JP3773780B2 - Mobile terminal device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a portable terminal device, in particular, a cellular phone, in which a pair of cabinets are connected by a hinge portion and are foldable.
[0002]
[Prior art]
FIG. 5 is a perspective view of a conventional mobile phone. In the cellular phone, a first cabinet (1) having a display (10) for displaying information and a second cabinet (2) having an operation button (20) are foldably connected by a hinge portion (4). A stopper (5) protrudes from the second cabinet (2) toward the first cabinet (1). Until the first cabinet (1) comes into contact with the stopper (5), the two cabinets (1) and (2) are restricted from further opening at the open position where the two cabinets (1) and (2) are rotated. The mobile phone can talk at the open position and is carried at the closed position.
[0003]
[Problems to be solved by the invention]
As shown in FIG. 6, both cabinets (1) and (2) are rotated to the open position where the stopper (5) is in contact with the first cabinet (1). In this state, the display (10) or the operation button (20) may face down and may be inadvertently placed on the placement surface (6) which is a desk surface or a floor surface. In this case, when force is applied from the top of the mobile phone, specifically, when the mobile phone is pushed by hand or stepped on with a foot, the first cabinet (1) bends further from the state in contact with the stopper (5). . As a result, the cabinets (1) and (2), the stopper (5), or the hinge part (4) may be damaged due to reasons described later. The applicant has conceived of providing a configuration that does not damage the cabinet (1) (2), the stopper (5), or the hinge (4) even in such a case.
An object of the present invention is to prevent the cabinet, the stopper, or the hinge portion from being damaged even when both cabinets in the open position are placed with the display or operation buttons facing the placement surface.
[0004]
[Means for solving the problems]
A first cabinet (1) having a display (10) for displaying information and a second cabinet (2) having an operation button (20) are foldably connected by a hinge part (4), and one cabinet is connected. In the portable terminal device provided with the stopper (5) in contact with the other cabinet at the open position of both cabinets (1) and (2) ,
The hinge (4) is provided with a protrusion (15), both cabinets (1) and (2) are in the open position, and the display (10) or the operation button (20) faces the placement surface (6). Further, the tip of the projection (15) is in contact with the mounting surface (6) in a state where a load is applied in the direction of opening both the cabinets ( 1 ) and ( 2 ) .
[0005]
[Action and effect]
When the cabinets (1) and (2) in the open position are placed on the mounting surface with the display (10) or the operation button (20) facing downward, the tip of the protrusion (15) approaches the mounting surface. Yes.
In this state, even if force is applied from the top of both cabinets (1) and (2) and both cabinets (1) and (2) are bent further from the open position, the tip of the protrusion (15) is placed. Touch the surface. As a result, the cabinets (1) and (2) are restricted from further opening from the open position, and the cabinets (1) and (2), the stopper (5), or the hinge portion (4) can be prevented from being damaged.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an exploded perspective view of a mobile phone. As in the prior art, the mobile phone includes a first cabinet (1) having a display (10) for displaying a call state and the like, and a second cabinet (2) having an operation button (20). ) And rotate between the open position and the closed position. From the second cabinet (2), a stopper (5) in contact with the back surface of the first cabinet (1) in the open position protrudes. The stopper (5) may be provided in the first cabinet (1).
[0007]
At the end of the second cabinet (2), there are formed recesses (21) and (21) and projecting pieces (22) and (22) located on both sides of the recesses (21) and (21). The hinges (4) of the two cabinets (1) and (2) are provided with protrusions (11) and (11) provided at the ends of the first cabinet (1), and the recesses (21) of the second cabinet (2). The pivot (40) is inserted into the projecting piece (22) and the projecting part (11) from the outside of the projecting pieces (22) and (22), and a retaining ring (not shown) is attached to the tip of the pivot (40). It is formed by fitting. A protrusion (15) is provided upward from the protrusion (11). Two pivot shafts (40) are inserted from both sides of the projecting pieces (22) and (22) in total, but only one may be inserted from one projecting piece (22).
On the second cabinet (2), a storage hole (25) is opened in the vicinity of the hinge part (4), and the storage hole (25) is located on the rotation transition path of the protrusion (15). When both cabinets (1) and (2) are in the closed position, the projection (15) fits into the storage hole (25). As will be described later, a switch (SW) for detecting the open / closed state of both cabinets (1) and (2) is provided in the storage hole (25).
[0008]
FIG. 2 is a side view of the cellular phone in the open position, in which both cabinets (1) and (2) are opened, and the display (10) or the operation button (20) is directed downward, and is a desk surface or a floor surface. It is placed facing the mounting surface (6). In this state, the protrusion (15) is approaching the placement surface (6).
A load that opens both cabinets (1) and (2) in the open position is inadvertently applied to the first cabinet (1). Specifically, both cabinets (1) and (2) are inadvertently handled by hand. You may hold it down or step on it with your feet. The first cabinet (1) is bent in the opening direction from the open position, that is, the opening angle tends to be larger than θ in FIG. Here, θ is an obtuse angle of 180 degrees or less. However, when both cabinets (1) and (2) are opened, the projection (15) is lowered, and the tip of the projection (15) is in contact with the placement surface (6). Since the projection (15) contacts the placement surface (6), the opening of both cabinets (1) and (2) is restricted.
As a result, the cabinets (1) and (2) are restricted from further opening from the open position, and the cabinets (1) and (2), the stopper (5), or the hinge portion (4) can be prevented from being damaged. Since both cabinets (1) and (2) can be prevented from being damaged, both cabinets (1) and (2) can be made thin, and the mobile phone can be reduced in size and weight.
[0009]
The reason why the hinge (4) is damaged if the projection (15) is not provided when a load that opens both cabinets (1) and (2) in the open position is inadvertently applied is shown below. .
FIG. 3 is a side view of the two cabinets 1 and 2 in the open position, and FIG. 4 is a plan view of FIG. As shown in FIG. 3, when the first cabinet (1) bends further in the opening direction from the position in contact with the stopper (5), the first cabinet (1) rotates clockwise with the stopper (5) as a fulcrum. Directional force is added. As a result, as shown in FIG. 4, the protrusion (11) is pulled outward. The pivot (40) fitted to the protrusion (11) is pulled, and the protrusions (22) and (22) of the second cabinet (2) bend to the side as shown by a one-dot chain line in FIG. As a result, the hinge part (4) may be damaged, and there is a possibility that both the cabinets (1) and (2) will not rotate accurately. In this example, since the projection (15) is provided to restrict the two cabinets (1) and (2) from further opening from the open position, there is no possibility that the hinge portion (4) is damaged.
[0010]
As shown in FIG. 3, a switch (SW) is provided in the storage hole (25), and the switch (SW) is pushed into the protrusion (15) when the first cabinet (1) is in the closed position. Turns on. When the first cabinet (1) is opened from the closed position, the protrusion (15) is separated from the switch (SW) and the switch (SW) is turned off. The switch (SW) is connected to a circuit board (not shown) provided in at least one of the cabinets (1) and (2), and the switch (SW) detects the open / closed state of the cabinets (1) and (2). Thus, a call can be automatically made at the open position of both cabinets (1) and (2) when a call signal is received. When it returns to the closed position, it will be in an end state where the call is automatically interrupted. That is, by providing the switch (SW), the call state and the call end state are automatically switched, which is convenient.
In this example, the protrusion (15) is provided in the first cabinet (1), but may be provided in the second cabinet (2). A plurality of protrusions (15) may be provided. A storage hole (25) into which the switch (SW) is inserted may be opened in the first cabinet (1).
[0011]
The above description of the embodiments is for explaining the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof. In addition, the configuration of each part of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope described in the claims.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a mobile phone.
FIG. 2 is a side view of the mobile phone in an open position.
FIG. 3 is a side view of both cabinets in an open position.
4 is a plan view of FIG. 3;
FIG. 5 is a perspective view of a conventional mobile phone.
FIG. 6 is a side view of a state where both cabinets in the open position are placed upside down on the mounting surface.
[Explanation of symbols]
(1) First cabinet
(2) Second cabinet
(4) Hinge part
(5) Stopper
(6) Placement surface
(10) Display
(15) Protrusion
(20) Operation button

Claims (2)

A first cabinet (1) having a display (10) for displaying information and a second cabinet (2) having an operation button (20) are foldably connected by a hinge part (4), and one cabinet is connected. In the portable terminal device provided with a stopper (5) in contact with the other cabinet at the open position of both cabinets (1) and (2),
The hinge (4) is provided with a protrusion (15), both cabinets (1) and (2) are in the open position, and the display (10) or the operation button (20) faces the mounting surface (6). Furthermore, the portable terminal device, wherein the tip of the projection (15) and both cabinets are in contact with the mounting surface (6) in a state where a load is applied in the direction to open both cabinets (1) and (2).  The portable terminal device according to claim 1, wherein a switch (SW) for detecting an open / closed state of the two cabinets (1) and (2) is provided on the rotation transition path of the protrusion (15).

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