JP6959074B2 - Display device for bicycles or motorcycles - Google Patents

Description

The present invention relates to a display device for a bicycle or a motorcycle, for example, a display device for a bicycle or a motorcycle having a display unit.

It is known that a display unit is provided in a display device for a bicycle (for example, Patent Document 1). It is known that a display unit is provided in a display device of an electrically assisted bicycle (for example, Patent Document 2). It is known that a display unit is provided in a display device of a motorcycle (for example, Patent Document 3).

Japanese Unexamined Patent Publication No. 2001-187593 Japanese Unexamined Patent Publication No. 2015-85919 Japanese Unexamined Patent Publication No. 2001-260707

The surface of the display device that the passengers see may be a single color such as black, and characters or symbols such as white may be highlighted in the single color as the display unit. In direct sunlight, the entire characters and symbols on the display may shine and cannot be seen.

The present invention has been made in view of the above problems, and an object of the present invention is to improve the visibility of the display device.

The present invention is provided by laminating a first layer that is transparent to visible light and the first layer, and is laminated with a second layer that is translucent to visible light, and the first layer and the second layer. A third layer having a plurality of first openings and blocking visible light, and the first layer and the second layer are laminated and overlapped with the plurality of first openings in a plan view. It has a fourth layer that transmits and scatters visible light, the second layer is provided between the first layer and the third layer, and the fourth layer is in contact with the second layer. A seat visually observed by a passenger riding a bicycle or a motorcycle provided in each of the plurality of first openings of the third layer, and visible light passing through the plurality of first openings and the fourth layer are emitted. and, a plurality of light emitting elements provided at positions corresponding to the plurality of first openings, wherein the sheet is provided on one surface, and a case for storing the plurality of light emitting elements, the sheet, the For bicycles or motorcycles having a third layer joined to the one surface of the case and having one third opening including the plurality of first openings in a plan view and having a joining layer not overlapping the plurality of first openings . It is a display device.

In the above configuration, the second layer, the third layer, and the fourth layer may be a printing layer provided on the first layer.

In the above configuration, the seat may be configured to be visually recognized by a passenger riding a bicycle.

In the above configuration, the light emitting element is an LED, the transmittance of the second layer in visible light is 1% or more and 50% or less, and the second layer and the third layer contain pigments of the same color. The fourth layer can be configured to include diffusion beads having a diameter of 1 μm or more and 20 μm or less.

In the above structure, provided between the fourth layer and the plurality of light emitting elements can be configured to include a convex lens for irradiating the visible light, wherein the plurality of light emitting elements is emitted to the fourth layer.

In the above configuration, the switch housed in the case is provided, and in the area corresponding to the switch, the first layer, the second layer, and the third layer are convex toward the surface viewed by the passenger. The junction layer and the case have an opening, and the switch can be driven by pressing the convex portion .

According to the present invention, the visibility of the display device can be improved.

FIG. 1 is a diagram showing the appearance of an electrically assisted bicycle in which the display operation device according to the first embodiment is used. FIG. 2 is a block diagram of the display operation device and the control unit according to the first embodiment. FIG. 3 is a diagram showing a state in which the display operation device is attached to the handlebar of the electric auxiliary bicycle. 4 (a) and 4 (b) are perspective views of the display operation device according to the first embodiment. FIG. 5 is a cross-sectional view of the display operation device according to the first embodiment. FIG. 6 is a disassembled perspective view of the display operation device according to the first embodiment. FIG. 7 is a disassembled perspective view of the seat of the display operation device according to the first embodiment. FIG. 8 is a plan view of the vicinity of the window and the display unit in the first embodiment. FIG. 9 is a cross-sectional view of the vicinity of the display unit in the first embodiment. 10 (a) and 10 (b) are schematic cross-sectional views of the display unit in Comparative Example 1 and Example 1. FIG. 11 is a cross-sectional view of the vicinity of the display unit in the first embodiment.

Hereinafter, examples of the present invention will be described with reference to the drawings.

An electric auxiliary bicycle will be described as an example of a vehicle in which a vehicle display operation device is used. FIG. 1 is a diagram showing the appearance of an electrically assisted bicycle in which the display operation device according to the first embodiment is used. As shown in FIG. 1, the electric auxiliary bicycle has a frame 80, a handle 81, a stem 82, a saddle 83, a headlight 84, a front wheel 85, a rear wheel 86, a crank 87, and the like. The driver (passenger) sits on the saddle 83 and holds the steering wheel 81.

The frame 80 is provided with a power storage device 90 and a control unit 91. The front wheel 85 is provided with a motor 92 and a rotation sensor 93. A torque sensor 94 is provided on the crank 87. A brake sensor 95 is provided on the handle 81.

The power storage device 90 is, for example, a secondary battery. The power storage device 90 is charged by household electric power and electric power generated by the motor 92, and supplies electric power to the motor 92, the headlight 84, and the control unit 91.

The motor 92 is, for example, a three-phase DC brushless motor. The motor 92 drives the front wheels 85 when assisting the driver's human power (during assist operation), and regenerates electric power from the rotation of the front wheels 85 when operating the regenerative brake (during regenerative operation) and supplies the electric power to the power storage device 90. do. The rotation sensor 93 is, for example, a Hall element, and detects the rotation of the motor 92.

The torque sensor 94 detects the torque generated in the crank 87 when the driver steps on it. The brake sensor 95 detects that the driver has applied the brake.

FIG. 2 is a block diagram of the display operation device and the control unit according to the first embodiment. As shown in FIG. 2, the control unit 91 includes a control circuit 96 and a motor drive circuit 97.

The control circuit 96 includes a processor such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit), and a storage device such as a ROM (Read Only Memory) and / or a RAM (Random Access Memory).

The control circuit 96 controls the motor drive circuit 97 based on the signals input from the rotation sensor 93, the torque sensor 94, and the brake sensor 95. For example, the control circuit 96 calculates the amount of assisting the driver based on the signals from the rotation sensor 93 and the torque sensor 94 during the assist operation, and drives the motor 92. The control circuit 96 controls the motor 92 by calculating the regenerative braking amount based on the signals from the rotation sensor 93 and the brake sensor 95 during the regenerative operation. The control circuit 96 controls turning on and off the headlight 84.

The motor drive circuit 97 includes, for example, a three-phase bridge inverter circuit. The motor drive circuit 97 supplies drive power from the power storage device 90 to the motor 92 during the assist operation, and supplies regenerative power from the motor 92 to the power storage device 90 during the regenerative operation.

The display operation device 10 includes an optical sensor 12, a lighting device 14, an input device 16, a display device 18, and a control device 15. The driver controls the control unit 91 by using the display operation device 10. Further, the display operation device 10 displays the information output from the control unit 91.

The optical sensor 12 is a photodiode, a phototransistor, a photo IC (Integrated Circuit) and / or a CdS cell, etc., and detects the illuminance of the environment by receiving light. The optical sensor 12 outputs a signal corresponding to the intensity of the received light to the control device 15.

The lighting device 14 is a backlight of an LED (Light Emitting Diode) and / or an LCD (Liquid Crystal Display). The lighting device 14 improves the visibility of the display device 18 like a backlight. The lighting device 14 may provide information to the driver by lighting. The lighting device 14 is turned on and off according to the instruction of the control device 15.

The input device 16 is an operation button and / or an operation switch and the like. By operating the input device 16, the driver turns on and off the headlight 84, switches the operation mode (with or without assist, etc.) in the assist operation, and / or switches the operation mode in the regenerative operation. The input device 16 outputs a signal corresponding to the operation of the driver to the control device 15.

The display device 18 is a 7-segment and / or LCD or the like and displays information. The display device 18 provides information such as the on / off state of the headlight 84, the currently set operation mode of the assist operation, and the currently set operation mode of the regenerative operation according to the signal from the control device 15. , And / or display the charge amount of the power storage device 90.

The control device 15 includes a processor and a storage device such as a CPU or an MPU. The control device 15 controls the lighting device 14 and the display device 18 based on the signals input from the optical sensor 12 and the input device 16 and the signals from the control unit 91. The control device 15 outputs information such as a signal input from the optical sensor 12 and the input device 16 to the control unit 91.

FIG. 3 is a diagram showing a state in which the display operation device is attached to the handlebar of the electric auxiliary bicycle. As shown in FIG. 3, a handle 81 is attached to the stem 82. A grip 88 and a brake lever 89 are attached to the tip of the handle 81. The display operation device 10 is attached near the grip 88 of the handle 81. This makes it easier for the driver to operate the display operation device 10 while holding the grip 88. The visual surface of the display operation device 10 is attached so as to be inclined with respect to the horizontal direction so that the driver can easily see it.

4 (a) and 4 (b) are perspective views of the display operation device according to the first embodiment. FIG. 4A is a perspective view from above, and FIG. 4B is a perspective view from below. As shown in FIGS. 4A and 4B, the display operation device 10 includes a seat 40, a case 30, and a fixture 32.

The case 30 has an upper case 30a and a lower case 30b. The upper case 30a and the lower case 30b are joined by welding or the like. Case 30 is an ergonomic resin, for example, an ASA (acrylate styrene acrylonitrile) resin. A visual surface 21 is provided on the upper surface (front surface) of the case 30. The visual surface 21 visually recognized by the driver is provided with buttons 22a and 22b, display units 24a and 24b, and a window 26. Buttons 22a and 22b are input devices 16. The button 22a is a switch for switching the on / off of the headlight 84. Button 22b is a switch for switching modes such as assist operation and regenerative operation. The display unit 24a displays the remaining battery level of the power storage device 90 as a percentage. The display unit 24b displays the assist status.

A fixture 32 is attached to the lower surface of the case 30. The fixture 32 is a member that fixes the display operation device 10 to the handle 81. By tightening the screw 36, the fixture 32 is fixed to the handle 81.

FIG. 5 is a cross-sectional view of the display operation device according to the first embodiment. As shown in FIG. 5, a sheet 40 is attached to the upper surface of the upper case 30a. The surface of the sheet 40 is the visual surface 21. The circuit board 50 is housed in the case 30. Electronic components (not shown) are mounted on the upper and lower surfaces of the circuit board 50. The circuit board 50 is fixed to the upper case 30a by screws 59. By joining the upper case 30a and the lower case 30b, the circuit board 50 is sealed in the case 30. The fixture 32 has a ring shape having an inner diameter similar to the diameter of the handle 81. The handle 81 is inserted into the cavity 35 of the fixture 32, and the fixture 32 is tightened with the screw 36. As a result, the display operation device 10 is fixed to the handle 81.

FIG. 6 is a disassembled perspective view of the display operation device according to the first embodiment. The display operation device 10 is disassembled into a sheet 40, an upper case 30a, a circuit board 50, and a lower case 30b. The surface of the sheet 40 is the visual surface 21. The visual surface 21 is the same as that in FIG. 4, and the description thereof will be omitted.

The upper case 30a is provided with openings 34a to 34c. The openings 34a and 34b are provided at positions corresponding to the display units 24a and 24b. The opening 34c is provided at a position corresponding to the window 26. A transparent member is fitted in the openings 34a to 34c. The rubber material 60 is fitted at positions corresponding to the buttons 22a and 22b of the upper case 30a.

A 7-segment 52, an LED 54, an optical sensor 56, and a switch 58 (for example, a tact switch) are provided on the upper surface of the circuit board 50. The display (number) of the 7-segment 52 is displayed on the display unit 24a. The display unit 24b is turned on by the light of the LED 54. The LED 54 corresponds to the lighting device 14. The optical sensor 56 corresponds to the optical sensor 12 in FIG. 2 and detects the light incident from the window 26. The switch 58 comes into contact with the lower surface of the rubber material 60 via the plate material 62. When the buttons 22a and 22b are pressed, the switch 58 is driven. The lower case 30b is provided with a recess for accommodating electronic components mounted on the lower surface of the circuit board 50.

FIG. 7 is a disassembled perspective view of the seat of the display operation device according to the first embodiment. The sheet 40 has a first layer 42, a second layer 44, a third layer 46, and a bonding layer 48. The first layer 42 is a layer transparent to visible light. The surface of the first layer 42 is a visual surface 21. The first layer 42 has a convex portion 41 in which a region corresponding to the buttons 22a and 22b protrudes. The first layer 42 is a transparent resin such as PET (polyethylene terephthalate). The thickness of the first layer 42 is, for example, 125 μm.

The second layer 44 is a layer that is translucent with respect to visible light, and is provided on the surface opposite to the visual surface 21 of the first layer 42. A plurality of openings 43 are provided in the area corresponding to the window 26. The second layer 44 has a convex portion 43d in which the region corresponding to the buttons 22a and 22b protrudes. The second layer 44 is, for example, a printing layer printed on the first layer 42 and contains a pigment. The pigment contained is, for example, a black pigment. The thickness of the second layer 44 is, for example, 5 μm. The second layer 44 is translucent as a whole because the concentration (content rate) of the black pigment is adjusted by the diluent.

The third layer 46 is a layer that blocks visible light (that is, a layer that is opaque to visible light), and is provided on the surface of the second layer 44 opposite to the first layer 42. The third layer 46 has openings 45a, 45b and 45c in the regions corresponding to the display units 24a and 24b and the window 26, respectively. The third layer 46 has a convex portion 45d in which a region corresponding to the buttons 22a and 22b protrudes. The area for printing characters and / or symbols is an opening. The third layer 46 is, for example, a printing layer printed on the second layer 44 and contains a pigment. The pigment contained is, for example, a black pigment. The thickness of the third layer 46 is, for example, 5 μm. Similar to the second layer 44, the third layer 46 has a black pigment concentration (content rate) adjusted with a diluent, but since it contains a large amount of black pigment, it has a light-shielding property as a whole. It is a layer.

The joining layer 48 is a layer that joins the first layer 42, the second layer 44, and the third layer 46 to the case 30, and is provided on the surface of the third layer 46 opposite to the second layer 44. The bonding layer 48 has an opening 47a in a region corresponding to the display portion 24a, an opening 47b in a region corresponding to the display portion 24b and the window 26, and an opening 47d in a region corresponding to the buttons 22a and 22b. The bonding layer 48 is an adhesive resin layer such as double-sided tape. The thickness of the bonding layer 48 is, for example, 0.5 mm. The case 30 blocks visible light.

FIG. 8 is a plan view of the vicinity of the window and the display unit in the first embodiment. The openings 43, 45b, 45c, 47b, the fourth layer 70 and the LED 54 and the optical sensor 56 are illustrated. FIG. 9 is a cross-sectional view of the vicinity of the display unit in the first embodiment.

As shown in FIGS. 8 and 9, in the display unit 24b, the first layer 42 and the second layer 44 are not provided with openings. The third layer 46 is provided with an opening 45b. The fourth layer 70 is provided in the opening 45b in a plan view. The joint layer 48 is provided with an opening 47b. In a plan view, the opening 47b is provided so as to be larger than the opening 45b and include the opening 45b. The upper case 30a is provided with an opening 34b. The lens in the aperture 34b is not shown. The LED 54 is provided on the circuit board 50. In a plan view, the LED 54 is provided so as to overlap the openings 45b, 47b, 34b and the fourth layer 70. As shown in FIG. 8, in the window 26, the optical sensor 56 is provided so as to overlap the plurality of openings 43 and 45c.

In the first embodiment, an opaque third layer 46 is provided under the transparent first layer 42. The third layer 46 is, for example, a black printing layer, and when the driver looks at the visual surface 21, it looks like a single color such as black. In the display units 24a and 24b, an opening 45b is provided in the third layer 46 so that the driver can see the 7-segment 52 and the LED 54 when the 7-segment 52 and the LED 54 emit light. When the 7-segment 52 and the LED 54 do not emit light, the translucent between the first layer 42 and the third layer 46 so that the driver cannot see the 7-segment 52, the LED 54, the circuit board 50, etc. through the openings 45a and 45b. The second layer 44 is provided. The second layer 44 is a translucent black print, and the driver cannot see the 7-segment 52, the LED 54, and the circuit board 50. As a result, the display units 24a and 24b and the other visual surface 21 are indistinguishable in a single color.

The vehicle display device may be exposed to direct sunlight on the visual surface 21. Even in such a case, the transmittance of the translucent second layer 44 is reduced so that the driver cannot see the 7-segment 52, the LED 54, and the circuit board 50. For example, the transmittance of the second layer 44 in visible light is 50% or less, preferably 25% or less. The transmittance of the second layer 44 in visible light is 1% or more, preferably 5% or more so that the driver can visually recognize the light from the 7-segment 52 and the LED 54 when the 7-segment 52 and the LED 54 emit light. ..

The effect of Example 1 will be described in comparison with Comparative Example. 10 (a) and 10 (b) are schematic cross-sectional views of the display unit in Comparative Example 1 and Example 1. As shown in FIG. 10A, in Comparative Example 1, the fourth layer 70 is not provided in the opening 45b of the third layer 46. The visible light 72a emitted from the LED 54 is attenuated as it passes through the translucent second layer 44, and the weak light 72b is emitted from the visual plane 21. When the driver looks at the visual surface in a dark state, the entire inside of the opening 45b appears to be shining. However, when the driver looks at the visual surface 21 in direct sunlight, the LED 54 looks like dots.

As shown in FIG. 10B, in the first embodiment, the fourth layer 70 is provided in the opening 45b of the third layer 46. The fourth layer 70 transmits and diffuses the visible light 72a emitted by the LED 54. The diffused light 72c is emitted from the visual plane 21. The fourth layer 70 is a layer on which ink containing, for example, diffusion beads is printed. Diffusion beads are spherical or non-spherical particles made of, for example, a transparent resin or inorganic material. The diameter of the diffusion beads is, for example, 1 μm to 20 μm. When the diffused beads are irradiated with visible light, the visible light is scattered (diffused). As a result, when the driver looks at the visual surface 21 in direct sunlight, the entire fourth layer 70 appears to shine. For example, white ink may be mixed with the fourth layer 70. As a result, the entire fourth layer 70 looks brighter. The fourth layer 70 may be provided between the first layer 42 and the second layer 44.

FIG. 11 is a cross-sectional view of the vicinity of the display unit in the first embodiment, and is an example in which a lens is provided. As shown in FIG. 11, a convex lens 74 is provided in the opening 34b of the upper case 30a. The convex lens 74 is made of a transparent resin such as polycarbonate.

The visible light 72a emitted from the LED 54 is divergent light that spreads. The visible light 72a becomes light 72d whose divergence is weakened or converged by the convex lens 74. The light 72d is attenuated and scattered by the sheet 40. As a result, the scattered visible light 72e is emitted from the visual plane 21. By providing the convex lens 74 in this way, most of the visible light 72a emitted from the LED 54 is irradiated to the fourth layer 70. As a result, the display unit 24b can be made brighter.

According to the first embodiment, the sheet 40 visually observed by the passengers boarding the vehicle has the first layer 42, the second layer 44, the third layer 46, and the fourth layer 70 which are laminated. The first layer 42 is transparent to visible light. The second layer 44 is translucent with respect to visible light. The third layer 46 blocks visible light. The fourth layer 70 transmits and scatters visible light. The fourth layer 70 overlaps the opening 45b of the third layer 46 in a plan view. The LED 54 (light emitting element) emits visible light that passes through the fourth layer 70. The sheet 40 is provided on one surface of the case 30 for accommodating the LED 54. As a result, the light emitted by the LED 54 can be scattered by the fourth layer 70. Therefore, the visibility of the display unit 24b can be improved even in direct sunlight. The fourth layer 70 may be provided so as to cover the entire opening 45b.

The stacking order of the first layer 42, the second layer 44, the third layer 46, and the fourth layer 70 can be appropriately set. It is preferable that the second layer 44 is provided between the first layer 42 and the third layer 46, and the fourth layer 70 is provided in contact with the second layer 44. Thereby, the first layer 42, the second layer 44 and the third layer 46 can be easily formed.

The second layer 44, the third layer 46, and the fourth layer 70 are printing layers provided on the first layer 42. As a result, the second layer 44, the third layer 46, and the fourth layer 70 can be easily and accurately formed.

The second layer 44 and the third layer 46 contain pigments of the same color (eg, black pigment). As a result, the driver can recognize the visual surface 21 as a single color (for example, black). The fourth layer 70 contains diffusion beads. As a result, the fourth layer 70 can scatter visible light.

The openings 45a to 45c of the third layer 46 and the fourth layer 70 may be formed by, for example, etching or machining.

The convex lens 74 is provided between the LED 54 and the fourth layer 70, and irradiates the fourth layer 70 with visible light emitted by the LED 54. As a result, the display unit 24b can be made brighter.

The joining layer 48 has an opening 47b including an opening 45b in a plan view, and joins the sheet 40 to the case 30. As a result, the first layer 42, the second layer 44, the third layer 46, and the fourth layer 70 can be joined to the case 30. Since the opening 47b includes the opening 45b, absorption of light by the bonding layer 48 and the like can be suppressed. Since the bonding layer 48 is thick, the openings 47a and 47b are preferably formed by machining. In this case, since the openings 47a and 47b have poor dimensional accuracy, it is preferable to form the openings 47b larger than the openings 45b and 45c.

In the first embodiment, the electric auxiliary bicycle is described as an example of the vehicle, and the display device for the electric auxiliary bicycle is described as an example as the display device. However, the display device may be for a bicycle or a motorcycle without an electric auxiliary function. ..

Although the examples of the present invention have been described in detail above, the present invention is not limited to such specific examples, and various modifications and modifications are made within the scope of the gist of the present invention described in the claims. It can be changed.

10 Display operation device 21 Visual surface 22a, 22b Button 24a, 24b Display part 26 Window 30 Case 30a Upper case 30b Lower case 32 Fixtures 34a, 34b, 34c, 43, 45a-45c, 47a, 47b Opening 40 Sheet 42 1st Layer 44 2nd layer 46 3rd layer 48 Junction layer 50 Circuit board 52 7-segment 54 LED
56 Optical sensor 58 Switch 70 Fourth layer 74 Convex lens

Claims (6)

The first layer, which is transparent to visible light,
A second layer, which is provided so as to be laminated with the first layer and is translucent to visible light,
A third layer, which is provided so as to be laminated with the first layer and the second layer, has a plurality of first openings, and blocks visible light.
It has a fourth layer which is provided so as to be laminated with the first layer and the second layer, and which overlaps with the plurality of first openings in a plan view to transmit and scatter visible light.
The second layer is provided between the first layer and the third layer, and the fourth layer is provided in contact with the second layer in each of the plurality of first openings of the third layer. Seats that passengers on bicycles or motorcycles can see,
A plurality of light emitting elements that emit visible light that passes through the plurality of first openings and the fourth layer and are provided at positions corresponding to the plurality of first openings.
A case in which the sheet is provided on one surface and stores the plurality of light emitting elements, and a case in which the plurality of light emitting elements are stored.
The sheet has the third layer bonded to the one surface of the case, has one third opening including the plurality of first openings in a plan view, and does not overlap the plurality of first openings. Display device for bicycles or motorcycles with layers. The light emitting element is an LED.
The transmittance of the second layer in visible light is 1% or more and 50% or less.
The second layer and the third layer contain pigments of the same color and contain
The display device for a bicycle or a motorcycle according to claim 1 , wherein the fourth layer contains diffusion beads having a diameter of 1 μm or more and 20 μm or less. The display device for a bicycle or a motorcycle according to claim 1 or 2, wherein the second layer, the third layer, and the fourth layer are printing layers provided on the first layer. The seat is a display device for a bicycle or a motorcycle according to any one of claims 1 to 3, which is visually observed by a passenger riding a bicycle. Equipped with a switch housed in the case
In the region corresponding to the switch, the first layer, the second layer and the third layer have protrusions protruding toward the surface viewed by the occupant, and the joint layer and the case have openings. The display device for a bicycle or a motorcycle according to claim 3, wherein the switch is driven by pressing the convex portion. Provided between the fourth layer and the plurality of light emitting elements, wherein the visible light which the plurality of light emitting elements are emitted in any one of claims 1 to 5 comprising a convex lens for irradiating the fourth layer Display device for bicycles or motorcycles.

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