JPH0527154Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention relates to a case for a small electrical device such as an electric shaver, which is composed of two halves, and the overlapping surface of these halves is exposed to the outside. The present invention relates to a structure for attaching a decorative member to an equipment case so that it is not exposed.

(b) Prior art For example, in the rechargeable electric shaver disclosed in Japanese Patent Publication No. 61-24950, a lateral holder is formed on both sides of the housing with ridges and grooves for better retention of the razor. The cover is attached.
This horizontal cover is attached to the flat side surface of the cylindrical housing, and the method is to fit the fitting protrusion formed on the side surface of the housing into the fitting recess of the horizontal cover, and the upper end of the horizontal cover. The fitting protrusion formed on the housing is fitted into the fitting recess formed on the side surface of the housing. In this example, unless the material of the horizontal cover has approximately the same hardness as the housing, it is not sufficient to attach the horizontal cover to the side surface of the housing by fitting, and there is a risk that the horizontal cover may easily come off.

In addition, since the above conventional example has a cylindrical housing, if a fitting protrusion is formed on the side surface of the housing, the thickness of the housing changes only in that part, resulting in an imbalance in strength. It is difficult to form such a fitting protrusion, and if the side cover is made of a rubber-like material such as an elastomer, a conventional fitting structure cannot be achieved.

(c) Problems to be solved by the invention The problems to be solved by the invention are to create a system that is optimal for attaching a soft resin decorative member to a two-part hard resin main body case, and that the thickness of the main body case is uniform. The objective is to develop a mounting structure that can be maintained.

(d) Means for solving the problem In an equipment case consisting of a hard resin main body case with a soft resin decorative member attached, the main body case is formed by overlapping two halves of the front and rear cases. , fitting recesses are provided above and below on both sides of the overlapping surfaces of the two halves of the case, and fitting protrusions that can fit into the fitting recesses are provided on the inner surface of the decorative member above and below, respectively. and a part of the overlapping surface of the halved case is covered by the decorative member.

(E) Effect According to the present invention, since the decorative member is fitted to the overlapping surface of the front and rear half-split case, a part of the overlapping surface can be covered. At this time, since the fitting protrusions provided on the decorative member are provided on the inner surface of the decorative member, the fitting protrusions are not exposed to the outside. Therefore, the appearance of the equipment case is not impaired. Moreover, since the decorative member is made of soft resin, it improves the feel of the device case and also serves as a non-slippery member. Furthermore, since the main body case is formed by overlapping two halves of the front and rear halves, the decorative member can be attached after they are overlaid. Therefore, at the same time as the half-case polymerization,
There is no need to attach decorative members, and the equipment case is easy to assemble.

(f) Embodiments Hereinafter, embodiments in which the device case of the present invention is applied to an electric shaver will be described in detail based on the drawings.

FIGS. 2 and 3 show a front view and a side view of the reciprocating electric shaver. In these figures, 1
is a main body case made of hard resin such as ABS or AS, and the case 1a and 1b, which is divided into two parts, front and rear, is connected to the overlapping surface 1.
It is composed by polymerizing with c. A switch start operation knob 2 and a diagonal blade operation knob 3 are disposed on the surface of the front case 1a so as to be slidable on the surface.
A lock button 3 having a head protruding through a central horizontally elongated hole 2a is attached to the lock button 3 so as to be interlocked with the starting operation knob 2.

4a and 4b are rubber-like elastomer decorative members attached to both sides of the main body case 1;
The surface has unevenness to help hold the electric shaver better. Further, on both sides of the main body case 1, detachment buttons 5a and 5b for the outer cutter frame, which will be described later, and an entrance 6 for a charging plug (not shown) are provided, so that the decorative members 4a and 4b can be connected to each other. Round holes 7a, 7b and a rectangular hole 8 are formed at the positions.

Reference numeral 9 denotes a use position on the front side of the upper projecting wall portion 1d (see FIG. 6) of the main body case 1, which projects horizontally from the main body case 1, and a storage position where it is flush with the surface of the main body case 1. The edge cutting blade unit 10, which is rotatably operated by the edge cutting blade operation knob 3, is mounted and engaged on the upper surface of the main body case 1 by the release buttons 5a, 5b, and Notch 10a corresponding to the sled blade unit 9
It is an aluminum die-cast outer cutter frame with a metal net-like outer cutter 11 attached to its top opening 10b, and the outer cutter 11 is attached to the rear surface of the outer cutter frame 10.
It has another notch 10c (see FIG. 6) that exposes the removal member 12 connected to the holder.

FIGS. 4 and 5 show cross-sectional views of FIGS. 2 and 3, respectively. However, in these figures, electrical components housed inside are omitted.

In Fig. 4, 13 is a storage part for a motor that drives an inner blade (see Fig. 6) to be described later, 14 is a storage part for a secondary battery that supplies current to the motor, and 15 is a storage part for a charging current to the battery. A step-down transformer storage section 16 is a storage section for a charging plug that conducts current from a commercial power supply to the step-down transformer, and the entrance/exit 6 is located at one end of this charging plug storage section 16.

Further, as shown in FIG. 5, the decorative members 4a, 4
b has a U-shaped cross section, and has locking pawls 17, 18... opposing each other integrally formed at appropriate positions on its side edges, and locking pawls 17, 18... near the roots of the locking pawls 17, 18... Recesses 19 and 20 are formed. Moreover, .circle.-shaped hooking pieces 21a, 21b (see FIG. 4) are formed as fitting protrusions from the lower end mounting surfaces of the decorative members 4a, 4b.

FIG. 6 shows an exploded perspective view of the electric shaver shown in FIGS. 2 to 5. In the same figure, reference numeral 22 denotes an inner cutter mount that is attached to the upper part of the main body case 1 while being urged upward, and 23 is detachably attached to the inner cutter mount 22 so that it can slide freely on the inner surface of the outer cutter 11. The inner cutter mount 22 is reciprocated by the motor. Further, the front case 1a and the rear case 1b have an overlapping surface 1c.
After being polymerized with each other, the screws 24a, 24b, 2
It is fixed with screws at the top and bottom of the main body case 1 through the screws 5. The locking claws 17, 18 of the decorative members 4a, 4b are provided on both sides of the main body case 1.
Holes 26, 27... are formed at positions corresponding to the holes 26, 27..., and protrusions are formed on the edges of the holes 26, 27... corresponding to the locking recesses 19, 20... of the decorative members 4a, 4b. portions 28, 29... are formed, and the decorative members 4a, 4 are formed on both bottoms of the main body case 1.
Fitting recesses 30a and 30b are formed at positions corresponding to the hooking pieces 21a and 21b of b.

As shown in FIG.
It is formed by combining a and lb during polymerization. Furthermore, the thickness dimensions of the front and rear cases 1a, 1b do not change much even with the formation of the semi-recessed portions 31a, 31b, and the balance of strength is not disrupted.

Next, a method of attaching the decorative members 4a, 4b to the main body case 1 will be explained. Decorative member 4
The attachment of parts a and 4b can be carried out on the main body case 1 after the various electrical and mechanical components inside the main body case 1 have been installed. That is, first, the side edges of the decorative members 4a, 4b are elastically deformed so as to expand outward, and the locking claws 1 of the decorative members 4a, 4b are
7, 18... in the holes 26, 27... of the main body case 1.
... and the decorative members 4a, 4.
The hook pieces 21a and 21b of b are fitted into the fitting recesses 30a and 30b of the main body case 1. After that, the decorative members 4a, 4b are returned to their original shapes. In this state, the tips of the locking claws 17, 18...
a, 1b, and the protrusions 28, 29 of the main body case 1 engage with the locking recesses 19, 20 of the decorative members 4a, 4b.

The tips of the locking claws 17, 18... and the receiving portion 32
A key-type locking mechanism is formed by the contact with the decorative members 4a, 4b.
The retaining strength in the direction of removal is maintained.
Further, the locking recesses 19, 2 of the decorative members 4a, 4b
0... and the convex parts 28, 29... of the main body case 1, the main body case 1 of the decorative members 4a, 4b
Lifting up against the sides is prevented.

Note that the hook pieces 21a, 2 of the decorative members 4a, 4b
1b and the fitting recesses 30a and 30b of the main body case 1
Both have an L-shaped cross section, and their fitting is strong enough to prevent them from coming off even if force is applied to the decorative members 4a, 4b from any direction: front and rear, top and bottom, and left and right. Moreover, the fitting recess 30 of the main body case 1
Regardless of whether the shapes a and 30b are L-shaped or not, since they are formed from semi-concave portions 31a and 31b provided in the front and rear cases 1a and 1b, respectively, there is no difficulty in molding them with a mold.

In addition, the overlapping surface 1c of the front and rear cases 1a and 1b
Ribs 33a, 33b are formed on one side for positioning during superposition, and grooves (not shown) for receiving these ribs 33a, 33b are formed on the other side, making it easier to assemble the main body case 1. It's smooth.

For reference, FIG. 7 shows a perspective view of the bottom of the equipment case assembled in this way.

The locking claws 17, 18... of the decorative members 4a, 4b, the holes 26, 27... of the main case 1, the engaging recesses 19, 20... of the decorative members 4a, 4b, and the convex portion 28 of the main case 1 , 29..., so that the dimensions of the engagement recesses 19, 20... > the convex portion so that the decorative members 4a, 4b can be easily attached to the main body case 1 by force in the pushing direction. 2
It is desirable to design it so as to satisfy the dimensional relationship of 8, 29, . . . .

(g) Effects of the invention According to the invention, in an equipment case consisting of a hard resin main body case with a soft resin decorative member attached, the main body case is formed by overlapping two halves of the front and rear cases. Fitting recesses are provided above and below on both sides of the overlapping surfaces of the two halves of the case, and fitting protrusions that can fit into the fitting recesses are provided on the inner surface of the decorative member at the upper and lower sides. and a part of the overlapping surface of the halved case is covered by the decorative member, so the soft resin decorative member is attached to the hard resin main body case, The simple structure not only improves the appearance of the equipment case, but also improves the feel and provides anti-slip effects.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the main parts explaining the method of assembling the device case of the present invention, Fig. 2 is a front view of a reciprocating electric shaver employing the device case of Fig. 1, and Fig. 3 is a side view of the device case of Fig. 2. Figure 4 is a cross-sectional view taken at -' in Figure 3, Figure 5 is a cross-sectional view taken at -' in Figure 2, Figure 6 is an exploded perspective view, and Figure 7 shows the assembled state of the parts shown in Figure 1. FIG. 1... Main body case, 4a, 4b... Decorative members,
1a, 1b...Half case, 30a, 30b...
Fitting recess, 31a, 31b...half recess, 21a,
21b... Fitting protrusion.

Claims (1)

[Scope of utility model registration request] In an equipment case in which a decorative member made of soft resin is attached to a main body case made of hard resin, the main case is formed by overlapping two halves of the front and rear cases, and the upper part of both sides of the overlapping surface of the two halves of the case is formed. and a fitting concave portion is provided at the bottom thereof, and fitting protrusions that can be fitted into the fitting concave portions are formed on the inner surface of the decorative member at the top and bottom, respectively, and An equipment case characterized by covering a part of the overlapping surface of the half-split case.