JP2009004345A - Model with headlight and light guide mechanism for headlight - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new model expression method for making a hue at the time of switching-off of light and give a reality same as an actual object while maintaining its lighting performance of a model with a headlight. <P>SOLUTION: A rear light guide section 8c guides emission light of a light-emitting body 7b arranged in the vicinity of itself in response to a self profile. A front light guide section 8d has an opposing face opposite to the rear light guide section 8c and the tip face 8a exposed when inserting into a through-hole, and a distance between these faces becomes a straight profile. A half-mirror 8b is interposed between the front and rear light guide sections 8c, 8d. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a model with a headlamp and a light guide mechanism for the headlamp, and more particularly to an improvement in color tone when a lighting type headlamp is turned off.

  There are various standards for railway models, such as N gauge, HO gauge, and O gauge, depending on the difference in the distance (gauge) between the left and right rails. In recent years, the improvement of N gauge reality (actual vehicle reproducibility) has been particularly striking. After all, what was super-sensational was the appearance of a coupler called TN coupler (registered trademark). This coupler is capable of connecting and releasing vehicles while having a realistic appearance similar to that of a real vehicle, and it can withstand a towing load when towing a train with a connecting surface of only a few millimeters. It is a thing. Before that, an almost U-shaped coupler called Arnold coupler was common, so it was an exaggeration to say that the emergence of TN coupler was "excellent" of the user at that time. is not. In retrospect, TN couplers may have been the forerunner of recent trends in realization. In addition, as an aside, the inventor sealed N-gauge, which started when he was an elementary school student, after becoming a university student, but he was sleeping in the back of a close-up after encountering a TN coupler. I opened the box and returned to this world (sweat). Besides that, in addition to couplers, various parts such as signal flame tubes and ventilators, subfloor equipment, miniaturization, and the emergence of retractable telescopic close-coupled TN couplers for Shinkansen (400 series, E2 series, etc.) As you can see, the improvement for realization has been enormous, and recently, it has become a separate part as a linear part, such as the handrail of the locomotive and the release lever, and it is showing a geeky aspect. is there.

  As described above, although the reality of the N gauge is certainly improved, there is still a toy-like portion that is “absolutely unacceptable” as the subjectivity of the inventor. It is the color when the lighting headlamp is turned off. If it is true, the headlamps should look whiteish silver even when the lights are off, but in the model they will look black. For example, as can be seen from an actual photograph of a 455 series (475 series) train published on page 140 of Non-Patent Document 1, the headlight of the actual vehicle when turned off looks whited silver. As is apparent from the light source system of an automotive headlamp disclosed in Patent Documents 5 and 6 (integrated structure of a lamp and a curved reflecting plate), external light that is specularly reflected in the headlamp This is caused by being incident on the human eye through the front glass. On the other hand, in the case of the model, the headlamp is black, as you can see from the model photo when the light is turned off, which is posted on the same page of Non-Patent Document 1, and in other words, the “black eyeball” It is in such a state. For small models such as N gauge, it is difficult to adopt an optical structure similar to the actual one using a reflector because of size, cost, productivity, etc., and most of the built-in light emitters (such as beans and LEDs) A simple structure is employed in which light emitted from a light source (without a reflector) is guided by a light guide material. In such a structure, in order to prevent unnecessary light leakage from the optical system, most of the light guide material is often shielded except the tip surface exposed to the outside. Examples of the light shielding method include a method of arranging a light guide material in a space shielded by a light shielding wall, and a method of shielding light by coloring the periphery of the light guide material in black or silver. However, in any method, since the external light hardly enters the light guide material, the light guide material looks black when viewed from the outside. Currently, N-gauge vehicle products in Japan are mass-produced by many manufacturers including Kansui Metal (KATO), Tomytec (Tomix), Microace, Green Max, and Modemo. Black eyeball turning when the light is turned off is a phenomenon common to all commercial products, but no improvement has been made.

  Here, as the prior art that seems to be related to the present invention, what the present inventor currently grasps is listed below. First, Patent Document 1 discloses a marker lamp device for a small model vehicle assuming a railway model including a headlamp and a marker lamp. In this device, the front and rear parts of the vehicle including headlamps and marker lamps are separated from the body of the vehicle body, and are formed of a transparent material such as acrylic resin. Inside this part is housed a miniature light bulb that serves as a light source for headlamps and beacon lights. To prevent light leakage from unnecessary parts, the surface of the parts exposed to the outside is covered with a coating film such as non-conductive plating, silver paint, or car body exterior color except for the lens part of headlights and beacon lights. It has been broken. Next, Patent Document 2 discloses a light for a toy car that realizes the appearance of the light as if the light source is emitting light without using the light source. A curved colored transparent plate is provided at the opening in front of the light, and an irregular reflection plate is disposed behind the transparent transparent plate. The external light transmitted through the curved colored transparent plate is reflected by the irregular reflection plate and emitted to the outside through the colored transparent plate. As a result, when viewed from the outside, the light appears to emit a glow due to the irregularly reflected emitted light. Patent Document 3 discloses a hand mirror toy in which a picture, a character, or the like suddenly appears on a mirror surface. This hand mirror toy has a built-in light-emitting panel body that uniformly emits light, and forms a mirror surface exposed to the outside with a half mirror layer. A film member on which display contents such as pictures and characters are printed is provided between the light emitter panel and the half mirror layer. When the light-emitting panel body is turned off, the hand mirror toy functions as a pure hand mirror by reflection of external light by the half mirror layer itself. On the other hand, when the light-emitting panel body is turned on, light emitted from the internal light-emitting panel body partially passes through the film member according to the printed display content and is emitted to the outside through the half mirror layer. The Thereby, the display content projected on the mirror surface can be visually observed from the outside. Further, Patent Document 4 discloses a ignition toy that expresses colors on the front and rear lamps by friction with a file ring and a ignition stone.

  On the other hand, although belonging to a technical field different from a model toy, Patent Documents 5 and 6 disclose a front of an automobile having a plurality of light source systems each composed of a lamp and a reflector (reflecting mirror) and a half mirror. An illumination lamp is disclosed. Specifically, Patent Document 5 discloses a configuration in which a headlamp light source system and a fog lamp light source system are integrated. The fog lamp light source system is provided behind a large reflector provided in the headlamp light source system. At that time, a window is formed in a part of the large reflector, corresponding to the front of the fog lamp light source system, and a half mirror is provided in this window. Thereby, the emitted light from the fog lamp light source system is radiated to the outside through the window-shaped half mirror without being blocked by the large reflector in front of the fog lamp light source system. As a result, the fog lamp light source system can be built in the headlamp without impairing the original function of the headlamp and without being restricted by the installation space of the vehicle body. Patent Document 6 discloses a configuration having a main light source system and two sub light source systems in order to improve visibility for a pedestrian at night. The main light source system is arranged at the center of the front opening of the lamp body, and sub-light source systems are arranged on the left and right sides thereof. A half mirror is provided flush with the projection lens that projects light emitted from the main light source system, and a sub light source system is located behind the half mirror. Accordingly, the entire front opening of the lamp body can be brilliant without impairing the appearance, and the driver or pedestrian of the preceding vehicle can be prevented from making an illusion of the following vehicle.

In these Patent Documents 5 and 6, the reflector is an indispensable constituent member in each light source system, as in general common sense regarding a real headlamp, and when combining a plurality of light source systems, the frame of the general common sense is used. Only a half mirror is added inside. That is, there is no disclosure or suggestion of a model expression method in which a turn-off color is expressed in a simple manner without impeding lighting properties in a model that is difficult to adopt the same configuration as the actual product.
Japanese Utility Model Publication No. 57-5291 Japanese Utility Model Publication No. 39-1780 Utility Model Registration No. 3078475 Japanese Utility Model Publication No. 29-3826 Japanese Utility Model Publication No. 61-145401 JP-A-2-192602 “TOMIX CATALOG 2004-2005 (Tomix General Catalog 7027)” Publisher Tommy Corporation

  Needless to say, overall balance is important for the reality of the model. Therefore, it can be said that the user's natural psychology is that the reality of another part that has not been noticed until now is started to worry as the reality of the part is improved. Conventionally, the color of the headlamp when the lamp is turned off has been allowed to be almost not a problem because it was left with a part of interest. However, as the reality of N gauge has improved so far, the present inventor believes that the potential need for this color improvement is extremely high considering the balance of the entire model. Under such conviction, the present inventor worked on this problem for about two years while working for the main business, and finally came to find a groundbreaking and practical solution through difficult difficulties to be exhausted. It is.

  The present invention has been made in view of such circumstances, and its purpose is to provide a novel model expression that maintains the same lightness as the actual product while maintaining the lighting performance of the model with headlamps. It is to provide a method.

  In order to solve such a problem, the first invention provides an opening provided in a portion corresponding to a headlamp, a light emitter capable of controlling a light emission state, a light guide mechanism, a half mirror, and a light shielding means. A model with a headlight having a headlamp is provided. The light guide mechanism is inserted into the opening, guides the light emitted from the light emitter, and emits the light from the tip surface exposed from the opening toward the outside. The half mirror is interposed in the light guide mechanism on the inner side of the front end surface and at a position where it can be seen from the front end surface. The light shielding means blocks external light incident on the rear surface side of the half mirror, except for external light entering through the half mirror from the opening.

  2nd invention provides the model with a headlamp which has the opening part provided in the site | part corresponded to a headlamp, the light-emitting body which can control a light emission state, a light guide mechanism, and a half mirror. The light guide mechanism is inserted into the opening, guides the light emitted from the light emitter, and emits the light from the tip surface exposed from the opening toward the outside. The half mirror is interposed in the light guide mechanism on the inner side of the front end surface and at a position where it can be seen from the front end surface. Further, the half mirror has a non-planar shape in which the depth from the tip surface continuously changes.

  According to a third aspect of the present invention, there is provided an opening provided in a portion corresponding to a headlamp, a light emitter that can control a light emission state, a half mirror provided at a position that can be seen through the opening, and a light emitter. There is provided a model with a headlamp having a first light guide part that guides emitted light to a rear surface side of a half mirror and a second light guide part provided on a front surface side of the half mirror in an opening. Here, the 1st light guide part and the 2nd light guide part are integrated in the state where the half mirror intervened by fitting the non-planar part which can fit mutually.

  4th invention provides the headlamp light guide mechanism of the model with a headlamp which lights a headlamp with the light radiate | emitted from the light-emitting body. The headlamp light guide mechanism includes a half mirror, a first light guide portion that guides light emitted from the light emitter to the rear side of the half mirror, and a portion corresponding to the headlamp in the model with the headlamp. And a second light guide provided on the front side of the half mirror in the provided opening. The first light guide unit and the second light guide unit are integrated with a half mirror interposed by fitting non-planar portions that can be fitted to each other.

  According to the first invention, the light shielding means blocks the incidence of external light on the rear surface side of the half mirror (including both complete light shielding and partial light shielding), so that no light is shielded at all. Thus, the difference in the amount of light incident on the front and back of the half mirror increases. When the light emitter is turned off, the amount of light incident on the front surface side of the half mirror is larger than the amount of light incident on the rear surface side of the half mirror. As a result, the specularly reflected external light from the half mirror is mainly viewed, so the color of the half mirror and the clear color of the light guide located in front of it combine to shine like an actual vehicle. Looks. The actual light-off color is brought about by the specular reflection of outside light and the clear color of the front glass (diffuse inside). According to the first invention, the same optical color as that of the real headlamp is used. By adopting a mechanism (specular reflection and diffusion), it is possible to reproduce the extinction color that is full of reality. On the other hand, when the light emitter is turned on, the amount of light incident on the rear side of the half mirror is larger than the amount of light incident on the front side of the half mirror. As a result, the light transmitted through the half mirror of the light emitted from the light emitter is mainly visually observed, so that it is possible to ensure a level of lighting performance (light quantity) that is practically satisfactory. By using this model-like expression method, the lighting performance of the headlamp and the reality of the color at the time of extinction can be achieved at a high level, so the product appeal of the model with the headlamp can be enhanced. become.

  According to the second invention, by using the non-planar half mirror, the external light incident from the front end surface is reflected unevenly. Accordingly, a gradation similar to the real one is generated in the light-off color, so that the reality as a model expression method can be further enhanced.

  According to the third or fourth aspect of the invention, the first and second light guides are integrated with the half mirror interposed. This integration is performed by fitting non-planar portions that can be fitted to each other. As a result, the strength at the time of integration can be ensured, and the positioning of the parts at the time of integration becomes easy, so that the productivity can be improved.

  FIG. 1 is an external perspective view of a railway vehicle model. This railcar model 1 is a model of JR (former Japanese National Railways) 165 series express train, specifically Kuha 165 or Kumoha 165, which is the leading car (to be precise, the control car). It has been commercialized by Tomytec as a (high grade) specification. The 165 series, including its derivatives, is a popular car model that has been widely used in DC electrification routes nationwide (especially Honshu), and has been commercialized by Sekisui Metal and Microace. Although this is also an aside, the inventor was said to be a museum of the old-fashioned electric train on the ordinary train Ogaki line by the work of 165 series (maybe it was still 153 series at that time?) I went to the Iida Line several times to take a railroad photo, but with my thoughts back then, this is my favorite car model.

  Now, inside the model main body 2, two light emitters, specifically, two miniature balls or LEDs are provided. These light emitters can control the light emission state (lighting / extinguishing) by an electric current supplied from the outside. In addition, headlamps 3 (headlights) are provided on the left and right sides of the center of the front surface of the model body 2. Specifically, the part corresponding to the headlamp 3 in the model main body 2 has a shape that protrudes forward in a columnar shape, and a through hole (opening) that penetrates inside and outside is formed inside the part. Yes. A part of a transparent or translucent light guide material mainly composed of plastic or acrylic is inserted into the through hole. On the other hand, tail lights 4 (tail lights) are provided on the left and right sides below the front surface of the model body 2. The structure of the taillight 4 on the model is basically the same as that of the headlamp 3. However, in order to turn on the taillight 4 independently from the headlamp 3, a transparent red light guide made of plastic is used separately, and a light emitter different from that for the headlamp 3 is used as the light source. Is done. A cart 6 is attached to the bottom of the model main body 2 with screws 5. The electric current supplied to the rail is supplied to the light emitter incorporated in the model main body 2 via a metal wheel, a current collecting spring, or the like that the carriage 6 has.

  As shown in FIG. 2, a lighting unit 7 is attached to the model body 2. The lighting unit 7 is an integrated unit of two light emitters, a headlight light guide material, a taillight light guide material, and the like. In the light shielding case, no light leaks from an optical system including them. It is stored. Thereby, the optical system is shielded except for external light incident from the front through the front end surface of the headlamp light guide member and the front end surface of the tail lamp light guide member. In addition, as a light blocking method for the headlamp light guide material, etc., a method of coloring the periphery of the light guide material with a paint (non-transparent material) in addition to such a method of arrangement in the light blocking space, or Alternatively, a technique of coating the periphery of the light guide material with a non-permeable member may be used.

  FIG. 3 is an exploded perspective view of the lighting unit 7. A light emitter 7b for lighting the headlamp 3 is attached to the upper surface of the printed circuit board 7a, and a light emitter (not shown) for lighting the taillight 4 is attached to the lower surface thereof. . Moreover, the contact spring 7c attached to the lower surface of the printed circuit board 7a is electrically connected to the metal wheel of the carriage 6 through another conductive material (not shown). The printed circuit board 7a is placed on the lower case 7d with the contact spring 7c inserted through the opening of the lower case 7d. An upper case 7e is attached above the lower case 7d, and a front case 7f is attached in front of the upper case 7e. The light emitters above and below the printed circuit board 7a are optically separated from each other with the printed circuit board 7a itself serving as a light shielding wall. A headlamp light guide member 8 and a tail lamp light guide member 9 are attached to the front case 7f. The headlamp light-guiding member 8 guides the light emitted from the light emitter 7b to the headlamp portion of the model body 2, and radiates the light from the tip surface exposed through the through hole corresponding to the opening to the outside. . Further, the taillight light guide member 9 guides light emitted from a light emitter different from the light emitter 7b to the taillight portion of the model body 2, and radiates light outward from the tip surface exposed through the through hole. Since these light guide members 8 and 9 are optically separated from each other by the wall portion formed in the front case 7f, no light leakage occurs between them.

  FIG. 4 is a perspective view of the headlamp light guide member 8. The characteristic of the headlamp light guide member 8 is that a half mirror 8b having special optical characteristics is interposed. The half mirror 8b is interposed in the light guide material 8 on the inner side of the front end surface 8a and at a position where the user can see through the front end surface 8a (opening). Specifically, the headlamp light guide member 8 includes a half mirror 8b, a rear light guide portion 8c disposed behind (the rear surface side) of the half mirror 8b, and a front guide disposed on the front (front side) thereof. It is comprised by the optical part 8d.

  The rear light guide portion 8c is a substantially U-shaped transparent plastic member, and has a portion extending in the lateral direction of the model body 2 and a portion protruding forward from the left and right of this portion. A cylindrical protrusion is formed at each end of the protruding portion. The projecting portion has an outer diameter substantially the same as the inner diameter of the through hole of the headlamp 3 and is inserted into the through hole. On the other hand, the front light guide portion 8 d is a transparent plastic cylindrical member having the same outer diameter as the protruding portion, and is inserted into the through hole of the headlamp 3. In a state where the front light guide 8d is inserted into the through hole of the headlamp 3, the front end surface 8a of the front light guide 8d is exposed from the through hole. The front end surface 8a functions as a radiation surface that radiates light emitted from the light emitter 7b to the outside during lighting, and functions as an incident surface through which external light enters when the light is extinguished. The headlamp light guide member 8 shown in the figure is obliquely cut and has a chamfered corner. The reason for forming these is that the light emitted from the light emitter 7b is applied to the surface of the part. This is because the light is reflected in a predetermined direction and the light is efficiently guided to the distal end surface 8a.

  A half mirror 8b cut to the same diameter as the front light guide 8d is interposed between the rear light guide 8c and the front light guide 8d. The half mirror 8b has a silvery metallic luster, and can be obtained, for example, by attaching a metal evaporated by vacuum deposition to the surface of the material. The half mirror 8b has the following two characteristics. Which one is dominant (dominant) depends on the amount of light incident on the front side of the half mirror 8b and the amount of light incident on the rear side. Depends on the magnitude relationship.

(1) Specular reflectivity (mirror property)
This is a characteristic of specularly reflecting light incident on the surface of the half mirror 8b. This property is a factor that affects the color of the headlamp 3 when it is turned off. A material mainly made of aluminum or silver is easily available.

(2) Translucency (half property)
It is a characteristic that transmits part of light (visible light) and blocks the other part. This characteristic is expressed as transmittance (visible light transmittance), and is a factor that affects the lighting performance of the headlamp 3, specifically, the amount of light. If the transmittance is too low (for example, 10% or less), the amount of light at the time of lighting is remarkably reduced, and the lighting performance of the headlamp 3 is impaired. On the other hand, if the transmittance is too high (for example, 90% or more), a sufficient amount of light can be secured, but the reflectivity of the mirror surface decreases, making it difficult to reproduce the color when the light is turned off. Therefore, after considering these contradictory matters, a material having an appropriate transmittance (for example, about 10 to 50%) should be selected.

  When the light guide portions 8c and 8d are formed separately and are joined and integrated, the half mirror 8b is directly formed in advance on the entire one joint surface (opposing surface) of the light guide portions 8c and 8d. In this case, a sandwich structure of the half mirror 8b by the light guide portions 8c and 8d can be obtained only by integrating the light guide portions 8c and 8d. As a method of directly forming the half mirror 8b, for example, a known hot stamp (foil stamping), that is, a printing technique in which a half mirror foil (a metal deposition film such as aluminum) is transferred to the one joining surface by thermocompression bonding is used. be able to. Alternatively, the half mirror 8b may be formed directly using a technique such as silver mirror plating. The present invention does not exclude such a form, but considering the cost and productivity as a model, this film material uses a half mirror 8b (metal deposition film such as aluminum) as a film material. It is preferable to adopt a technique of sandwiching the light guides with the light guide members 8c and 8d. This film material is applied to glass and used for the purpose of protecting the privacy of the interior of a vehicle or the room, or saving energy by shading, and is marketed under the names of mirror film and magic film. A product obtained by vacuum-depositing aluminum on a transparent polyester film is preferable because it is relatively inexpensive and easily available. For example, a silver type product (product model number: KM-211, or XM-11, XM-61, XM-71) sold by Miralead can be used. Similar films are also available from companies such as I-Cay and E-Revolution. The light guides 8c and 8d and the half mirror 8b may be either integrated in advance as one part, or may be separately assembled and individually assembled to the model main body 2.

  Next, the optical mechanism of the headlamp light guide member 8 will be described with reference to FIGS. 5 and 6. The figure schematically shows the path (light path) of light traveling in the light guide material 8, and in actuality, on the reflection surface formed by cutting or chamfering in the light guide material 8. It should be noted that the optical path becomes more complicated due to reflection, diffusion in the light guide member 8, and the like. Further, in the drawing, the front and rear light guide portions 8c and 8d and the half mirror 8b constituting the light guide material 8 are shown separated from each other, but this is merely for convenience of explanation, and these members are shown. It does not exclude the form in which 8b to 9d are in close contact (of course, they may be separated).

  FIG. 5 is an explanatory diagram of the optical mechanism of the headlamp light-guiding member 8 when the light is turned off. When the light-emitting body 7b is turned off, no light is incident on the light guide portions 8c and 8d except for external light incident from the front through the tip surface 8a. The external light incident from the front is guided according to the linear light guide shape between the front end surface 8a and the opposing surface 8e facing the rear light guide 8c, and enters the front side of the half mirror 8b. Of this incident light, light corresponding to the transmittance of the half mirror 8b is transmitted to the rear light guide 8c, but most of the other light is specularly reflected and diffused in the linear light guide shape. However, it returns to the outside and is radiated to the outside from the front end face 8a. At that time, the rear surface side of the half mirror 8b, that is, the incidence of external light on the rear light guide portion 8c is blocked (including both complete light shielding and partial light shielding), so the rear surface side of the half mirror 8b. There is almost no light incident on. Accordingly, the amount of light incident on the front side of the half mirror 8b is significantly larger than the amount of light incident on the rear side of the half mirror 8b. As a result, when viewed from the outside, the external light that is specularly reflected by the half mirror 8b is mainly viewed, and the metallic color of the half mirror 8b itself and the clear color of the front light guide portion 8d located in front of the half mirror 8b match. It looks bright and shining in a silvery white color, resembling a realistic color similar to a real vehicle headlamp.

  FIG. 6 is an explanatory diagram of an optical mechanism of the headlamp light guide member 8 at the time of lighting. When the light emitter 7b is turned on, the light emitted from the light emitter 7b enters the rear light guide portion 8c provided in the vicinity of the light emitter 7b, is guided according to the shape of the rear light guide portion 8c, and is a half mirror. The light enters the rear surface side of 8b. Of the light incident on the rear surface side of the half mirror 8b, light corresponding to its own transmittance is transmitted through the half mirror 8b. The light incident on the facing surface 8e of the front light guide portion 8d is guided forward while being diffused by the linear light guide shape of the front light guide portion 8d, and is emitted to the outside from the front end surface 8a. In this case, the amount of light incident on the front and back surfaces of the half mirror 8b is larger in the emitted light of the light emitter 7b incident from the rear than the external light incident from the front. As a result, the transmitted light becomes more dominant (dominant) than the reflected light of the half mirror 8b, and the light transmitted through the half mirror 8b out of the light emitted from the light emitter 7b is mainly visually observed. The lighting of the headlamp 3 can be confirmed. In addition, since the original light quantity itself of the light-emitting body 7b is quite large, even if the half mirror 8b is interposed, a light quantity (irradiation amount) at a level that does not impede practical use can be secured.

  FIG. 7 is a view showing the headlamp light guide member 8 inserted into the through hole of the headlamp portion of the vehicle body 2. The symbol b shown in the figure is a part of the light guide member 8 and indicates a linear insertion portion inserted into the through hole. Reference symbol c denotes the inner surface of the model body 2. Regarding the arrangement of the half mirror 8b interposed in the light guide member 8, (1) “when viewed from the outside, it is a position that can be seen from the tip surface 8a (in other words, from the tip surface 8a. It must exist at a position on a substantially straight line). This is because if the reflective surface of the half mirror 8b cannot be seen from the outside, the metal color of the reflective surface cannot be seen in the first place. Therefore, for example, even if the half mirror 8b is interposed in the part a that cannot be seen from the front end face 8a, the effect of improving the color tone cannot be obtained. Further, in order to secure the reality of the color, it is important that the position of the half mirror 8b is (2) “inside of the front end surface 8a”. When the half mirror 8b is provided on the tip surface 8a itself, not on the inside of the tip surface 8a, the metal color itself of the half mirror 8b is visually observed, and it is far from the same color as the actual vehicle (simply a solid metal Color). The presence of a clear member (a part of the light guide material 8) on the front surface of the half mirror 8b makes it possible to reproduce realistic colors similar to the real thing for the first time. Note that the brightness is improved by bringing the half mirror 8b closer to the front end surface 8a, but if it is too close, the metal color of the half mirror 8b becomes explicit. On the contrary, if it is too far from the front end surface 8a, it becomes difficult for external light to enter the front surface of the half mirror 8b, and it becomes dark. Therefore, it is important to appropriately set the arrangement location of the half mirror 8b in consideration of the opening area and depth of the through hole.

  In consideration of the strength of the member, stability after mounting, and the like, in addition to the requirements (1) and (2) above, (3) “being outside the inner surface c of the model body 2” is preferable. Here, the form which made the headlamp light guide material 8 into one part is considered. When an external force d is applied to the integrated light guide member 8, a load (stress) concentrates on a portion corresponding to the inner surface c of the model main body 2. When the half mirror 8b is provided outside the insertion portion b, the light guide material 8 is easily broken at the joint surface between the half mirror 8b and the transparent plastic member due to the external force d, and may be damaged as a result. Becomes higher. An adhesive or the like is used for joining the half mirror 8b and the plastic member because the joint strength is weaker than the strength of the non-joined part. On the other hand, when the half mirror 8b is provided in the insertion part b outside the inner surface c, the cylindrical headlamp part (a part of the vehicle body 2) existing around the insertion part b is a reinforcing material. Since the strength is higher than that of the previous case, breakage of the light guide material 8 can be effectively suppressed.

  As shown in FIG. 5, consider a form in which the front and rear light guides 8 c and 8 d and the half mirror 8 b are made into three parts and are individually assembled to the model main body 2. In this case, one of the following two assembly procedures is adopted.

(Assembly procedure 1)
First, the front light guide 8d is inserted in front of the through hole and fixed using an adhesive or the like. In this state, the half mirror 8b is inserted into the through hole from the rear. And a part of back light guide part 8c is inserted in a through-hole from back. The rear light guide 8c itself is fixed to the model main body 2 via the lighting unit 7. Therefore, the half mirror 8b in the through hole is sandwiched between the front and rear light guide portions 8c and 8d, and is fixed in the through hole without dropping off, so that the mounting stability of the member after assembly is improved. It can be secured.

(Assembly procedure 2)
First, a part of the rear light guide 8c is inserted into the through hole from the rear. In this state, the half mirror 8b is inserted into the through hole from the front. Then, the front light guide portion 8d is inserted into the through hole from the front, and is fixed using an adhesive or the like. As in the case of the assembly procedure 1, the half mirror 8b in the through hole is sandwiched between the front and rear light guides 8c and 8d and is fixed in the through hole without dropping off. The mounting stability of the member can be ensured.

  In addition, although it is limited to the case where the assembly procedure 1 is adopted, as shown in FIG. 8, the inner diameter of a part of the through hole (rear side) is slightly increased, and the outer periphery of the rear end of the front light guide portion 8d is formed in the enlarged portion. The front light guide portion 8d can be fixed without using an adhesive by engaging the engagement portion 8f formed on the back from the rear. As a result, productivity can be improved.

  Below, the form which integrates each member which comprises the headlamp light-guide material 8 as 1 part is demonstrated. When the headlamp light guide material 8 is made into one part, it is necessary to consider the points of securing strength and productivity (for example, positioning of individual parts) when integrated. These problems can be caused by, for example, the multicolor molding method (formed pre-formed parts) as described on page 23 of the railway model magazine “RM MODELS 143 (2007-7)” published by Neko Publishing, Inc. This can be solved by using a method in which a post-process part is molded again after being set in a post-process part mold. Alternatively, this can be solved by forming three-dimensional (non-planar) portions that can be fitted to each other in the front and rear light guide portions 8c and 8d and fitting these portions. In this case, the front and rear light guides 8c and 8d are integrated (one part) with the half mirror 8b interposed (sandwich structure). For the integration, a known joining method such as an adhesive or an engaging claw can be used as appropriate. Hereinafter, the specific structural example regarding the headlamp light guide material 8 made into 1 part is shown.

  FIG. 9 is an explanatory diagram of a multi-stage sandwich structure. This type is formed of four parts including the front and rear light guides 8c and 8d and the two half mirrors 8b and 8g. A convex portion 8h protruding in a columnar shape is provided at a predetermined portion of the rear light guide portion 8c, specifically, at the center of the facing surface facing the front light guide portion 8d. On the other hand, in the center of the facing surface of the front light guide portion 8d, a concave portion 8i recessed in a columnar shape is provided. These concavo-convex portions 8h and 8i can be fitted to each other, and in the fitted state, the central axis X of the front light guide portion 8d coincides with that of the rear light guide portion 8c. The half mirror 8b has a circular shape substantially the same diameter as the recess 8i, and is housed in the bottom of the recess 8i. On the other hand, the half mirror 8g has a ring shape opened to substantially the same diameter as the convex portion 8h, and is fitted into the convex portion 8h. When integrating the parts, first, the ring-shaped half mirror 8g is fitted into the convex portion 8h of the rear light guide portion 8c, and the circular half mirror 8b is stored at the bottom of the concave portion 8i of the front light guide portion 8d. . And while maintaining this state, after aligning so that the center axes X of the front and rear light guide portions 8c and 8d are coincident with each other, they are joined with an adhesive or the like. Thereby, the headlamp light guide material 8 having a multistage sandwich structure in which the half mirrors 8b and 8g are formed in two stages is obtained.

  With this structure, there is a possibility that the boundary between the steps of the half mirrors 8b and 8g may be conspicuous. If this step is lowered, the boundary between the steps becomes inconspicuous, but the bonding strength of the uneven portions 8h and 8i decreases. Therefore, it is important to appropriately set a step height that can achieve both visual quality and bonding strength through trial manufacture and simulation of a sample. In order to make the step boundary inconspicuous, it is also effective to chamfer the corners of the uneven portions 8h and 8i or to whiten the surfaces of the uneven portions 8h and 8i with water-resistant paper or paper file. Let's go. Conversely, on the condition that the necessary bonding strength can be ensured, it is possible to make the boundary of the step (round) as a light bulb for a headlamp by reducing the diameter of the uneven portions 8h, 8i as much as possible. . In addition, you may reverse formation of the uneven | corrugated | grooved part 8h and 8i in the light guide parts 8c and 8d before and behind.

  FIG. 10 is an explanatory diagram of a cap-type sandwich structure. This type can be said to be a modification of the above-described multi-stage sandwich structure, and has a large protruding portion 8h. As shown in the figure, the ring-shaped half mirror 8g described above is omitted as the diameter of the convex portion 8h increases, but it is also possible to use this. The front and rear light guide members 8c and 8d are engaged by an engaging claw 8j.

  FIG. 11 is an explanatory diagram of the headlamp light guide member 8 using a non-planar half mirror. Unlike the planar form described above, the half mirror 8b shown in FIG. Due to this non-planar shape, the depth D from the distal end surface 8a changes continuously, and in this embodiment, gradually increases from the outer periphery toward the central axis. When the half mirror 8b is formed of, for example, a flat film material, the shape corresponds to the cross section of the headlamp light guide material 8 as shown in FIG. Cut out the film material into a cutout shape (circular shape with a cutout). If the film material is deformed and three-dimensionalized in the circumferential direction according to the fan-shaped cutout, a funnel-shaped half-mirror 8b with the central axis X as a vertex can be formed. When the half mirror 8b has a non-planar shape, external light incident from the front end surface 8a is reflected non-uniformly by a true reflection mechanism. Due to this non-uniform reflection, a gradation similar to the actual vehicle (continuous change in color) is generated in the light-off color, so that the reality as a model expression method can be further enhanced. From this point of view, the entire half mirror 8b does not necessarily have a non-planar shape, and at least a part of the half mirror 8b may be a non-planar shape.

  According to the present embodiment, the amount of light incident on the front and back of the half mirror 8b in the headlamp light-guiding member 8 that is shielded from outside light that is incident from the front end surface 8a depends on the lighting state of the light emitter 7b. Reverse. That is, when the light emitter 7b is turned off, the amount of light incident on the front side of the half mirror 8b is larger than the amount of light incident on the rear side of the half mirror 8b. As a result, even if the light emitter 7b itself does not include a reflector as used in the actual product, the external light that is specularly reflected by the half mirror 8b in front of the light emitter 7b is mainly visually observed. The metallic luster of the half mirror 8b and the clear color of the light guide 8 positioned in front of the half mirror 8b appear to shine in a whited silver color. The light-off color in the real headlight is brought about by the specular reflection of outside light and the clear color of the front glass (diffuse inside). According to this embodiment, the real headlight By adopting the same optical mechanism (specular reflection and diffusion), it is possible to reproduce the extinction color overflowing with reality. On the other hand, when the light emitter 7b is turned on, the amount of light incident on the rear side of the half mirror 8b is larger than the amount of light incident on the front side of the half mirror 8b. As a result, the light transmitted through the half mirror 8b out of the light emitted from the light emitter 7b is mainly visually observed, so that it is possible to ensure a level of lighting performance (light quantity) that is practically satisfactory. As described above, the present embodiment uses a new model expression method for expressing the light-off color with a simple structure without impairing the lighting performance in the railway vehicle model 1 that is difficult to adopt the same configuration as the actual product. It is to provide. And by adopting such a model expression method, both the lighting performance of the headlamp 3 and the reality of the color at the time of extinction can be achieved, and the product appeal power of the railway vehicle model 1 can be dramatically increased. Can do.

  Further, as one method of the present embodiment, when the front and rear light guide portions 8c and 8d are integrated with the half mirror 8b interposed, this integration is performed by fitting non-planar portions that can be fitted to each other. Can also be done. As a result, the strength at the time of integration can be ensured, and the positioning of the parts at the time of integration becomes easy, so that the productivity can be improved.

(Example)
In the following description, the headlamp mechanism according to the above-described embodiment will be referred to as “KM head” (abbreviation of “Kiratto mirror head”) for convenience. FIG. 12 is a contrast photograph in which railroad vehicle models in an unlit state are arranged. The right side is a prototype equipped with a KM head, and the left side is a normal commercial product (conventional product). In this prototype, KM-211 (visible light transmittance 16%) manufactured by Mirareed Co. is used as the half mirror 8b. While the conventional product is a toy in the so-called “black eyeball” state, the prototype has the same reality as the real product, and the difference between the two is obvious.

  FIG. 13 is a contrast photograph in which railcar models in a lighting state at the time of applying a normal lighting voltage are arranged. The right side is a prototype equipped with a KM head, and the left side is a normal commercial product (conventional product). The light quantity of the prototype in the normally lit state is slightly lower than the conventional product. However, since the original light quantity of a commercial product is very large, it is possible to secure a light quantity at a level that does not impede practical use even for a prototype. Although it is a subjective opinion of the inventor, it is rather preferable that the light quantity of the headlight of the prototype is not glaring and is elegant and shining “blow-in” (especially 165 series) Such an enka-like vehicle (meaning reverberating good old Japan) makes this “Bowin” invite the enthusiastic sorrow of mania).

  FIG. 14 is a visual subjective performance table of the comparative example and the example (KM head). The processing contents of Comparative Examples A to C are as follows.

(Comparative Example A)
The surroundings of the conventional light guide material (excluding the tip) are colored with paint.
(Comparative Example B)
The front part of a conventional light guide material is cut and the cut surface is whitened with water-resistant paper and then bonded.
(Comparative Example C)
The front part of a conventional light guide is cut and bonded with a silver foil (commercially available aluminum foil) interposed. Since the silver foil itself does not transmit light, several small holes are formed in the silver foil using a thin needle.

  As shown in the table, the KM head (this example) is overwhelmingly superior in reality when the light is turned off. The comparative example C is not preferable in that the small holes of the silver foil are darkened and light and dark unevenness occurs. On the other hand, since the half mirror 8b itself has semi-transparency, the KM head is very excellent in that uniformity can be ensured without the occurrence of uneven brightness as in Comparative Example C. On the other hand, with respect to the amount of light at the time of lighting, Comparative Example A was exceptional, Comparative Example C was at a level where there was insufficient light, and Comparative Examples B and KM heads were at a level where there was no practical problem.

  In the above-described embodiment, the 165-series express train has been described as an example. However, since the basic configuration of the N-gauge headlight light guide mechanism is the same, other types and general N-gauge vehicles of other manufacturers (trains)・ It is natural that it can be applied to a control vehicle, a locomotive, etc. The application of the present invention to an N-gauge vehicle having a product characteristic of low cost and small size is the most preferable example, but the present invention is not limited to this, and is applied to a HO gauge vehicle or the like larger than this. Naturally application is also possible. Furthermore, the present invention can be widely applied to various models (limited to those with headlamps) such as automobiles, buses, trucks, special vehicles, airplanes, ships, and even anime robots.

  In the above-described embodiment, the sandwich structure having the rear light guide portion 8c in addition to the front light guide portion 8d and the half mirror 8b has been described. However, the present invention is applicable even in a form in which the light of the light emitter 7b is directly irradiated on the rear surface side of the half mirror 8b without using the rear light guide portion 8c. As an example of such a form, there is an N gauge steam locomotive (C59) recently released from Tenshodo. In this model, a small LED chip is built in the housing of the headlight at the top of the boiler, and light from the LED chip is directly emitted from the opening on the front surface. When applying this invention to such a form, what is necessary is just to interpose the half mirror 8b between the LED chip in a housing, and the light guide part attached to the opening part of the headlamp. In this case, the headlamp housing itself functions as a light-shielding unit that blocks external light from entering the rear side of the half mirror 8b.

Appearance perspective view of railway vehicle model Mounting diagram of the lighting unit to the model body Development perspective view of lighting unit Perspective view of headlamp light guide material Explanatory drawing of optical mechanism of headlamp light guide material when extinguished Explanatory drawing of optical mechanism of headlamp light guide material during lighting The figure which shows the headlamp light guide material inserted in the through-hole The figure which shows the projection part provided in the headlamp light guide material Illustration of multi-stage sandwich structure Explanatory drawing of a cap-junction sandwich structure Explanatory drawing of headlamp light guide material using non-planar half mirror Contrast photo with unlit rail car models Contrast photo with railcar models lit Visual subjective performance table of comparative examples and examples

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Railcar model 2 Model main body 3 Headlight 4 Taillight 5 Screw 6 Carriage 7 Lighting unit 7a Printed circuit board 7b Light-emitting body 7c Contact spring 7d Lower case 7e Upper case 7f Front case 8 Headlight light guide 8a Front end surface 8b Half mirror 8c Rear light guide part 8d Front light guide part 8e Opposing surface 8f Engagement part 9 Taillight light guide material

Claims (4)

In the model with headlights,
An opening provided in a portion corresponding to a headlamp;
A light emitter capable of controlling the light emission state;
A light guide mechanism that is inserted into the opening, guides the light emitted from the light emitter, and emits light outward from the tip surface exposed from the opening;
A half mirror interposed in a position that can be seen from the tip surface, in the light guide mechanism inside the tip surface;
A model with a headlamp, comprising: a light shielding unit that blocks external light incident on the rear surface side of the half mirror except for external light incident through the half mirror from the opening. In the model with headlights,
An opening provided in a portion corresponding to a headlamp;
A light emitter capable of controlling the light emission state;
A light guide mechanism that is inserted into the opening, guides the light emitted from the light emitter, and emits light outward from the tip surface exposed from the opening;
In the light guide mechanism inside the front end surface, and having a half mirror interposed at a position that can be seen from the front end surface,
The model with a headlamp, wherein the half mirror has a non-planar shape in which a depth from the tip surface continuously changes. In the model with headlights,
An opening provided in a portion corresponding to a headlamp;
A light emitter capable of controlling the light emission state;
A half mirror provided at a position that can be seen through the opening;
A first light guide for guiding the light emitted from the light emitter to the rear surface side of the half mirror;
A second light guide provided on the front side of the half mirror in the opening,
The first light guide and the second light guide are integrated with the half mirror interposed by fitting non-planar portions that can be fitted to each other. A model with a headlight. In the headlamp light guide mechanism of the model with a headlamp that turns on the headlamp by the light emitted from the light emitter,
Half mirror,
A first light guide for guiding the light emitted from the light emitter to the rear surface side of the half mirror;
A second light guide provided on the front side of the half mirror in an opening provided in a portion corresponding to the headlamp in the model with the headlamp;
The first light guide part and the second light guide part are integrated with the half mirror interposed by fitting non-planar portions that can be fitted to each other. And headlight light guide mechanism.