KR20010015195A - Fixed structure of room lamp - Google Patents

Abstract

PURPOSE: To reduce the man-hours of assembly in automobile assembly lines and ensure steady fixation by fixing a roof trim and a room lamp simultaneously to the roof frame of automobile bodies. CONSTITUTION: A room lamp 1 and a roof trim 2 offer temporary fixing means, and the room lamp 1 and a roof frame 3 offer permanent fixing means having springs 50. When temporarily fixed together by the temporary fixing means, the room lamp 1 and roof trim 2 are permanently fixable to the roof frame 3 by the permanent fixing means. In an automobile assembly line, the simultaneous fixation of the room lamp 1 and roof trim 2 to the roof frame 3 reduces the assembly man-hour accordingly.

Description

Fixed structure of room lamp {FIXED STRUCTURE OF ROOM LAMP}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixed structure of a room lamp. In particular, a room lamp can be fixed to a ceiling frame of a vehicle body at the same time, thereby reducing the number of assembly (fixed) work steps in an automobile assembly line. It relates to a fixed structure of.

Conventional technology

Conventional room lamp fixing structure is generally installed in the ceiling frame of the room lamp and the vehicle body, and is composed of fixing means for fixing the room lamp and the ceiling frame. In the conventional lamp fixing operation, the room lamp is fixed to the ceiling frame of the vehicle body in the automobile assembly line, and then the room lamp is fixed to the ceiling frame by the fixing means.

Problems to be Solved by the Invention

However, the conventional room lamp fixing structure is composed of a fixing means for fixing the room lamp and the ceiling frame, and is configured separately from the fixing means for fixing the ceiling frame and the ceiling trim. Therefore, in the automobile assembly line, since the fixing work of the ceiling frame and the ceiling trim and the fixing work of the ceiling frame and the room lamp are performed separately, there is a problem in the process surface of the assembly work in the automobile assembly line.

An object of the present invention is to fix the room trim and the room lamp to the ceiling frame of the vehicle body at the same time, to reduce the number of steps of the assembling work in the vehicle assembly line, and to further secure the room lamp fixing structure that can be securely fixed. In providing.

Means to solve the problem

The present invention to achieve the above object,

A temporarily fixed means installed in the room lamp and the ceiling trim, and the room lamp and the ceiling trim interlocked with each other;

It is characterized in that it is provided in the room lamp and the ceiling frame, and the main fixing means is fixed to the room lamp and the ceiling frame temporarily fixed to the ceiling trim by the temporary fixing means.

As a result, the room lamp fixing structure of the present invention first temporarily fixes the room lamp and the ceiling trim by the temporary fixing means before placing them on the automobile assembly line, and then assembles the temporarily fixed room lamp and the ceiling trim (ceiling sub ASSY). The room lamps can be fixed to the ceiling frame by elastically abutting the room lamp side springs to the ceiling frame side fixing through-hole edges by the fixing means. Accordingly, in the automobile assembly line, the ceiling trim and the room lamp can be fixed to the ceiling frame at the same time, thereby reducing the number of assembly operation steps in the automobile assembly line.

1 is a longitudinal cross-sectional view showing an embodiment of the fixing structure of the room lamp of the present invention, before the fixing of the room lamp, the ceiling trim and the ceiling frame;

FIG. 2 is a longitudinal sectional view showing a fixed state of a room lamp and a ceiling trim; FIG.

Figure 3a is a longitudinal cross-sectional view showing the fixed state of the room lamp, ceiling trim and ceiling frame,

Fig. 3B is a longitudinal cross-sectional view showing the positional displacement of the room lamp in the longitudinal direction and similarly showing the fixed state of the room lamp, the ceiling trim and the ceiling frame;

4 is a IV view in FIG. 3, FIG.

5 is a bottom view showing three metal sheet insert molding states;

6 is a cross-sectional view taken along the line VI-VI in FIG. 4;

7 is a cross-sectional view taken along line VII-VII in FIG. 4;

8 is a cross-sectional view taken along line VII-VII in FIG. 4,

9 is an explanatory front view showing a contact state between a movable contact ball and a fixed contact;

10 is a perspective view in FIG. 9,

11 is a perspective view of a first metal plate,

12 is a perspective view of a second metal plate,

13 is a perspective view of a third metal plate,

14 is a partially enlarged longitudinal sectional view showing the main fastening state of the main fastening means;

15 is a partially enlarged longitudinal sectional view showing a temporarily fixed state of the temporarily fixed means;

FIG. 16 is an XVI view in FIG. 15. FIG.

(Explanation of symbols for the main parts of the drawing)

1: room lamp 10: lamp housing

11: lens 12: shift control knob

120: movable contact ball 13: light source valve

14,15,16: metal plate 150,160: holder part

140, 141, 151: connector terminal 161, 142, 143: fixed contact

144,145,152,162: wiring portion 146: reflector plate portion

147: jumper cut 2: ceiling trim

20: base material 21: coating material

22: recess 23: opening

3: ceiling frame 30: recess

31: horizontal portion 4: temporary fixing means

40: engaging click 41: engaging cutting

5: main fixing means 50: spring

51: fixed through hole

Embodiment of the invention

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of the room lamp fixing structure of this invention is described with reference to an accompanying drawing.

In the figure, 1 is a room lamp. This room lamp 1 is comprised from the lamp housing 10, the lens 11, the switching operation knob 12, and the light source valve 13 like FIG.

The lamp housing 10 is made of an insulating member such as a synthetic resin. In this example, three metal plates 14, 15, and 16 are insert-molded. In this lamp housing 10, as shown in Fig. 5, the place where the two springs 50 of the main fixing means 5 described later are located, the light source valve 13, the holder portions 150 and 160 described later, and the reflecting plate described later. The opening part 100 is provided in the place where the part 146 is located, and the place where the two jumper cut parts 147 mentioned later are located, respectively.

The three metal plates 14, 15, and 16 are elastic and conductive plates, two holder portions 150, 160 for detachably holding the two springs 50 and the light source valve 13, and a power supply connector. Three connector terminals (power connector) that are electrically and detachably connected to a connector terminal (not shown, a power supply such as a car battery, a power supply that interlocks with a door opening and closing, and a connector terminal electrically connected to each other) The terminal unit 140, the door connector terminal unit 141, the as connector terminal unit 151, and the predetermined contact described later by being electrically connected to each other by switching between the movable contact balls 120 of the switching operation knob 12. Three fixed contact portions (first fixed contact portion 161, second fixed contact portion 142, and third fixed contact portion 143) constituting an electric circuit, the holder portions 150 and 160, and the connector terminal Wiring section for wiring between the portions 140, 141, 151 and the fixed contact portions 161, 142, 143 ( The first wiring portion 144, the second wiring portion 145, the third wiring portion 152, the fourth wiring portion 162, and the shade portion and / or the reflecting plate portion 146 (hereinafter simply referred to as a reflecting plate portion) Consists of

In the three metal plates 14, 15, and 16, each of the metal plates 14, 15, and 16 has a holder portion 150, 160, connector terminal portions 140, 141, 151, fixed contact portions 161, 142, 143, and a wiring portion. Instead of having (144,145,152,162) and reflecting plate portions 146, the three metal plates 14, 15, and 16 are entirely holder portions 150, 160, connector terminal portions 140, 141, 151, fixed contact portions 161, 142, 143, and wiring portions 144, 145, 152, 162. ) And a reflecting plate portion 146.

That is, as shown in FIG. 11, the first metal plate 14 includes the power connector terminal 140, the door connector terminal 141, the second fixed contact 142, and the third fixed contact 143. And a first wiring portion 144, a second wiring portion 145, a reflecting plate portion 146, and two jumper cut portions 147. The two jumper cut parts 147 are cut parts at the time of insert molding, and the power connector terminal part 140, the door connector terminal part 141, the second fixed contact part 142 of the first metal plate 14, The third fixed contact portion 143, the first wiring portion 144, the second wiring portion 145 side and the reflecting plate portion 146 side are separated. In other words, by configuring in this way, the number of parts is reduced and the cost is reduced.

In addition, as shown in FIG. 12, the second metal plate 15 includes a spring 50, a holder part 150, an earth connector terminal part 151, and a third wiring part 152.

In addition, as shown in FIG. 13, the third metal plate 16 includes a holder part 160, a first fixed contact part 161, and a fourth wiring part 162.

The metal plates 14, 15 and 16 are provided with small through holes 148, 153 and 163 for the resin to penetrate. The holder portions 150 and 160 are provided with fitting holes 154 and 164 to which the light source valve 13 is fitted. In addition, the first fixed contact portion 161 is provided with a fitting groove 165 to which the movable contact ball 120 is fitted.

6 to 8, the lens 11 is detachably attached to the lower surface of the lamp housing 10 (lower surface when the room lamp 1 is fixed to the ceiling in the vehicle). In addition, the switching operation knob 12 is rotatably attached to the lower surface of the lamp housing 10 by a screw 121 as shown in FIG. The knob end portion 122 of the switching operation knob 12 protrudes outward from the lens 11, and the movable contact ball 120 is disposed at the end opposite to the knob end portion 122 of the switching operation knob 12. ) Is attached via a spring 123. In addition, the light source valve 13 is detachably held to the holder parts 150 and 160 as shown in FIG. 6.

4, 9, and 10, when the switching operation knob 12 is located at " OFF ", the movable contact ball 120 is inserted into the fitting groove 165 of the first fixed contact portion 161. FIG. Since it is in the fitted state, the electric circuit is in the OFF state, and the light source valve 13 is in the OFF state. When the switching operation knob 12 is switched to "ON", the movable contact ball 120 comes out of the fitting groove 165 to be connected over the first fixed contact portion 161 and the second fixed contact portion 142. The electric circuit is turned ON, and the light source valve 13 is turned on. In addition, when the switching operation knob 12 is switched to "DOOR", the movable contact ball 120 emerges from the fitting groove 165 in the same manner as the first fixed contact portion 161 and the third fixed contact portion ( 143), the electric circuit is formed through the door. If the door is closed in this state, the electric circuit is in the OFF state, and the light source valve 13 is in the OFF state, while the door is opened. The electric circuit is turned ON, so that the light source valve 13 is turned on. In this way, by switching the switching operation knob 12, the movable contact ball 120 is switched to configure the predetermined electric circuit.

In the figure, 2 is a ceiling trim. The ceiling trim 2 is installed in the interior ceiling of a vehicle as shown in Figs. 1 to 3, and is, for example, a base 20 such as foamed urethane or the like, and a felt formed on the bottom surface of the base 20. It consists of coating | covering material 21, such as these. In the ceiling trim 2, the room lamp accommodating recess 22 is recessed upward in a portion where the room lamp 1 is set. Moreover, the opening part 23 is provided in the bottom part of the recessed part 22 of this ceiling trim 2. The opening 23 is provided so as not to obstruct the fixing between the two springs 50 described later and the edge of the fixed through hole 51 of the ceiling frame 3 described later.

In the figure, 3 is a ceiling frame of the vehicle body. 1 to 3, as shown in Figs. 1 to 3, the concave portion 30 concave upward from the middle portion by press working or the like and the horizontal portions 31 on both the left and right sides are extended in the longitudinal direction, respectively. The horizontal portion 31 of the ceiling frame 3 will be described later when the room lamp 1 and the ceiling trim 2 temporarily fixed to the ceiling frame 3 by the temporarily fixing means 4 described later. The two engaging clicks 40 of the temporary fixing means 4 and the ceiling frame 3 are provided so as not to interfere with each other (see Fig. 7).

As shown in FIGS. 1 to 3, the room lamp 1 and the ceiling trim 2 are provided with temporary fixing means 4 to which the room lamp 1 and the ceiling trim 2 are temporarily fixed. The temporary fixing means 4 is constituted by a fixed click 40 provided on the side of the room lamp 1 and an engaging cut portion 41 provided on the edge of the opening 23 on the ceiling trim 2 side. In addition, although the cross-sectional hatching of the ceiling trim 2 is abbreviate | omitted in FIG. 1, FIG. . In addition, this temporary fixing means 4 is provided in the place and two places which are somewhat separated from the place of the switching operation knob 12 vicinity.

The engaging click 40 is integrally protruded upward from the lamp housing 10, and the click forms a lance shape. The engaging click 40 has a wrapping amount of dimension A with respect to the edge of the opening 23 of the ceiling trim 2 as shown in FIG. This lap amount (A) has a temporary fixing force such that the room lamp (1) and the ceiling trim (2) temporarily fixed by the temporary fixing means (4) do not fall off easily until they are fixed to the ceiling frame (3). It shall be obtained. In addition, the height B of the engaging click 40 is made larger than the thickness C of the ceiling trim 2, and the opening of the ceiling trim 2 is formed when the engaging click 40 is press-fitted to the engaging cut portion 41. The edge of 23 is elastically deformed to facilitate the press-fit of the engaging click 40 and to ensure the engagement of the engaging click 40. In Fig. 15, reference numeral 42 denotes a through hole for removing the molding die when integrally forming the engaging click 40 in the lamp housing 10.

The room lamp 1 and the ceiling frame 3 have the room lamp 1 and the ceiling temporarily fixed to the ceiling trim 2 by the temporarily fixing means 4 as shown in FIGS. 1 to 3. The main fastening means 5 to which the frame 3 is fixed is provided. This main fixing means 5 consists of the spring 50 provided in the room lamp 1 side, and the fixed through-hole 51 provided in the ceiling frame 3 side. The main fastening means 5 is provided at two places in the vicinity of the switching operation knob 12, and at a place separated from the diagonal line.

The spring 50 is integral with the metal plate 15 and is integrally installed in the lamp housing 10 of the room lamp 1 by insert molding. As shown in FIG. 14, the spring 50 is buried in the lamp housing 10 and upwardly bent from the buried portion 500 to be <-shaped or bent downward. It consists of an elastic part 501 which is folded and folded, and a coupling part 502 which is bent horizontally in the elastic part 501 or is bent in a <-shape in the K direction. The direction of elastic action of these two springs 50 is located in the longitudinal direction of the room lamp 1.

On the other hand, the fixed through hole 51 is provided in the positive horizontal portion 30 of the ceiling frame 3 as shown in FIG. One fixed through hole 51 may be provided for each of the two springs 50, or one for each of the two springs 50.

The fixing structure of the room lamp of the present invention in this embodiment has the above configuration, and the fixing operation of the room lamp will be described below.

First, before placing on the automobile assembly line, the coupling click 40 of the room lamp 1 is press-fitted to the engaging cut portion 41 of the ceiling trim 2 to temporarily fix the room lamp 1 and the ceiling trim 2. Temporarily fixed by means 4 (engagement click 40, engaging cut 41). At this time, the room lamp 1 is accommodated in the recess 22 of the ceiling trim 2, and the spring 50 of the main fastening means 5 is located in the opening 23 of the ceiling trim 2 ( 1, 2, 15 and 16).

Then, the ceiling lamp ASY of the room lamp 1 and the ceiling trim 2 temporarily fixed by the temporarily fixing means 4 are placed on the automobile assembly line. In this automobile assembly line, the spring 50 of the room lamp 1 is elastically coupled to the fixed through-hole 51 of the ceiling frame 3 so that the room lamp 1 and the ceiling trim 2 are suspended from the ceiling frame 3. ) By the fixing means 5 (spring 50, the fixed through hole 51). At this time, the engaging click 40 does not interfere with the horizontal portion 31 of the ceiling frame 3 (see FIGS. 2, 3, 7 and 14).

As described above, the fixing structure of the room lamp of the present invention can fix the ceiling trim 2 and the room lamp 1 simultaneously to the ceiling frame 3 in the automobile assembly line. The reduction of the number of processes of the assembling work can be achieved.

In particular, in this embodiment, since the spring 50 on the side of the room lamp 1 is elastically coupled to the edge of the fixed through hole 51 on the ceiling frame 3 side, as shown in FIG. 502 and the edge of the fixed through hole 51 are elastically coupled by the wrapping amount D. Therefore, the room of the main fixing means 5 when the main assembly ASY between the room lamp 1 and the ceiling trim 2 temporarily fixed by the temporary fixing means 4 is fixed to the ceiling frame 3. Even if there is a positional deviation (accumulated crossover of parts) between the spring 50 on the lamp 1 side and the fixed through hole 51 on the ceiling frame 3, the positional deviation can be absorbed by the wrap amount D. .

For example, with respect to the fixed state of FIG. 3A, as shown in FIG. 3B, the position is the dimension E (the fixed center (0-0) shown in FIG. 3A) and the fixed end (0'-0 ') shown in FIG. Even if there is a deviation to the right by the dimension), the positional deviation E can be absorbed by the wrap amount D, and the spring 50 does not escape from the edge of the fixed through hole 51 and the room lamp 1 The ceiling trim 2 can be fixed to the ceiling frame 3 reliably. At this time, the bending amount of the left and right springs 50 is changed, and the wrap amount D is also changed.

In addition, the positional deviation between the room lamp 1 side and the ceiling frame 3 side is the longitudinal direction of the room lamp 1, but in addition to the positional deviation in the longitudinal direction, the positional deviation of the room lamp 1 in the short direction or the top and bottom thereof is increased. The positional deviation in the axial circumferential direction can be sufficiently absorbed. For example, the width of the spring 50 is made smaller than the width of the fixed through hole 51.

Further, since one temporary fixing means 4 and one main fixing means 5 are provided in the vicinity of the switching operation knob 12, the temporary fixing means 4, the main fixing means 5 and the switching operation knob ( 12) The length of the arm of the rotation moment between the two becomes smaller, the room lamp (1), the ceiling trim (2), the ceiling frame (3) mutually fixed against the impact during the switching operation of the switching operation knob 12 accordingly Can withstand enough.

In addition, since the two main fastening means 5 are located on an approximately diagonal line of the room lamp 1 of a rectangular shape (rectangle when viewed from below or from above), the longitudinal axis of the room lamp 1 is arranged in a short direction. Vibration (rotation) around the shaft can be reliably prevented. In the room lamp fixing structure of the present invention, the two main fixing means 5 may be positioned above in the short axial direction or in the longitudinal direction.

The ceiling trim 2 may be fixed to the ceiling frame 3 by fixing means other than the main fixing means 5 of the room lamp 1. The fixing means includes, for example, a fixing means for a map lamp, a lamp fixing means for right and left sides in the rear of the room, a fixing means for a ceiling handle member, and the like.

As is apparent from the above, the room lamp fixing structure of the present invention first temporarily fixes the room lamp and the ceiling trim by the temporary fixing means before placing them on the vehicle assembly line, and then applies the temporarily fixed room lamp and the ceiling trim to the automobile assembly line. The room lamp can be fixed to the ceiling frame by this fixing means. As a result, the ceiling trim and the room lamp can be fixed to the ceiling frame at the same time in the automobile assembly line, thereby reducing the number of steps for the assembly work in the automobile assembly line.

Claims (6)

In the fixed structure of the room lamp for fixing the ceiling trim and the room lamp at the same time to the ceiling frame of the body, Temporary fixing means installed in the room lamp and the ceiling trim, the room lamp and the ceiling trim being temporarily fixed to each other; A fixed structure of the room lamp provided in the room lamp and the ceiling frame, and the room lamp fixed to the ceiling trim by the temporarily fixing means and the main fixing means in which the ceiling frame is fixed. . The method of claim 1, wherein the fixing means is composed of a spring integrally provided on the room lamp side and a fixed through hole provided on the ceiling frame side, And said spring is capable of absorbing positional deviations from said fixed through hole. The method of claim 1, wherein the spring of the fixing means is made of a plate material having elasticity and conductivity, and the insert is molded with a plate material having a different elasticity and conductivity in the lamp housing of the room lamp, the plate material and the spring And any one of a holder portion, a connector terminal portion, a fixed contact portion, a wiring portion, a shade portion, and a reflecting plate portion. The fixing structure of a room lamp according to claim 1, wherein two main fixing means are provided on a diagonal line of said room lamp. The fixing structure of a room lamp according to claim 1, wherein said temporarily fixing means comprises a joining click provided integrally with said room lamp and a joining hole provided in said ceiling trim. 2. The fixed structure of a room lamp according to claim 1, wherein said main fixing means and said temporary fixing means are provided in the vicinity of a switching operation knob of said room lamp.