JPH0148602B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an improved structure of a storage portion of a desk lamp that stores electrical components.

[Background of the invention]

Conventionally, the case that covers the mounting base for attaching electrical components is divided into front and back parts and assembled together. After the rear case is screwed to the mounting base, the front case is attached to the rear case or The structure was such that it was assembled onto a mounting stand.
However, this type of structure has problems such as molding defects or resin flow marks in this part, especially since the front case has a boss part for tightening a large number of screws. It was something that remained.

[Purpose of the invention]

SUMMARY OF THE INVENTION The present invention provides a desk lamp mounting base and a case covering the mounting base that can improve moldability and assembly.

[Summary of the invention]

That is, the present invention provides a desk lamp that includes a support having a lampshade at the tip, a mounting base for attaching electrical components provided between a base that holds the support, and a case that covers the mounting base. Prepare a mounting base with an engagement hole, a front case that has a claw that engages with the engagement hole of this mounting base and covers the front of the mounting base, and an opening in the front case to prevent the claw of the front case from opening. By providing a rear case that covers the outside of the main body and is attached to the mounting base, it is possible to avoid having bosses for screwing on the front case.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to FIG. In the figure, reference numeral 100 denotes a mounting base made of aluminum die-casting, and on the side thereof there is an engagement hole 101 consisting of a groove or a hole whose engagement surface is the front wall surface.
There are a total of four locations. Reference numeral 102 denotes a connecting portion for connecting the support column 400 provided on the upper surface of the mounting base 100, and is configured in the shape of a prismatic column with a portion opened in the shape of a slit. 103 is a pair of protruding pieces 104, 10 for sandwiching and fixing the collar of the switch 450, which is also provided on the top surface, between the top surface of the mounting base 100;
Reference numeral 5 denotes a guide hole provided on the lower surface of the mounting base 100 for assembling a front case 200 and a rear case 300, which will be described later. Reference numeral 200 denotes a front case that is combined with the mounting base 100 so as to cover the opening on the front side of the mounting base 100, and extends further rearward to the rear opening to insert the engagement hole 101 of the mounting base 100.
A guide piece 202 that engages with a guide hole 105 of the mounting base 100 is provided at the lower end of the front side so as to facilitate assembly with the mounting base 100. 300
Insert the front case 20 so that it covers the outside of the opening of the front case so that the claw 201 of the front case 200 does not open.
0, and a rear case to be assembled to the mounting base 100, and a screw 35 for assembly to the mounting base 100.
0, and a guide hole 1 for this to facilitate assembly to the mounting base 100.
A guide piece 302 that engages with 04 is provided below. In addition, as shown in detail in FIG. 2, the front case 200
Grooves and protrusions that engage with each other are circumferentially provided at the abutting portions of the respective openings of the rear case 300 and the rear case 300 along the openings. That is, a circumferential groove 203 is provided on the inner side of the opening of the front case 200 (inside of the side surface), and a circumferential protrusion that engages with the groove 203 is provided on the inner side of the end surface of the opening of the rear case 300 (inside of the side surface). 303 is provided.

The mounting base 100 and the front and rear cases 200, 300 configured as described above are assembled as follows.
First, the guide pieces of the front case 200 are inserted into the guide holes 105 of the mount 100 so that the engagement pieces 201 of the front case 200 engage with the respective engagement holes 101 of the mount 100 in which necessary electrical components are assembled into the openings. 202, and rotate the front case 2 with this guide hole 105 as the center.
After rotating 00, attach the mounting base 100 and the front case 20.
Combine 0. Next, the guide piece 302 of the rear case 300 is hooked onto the guide hole 104 of the mounting base 100, and the rear case 300 is moved around the guide hole 104.
0 to fit the protrusion 303 of the rear case 300 into the groove 203 of the front case 200. After this, attach the screw 350 to the boss part 301 of the rear case 300.
It is screwed into a screw hole (not shown) provided in the mounting base 100 in advance. By tightening the screws 350, the front case 200 is attracted toward the rear case 300 through the engagement of the engagement piece 101. Therefore, the groove 203 of the front case 200 and the protrusion 303 of the rear case 300 are butted against each other, and the engagement between the two is ensured. At the same time, the engagement piece 201 that has engaged with the engagement hole 101 tries to open outward, but this is due to the grooves 203 of the front and rear cases 200, 300 and the protrusion 3.
It is stopped by engaging 03.

Now, let's move on to the third detail of the mounting base 100.
This will be explained with reference to FIG. Incidentally, FIG. 5 shows a ballast for a fluorescent lamp, which is one of the electrical parts to be assembled to the mounting base 100. In FIG. 3, reference numeral 106 designates a continuous projection provided at the upper part of the opening of the mounting base 100 for positioning and preventing movement of the stabilizer 460, and reference numeral 107 designates a pair of projections.
108, 109 are screw holes or rivet holes for attaching the stabilizer 460; 110, 11;
1 is a seat for attaching an overturning switch, which will be explained later, and an electronic board. In such a configuration, in particular, the lower end of the ballast 460 is connected to the mounting base 100.
By selecting the dimensions of each part so as to abut against the inside of the bottom surface of the lower part of the stabilizer 460, the stabilizer 460 can be held more reliably against external shocks.

Next, according to FIG. 6, the front and rear cases 200, 30
Assembling the switch button 470 to 0 will be explained. 204 is an opening that is opened by lowering the upper surface of the front case 200; 205, 20;
Reference numeral 6 denotes an inner rail provided on the inner inner surface of the side surface of the front case 200. The inner rail 205 is approximately horizontal, and the inner rail 206 is inclined so as to gradually approach the inner rail 206 as it goes toward the rear surface. It is provided. Reference numerals 312 and 313 indicate Annai rails provided on the inner inner surface of the side surface of the rear case 300 so as to connect with the Annai rails 205 and 206, respectively. 313 is provided with a part inclined so that it gradually approaches the inner rail 312 toward the rear. 314 is a bearing space provided between the barrier 315 provided between the inner rail 312 and the inner rail 313 and the rear surface. It should be noted that a pair of these various rails are provided on the inner sides of the front and rear cases 200 and 300, facing each other. 470 is a switch button having a horizontal surface and a vertical surface that cover the opening 204 of the front case 200 and the upper end of the front surface following this opening, and a pair of curved arms 471 are provided at the rear of this switch button. At the tip of this arm 471, there is further a pair of shafts 472 extending outward.
is provided.

Now, the switch button 47 configured like this
0 is assembled using the deflection of the arm 471. That is, if the switch button 470 is made of synthetic resin, the arms 471 are first bent toward each other and guided through the opening 204 into the inner rails 205 and 206. Next, attach the shaft 472 of the switch button 470 to both safety rails 205, 20
6 or the switch button 470 to guide the bearing space 314 along the Annai rails 312, 313.
Push in. Then, after the shaft 472 overcomes the barrier 315, it fits within the bearing space 314. By fitting the shaft 472 into the bearing space 314 in this manner, the switch button 470 is prevented from coming off. In this embodiment, since the distance between both arms 471 is wide, the switch button 47
Even if the 0 end is operated, this can be prevented from tilting. In addition, the switch button 470
The switch button 470 can be assembled easily by utilizing the deflection of the arm 471. Furthermore, it is conceivable to provide a fulcrum for the switch button on the mounting base 100, but if this method is adopted, manufacturing errors and assembly errors of each part will accumulate, so this also makes the method of this embodiment effective.

Next, FIG. 7 shows an example of a desk lamp with each part configured in this manner. To explain this simply, 1 is a shade, 2 is a fluorescent lamp housed in the shade, 4 is a main body consisting of the mounting base and front and rear cases as described above, 3 is a base, 5 is a base 3 and a main body 4 A leg portion 400 consisting of four legs provided between the main body portion 4 and the shade 1 is a support that connects the upper surface of the main body portion 4 and the shade 1.

Although FIG. 7 shows a desk lamp using a fluorescent lamp, it is also possible to light an incandescent lamp with a substantially similar configuration. In this case, it is desirable to install an overturn switch. Then, attach the main body of the tipping switch to the mounting base 1.
It is preferable that the switch series is assembled into the lower part of the base 3 so that the legs constituting the legs 5 are hollow, and the legs protrude from the back surface of the base 3 through the legs. Similarly, the base 3 can be screwed into the lower surface of the mounting base 100 by passing screws from the back surface of the base 3 through the hollow feet, thereby creating a main body section 4.
These can be assembled simultaneously by sandwiching the leg portions 5 and 5.

Next, details of the lampshade 1 will be explained with reference to FIGS. 8, 9, and 10. 500 is pillar 4
This is a shade body that is attached to the upper end of 00 and houses a lamp socket and a fluorescent lamp connected to this lamp socket.
A reflector plate 501 is attached to the rear lower end of 00. 502 is a fitting part for connecting the upper end of the pillar 400 to the shade main body 500; 503 is a fitting part 50
A through hole 50 for guiding a power supply line placed through the pillar 400 communicating with the main body 500 into the shade body 500;
4 is a hole for a rivet that connects the support column 400 and the fitting part 502. 505 is the shade body 500
This is a wiring space provided between the lower inner side of the rear surface and the rear surface of the reflector plate 501, and houses the power supply line connected to the lamp socket through the support 400 and the wiring between the lamp sockets. That is, the reflector 50
A cutout 506 is provided at the lower rear surface of the shade body 500 so that the front surface of the shade body 500 and the inner surface of the shade body 500 are connected to each other so that the front surface of the shade body 500 is not disadvantageous in terms of light distribution.
Reference numeral 507 denotes engagement holes provided at both ends of the rear back side of the shade main body 500, which have projections 508 inside. 5
09 is a hook provided on the upper surface of the reflecting plate 501, and has a hook protrusion 510 at its tip. 511
is a protrusion provided near the hook 509 and engages in a wiring groove 550 provided below the shade body 500. Reference numeral 512 denotes a wiring holder provided on the upper surface of the reflecting plate 501, which is fitted into the wiring groove 550. 5
13 is a lid portion that covers the through hole 503 of the shade body 500, and 514 is a protrusion that projects from the rear surface of the lid portion 513 and engages with the through hole 503. 515 is a groove provided in the longitudinal direction of the reflecting plate 501 and having a V-shaped cross section.

With this structure, after the power supply line and the like are placed in the wiring groove 550 of the shade body 500 which opens downward, the reflection plate 501 is assembled. That is, the hooks 509 at both ends of the reflector 501 are inserted into the engagement holes 507 and fixed so that the upper surface of the reflector 501 closes the wiring groove 550. At the same time, the projection 514 at the center of the reflection plate 501 also engages with the through hole 503. As a result, the reflective plate 501 is assembled to the shade main body 500. Groove 51 of reflective plate 501
Reference numeral 5 is provided to prevent warping which would occur if the reflecting plate 501 was made of synthetic resin or the like. Further, the protrusion 511 provided near the hook 509 is for increasing the rigidity of the vicinity of the hook 509 and making the engagement of the hook 509 more firm.

〔Effect of the invention〕

As described above, the present invention provides a desk lamp that includes a support having a lampshade at the tip, a mounting base for attaching electrical components provided between a base that holds the support, and a case covering the mounting base. Prepare a mounting base with an engagement hole, and prepare a front case that has a claw that engages with the engagement hole of the mounting base and covers the front of the mounting base, and a front case that covers the front of the mounting base so that the claw of the front case does not open. By providing a rear case that covers the outside of the opening and attaches to the mounting base, the front case does not have a boss for screwing, which improves the moldability of the front case in particular. You can obtain a product with a high degree of perfection. Moreover, by adopting such a structure, the ease of assembling the product is also improved.

[Brief explanation of drawings]

Fig. 1 is an exploded view for explaining one embodiment of the present invention, Fig. 2 is a sectional view for explaining the assembled structure of Fig. 1, and Fig. 3 is for explaining the embodiment in more detail. The plan view of FIG. 4 is the X-
A diagram showing an X cross section, FIG. 5 is a diagram showing an example of a ballast incorporated in the embodiment, FIG. 6 is a diagram for explaining the installation of the switch button of the embodiment, and FIG. 7 is an example of the product of the embodiment. Figure 8 is a diagram showing the relationship between the shade body and the reflector, with the shade body being viewed diagonally from below and the reflector being viewed diagonally from the rear.
This figure is a cross-sectional view showing the end portion of the lampshade shown in FIG. 8, and FIG. 10 is a cross-sectional view showing the central portion. 1...Lampsade, 3...Base, 100...
...Mounting base, 101...Engagement hole, 200...Front case, 201...Claw, 300...Rear case, 400
...Strut.

Claims (1)

[Scope of Claims] 1. A desk lamp comprising a support having a lampshade at the tip, a mounting base for attaching electrical components provided between a base holding the support, and a case covering the mounting base, comprising: An engagement hole provided on the side surface of the base, a front case that covers the front of the mounting base and has a claw that engages with the engagement hole, and an opening in the front case that covers the front of the mounting base so that the claw of the front case does not open. and a rear case that covers the outside of the desk lamp and is attached to the mounting base.