JP2010078112A - Small size electronic equipment - Google Patents

Abstract

Disclosed is a small electronic device in which a pair of housings are connected to each other via a hinge mechanism.
In a small electronic device according to the present invention, a hinge mechanism 3 includes a first hinge shaft 41, a second hinge shaft 51, a connection frame 31 that connects the hinge shafts so that they cannot approach and separate from each other, and a first hinge shaft. A first stopper 42 that should rotate integrally with the housing 1, a second stopper 52 that should rotate integrally with the second housing 2, a first convex portion 33 projecting from the connection frame 31, and a second The second stopper 52 is provided with a closed-time receiving surface 54 with which the second convex portion 35 should abut in the closed state of both housings, and the first stopper 42 includes In the closed state of both housings, a closed-time receiving surface 44 is formed that should be opposed to the first convex portion 33 with a gap G therebetween.
[Selection] Figure 4

Description

  The present invention relates to a small electronic device in which a pair of housings are connected to each other via a hinge mechanism so as to be opened and closed.

  In this type of small electronic device, as shown in FIG. 1, the first housing (1) and the second housing (2) are connected to each other via a parallel biaxial hinge mechanism (3). It is possible to open and close both housings (1) and (2) as shown in FIG.

Conventionally, a parallel biaxial hinge mechanism has been proposed in which the frames of both housings are connected to each other by a link mechanism or a gear mechanism (Patent Documents 1 and 2). By adopting such a parallel biaxial hinge mechanism, the rotation direction of the first casing around one hinge axis and the rotation direction of the second casing around the other hinge axis are opposite to each other. Thus, the rotation direction of both housings is restricted.
JP 2005-207465 A JP 2008-14449 A

  However, in a parallel biaxial hinge mechanism that employs a link mechanism or a gear mechanism, there is backlash between the link portions and backlash between the gears. In the state where the body (2) is closed, when a force in the sliding direction indicated by the broken arrow in the figure is applied to one of the housings, the hinge shaft of the other housing rotates, and both housings There was a problem that the body was displaced in the sliding direction, which caused both housings to slightly open.

  Accordingly, an object of the present invention is to suppress as much as possible the displacement in the sliding direction in the closed state of both housings in a small electronic device in which a pair of housings are connected to each other via a parallel biaxial hinge mechanism so as to be opened and closed. That is.

  In the small electronic device according to the present invention, the hinge mechanism (3) includes a first hinge shaft (41) serving as a rotation shaft of the first housing (1) and a first rotation shaft serving as a rotation shaft of the second housing (2). Two hinge shafts (51), a connecting frame (31) for connecting the hinge shafts (41) and (51) to each other so as not to approach and separate from each other, and a first housing (1) centering on the first hinge shaft (41) A first stopper (42) to be rotated integrally; a second stopper (52) to be rotated integrally with the second housing (2) about the second hinge shaft (51); and the connecting frame ( 31) projecting from the first hinge shaft (41) and projecting from the second hinge shaft (51) to the connecting frame (31). And a second convex portion (35).

  The second stopper (52) is formed with a closed-time receiving surface (54) to which the second convex portion (35) should abut in the closed state of both housings (1) and (2). The first stopper (42) is provided with a closed-time receiving surface (1) where the first convex portion (33) should be opposed with a predetermined gap G in the closed state of both housings (1) and (2). 44) is formed.

  In the above-described small electronic device of the present invention, when both the housings (1) and (2) are closed to the fully closed position, the second protrusion (35) is formed on the receiving surface (54) when the second stopper (52) is closed. However, the first protrusion (33) does not come into contact with the closing receiving surface (44) of the first stopper (42), and a predetermined gap G is formed between them. Is done.

  Therefore, there was some dimensional error (tolerance) between the first stopper (42) and the first convex portion (33) and between the second stopper (52) and the second convex portion (35). However, when both housings (1) and (2) are closed, the second protrusion (35) abuts against the closing receiving surface (54) of the second stopper (52), whereas the first protrusion (35) contacts the first stopper (52). Since the first convex portion (33) does not come into contact with the receiving surface (44) when the housing frame (4) is closed, both the housings (1) and (2) can always be closed to the fully closed position. I can do it.

  When a force that slides the second housing (2) is applied to the first housing (1), the hinge mechanism (3) has a second force relative to the connecting frame (31) depending on the direction of the acting force. When the rotational force is applied to open the first housing (1) and close the second housing (2), the first housing (1) is closed to the connection frame (31) and the second housing (2 ) May be applied.

In the former case, the second protrusion (35) is received by the closing receiving surface (54) of the second stopper (52), and the closing direction of the second housing (2) with respect to the connecting frame (31) Is prevented from rotating, so that there is no deviation between the two cases (1) and (2).
In the latter case, there is a gap G between the first protrusion (33) and the closing receiving surface (44) of the first stopper (42), and depending on the size of the gap G, The first casing (1) is allowed to rotate in the closing direction with respect to the connecting frame (31), and a gap is generated between the two casings (1) and (2), but the gap G is set to the minimum necessary size. By doing so, it is possible to suppress as much as possible the deviation between the two cases (1) and (2).

In a specific configuration, the hinge mechanism (3) includes a spring (6) that urges both the housings (1) and (2) toward the closed state.
Thereby, both housings (1) and (2) are urged toward the fully closed position, and both housings (1) and (2) are closed without a gap.

More specifically, the hinge mechanism (3) includes a first casing frame (4) to which the first casing (1) is to be connected and a second casing to which the second casing (2) is to be connected. A housing frame (5), the first hinge shaft (41) is installed on the first housing frame (4), the first stopper (42) is formed, and a second housing frame ( 5), the second hinge shaft (51) is installed and the second stopper (52) is formed.
Thus, the positions of the first stopper (42) and the second stopper (52) can be accurately defined with respect to both the casings (1) and (2).

  According to the small electronic device of the present invention, the displacement in the sliding direction in the closed state of both housings can be made smaller than in the past.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
As shown in FIG. 1, a small electronic device according to the present invention includes a first housing (1) having a plurality of operation keys (11) disposed on the inner surface and a second housing having a display (21) disposed on the inner surface. It is composed of a body (2) and a parallel biaxial hinge mechanism (3) for connecting the two casings (1) and (2) to each other. The open state shown in FIGS. 1 and 3 and FIGS. Opening and closing is possible between the closed states shown.
As shown in FIG. 1, the inner surface of the first housing (1) has a plurality of spacers with which the inner surface of the second housing (2) should come into contact when the second housing (2) is closed. (7) (7) is deployed.

As shown in FIGS. 5 and 6, the parallel biaxial hinge mechanism (3) includes a first housing frame (4) to which the first housing is coupled and a first housing frame to which the second housing is coupled. Two housing frames (5) and (5); a first hinge shaft (41) which is installed on the first housing frame (4) and serves as a rotation axis of the first housing; and a second housing frame (5) A second hinge shaft (51) which is installed on (5) and serves as a rotation shaft of the second housing; and a connecting frame (31) for connecting the hinge shafts (41) and (51) so that they cannot approach and separate from each other. It is.
In the following description, the right end of each member shown in FIG. 6 is referred to as the right end regardless of the illustrated direction, and the left end is referred to as the left end regardless of the illustrated direction. .

As shown in FIG. 7, a first support plate (32) and a second support plate (34) project from the top and bottom of the right end of the connecting frame (31), and the first support plate (32) The first bearing piece (38) is connected to the second support plate (34), and the second bearing piece (39) is connected thereto.
The right end of the first hinge shaft (41) passes through the first bearing piece (38), and the right end of the second hinge shaft (51) passes through the second bearing piece (39). Yes.

As shown in FIG. 8, a first support plate (32) and a second support plate (34) are provided on the left end portion of the connection frame (31) so as to protrude vertically. The first bearing piece (36) is connected to the second support plate (34), and the second bearing piece (37) is connected thereto.
The left end of the first hinge shaft (41) passes through the first bearing piece (36), and the left end of the second hinge shaft (51) passes through the second bearing piece (37). Yes.

  As shown in FIG. 5, the first bearing piece (36) has a spring (6) for urging the connecting frame (31) from the neutral position to the opening direction and the closing direction with respect to the first housing frame (4). In addition, the second bearing piece (37) includes a spring (6) for urging the second housing frame (5) from the neutral position to the opening direction and the closing direction with respect to the connection frame (31). Has been.

As shown in FIG. 9, at the right end of the first hinge shaft (41), the first housing frame (4) has a receiving surface when opened at a position eccentric from the center of the first hinge shaft (41). A first stopper (42) having (43) and a closing receiving surface (44) is formed.
At the right end of the second hinge shaft (51), the second housing frame (5) has an open receiving surface (53) and a closed position at a position eccentric from the center of the second hinge shaft (51). A second stopper (52) having a receiving surface (54) is formed.

Further, as shown in FIG. 10, at the left end of the first hinge shaft (41), the first housing frame (4) is received at the position eccentric from the center of the first hinge shaft (41). A first stopper (42) having a stop surface (43) and a closing receiving surface (44) is formed.
At the left end of the second hinge shaft (51), the second housing frame (5) has an open receiving surface (53) and a closed position at a position eccentric from the center of the second hinge shaft (51). A second stopper (52) having a receiving surface (54) is formed.

  As shown in FIG. 7, at the right end portion of the first hinge shaft (41), a first convex portion (33) is provided on the side surface of the first bearing piece (38) so as to protrude rightward, and the first stopper ( 42) is engaged. In addition, at the right end portion of the second hinge shaft (51), a second convex portion (35) is projected rightward on the side surface of the second bearing piece (39), and is engaged with the second stopper (52). Match.

  As shown in FIG. 8, at the left end portion of the first hinge shaft (41), a first convex portion (33) is provided on the side surface of the first support plate (32) so as to protrude leftward, and the first stopper ( 42) is engaged. Further, at the left end portion of the second hinge shaft (51), a second convex portion (35) is projected leftward on the side surface of the second support plate (34), and is engaged with the second stopper (52). Match.

  In the open state of the first housing (1) and the second housing (2), as shown in FIG. 3, the first convex portion (33) is caused by the open receiving surface (43) of the first stopper (42). While being received, the second convex portion (35) is received by the open receiving surface (53) of the second stopper (52), and the opening angle of both the housings (1) and (2) is defined.

By closing the second housing (2) with respect to the first housing (1) from the open state shown in FIG. 3 to the closed state shown in FIG. ) Rotates about the first hinge shaft (41) in the closing direction, and accordingly, the first convex portion (33) rotates about the first hinge shaft (41), and the first stopper (42 ) Closes to the receiving surface (44) when closed.
In addition, the second housing frame pivots in the closing direction about the second hinge shaft (51) with respect to the connecting frame (31), and the second stopper (52) pivots accordingly. The receiving surface (54) approaches the second convex portion (35).

  As shown in FIG. 4, the inner surface of the second housing (2) comes into contact with the spacer (7) disposed on the inner surface of the first housing (1), and both the housings (1) and (2) are fully closed. In the closed state that has reached the position, the second convex portion (35) is received by the receiving surface (54) when the second stopper (52) is closed, but the first convex portion (33) is the first stopper. A predetermined gap G is provided between the closed receiving surface (44) and the closed receiving surface (44).

In this state, the second convex portion (35) abuts on the closing receiving surface (54) of the second stopper (52), and the urging force of the spring (6) is received by the closing receiving surface (54). However, since there is a gap G between the first protrusion (33) and the receiving surface (44) when the first stopper (42) is closed, the urging force by the spring (6) is closed. The two cases (1) and (2) are urged toward the closed position without being received by the hour receiving surface (44).
As a result, the inner surface of the second housing (2) is pressed against the spacer (7) disposed on the inner surface of the first housing (1), and both the housings (1) and (2) are held closed. Will be.

When the force which slides the 2nd housing | casing (2) to the direction shown by the arrow of the broken line in FIG. 4 acts, a parallel biaxial hinge mechanism (3) has a 1st housing | casing with respect to a connection frame (31). The rotational force that opens (1) and closes the second casing (2) acts.
In this case, the second protrusion (35) is received by the closing receiving surface (54) of the second stopper (52), and the rotation of the second casing (2) in the closing direction relative to the connecting frame (31) is prevented. As a result, the second housing (2) is not displaced.

When a force that slides the second housing (2) in the direction opposite to the direction indicated by the broken arrow in FIG. 4 is applied, the parallel biaxial hinge mechanism (3) is connected to the connecting frame (31). A rotational force that closes the first casing (1) and opens the second casing (2) acts.
In this case, there is a gap G between the first protrusion (33) and the closing receiving surface (44) of the first stopper (42), and the connecting frame is selected according to the size of the gap G. The first casing (1) is allowed to rotate in the closing direction with respect to (31) and the second casing (2) is displaced, but the second gap can be set by setting the gap G to the minimum necessary size. The displacement of the housing (2) can be suppressed as much as possible.

  In this manner, according to the small electronic device according to the present invention, the displacement in the sliding direction in the closed state of both the casings (1) and (2) can be made smaller than that in the conventional case. (1) It is possible to prevent the situation where (2) is slightly opened in the closed state.

  On the other hand, in the conventional parallel biaxial hinge mechanism, the first stopper (42) and the second stopper (52) are formed with an open receiving surface (43) (53) that should function in the open state. However, since the closing receiving surface (44) (54) that should function in the closed state was not formed, both cases would be subject to a sliding force acting on one of the cases. There was a big gap between them.

  Further, in the small electronic device according to the present invention, since the above-described displacement suppression mechanism is configured on both sides of the parallel biaxial hinge mechanism (3), the second casing (2) with respect to the first casing (1). The deviation is suppressed equally on both sides of the housing. Therefore, even when both the casings (1) and (2) have a laterally long outer shape, the occurrence of a slight deviation is not noticeable.

  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 the closed state of both housings (1) and (2), the first convex portion (33) and the closing receiving surface (44) of the first stopper (42) are in contact with each other, and the second convex portion ( It is also possible to employ a configuration in which a predetermined gap G is formed between 35) and the closing receiving surface (54) of the second stopper (52).

It is a perspective view which shows the open state of the small electronic device which concerns on this invention. It is a perspective view which shows the closed state of this small electronic device. It is sectional drawing which expands and shows the principal part of the open state of this small electronic device. It is sectional drawing which expands and shows the closed state of this small electronic device. It is a perspective view of a parallel biaxial hinge mechanism. It is a front view of a parallel biaxial hinge mechanism. It is the perspective view which looked at the right side part of the parallel biaxial hinge mechanism from the back side. It is the perspective view which looked at the left part of the parallel biaxial hinge mechanism from the back side. It is a right view of a parallel biaxial hinge mechanism. It is a left view of a parallel biaxial hinge mechanism.

Explanation of symbols

(1) First housing
(11) Operation keys
(2) Second housing
(21) Display
(3) Parallel biaxial hinge mechanism
(31) Connecting frame
(33) First convex part
(35) Second convex part
(4) First housing frame
(41) First hinge shaft
(42) First stopper
(43) Opening receiving surface
(44) Receiving surface when closed
(5) Second housing frame
(51) Second hinge shaft
(52) Second stopper
(53) Receiving surface when open
(54) Receiving surface when closed
(6) Spring
(7) Spacer

Claims (3)

In a small electronic device in which a first housing and a second housing are connected to each other via a hinge mechanism so as to be opened and closed,
The hinge mechanism includes a first hinge shaft serving as a rotation shaft of the first housing, a second hinge shaft serving as a rotation shaft of the second housing, and a connecting frame that connects the hinge shafts so as not to approach and separate from each other. A first stopper that rotates together with the first housing around the first hinge axis; a second stopper that rotates together with the second housing around the second hinge shaft; The second stopper includes a first convex portion protruding from the first hinge shaft and a second convex portion protruding from the second hinge shaft to the connection frame. A closed-side receiving surface to which the second convex portion should abut in a closed state of both housings is formed, and the first convex portion is formed in the first stopper in a closed state of both housings. Is formed with a closed receiving surface that should be opposed to each other with a predetermined gap G. Electronic devices.   The small electronic device according to claim 1, wherein the hinge mechanism includes a spring that biases both housings toward a closed state.   The hinge mechanism includes a first housing frame to which a first housing is to be connected and a second housing frame to which a second housing is to be connected, and the first hinge shaft is attached to the first housing frame. The first stopper is formed, the second hinge shaft is installed on the second housing frame, and the second stopper is formed. Small electronic equipment.

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