JP3769488B2 - Telephone - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a telephone , and more particularly to a desktop / wall-mounted telephone that can be used by changing to either a desktop type or a wall-mounted type by attaching an auxiliary unit to the bottom surface of the telephone body .
[0002]
[Prior art]
Electronic devices such as telephones or telecommunication devices are used in various forms. In general, there are two types of usage, a desktop type and a wall-mounted type. The desktop type is used by being placed on a desk or table. In the desktop type, as is suitable for sitting and working on a chair, it is not a fixed position parallel to the upper surface of the desk or table, but the operation of the keys and the like arranged on the upper surface with the front side lowered and the display unit The display is configured to be easy to see. In the wall-mounted type, the front surface is attached in a non-parallel state with the wall surface so that the upper end portion is close to the wall surface and the lower end is located away from the wall surface, thereby improving operability.
[0003]
Thus, it is not efficient to design, for example, the above-described desk-top type and wall-mounted type telephones having the same operation surface and internal electronic circuit. Therefore, by making the main body that is the basic part in common, by attaching a detachable sub-bottom plate to the main bottom plate that is the bottom surface (or the opposite side of the operation surface), for example, detachably, and changing the mounting method of this sub-bottom plate It has been proposed to be used as a desktop or wall-mounted type. Such prior arts or related techniques are disclosed in, for example, Japanese Utility Model Application Laid-Open No. 60-79861 “Table phone combined telephone structure”, Japanese Utility Model Publication No. 63-16741 “Communication equipment structure”, Japanese Utility Model Application No. 63-131442. No. 6-37150, “Additional unit mounting structure for telephone”, and “Telephone” in Japanese Patent Application Laid-Open No. 60-52148.
[0004]
FIG. 8 shows the “table phone combined telephone structure” disclosed in the first prior art described above. 8A is an exploded perspective view of the bottom (or back) side of the telephone, FIG. 8B is a side view showing a use state in a desktop type, and FIG. 8C is a side view showing a wall-mounted type attachment state. FIG. The telephone 1 includes a telephone casing (or main body) 2, a sub-bottom plate 4 detachably attached to the main bottom surface 3 of the casing 2, and a receiver (handset) 7 connected to the casing 2 by an extension cord 6. Is done.
[0005]
A plurality of locking projection grooves 31 and a plurality of locking claw grooves 32 are formed on the main bottom surface 3 of the housing 2. The sub-bottom plate 4 is formed with a pair of locking projections 46 and a pair of locking claws 47, and a plurality of mounting holes 49 are formed in the bottom surface 48. The sub-bottom plate 4 includes a side surface 41 that is a substantially right triangle. By attaching the mounting directions of the sub-bottom plate 4 to the casing 2 opposite to each other, it can be changed to the desktop type shown in FIG. 8 (B) or the wall-hanging type shown in FIG. 8 (C). In the wall-mounted type, the housing 2 is attached or assembled after the attachment holes 49 of the bottom surface portion 48 of the sub-bottom plate 4 are fixed to the wall surface using attachment screws.
[0006]
The housing 2 and the sub-bottom plate 4 are attached (fixed) after the locking projection 46 of the sub-bottom plate 4 is locked with the locking projection groove 31 of the main bottom surface 3 of the housing 2 and then the elastic locking claw. 47 is locked in the locking claw groove 32. The housing 2 is formed with a pair of locking projection grooves 31 on both sides. Similarly, since two pairs of locking claw grooves 32 are formed at positions corresponding to the locking claws 47, the mounting direction of the sub-bottom plate 4 can be reversed or reversed.
[0007]
[Problems to be solved by the invention]
The telephone case and the sub-bottom plate need not only allow the mounting direction to be reversed, but also make the appearance and attachment / detachment easy. However, the above-described prior art does not sufficiently satisfy these requirements and has many structural limitations.
[0008]
OBJECT OF THE INVENTION
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the prior art, and it is possible to easily attach and detach an auxiliary unit to the bottom surface of a telephone body so that it can be changed to a desktop type or a wall-mounted type and to provide a good-looking telephone. With the goal.
[0009]
[Means for Solving the Problems]
The rectangular bottom surface of the present invention , a pair of opposed substantially trapezoidal side walls standing up from the outer periphery of the bottom surface and having different lengths in the standing direction and parallel to these sides, An auxiliary unit having a high rectangular side wall with a longer side length and a lower rectangular side wall with a shorter side length among the different sides, and an operation surface on the front side and an elastic on the bottom surface has engagement piece, in the telephone and a telephone body for fixing in the engaging piece and the auxiliary unit so as to close the opening of the auxiliary unit to the bottom surface facing said auxiliary unit, a bottom surface of said telephone body A pair of parallel rail members formed in a substantially central portion so as to protrude parallel to the side of the bottom surface, and the elastic engagement piece is formed in the vicinity of the side of the bottom surface not parallel to the rail member , The auxiliary unit includes the pair of substantial platforms. A pair of substantially trapezoidal side walls on which the engagement protrusions of the auxiliary unit are formed are provided on the telephone body. The high rectangular side wall or the low rectangular side of the auxiliary unit is elastically engaged and fixed to the elastic engagement piece by sliding along the rail member while being engaged with the rail member.
[Claim 2]
2. The telephone set according to claim 1, wherein the telephone unit is selectively set to a desktop type or a wall-mounted type by changing the engagement direction of the auxiliary unit with respect to the telephone body.
[0010]
Further, according to a preferred embodiment of the telephone of the present invention, the elastic engagement piece formed on the bottom surface of the telephone main body is selectively made into a desktop type or a wall hanging type by changing the engagement direction of the auxiliary unit with respect to the telephone main body. , it is configured on the bottom surface and integrally forming a substantially parallel pair of slits on the bottom. The elastic engagement piece formed on the bottom surface of the telephone body is formed integrally with the bottom surface by connecting the free ends of a pair of arms formed on the bottom surface. The telephone body and the auxiliary unit are slidable and detachable from any one of the two directions along the rail member formed on the bottom surface of the telephone body.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the configuration and operation of a preferred embodiment of a telephone according to the present invention will be described in detail with reference to the accompanying drawings.
[0012]
First, FIG. 1 shows the appearance of a telephone according to the present invention. FIG. 1A is a perspective view of a desk phone. FIG. 1B is a perspective view of a wall-mounted telephone. The telephone 100 includes a telephone main body (main body part) 110, an auxiliary unit 120 that is a box-like part attached to the bottom surface of the telephone main body 110, and a receiver 130 that is locked to the telephone main body 110.
[0013]
The telephone body 110 of the telephone 100 has a substantially rectangular operation surface 111, a substantially trapezoidal side surface 115, and a substantially rectangular bottom surface 116, and is preferably a molded product of synthetic resin. The operation surface 111 has a plurality of operation keys 112 on the right side, a display unit 113 that is, for example, a liquid crystal display panel above the operation keys 112, and a recess 114 provided on the left and upper sides. The auxiliary unit 120 has a substantially triangular side surface 121. In addition, the receiver 130 includes a receiver 131 in which a speaker is incorporated and a transmitter 132 in which a microphone is incorporated. In the normal state (or not in use), the reception unit 131 and the transmission unit 132 are inserted and locked in a pair of upper and lower recesses 114 formed on the operation surface 111 of the telephone body 110.
[0014]
On the other hand, when using the telephone 100, the user holds the center of the handset 130 and removes the handset 130 from the telephone body 110. When an incoming call is received, the handset 130 of the telephone 100 is picked up, and the receiving unit 131 and the transmitting unit 132 are brought close to the user's ear and mouth, respectively, to talk with the other party. When the handset 131 is picked up, the display unit 113 of the operation surface 111 is illuminated by the hook switch arranged in the recess 114, and the time, the telephone number of the other party, the call time, and the like are displayed. When calling the desired party using the telephone 100, the receiver 130 is picked up and the telephone number of the other party is input using the operation keys 112. The number operated in accordance with the operation of the operation key 112 is displayed on the display unit 113. The display unit 113 can also display a call time, a call charge, and the like.
[0015]
When the telephone 100 is used as a desktop type as shown in FIG. 1A, the auxiliary unit 120 described above is fixed in one direction, and the display unit 113 is arranged by its triangular side surface, as will be described in detail later. So that the upper part is higher. On the other hand, as shown in FIG. 1B, when the telephone 100 is used in a wall-mounted manner, the auxiliary unit 120 is fixed in the reverse direction (a direction reversed by 180 ° from the one direction described above). As a result, the operation surface 111 of the telephone 100 becomes substantially parallel to the wall surface (mounting surface).
[0016]
Next, a preferred embodiment of the fixing device of the present invention for fixing the auxiliary unit (or box-shaped portion) 120 to the bottom surface (or plate-shaped portion) 116 of the telephone body 110 will be described with reference to FIG. 2A is a perspective view of the telephone main body 110 shown in FIG. 1 as viewed from the bottom surface (or plate-like part) 116 side, and FIGS. 2B and 2C are auxiliary units (box-like part) 120. FIG.
[0017]
As shown in FIG. 2A, a pair of rail members 117 and elastic engagement pieces 118 are formed on the bottom surface 116 of the telephone body 110 so as to be spaced apart from each other and to stand. The rail members 117 are members having substantially L-shaped cross sections that face each other outward. The elastic engagement piece 118 is integrally formed by a pair of slits (or U-shaped slits) 119 that are parallel to the bottom surface 116, which is preferably a plastic molded product. A double-headed arrow on the bottom surface 116 of the telephone main body 110 indicates a sliding direction with the box-shaped portion 120 shown in FIGS. That is, as will be described later, the telephone body 110 and the auxiliary unit 120 are slidable in opposite directions and can be engaged with each other.
[0018]
Next, the auxiliary unit (box-shaped portion) 120 shown in FIGS. 2B and 2C includes a substantially trapezoidal opposing side wall 121, a relatively rectangular side wall 122, a relatively low side wall 123, and a bottom surface. 124, the opening edge 125, and the engaging protrusion 126 formed on the opening edge of the opposite side wall 121. That is, the auxiliary unit 120 constitutes a box-shaped part whose shape surface in the figure is an opening. The auxiliary unit 120 is detachably fixed to the bottom surface 116 of the telephone main body 110 in a positional relationship as shown in FIG. 2B, so that a desk phone shown in FIG. 2C can be detachably fixed to the bottom surface 116 of the telephone main body 110 so that the wall-mounted telephone shown in FIG. 1B can be obtained.
[0019]
Next, the elastic engagement piece 118 will be described in detail with reference to FIG. FIG. 3A is a perspective view, and FIG. 3B is a side view of the free end portion indicated by an arrow A in FIG. This elastic engagement piece 118 can be integrally formed by providing a slit 119 in a plate-like portion such as the bottom plate 116 of the telephone body 110 as described above, and cantilever-like elastic portion 118A and its free end. And an engaging portion 118B formed in the portion. For the elastic portion 118A, parameters such as thickness, width and length from the fixed base to the free end are appropriately selected according to the material so that sufficient elasticity can be obtained.
[0020]
As best shown in FIG. 3B, the engaging portion 118B has a recess 118a formed between a pair of protrusions 118b-118c. A relatively gentle taper is formed on the outer side of these protrusions 118b-118c, and the inner side is formed at an angle 118d close to a substantially right angle. Further, the recess 118 a is selected to have a size corresponding to the plate thickness of the side walls 122 and 123 of the auxiliary unit 120.
[0021]
Next, a fixing method for fixing the auxiliary unit 120 to the bottom surface 116 of the telephone body 110 will be described. First, in order to change the telephone 100 to the desktop telephone shown in FIG. 1 (A), the opening (upper surface in the drawing) of the auxiliary unit 120 shown in FIG. 2 (B) is shown in FIG. 2 (A). Cover with the bottom surface 116 of the telephone body 110. First, the elastic engagement piece 118 is arranged offset to the side wall 122 side of the auxiliary unit 120, and then slides (slides) to the side wall 123 side. Then, the protrusion 126 formed on the opposing side wall 121 of the auxiliary unit 120 slides while being sandwiched between a pair of rail members 117 that are erected on the bottom surface 116 of the telephone body 110. Then, the side wall 123 of the auxiliary unit 120 comes into contact with the taper portion of the protrusion 118b of the engagement portion 118B formed at the free end of the elastic engagement piece 118. When sliding further, the taper of the protrusion 118b is pressed by the side wall 123 of the auxiliary unit 120, the force indicated by the arrow P in FIG. 3B is applied, the elastic portion 118A of the elastic engagement piece 118 is bent, and finally Then, the side wall 123 falls into the recess 118a, and the telephone body 110 and the auxiliary unit 120 are fixed (locked). Since the angle 118d between the side walls of the recess 118a is substantially a right angle, the telephone body 110 and the auxiliary unit 120 are fixed with sufficient strength.
[0022]
In order to separate the fixed telephone body 110 and the auxiliary unit 120, the free end of the elastic engagement piece 118 is lifted by a tool such as a finger or a flat screwdriver, and the side wall 123 of the auxiliary unit 120 is lifted from the recess 118a. 110 is slid in the sliding direction described above or in the opposite direction.
[0023]
Next, a method of fixing the telephone main body 110 and the auxiliary unit 120 when the telephone 100 is the wall-hanging type shown in FIG. The bottom surface 116 of the telephone body 110 is disposed so as to cover the opening of the auxiliary unit 120 shown in FIG. Then, the protrusion 126 of the auxiliary unit 120 is engaged with a pair of rail members 117 erected on the bottom surface 116 of the telephone body 110, and the elastic engagement piece 118 slides so as to approach the side wall 123 of the auxiliary unit 120. . If the sliding continues, the taper of the protrusion 118c of the engaging portion 118B comes into contact with the side wall 122 of the auxiliary unit 120 this time. When sliding further, the elastic portion 118A is bent, and finally, the side wall 122 of the auxiliary unit 120 falls into the concave portion 118a, and the telephone body 110 and the auxiliary unit 120 are fixed (locked). The separation of the fixed telephone body 110 and the auxiliary unit 120 is performed in the same procedure as described above.
[0024]
Next, a modification of the elastic engagement piece 118 formed on the bottom surface 116 of the telephone body 110 will be described with reference to FIGS. 4 and 5. In the elastic engagement piece 118 ′ shown in FIG. 4, the elastic portion 118A is formed in a pair of arms by forming two pairs of slits on the bottom surface 116 of the telephone body 110. Then, the free ends of the pair of arms are connected to form an engaging portion 118B. Thereby, the elastic engagement piece 118 ′ is made relatively wide, and the elasticity and the engagement stability are enhanced. It is also possible to separately form the engaging portion 118B at the free ends of the pair of elastic arms.
[0025]
5 has an obtuse angle 118d on both side walls forming the recess 118a of the engaging portion 118B. Thus, by adjusting the angle 118d, the telephone body 110 and By adjusting the elastic engagement force of the auxiliary unit 120 and applying an external force of a certain value or more in the engaged state between the two, the telephone body 110 and the auxiliary unit 120 are separated without applying an external force to the free end of the elastic engagement piece 118. Is possible.
[0034]
【The invention's effect】
As understood from the above description, according to the telephone of the present invention, the following remarkable effects in practical use can be obtained. Separately formed main body and auxiliary unit can be easily and quickly attached and detached. Moreover, it is not necessary to form a plurality of specially shaped mounting holes. Furthermore, both fixing strengths can be selected in various ways. Moreover, various applications are possible and the appearance is excellent. Furthermore, since the auxiliary unit (box-shaped part) and the main body part are detachable in both directions, the operability is excellent.
[Brief description of the drawings]
1A and 1B show a preferred embodiment of a telephone according to the present invention, in which FIG. 1A is a perspective view seen from the front side of a desktop telephone, and FIG. 1B is a perspective view seen from the front side of a wall-mounted telephone.
Figure 2 shows the telephone body and the auxiliary units of the telephone in Figure 1, (A) is a perspective view seen from the bottom side of the telephone main body, (B) is a perspective view of the auxiliary unit when used as a table top, ( C) is a perspective view of an auxiliary unit when used as a wall-hanging type.
3 shows details of an elastic engagement piece formed on the bottom surface of the telephone main body shown in FIG. 1, (A) is a perspective view of the whole, and (B) is an engagement part formed at its free end. It is a side view of the arrow A direction of (A) .
FIG. 4 is an overall perspective view of a modification of the elastic engagement piece formed on the bottom surface of the telephone body .
FIG. 5 is a side view showing a modified example of the engaging portion of the elastic engaging piece shown in FIG. 3 (B).
6A and 6B show a conventional telephone, in which FIG. 6A is a perspective view of the back side of the telephone body with the sub-bottom plate separated, FIG. 6B is a side view of a desktop telephone, and FIG. 6C is a side view of a wall-mounted telephone. is there.
[Explanation of symbols]
100 phone <br/> 110 telephone body
111 Operation surface
112 Operation keys
113 display unit 116 telephone body bottom 117 rail member 118, 118 ', 118 "elastic engaging pieces 118A cantilevered resilient portion (arm)
118B engaging portion 11 9 slit 12 0 auxiliary unit 12 1 substantially trapezoidal side wall
122 Rectangle-shaped high side wall
123 Rectangular low side wall
124 Bottom of auxiliary unit
126 engagement protrusion

Claims (5)

A pair of opposed substantially trapezoidal side walls, each having a rectangular bottom surface, standing from the outer periphery of the bottom surface and having different lengths in the standing direction and parallel to these sides, and having different heights on the substantially trapezoidal side walls An auxiliary unit having a high rectangular side wall having a longer side length and a low rectangular side wall having a shorter side length of the different sides.
A telephone main body having an operation surface on the front surface side, an elastic engagement piece on the bottom surface, and being fixed by the auxiliary unit and the engagement piece so as to close the opening of the auxiliary unit facing the bottom surface of the auxiliary unit In a phone comprising
On the bottom surface of the telephone body, a pair of parallel rail members are formed in a substantially central portion so as to protrude parallel to the side of the bottom surface, and the elastic engagement is performed in the vicinity of the side of the bottom surface not parallel to the rail member. Forming a piece ,
The auxiliary unit includes an engagement protrusion formed on the pair of substantially trapezoidal side walls and engaged with the rail member of the telephone body.
A pair of substantially trapezoidal side walls formed with the engaging protrusions of the auxiliary unit are slid along the rail members while engaging the engaging protrusions with the rail members of the telephone body. The telephone is characterized in that the high rectangular side wall or the low rectangular side wall is elastically engaged and fixed to the elastic engagement piece. 2. The telephone set according to claim 1, wherein the telephone unit is selectively set to a desktop type or a wall-mounted type by changing the engagement direction of the auxiliary unit with respect to the telephone body. 3. The elastic engagement piece formed on the bottom surface of the telephone body is formed integrally with the bottom surface by forming a pair of slits substantially parallel to the bottom surface. The listed phone. 2. The elastic engagement piece formed on the bottom surface of the telephone body is formed integrally with the bottom surface by connecting free ends of a pair of arms formed on the bottom surface. 2. The telephone set according to 2. The said telephone main body and the said auxiliary | assistant unit are slidable from both directions along the said rail member formed in the bottom face of the said telephone main body, and can be attached or detached. Phone.

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