JP2015027827A - Lamp fitting cover structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lamp fitting cover structure which secures easiness of attachment and detachment of a cover and prevents the cover from being easily removed.SOLUTION: A lamp fitting cover structure includes: an attachment base part 3 for attaching a lamp fitting 2 to a ceiling 1 of a vehicle; a pair of rails 7, 8 which are formed at the attachment base 3 sandwiching the lamp fitting 2 therebetween; and a cover 5 which is detachably provided at the rails 7, 8 and covers the lamp fitting 2. The cover 5 includes: a cover body 11 which covers a space between the rails 7, 8; and spring parts 14, 15 which are erected from both sides of an upper surface of the cover body 11 and are placed in contact with the rails 7, 8 by spring forces. Inclined surfaces 7b, 14c, which make surface contact with each other, are respectively formed at the rail 7 and the spring part 14. Similarly, inclined surfaces 8b, 15c, which make surface contact with each other, are respectively formed at the rail 8 and the spring part 15. Protruding parts 18 and recessed parts 19 which fit with each other are formed on the inclined surfaces 7b, 14c, 8b, 15c.

Description

  The present invention relates to a lamp cover structure provided on the ceiling of a vehicle such as a bus.

  There are various types of lamps provided on the ceiling of a vehicle such as a bus, such as a lamp having a fluorescent tube and a lamp having a light bulb. Some of these lamps are covered with a cover. In general, the cover is detachable from the ceiling so that fluorescent tubes, light bulbs and the like can be exchanged.

JP 2007-30697 A

  As shown in FIG. 4, there is a type in which the cover 20 includes spring portions 23 and 24 that extend upward and have claws 21 and 22 formed on the top. The cover 20 of this type is mounted on the mounting base 25 by pressing the claws 21 and 22 against the rails 26 and 27 of the mounting base 25 provided on the ceiling (not shown) with the spring force of the springs 23 and 24. It has a structure.

  By the way, the cover 20 has been used for many years, and the spring force of the spring portions 23 and 24 is weakened while being repeatedly attached to and detached from the attachment base 25, and there is a problem that the cover 20 may be easily detached from the attachment base 25. .

  An object of the present invention is to provide a lamp cover structure that can prevent the cover from being easily detached while ensuring the ease of attaching and detaching the cover.

  In order to achieve the above-described object, the lamp cover structure of the present invention includes a mounting base for mounting a lamp on a vehicle ceiling, a pair of rails formed on the mounting base across the lamp, and a detachable attachment to the rail. A lamp cover structure including a cover that is freely provided and covers the lamp, wherein the cover stands up from both sides of the upper surface of the cover main body that covers between the rails, and comes into contact with the rail with a spring force The rail and the spring portion are formed with inclined surfaces that come into surface contact with each other, and the inclined surfaces are formed with concavities and convexities that fit with each other.

  The uneven portion may be formed on the spring portion, and the uneven portion may be formed on the rail.

  The unevenness may be formed in a circular arc shape in cross section.

  According to the lamp cover structure of the present invention, it is possible to prevent the cover from being easily detached while ensuring the ease of attaching and detaching the cover.

The lamp cover structure which concerns on one embodiment of this invention is shown, (a) is front sectional drawing, (b) is a principal part enlarged view of (a). (A) is front sectional drawing of the lamp cover structure which removed the cover, (b) is a principal part enlarged view of (a). It is a schematic front sectional view of the lamp cover structure attached to the ceiling of the vehicle. It is front sectional explanatory drawing explaining the conventional lamp cover structure.

  Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 3 is a schematic cross-sectional view of the ceiling portion on the right side of the bus traveling direction as viewed from the front (front).

  As shown in FIG. 3, an attachment base 3 for attaching the lamp 2 is attached to the ceiling 1 of the bus together with the lamp 2. The attachment base 3 is attached to the ceiling on the inner side in the vehicle width direction from the cooling duct 4 provided on the ceilings on both sides in the vehicle width direction, for example. Further, a cover 5 that covers the lamp 2 is detachably mounted on the mounting base 3.

  As shown in FIG. 1A and FIG. 3, the mounting base 3 includes a base body 6 formed along the ceiling 1 of the vehicle and to which the lamp 2 is mounted, and a pair provided on the base body 6 across the lamp 2. Rails 7 and 8, and an edge receiving portion 9 for receiving an edge portion of the cover 5 which will be described later and which is provided on the rail 8 positioned on the inner side in the vehicle width direction. The mounting base 3 is formed to extend in the vehicle traveling direction, and can support the lamp 2 that is long in the vehicle traveling direction over the entire length. The base main body 6, the rails 7 and 8, and the edge receiving portion 9 are integrally formed of resin by extrusion molding or the like.

  The lamp 2 is, for example, a pair of sockets 2a attached to the base body 6 so as to be separated from each other in the vehicle traveling direction, a reflector 2b attached to the base body 6, and a fluorescent light provided between the sockets 2a and extending in the vehicle traveling direction. A tube 2c.

  The rails 7 and 8 are formed in a wall shape that protrudes downward from the base body 6 and extends along the lamp 2. The rails 7 and 8 are formed with inclined portions 7a and 8a that are inclined inwardly between the rails 7 and 8 (in a direction toward the center between the rails 7 and 8) as they go downward. Inclined surfaces 7b and 8b (hereinafter referred to as rail inclined surfaces) between the rails 7 and 8 of the inclined portions 7a and 8a are formed upward to receive claws 14b and 15b of the cover 5 to be described later. It comes in surface contact with the claws 14b, 15b of the cover 5.

  The cover 5 includes a cover main body 11 that covers between the rails 7 and 8, cover extension portions 12 and 13 that extend from both sides of the cover main body 11 in the vehicle width direction, and spring portions 14 that stand from both sides of the upper surface of the cover main body 11. 15. The cover main body 11, the cover extension parts 12 and 13, and the spring parts 14 and 15 are integrally formed of resin by extrusion molding or the like.

  The cover main body 11 is made of a transparent resin formed in a plate shape, and allows the light of the lamp 2 to pass through.

  The cover extensions 12 and 13 are curved so that the edges on both sides in the vehicle width direction face upward. In particular, the cover extension 13 on the inner side in the vehicle width direction is formed so as to contact the edge receiving portion 9 of the mounting base 3 when the cover 5 is mounted on the mounting base 3, and restricts the upward movement of the cover 5. Function as a stopper.

  The spring portions 14 and 15 are set so as to be positioned between the rails 7 and 8 when the cover 5 is attached to the attachment base portion 3. The spring portions 14 and 15 are formed in a plate shape that extends upward and extends in the vehicle traveling direction, and the upper portion is outward between the spring portions 14 and 15 (a direction away from the center between the spring portions 14 and 15) and the inner portion. It is bent alternately. Specifically, the spring portions 14 and 15 are formed in a plate shape extending upward from the cover body 11 and the spring portions 14 and 15 outward from the upper ends of the spring portion main bodies 14a and 15a. And claws 14b and 15b formed by bending at an obtuse angle, and mounting guides 16 and 17 formed by bending at an obtuse angle from the upper ends of the claws 14b and 15b inwardly between the spring portions 14 and 15.

  When the cover 5 is attached to the attachment base 3, the claws 14b and 15b have inclined surfaces 14c and 15c (hereinafter referred to as claw inclined surfaces) between the spring portions 14 and 15 on the rail inclined surfaces 7b and 8b. The rails 7 and 8 are engaged by overlapping. That is, the claws 14b and 15b and the rails 7 and 8 are engaged with each other when the corresponding claw inclined surfaces 14c and 15c and the rail inclined surfaces 7b and 8b are in surface contact.

  The mounting guides 16 and 17 are formed so that the interval between the upper ends is narrower than the interval between the lower ends of the rails 7 and 8, and the spring portions 14 and 15 are placed between the rails 7 and 8 by being pressed against the rails 7 and 8, respectively. It guides between the rails 7 and 8 by bending in the direction. In addition, a stopper portion 10 for restricting the upward movement of the cover 5 is formed on the spring portion 14 located on the outer side in the vehicle width direction of the pair of spring portions 14 and 15.

  In particular, as shown in FIGS. 1 (a) and 1 (b), the claws inclined surfaces 14c, 15c and the rail inclined surfaces 7b, 8b are formed with concavities and convexities 18, 19 that fit each other. Specifically, convex portions 18 extending in the vehicle traveling direction are formed on the claw inclined surfaces 14c and 15c, and groove-shaped concave portions 19 that are fitted to the convex portions 18 are formed on the rail inclined surfaces 7b and 8b. Yes. The convex portion 18 and the concave portion 19 are each formed in a circular arc shape smaller than a semicircle, and can be easily detached by applying a certain force.

  In addition, the uneven | corrugated shape is not restricted to this. What is necessary is just to be able to fasten the cover 5 without impairing the ease of attachment / detachment of the cover 5. For example, the irregularities 18 and 19 may be set to have a triangular cross section. In this case, it is preferable to adjust the force necessary for attaching and detaching the cover as unevenness smaller than the unevenness 18 and 19 having a circular arc cross section.

  Next, the operation of this embodiment will be described.

  As shown in FIGS. 2A and 2B, when the cover 5 is attached to the attachment base 3, the cover 5 is arranged so that the upper ends of the mounting guides 16 and 17 are positioned between the rails 7 and 8. The cover 5 is moved upward. When the respective mounting guides 16 and 17 are brought into contact with the rails 7 and 8, the cover 5 is pushed further upward. As a result, the spring portions 14 and 15 are bent inward between the rails 7 and 8 and inserted between the rails 7 and 8 while escaping from the rails 7 and 8. When the mounting guides 16 and 17 are moved upward beyond the lower ends of the rails 7 and 8, the shapes of the spring portions 14 and 15 are gradually restored by their own spring force, and the upper end side is outward between the rails 7 and 8. spread. Thereby, the convex part 18 of the spring parts 14 and 15 contacts the rail inclined surfaces 7b and 8b, and the convex part 18 of the spring parts 14 and 15 is placed on the rail inclined surfaces 7b and 8b. Thereafter, when the cover 5 is further pushed upward, the convex portions 18 of the spring portions 14, 15 slide along the rail inclined surfaces 7b, 8b, as shown in FIGS. 1 (a) and 1 (b). The convex portions 18 of the spring portions 14 and 15 and the concave portions 19 of the rails 7 and 8 are fitted, and the rails 7 and 8 and the spring portions 14 and 15 are completely engaged. At this time, since the convex portion 18 and the concave portion 19 are fitted with a click feeling of “click”, the operator can sensuously grasp with the sense and sound transmitted to the hand that the installation of the cover 5 is completed. 5 can be securely and easily attached to the attachment base 3.

  Further, even when the spring force of the spring portions 14 and 15 is weakened due to aging or the like, as long as the convex portion 18 of the spring portions 14 and 15 and the concave portion 19 of the rails 7 and 8 are fitted, the conventional method is used. Thus, the position of the cover 5 is not lowered and is not easily removed, and the cover 5 can be securely attached to the attachment base 3.

  When removing the cover 5 from the mounting base 3, the spring portions 14 and 15 are bent inwardly between the rails 7 and 8 along the inclination of the rails 7 and 8 by pulling the cover 5 downward, and the claw inclined surfaces 14c, 15c is separated from the rail inclined surfaces 7b and 8b, and the fitting between the concave portion 19 and the convex portion 18 is released, so that the cover 5 does not become difficult to remove from the mounting base 3.

  As described above, the rails 7 and 8 and the spring portions 14 and 15 are formed with the rail inclined surfaces 7b and 8b and the claw inclined surfaces 14c and 15c that are in surface contact with each other. The rail inclined surfaces 7b and 8b and the claw inclined surfaces are formed. 14c and 15c are formed with concavities and convexities 18 and 19 which are fitted to each other, so that even if the spring force of the spring portions 14 and 15 is weakened, as long as the concavities and convexities 18 and 19 are fitted to each other. Can prevent the cover 5 from coming off easily. Further, by pulling the cover 5 downward, the irregularities 18 and 19 can be separated from each other, so that it is possible to prevent the cover 5 from being attached and detached more than before.

  Moreover, since the convex part 18 is formed in the spring parts 14 and 15, and the recessed part 19 is formed in the rails 7 and 8, the strength reduction by the recessed part 19 can be easily prevented. That is, since the rails 7 and 8 have a higher degree of design freedom than the spring portions 14 and 15 and can be easily obtained in strength, the strength can be easily ensured by adjusting the thickness and shape of the rails 7 and 8. . In addition, since the convex portions 18 are formed on the spring portions 14 and 15, a feeling of wearing when the cover 5 is attached to the fixed base portion is improved.

  Since the irregularities 18 and 19 are formed in a circular arc shape in cross section, there are no corners that are easily worn, and the shape can be prevented from being broken even if the cover 5 is repeatedly attached and detached.

  Even if the concave portions 19 are formed in the spring portions 14 and 15 and the convex portions 18 are formed in the rails 7 and 8, it is possible to prevent the cover 5 from being easily detached while ensuring the ease of attaching and detaching the cover 5. it can.

  Moreover, although what demonstrated the spring parts 14 and 15 between the rails 7 and 8 was demonstrated, conversely, it relates to this embodiment in the lamp cover structure where the rails 7 and 8 are arrange | positioned between the spring parts 14 and 15 The invention may be applied.

  Moreover, the lamp cover structure according to the present embodiment may be applied to a lamp that is long in the vehicle width direction, or may be applied to a lamp of a vehicle other than a bus.

DESCRIPTION OF SYMBOLS 1 Ceiling 2 Lamp 3 Mounting base 5 Cover 7 Rail 8 Rail 7b Rail inclined surface (inclined surface)
8b Rail inclined surface (inclined surface)
11 Cover body 14 Spring portion 15 Spring portion 14c Claw inclined surface (inclined surface)
15c Nail inclined surface (inclined surface)
18 Convex part 19 Concave part

Claims (3)

A lamp cover structure comprising: a mounting base for mounting a lamp on the ceiling of a vehicle; a pair of rails formed on the mounting base with the lamp sandwiched therebetween; and a cover that is detachably provided on the rail and covers the lamp Because
The cover includes a cover main body that covers between the rails, and a spring portion that rises from both sides of the upper surface of the cover main body and contacts the rail with a spring force,
The lamp cover structure according to claim 1, wherein the rail and the spring portion are formed with inclined surfaces that are in surface contact with each other, and the inclined surfaces are formed with concavities and convexities that fit with each other.   The lamp cover structure according to claim 1, wherein the uneven portion is formed on the spring portion, and the uneven portion is formed on the rail.   The lamp cover structure according to claim 1, wherein the unevenness is formed in an arc shape in cross section.

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