JP7592514B2 - Wireless Intercom Equipment - Google Patents

Description

The present invention relates to wireless intercom devices, such as wireless intercom master units that are installed in living rooms.

Conventionally, wireless intercom devices include an intercom master unit that is made up of a charging stand that is installed in a room and a wireless master unit that can be charged by placing it on the charging stand (for example, Patent Document 1).

JP 2010-34867 A

However, conventional wireless intercom devices have a problem in that the main unit placed on the charging stand may accidentally fall off the stand.

Therefore, the present invention has been made in consideration of the above problems, and aims to provide a wireless intercom device in which the parent unit body is stable when placed on the charging stand and there is a low risk of it accidentally falling off the charging stand.

In order to achieve the above object, the present invention provides a wireless intercom device comprising a device main body with a main body case having a front portion and a peripheral portion that bulges backward so as to connect both left and right edges of the front portion, and a charging stand that has a recess capable of holding the lower portion of the device main body in a first position in which the device main body is tilted backward and is capable of charging the device main body held in the recess, the front surface of the recess being a plane extending vertically or an inclined surface that slopes forward as it extends upward, when the device main body is held in the recess in the first position, a gap that gradually widens upward is formed between the front portion of the main body case and the front surface of the recess, and C-surface portions are provided at both left and right corners of the front side of the recess that are separated from the main body case of the device main body held in the first position, so that when the device main body held in the first position is in a second position in which it stands vertically or tilts forward, both left and right edges of the front portion of the main body case and the C-surface portions of the recess interfere with each other.

According to the present invention, the front surface of the recess is a plane extending in the vertical direction or an inclined surface inclined forward toward the top, and when the device body is held in the recess in the first position, a gap is formed between the front portion of the main body case and the front surface of the recess that gradually widens toward the top, and C-surface portions are provided at both left and right corners of the front side of the recess that are separated from the main body case of the device body held in the first position to chamfer the respective corners, and when the device body held in the first position stands up vertically or takes the second position in which it is tilted forward, the left and right edges of the front portion of the main body case and the C-surface portion of the recess interfere with each other. Therefore, generally, the device body falls off the charging base in a manner that tilts forward, but at that time, the left and right edges of the front portion of the main body case interfere with the C-surface portion of the recess, preventing the device body from tilting forward beyond the second position, and as a result, effectively preventing the device body from falling off the charging base.

FIG. 2 is an explanatory perspective view showing the intercom master unit from the front side. FIG. 2 is a perspective view illustrating the charging stand from the rear side. 1 is a perspective explanatory diagram showing the front side of the parent unit main body from below. FIG. 1 is an explanatory diagram showing an intercom master unit with the master unit body held in a backward tilted position on a charging stand. FIG. 5 is an explanatory diagram showing a horizontal cross section at the position of the C surface portion of the intercom master unit in the state shown in FIG. 4 . FIG. FIG. 6 is an explanatory diagram showing an enlarged view of part A in FIG. 5 . 1 is an explanatory diagram showing an intercom master unit with the master unit body in a forward-leaning position on a charging stand; FIG. 8 is an explanatory diagram showing a horizontal cross section at the position of the C surface of the intercom master unit in the state shown in FIG. 7 . FIG. 9 is an explanatory diagram showing an enlarged view of part B in FIG. 8 . FIG. 4 is an explanatory perspective view showing the front case from the front side.

Below, we will explain in detail the wireless intercom master unit, which is one embodiment of the present invention, with reference to the drawings.

Figure 1 is an explanatory perspective view of the intercom master unit 1 from the front side. Figure 2 is an explanatory perspective view of the charging base 3 from the rear side. Figure 3 is an explanatory perspective view of the front side of the master unit main body 2 from below. Figure 4 is an explanatory view of the intercom master unit 1 in a state in which the master unit main body 2 is held in a backward tilted position on the charging base 3. Figure 5 is an explanatory view showing a horizontal cross section of the intercom master unit 1 at the C surface portion 26, 26 position in the state of Figure 4. Figure 6 is an explanatory view showing an enlarged view of part A in Figure 5. Figure 7 is an explanatory view of the intercom master unit 1 in a state in which the master unit main body 2 is in a forward tilted position on the charging base 3. Figure 8 is an explanatory view showing a horizontal cross section of the intercom master unit 1 at the C surface portion 26, 26 position in the state of Figure 7. Figure 9 is an explanatory view showing an enlarged view of part B in Figure 8. Figure 10 is an explanatory perspective view showing the front case 4 from the front side.

The intercom master unit 1 is composed of a master unit main unit 2 and a charging stand 3 for charging the master unit main unit 2 while holding it. The master unit main unit 2 is composed of a front case 4 arranged on the front side and a rear case 5 assembled to the rear side of the front case 4, and has a main unit case formed in an approximately rectangular box shape. The upper front part of the main unit case is provided with a display unit 6 for displaying the time and the call status with the intercom handset (not shown). The lower front part of the main unit case of the master unit 2 is provided with a response button 7 operated to respond to a call from the intercom handset, and a microphone unit 8 for making a call with the intercom handset. In addition, between the display unit 6 and the response button 7, three setting buttons 10, 10... that can be pressed are arranged in parallel in the left-right direction. The intercom master unit 1 is installed in a room, and when the response button 7 is operated in response to a call from the intercom handset, it becomes possible to make a call with the intercom handset. The master unit 2 is also provided with a speaker unit (not shown) for making a call with the intercom handset. In addition, 9 is a transparent panel that constitutes the display unit 6.

Here, a structure for holding the main unit 2 in the charging stand 3, which is a main part of the present invention, will be described in detail.
The charging stand 3 is integrally provided with a top plate 21 on which the parent unit body 2 is placed, a front plate 22 extending downward from the front edge of the top plate 21, side plates 23, 23 extending downward from both left and right edges of the top plate 21, and a rear plate 24 extending downward from the rear edge of the top plate 21. A charging recess 25 for charging the parent unit body 2 while holding its lower part is provided at a location near the front of the top plate 21. The bottom surface of the charging recess 25 is an inclined surface that slopes downward toward the rear, while both left and right side surfaces of the charging recess 25 are flat surfaces that rise approximately vertically, and the rear surface of the charging recess 25 is an inclined surface that slopes upward toward the rear. The parent unit body 2 can be inserted into the charging recess 25 in a position (first position) tilted backward, and when the lower part of the parent unit body 2 is inserted, the bottom, back, and both left and right sides of the charging recess 25 abut against the bottom, back, and both left and right sides of the main body case of the parent unit body 2, thereby charging and holding the parent unit body 2 (Figure 4).

The front surface of the charging recess 25 is an inclined surface that slopes slightly forward as it goes upward. Therefore, although the bottom surface of the charging recess 25 is approximately the same size as the bottom surface of the main body case of the main unit 2, it gradually becomes larger than the main body case of the main unit 2 as it goes upward, and as shown in Figure 4, a gradually widening gap is formed between the charging recess 25 and the front surface of the main body case of the main unit 2. C-surface portions 26 that chamfer the respective corners are provided at both left and right corners of the front side of the charging recess 25 (i.e., at each corner, the surface of the C-surface portion 26, which is flat, slightly protrudes toward the inside of the charging recess 25). When the main unit 2 is held in the charging recess 25 in the above-mentioned backward tilted position, the main body case of the main unit 2 and the C-surface portions 26, 26 are separated (Figures 5 and 6).

On the other hand, the front case 4 which constitutes the front side of the main body case of the parent unit main body 2 is a frame body which is generally rectangular when viewed from the front, and is integrally provided with a front part 11 which constitutes the front side of the main body case, side parts 12, 12 which extend rearward from both the left and right ends of the front part 11 and constitute part of the side of the main body case, a top part 13 which extends rearward from the upper end of the front part 11 and constitutes part of the top surface of the main body case, and a bottom part 14 which extends rearward from the lower end of the front part 11 and constitutes part of the bottom surface of the main body case. Reference numeral 50 denotes a window for exposing the response button 7 etc.

The parent unit 2 described above falls off the charging base 3 in a manner that tilts forward from the state in which it is held in the backward tilted position on the charging base 3. However, because the charging recess 25 of the charging base 3 is provided with C-surface portions 26, 26, when the parent unit 2 takes the forward tilted position (second position) as shown in FIG. 7, the left and right edges of the main body case of the parent unit 2 interfere with the C-surface portions 26, 26 (FIGS. 8 and 9), preventing the parent unit 2 from tilting forward beyond the second position, and thus preventing the parent unit 2 from falling off the charging base 3.

According to the intercom master unit 1 having the above-mentioned configuration, the front surface of the charging recess 25 provided on the charging stand 3 is an inclined surface that slopes forward toward the top, and when the master unit main body 2 is held in the charging recess 25 in the above-mentioned backward tilted position, a gap that gradually widens toward the top is formed between the front surface 11 of the main body case of the master unit main body 2 and the front surface of the charging recess 25. In addition, C-surface portions 26 that chamfer the respective corners are provided at both left and right corners of the front side of the charging recess 25, which are separated from the main body case of the master unit main body 2 in the backward tilted position held on the charging stand 3. When the master unit main body 2 in the backward tilted position tilts forward, the left and right edges of the front surface 11 of the main body case of the master unit main body 2 interfere with the C-surface portions 26, 26 of the charging recess 25. Therefore, the parent unit body 2 will generally fall off the charging base 3 in a manner that tilts it forward, but at that time, the left and right edges of the front portion 11 of the main body case of the parent unit body 2 interfere with the C-surface portions 26, 26 of the charging recess 25, preventing the parent unit body from tilting forward beyond a predetermined forward tilt position, and as a result, effectively preventing the parent unit body 2 from falling off the charging base 3.

The wireless intercom device according to the present invention can be modified as necessary without departing from the spirit of the present invention, not only in terms of the overall configuration of the wireless intercom device, but also in terms of the configuration of the device itself and the charging stand.

For example, in the above embodiment, the main unit case of the parent unit is formed in a roughly rectangular box shape, but the main unit case may have a peripheral surface in which the sides and rear are continuously curved, and the shape of the main unit case can be appropriately redesigned as long as it has a front portion and a peripheral portion that bulges rearward to connect both the left and right edges of the front portion.

In addition, in the above embodiment, the front surface of the recess is an inclined surface that slopes upward and forward, but the front surface of the recess may also be a plane extending in the vertical direction, and there is no problem if the second posture in which the left and right edges of the front surface of the main body case interfere with the C-surface portion of the recess is not the forward-leaning posture described above, but an upright posture in the vertical direction.
Furthermore, although the above embodiment describes an intercom master unit, the present invention can also be suitably adopted for other wireless intercom devices, such as intercom devices with telephone functions, so long as they are equipped with the device main body and a charging stand for holding and charging the device main body.

1: Intercom base unit (wireless intercom device), 2: Base unit main unit, 3: Charging stand, 4: Front case (main unit case), 5: Rear case (main unit case), 11: Front portion, 12: Side portion (peripheral portion), 25: Charging recess (recess), 26: C-surface portion.

Claims (1)

A wireless intercom device comprising: a device main body having a main body case having a front portion and a peripheral portion bulging rearward so as to connect both left and right side edges of the front portion; and a charging stand having a recess capable of holding a lower portion of the device main body in a first position in which the device main body is tilted rearward, and capable of charging the device main body held in the recess,
The front surface of the recess is a plane extending in a vertical direction or an inclined surface inclined forwardly upward, and when the device main body is held in the recess in the first position, a gap is formed between the front surface of the main body case and the front surface of the recess, the gap gradually widening upward;
a chamfered chamfered surface is provided at both left and right corners of the front side of the recess, the chamfered chamfer being spaced apart from a main body case of the device main body held in the first position;
This intercom device is characterized in that when the device main body held in the first position assumes a second position in which it stands vertically or tilts forward, the left and right edges of the front part of the main body case interfere with the C-face part of the recess.

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