A projection device that can be adjusted in direction for attachment to a vehicle chassis

Abstract

Provided is a projection device that can adjust the direction, angle, and dimensions of a projected image and is attached to a vehicle chassis. 【Solution means】A projection device capable of direction adjustment for attachment to a vehicle chassis, including a bracket unit 10 and a projection lamp unit 20. The bracket unit has a base 101 for fixing to the vehicle chassis, a fixed bracket 102 fixed to the base, and a movable bracket rotatably connected to the fixed bracket, and the projection lamp unit is connected to the movable bracket. The rotational connection point between the fixed bracket and the movable bracket is combined by a first face gear and a second face gear and is connected by an adjustment element. When the adjustment element is tightened to engage the second face gear with the first face gear, the movable bracket is non-rotatable relative to the fixed bracket. When the adjustment element is loosened so that the gears do not engage with each other, the movable bracket is rotatable.

Description

Technical Field

[0001] The present invention relates to the field of car accessories, and more particularly to a projection device that can be adjusted in direction for attachment to a vehicle chassis.

Background Art

[0002] To provide a visual atmosphere, a sensory ornamentality, a sense of dignity or a gorgeousness for a vehicle, some commercially available vehicles are equipped with a projection lamp, which can project patterns, characters, images, etc. onto the ground or an appropriate position of the vehicle body when the projection lamp is activated. For example, the projection lamp is attached to a part of the vehicle chassis and connected to the vehicle's power supply. When the vehicle door is opened, the projection lamp is automatically activated by sensing, and patterns, character images are projected onto the ground to highlight the visual sensory effect at night or in a dark environment. The patterns and characters may be the logo of the automobile brand, trademarks or any patterns and characters.

[0003] Conventional projection lamps are developed and designed based on various types and dimensions of vehicles. That is, if a projection lamp with specific specifications is not attached to the corresponding model, the projected image cannot obtain a highly accurate focus. In addition, since the dimensions, directions and angles of the projected images are fixed, they cannot be adjusted based on personal preferences.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The object of the present invention is to provide a projection device that can adjust the direction, angle, and dimensions of image projection based on personal preferences, and in particular, can be adjusted in direction for attachment to a vehicle chassis.

Means for Solving the Problems

[0005] The projection device capable of direction adjustment for attachment to a vehicle chassis provided by the present invention includes a bracket unit and a projection lamp unit. The bracket unit includes a base for fixing to the vehicle chassis, two fixed brackets respectively fixed to opposite sides of the base and having first face gears symmetrically formed on the opposing faces, and a movable bracket having a pair of convex portions formed on opposite sides, with second face gears symmetrically formed on the pair of convex portions, and the centers of the second face gear and the first face gear are connected by an adjustment element. By operating the adjustment element, the second face gear and the first face gear mesh with each other, and the movable bracket cannot be rotated relative to the fixed bracket. By operating the adjustment element, the second face gear and the first face gear do not mesh with each other, and the movable bracket can be rotated relative to the fixed bracket. The projection lamp unit is connected to the movable bracket and can adjust the direction, angle, and size of the image projected by rotating with the rotation of the movable bracket.

[0006] In an embodiment of the present invention, at least one arc-shaped slot is provided on the horizontal surface of the base, and a fixing screw can pass through the arc-shaped slot to fix the base to the vehicle chassis. Thereby, when installing, the base can be rotated with the fixing screw loosened to horizontally adjust the direction of the projected image.

[0007] In an embodiment of the present invention, the first face gears are formed on the two fixed brackets so as to face each other, and the second face gears are formed on the pair of convex portions in opposite directions. Thereby, the first face gear and the second face gear can face each other.

[0008] Preferably, a screw hole may be formed at the center of the second face gear, a center hole may be formed at the center of the first face gear, a male screw may be formed on the adjusting element, the adjusting element passes through the center hole, and the male screw is tightened into the screw hole, thereby completing the connection of the centers of the second face gear and the first face gear. Thus, when the adjusting element is tightened, the first face gear and the second face gear mesh with each other, and when the adjusting element is loosened, the first face gear and the second face gear can be separated from each other or incompletely meshed and tightened, thereby enabling the rotation and adjustment of the bracket, and enabling the adjustment of the angle and size of the image projected by the projection lamp unit onto the ground.

[0009] In an embodiment of the present invention, the projection lamp unit may include a housing, a lens component provided in the housing and including a pixel element, a circuit board provided in the housing, and a lamp board component including a light-emitting element electrically connected to the circuit board and projecting an image of the pixel element from the housing through the lens component by the generated light, and a heat dissipation block connected and fixed to the movable bracket, connected to the housing, and absorbing and dissipating the heat generated by the lamp board component.

[0010] Preferably, a plurality of fins are formed on the outer surface of the heat dissipation block. Thereby, the heat generated by the lamp board component can be effectively and quickly conducted to the fins for dissipation and heat release.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying out the Invention

[0012] For easy understanding of the present invention, the drawings and embodiments will be combined below to explain the present invention in detail. In the drawings, only partial embodiments are shown, not all embodiments of the present invention. The present invention can be realized in various different forms and is not limited to the embodiments described in the text. On the contrary, the purpose of providing these embodiments is to enable a clearer and more comprehensive understanding of the content disclosed by the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art on the premise of no effort for inventiveness are within the scope protected by the present invention.

[0013] Unless otherwise defined, all technical and scientific terms used in the text have the same meaning as commonly understood by those skilled in the art. The terms used in the specification of the present invention are for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0014] As shown in FIGS. 1 and 2, the projection device capable of direction adjustment provided by the present invention is suitable for being attached to a vehicle chassis, and together with a sensor and a circuit, it is controlled to automatically project an image onto the ground when the car door is opened and interrupt the projection of the image when the car door is closed. The projection device capable of direction adjustment includes a bracket unit 10 and a projection lamp unit 20. The bracket unit 10 further includes one base 101, two fixed brackets 102, and one movable bracket 103.

[0015] The base 101 is an element used to be fixed to the vehicle chassis 40 (as shown in FIG. 3), which is a plate-like body. At least one arc-shaped slot 1011 may be provided on the horizontal surface. Preferably, arc-shaped slots 1011 that are symmetric to each other are formed on the opposing planar surfaces on both sides. By passing the fixing screw 1013 through the arc-shaped slot 1011, it can be tightened and fixed to the vehicle chassis 40 (as shown in FIGS. 3 and 4). Also, based on the structural differences of the chassis of different vehicles, the base 101 can be rotated horizontally with the fixing screw 1013 not tightened (as shown in FIG. 6, that is, the fixing screw 1013 moves relatively along the arc-shaped slot 1011). After adjusting the direction of the base 101, the fixing screw 1013 can be tightened.

[0016] Note that screw holes 1012 are respectively provided on the opposing side surfaces of the base 101 and are used for the attachment of the fixing bracket 102.

[0017] As shown in FIG. 2, the two fixing brackets 102 are respectively fixed to the opposing sides of the base 101. The two fixing brackets 102 have appropriate lengths. At one end of the opposing surfaces, a first face gear 1021 is symmetrically formed respectively. A center hole 1022 is formed at the center of the first face gear 1021. A hole 1023 is formed at the other end of the fixing bracket 102. By passing the fixing screw 1024 through the hole 1023 and tightening it into the screw hole 1012 on the side of the base 101, the two fixing brackets 102 are respectively fixed to the opposing sides of the base 101.

[0018] As shown in FIG. 2, the movable bracket 103 has an appropriate length and has a pair of convex portions 1031 on both sides facing each other in one-piece molding. A second face gear 1032 is symmetrically formed on the pair of convex portions 1031. More specifically, the pair of second face gears 1032 are formed on the pair of convex portions 1031 in opposite directions to each other, and a screw hole 1033 is formed at the center of the second face gear 1032. The centers of the second face gear 1032 and the first face gear 1021 are connected by an adjustment element 1025.

[0019] Specifically, the adjustment element 1025 has a male screw (such as a screw or a bolt). When the pair of first face gears 1021 and the pair of second face gears 1032 mesh with each other in opposite directions, the adjustment element 1025 is passed through the center hole 1022 and tightened into the screw hole 1033 to complete the connection. Thus, as shown in FIGS. 4 and 5, when the adjustment element 1025 is tightened, the second face gear 1032 and the first face gear 1021 mesh with and fix to each other, making the movable bracket 103 unable to rotate relative to the fixed bracket 102.

[0020] When the adjustment element 1025 is loosened, the second face gear 1032 and the first face gear 1021 can be separated from each other. At this time, the movable bracket 103 can rotate relative to the fixed bracket 102, and the angle of the movable bracket 103 relative to the fixed bracket 102 can be adjusted.

[0021] As shown in FIG. 2, since the projection lamp unit 20 is used to connect to the movable bracket 103, it rotates with the rotation of the movable bracket 103 to adjust the direction, angle, and size of the projected image. Specifically, the projection lamp unit 20 includes a housing 201, a lens component 202, a lamp plate component 203, and a heat dissipation block 204. The housing 201 is a hollow housing, and one end thereof has a projection hole (the lower end of the housing 201 shown in FIG. 2, not shown). After the lens component 202 and the lamp plate component 203 are both assembled in the housing 201, the heat dissipation block 204 is covered and fixed to the housing 201.

[0022] The lens component 202 includes a modularized lens and an image sensor (not shown) which is a film having patterns, characters, etc. provided in the optical path of the lens. The lamp board component 203 includes a circuit board and a light-emitting element (e.g., LED) electrically connected to the circuit board. The circuit board is electrically connected to the vehicle power supply by a power cable 30. When energized, the light-emitting element projects a light beam, and the image of the image sensor is projected from the housing 201 through the lens component. Since both the lens component 202 and the lamp board component 203 are well-known technologies and not the technical features claimed by the present invention, further detailed description is omitted.

[0023] The heat dissipation block 204 is formed such that it has a plurality of fins on the outer surface, through holes 2041 are provided at four corners, and a plurality of screw holes 2042 are provided in the central region. After the lens component 202 and the lamp board component 203 are both mounted in the housing 201 and the heat dissipation block 204 covers the housing 201, the fixing screw 205 passes through the through hole 2041 and is tightened into the screw hole of the housing 201, whereby the heat dissipation block 204 and the housing 201 are fixed to each other. The movable bracket 103 is tightened into the screw hole 2042 of the heat dissipation block 204 after the fixing screw 1035 passes through the hole 1034 of the movable bracket 103, thereby completing the connection between the bracket unit 10 and the projection lamp unit 20. The heat generated when the light-emitting element of the lamp board component 203 emits light is conducted to the heat dissipation block 204 and can be dissipated by the plurality of fins formed thereon.

[0024] As shown in FIGS. 4 and 5, after the projection device of the present invention is attached to the vehicle chassis 40, by operating the adjustment element 1025, the projection lamp unit 20 can adjust the direction, angle, and size of the projected image. That is, when the adjustment element 1025 is loosened, the second face gear 1032 and the first face gear 1021 can be separated from each other. At this time, since the movable bracket 103 can rotate with respect to the fixed bracket 102, the angle of the movable bracket 103 and the projection lamp unit 20 with respect to the fixed bracket 102 can be adjusted. Then, by tightening the adjustment element 1025, the second face gear 1032 and the first face gear 1021 are engaged with each other to fix the adjusted direction and angle.

[0025] By adjusting the direction and angle of the projection lamp unit 20, the size of the projected image can be adjusted simultaneously. That is, when the projected image is perpendicular to the ground, the image is the smallest, and when the angle between the emitted light of the projection lamp unit 20 and the ground becomes smaller (i.e., the angle with the vertical line becomes larger), the image projected on the ground becomes larger. Therefore, the projection device of the present invention can be appropriately attached to the chassis of any model vehicle, and provides a convenient method for adjusting the direction, angle, and size of the projected image.

[0026] The above embodiments only show the preferred embodiments of the present invention. Although the description is specific and detailed, it should not be considered as a limitation of the scope of the claims of the present invention. It should be shown that those skilled in the art can make some modifications and improvements on the premise of not departing from the idea of the present invention, and they also belong to the protection scope of the present invention.

Explanation of Reference Numerals

[0027] 10 Bracket unit 101 Base 1011 Arc-shaped slot 1012 Screw hole 1013 Fixing screw 102 Fixed bracket 1021 First face gear 1022 Central hole 1023 holes 1024 fixing screws 1025 adjusting element 103 movable bracket 1031 convex part 1032 second face gear 1033 screw hole 1034 hole 1035 fixing screws 20 projection lamp unit 201 housing 202 lens component 203 lamp board component 204 heat dissipation block 2041 through hole 2042 screw hole 205 fixing screws 30 power cable 40 vehicle chassis

Claims

1. A projection device that can be adjusted in direction for attachment to a vehicle chassis, the projection device includes a bracket unit and a projection lamp unit, the bracket unit includes, a base for fixing to the vehicle chassis, two fixed brackets respectively fixed to opposite sides of the base, with first face gears symmetrically formed on the opposing faces, a pair of convex portions are formed on opposite sides, second face gears are symmetrically formed on the pair of convex portions, and an active bracket whose centers of the second face gear and the first face gear are connected by an adjustment element, the projection lamp unit is connected to the active bracket and can adjust the direction, angle, and dimension of projecting an image by rotating with the rotation of the active bracket, by operating the adjustment element, the second face gear and the first face gear mesh with each other, and the active bracket cannot be rotated relative to the fixed bracket, and also, by operating the adjustment element, the second face gear and the first face gear do not mesh with each other, and the active bracket can be rotated relative to the fixed bracket. A projection device that can be adjusted in direction for attachment to a vehicle chassis.

2. At least one arc-shaped slot is provided on the horizontal surface of the base, and a fixing screw passes through the arc-shaped slot to fix the base to the vehicle chassis. The projection device according to claim 1 that can be adjusted in direction for attachment to a vehicle chassis.

3. The first face gears are formed on the two fixed brackets so as to face each other, and the second face gears are formed on the pair of convex portions in opposite directions. The projection device according to claim 1 that can be adjusted in direction for attachment to a vehicle chassis.

4. A screw hole is formed at the center of the second face gear, a center hole is formed at the center of the first face gear, the adjustment element has a male screw, and when the adjustment element passes through the center hole and the male screw is tightened into the screw hole, the connection of the centers of the second face gear and the first face gear is completed. The projection device according to claim 3 that can be adjusted in direction for attachment to a vehicle chassis.

5. The projection lamp unit includes, a housing, a lens component provided in the housing and including a pixel element, A lamp plate component provided inside the housing, including a circuit board and a light-emitting element that is electrically connected to the circuit board and projects an image of the pixel element from the housing through the lens component with the generated light. A projection device capable of direction adjustment for being attached to the vehicle chassis according to claim 1, including a heat dissipation block that is connected and fixed to the movable bracket, connected to the housing, and absorbs and dissipates heat generated by the lamp plate component.

6. A projection device capable of direction adjustment for being attached to the vehicle chassis according to claim 5, wherein a plurality of fins are formed on an outer surface of the heat dissipation block.

Images