronic indicating instrument 1 is attached to a panel 4a having a first thickness L, a load is applied to the panel 4a by the flexible column 31 of the leaf spring section 30 in a direction from the outside of the panel 4 toward the inside of the panel 4. In the state shown in FIG. 19, the flexible column 31 of the leaf spring section 30 is in a position where the entirety of the flexible column 31 is contained within the groove section 32.

As shown in FIG. 21, when the electronic indicating instrument 1 is attached to the panel 4a having the second thickness nL, a load is applied to the panel 4a by the flexible column 31 of the leaf spring portion 30 in a direction from the outside of the panel 4 toward the inside of the panel 4. In the state shown in FIG. 21, the flexible column 31 of the leaf spring portion 30 is in a position where a part of it protrudes from the groove portion 32.

In this way, in the electronic indicating instrument 1, a load is applied to the panel 4a by the leaf spring portion 30 in a direction from the outside of the board 4 toward the inside of the board 4. Therefore, as shown in Figures 24 and 26, the panel 4a is pressed against the tip 11b of the flexible column 11 in the snap-fit portion 10 by the force of the leaf spring portion 30.

As shown in FIG. 24, when the electronic indicating instrument 1 is attached to a panel 4a having a first thickness L, the protrusion 40 is inserted into the hole 4a2, and the flat plate portion 13 on the back side of the display unit 3 abuts against the panel 4a from outside the board 4. As a result, as shown in FIG. 22, the rotation of the electronic indicating instrument 1 around the central axis O of the body 2 is restricted.

In addition, since the length of the protrusion 40 is the same as the first thickness L, as shown in FIG. 26, when the electronic indicating instrument 1 is attached to a panel 4a having a second thickness nL, a portion of the protrusion 40 is inserted into the hole 4a2 of the panel 4a. Therefore, even when the electronic indicating instrument 1 is attached to a panel 4a having a second thickness nL, rotation of the electronic indicating instrument 1 around the central axis O of the body 2 is restricted.

In this way, in the electronic indicating instrument 1, the engagement between the protrusion 40 and the hole 4a2 can restrict the rotation of the body 2 around the central axis O for the board 4 having a thickness within the range from the first thickness L to the second thickness nL.

In addition, if the length of the protrusion 40 is too long compared to the first thickness L, it becomes difficult to insert the electronic indicating instrument 1 at an angle into the opening 4a1 of the panel 4, but in the electronic indicating instrument 1, the length of the protrusion 40 is the same as the first thickness L. Therefore, in the electronic indicating instrument 1, the body 2 of the electronic indicating instrument 1 can be inserted at an angle into the opening 4a1 of the panel 4 while ensuring sufficient engagement of the protrusion 40 with the hole 4a2.

Next, the operation of removing the electronic indicating instrument 1 attached to the panel 4 from the panel 4 will be described. Figure 27 is a plan view showing the state in which the electronic indicating instrument according to the first embodiment is in the middle of being pulled out from the panel. Figure 28 is a cross-sectional view taken along line XXVIII-XXVIII shown in Figure 27. Figure 29 is a plan view showing the state in which the electronic indicating instrument according to the first embodiment is further pulled out from the panel from the state shown in Figure 27. Figure 30 is a cross-sectional view taken along line XXX-XXX shown in Figure 29.

When the electronic indicating instrument 1 attached to the panel 4 is to be removed from the panel 4, the flexible column 11 of the snap fit portion 10 is bent and the flexible column 11 is stored in the groove portion 12 as shown in FIG. 28. Also, in order to prevent the recess 20 from interfering with the panel 4, the recess 20 is pulled out from the position where the panel 4a is sandwiched to the outside of the panel 4, and the electronic indicating instrument 1 can be removed from the panel 4 by pulling it out at an angle to the outside of the panel 4 as shown in FIG. 30.

When the thickness of panel 4a of board 4 is thinner than first thickness L, a gap is created between flat plate portion 13 located on the rear side of display unit 3 in electronic indicating instrument 1 and panel 4a of board 4. Such a gap can be filled by sandwiching a rubber packing (not shown) between flat plate portion 13 and board 4. In this case, the gap can be appropriately filled between flat plate portion 13 and board 4 by using, for example, a rubber packing in which a hole with a diameter equal to opening 4a1 and a hole with a diameter equal to hole 4a2 are formed by drilling as the rubber packing for filling the gap.

In the above example, the snap fit portion 10 is disposed at the top of the electronic indicating instrument 1, and the recess 20 is disposed at the bottom of the electronic indicating instrument 1, but the positions of the snap fit portion 10 and the recess 20 are not limited to the above example. For example, the snap fit portion 10 may be disposed at one side of the left and right direction of the electronic indicating instrument 1, and the recess 20 may be disposed at the other side of the left and right direction of the electronic indicating instrument 1. Also, the snap fit portion 10 may be disposed at the bottom of the electronic indicating instrument 1, and the recess 20 may be disposed at the top of the electronic indicating instrument 1.

In addition, in the above-mentioned example, the leaf spring portion 30 and the protrusion portion 40 are arranged at the upper and lower parts of the electronic indicating instrument 1, but the arrangement and number of the leaf spring portion 30 and the protrusion portion 40 are not limited to the above-mentioned example. For example, the leaf spring portion 30 and the protrusion portion 40 may be arranged at the left and right parts of the electronic indicating instrument 1, or may be arranged at the upper, lower, left, and right parts of the electronic indicating instrument 1.

As described above, the electronic indicating instrument 1 according to the first embodiment is an electronic indicating instrument that is attached to the board 4 with a part of it inserted into the board 4 through the opening 4a1 formed in the panel 4a of the board 4, and includes a snap-fit portion 10, a recess 20, and a leaf spring portion 30. The snap-fit portion 10 has a flexible column 11 that bends by contacting the edge 4a11 of the opening 4a1 when a part of the electronic indicating instrument 1 is inserted into the opening 4a1, and has a tip 11b that abuts against the panel 4a from inside the board 4 with a part of it inserted into the opening 4a1. The recess 20 is disposed in a position that sandwiches the panel 4a from the outside and inside of the board 4 with a part of it inserted into the opening 4a1. The leaf spring portion 30 applies a load to the panel 4a from the outside of the board 4 with a part of it inserted into the opening 4a1. This allows the electronic indicating instrument 1 to be attached to the board 4 without wrapping around into the inside of the board 4, and to adapt to panels 4a of different thicknesses.

The snap-fit portion 10 is disposed on one of the upper and lower portions of the electronic indicating instrument 1. The recess 20 is disposed on the other of the upper and lower portions of the electronic indicating instrument 1. This allows the electronic indicating instrument 1 to be inserted at an angle to the front-to-rear direction when a portion of the electronic indicating instrument 1 is inserted into the panel 4, making it easy to attach the electronic indicating instrument 1 to the panel 4.

The leaf spring portions 30 are also arranged at the top and bottom of the electronic indicating instrument 1. This allows the electronic indicating instrument 1 to adapt precisely to panels 4a of different thicknesses.

The electronic indicating instrument 1 also includes a protrusion 40. The protrusion 40 is inserted into the hole 4a2 of the board 4 from outside the board 4 when a portion of the protrusion 40 is inserted into the opening 4a1. This allows the electronic indicating instrument 1 to restrict rotation around the central axis O.

The protrusions 40 are also arranged at the top and bottom of the electronic indicating instrument 1. This allows the electronic indicating instrument 1 to precisely regulate its rotation around the central axis O.

The configurations shown in the above embodiments are merely examples, and may be combined with other known technologies. Parts of the configurations may be omitted or modified without departing from the spirit of the invention.

1 Electronic indicator, 2 Body, 2a, 3a Housing body, 3 Display, 4 Board, 4a Panel, 4a1 Opening, 4a11 Edge, 4a2 Hole, 10 Snap fit, 11, 31 Flexible column, 11a, 31a Base end, 11b, 31b Tip, 12, 32 Groove, 13 Flat plate, 20 Recess, 21 Raised portion, 21a Tapered surface, 21b Flat surface, 21c Contact surface, 22 Outer periphery, 30 Leaf spring, 40 Protruding portion, D1, D2, D3 Distance, L First thickness, L1 Length, nL Second thickness, O Central axis.

Claims (5)

An electronic indicating instrument having a display unit and a body portion provided on a rear surface of the display unit, the body portion being inserted into the interior of the panel through an opening formed in a panel of the panel, the electronic indicating instrument being attached to the panel,
a snap-fit portion having a first flexible column that bends by contacting an edge of the opening when the body portion is inserted into the opening and has a tip that abuts against the panel from inside the board in a state in which the body portion is inserted into the opening;
a recessed portion disposed at a position of the body portion that sandwiches the panel from the outside and the inside of the board when the body portion is inserted into the opening;
a leaf spring portion having a groove portion provided on a rear surface of the display portion, and a second flexible column extending in a direction away from the groove portion and capable of being housed in the groove portion, the leaf spring portion applying a load to the panel from outside the board by the second flexible column when the body portion is inserted into the opening portion,
the panel has a thickness that is less than or equal to a first thickness and greater than or equal to a second thickness that is less than the first thickness;
a distance between the first flexible pillar and a rear surface of the display unit and a distance in a direction in which the body portion extends in the recess are equal to a first thickness;
an electronic indicating instrument, wherein a distance between a tip of the second flexible post and an edge of the groove is equal to or greater than a difference between the first thickness and the second thickness. The snap fit portion is
Located at one of the upper and lower parts of the body of the electronic indicating instrument;
The recessed portion is
2. The electronic indicating instrument according to claim 1, wherein the electronic indicating instrument is disposed on the other of the upper and lower parts of the body of the electronic indicating instrument. The leaf spring portion is
3. The electronic indicating instrument according to claim 1, wherein the first and second electrodes are disposed above and below the display unit of the electronic indicating instrument. a protrusion that is inserted from the outside of the board into a hole in the board when the body is inserted into the opening,
4. The electronic indicating instrument according to claim 1, wherein the length of the protrusion is the same as the first thickness. The protrusion is
The electronic indicating instrument according to claim 4, characterized in that the electronic indicating instrument is provided at an upper part and a lower part.

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