JP2006114300A - Small electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small electronic equipment in which a cap hardly comes off and attachment and detachment are easy. <P>SOLUTION: The small electronic equipment is provided with an external connector 12 exposed from an aperture 11 provided in a case 1 and a cap 2 for closing the aperture 11. The cap 2 is provided with a shank 24 provided protruding from the main body and a coming-off stop part 25 having an oblong shape, and is pivotally supported to the case 1 rotatably with the shank 24 penetrating through an installation hole 13 of vertical long shape provided in the case 1. In a first rotating posture in which the cap 2 closes the aperture 11, the long side direction of the coming-off stop part 25 and the long side direction of the installation hole 13 cross each other and the coming-off stop part 25 and the rear face of the case 1 are overlapped with a large facing area, and in a second rotating posture in which the cap 2 is rotated clockwise for 90 degrees from the first rotating posture, the long side direction of the coming-off stop part 25 and the long side direction of the installation hole 13 coincide and the coming-off stop part 25 and the rear face of the case 1 are overlapped with a small facing area, thereby engagement and detachment of the cap 2 becomes possible. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

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

  In the conventional mobile phone, for example, as shown in FIG. 9, the external connection terminal (42) is exposed from the opening (41) opened at the lower end of the housing (4), and the opening (41) By connecting the connector to the external connection terminal (41) and engaging the tip of the connector with the external connection terminal (41), a personal computer can be connected to the mobile phone in addition to a charger and an external antenna to perform mutual data communication. Can be done. A cap (3) for closing the opening (41) and protecting the external connection terminal (42) is detachably attached to the opening (41).

The cap (3) is made of an elastic material, and as shown in FIG. 10, a cover part (31) for closing the opening part (41), and a tongue piece (32) protruding from the back surface of the cover part (31). A pair of hook portions (33), (33) are formed on both side edges of the tongue piece (32). On the other hand, a pair of pins (not shown) project from the back of the opening (41) of the housing (4) shown in FIG.
When the tongue piece (32) of the cap (3) is inserted into the opening (41), the pair of hook portions (33), (33) are brought into contact with the pair of pins and bent inward to form the tongue piece ( 32) passes between the pair of pins. Thereafter, the pair of hook portions (33) and (33) are elastically restored to engage with the pair of pins. As a result, the cap (3) is attached to the housing (4) and closes the opening (41).
When connecting the mobile phone to a personal computer, the cap (3) is removed from the housing (4), and the external connection terminal (42) is exposed from the opening (41) (see Patent Document 1).

However, in the above mobile phone, the cap (3) removed from the housing (4) is separated from the housing (4), and thus the cap (3) may be lost.
In order to solve this problem, there has been proposed a mobile phone capable of exposing the external connection terminal from the opening while the cap is connected to the housing.

In the cellular phone, as shown in FIG. 11, the external connection terminal (62) is exposed from the opening (61) opened at the lower end of the housing (6), and the left side of the opening (61). Has a mounting hole (63) for mounting the cap (5).
The cap (5) is made of an elastic material, and as shown in FIG. 12, a cover part (51) for closing the opening part (61), a connecting part (52) extending from the left end of the cover part (51) to the left, A shaft portion (53) projecting from the back surface of the connecting portion (52) and a rectangular retaining portion (54) extending from the tip of the shaft portion (53) along the cover portion (51) are provided. . The connection part (52) of the cap (5) is formed thinner than the cover part (51), and the lower surface of the cover part (51) of the cap (5) is connected to the inner peripheral edge of the opening part (61). Two projecting pieces (55) and (55) are formed.
The retaining portion (54) of the cap (5) is formed so that the length extending rightward is longer than the length extending leftward from the shaft portion (53). First, the right side of the retaining portion (54) is inserted into the mounting hole (63), and then the left side of the retaining portion (54) is inserted into the mounting hole (63) while being elastically deformed. . As a result, the retaining portion (54) of the cap (5) and the mounting hole (63) of the housing (6) are engaged with each other, and the cap (5) is attached to the housing (6).

In the cellular phone, when connecting a personal computer to the external connection terminal (62), the cover (51) of the cap (5) is pulled toward the front side, and the connecting portion (52) of the cap (5) is bent. By opening the cover part (51) to an opening angle of 90 ° or more, the opening part (61) can be exposed while the cap (5) is connected to the housing (6).
JP 2002-141140 A [H01R 13/52]

However, in the conventional mobile phone shown in FIG. 11, when the facing area between the retaining portion (54) of the cap (5) and the back surface of the housing (6) when the cap (5) is attached is increased. While the cap (5) is difficult to come off from the housing (6), it is difficult to disengage the cap (5), and conversely, the retaining portion (54) of the cap (5) is opposed to the back surface of the housing (6). When the area is reduced, the cap (5) can be easily detached, but there is a conflicting problem that the cap (5) is easily detached from the housing (6).
Accordingly, an object of the present invention is to provide a small electronic device in which a cap is difficult to remove and easy to attach and remove.

A small electronic device according to the present invention includes a housing (1) having an opening (11), an external connection terminal (12) exposed from the opening (11) of the housing (1), and the opening. A cap (2) made of synthetic resin for closing the portion (11), and the cap (2) is provided in the mounting hole (13) opened in the vicinity of the opening (11) of the casing (1). And is removably engaged with the casing (1).
The cap (2) includes a body portion having a cover portion (21) for closing the opening (11) of the housing (1) from the front surface side of the housing (1), and an end portion on the back surface of the body portion A shaft portion (24) projecting from the mounting hole (13) and projecting in a direction crossing the shaft portion (24) at the tip of the shaft portion (24). ) And a retaining portion (25) that can be slidably contacted with the back surface, and the cover portion (21) closes the opening portion (11) around the shaft portion (24). The cover portion (21) can rotate between a second rotation posture in which the opening (11) is opened, and the cap (2) retaining portion (25) of the cap (2) It has a shape that overlaps with the back surface of the casing (1) in a first rotation posture with a large facing area and overlaps with a back surface of the housing (1) in a small facing area in the second rotation posture. It is characterized by that.

  In attaching the cap (2) to the small electronic device of the present invention, first, the casing (1) is elastically deformed in the second rotation posture while elastically deforming the retaining portion (25) of the cap (2). Insert into the mounting hole (13). In the second turning posture, the retaining portion (25) of the cap (2) has a shape that overlaps with the rear surface of the housing (1) with a small facing area, so that it is inserted into the mounting hole (13). The amount of elastic deformation of the retaining portion (25) necessary for this is small. In this manner, the cap (2) can be easily mounted because the retaining portion (25) can be inserted into the mounting hole (13) of the housing (1) without causing significant elastic deformation. Thereafter, the cap (2) is rotated to the first rotation posture around the shaft (24) of the cap (2), and the attachment of the cap (2) is completed.

  Usually, in the cap (2), the cover (21) closes the opening (11) of the housing (1) in the first rotation posture. In this state, even if a large force acts on the cap (2) in the removal direction, the retaining portion (25) of the cap (2) overlaps with the back surface of the housing (1) with a large facing area. Demonstrates great resistance against elastic deformation. Therefore, the retaining portion (25) of the cap (2) is disengaged from the mounting hole (13) unless an excessive force that greatly deforms the retaining portion (25) of the cap (2) acts on the cap (2). There is nothing.

  For example, when connecting a connector to the external connection terminal (12) for connection to a personal computer, the cap (2) is moved to the second rotation position around the shaft (24) of the cap (2). Rotate. In this state, since the retaining portion (25) of the cap (2) overlaps with the back surface of the housing (1) with a small facing area, a certain amount of force acts on the cap (2) in the removal direction. However, the retaining portion (25) of the cap (2) exhibits a certain degree of resistance against elastic deformation. Therefore, the retaining portion (25) of the cap (2) is not detached from the mounting hole (13), and the external connection terminal (12) is exposed while the cap (2) is connected to the housing (1). It can be made. This can prevent the cap (2) from being lost.

  In a specific configuration, the mounting hole (13) of the casing (1) is a long hole that is long in one axial direction, and the retaining portion (25) of the cap (2) depends on the shape of the long hole. In the second rotation posture, the longitudinal direction of the retaining portion (25) coincides with the longitudinal direction of the elongated hole, and the back surface of the retaining portion (25) is The tip of the shaft portion (24) is connected to a position deviated in any one direction along the longitudinal direction from the center position in the longitudinal direction.

According to the specific configuration, the distance between the one end in the longitudinal direction of the stopper (25) of the cap (2) and the shaft (24) of the cap (2) is the same as the distance between the other end and the shaft. It becomes longer than the distance with the part (24). Accordingly, the longitudinal direction of the retaining portion (25) of the cap (2) is aligned with the longitudinal direction of the mounting hole (13), and the distance of the retaining portion (25) from the shaft portion (24) is long. The cap (2) is inserted into the mounting hole (13) by inserting into the mounting hole (13) from the other end and then inserting into the mounting hole (13) while elastically deforming the other end of the retaining portion (25). Can be attached to (13). Conversely, the end of the retaining portion (25) having the shorter distance from the shaft portion (24) is taken out from the mounting hole (13) while elastically deforming, and then the longer end is mounted on the mounting hole ( By removing from 13), the cap (2) can be removed from the mounting hole (13).
According to the above installation and removal operations, the amount of elastic deformation of the retaining portion (25) required for inserting the retaining portion (25) into the mounting hole (13) or taking it out from the mounting hole (13) is further reduced. Therefore, it is possible to more easily attach and remove the cap (2).

In a specific configuration, at least one protrusion that can be engaged with and disengaged from the inner peripheral edge of the opening (11) in the first rotation posture is provided on the outer peripheral edge of the cover (21) of the cap (2). A piece (26) is formed.
According to the specific configuration, in the first rotation posture, the cover portion (21) of the cap (2) is reliably held in a state where the opening portion (11) is closed.

  According to the small electronic device of the present invention, it is difficult to remove the cap, and attachment and removal are easy.

Hereinafter, embodiments of the present invention in a mobile phone will be described in detail with reference to the drawings.
As shown in FIG. 1, a mobile phone according to the present invention includes a housing (1) having a plurality of operation keys (15) disposed on a surface thereof, and a rectangular opening formed at the lower end of the housing (1). Part (11), an external connection terminal (12) exposed from the opening (11), and a synthetic resin cap (2) that closes the opening (11). The cap (2) is a housing. It is removably engaged with a mounting hole (13) opened near the left side of the opening (11) of (1) and attached to the housing (1). The mounting hole (13) has a long side in a direction perpendicular to the surface of the casing (1) in which the operation key (15) is disposed, and is short in a direction parallel to the surface of the casing (1). It is a vertically long slot having a side.

  As shown in FIGS. 2 to 4, the cap (2) includes a cover portion (21) for closing the opening (11), a tongue piece (22) protruding from the back surface of the cover portion (21), A connecting part (23) formed to be thinner than the cover part (21) and extending leftward from the left end of the cover part (21), and a shaft part (24) protruding from the left end of the back surface of the connecting part (23) And a flat plate-like retaining part (25) extending from the tip of the shaft part (24) along the cover part (21). A plurality of projecting pieces (26), (26), and (26) project from the outer peripheral surface of the cover portion (21), and a concave portion (27) is formed at the center of the upper surface of the cover portion (21). ing.

  In a state where the cap (2) closes the opening of the housing (1), the retaining portion (25) of the cap (2) has a short side in a direction perpendicular to the surface of the housing (1), It has a horizontally long shape having long sides in a direction parallel to the surface of the housing (1). The long side length L1 of the retaining portion (25) is slightly larger than the long side length a1 of the mounting hole (13). The length L2 of the short side of the retaining portion (25) is slightly smaller than the length a2 of the short side of the mounting hole (13). Furthermore, as shown in FIG. 3, the distance L3 between one end of the retaining portion (25) extending to the cover portion (21) side of the cap (2) and the shaft portion (24) is the retaining portion (25 ) And the shaft portion (24) is formed larger than the distance L4.

5 and 6 show a state in which the cover portion (21) of the cap (2) closes the opening (11) of the housing (1), and in this state, the outer peripheral surface of the cap (2). The plurality of projecting pieces (26), (26), and (26) projecting on the inner surface are engaged with the inner peripheral edge of the opening (11).
As shown in FIG. 6, the cap (2) has the long side direction of the retaining part (25) of the cap (2) and the short side direction of the mounting hole (13), and the cap (2) is prevented from coming off. It is attached to the housing (1) in a first turning posture in which the short side direction of the portion (25) and the long side direction of the attachment hole (13) coincide. Here, since the length L1 of the long side of the retaining portion (25) of the cap (2) is larger than the length a2 of the short side of the mounting hole (13), the cap (2) is prevented from coming off. The part (25) overlaps the back surface of the housing (1) with a large facing area.

  In this state, even if a large force acts on the cap (2) in the removal direction, the retaining portion (25) of the cap (2) overlaps with the back surface of the housing (1) with a large facing area. Demonstrates great resistance against elastic deformation. Therefore, the retaining portion (25) of the cap (2) is disengaged from the mounting hole (13) unless an excessive force that greatly deforms the retaining portion (25) of the cap (2) acts on the cap (2). There is nothing.

For example, when connecting the connector to the external connection terminal (12) for connection to a personal computer, the cap (2) is rotated 90 degrees clockwise from the first rotation posture.
7 and 8 show a state in which the cap (2) is rotated 90 degrees clockwise from the first rotation posture, that is, the second rotation posture. The entire external connection terminal (12) is exposed from the opening (11) of the body (1).
In this state, as shown in FIG. 8, the long side direction of the retaining portion (25) of the cap (2) and the long side direction of the mounting hole (13) coincide with each other, and the retaining portion ( The short side direction of 25) coincides with the short side direction of the mounting hole (13). Here, since the length L1 of the long side of the retaining portion (25) of the cap (2) is formed larger than the length a1 of the long side of the mounting hole (13), the cap (2) is prevented from coming off. The portion (25) overlaps the back surface of the housing (1) with a small facing area, and even if a certain amount of force acts on the cap (2) in the removal direction, the cap (2) retaining portion (25 ) Exhibits some resistance against elastic deformation. Therefore, the retaining portion (25) of the cap (2) is not detached from the mounting hole (13), and the external connection terminal (12) is exposed while the cap (2) is connected to the housing (1). It can be made. This can prevent the cap (2) from being lost.

In the first turning posture shown in FIG. 5, a finger is placed on the recess (27) provided on the upper surface of the cover portion (21) of the cap (2), and the cover portion (21) is pulled to the front by 90. By opening up to an opening angle of more than 0 °, it is possible to expose the external connection terminal (12) from the opening (11) of the housing (1) as in the case of the conventional mobile phone.
At this time, the connecting portion (23) formed thinner than the cover portion (21) is easily elastically deformed, and the cover portion (21) is opened.

  Attachment and removal of the cap (2) are performed in the second rotational posture. That is, when attaching the cap (2), the retaining portion (25) of the cap (2) is inserted into the attachment hole (13) of the housing (1) while being elastically deformed. In the second rotating posture, the retaining portion (25) of the cap (2) has a shape that overlaps with the rear surface of the housing (1) with a small facing area, so that it is inserted into the mounting hole (13). The amount of elastic deformation of the retaining portion (25) necessary for this is small. Similarly, the amount of elastic deformation of the retaining portion (25) necessary for removal from the cap (2) is small.

  The distance L3 between one end of the retaining portion (25) extending to the cover portion (21) side of the cap (2) and the shaft portion (24) is equal to the other end of the retaining portion (25) extending to the opposite side and the shaft. Since it is formed to be larger than the distance L4 from the part (24), the end of the retaining part (25) extending to the cover part (21) side of the cap (2) is inserted into the mounting hole (13) and then retained. By inserting the other end of the portion (25) while being elastically deformed, the cap (2) can be attached to the attachment hole (13). According to the above mounting operation, the retaining portion (25) can be inserted into the mounting hole (13) of the housing (1) without greatly elastic deformation, so that the cap (2) can be easily mounted. I can do it.

  Conversely, after removing one end of the retaining portion (25) extending to the opposite side of the cover (21) of the cap (2) from the mounting hole (13) while elastically deforming, the other end of the retaining portion (25) The cap (2) can be removed from the mounting hole (13) by taking out from the mounting hole (13). According to the above detaching operation, the cap (3) can be removed more easily because the retaining portion (25) can be removed from the mounting hole (13) of the housing (1) without greatly elastic deformation. I can do it.

  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, the shape of the retaining portion (25) of the cap (2) is not limited to a rectangular shape, but overlaps with the back surface of the housing (1) in the first rotation posture with a large facing area, and the second time. It is possible to adopt various shapes having a shape that overlaps with a small facing area on the back surface of the housing (1) in a moving posture.

1 is a perspective view showing a mobile phone and a cap according to the present invention. It is the perspective view which looked at the cap from the back side. It is the top view which looked at the cap from upper direction. It is the side view which looked at the cap from the left. It is a top view which shows the obstruction | occlusion state of a cap. It is sectional drawing in CC cross section of FIG. It is a top view which shows the state at the time of engagement / disengagement of a cap. It is sectional drawing in the DD cross section of FIG. It is a perspective view which shows the conventional mobile phone and a cap. It is the top view which looked at the cap of FIG. 9 from upper direction. It is a perspective view which shows the other conventional mobile telephone and a cap. It is the perspective view which looked at the cap of FIG. 11 from the back side.

Explanation of symbols

(1) Case
(11) Opening
(12) External connection terminal
(13) Mounting hole
(2) Cap
(21) Cover part
(22) Tongue piece
(23) Connecting part
(24) Shaft
(25) Retaining part
(26) Projection
(27) Concave

Claims (3)

  A casing (1) having an opening (11), an external connection terminal (12) exposed from the opening (11) of the casing (1), and a block for closing the opening (11) A cap (2) made of synthetic resin, and the cap (2) is detachably engaged with a mounting hole (13) opened near the opening (11) of the casing (1). In the small electronic device attached to the housing (1), the cap (2) covers the opening (11) of the housing (1) from the surface side of the housing (1). A main body having (21), a shaft (24) projecting from an end of the back surface of the main body and penetrating the mounting hole (13), and the shaft at the tip of the shaft (24). (24) having a retaining part (25) projecting in a direction intersecting with the casing (1) and capable of sliding on the back surface of the casing (1), and the cover part centering on the shaft part (24) The first rotating posture (21) closes the opening (11) and the cover (21) opens the opening (11). The cap (2) can be pivoted between the second pivoting position and the retaining portion (25) of the cap (2) is largely separated from the back surface of the casing (1) in the first pivoting position. A small electronic device having a shape that overlaps with a facing area that overlaps with a facing area that is smaller than a back surface of the housing (1) in the second rotation posture.   The mounting hole (13) of the housing (1) is a long hole in one axial direction, and the retaining portion (25) of the cap (2) is in one axial direction according to the shape of the long hole. It has a long shape, and the longitudinal direction of the retaining portion (25) coincides with the longitudinal direction of the elongated hole in the second rotation posture, and the longitudinal direction of the retaining portion (25) The small electronic device according to claim 1, wherein the tip of the shaft portion (24) is connected to a position offset in any one direction along the longitudinal direction from the center position of the shaft.   On the outer peripheral edge of the cover portion (21) of the cap (2), at least one projecting piece (26) is formed that can be engaged with and disengaged from the inner peripheral edge of the opening portion (11) in the first rotation posture. The small electronic device according to claim 1 or 2.

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