JP7117187B2 - Light pipe, marker lamp and manufacturing method thereof - Google Patents

Description

TECHNICAL FIELD The present invention relates to an optical conduit, a marker lamp, and a manufacturing method thereof for use in railway vehicles.

The head structure and the tail structure of the railroad vehicle are provided with marker lights for indicating the head and the tail of the railroad vehicle. For example, Patent Literature 1 discloses a marker light configured integrally with a cab equipment unit. This marker light is composed of a headlight, a taillight, and a housing, and the housing is integrated with the cab equipment unit, and the headlight and taillight are mounted in the housing.
In addition, generally, the marker lamp is provided with a front and rear lamp glass, and this front and rear lamp glass is transparent only in a portion through which the light of the headlamp and the tail lamp is transmitted, and in other portions so as not to transmit the light. , black masking is applied.

JP-A-2002-283910

By the way, the design of railcars in recent years has been diversifying, and the shape of the indicator light, which is a design element at the head of the car, has been demanded. However, with the structure of a conventional marker lamp, it may be difficult to cope with the diversification of designs without impairing productivity, and there is a need to reconsider the structure.

The present invention has been made in view of the above problems, and its object is to provide an optical conduit, a marker lamp, and a method of manufacturing the same, which are capable of realizing various designs without impairing productivity. is to provide

(Aspect of invention)
The following aspects of the invention are illustrative of aspects of the invention, and are described in sections to facilitate understanding of the various components of the invention. The following items do not limit the technical scope of the present invention, and while considering the best mode for carrying out the present invention, some of the components of each item are replaced, deleted, or further An aspect in which other components are added can also be an aspect of the present invention.

(1) A light pipe for housing a headlight and a taillight of a railroad vehicle, comprising a headlight tube that guides light emitted from the headlight to the outside, and a light tube that guides the light emitted from the taillight to the outside. A taillight tube and a mounting frame for holding the headlight tube and the taillight tube are configured separately, and the outer peripheral surface of the headlight tube and the outer peripheral wall of the taillight tube are formed by the mounting frame. a light pipe (claim 1) that is painted to be a different color than the

In the optical conduit of this section, holding the headlight tube that guides the light emitted from the headlight to the outside, the taillight tube that guides the light emitted from the taillight to the outside, and the headlight tube and the taillight tube The mounting frame is configured separately, and by assembling these, it is configured as a light conduit that guides the light emitted from the headlight and the taillight to the outside. In addition, since the headlight tube, the taillight tube, and the mounting frame are configured separately, each member can be molded separately, thereby avoiding complication of the molding die structure.

Furthermore, in the light pipe of this item, the outer peripheral surface of the headlight tube and the outer peripheral wall of the taillight tube are painted in a different color from the mounting frame, so that various aesthetic appearances of the light pipe can be realized. become a thing. In addition, since the headlight tube, taillight tube, and mounting frame are constructed separately, if each member is individually painted, the paint will reach even the finer points of each member. It will improve quality. Moreover, even if masking work is performed on portions of different colors during the painting work, each member can be masked, so that the burden of the painting work can be reduced and the working efficiency can be improved.

(2) In item (1) above, the mounting frame includes a housing composed of a bottom plate and wall plates surrounding the bottom plate, and an opening is formed in the housing, and the headlight tube and the taillight are provided in the opening. A light tube is inserted, and the joints between the mounting frame and the headlight tube and/or the taillight tube are continuously connected at least partially across a valley fold line of a narrow angle. A conduit (claim 2).

In the optical conduit of this section, the mounting frame includes a housing composed of a bottom plate and wall plates surrounding the bottom plate, an opening is formed in the housing, and a headlight tube and a taillight tube are inserted into the opening to The lighting tube and the taillight tube are housed in a space surrounded by the bottom plate and the wall plate surrounding the bottom plate. Also, joints between the mounting frame and the headlight tube and/or the taillight tube are continuously connected at least partly across the narrow-angled valley fold line. Even if this configuration is adopted, by separately painting the mounting frame, the headlight tube, and the taillight tube, when these are combined, the part near the valley fold line of the narrow angle is also painted. It ensures the required coating quality and allows for a variety of aesthetic appearances of the light pipe.

(3) In item (2) above, the headlight tube and the taillight tube have tubular wall portions, and the wall plate or the bottom plate of the housing of the mounting frame, the headlight tube and the /or a light pipe connected to said tubular wall of said taillight tube via said junction (claim 3).

In the light pipe of this section, the headlight tube and the taillight tube have a tubular wall so that the light emitted from the headlight and the taillight is reflected by the inner wall surface of the tubular wall and guided to the outside. It will be taken. In addition, the wall plate or bottom plate of the housing of the mounting frame and the tubular wall portion of the headlight tube and/or the taillight tube are connected via joints to form the headlight tube and the taillight tube. is reliably held on the mounting frame. In addition, the headlight tube and the taillight tube form a protruding shape that exerts a sense of presence in the space surrounded by the bottom plate and wall plate of the mounting frame, thereby adding diversity to the design of the marker light. becomes.

(4) In the item (2) or (3) above, the joint portion includes a mating portion provided in the mounting frame and the headlight tube and/or the taillight tube. A light pipe (claim 4).

In the optical waveguide according to this section, the cutout portion forms a cutout surface by complementarily notching the abutment portion of the members, and when viewed in cross section of the cutout portion, the cutout surface is bent in a crank shape. The mating ensures a sufficient bonding area to ensure sealing and/or adhesion of the butted portion. Further, by setting the thickness of the butted member to be the same as that of the general portion of the member, unnecessary increase in thickness can be prevented. Then, the mounting position of the headlight tube and/or the taillight tube with respect to the mounting frame can be easily determined, and the mounting frame and the headlight tube and/or the taillight tube can be easily and reliably connected. become a thing.

(5) In the above item (4), the optical conduit includes an adhesive layer that covers the cutout portion from the outside of the bottom plate and/or the wall portion of the mounting frame (claim 5).

In the light pipe of this item, an adhesive layer covering the intermittent part is included from the outside of the bottom plate and/or wall part of the mounting frame, so that the mounting frame and the headlight tube and/or the taillight tube The intermittent joint is securely fixed. As described above, the intermittent portion secures a sufficient bonding area to secure the airtightness and/or adhesion of the butted portion, and the shape of the intermittent portion ensures the positioning of the members with each other. This will reduce the amount used. Furthermore, the joint between the mounting frame and the headlight tube and/or the taillight tube has a notch structure, that is, the facet of the notch is bent like a crank in a cross-sectional view of the notch. Compared to a simple butting structure, the path from the outside of the bottom plate and/or wall of the mounting frame to the inside of the mounting frame is long. As a result, even if the adhesive is applied from the outside of the bottom plate and/or wall of the mounting frame, it is difficult for the adhesive to penetrate from the joint to the inside of the mounting frame, that is, the portion that affects the appearance of the signal lamp. , to avoid spoiling the appearance.

(6) The light pipe according to any one of (1) to (5) above, the headlight and the taillight housed in the light pipe, and fixed to a flange formed on the wall portion of the mounting frame. and transparent headlight glass (Claim 6).

In the indicator light of this section, the light pipe, the headlight, the taillight, and the headlight glass are integrated as a unit. In addition, since the front tail light glass is transparent, the shapes realized by the light pipes in items (1) to (5) above can be seen through the front tail light glass. It will be realized.

(7) A method of manufacturing a light pipe for housing a headlight and a taillight of a railway vehicle, comprising: a headlight tube that guides light emitted from the headlight to the outside; A taillight tube leading to the outside and a mounting frame for holding the headlight tube and the taillight tube are separately formed, and the outer peripheral surface of the headlight tube and the taillight tube are formed separately . A method for manufacturing a light pipe , wherein the outer peripheral wall is painted in a color different from that of the mounting frame (claim 7).

(8) In the item (7) above, the mounting frame is formed with a housing composed of a bottom plate and a wall plate surrounding the bottom plate, an opening is formed in the housing, and the headlight tube and the tail are formed in the opening. A light pipe into which a light tube is inserted to continuously connect the mounting frame and the headlight tube and/or the taillight tube in a manner that at least partially sandwiches a valley fold line with an included angle. A manufacturing method (claim 8).

(9) In item (8) above, the headlight tube and the taillight tube have tubular wall portions, and the wall plate or the bottom plate of the housing of the mounting frame, the headlight tube and/or the Alternatively, a method of manufacturing a light pipe that connects the tubular wall portion of the tail light tube via the joint portion (Claim 9).

(10) A method of manufacturing a light pipe according to item (8) or (9) above, wherein as the joining portion, a gap is formed between the mounting frame and the headlight tube and/or the taillight tube. (Claim 10).

(11) A method of manufacturing an optical pipe according to the item (10), wherein the cutout portion is covered with an adhesive layer from the outside of the bottom plate and/or the wall portion of the mounting frame (claim 11).

(12) A sign in which a headlight and a taillight are housed in the light pipe according to any one of items (7) to (11) above, and a transparent front and taillight glass is fixed to a flange formed on the wall portion of the mounting frame. A method for manufacturing a lamp (Claim 12).

In the method of manufacturing the optical pipe described in items (7) to (11), the same effects as those obtained by the optical pipes described in items (1) to (5) are obtained.
Further, in the method of manufacturing the marker lamp of the above item (12), the same effect as that of the marker lamp of the above item (6) can be obtained.

ADVANTAGE OF THE INVENTION By being comprised as mentioned above, this invention can provide the optical pipe which can respond to realization of various designs, a marker lamp, and its manufacturing method, without impairing productivity.

1 is a schematic perspective view of a head portion of a railway vehicle provided with a marker light according to one embodiment of the present invention; FIG. FIG. 2 is an exploded perspective view of the marker lamp shown in FIG. 1; 3 is a rear perspective view of a mounting frame, a headlight tube, a taillight tube, a decorative light tube, and a front and taillight glass that constitute the marker light shown in FIG. 2. FIG. 4 is an exploded view of a mounting frame, a headlight tube, a taillight tube, a decorative light tube, and a front and taillight glass that constitute the marker light shown in FIG. 3; FIG. FIG. 4 is a schematic cross-sectional view taken along line AA shown in FIG. 3; 6 is an enlarged view of the X portion shown in FIG. 5; FIG. It is a figure of the attachment frame shown in FIG. 2, (a) is a front view of an attachment frame, (b) is a top view of an attachment frame. It is a figure of the headlight tube shown in FIG. 2, (a) is a front view of a headlight tube, (b) is a top view of a headlight tube. FIG. 9 is a cross-sectional view of the headlamp tube shown in FIG. 8, where (a) is a cross-sectional view taken along line BB shown in FIG. 8(a), and (b) is shown in FIG. 8(b); FIG. 2 is a cross-sectional view taken along line CC; It is a figure of the taillight tube shown in FIG. 2, (a) is a front view of a taillight tube, (b) is a top view of a taillight tube. FIG. 11 is a cross-sectional view of the taillight tube shown in FIG. 10, where (a) is a cross-sectional view along line DD shown in FIG. 10 (a), and (b) is E shown in FIG. 10 (b). - It is a cross-sectional view along the E line. It is a figure of the decorative lamp tube shown in FIG. 2, (a) is a front view of a decorative lamp tube, (b) is a top view of a decorative lamp tube. FIG. 12 is a cross-sectional view of the decorative lamp tube shown in FIG. 12, (a) is a cross-sectional view taken along line FF shown in FIG. 12 (a), and (b) is a G shown in FIG. 12(c) is a cross-sectional view along line HH shown in FIG. 12(b); FIG. FIG. 2 is a flow chart diagram of a method of manufacturing the light pipe and indicator lamp shown in FIG. 1;

1 to 13, the construction of a marker lamp having a light pipe according to an embodiment of the present invention will be described in detail below.
A marker light 1 according to an embodiment of the present invention is installed at a head portion 5 and a rearmost portion of a railroad vehicle 3 (FIG. 1 shows a head portion 5 of a railroad vehicle 3 equipped with a marker light 1 . ). The marker lamp 1 comprises a headlamp 11, a tail lamp 13, a decorative lamp 15, an optical conduit 17, and a front and tail lamp glass 19, as shown in FIG.

Referring to FIG. 2, the headlight 11 is a light that illuminates the direction of travel, and is fixed to the structure of the head portion 3 (not shown). The tail light 13 is a light that marks the end of the railroad vehicle 3, and is fixed to the structure of the head portion 3 (not shown). The ornamental light 15 is a light for improving the design of the marker light 1, and is fixed to the structure of the head portion 3 (not shown).

The light pipe 17 is composed of a mounting frame 21 , a headlight tube 23 , a taillight tube 25 and a decorative light tube 27 . The mounting frame 21, the headlight tube 23, the taillight tube 25, and the decorative light tube 27 are configured separately. 27 to form an integrated light pipe 17 . In the illustrated example, when the headlight tube 23, the taillight tube 25, and the decorative light tube 27 are assembled to the mounting frame 21, the decorative light tube 27 closer to the center of the vehicle body is arranged to protrude most forward from the bottom plate 29 of the mounting frame 21. , and the headlight tube 23 and the taillight tube 25 are arranged so that the projection amount of the bottom plate 29 of the mounting frame 21 becomes smaller in this order (see FIG. 2). Also, the mounting frame 21, the headlight tube 23, the taillight tube 25 and the decorative light tube 27 are painted in different colors. Specifically, at least a portion of the headlight tube 23, the taillight tube 25, and the decorative light tube 27 is painted gold, and the other portions are painted black. The surface of the mounting frame 21 is painted black.

The mounting frame 21 includes a housing 32 composed of a bottom plate 29 and a wall plate 31 surrounding the bottom plate 29 (see FIGS. 3, 4 and 7), and a space 33 formed by the bottom plate 29 and the wall plate 31. A headlight tube 23, a taillight tube 25, and a decorative light tube 27 are accommodated in (see FIGS. 2 and 7(a)). The wall plate 31 of the housing 32 of the mounting frame 21 is formed with a flange 34 that extends from the end to the outside of the mounting frame 21 (in this embodiment, the outer edge of the flange 34 has a substantially rectangular shape when viewed from the front). ing). Openings 35 and 37 are formed in the housing 32 . Specifically, a plurality of openings 35 (three in the illustrated example) are formed in the bottom plate 29 . The opening 35 includes an opening 35a through which the headlight tube 23 is inserted, an opening 35b through which the taillight tube 25 is inserted, and an opening 35c through which the decorative light tube 27 is inserted. At least a part of the opening range of the opening 35a extends to the boundary between the bottom plate 29 and the wall plate 31, that is, the corner portion of the bottom plate 29 and the wall plate 31 in FIG. At least a part of the opening range of the opening 35b extends to the boundary between the bottom plate 29 and the wall plate 31, that is, the upper and lower corners of the bottom plate 29 and the wall plate 31 in FIG. At least a part of the opening range of the opening 35c extends to the boundary between the bottom plate 29 and the wall plate 31, that is, the upper and lower corners of the bottom plate 29 and the wall plate 31 in FIG. A plurality of notch openings 37 are formed in the wall plate 31 by partially notching the wall plate 31 . The cutout opening 37 is formed so as to be connected to a cutout opening 37a that is notched so as to be connected to the opening 35a for inserting the headlight tube 23, and an opening 35b for inserting the taillight tube 25. It includes a pair of notched openings 37b and a pair of notched openings 37c which are notched so as to be connected to the opening 35c for inserting the decorative lamp tube 27 (see FIG. 4).

On the surface opposite to the bottom surface of the bottom plate 29 when viewed from the front (rear surface) and the outer wall plate 31 of the wall plate 31, the second joints 55 ( 8, 10 and 12 to be described later) are formed (see FIGS. 4 and 7). Specifically, when the headlight tube 23 , the taillight tube 25 and the decorative light tube 27 are attached to the mounting frame 21 , the first joint portion 39 is connected to the headlight tube 23 and the taillight tube 23 on the back surface of the bottom surface of the bottom plate 29 . The thickness of the portion where the light tube 25 and the decorative light tube 27 are butted and the portion of the outer wall surface of the wall plate 31 where the headlight tube 23, the taillight tube 25 and the decorative light tube 27 are butted are made thin. It has a notched, so-called intermittent structure. A cutout portion 41a that abuts against the cutout portions 57 and 59 (described later, see FIG. 8) of the headlight tube 23, and the cutout portions 77 and 79 of the taillight tube 25 (described later, see FIG. 10). ), and a missing portion 41c that abuts against the missing portions 95 and 97 (described later, see FIG. 12) of the decorative lamp tube 27 . The respective cutout portions 41a, 41b, 41c form cutout surfaces 43a, 43b, 43c bent in a crank shape in a cross-sectional view. The cutout portion 41a is continuously provided along the edges of the opening 35a and the cutout opening 37a (see FIG. 4). The cutout portion 41b is continuously provided along the edges of the opening 35b and the pair of cutout openings 37b (see FIG. 4). The cutout portion 41c is continuously provided along the edges of the opening 35c and the pair of cutout openings 37c (see FIG. 4).

The headlamp tube 23 has a substantially tubular shape with a tubular wall portion 45 . The headlamp tube 23 is formed with a closing plate 47 (see FIG. 8) having an opening so that the light emitting element (see FIG. 2) of the headlamp 11 can be seen. A cutout opening 49 is formed in a portion of the tubular wall portion 45 and the closing plate 47 of the headlamp tube 23 . Furthermore, at the end of the tubular wall portion 45 of the headlamp tube 23 opposite to the closing plate 47, a first flange 51 (see FIG. 8) extending radially outward and a valley fold line with a narrow angle are formed. and a second flange 53 extending from the narrow-angled turn-up portion 46 (see FIG. 9B) extending from the inner wall portion of the notch opening 49 , that is, extending from the inner wall portion of the notch opening 49 . . The first flange 51 and the second flange 53 are continuous to form a second joint portion 55 joined to the first joint portion 39 of the mounting frame 21 . Specifically, the second joint portion 53 of the first flange 51 includes a joint portion 57 corresponding to the joint portion 41 a formed on the back surface of the bottom plate 29 of the mounting frame 21 , and the second joint portion 53 of the second flange 53 The joint portion 55 includes a cutout portion 59 corresponding to the cutout portion 41 a formed in the outer wall portion of the wall plate 31 . The missing portions 57, 59 of the first and second flanges 51, 53 are continuous. In addition, the notched portions 57 and 59 are provided with notched surfaces 61 and 63 bent in a crank shape when viewed in cross section (see FIG. 9).

The taillight tube 25 has a substantially tubular shape with a tubular wall portion 65 . The taillight tube 25 is formed with a closing plate 68 (see FIG. 10) having an opening so that only the light emitting elements (see FIG. 2) of the taillight 13 are visible. A cutout opening 67 is formed in the tubular wall portion 65 of the taillight tube 25 (see FIG. 10(b), two cutout openings 67 are formed in the illustrated example). A closing plate 69 (see FIG. 4) is used to close the cutout opening 67. As shown in FIG. Furthermore, at the end of the tubular wall portion 65 of the taillight tube 25 opposite to the closing plate 68, a first flange 71 extending radially outward (see FIG. 10) and a valley fold line of a narrow angle are provided. and a second flange 73 extending from the narrow-angled turn-up portion 66 (see FIG. 11) that connects to or extends from the inner wall of the cutout opening 67 . The first flange 71 and the second flange 73 are continuous to form a second joint portion 55 joined to the first joint portion 39 of the mounting frame 21 . Specifically, the second joint portion 55 of the first flange 71 includes a joint portion 77 corresponding to the joint portion 41 b formed on the back surface of the bottom plate 29 of the mounting frame 21 , and the second joint portion 55 of the second flange 73 The joint portion 55 includes a cutout portion 79 corresponding to the cutout portion 41 b formed in the outer wall plate 31 of the wall plate 31 . The missing portion 77 of the first flange 71 and the missing portion 79 of the second flange 73 are continuous. The notched portions 77 and 79 are provided with notched surfaces 81 and 83 that are bent like cranks in a cross-sectional view (see FIG. 11).

The decorative lamp tube 27 has a substantially cylindrical body having a tubular wall portion 85 . The decorative lamp tube 27 is formed with a closing plate 88 (see FIG. 12) having an opening so that only the light emitting element (see FIG. 2) of the decorative lamp 15 can be seen. A cutout opening 87 is formed in the tubular wall portion 85 of the decorative lamp tube 27 (see FIG. 12(b), two cutout openings 87 are formed in the illustrated example). At the end of the tubular wall portion 85 of the decorative lamp tube 27 opposite to the closing plate 88, a first radially outwardly extending first flange 89 (see FIG. 12) and a valley fold line of a narrow angle are provided. 13(a) and 13(c). and The first flange 89 and the second flange 91 are continuous to form a second joint portion 55 joined to the first joint portion 39 of the mounting frame 21 . Specifically, the second joint portion 55 of the first flange 89 includes a joint portion 95 corresponding to the joint portion 41c formed on the back surface of the bottom plate 29 of the mounting frame 21, and the second joint portion 55 of the second flange 91 The joint portion 55 includes a cutout portion 97 corresponding to the cutout portion 41 c formed in the outer wall plate 31 of the wall plate 31 . The missing portion 95 of the first flange 89 and the missing portion 97 of the second flange 91 are continuous. The notch portions 95 and 97 are provided with notch surfaces 99 and 101 that are bent in a crank shape when viewed in cross section (see FIG. 13).

The front and tail light glass 19 (see FIG. 2) is attached to the flange 34 of the mounting frame 21 of the light pipe 17, and protects the light pipe 17 from external factors such as wind pressure and flying foreign objects while the railroad vehicle 3 is running. . The front and rear light glass 19 has a shape following the outer shape of the flange 34 of the mounting frame 21 (in this embodiment, it has a rectangular shape, see FIG. 2). The front and taillight glass 19 allows the headlight tube 23, the taillight tube 25 and the decorative light tube 27 arranged in a space 33 formed by the bottom plate 29 of the mounting frame 21 and the wall plate 31 to be visually recognized from the outside. , the whole or at least the range facing the space 33 is transparent or translucent.

A method of manufacturing and assembling a light pipe 17 and a method of assembling the indicator light 1 to the head 5 according to one embodiment will now be described with reference to FIG.
In step S1, the mounting frame 21, the headlight tube 23, the taillight tube 25, the decorative light tube 27, and the cover plate 69 of the taillight tube 25 are formed separately. Specifically, a molding die for each member is coated with a resin material such as a polyester resin to form a molded product for each member. After molding, the molded product is released from the mold, and burrs and unnecessary parts are removed from the molded product. The closing plate 69 is joined to the tail light tube 25 by adhesion, welding, or the like so as to close the notch opening 67 of the tail light tube 25 (see FIG. 4).

In step S2, the molded products, that is, the headlight tube 23, the taillight tube 25, and the decorative light tube 27 are painted separately. At this time, the mounting frame 21, the headlight tube 23, the taillight tube 25 and the decorative light tube 27 are painted in different colors. As an example, at least a portion of the headlight tube 23, the taillight tube 25, and the decorative light tube 27 is painted gold, and the other portions are painted black. The surface of the mounting frame 21 is painted black. Specifically, the outer peripheral surfaces of the tubular wall plates 45 and 85 of the headlight tube 23 and the decorative light tube 27 are painted gold, and the outer peripheral wall and the inner wall of the tubular wall plate 65 of the taillight tube 25 are painted. Paint the walls in gold.

In step S3, clear coating is applied after coating, and then coating quality such as adhesion of dirt, dust, etc., coating surface, etc. is checked. At this time, defective portions are appropriately repaired by polishing or the like.
In step S4, after the coating quality is confirmed, the portions of the headlight tube 23, the taillight tube 25, and the decorative light tube 27 other than the black coating (that is, the gold-colored portions) are masked. After the masking, predetermined painted portions of the headlight tube 23, the taillight tube 25 and the decorative light tube 27 are painted black, and the surface of the mounting frame 21 is painted black. At this time, each member is coated separately.
In step S5, after painting, the masking is removed from each member, and the painting quality and parting quality are checked. At this time, defective portions are appropriately repaired by polishing or the like.

In step S6, after the mounting frame 21, the headlight tube 23, the taillight tube 25 and the decorative light tube 27 have been completely painted, the headlight tube 23, the taillight tube 25 and the decorative light tube 27 are attached to the mounting frame 21. Assemble. Specifically, the headlight tube 23 is inserted into the opening 35a and the notch opening 37a of the housing 32 (the bottom plate 29 and the wall plate 31) of the mounting frame 21, and the notched portions 57, 59 of the headlight tube 23 are is abutted against the missing portion 41a of the mounting frame 21 and held by the mounting frame 21 (see FIG. 3). As for the tail light tube 25 and the decorative light tube 27, the tail light tube 25 is inserted into the opening 35b and the notch opening 37b of the housing 32 (bottom plate 29 and wall plate 31) of the mounting frame 21, and the decorative light tube 27 is inserted. The recessed portions 77, 79 of the tail light tube 25 and the recessed portions 95, 97 of the decorative light tube 27 are inserted into the opening 35c and the notch opening 37c of the housing 32 (bottom plate 29 and wall plate 31). are held by the mounting frame 21 (see FIG. 3). Here, when the mounting frame 21 and the headlight tube 23, the taillight tube 25 and the decorative light tube 27 are butted against each other, the notch surfaces 61 and 63 of the notch portions 57 and 59 of the headlight tube 23 are attached. The notch surface 43a of the notch portion 41a of the frame 21, the notch surfaces 81 and 83 of the notch portions 77 and 79 of the tail light tube 25, the notch surface 43b of the notch portion 41b of the mounting frame 21, and the decorative lamp tube 27. The notch surfaces 99, 101 of the intermittent portions 95, 97 of the mounting frame 21 and the notch surface 41c of the intermittent portion 41c of the mounting frame 21 are bent in a crank shape (see FIG. 6), so that the mounting position can be easily determined. fixed and securely fixed.

Then, an adhesive 103 is applied to joints between the mounting frame 21 and the headlight tube 23, the taillight tube 25 and the decorative light tube 27 (see FIGS. 5 and 6). At this time, the adhesive 103 is applied from the outside of the bottom plate 29 and the wall plate 31 of the mounting frame 21 to the joints between the cutout portions 57 and 59 of the headlamp tube 23 and the cutout portion 41a of the mounting frame 21, the taillight The joints between the intermittent portions 77 and 79 of the tube 25 and the intermittent portion 41b of the mounting frame 21 and the joint portions between the intermittent portions 95 and 97 of the decorative lamp tube 27 and the intermittent portion 41c of the mounting frame 21 are covered. Apply to As a result, the assembly of the mounting frame 21, the headlight tube 23, the taillight tube 25 and the decorative light tube 27 is completed.

In step S7, the headlight 11, the taillight 13, and the decorative light 15 are assembled to the head portion 5 of the railroad vehicle 3 in order to attach the marker light 1 to the head portion 5 of the railroad vehicle 3. As shown in FIG.
In step S<b>8 , after assembly, the optical conduit 17 is attached to the head portion 5 of the railcar 3 . At this time, the light emitting element of the headlamp 11 is arranged so as to close the opening of the closing plate 47 of the headlamp tube 23 . Also, the light emitting element of the tail light 13 is arranged at a predetermined distance from the end opposite to the closing plate 68 and positioned outside the tail light tube 25 . Furthermore, the light emitting element of the decorative lamp 15 is arranged inside the decorative lamp pipe 27 at a predetermined distance from the inner wall surface of the cover plate 88 of the decorative lamp pipe 27 . As a result, when the light pipe 17 is viewed, the blocking portion 47 of the headlamp tube 23 prevents the structures other than the light emitting element of the headlamp 11 and the optical axis adjustment fastener (not shown) from being seen from the outside. Therefore, the aesthetic appearance of the headlamp tube 23 is maintained. Furthermore, the appearance of the tail light tube 25 and the decorative light tube 27 looks substantially the same as the appearance of the headlight tube 23, so the aesthetic appearance of the light pipe 17 is preserved.

In step S9, a watertight sealing is applied between the light pipe 17 and the head 5. As shown in FIG.
Then, in step S10, the optical axis of the headlamp 11 is adjusted.
Finally, in step S11, after adjusting the optical axis, the front and rear lamp glass 19 is attached to the flange 34 of the attachment frame 21. As shown in FIG. As a result, the assembly of the marker lamp 1 to the head portion 5 of the railroad vehicle 3 is completed.

According to the optical pipe 17 having the above configuration and the method of manufacturing the same according to one embodiment, it is possible to obtain the following effects. That is, since the mounting frame 21, the headlight tube 23, the taillight tube 25, and the decorative light tube 27 are configured separately, each member can be molded separately, and the molding die structure is not complicated. It is possible to avoid.

Further, according to the light pipe 17 and the manufacturing method thereof according to one embodiment, the headlight tube 23, the taillight tube 25, and the decorative light tube 27 are at least partially painted in a different color from that of the mounting frame 21. Therefore, various aesthetic appearances of the light pipe 17 can be realized. In addition, since the mounting frame 21, the headlight tube 23, the taillight tube 25 and the decorative light tube 27 are separately constructed, if each member is to be painted, fine details of each member can be obtained. The paint reaches even the parts, making it possible to improve the quality of each member. In addition, during the painting work, the golden painted portions of the headlight tube 23, the taillight tube 25 and the decorative light tube 27 are masked, and the other portions are painted black. Since each part is painted, masking can be easily applied, the burden of painting work can be reduced, and work efficiency can be improved.

Furthermore, according to the light pipe 17 and the manufacturing method thereof according to one embodiment, the joints between the mounting frame 21 and the headlight tube 23, the taillight tube 25, and the decorative light tube 27 are at least partially included. They are continuously connected across the valley fold line, and even if this configuration is adopted, the mounting frame 21, the headlight tube 23, the taillight tube 25 and the decorative light tube 27 are painted separately. By doing so, in a state in which these are combined, the portion near the valley fold line of the narrow angle is also painted, and the necessary painting quality can be secured, and various aesthetic appearances of the light pipe 17 can be realized. .

In addition, according to the light pipe 17 and the manufacturing method thereof according to one embodiment, the headlight tube 23, the taillight tube 25, and the decorative light tube 27 have tubular wall plates 45, 65, and 85, respectively. The light emitted from the lamp 11, the tail lamp 13 and the decorative lamp 15 can be reflected by the inner wall surfaces of the tubular wall plates 45, 65 and 85 and guided to the outside. Further, by abutting the gapped portions 57 and 59 of the headlamp tube 23 against the gapped portion 41a of the mounting frame 21, the headlamp tube 23 is securely held by the mounting frame 21, and the tail lamp tube 25 and the decorative lamp tube 27 are securely held. Also, by abutting the missing portions 77, 79 of the tail light tube 25 and the missing portions 95, 97 of the decorative lamp tube 27 against the missing portions 41b, 41c of the mounting frame 21, the mounting frame 21 is securely held. be. Moreover, the headlight 11, the taillight 13, and the decorative light 15 form a projecting shape that exerts presence in the space surrounded by the bottom plate 29 and the wall plate 31 of the mounting frame 21, and the design of the marker light 1. diversity.

Further, according to the light pipe 17 and the manufacturing method thereof according to one embodiment, the phase cut portions 41a, 41b, 41c of the mounting frame 21, the phase cut portions 57, 59 of the headlight tube 23, and the taillight tube 25 are The intermittent portions 77, 79 and the intermittent portions 95, 97 of the decorative lamp tube 27 are notched surfaces 43a to 43c, 61, 63, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81. 83, 99, 101 are formed, and these intermittent surfaces 43a to 43c, 61, 63, 81, 83, 99, 101 are butted in a crank-like bent manner. It is possible to ensure the tightness and/or adhesion of the parts. In addition, since the thickness of the butted member is kept to be the same as that of the general portion of the member, unnecessary increase in thickness can be prevented. The mounting positions of the headlight tube 23, the taillight tube 25, and the decorative light tube 27 with respect to the mounting frame 21 can be easily determined, and the mounting frame 21, the headlight tube 23, the taillight tube 25, and the decoration can be easily determined. The lamp tube 27 is easily and reliably coupled.

Further, according to the light pipe 17 and the method for manufacturing the same according to one embodiment, the cutout portions 57 and 59 of the headlight tube 23 and the cutout portions of the mounting frame 21 are removed from the outside of the bottom plate 29 and the wall plate 31 of the mounting frame 21 . Joints with the portion 41a, joints between the missing portions 77, 79 of the tail light tube 25 and the missing portion 41b of the mounting frame 21, and missing portions 95, 97 of the decorative lamp tube 27 and the mounting frame 21. By including the adhesive 103 (adhesive layer) covering the joint with the portion 41c, the intermittent joint between the mounting frame 21 and the headlight tube 23, the taillight tube 25 and the decorative light tube 27 is ensured. It can be fixed.

Further, according to the light pipe 17 and the manufacturing method thereof according to one embodiment, the phase cut portions 41a, 41b, 41c of the mounting frame 21, the phase cut portions 57, 59 of the headlight tube 23, and the taillight tube 25 are As described above, the intermittent portions 77, 79 and the intermittent portions 95, 97 of the decorative lamp tube 27 secure a sufficient joint area to ensure sealing and/or fixation of the butted portions. , the shape ensures the positioning of the members relative to each other, so that the amount of the adhesive 103 used can be reduced.

Further, the missing portions 41a, 41b, 41c of the mounting frame 21, the missing portions 57, 59 of the headlamp tube 23, the missing portions 77, 79 of the taillight tube 25, and the missing portions of the decorative lamp tube 27 The portions 95 and 97 are butted in such a manner that their corresponding intermittent surfaces 43a-c, 61, 63, 81, 83, 99 and 101 are bent in a crank shape, which is different from a simple butting structure. Therefore, the path from the outside of the bottom plate 29 and the wall plate 31 of the mounting frame 21 to the inside of the mounting frame 21 becomes long. As a result, even if the adhesive 103 is applied from the outside of the bottom plate 29 and the wall plate 31 of the mounting frame 21, the adhesive 103 does not reach from the joint to the inside of the mounting frame 21, that is, the portion that affects the appearance of the signal lamp 1. becomes difficult to enter, and it becomes possible to avoid spoiling the appearance.

Further, according to the marker lamp 1 and the manufacturing method thereof according to the embodiment, since the front and rear lamp glass 19 is transparent, the shape realized by the light pipe 17 can be visually recognized through the front and rear lamp glass 19, and the marker lamp can be seen. It becomes possible to realize the diversity of one design.

In the light pipe 17 according to one embodiment, the recessed portions 57 and 59 of the headlight tube 23, the recessed portions 77 and 79 of the taillight tube 25, and the recessed portions 95 and 97 of the decorative light tube 27 are Although it is formed continuously, it may be an intermittent gap.

In addition, in the light pipe 17 according to one embodiment, when the headlight tube 23, the taillight tube 25 and the decorative light tube 27 are assembled to the mounting frame 21, the decorative light tube 27 is arranged to protrude most from the mounting frame 21. Next, the headlamp tube 23 is arranged so as to project, and the taillamp tube 25 is arranged so as to project the least, but the projection size may be changed as appropriate.

Furthermore, in the light pipe 17 according to one embodiment, the headlight tube 23, the taillight tube 25, and the decorative light tube 27 are substantially cylindrical, but they may be other cylinders such as square cylinders.

Further, in the light pipe 17 according to one embodiment, at least a portion of the headlight tube 23, the taillight tube 25, and the decorative light tube 27 is painted gold, and the other portions are painted black. , its surface is painted black, but it may be painted in other colors such as silver or white depending on the design or safety requirements.

In the light pipe 17 according to one embodiment, the outer edge of the flange 34 of the mounting frame 21 has a substantially rectangular shape when viewed from the front. good too. Here, the shape of the headlight glass 19 may be changed so as to follow the outer edge of the flange 34 as the shape of the outer edge of the flange 34 is changed.

DESCRIPTION OF SYMBOLS 11... Headlight, 13... Taillight, 17... Optical pipe, 21... Mounting frame, 23... Headlight tube, 25... Taillight tube

Claims (12)

A light conduit for housing headlights and taillights of a railroad vehicle, comprising:
a headlight tube that guides the light emitted from the headlight to the outside; a taillight tube that guides the light emitted from the taillight to the outside; and a mounting frame that holds the headlight tube and the taillight tube. and are configured separately,
The light pipe, wherein the outer peripheral surface of the headlight tube and the outer peripheral wall of the taillight tube are painted in a color different from that of the mounting frame. The mounting frame includes a housing composed of a bottom plate and wall plates surrounding the bottom plate,
an opening is formed in the housing, and the headlight tube and the taillight tube are inserted into the opening;
The connecting portion between the mounting frame and the headlight tube and/or the taillight tube is continuously connected at least partly across a narrow-angled valley fold line. Item 2. The light pipe of item 1. The headlight tube and the taillight tube have tubular wall portions, and the wall plate or the bottom plate of the housing of the mounting frame and the tubular shape of the headlight tube and/or the taillight tube 3. A light pipe according to claim 2, wherein the wall is connected via said junction. 4. The light according to claim 2 or 3, wherein the joint portion includes a mating portion provided in the mounting frame and the headlight tube and/or the taillight tube. conduit. 5. A light pipe as claimed in claim 4, comprising an adhesive layer covering the recess from the outside of the bottom plate and/or wall of the mounting frame. A light pipe according to any one of claims 1 to 5, a headlight and a taillight housed in the light pipe, and a transparent front and taillight glass fixed to a flange formed on the wall of the mounting frame. A marker light characterized by: A method of manufacturing a light conduit for housing headlights and taillights of a railroad vehicle, comprising:
a headlight tube that guides the light emitted from the headlight to the outside; a taillight tube that guides the light emitted from the taillight to the outside; and a mounting frame that holds the headlight tube and the taillight tube. Molded so that and are configured separately,
A method of manufacturing a light pipe, wherein the outer peripheral surface of the headlight tube and the outer peripheral wall of the taillight tube are painted in a color different from that of the mounting frame. forming a housing including a bottom plate and a wall plate surrounding the bottom plate on the mounting frame;
forming an opening in the housing;
inserting the headlight tube and the taillight tube into the opening,
8. The mounting frame and the headlight tube and/or the taillight tube are continuously connected in such a manner that they are at least partially sandwiched by a valley fold line with an included angle. of the light pipe. The headlight tube and the taillight tube have tubular wall portions, and the wall plate or the bottom plate of the housing of the mounting frame and the tubular shape of the headlight tube and/or the taillight tube 9. The method of manufacturing a light pipe according to claim 8, wherein the wall is connected through the joint. 10. The method of manufacturing a light pipe according to claim 8, wherein as the joining portion, a recessed portion is formed in the mounting frame and the headlight tube and/or the taillight tube. 11. The method of manufacturing a light pipe according to claim 10, wherein the cutout portion is covered with an adhesive layer from the outside of the bottom plate and/or the wall portion of the mounting frame. Manufacture of a marker light characterized in that a headlight and a taillight are accommodated in the light pipe according to any one of claims 7 to 11, and a transparent front and taillight glass is fixed to a flange formed on the wall portion of the mounting frame. Method.

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