WO2017183306A1

WO2017183306A1 - Display device

Info

Publication number: WO2017183306A1
Application number: PCT/JP2017/007587
Authority: WO
Inventors: 盛吾種; 雅之早川
Original assignee: 株式会社デンソー
Priority date: 2016-04-20
Filing date: 2017-02-28
Publication date: 2017-10-26
Also published as: JP2017194337A; JP6451684B2

Abstract

This display device is provided with: a ring pointer (140) including a pointer (142) which extends from a prescribed position in the circumferential direction of a ring gear (141) toward the center thereof; and a drive portion (150) which provides the ring gear with a driving force, causing the ring gear to revolve and thereby causing the pointer to rotate. The display device is provided with: a display portion (120) which displays prescribed information; a ring-shaped receiving portion (130) which is fixed to an information display region side of the display portion and rotatably receives the ring pointer; and a decorative ring (160) for decoration, which is fixed to the receiving portion, is disposed on the display region side of the display portion, and inside which the ring gear is disposed.

Description

Display device

Cross-reference of related applications

This application is based on Japanese Patent Application No. 2016-84356 filed on Apr. 20, 2016, the contents of which are incorporated herein by reference.

This disclosure relates to a display device.

The pointer in the display device (indicator) of Patent Document 1 is formed so as to extend from a predetermined position in the circumferential direction of the circular ring-shaped pointer carrier toward the center side. Gear teeth are formed on the outer periphery of the pointer carrier, and the pointer carrier is a ring gear. The pointer carrier is supported so as not to be rattled by supporting devices provided at a plurality of circumferential locations (for example, three locations) on the outer circumferential side (gear side) or inner circumferential side of the pointer carrier. The pointer carrier is rotated by a rotational force input by the pointer driving device, and the pointer rotates accordingly.

Japanese Patent No. 4621316

An object of the present disclosure is a display device using a ring gear having a pointer, and effectively uses an inner space of a decorative ring that is arranged around the display unit of the display device to improve appearance, An object of the present invention is to provide a display device in which a ring gear is arranged in an inner space.

In one aspect of the present disclosure, the display device rotates the pointer by rotating the ring gear by applying a driving force to the ring gear and a ring pointer formed with a pointer extending from a predetermined position in the circumferential direction of the ring gear to the center side. A driving unit to be displayed, a display unit for displaying predetermined information, and a display unit that is fixed to the information display area side, and a ring-shaped receiving unit that rotatably receives a ring pointer, and is fixed to the receiving unit, A decorative ring for decoration, which is arranged on the display area side of the display unit and has a ring gear arranged inside.

According to this, the inner space of the decoration ring can be effectively used by arranging the ring gear inside the decoration ring installed on the information display area side in the display unit.

It is a perspective view which shows the external appearance of the display apparatus which concerns on embodiment. It is a disassembled perspective view which shows the display part of a display apparatus, a ring pointer | guide, and a decoration ring. It is sectional drawing which shows the cross section of a display apparatus. FIG. 4 is an arrow view showing a ring pointer viewed from the IV direction in FIG. 3. FIG. 5 is an enlarged cross-sectional view showing a VV part of FIG. 4. FIG. 6 is a cross-sectional perspective view showing the part shown in FIG. 5 in three dimensions.

Hereinafter, a plurality of modes for carrying out the present disclosure will be described with reference to the drawings. In each embodiment, parts corresponding to the matters described in the preceding embodiment may be denoted by the same reference numerals, and redundant description may be omitted. When only a part of the configuration is described in each mode, the other modes described above can be applied to the other parts of the configuration. Not only combinations of parts that clearly indicate that the combination is possible in each embodiment, but also a combination of the embodiments even if they are not clearly specified unless there is a problem with the combination. It is also possible.

Embodiments will be described with reference to FIGS. The display device of the embodiment is applied to the vehicle display device 100. As shown in FIG. 1, the vehicle display device 100 displays predetermined information related to the vehicle to the user (viewer). The vehicle display device 100 is provided on an upper side of a vehicle instrument panel (hereinafter referred to as an instrument panel) or a user-side surface, and includes a case 110, a display unit 120, a receiving unit 130, a ring pointer 140, a driving unit 150, A decoration ring 160, a spring member 170, a bearing 180, and the like are provided.

For example, the case 110 is a resin container having a bottomed rectangular shape with a front shape, and the opening side faces the user side (viewing side), and the bottom side faces the side opposite to the user. It is arranged to face. Hereinafter, the side opposite to the user is referred to as an anti-user side (anti-viewing side).

The display unit 120 forms various information as predetermined information related to the vehicle on the display surface, and displays this information to the user. As shown in FIG. 3, the display unit 120 is accommodated in the case 110 and fixed to the case 110. As the display unit 120, for example, a TFT (Thin Film Transistor) liquid crystal display using a thin film transistor is used. Here, the display surface of the display unit 120 is a horizontally long rectangle (quadrangle) so as to follow the opening shape of the case 110.

The various information displayed by the display unit 120 is, for example, an image created by the control unit, and is displayed as a digital image to the driver. As a representative example of various information (images), it is formed in a circular area on the left side of the display unit 120, and is formed in a circular area on the right side of the display unit 120 and a speedometer image 121 for displaying the vehicle speed, There is a tachometer image 122 for displaying the engine speed.

In the speedometer image 121, a scale image 121a, a numerical image 121b, a speed value image 121c, and the like are formed. The speed value image 121c is an image displayed by changing the actual speed every moment. Similarly, in the tachometer image 122, a scale image 122a, a numerical image 122b, a shift position image 122c indicating a shift position of the traveling gear, and the like are formed. In the shift position image 122c, one of P (parking), R (reverse), D (drive), and 2nd (second speed) is selectively displayed by the control unit in accordance with the detection signal of the shift position sensor.

In addition, various information images include a temperature image 123 that displays the outside air temperature, a clock image 124 that displays the time, a destination guidance image 125 that displays destination guidance information by the car navigation device, and the selected travel mode (normal , ECO, sports, etc.), a fuel mode image 127 that displays the remaining amount of fuel, a battery image 128 that displays the state of charge of the battery, and the like. The display state of each of the images 121 to 128 is controlled by the control unit.

The receiving part 130, the ring pointer 140, the driving part 150, the decorative ring 160, the spring member 170, and the bearing 180 are provided in the same structure in both areas of the speedometer image 121 and the tachometer image 122 of the display part 120. The meter portion using the pointer (ring pointer 140) is formed together with various information images. Hereinafter, details of the receiving unit 130, the ring pointer 140, the driving unit 150, the decorative ring 160, the spring member 170, and the bearing 180 will be described using the one on the speedometer image 121 side as a representative example.

The receiving unit 130 is a member that rotatably receives the ring pointer 140, and is provided on the display surface side (information display region side) of the display unit 120 so as to coincide with the region of the speedometer image 121. The receiving unit 130 is fixed to the case 110, for example, so as to form a predetermined gap (for example, about 5 mm) from the display surface of the display unit 120. The receiving portion 130 has a ring shape as a whole and a shallow U-shaped cross section, and is arranged so that the bottom side of the U-shaped cross section faces the display surface side of the display unit 120. Further, the end surface on the opening side of the U-shaped cross section is a receiving surface 131 that receives the ring pointer 140 (FIGS. 3, 5, and 6).

The ring pointer 140 includes a ring gear 141 and a pointer 142 extending from a predetermined position in the circumferential direction of the ring gear 141 toward the center. The ring gear 141 is provided with gear teeth 141 a on the outer peripheral side of a ring-shaped member, and is arranged rotatably on the receiving surface 131 of the receiving portion 130. A guide rail 141 c that guides the bearing 180 (the biasing side of the spring member 170) is formed on the facing surface 141 b on the user side of the ring gear 141 so as to be continuous in the circumferential direction of the ring gear 141. That is, the guide rail 141c is a groove formed in a circular shape on the facing surface 141b. A concave portion 141d for assembling the pointer 142 is provided at a predetermined position in the circumferential direction on the surface of the ring gear 141 on the receiving portion 130 side.

The pointer 142 is joined, for example, so that the overall shape is T-shaped (FIG. 4), the T-shaped head is fitted into the concave portion 141d of the ring gear 141, and the tip side faces the center side of the ring gear 141. Has been. The ring gear 141 and the receiving surface 131 side of the pointer 142 are flush with each other.

The driving unit 150 rotates the pointer 142 by applying a driving force in the rotation direction to the ring gear 141 and rotating the ring gear 141. As shown in FIGS. 3 and 4, the driving unit 150 includes a motor 151, a driving gear 152, and an intermediate gear 153. The motor 151 is fixed in the case 110, the drive gear 152 provided on the shaft of the motor 151 is meshed with the intermediate gear 153, and the intermediate gear 153 is meshed with the ring gear 141. The operation of the motor 151 is controlled by the control unit according to the detection signal of the vehicle speed sensor. The operation of the motor 151 on the tachometer image 122 side is controlled by the control unit according to the detection signal of the engine rotation sensor.

As shown in FIG. 5, the decoration ring 160 is arranged on the display surface side of the display unit 120 and is a ring member for decorating the outer peripheral portion of the speedometer image 121. The decorative ring 160 has a U-shaped cross section (inverted U shape), is fixed to the receiving portion 130, and is arranged so as to cover the ring gear 141. That is, the ring gear 141 is accommodated (arranged) inside such that the opening side of the U-shaped cross section of the decorative ring 160 faces the receiving portion 130 side.

The surface of the decoration ring 160 is, for example, plated with a metal color so that the area of the speedometer image 121 can be seen in three dimensions to the user, and the appearance of the outer peripheral side of the speedometer image 121 is improved. Let

The spring member 170 is a biasing member that is fixedly disposed in the decorative ring 160 and applies a biasing force to the ring gear 141 to suppress the play of the ring gear 141 with respect to the receiving portion 130. A plurality of (for example, five) spring members 170 are provided in the circumferential direction of the decorative ring 160 and fixedly arranged. In the present embodiment, as shown in FIGS. 5 and 6, the spring member 170 employs a resin plate spring bent in a U-shape. The spring member 170 has an end portion 171 on one side in the longitudinal direction, a curved portion 172 in the intermediate region, a flange portion 173 provided on the other side, and a protruding portion 174.

The spring member 170 is arranged such that the end 171 is fixed to the receiving portion 130 and the convex surface of the curved portion 172 faces the decorative ring 160 side. The flange portion 173 and the protruding portion 174 extend toward the facing surface 141b and are disposed adjacent to the guide rail 141c.

The bearing 180 is interposed between the ring gear 141 and the spring member 170, and is a sliding member that improves the slidability when the ring gear 141 rotates. A protrusion 174 of the spring member 170 is inserted into the center of the bearing 180, and one end in the radial direction of the bearing 180 is inserted into the guide rail 141c. By the spring member 170, the urging force toward the receiving portion 130 side and the urging force toward the center side act on the ring gear 141 (guide rail 141c). The biasing force toward the center side balances between the plurality of spring members 170 to determine the center position of the ring gear 141 with respect to the receiving portion 130.

Next, the operation of the vehicle display device 100 will be described.

When the vehicle power source (ignition switch or accessory switch) is turned on, each image 121 to 128 is displayed on the display unit 120 by the control unit. Further, a speed value image 121c is displayed according to the detection signal of the vehicle speed sensor. Further, a shift position image 122c is displayed according to the detection signal of the shift position sensor.

Furthermore, in response to the detection signal of the vehicle speed sensor, the motor 151 on the speedometer image 121 side is operated and the ring gear 141 is rotated, whereby the pointer 142 is rotated to indicate the vehicle speed.

Similarly, when the motor 151 on the tachometer image 122 side is operated and the ring gear 141 is rotated according to the detection signal of the engine rotation sensor, the pointer 142 is rotated to indicate the engine speed.

In the speedometer image 121 and the tachometer image 122, each pointer 142 rotates like a normal pointer having a rotation drive shaft at the center of each

image

121, 122.

In the present embodiment, by arranging the ring gear 141 inside the decoration ring 160 installed on the information display surface side (display area side) in the display unit 120, the inner space of the decoration ring 160 is effective. Can be used effectively.

Further, the spring member 170 is used to suppress the play of the ring gear 141 with respect to the receiving portion 130. A plurality of spring members 170 are provided in the circumferential direction in the decorative ring 160 and apply a biasing force to the ring gear 141. Thereby, compared with the support apparatus in a prior art, it becomes possible to arrange | position the spring member 170 in the decoration ring 160 without difficulty. Therefore, in the vehicle display device 100, when the ring gear 141 is formed on the display surface side using the ring gear 141 formed on the display surface 120, a portion other than the pointer 142 is suppressed while suppressing the backlash of the ring gear 141. It can be easily arranged in the region of the decoration ring 160.

Further, since the spring member 170 is a leaf spring that extends from the inner surface of the decorative ring 160 to the facing surface 141b side of the ring gear 141 and applies a biasing force to the facing surface 141b (guide rail 141c), the spring member 170 is further provided with a spring. It becomes easy to arrange the member 170 in the decoration ring 160.

Further, since the ring gear 141 is provided with the guide rail 141c for guiding the biasing side of the spring member 170 when the ring gear 141 rotates, the biasing position of the spring member 170 with respect to the ring gear 141 can be stabilized. it can.

Further, a sliding member (bearing 180) is provided between the ring gear 141 and the spring member 170, that is, on the protrusion 174 of the spring member 170. As a result, when the ring gear 141 is rotated, the bearing (sliding member) 180 provided on the protrusion 174 rotates along the guide rail 141c (arrow in FIG. 6), so that the spring member 170 (bearing 180) for the ring gear 141 is rotated. ) Can be improved.

In the above embodiment, the vehicular display device 100 has been described as including the case 110, the display unit 120, the receiving unit 130, the ring pointer 140, the driving unit 150, the decorative ring 160, the spring member 170, the bearing 180, and the like. . However, as a minimum configuration of the vehicular display device 100, the display unit 120, the receiving unit 130, the ring pointer 140, the driving unit 150, and the decoration ring 160 may be provided.

Further, as the display unit 120 in the above-described embodiment, instead of the TFT liquid crystal display, other types of displays such as an organic EL display made of a layered structure using an organic compound may be used. For example, the organic EL display has an excellent display function in a low temperature environment, and is suitable for use in such an environment.

Further, the display unit 120 may be a display as a display board having a printed information image in addition to a display for displaying an image.

Furthermore, although the decoration ring 160 is fixed to the display area side where information is displayed in the display unit 120, the display area side may be a display surface where information is displayed. It may be an outer peripheral surface on the display surface but no information is displayed.

Moreover, in the said embodiment, although demonstrated as what used the leaf | plate spring which has the curved part 172 as the spring member 170 (biasing member), it is not limited to this, The spring member bent into the crank shape, Other coil springs, a plurality of laminated leaf springs, or the like may be used.

The guide rail 141c in the ring gear 141 may be eliminated if the spring member 170 does not deviate from the ring gear 141.

Further, the bearing 180 may be eliminated if there is no substantial problem with the slidability of the spring member 170 with respect to the ring gear 141.

Moreover, although the said embodiment demonstrated as what the two ring pointers 140 were used for the display part 120, it is not limited and the number of the ring pointers 140 is good also as one or three or more. .

In the above-described embodiment, in the display device for a vehicle, the ring pointer 140 displays the vehicle speed and the engine speed, but is widely applied to other information (fuel remaining amount, engine water temperature, etc.). be able to.

Claims

A ring pointer (140) having a pointer (142) extending from a predetermined position in the circumferential direction of the ring gear (141) toward the center;
A drive unit (150) for applying a driving force to the ring gear and rotating the pointer by rotating the ring gear;
A display unit (120) for displaying predetermined information;
A ring-shaped receiving part (130) fixed to the information display area side of the display part and rotatably receiving the ring pointer;
A display device, comprising: a decoration ring (160) for decoration that is fixed to the receiving portion, is disposed on the display area side of the display portion, and has the ring gear disposed inside.
2. The display device according to claim 1, wherein a plurality of urging members (170) that are fixedly arranged in a circumferential direction of the ring and apply a urging force to the ring gear in the direction of the receiving portion are disposed in the decoration ring. .
The urging member is a leaf spring that extends from an inner surface of the decorative ring to a facing surface (141b) side of the ring gear that faces the decorative ring, and applies the urging force to the facing surface. 2. The display device according to 2.
The display device according to claim 2 or 3, wherein the ring gear (141) has a guide rail (141c) for guiding an urging side of the urging member when the ring gear rotates.
The display according to any one of claims 2 to 4, wherein a sliding member (180) is provided between the ring gear and the urging member to enhance slidability when the ring gear rotates. apparatus.
The display device according to claim 5, wherein the sliding member is a bearing.