JP4814828B2 - Display device - Google Patents

Description

  The present invention relates to a display device that is incorporated in a panel such as a distribution board and displays, for example, a measured value such as an electric energy or time.

  In a conventional display device for a panel, the mounting direction of the display device body is determined corresponding to the power supply circuit and load circuit of the panel. Therefore, in the display device, it is known that the display unit for displaying the measured value or time can be rotated in an easy-to-see direction corresponding to the mounting direction of the display device body. However, an outer box of this type of display unit is usually formed in a substantially square shape, and there is a configuration in which a setting unit for setting, for example, the number of pulses for measurement is formed adjacent to the display unit. In the display device having such a configuration, since the setting unit is adjacent to the display unit, the substantially square display unit cannot rotate. Therefore, when rotating the display unit, the display unit stopper is released, the display unit is slid in the horizontal direction when viewed from the front, and the display unit is rotated while the display unit is separated from the setting unit. It was made to rotate by a moving mechanism. (For example, refer to Patent Document 1).

JP 2003-315363 A

  The conventional display device configured as described above has a stopper release recessed portion that holds the display unit and the display unit fixed when the measurement value or time displayed on the display unit is changed to a desired display direction. Since the fitting with the projection is released and the display unit is slid in the horizontal direction when viewed from the front, the display unit is rotated. There was a problem that the operation was complicated because of the change.

  The present invention has been made to solve such problems. When the display unit is changed to a desired direction, the display unit can be rotated in a direction that is easy to see according to the mounting direction of the display device body by a simple operation. The purpose is to obtain a dynamic holding mechanism.

In order to achieve the above object, the present invention provides a main body base portion having a terminal device for connecting a power supply circuit and a load circuit on the outer surface, a main body cover portion having a display portion mounting surface formed on the front surface, and the main body. It is mounted on the display unit mounting surface of the main body unit composed of the base unit and the main body cover unit, and displays the measurement value or time, and rotates to a predetermined rotation position corresponding to the mounting direction of the main body unit. In a display device including a display unit made possible, a through hole that penetrates through a substantially central portion of the display unit mounting surface of the main body cover unit , and a through hole that is provided in the back surface of the display unit. The formed protrusion for mounting and at least a pair of elastic pressing pieces, and the press contact member fitted to the protrusion for mounting on the back side of the display portion mounting surface, and the display portion can be rotated. To the above projection for mounting And anchored rotary ring, be between the back and the display unit mounting surface of the display unit, together with the fitted together, the display unit is pressed on the display unit mounting surface by the elastic force of the elastic pressing piece above A holding stopper that holds the display unit in a predetermined rotational position is provided.

In the case where the outer box of the display unit is formed in a substantially square shape, and the main body cover unit has a front surface part (setting unit) having an adjacent wall surface adjacent to the outer box of the display unit , the display of the main body cover unit A rail extending in a direction perpendicular to the adjacent wall surface is formed on the back surface of the mounting surface, and an engagement slide portion that engages with the rail is provided on the press contact, and when the display portion is rotated, a holding stopper is provided. When the fitting is dissociated and the corner portion of the outer box is in sliding contact with the adjacent wall surface and the display portion slides along the rail and is in a predetermined rotation position, the rail is passed through the rail. The display unit is returned to a state adjacent to the adjacent wall surface, and the holding stopper is fitted in the returned state.

  As described above, the display device of the present invention is provided with the holding stopper which is between the back surface of the display unit and the display unit mounting surface and which fits each other and holds the display unit in a predetermined rotational position. Accordingly, since the operation of rotating the display unit after releasing the stopper holding the display unit as in the conventional device is omitted, the display unit can be rotated to a desired position by a simple operation. Can be retained.

  Even if the setting unit (front surface) is provided adjacent to the display unit, the display unit automatically slides away from the setting unit (front surface) when the display unit is rotated. Therefore, the display unit can be rotated and held at a desired position by a simple operation as described above.

Embodiment 1 FIG.
FIG. 1 is an external perspective view showing a display device according to Embodiment 1 of the present invention. The display device 1 includes a power supply circuit that supplies power and a terminal device (not shown) connected to a load circuit (not shown). A main body base portion 2 to be provided, a main body cover portion 3 fitted to the main body base portion 2, a pressure contactor 8 and a rotating ring, which will be described later, housed in the main body base portion 2 and the main body cover portion 3. 10 and the like, and a display unit 5 that is attached to the main body cover unit 3 and is formed in a substantially square shape and is rotatable to a rotation position of a predetermined angle to display a measurement value or time. And a setting unit 6 on the front surface of the main body cover unit 3 and adjacent to the display unit 5 for setting specific data of the display device such as the form of output pulses of electric energy and the composite transformation ratio. Yes. In addition, the box-shaped part of the main body base part 2, the main body cover part 3, and the display part 5 is formed of a thermoplastic resin material. The display unit 5 displays a measured value such as an electric energy using an LCD (liquid crystal display element). The display unit 5 and the setting unit 6 are provided close to each other in order to reduce the external dimensions.

  2 is an exploded perspective view of FIG. 1, FIG. 3 is an enlarged perspective view of the display unit 5, the press contact 8 and the rotating ring 10 constituting the display device of FIG. 1, and FIG. 4 is an inner surface of the main body cover unit 3. FIG. 5 to FIG. 9 are schematic views showing a rotation procedure of the display device 5. Next, details of the display device 1 will be described with reference to these drawings.

  A main body portion 4 in FIG. 1 is obtained by connecting a main body base portion 2 and a main body cover portion 3 with a cover screw 13. That is, the cover screw 13 is inserted into the through hole 12 provided in the main body cover portion 3 and is screwed and coupled to a female screw (not shown) provided in the main body base portion 2. The main body 4 is configured by this connection.

  A display unit mounting surface 7 for mounting the display unit 5 in a slidable manner as will be described later is formed on the front surface of the main body cover unit 3. The display portion mounting surface 7 is provided with an elliptical through hole 9 penetrating substantially the center. A dust-proof wall 14 is formed at the peripheral edge of the through-hole 9 to prevent dust from entering the inside of the main body and operating the internal circuit from the outside. Further, a structure portion 6 having an adjacent wall surface 6 a is formed adjacent to the display portion mounting surface 7. Although the structure part 6 is formed in relation to the components inside the main body cover part 3, in this embodiment, specific data of the display device such as the form of output pulses of the electric energy used for the display part 5 and the composite metamorphic ratio are stored. This will be described as the setting unit 6 for setting. A pair of rails 24 is formed on the back surface of the display unit mounting surface 7 as shown in FIG. The rail 24 extends in a direction perpendicular to the adjacent wall surface 6a of the setting portion 6 (front surface portion 6).

  Next, a mechanism for mounting the display unit 5 mounted on the display unit mounting surface 7 will be described with reference to FIGS. 2 and 3, a mounting projection 23 is formed on the back surface of the display unit 5. When the display unit 5 is placed on the display unit mounting surface 7 of the main body cover unit 3, the mounting projection 23 penetrates the through hole 9 provided in the main body cover unit 3 and is on the back side of the display unit mounting surface 7 ( It protrudes into the main body cover 3. The pressing contact 8 having the elastic pressing piece 8b is fitted to the protruding mounting protrusion 23, and the rotating ring 10 is fixed to the tip of the mounting protruding portion 23 to press the pressing contact 8 so that the display portion 5 is pressed. Is installed. In addition, although the elastic pressing piece 8b of the press contactor 8 is curved in a gentle waveform, an example in which a pair is provided symmetrically is shown, but a plurality of pairs may be provided. Moreover, although the press contact 8 has shown what was formed with the synthetic resin material which has elasticity, it can also be formed with a metal plate.

Next, the connecting structure of the display unit 5, the press contact 8 and the rotating ring 10 will be described in detail.
That is, at the tip of the mounting projection 23 formed on the back side of the display unit 5, there are four fixing hooks 17 for fixing the rotating ring 10. The press contact 8 is provided with an engagement slide portion 8 a that engages with a pair of rails 24 formed on the inner surface of the main body cover portion 3. The center fitting hole 15 has four rotation ring fixing grooves 8c. The rotation ring 10 is provided with two rotation ring fixing protrusions 10a formed to have elasticity. Moreover, the display part fixing surface 16 is provided in four places. Note that a circular sliding recess 18 is provided on the back surface of the display unit 5. The sliding recess 18 has a depth that is the same as the height of the dust-proof wall 14 formed at the peripheral edge of the through-hole 9 and is formed in a circular shape that allows the dust-proof wall 14 to enter and slide. .

  In the display portion 5, the press contact 8 and the rotating ring 10 formed as described above, the press contact 8 is fitted in the mounting projection 23, and the engagement slide portion 8 a is on the display mounting surface 7. It engages with a pair of rails 24 on the back surface and can slide along the rails 24. The rotation ring 10 is fixed by fixing the fixing hooks 17 provided at the tip of the mounting projection 23 to the four display unit fixing surfaces 16. With the rotation ring 10 fixed, the pressure contact 8 is pressed and the pressure contact 8 is pressed in a state where the elastic pressing piece 8b is slightly bent. The display unit 5 is mounted on the display unit mounting surface 7 by this pressure contact. The rotating ring fixing protrusion 10a is engaged with the rotating ring fixing groove 8c of the press contact 8 so that the display unit 5 is not freely rotated. However, the configuration of the present invention is possible without this holding.

  As means for holding the display unit 5 so as not to freely rotate, in the present invention, the display unit 5 is provided between the back surface of the display unit 5 and the display unit mounting surface 7 of the main body cover unit 3 so as to fit each other. A holding stopper for holding the rotating position is provided. That is, as shown in FIG. 2, a cover convex portion 11 is provided on the display unit mounting surface 7 of the main body cover portion 3, and as shown in FIG. 3, the cover convex portion 11 fits on the back surface of the display unit 5. A first recess 19, a second recess 20, a third recess 21, and a fourth recess 22 are provided. Thus, when providing the cover convex part 11 and the recessed parts 19 thru | or 22, the position of the recessed parts 19 thru | or 22 is set to the predetermined rotation position (position rotated 90 degree | times to this angle in this embodiment). The cover convex part 11 is set so as to be fitted into the concave parts 19 to 22 sequentially each time it rotates. Thus, the state of the rotation position of the display unit 5 is maintained by fitting any one of the cover convex part 11 and the concave parts 19 to 22 on the back surface of the display unit 5.

  The rotation of the display unit 5 is easy when there is no structural part such as the setting unit 6 adjacent to the display unit 5 or when the box-shaped portion of the display unit 5 is circular. That is, as will be described later, it is not necessary to rotate the display unit 5 while moving it horizontally. Accordingly, the rail 24, the engagement slide portion 8a of the press contact 8 and the like are not necessary. The rotation when there is a structure portion such as the setting portion 6 adjacent to the display portion 5 is rotated while moving the display portion 5 in the lateral direction as shown in FIGS.

  In FIG. 5A, the main body 4 has a terminal device connected to the power circuit on the upper side and a terminal device connected to the load circuit on the lower side. On the left side of the central part is the display part 5 in which the outer box is formed in a substantially square shape. A setting unit 6 is adjacent to the display unit 5. In this state, as shown in FIG. 5B, the cover convex portion 11 on the display portion mounting surface 7 of the main body cover portion 3 is fitted and held in the first concave portion 19 on the back surface of the display portion 5. The state of being fitted and held is shown in FIGS. 5 (b) and 5 (c).

  Next, the details of each part when the display unit 5 is rotated in the direction of arrow A as shown in FIG. 6 from the state of FIG. 5 will be described. By the rotation in the direction of arrow A, the first corner 25 (shown in FIG. 6) of the first recess 19 starts to climb the first inclined surface 26 of the cover projection 11. At this time, the display unit 5 is lifted in the direction of arrow B against the elastic force of the elastic pressing piece 8b of the press contactor 8. Although the display unit 5 is lifted, the display unit 5 is not detached from the main body cover unit 3 because the display unit 5 is pressed against the display unit mounting surface 7 by the elastic force of the elastic pressing piece 8b. Accordingly, the first concave portion 19 is detached from the cover convex portion 11, the fitting between the first concave portion 19 of the display unit 5 and the cover convex portion 11 is released, and the state shown in FIG. 7 is obtained.

  When the display unit 5 is rotated in the direction of arrow A as described above, the corner portion 27 of the display unit 5 slides on the adjacent wall surface 6a of the adjacent setting unit 6 as shown in FIGS. By this sliding, the display unit 5 moves away from the setting unit 6, that is, leftward in FIG. 7. At this time, as shown in FIG. 4, a pair of rails 24 is formed on the back surface of the display unit mounting surface 7, and the engagement slide portion 8 a of the press contact 8 is engaged with the rails 24. Therefore, the movement of the display unit 5 is performed smoothly. Further, since the first inclined surface 26 (FIG. 6c) is provided on the cover convex portion 11, the rotating operation is performed smoothly also in this respect.

  Next, when the display unit 5 is further rotated in the direction of arrow C as shown in FIG. 7A, the first concave portion 19 is detached from the cover convex portion 11, and the cover convex portion 11 has a second portion. The recess 20 approaches. When the 2nd recessed part 20 approaches the cover convex part 11, since the display part 5 exists in the position away from the setting part 6 like FIG. 8, the cover convex part 11 and the 2nd recessed part 20 do not fit. To fit, the display unit 5 is slid in the direction of arrow D in FIG. 8A and moved to a position adjacent to the setting unit 6 as shown in FIG. In this moved position, the cover convex portion 11 is fitted with the second concave portion 20 as shown in FIG. At that time, the second corner portion 29 (shown in FIG. 8) climbed the second inclined surface 30 and floated in the direction of arrow B against the elastic force of the elastic pressing piece 8b of the press contactor 8 as described above. However, the display unit 5 does not come off from the main body cover unit 3, gets over the cover projection 11, the second recess 20 and the cover projection 11 are fitted, and the display unit 5 is moved 90 from a predetermined position. It is held at the desired position rotated. The cover protrusion 11 is always located inside the sliding recess 18 of the display unit 5 and the cover protrusion 11 and the sliding recess 18 limit the movement of the display unit 5 in the range of rotation. Even if it is not particularly fixed, the display unit 5 does not come off in the horizontal direction when viewed from the front.

  According to the configuration of the present invention, the display unit 5 is rotated by 90 degrees from the predetermined position by performing the same procedure of rotating the display unit as described above. It is also possible to hold the pivoted position in the recess 22. Therefore, even if the mounting direction of the display device body differs depending on the power supply circuit and load circuit of the panel, the display unit 5 for displaying the measured value or time corresponds to the mounting direction of the display device body. It can be rotated and used in an easy-to-view direction.

  In the above embodiment, the predetermined angle has been described as 90 degrees, but the present invention is not limited to this angle. Moreover, in the said Example, although it rotated counterclockwise seeing from the front, you may rotate clockwise.

Embodiment 2. FIG.
FIG. 10 is a perspective view of the main body cover portion 31 according to the second embodiment of the present invention.
FIG. 11 is a perspective view of the display unit 32 according to Embodiment 2 of the present invention.
10 and 11, the cover convex portion 11 is disposed at two locations, and the first concave portion 19, the second concave portion 20, the third concave portion 21, and the fourth concave portion 22 are disposed at two locations. Is.

  In the display device configured as described above, since the plurality of cover convex portions 11 are simultaneously fitted into the concave portions 19 to 22 of the plurality of display portions at two positions, the display device is reliably held at a predetermined position.

  In the first embodiment and the second embodiment, the first concave portion 19 or the second concave portion 20 provided in the display portion 5 is fitted to the cover convex portion 11 provided in the main body cover portion 3. However, it goes without saying that the same effect can be obtained even if the cover convex portion 11 is changed to a concave portion and the concave portion 19 or the like is changed to a convex portion.

It is an external appearance perspective view of the display apparatus in Embodiment 1 of this invention. It is a disassembled perspective view of the display apparatus of FIG. It is an expansion perspective view of the display part of the display apparatus of FIG. It is an external appearance perspective view which shows the inner surface of the main body cover part of the display apparatus of FIG. It is explanatory drawing of the display part rotation procedure of the display apparatus of Embodiment 1 of this invention. It is explanatory drawing of the display part rotation procedure of the display apparatus of Embodiment 1 of this invention. It is explanatory drawing of the display part rotation procedure of the display apparatus of Embodiment 1 of this invention. It is explanatory drawing of the display part rotation procedure of the display apparatus of Embodiment 1 of this invention. It is explanatory drawing of the display part rotation procedure of the display apparatus of Embodiment 1 of this invention. It is a perspective view of the main body cover part of Embodiment 2 of this invention. It is a perspective view of the display part of Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Main body base part 3 Main body cover part 4 Main body part 5 Display part 6 Setting part (front part)
6a Adjacent wall surface 7 Display portion mounting surface 8 Pressure contactor 8a Slide portion 8b Elastic pressing piece 8c Rotating ring fixing groove 9 Through hole 10 Rotating ring 11 Cover convex portion 12 Hole 13 Cover screw 14 Dust-proof wall 15 Fit hole 16 Display portion fixing Surface 17 Fixing hook 18 Sliding recess 19 First recess 20 Second recess 21 Third recess 22 Fourth recess 23 Mounting protrusion 24 Rail 25 First corner 26 First inclined surface 27 Corner Part 29 Second corner part 30 Second inclined surface 31 Body cover part 32 Display part

Claims (3)

A main body base portion having a terminal device for connecting a power supply circuit and a load circuit on the outer surface, a main body cover portion having a display portion mounting surface formed on the front surface, and a main body composed of the main body base portion and the main body cover portion. A display unit that is mounted on the display unit mounting surface of the unit and displays a measurement value or time, and a display unit that is rotatable to a predetermined rotation position corresponding to the mounting direction of the main body unit. In the apparatus, at least a pair of a through hole penetrating through a substantially central portion of the display unit mounting surface of the main body cover unit , a mounting protrusion provided on the back surface of the display unit and penetrating the through hole. A pressing member fitted to the mounting projection on the back side of the display unit mounting surface, and a rotation fixed to the mounting projection so that the display unit can rotate. Dynamic ring and above display Rear and be between the display unit mounting surface, with fitted each other, the state of the display portion pressed by a predetermined rotational position the display section on the display unit mounting surface by the elastic force of the elastic pressing piece A display device comprising a holding stopper for holding. An outer box of the display unit is formed in a substantially square shape, the main body cover unit has a front surface part having an adjacent wall surface adjacent to the outer box of the display unit, and the adjacent to the rear surface of the display unit mounting surface of the main body cover unit. A rail extending in a direction perpendicular to the wall surface is formed, and an engagement slide portion that engages with the rail is provided on the press contactor, and when the display portion is rotated, the fitting of the holding stopper is disengaged and the above When the corner portion of the outer box is in sliding contact with the adjacent wall surface and the display portion slides along the rail and is in a predetermined rotation position, the display portion is brought into contact with the adjacent wall surface via the rail. 2. The display device according to claim 1, wherein the holding stopper is fitted into the adjacent state, and the holding stopper is fitted in the returned state. The display device according to claim 1, wherein the holding stopper is configured to be fitted through an inclined surface formed to be slidable with respect to each other.

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