JP4442364B2 - Remote control device - Google Patents

Description

  The present invention relates to a remote control device in which an upper case and a lower case are fitted, and to a remote control device that can be easily redesigned when rattling occurs in a fitting portion.

  Conventionally, most of the remote control devices that are generally used are configured by fitting an upper case and a lower case so that operation buttons are exposed to the outside through a plurality of openings provided in the upper case.

  5A and 5B are explanatory views showing an example of the structure of the upper case of the conventional remote control device. FIG. 5A is a plan view and FIG. 5B is a side view.

  The upper case 10 of the remote control device shown in FIG. 5 includes a main operation unit 11, a sub operation unit 12, and a battery storage unit 13. The sub operation unit 12 and the battery storage unit 13 are not shown slide type covers. Will normally be covered.

  At the lower edge of the side wall of the upper case 10, a plate-like fitting portion 15 (hereinafter referred to as an inlay) that is fitted to the lower case 30 described later is suspended. Thereby, the upper case 10 and the lower case 30 can be easily positioned and fitted. Note that the spigot 15 is not formed in the portion (lower half) where the sub operation unit 12 and the battery storage unit 13 are provided.

  Further, at predetermined positions of the upper half inlay 15 and the lower half side wall 18, a hook engaging portion 17 that can be engaged with a hook-like locking piece provided on the upper side wall of the lower case 30 is recessed. It is installed.

  6 is a cross-sectional view when the upper case 10 shown in FIG. 5 and the corresponding lower case 30 are fitted. As shown in FIG. 6, the outer surface of the inlay 15 of the upper case 10 is in contact with the inner surface of the side wall 31 of the lower case 30. Although not shown, the hook-shaped locking piece of the lower case 30 is engaged with the hook engaging portion 17, and the protrusion provided on the inner surface of the upper case 10 is a lower case 30. The upper case 10 and the lower case 30 are fixed by being engaged with a cylindrical engagement portion provided on the inner surface of the main surface.

  FIG. 7 is an enlarged cross-sectional view showing a fitting state between the upper case 10 and the lower case 30. As shown in FIG. 7, the dimensions of the upper case 10 and the lower case 30 are designed in consideration of manufacturing errors (tolerances). For example, the dimensions of the inlay 11 of the upper case 10 and the side wall of the lower case 30 are The gap is designed to be 0.1 mm.

  As described above, in the conventional remote control device, the side wall 31 of the lower case 30 and the inlay 15 of the upper case 10 are in contact with each other by surface contact.

In addition, a rib is erected in the width direction of the bottom surface of the lower case 30 so that the inlay 11 of the upper case 10 is sandwiched between the rib and the side wall of the lower case 30. There has been proposed a remote control device that prevents separation from 30 (Patent Document 1).
JP-A-8-205269

  By the way, the upper case 10 and the lower case 30 of the remote control device are usually manufactured by resin molding using a mold, but when an error more than a tolerance (for example, 0.1 mm) occurs in the finished dimensions. The upper case 10 and the lower case 30 cannot be fitted in a normal state. For example, the thickness of the inlay 11 is too thick to be fitted in the lower case 30, or the thickness of the inlay 11 is not constant and the rattling occurs.

  When such a problem occurs, the conventional remote control device has a structure in which the side wall 31 of the lower case 30 and the inlay 11 of the upper case 10 are in contact with each other. Need to be changed. Therefore, the part of the mold corresponding to the inlay 11 is cut on the entire surface, and it takes a long time to correct the mold.

  An object of the present invention is to provide a remote control device capable of easily correcting a mold and improving the fitting state of an upper case and a lower case when an error exceeding a tolerance occurs in a finished dimension.

The present invention has been made in order to solve the above-described problems. The upper case has a substantially rectangular shape with sidewalls on all sides and the bottom is opened, and the substantially rectangular shape has sidewalls on all sides and the top is opened. A lower case, and a side wall of the upper case is fitted into an opening of the lower case, and the upper case is formed at an opening edge of the upper half of the side wall. An inset portion is provided, and a plurality of semi-cylindrical ribs formed in the height direction of the side wall contacting the inner surface of the side wall of the lower case are provided on the outer surface of the inset portion, and the underside of the inset portion and the upper case At a plurality of predetermined positions on the side wall of the half, hook engaging portions that can be engaged with hook-shaped locking pieces provided on the upper side wall of the lower case are recessed, and one of the hook engaging portions is provided. One is especially that they are located between two adjacent said semicircular rib To.

  According to the present invention, when the upper case and the lower case of the remote control device are fitted, the plurality of protrusions (ribs) provided on the outer surface of the side wall of the upper case come into contact with the inner surface of the side wall of the lower case. Therefore, when an error more than the tolerance occurs in the finished dimension in the fitting portion, the height of the protruding portion is adjusted, that is, the recessed portion of the mold corresponding to the protruding portion is individually cut to obtain the fitting state. Can be improved. At this time, the adjustment may be made with all of the plurality of protrusions, or with a part thereof.

  Therefore, in comparison with the conventional method of cutting the entire portion of the mold corresponding to the spigot, the correction of the mold becomes much easier, and even when a slight rattling occurs, it is partially Can respond.

  In the remote control device, the ribs of the upper case and the side walls of the lower case are partially in contact with each other, and a gap is formed in a portion where the ribs are not provided. When an impact is applied by dropping or the like in the fitted state, the impact is alleviated by this gap, so that the impact resistance can be improved.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the drawings.

  1A and 1B are explanatory views showing the structure of a remote control device 100 of a television receiver. FIG. 1A is a plan view and FIG. 1B is a side view of an upper case.

  As shown in FIG. 1, the upper case 10 of the remote control device 100 is provided with a main operation unit 11 provided with a power button, a channel button, a volume button, etc., and a button that is not used for normal program viewing. The sub-operation unit 12 and the battery storage unit 13 are provided, and the sub-operation unit 12 and the battery storage unit 13 are normally covered with a slide-type cover (not shown).

  The upper case 10 has a substantially rectangular shape, has side walls in four directions, and is open at the bottom. The side wall 14 in the longitudinal direction of the portion (upper half) where the main operation unit 11 is provided has an edge on the opening side. A plate-like fitting portion 15 (hereinafter referred to as an inlay) that is fitted to the lower case 30 is suspended from the portion. The inlay 15, the upper case 10 and the lower case 30 can be easily positioned and fitted.

  Furthermore, in this embodiment, the point which forms the semi-cylindrical rib 16 in the inlay 15 differs from the conventional remote control apparatus (refer FIG. 4). In the present embodiment, ribs 16 are provided at seven locations on the one side of the inlay 15 at approximately equal intervals, and similarly provided on the opposite side of the inlay.

  On the other hand, a guide 19 is provided on the side wall 18 in the longitudinal direction of the portion (lower half) where the sub-operation unit 12 and the battery storage unit 13 are provided, and slides between the guide 19 and the end of the main surface of the upper cover 10. A groove 20 for sliding the cover of the formula is formed.

  In addition, a hook engaging portion that can be engaged with a hook-shaped locking piece provided on the upper side wall of the lower case 30 at a predetermined position of the inlay 15 formed in the upper half and the side wall 18 of the lower half. 17 is recessed.

  FIG. 2 is a cross-sectional view of the remote control device 100 according to the present embodiment. As shown in FIG. 2, the inlay 15 of the upper case 10 is fitted into the opening of the lower case 30. Although not shown, the hook-shaped locking piece of the lower case 30 is engaged with the hook engaging portion 17, and the protrusion provided on the inner surface of the upper case 10 is a lower case 30. The upper case 10 and the lower case 30 are fixed by being engaged with a cylindrical engagement portion provided on the inner surface of the main surface.

  FIG. 3 is an enlarged cross-sectional view showing a fitting state between the upper case 10 and the lower case 30, FIG. 3A is a cross-sectional view of a portion where the rib 16 is not provided, and FIG. It is sectional drawing of the site | part in which the rib 16 is provided. 4 is a cross-sectional view taken along one-dot chain line AA in FIG.

  As shown in FIGS. 3 and 4, the inlay 15 and the side wall 31 of the lower case 30 are completely separated from each other in the portion where the rib 16 is not provided, whereas in the portion where the rib 16 is provided. The rib 16 formed on the inlay 15 is in contact with the side wall 31 of the lower case 30.

  The dimensions of the upper case 10 and the lower case 30 are designed in consideration of manufacturing errors (tolerances). In this embodiment, as shown in FIGS. 3 and 4, the gap between the inlay 15 of the upper case 10 and the side wall 31 of the lower case 30 is designed to be 0.3 mm, and the height of the rib 16 is 0.2 mm. is doing. That is, the gap between the rib 16 and the inner surface of the side wall of the lower case 30 is 0.1 mm (tolerance) (the tolerance is not different from the conventional one).

  As described above, in the remote control device 100 according to the present embodiment, when the upper case 10 and the lower case 30 are fitted together, the plurality of ribs 16 provided on the outer side wall of the upper case 10 and the side walls of the lower case 30. The inner surface will partially abut. In such a remote control device 100, when an error of a tolerance (0.1 mm in the present embodiment) or more occurs in the finished dimension in the fitting portion (the gap between the rib 16 and the side wall of the lower case), the height of the rib 16 is increased. In other words, the fitting state can be improved by cutting the concave portions of the mold corresponding to the ribs 16 individually. At this time, all of the plurality of ribs 16 may be adjusted, or a part thereof may be adjusted. This makes it much easier to correct the mold as compared with the conventional case where the part of the mold corresponding to the inlay 15 is cut on the entire surface. This can be partially accommodated by adjusting the height of the ribs 16.

  Further, since the rib 16 of the upper case 10 and the side wall 31 of the lower case 30 are in partial contact with each other and a gap is formed in a portion where the rib 16 is not provided, the upper case 10 and the lower case When an impact is applied by dropping or the like with the 30 fitted, the impact is mitigated by this gap, so that the impact resistance can be improved.

  As mentioned above, although the invention made by this inventor was concretely demonstrated based on embodiment, this invention is not limited to the said embodiment, It can change in the range which does not deviate from the summary.

  For example, in the above embodiment, the plurality of ribs 16 are provided on the inlay 15 provided on the side wall 14 in the longitudinal direction of the upper case 10, but the rib is provided on the side wall in the short side direction of the upper case 10. Also good. The number of ribs 16 is not particularly limited, but is preferably determined in consideration of resistance to impacts such as dropping, deformation of the outer shape due to external pressing, and the like.

  In the above-described embodiment, the plurality of ribs 16 are provided on the side wall 14 of the upper case 10. However, a structure in which the plurality of ribs 16 are provided on the side wall 31 of the lower case 30 may be employed.

It is explanatory drawing which shows the structure of the remote control apparatus of a television receiver. It is sectional drawing of the remote control device which concerns on this embodiment. It is an expanded sectional view which shows the fitting state of the upper case and lower case in the remote control device of this embodiment. It is sectional drawing in the dashed-dotted line AA of FIG.3 (b). It is explanatory drawing which shows the structure of the conventional remote control apparatus of a television receiver. It is sectional drawing of the conventional remote control apparatus. It is an expanded sectional view which shows the fitting state of the upper case and lower case in the conventional remote control device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Upper case 11 Main operation part 12 Sub operation part 13 Battery storage part 14 Longitudinal side wall part (upper half part)
15 inlay (inset)
16 Ribs (protrusions)
17 Hook engaging part 18 Longitudinal side wall part (lower half part)
19 Guide 20 Sliding cover sliding groove 30 Lower case 31 Longitudinal side wall

Claims (1)

The upper case has a substantially rectangular shape with a side wall in four directions and an open bottom, and a lower case having a substantially rectangular shape with a side wall in four directions and an upper portion opened. A remote control device fitted in the opening of the side case,
The upper case is provided with a fitting portion at the opening edge of the upper half side wall, and a plurality of half portions formed in the height direction of the side wall contacting the inner side wall of the lower case on the outer surface of the fitting portion. It has a cylindrical rib,
At a plurality of predetermined positions on the fitting portion and the side wall of the lower half of the upper case, hook engaging portions that can be engaged with hook-like locking pieces provided on the upper side wall of the lower case are recessed. ,
One of the hook engaging portions is located between two adjacent semicircular ribs .

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