Decorative lamp

Abstract

To provide a lamp for decoration that can be mounted uniformly by one kind on a plurality of kinds of pipes differing in external diameter.SOLUTION: A lamp member 12 consists of a light emission part 18b and a trunk part 18a protruded from its back. A grommet 16 consists of a mount part 16b which has a lamp member insertion hole 16c for trunk part insertion bored and a grommet body 16a which is formed in an outer flange shape at a front end of the mount part 16b. A ring cover 14 is interposed between the light emission part 18b and grommet body 16a, and a back face 16g thereof which comes into contact with the grommet body 16a is formed on a cylindrical curved surface. A radius Rg of the grommet body 16a is set to larger than a radius rmin of a pipe P having the smallest diameter and smaller than a radius rmax of a pipe P having the largest diameter, and a radius Rr of a back face 14g of the ring cover 14 is set to smaller than the radius rmin of the pipe P having the smallest diameter.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a decorative lamp that is attached to a decorative frame member that is attached later to decorate a vehicle body. [Background technology]

[0002] A modification known as customization, in which various frame components F, such as high bars, multi bars, or low bars, are retrofitted around the driver's seat or loading platform of a truck to decorate the body, has long been practiced (see Figure 7).

[0003] Frame members F are assembled into any shape by bending pipes P of various lengths or thicknesses to fit the shape of the vehicle body, or by welding them together, and then attached to a specified position on the vehicle body. Note that frame members F that are attached to high places on the vehicle, such as on the roof of the driver's seat as shown in Figure 7, are called "high bars," frame members F that are attached to the vehicle's undercarriage are called "low bars," and all other frame members are called "multi-bars."

[0004] Customization using such frame components is carried out to enhance the design of the vehicle, and in order to further enhance the design, it is common to attach decorative lamps called daytime running lights to the frame components (Non-Patent Documents 1-2).

[0005] Here, to briefly explain an example of the structure of a conventional decorative lamp used for vehicle customization, a conventional decorative lamp 1 is roughly composed of a lamp member 2 and a grommet 3, as shown in FIG.

[0006] The lamp member 2 has a light-emitting portion 2b and a cylindrical body portion 2a provided at the rear end of the light-emitting portion 2b. A board 2c is housed inside the body portion 2a, and an LED serving as a light source 2d and a power supply line 2e are electrically connected to the board 2c. The opposite end of the power supply line 2e is led out from the rear end side of the body portion 2a to the outside. The body portion 2a is filled with epoxy resin, which fixes the board 2c inside the body portion 2e. The back surface 2h of the light-emitting portion 2b is a ring-shaped flat surface.

[0007] The grommet 3 has a circular grommet body 3a and a cylindrical mounting portion 3b provided on the back side thereof, and is integrally formed as a whole from soft rubber. A hole provided in the center of the grommet 3 is a lamp member mounting hole 3c. The back side (contact surface with the pipe P) 3h of the grommet body 3a is a ring-shaped flat surface.

[0008] When attaching a conventional decorative lamp 1 to a pipe P, a mounting hole is drilled at any position on the pipe P (where the decorative lamp 1 is to be attached), and the mounting portion 3b of the grommet 3 is pushed into this mounting hole to attach the decorative lamp 1.

[0009] Then, insert the lamp member 2 into the lamp member mounting hole 3c with the body 2a at the front and push it firmly into the back. The outer diameter of the body 2a is set slightly larger than the inner diameter of the lamp member mounting hole 3c of the grommet 3, and by pushing (pressing) the body 2a into the lamp member mounting hole 3c, the mounting portion 3b of the grommet 3 is expanded in the radial direction, so that the decorative lamp 1 is attached to the pipe P without any rattling. [Prior art documents] [Patent documents]

[0010] [Non-Patent Document 1] "Euro Style Tracks", Geibunsha Co., Ltd., December 24, 2019, p.154 [Non-Patent Document 2] Ponpare Mall, "Truck LED Spotlight 12V / 24V Compatible", [online], Kakura Co., Ltd., [Searched on December 23, 2020], Internet<URL:https: / / store.ponparemall.com / kokontouzaiya / goods / tr410_412 / > Summary of the Invention [Problem to be solved by the invention]

[0011] The pipes P that make up the frame members F vary in size, from the smallest diameter (40 mm) to the largest diameter (60 mm), and pipes of different diameters may be mixed within a single frame member F.

[0012] This problem is particularly noticeable when attaching the decorative lamp 1 to a small diameter pipe P. Since the back surface 3h of the grommet body 3a is flat while the outer peripheral surface of the pipe P is a cylindrical curved surface, as shown in FIG. 9, a gap X is generated between both wing portions of the outer peripheral edge of the grommet 3 and the surface of the pipe P, which detracts from the aesthetic appearance.

[0013] Of course, the above problem could be solved by providing decorative lamps that fit all pipe diameters, but this would create a new problem of complicated inventory management.

[0014] The present invention has been made in consideration of such conventional problems, and its object is to provide a decorative lamp that can be uniformly attached without gaps to multiple types of pipes with different outer diameters. [Means for solving the problem]

[0015] The invention described in claim 1 is a decorative lamp 10 having a lamp member 12 composed of a light-emitting portion 18b and a body portion 18a protruding from a back surface of the light-emitting portion 18b, a mounting portion 16b having a lamp member insertion hole 16c into which the body portion 18a is inserted and being inserted into a mounting hole H drilled in a pipe P, and a grommet body 16a formed in an outer flange shape at the front end of the mounting portion 16b and having a cylindrically curved surface as a whole, and a grommet 16 for holding the lamp member 12 in the mounting hole H, and a ring cover 14 interposed between the light-emitting portion 18b and the grommet body 16a, which comes into contact with the light-emitting portion 18b and the grommet body 16a when the body portion 18a of the lamp member 12 is pressed into the lamp member insertion hole 16c, and whose back surface 16g that comes into contact with the grommet body 16a is formed into a cylindrically curved surface, and which presses the grommet body 16a against the outer circumferential surface of the pipe P, The grommet 16 is entirely made of a soft material. The radius Rg of the curved surface of the grommet body 16a is the radius r min The radius r of the largest pipe P max It is set smaller, The radius Rr of the back surface 14g of the ring cover 14 that contacts the grommet body 16a is the radius r min The feature of this method is that it is set smaller than the conventional method.

[0016] The invention recited in claim 2 is characterized in that "a flange portion 16e that covers the outer edge of the ring cover 14 is formed on the front outer circumferential edge portion of the grommet body 16a." Effect of the Invention

[0017] In the present invention, one type of decorative lamp can be installed without any gaps between the pipes regardless of whether the pipes are small or large in diameter, eliminating any awkwardness when installed, creating a natural appearance like genuine parts, and achieving the effect of significantly improving the aesthetics. [Brief description of the drawings]

[0018] [Figure 1]1 is an exploded perspective view showing a decorative lamp according to the present invention; [Diagram 2] FIG. 2 is a cross-sectional view of the lamp member of FIG. [Diagram 3] FIG. 2 is a cross-sectional view of the ring cover of FIG. [Figure 4] FIG. 2 is a cross-sectional view of the grommet of FIG. [Diagram 5] 1A and 1B are cross-sectional views of a decorative lamp according to the present invention mounted on a small diameter pipe, in which (A) shows the state immediately before mounting is complete, and (B) shows the state after mounting is complete. [Figure 6] FIG. 2 is a diagram showing a state in which the decorative lamp according to the present invention is attached to a large diameter pipe. [Figure 7] FIG. 13 is a diagram showing a state in which a decorative lamp is used. [Figure 8] FIG. 1 is a diagram showing a conventional decorative lamp. [Figure 9] FIG. 1 is a diagram showing a conventional decorative lamp attached to a pipe. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] The present invention will be described below with reference to the drawings. Fig. 1 is an exploded perspective view of a decorative lamp 10 according to the present invention. The decorative lamp 10 according to the present invention is mainly composed of a lamp member 12, a ring cover 14, and a grommet 16.

[0020] The lamp member 12 is generally composed of a lamp body 18, a lid member 20, a substrate 22, a light source 24 such as an LED, and a power supply line 26 (see FIGS. 1 and 2).

[0021] The lamp body 18 has a trunk portion 18a and a light emitting portion 18b, which are integrally formed from a colorless and transparent synthetic resin (polycarbonate in this embodiment). Note that the synthetic resin used for the lamp body 18 is not limited to a colorless and transparent resin, and a colored transparent resin such as red, yellow, or blue may also be used.

[0022] The body 18a is a cylindrical portion that is narrower in diameter than the light emitting portion 18b, and a pair of retaining pieces 18c are formed in opposing positions on the central portion of the outer circumferential surface thereof.

[0023] A light emitting portion 18b is provided at one axial end (front end) of the body portion 18a. The front surface of the light emitting portion 18b is formed in a hemispherical shape, and the outer diameter of the connection portion with the body portion 18a is set to be larger than the diameter of the body portion 18a. A step portion 18e formed at the boundary portion between the body portion 18a and the light emitting portion 18b becomes the contact surface with the ring cover 14 described later. The contact surface (step portion 18e) is formed in a ring-shaped flat surface.

[0024] The front surface of the light-emitting section 18b is dome-shaped (hemispherical) as described above, with a smooth outer surface, and diffusion grooves 18d formed in a stepped, concentric pattern on the inner surface, which acts as a lens that diffuses light.

[0025] A closure member 20 is attached to the other axial end of the lamp body 18. A round hole 20a is formed in the center of the closure member 20, and a butt plug 28 is attached to this round hole 20a. A hole 28a for inserting a power supply line is formed in the butt plug 28.

[0026] A substrate 22 is housed inside the body 18a, and a light source 24 such as an LED is attached to a disk-shaped light source attachment portion 22a provided at the front end of the substrate 22. A power supply line 26 is electrically connected to the substrate 22, and the opposite end of the power supply line 26 is led out to the outside through a hole 28a in the butt plug 28 described above. The light source 24 is located in the center of the light-emitting portion 18b.

[0027] The ring cover 14 is interposed between the lamp member 12 and the grommet 16 described later, and serves both as a "pressing member" that presses the grommet 16 toward the pipe P when the lamp member 12 is pushed into the pipe P, and as a "decorative member" of the decorative lamp 10, and is configured as a circular ring-shaped member made of general-purpose plastic (ABS resin is used in this embodiment).

[0028] The inner diameter of the lamp member insertion hole 14a provided in the center of the ring cover 14 is set to be slightly larger than the outer diameter of the trunk part 18a of the lamp body 18 (see Figs. 1 and 3). The lamp member insertion hole 14a has cutouts 14b formed in positions corresponding to the retaining pieces 18c formed on the outer peripheral surface of the trunk part 18a to prevent interference with the retaining pieces 18c during insertion.

[0029] The edge of the lamp member insertion hole 14a of the ring cover 14 is carved in a stepped shape on the front side, and the step 18e of the light emitting portion 18b of the lamp body 18 described above fits into this stepped portion 14c.

[0030] A fitting groove 14e is formed in a rear surface 14g of the ring cover 14 (the surface that comes into contact with the grommet 16) near the notch 14b.

[0031] The back surface 14g of the ring cover 14 is a cylindrical concave curved surface that is concavely curved toward the front surface. To explain this in detail, when the ring cover 14 is cut in the vertical direction (the direction perpendicular to the axial direction of the pipe P when the decorative lamp 10 is attached to the pipe P), the cross-sectional shape of the back surface 14g is a circular arc curve that is concavely curved toward the front surface, and the radius Rr of the cross-sectional shape is the radius r of the pipe P with the smallest diameter. min The curve of the cross section of the back surface 14g is steeper than the curve of the outer circumferential surface of the pipe P with the smallest diameter.

[0032] The grommet 16 is for mounting the lamp body 18 to the pipe P and has a grommet body 16a and a mounting portion 16b, which are integrally formed from soft resin (see Figs. 1 and 4). A lamp member insertion hole 16c is formed in the center of the grommet 16, which connects the front surface of the grommet body 16a with the rear surface of the mounting portion 16b. The inner diameter of the lamp member insertion hole 16c is set to be slightly smaller than the outer diameter of the trunk portion 18a of the lamp body 18.

[0033] The grommet body 16a is an annular portion formed in a wavy outer flange shape at the front end portion of the mounting portion 16b, and its outer diameter is set to be slightly larger than that of the ring cover 14.

[0034] The front surface 16d of the grommet body 16a is a cylindrical convex curved surface that fits along the back surface 14g of the ring cover 14, and a raised flange 16e is formed on the outer periphery. This flange 16e functions as a "screen" that hides the outer periphery of the ring cover 14, and is formed to a size that covers the outer periphery of the ring cover 14. In other words, the entire circumference of the outer periphery of the ring cover 14 fits into the ring-shaped groove 16j between the flange 16e and the front surface 16d of the grommet body 16a.

[0035] Further, anti-rotation projections 16f are formed on the front surface 16d of the grommet body 16a at positions facing each other across the lamp member insertion hole 16c, and at positions corresponding to the fitting grooves 14e of the back surface 14g of the ring cover 14.

[0036] The back surface 16g of the grommet body 16a (the surface that comes into contact with the outer circumferential surface of the pipe P) is a cylindrical concave curved surface, the thickness of the grommet body 16a is uniform, and as described above, the grommet body 16a is in a wavy ring shape. To explain this in detail, when the grommet 16 is cut in the vertical direction (the direction perpendicular to the axial direction of the pipe P when the decorative lamp 10 is attached to the pipe P), the cross-sectional shape of the back surface 16g is a circular arc curve that is concavely curved forward, and its radius Rg is the radius r of the pipe P with the smallest diameter. min The radius r of the largest pipe P max In other words, the radius Rg is set to be intermediate between the two.

[0037] The mounting portion 16b is provided on a back surface 16g of the curved grommet body 16a. The entire circumference of an outer peripheral edge portion 16h of the grommet body 16a is a thin piece compared to the inner portion on the mounting portion 16b side, and extends rearward from the back surface 16g of the grommet body 16a.

[0038] The mounting portion 16b is a cylindrical portion, and a locking piece 16i is formed around the entire circumference of the tip portion of the outer circumferential surface. The cross-sectional shape of the locking piece 16i is formed into a wedge shape that tapers toward the tip. The portion between the back surface 16g of the grommet body 16a and the locking surface of the locking piece 16i, where the mounting hole H of the pipe P fits, is formed to be larger than the thickness of the pipe P.

[0039] Next, a method for mounting the decorative lamp 10 according to the present invention to a pipe P will be described. Pipes P come in large and small diameters. A mounting hole H is drilled at any position (where the decorative lamp 10 is to be mounted) in the pipes P of various diameters. The inner diameter of the mounting hole H is set to be approximately equal to (or slightly smaller than) the outer diameter of the mounting portion 16b of the grommet 16 (the portion into which the mounting hole H of the pipe P fits).

[0040] The grommet 16 is inserted while being rotated so that the curved surface of the back surface 16g of the grommet body 16a fits along the curved outer surface of the pipe P, and the mounting portion 16b of the grommet 16 is inserted into the mounting hole H of the pipe P. The outer diameter of the locking piece 16i portion is larger than the inner diameter of the mounting hole H, but since the entire grommet 16 is formed from a soft synthetic resin (rubber), the entire mounting portion 16b is bent so that the locking piece 16i can be pushed into the mounting hole H. This completes the attachment of the mounting portion 16b to the mounting hole H. Note that when the locking piece 16i is pushed into the mounting hole H, the locking piece 16i functions as a retainer.

[0041] Next, the ring cover 14 is placed against the front surface 16d of the grommet 16 so that the anti-rotation projection 16f on the front side of the grommet 16 fits into the fitting groove 14e on the rear surface of the ring cover 14, and the lamp member 12 is pushed into the lamp member insertion hole 14a and the lamp member insertion hole 16c from the body part 18a side of the lamp body 18. At this time, the above-mentioned pushing operation is performed while adjusting the angle of the lamp member 12 so that the removal prevention piece 18c of the lamp body 18 coincides with the notch 14b of the ring cover 14. During this pushing operation, the removal prevention piece 18c passes through the notch 14b of the ring cover 14 and passes through the inner surface of the mounting part 16b of the grommet 16 while compressing it (FIG. 5(A)), and finally engages with the insertion end of the mounting part 16b of the grommet 16, fixing the lamp member 12 to the grommet 16 (FIG. 5(B)).

[0042] Here, the behavior of the grommet body 16a when the ramp member 12 is pushed into the pipe P is different depending on whether the pipe P has a small diameter or a large diameter, so each case will be described separately. First, the case where the ramp member 12 is pushed into the pipe P with a small diameter will be described.

[0043] While performing the above-mentioned alignment, insert the body 18a of the ramp member 12 into the ramp member insertion hole 14a of the ring cover 14 and the ramp member insertion hole 16c of the grommet 16. Then, the step 18e of the ramp member 12 presses the step-like portion 14c of the ring cover 14, and the ring cover 14 and the grommet body 16a of the grommet 16 become one body, and the mounting portion 16b is pressed into the mounting hole H of the pipe P.

[0044] The radius Rg of the back surface 16g of the grommet body 16a is the radius r min Since the gap X is set larger than the gap X, when the base of the back surface 16g of the grommet body 16a abuts against the surface of the pipe P just before the insertion of the lamp member 12 is completed, as shown in FIG. 5(A), a gap X is generated between both wing portions of the outer peripheral edge portion 16h of the grommet body 16a and the surface of the pipe P.

[0045] Here, the radius Rr of the back surface 14g of the ring cover 14 that contacts the grommet 16 is the radius r min Since the ramp member 12 is further pressed in in this state, the tip of the outer circumferential edge 14f of the ring cover 14 is pressed against the step 18e of the ramp member 12 and presses against the surface of the outer circumferential edge 16h of the grommet 16. This pressing point is indicated by S.

[0046] Since the entire grommet 16 is made of soft rubber, the portion (pressure point S) in contact with the outer circumferential edge 14f of the ring cover 14, i.e., the outer circumferential edge 16h of the grommet body 16a, bends toward the pipe P, and the entire circumference of the outer circumferential edge 16h of the grommet body 16a comes into contact with the surface of the pipe P (see FIG. 5(B)). This allows the decorative lamp 10 to be attached to a small-diameter pipe P without any gaps.

[0047] In addition, a flange portion 16e is formed on the front surface of the outer peripheral edge portion 16h of the grommet 16, so that when the tip of the outer peripheral edge 14f of the ring cover 14 fits into the ring-shaped groove 16j on the front surface of the outer peripheral edge portion 16h, this flange portion 16e acts as a "screen" to hide the outer peripheral edge of the ring cover 14.

[0048] Next, a case where the decorative lamp 10 is attached to a large diameter pipe P will be described with reference to FIG. 6. In this case, the radius Rg of the grommet body 16a is set to the radius r max is set smaller.

[0049] Therefore, when the ramp member 12 is pushed into the ramp member insertion hole 16c of the grommet 16 as described above, the entire circumference of the outer peripheral edge portion 16h of the grommet body 16a abuts against the surface of the pipe P, allowing the grommet 16 to be attached to the surface of the pipe P without any gaps.

[0050] In this way, the decorative lamp 10 of the present invention can be attached without any gaps between the pipe P and the lamp, regardless of whether the pipe P has a small or large diameter. This eliminates any awkwardness when attached, providing the same natural appearance as genuine parts, and achieving the effect of greatly improving the aesthetic appearance. [Explanation of symbols]

[0051] 1: conventional decorative lamp, 2: lamp member, 2a: body, 2b: light-emitting portion, 2c: board, 2d: light source, 2e: power supply line, 2f: lid member, 2g: power supply line insertion hole, 2h: rear surface of light-emitting portion, 3: grommet, 3a: grommet body, 3b: mounting portion, 3c: lamp member mounting hole, 3h: rear surface of grommet body, 10: decorative lamp, 12: lamp member, 14: ring cover, 14a: lamp member insertion hole, 14b: notch, 14c: stepped portion, 14e: fitting groove, 14f: outer periphery, 14g: rear surface, 16: grommet, 16a: grommet body, 16b: mounting portion, 16c: lamp member insertion hole, 16 d: front surface, 16e: flange, 16f: anti-rotation projection, 16g: rear surface, 16h: outer periphery (of grommet body 16), 16i: locking piece, 16j: ring-shaped groove, 18: lamp body, 18a: barrel, 18b: light-emitting part, 18c: anti-removal piece, 18d: diffusion groove, 18e: step (as abutment surface), 20: closure member, 20a: round hole, 22: base plate, 22a: light source mounting part, 24: light source, 26: power supply line, 28: butt plug, 28a: hole (for inserting power supply line), F: frame member, H: mounting hole, P: pipe, Rg: radius (of arc-shaped curve on rear surface of grommet), Rr: radius (of arc-shaped curve on rear surface of ring cover), r max : radius of the largest pipe, r min : radius of the smallest diameter pipe, S: pressing point, X: gap

Claims

1. A lamp member including a light emitting portion and a body portion protruding from a rear surface of the light emitting portion; a grommet that holds the lamp member in the mounting hole, the grommet being composed of a mounting portion having a lamp member insertion hole into which the body portion is inserted and a grommet body that is formed in a front end of the mounting portion in an outer flange shape and has a cylindrical curved surface as a whole; and a ring cover that is interposed between the light emitting part and the grommet body, that comes into contact with the light emitting part and the grommet body when a body of the lamp member is pressed into the lamp member insertion hole, that has a back surface that comes into contact with the grommet body formed into a cylindrical curved surface, and that presses the grommet body against an outer circumferential surface of the pipe, The grommet is entirely made of a soft material, The radius of the curved surface of the grommet body is set to be larger than the radius of the smallest diameter pipe and smaller than the radius of the largest diameter pipe, A decorative lamp characterized in that the radius of the back surface of the ring cover that contacts the grommet body is set to be smaller than the radius of a pipe with a minimum diameter.

2. 2. The decorative lamp according to claim 1, wherein a flange is formed on the outer periphery of the front surface of the grommet body to cover the outer edge of the ring cover.

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