JP4574376B2 - Small electronic equipment - Google Patents

Description

  The present invention relates to a small electronic device such as a mobile phone or a personal digital assistant having a cap for protecting an external connection terminal.

  In the conventional mobile phone, for example, as shown in FIG. 15, an external connection terminal (53) for connection to an external circuit is provided inside the housing (5). An opening (51) is provided for exposing the external connection terminal (23) to the outside. In addition, a cap (6) for closing the opening (51) and protecting the external connection terminal (53) is attached to the housing (5), and the vicinity of the opening (51) of the housing (5). Has a mounting hole (52) for mounting the cap (6).

  The cap (6) is made of an elastic material such as a synthetic resin, and includes a cover part (61) for closing the opening part (51), and a connecting part (64) protruding from one end of the cover part (61). And a round shaft portion (62) protruding from the back surface of the connecting portion (64) and a flange portion (63) protruding from the tip of the round shaft portion (62). The round shaft portion (62) of the cap (6) is formed with a smaller diameter than the inner diameter of the mounting hole (52) of the housing (5), while the flange portion (63) of the cap (6) is formed with a mounting hole ( 52) is larger than the inner diameter. Further, the connecting part (64) of the cap (6) is formed thinner than the cover part (61).

When the mobile phone is connected to a personal computer, the cap (6) is pulled out from the opening (51) of the housing (5) by pulling the cover (61) of the cap (6) toward the front side. ), The opening (51) of the housing (5) is exposed by rotating the cap (6) around the round shaft (62). Then, a connector connected to the computer is engaged with the external connection terminal (53) through the opening (51) (see Patent Document 1).
JP-A-10-64615 [H01R 13/52]

However, in the conventional mobile phone shown in FIG. 15, when the cap (6) is pulled out to the front, the cap (6) rotates freely around the round shaft portion (63). It was inconvenient because (5) had to be supported by hand at an opening angle that did not interfere with connector connection.
Therefore, an object of the present invention is to provide a small electronic device in which a cap is held at a constant rotation angle when a connector is connected.

In the small electronic device according to the present invention, an external connection terminal (23) for connection to an external circuit is provided inside the housing (2), and the external connection terminal (23 ) Is exposed to the outside, and a cap (3) for closing the opening (24) is attached to the housing (2). The cap (3) includes a cover part (31) that closes the opening part (24), and a retaining shaft body part (30) that protrudes from the rear end part of the cover part (31) and expands its tip part. The housing (2) is formed with a recess (20) into which the cover (31) of the cap (3) is fitted, and at the end of the recess (20), a cap is formed. A through hole (27) through which the retaining shaft body portion (30) of (3) passes is opened, and the cap (3) is a first position where the cover portion (31) is fitted into the recess (20). Then, it is possible to pull out the cover part (31) to the second position where the cover part (31) is detached from the concave part (20).
An engagement surface is formed on the inner surface of the housing (2), and the outer peripheral surface of the retaining shaft body portion (30) is pressed when the cap (3) is pulled out to the second position. Has been.

In the above-described small electronic device of the present invention, the cap (3) is normally attached to the housing (2) at the first position where the cover (31) is fitted into the recess (20) of the housing (2). It is attached. In this state, the tip of the retaining shaft body portion (30) of the cap (3) is separated from the inner surface of the housing (2), and the cap (3) is retained from the first position. It can be pulled out to a second position where the tip of the shaft body (30) is in sliding contact with the inner surface of the housing (2).
For example, when connecting the connector to the external connection terminal (12) for connection with a personal computer, the cover (31) of the cap (3) is pulled to the front side, and the cap (3) is first moved to the first. To an intermediate position between the second position and the second position.
Since the retaining shaft body portion (30) of the cap (3) is attached to the through hole (27) of the housing (2) with a margin, the cap (3) is retained at the intermediate position. The cap (3) is rotated to a predetermined rotational angle position that does not interfere with connector connection.

Thereafter, the cover (31) of the cap (3) is further pulled to the near side, and the cap (3) is moved to the second position.
When the cap (3) is pulled out to the second position, the outer peripheral surface of the retaining shaft body (30) of the cap (3) is brought into pressure contact with the engaging surface of the housing (2), and is engaged with the outer peripheral surface. Due to the frictional resistance between the mating surfaces, the cap (3) is held in a constant rotational angle posture. Accordingly, the cap (3) is not easily rotated in a state where the cap (3) is pulled out to the second position, so that the cap (3) does not interfere with connector connection. It becomes possible to hold in position.

In a specific configuration, the engagement surface of the housing (2) is formed so as to surround the retaining shaft body portion (30) of the cap (3) pulled out to the second position.
According to the specific configuration, in the state where the cap (3) is pulled out to the second position, the entire outer peripheral surface of the retaining shaft body portion (30) of the cap (3) is The cap (3) is held at a fixed rotational angle position by being pressed against an engaging surface formed so as to surround 30).

Further, in a specific configuration, the engagement surface of the housing (2) has the retaining shaft body portion (30) of the cap (3) pulled out to the second position so as to sandwich the retaining shaft body portion. It is formed on both sides of (30).
According to the specific configuration, the retaining shaft body portion (30) of the cap (3) sandwiches the retaining shaft body portion (30) with the cap (3) pulled out to the second position. The cap (3) is held at a fixed rotational angle position by being narrowed between a pair of engagement surfaces formed on both sides.

  In a more specific configuration, the retaining shaft body portion (30) of the cap (3) includes a round shaft portion (32) passing through the through hole (27) of the housing (2), and the round shaft portion ( 32) and a disc-shaped flange portion (33) extending along a surface orthogonal to the round shaft portion (32). The engagement surface of the housing (2) is The outer peripheral surface of the round shaft portion (32) is formed of a first wall surface (27a) and a second wall surface (25a) formed in opposite directions, and the cap (3) is pulled out to the second position. (32a) is pressed against the first wall surface (27a), and the outer peripheral surface (33a) of the flange portion (33) is pressed against the second wall surface (25a).

  In the specific configuration, the first wall surface (27a) is formed on the inner peripheral surface of one end of the through hole (27) provided in the housing (2), while the second wall surface (32a) is The through hole (27) is sandwiched between the first wall surface (27a) and the other end of the through hole (27). Then, with the cap (3) pulled out to the second position, the outer peripheral surface (32a) of the round shaft portion (32) of the cap (3) is pressed against the first wall surface (27a), and the collar portion The outer peripheral surface (33a) of (33) is pressed against the second wall surface (25a). As a result, the retaining shaft body portion (30) of the cap (3) is squeezed between the first wall surface (27a) and the second wall surface (25a), whereby the cap (3) is In other words, it is held at an arbitrary rotational angle position.

  According to the small electronic device of the present invention, since the cap is held at a constant rotation angle, the cap does not get in the way when the connector is connected.

Hereinafter, embodiments of the present invention in a mobile phone will be described in detail with reference to the drawings.
As shown in FIGS. 1 and 2, the mobile phone according to the present invention includes a first housing (1) and a second housing (2) that are slidably connected to each other, and a surface of the first housing (1). Includes a liquid crystal display (11) and a seesaw-type operation key (12), and an operation comprising a plurality of operation buttons (29a) and (29a) including a numeric keypad on the surface of the second housing (2). Department (29) is deployed.

  As shown in FIGS. 3 and 4, the second housing (2) is composed of an upper cabinet (21) and a lower cabinet (22), and the second housing (2) has one location on one side. There are two rectangular openings (24), (24), and (24) in two places on the other side, for a total of three places. In the second casing (2), external connection terminals (23) are provided corresponding to the openings (24), respectively. In addition, three synthetic resin caps (3), (3), and (3) are attached to the second housing (2) to protect the external connection terminals (23) by closing the openings (24). It has been. Each cap (3) is rotatably engaged with the second housing (2), and can close or expose the opening (24). ) Is provided with a recess (20) around which the cover (31) of the cap (3) is fitted.

  As shown in FIGS. 5 and 6, a through hole (27) to which the cap (3) is to be attached is opened at the end of the recess (20) of the lower cabinet (22) constituting the second housing (2). Has been. Each cap (3) has a cover portion (31) for closing the recess (20) of the second housing (2) from the front surface side of the housing (2), and an end portion on the back surface of the cover portion (31). A cap shaft portion (30) that protrudes and expands its tip portion, and each cap (3) has a round shaft portion (32) of the cap shaft portion (30) as a second housing. It is attached to the second casing (2) in a state of passing through the through hole (27) of (2). In addition, a disc-shaped flange portion (33) extending along a surface orthogonal to the round shaft portion (32) is provided at the tip of the round shaft portion (32) of the retaining shaft body portion (30) of the cap (3). ) Is projected.

  As shown in FIG. 8, the through hole (27) of the second housing (2) is a long hole in the longitudinal direction of the side surface of the second housing (2), and a semicircular region at one end in the longitudinal direction. And a rectangular region at the other end. The through hole (27) of the second housing (2) has an opening area larger than the cross-sectional area of the round shaft portion (32) of the cap (3), whereby each cap (3) has a round shaft. It can be rotated around the part (32). Further, as shown in FIG. 7, the flange portion (33) of the cap (3) has a cross-sectional area larger than the opening area of the through hole (27), thereby exhibiting a retaining effect.

  On the inner surface of the second casing (2), a stepped portion (25) is provided in the vicinity of the end of the through hole (27) on the rectangular area side toward the inside of the second casing (2). The step portion (25) has a second wall surface (25a) formed substantially perpendicular to the inner surface of the second housing (2). On the other hand, as shown in FIG. 8, a first wall surface (27a) is formed on the inner peripheral surface of the end portion on the semicircular region side of the through hole (27) so as to face the second wall surface (25a).

  7, 8, and 14 (a), the cap (3) is located at the position where the cover (31) is fitted into the recess (20) of the second housing (2) (hereinafter referred to as the first position). In this state, the surface of the collar (33) of the cap (3) facing the cover (31) is separated from the inner surface of the housing (2). The cap (3) is a position (hereinafter, referred to as a second position) in which the surface facing the cover portion (31) of the collar portion (33) is brought into sliding contact with the inner surface of the housing (2) from the first position. ) Can be pulled out.

For example, when connecting the connector to the external connection terminal (23) for connection to a personal computer, the cover (31) of the cap (3) is pulled toward the front side, and the cap (3) is first moved to the first. To an intermediate position between the second position and the second position.
9, 10 and 14 (b), the round shaft portion (32) of the cap (3) is attached to the through hole (27) of the housing (2) with a margin. At the intermediate position, the cap (3) can freely rotate around the round shaft portion (32). In this state, the cap (3) is rotated to a predetermined opening angle position that does not interfere with connector connection.

Thereafter, the cover (31) of the cap (3) is further pulled to the near side, and the cap (3) is moved to the second position.
As shown in FIGS. 11, 12, 13 and 14 (c), the outer peripheral surface (33a) of the flange (33) of the cap (3) in a state where the cap (3) is pulled out to the second position. ) Is pressed against the second wall surface (25a), and the outer peripheral surface (32a) of the round shaft portion (32) of the cap (3) is pressed against the first wall surface (27a). The pressure is narrowed between the first wall surface (27a) and the second wall surface (25a).
Therefore, even if a certain amount of force acts in the rotation direction of the cap (3), the cap (3) is slid between the outer peripheral surface (32a) of the round shaft portion (32) and the first wall surface (27a). Due to the dynamic resistance and the sliding resistance between the outer peripheral surface (33a) of the flange portion (33) and the second wall surface (25a), a certain resistance force acts on the rotation of the cap (3). As a result, the cap (3) is not easily rotated in a state where the cap (3) is pulled out to the second position. As a result, the cap (3) can be freely rotated without interfering with the connector connection. It can be held at an angular position.

  As described above, according to the mobile phone of the present invention, the cap (3) can be held at an arbitrary rotation angle. Therefore, when the connector is connected to the external connection terminal (23), the cap (3) It will not get in the way.

  In addition, each part structure of this invention is not restricted to the said embodiment, A various deformation | transformation is possible within the technical scope as described in a claim. For example, in this embodiment, the first wall surface (27a) pressed against the outer peripheral surface (32a) of the round shaft portion (32) of the cap (3) pulled out to the second position, and the outer periphery of the flange portion (33). The second wall surface (25a) pressed against the surface (33a) is formed on both sides of the retaining shaft body portion (30) with the retaining shaft body portion (30) of the cap (3) interposed therebetween. For example, when the cap (3) is pulled out to the second position, the engagement surface that the outer peripheral surface of the retaining shaft body portion (30) of the cap (3) is brought into pressure contact with the cap (3) It is also possible to employ a configuration in which the retaining shaft body portion (30) of (3) is surrounded and provided over the entire outer peripheral surface of the retaining shaft body portion (30).

It is a perspective view which shows the closed state of the mobile telephone which concerns on this invention. It is a perspective view which shows the open state of this mobile telephone. It is a perspective view which shows the state which the cap closed the opening part. It is a perspective view which shows the state which the cap exposed the opening part. It is a perspective view which shows the state before and behind attachment of a cap. It is a perspective view which shows the state before and behind attachment of a cap, changing the attachment angle of a cap. It is a top view which shows the state which closed the opening part with the cap. It is sectional drawing which follows the AA line of FIG. It is a top view which shows the state which pulled out the cap to the near side. It is sectional drawing which follows the BB line of FIG. It is a top view which shows the state which pulled out the cap further forward. It is sectional drawing which follows the CC line of FIG. It is sectional drawing which follows the DD line | wire of FIG. It is a series of sectional views showing the operation of pulling the cap forward. It is a perspective view which shows the conventional mobile phone.

Explanation of symbols

(1) First housing
(2) Second housing
(20) Concave
(21) Upper cabinet
(22) Lower cabinet
(23) External connection terminal
(24) Opening
(25) Step
(25a) Second wall
(27) Through hole
(27a) First wall
(3) Cap
(30) Retaining shaft body
(31) Cover part
(32) Round shaft
(32a) Outer surface
(33) Buttocks
(33a) Outer peripheral surface

Claims (6)

An external connection terminal (23) for connection to an external circuit is arranged inside the housing (2), and the housing (2) has an opening for exposing the external connection terminal (23) to the outside. And a cap (3) for closing the opening (24) is attached to the housing (2). The cap (3) is attached to the opening (24). A cover portion (31) that covers the cover portion, and a retaining shaft body portion (30) that projects from the end of the back surface of the cover portion (31). A round shaft portion (32) projecting from the rear end of the portion (31), and a flange portion (33) provided at the tip of the round shaft portion (32), the housing (2) Is formed with a recess (20) into which the cover (31) of the cap (3) is fitted, and at the end of the recess (20) is a round shaft of the retaining shaft body (30). A through hole (27) through which the part (32) passes is opened, and the cap (3) is a first part in which the cover part (31) is fitted into the concave part (20). In a small electronic device capable of pulling the cover part (31) from the position to the second position separated from the recess (20),
An engagement surface is formed on the inner surface of the housing (2), and the outer peripheral surface of the retaining shaft body portion (30) comes into pressure contact when the cap (3) is pulled out to the second position. ,
When the cap (3) is installed at the first position, the surface of the flange (33) facing the cover (31) is separated from the inner surface of the housing (2). Small electronic equipment. 2. The small-sized electronic device according to claim 1, wherein an outer peripheral surface of the retaining shaft body portion is separated from the engagement surface in a process in which the cap is pulled out from the first position to the second position. machine. 3. The surface of the flange portion (33) facing the cover portion (31) is in sliding contact with the inner surface of the housing (2) when the cap (3) is pulled out to the second position. The described small electronic device. Engaging surface of the housing (2), any of the second position to the drawn-out cap (3) of the retaining shaft body portion (30) claims 1 to 3 is formed to surround the a small electronic device according to any. The engagement surface of the housing (2) is formed on both sides of the retaining shaft body (30) with the retaining shaft body (30) of the cap (3) pulled out to the second position. The small electronic device according to claim 4 . The flange portion (33) of the retaining shaft body portion (30) has a disk shape extending along a surface orthogonal to the round shaft portion (32), and the engagement surface of the housing (2) is: The outer peripheral surface of the round shaft portion (32) is formed of a first wall surface (27a) and a second wall surface (25a) formed in opposite directions, and the cap (3) is pulled out to the second position. The small electronic device according to claim 5 , wherein (32a) is pressed against the first wall surface (27a), and an outer peripheral surface (33a) of the flange portion (33) is pressed against the second wall surface (25a).

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