JP2013113375A - Biaxial hinge, and electronic apparatus provided with the biaxial hinge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a biaxial hinge adapted to achieve size reduction while reducing costs and securing necessary strength, and an electronic apparatus.SOLUTION: The biaxial hinge includes: a pair of base members attached to a first casing; a first hinge shaft formed by cutting work and rotatably journaled between journaling piece parts of the respective base members; a second hinge shaft rotatably attached in an orthogonal state to the first hinge shaft; a support member fixed to the second hinge shaft and attached to a second casing; a first rotation control means provided between at least one journaling piece part of the base member and the first hinge shaft for controlling rotation of the first hinge shaft; and a second rotation control means provided between the first hinge shaft and the second hinge shaft for controlling rotation of the second hinge shaft. The biaxial hinge is used in the electronic apparatus.

Description

  The present invention relates to a device body and a display device in a camera device such as a video camera or a digital camera, a portable device such as a mobile phone, a PDA, or a Zaurus (registered trademark), a small electronic device such as a notebook computer or a car navigation device. The present invention relates to an electronic apparatus provided with a biaxial hinge that is rotatably coupled to each other and a biaxial hinge.

  Camera devices such as video cameras and digital cameras, mobile devices such as mobile phones, PDAs, and Zaurus (registered trademark), and small electronic devices such as notebook computers and car navigation devices, the display device has a two-axis hinge on the device body. It is known that it is mounted so as to be rotatable in two directions. As this biaxial hinge, the display device can be opened and closed by swinging up and down relative to the device body via the first hinge shaft, and the display device can be opened and closed with respect to the device body. Proposed a biaxial hinge that can be rotated around the axis of a second hinge shaft extending in a direction perpendicular to the first hinge shaft relative to the device body when the shaft is opened up to 90 °. (For example, refer to Patent Document 1).

  The biaxial hinge described in Patent Document 1 is attached with a predetermined interval on the side of the first housing 2 when a member name common to that of the present invention is changed to a member name according to the present invention. A base portion having a pair of bearing piece portions, an upper piece portion, and a pair of attachment piece portions bent from both ends of the upper piece portion, and one attachment piece portion is swung up and down to one bearing piece portion A bracket part that is mounted so as to be able to rotate up and down via a shaft part, a cylindrical case is attached to the other mounting piece part, and this cylindrical case is attached to a bearing piece part of the base part so as to be able to rotate up and down via a first hinge shaft And a support member that is rotatably attached to the flat portion of the bracket portion in the horizontal direction via the second hinge shaft and supports the second housing side, and a rotation angle of the second hinge shaft attached to the support member. Regulating stopper And a rotation control means for the support member provided between the bearing piece of the base member and the cylindrical case. The rotation control means includes a fixed cam member inserted through the first hinge shaft and fixed to the bearing piece, and a rotary cam inserted through the first hinge shaft and fixed to the cylindrical case and opposed to the fixed cam member. It comprises a member and elastic means that is wound around the first hinge shaft and elastically provided between the rotating cam member and the cylindrical case.

JP 2006-220198 A

  The biaxial hinge described in Patent Document 1 has a bracket part in addition to the first hinge shaft, and has a stopper piece attached to the lower surface side of the upper part of the bracket part. In addition, there is a problem that the production cost is high due to the complicated structure, and there is also a problem in strength.

  An object of the present invention is to provide a biaxial hinge capable of reducing the cost by reducing the number of parts and securing the necessary strength, and an electronic apparatus including the biaxial hinge. There is.

  A biaxial hinge according to the present invention for achieving the first object has an attachment piece portion and a shaft support piece portion bent from the attachment piece portion. A pair of base members to which the attachment pieces are attached to any one of the two cases with a predetermined interval, and a shaft that is rotatably supported between the shaft support pieces of each of the base members A first hinge shaft formed by cutting, a second hinge shaft rotatably attached to a substantially central portion of the first hinge shaft in an orthogonal state, and the first housing fixed to the second hinge shaft, A support member attached to either one of the second housings, provided between at least one shaft support piece of the base member and the first hinge shaft, and attached to an end of the first hinge shaft. The first hi A first rotation control means for controlling the rotation of the first hinge shaft, the first rotation control means for controlling the rotation of the first hinge shaft, and the first hinge shaft and the second hinge; And a second rotation control means that has a second stopper member provided between the shaft and attached to an end of the second hinge shaft, and controls the rotation of the second hinge shaft. It is characterized by that.

  According to the present invention, the first rotation control means is a first stopper that comes into contact with the mounting piece portion of the base member according to the rotation angle of the first hinge shaft provided at the end portion of the first hinge shaft. A fixed cam member in which the first hinge shaft is rotatably inserted into a shaft supporting hole provided in the axial direction of the shaft core portion of the member, which is engaged with and attached to the shaft supporting piece portion, and the fixing The first hinge shaft is slidable in the axial direction by engaging and inserting the deformed small-diameter portion of the first hinge shaft into the deformed insertion hole provided in the axial direction of the axial center of the first hinge shaft in contact with the cam member. The rotating cam member and elastic means that is wound around the first hinge shaft and presses the rotating cam member toward the fixed cam member.

  The present invention further includes a second stopper member, wherein the second rotation control means is located in an engagement recess provided in the first hinge shaft, and is attached to an end of the second hinge shaft; The second hinge shaft is inserted into an insertion hole provided in the axial direction of the shaft core portion, and is constituted by a leaf spring accommodated and fixed in a fixing recess provided on the first hinge shaft following the engaging recess. be able to.

  In the present invention, a suction means may be provided between the second stopper member of the second rotation control means and the leaf spring.

  The present invention may further comprise a first mounting piece portion and a second mounting piece portion formed by bending the mounting piece portion of the base member from the shaft support piece portion.

  In the present invention, the second stopper member can be configured to abut on a contact surface provided on an end surface of an engaging recess provided on the second hinge shaft.

  The electronic apparatus according to the present invention is characterized in that the biaxial hinge according to the present invention is used as a hinge for opening and closing the first casing and the second casing.

  As described above, according to the two-axis hinge and the electronic apparatus including the two-axis hinge according to the present invention, the configuration in which the support member is pivotally supported to be openable and closable with respect to the base member attached to the first housing side is as follows. Since only one hinge shaft is used, and the first hinge shaft is formed by cutting a metal round bar, the manufacturing cost can be reduced, the size can be reduced, and sufficient strength can be maintained. Can be played.

  Further, since the first stopper member attached to the first hinge shaft is brought into contact with the attachment piece of the base member attached to the first housing, the strength of the biaxial hinge is improved even if the size is reduced. Was able to.

  Furthermore, since the mounting piece portion of the base member attached to the first housing side is formed by bending the shaft supporting piece portion to form the first mounting piece portion and the second mounting piece portion, the mounting strength can be increased. It is a thing.

  And since the stopper part of the 2nd stopper member was made to contact | abut to the contact surface formed in the end surface of the recessed part for engagement, it can show | play the effect that intensity | strength can be increased while simplifying a structure. It is.

It is a perspective view of the video camera which is an example of the electronic device using the biaxial hinge which concerns on this invention. It is a front view of the biaxial hinge which concerns on this invention. It is a top view of the biaxial hinge which concerns on this invention. It is a disassembled perspective view of the biaxial hinge which concerns on this invention. It is a partial exploded perspective view of the biaxial hinge concerning the present invention. It is a perspective view explaining operation | movement of the biaxial hinge which concerns on this invention. It is a perspective view explaining operation | movement of the biaxial hinge which concerns on this invention. It is a perspective view explaining operation | movement of the biaxial hinge which concerns on this invention. The 1st hinge shaft of the biaxial hinge which concerns on this invention is shown, (a) is the perspective view seen from one side, (b) is the perspective view seen from the other side. The fixed cam member of the biaxial hinge which concerns on this invention is shown, (a) is the perspective view seen from one side, (b) is the perspective view seen from the other side. The rotation cam member of the biaxial hinge which concerns on this invention is shown, (a) is the perspective view seen from one side, (b) is the perspective view seen from the other side. The 2nd stopper member of the biaxial hinge concerning the present invention is shown, (a) is a top view and (b) is a perspective view. It is an expansion perspective view of the leaf | plate spring of the biaxial hinge which concerns on this invention.

  Hereinafter, a biaxial hinge and an electronic apparatus using the biaxial hinge according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 shows a video camera as an example of an electronic device embodying the present invention. A display unit 3 can be opened and closed with respect to a device main body 2 of the video camera 1 in a portion surrounded by a one-dot chain line indicated by an arrow A. It is attached via a biaxial hinge according to the present invention which is not shown so as to be rotatable. In the following description, for convenience, the device main body 2 will be described as the first housing 2 and the display unit 3 will be described as the second housing 3.

  2-13 is a figure which shows an example of the biaxial hinge 4 which concerns on this invention. 2 to 6 show the biaxial hinge 4 according to the present invention from a direction different from the mounting direction to the video camera 1 shown in FIG. , 6 is attached to the first housing 2 side, and the support member indicated by the instruction symbol 9 is attached to the second housing 3 side.

  The biaxial hinge 4 according to the present invention includes first mounting pieces 5a and 6a, shaft supporting pieces 5b and 6b formed by bending the first mounting pieces 5a and 6a, and the shaft supporting pieces, respectively. 5b, 6b and second mounting pieces 5c, 6c. The first mounting pieces 5a, 6a and the second mounting pieces 5c, 6c are spaced apart from each other on the first housing 2 side. A pair of base members 5, 6 that are provided and attached, and a metallic round bar, such as stainless steel, that is rotatably supported between the shaft support pieces 5 b, 6 b of the base members 5, 6. A first hinge shaft 7 formed by cutting, a second hinge shaft 8 rotatably attached to a substantially central portion of the first hinge shaft 7 in an orthogonal state, and a second hinge shaft 8 fixed to the second hinge shaft 8 2 The support member 9 attached to the housing 3 side and the base member 5 A first attachment of the base members 5 and 6 according to the rotation angle of the first hinge shaft 7 provided between the support piece 5 b and the first hinge shaft 7 and attached to both ends of the first hinge shaft 7. The first rotation control means 11 for controlling the rotation of the first hinge shaft 7, the first stopper shafts 10, 10 abutting against the pieces 5 a, 6 a, and the first hinge shaft 7 and the second hinge shaft 8. There is a second stopper member 12 which is provided in the engagement recess 7c provided in the first hinge shaft 7 and is attached to the end of the second hinge shaft 8, and the second hinge shaft And a second rotation control means 13 for controlling the rotation of the motor 8.

  The electronic device is not limited to the video camera 1 described in the embodiment, but includes a camera device such as a digital camera, a portable device such as a mobile phone, PDA, and Zaurus (registered trademark), a notebook computer, a car navigation device, and the like. Examples include small electronic devices. For example, first mounting piece portions 5 a and 6 a and second mounting piece portions 5 c and 6 c of base members 5 and 6 are attached to the first housing 2, and a support member 9 is attached to the second housing 3. The support member 9 may be attached to the first housing 2 and the base members 5 and 6 may be attached to the second housing 3.

  The base members 5 and 6 are substantially rectangular flat plate-like first attachment pieces 5a and 6a attached to the first housing 2 side, respectively, and shaft support pieces 5b bent from the first attachment pieces 5a and 6a. 6b and second mounting piece portions 5c and 6c bent from the shaft support piece portions 5b and 6b, which are formed by, for example, pressing a stainless steel metal plate. The shaft support piece 5b is provided with a deformed mounting hole 5d having a substantially keyhole shape for fixing a fixed cam member 14 to be described later, and the end of the first hinge shaft 7 is rotatably provided on the shaft support piece 6b. A supporting shaft hole 6d is provided. The base members 5 and 6 include mounting holes 5f and 5g provided in the first mounting piece 5a and the second mounting piece 5c of the base member 5, and the first mounting piece 6a and the second mounting piece of the base member 6, respectively. Attaching screws (not shown) are attached to the side of the first housing 2 shown in FIG. 1 through the attachment holes 6f and 6g provided in the portion 6c with a predetermined interval. However, as described above, the base members 5 and 6 have an embodiment in which they are attached to the second housing 3 side.

  In addition, if the base members 5 and 6 are provided with the first attachment pieces 5a and 6a and the second attachment pieces 5c and 6c formed by bending the shaft support pieces 5b and 6b, these first attachment pieces 5a. , 6a and the second attachment pieces 5c, 6c are attached to the first housing 2 side, thereby increasing the attachment strength of the shaft support pieces 5b, 6b, but increasing the thickness of the base members 5, 6 Thus, it is possible to omit one of the first attachment piece portions 5a and 6a or the second attachment piece portions 5c and 6c. Therefore, in the present specification and claims, the term “attachment piece portion” includes one or both of the first attachment piece portion and the second attachment piece portion.

  Next, as shown in FIG. 9, the first hinge shaft 7 has a large diameter portion 7d, a flat portion 7e provided on one side surface in the axial direction of the large diameter portion 7d, and the flat portion 7e. The mounting hole 7a of the 2nd hinge shaft 8 provided in the direction orthogonal to the said flat part 7e in the approximate center part of the 1st hinge shaft 7 whole, and the one side part side of this mounting hole 7a were provided. Following the fixing recess 7b of the leaf spring 15 described later, the engaging recess 7c of the second stopper member 12 slightly wider than the fixing recess 7b provided subsequent to the fixing recess 7b, and the large diameter portion 7d. A circular middle diameter portion 7f provided on the base member 5 side in the axial direction, a first deformation small diameter portion 7g having a substantially elliptical cross section provided subsequent to the circular medium diameter portion 7f, and the first deformation small diameter A second deformed small-diameter portion 7h having a substantially rectangular cross section provided subsequent to the portion 7g; It has a circular small diameter portion 7i provided in the base member 6 side in the axial direction of the first hinge shaft 7, and a third variant small-diameter portion 7k provided subsequent to the circular small-diameter portion 7i. The first deformation small-diameter portion 7g of the first hinge shaft 7 is fixed as will be described later, as shown in FIGS. 2 to 4 and fitted into a deformation mounting hole 5d provided in the shaft support piece portion 5b of the base member 5. An insertion shaft is rotatably supported in a shaft support hole 14 a provided in the cam member 14, and a circular small diameter portion 7 i provided on the base member 6 side of the first hinge shaft 7 is provided in the first attachment piece portion 6 a of the base member 6. The first hinge shaft 7 is pivotally supported by the base member 5 and the base member 6 by being rotatably inserted into the shaft support hole 6d. The first deformable member 7h and the third deformed small diameter portion 7k of the first hinge shaft 7 are respectively provided with first stopper members on the side where the shaft support pieces 5b and 6b of the base member 5 and the base member 6 pass through. The deformation insertion holes 10a and 10a are inserted into and engaged with the deformation insertion holes 10a and 10a, and are attached to the first hinge shaft 7 by being restricted in rotation by caulking the respective exposed end portions.

  As shown in FIG. 4 in particular, the second hinge shaft 8 is located on the first hinge shaft 7 side and is provided with a circular medium diameter part 8b following the large diameter part 8a. The circular small-diameter portion 8c is provided, and the circular small-diameter portion 8c is further provided with a deformed small-diameter portion 8d. Further, the supporting member 9 is provided with a deformed large-diameter portion 8e following the large-diameter portion 8a. It has been. Then, the circular middle diameter portion 8b is inserted into the mounting hole 7a of the first hinge shaft 7 so as to be pivotally mounted, and the circular small diameter portion 8c is fitted and fixed in the fixing recess 7b. And the exposed end thereof is caulked through the deformation insertion hole 10a of the first stopper member 10 in which the deformation small-diameter portion 8d is housed in the engaging recess 7c. Is fixed so as to be rotatable together with the second hinge shaft 8. The deformed large-diameter portion 8 e of the second hinge shaft 8 is configured to be attached to the substantially central portion of the support member 9.

  The supporting member 9 is a plate-shaped member having a belt-like shape, and is provided with a deformation mounting hole 9a at a substantially central portion thereof, mounting holes 9b and 9b on both sides thereof, and further inside the mounting holes 9b and 9b. Boss portions 9c and 9c are provided, respectively, and the deformed large-diameter portion 8e of the second hinge shaft 8 is inserted into the deformable mounting hole 9a and the exposed end thereof is caulked to rotate together with the second hinge shaft 8. It is attached as follows. And this support member 9 is attached to the 2nd housing | casing 3 shown in FIG. 1 with the attachment screw which is not shown in figure through the attachment holes 9b and 9b. As described above, it is possible to consider an embodiment in which the support member 9 is attached to the first housing 2 side.

  The first rotation control means 11 comes into contact with the first attachment pieces 5a and 6a of the base members 5 and 6 depending on the rotation angle of the first hinge shaft 7 attached to both ends of the first hinge shaft 7. The first hinge shaft 7 is rotatably inserted into the shaft support hole 14a provided in the axial direction of the shaft core portion of the first stopper member 10, 10 and the shaft support piece portion 5b. The first deformation small diameter portion 7g of the first hinge shaft 7 is inserted into the deformation insertion hole 16a provided with the fixed cam member 14 and the first hinge shaft 7 in the axial direction in the axial direction in contact with the fixed cam member 14. For example, the rotary cam member 16 that is engaged and inserted so as to be slidable in the axial direction is wound around the circular middle diameter portion 7f of the first hinge shaft 7 and presses the rotary cam member 16 toward the fixed cam member 14 side. Compression coil sp And an elastic means 17 consisting of ring.

  The first stopper members 10 and 10 have deformation insertion holes 10a and 10a and projecting portions 10b and 10b provided on the outer periphery thereof. When the first hinge shaft 7 is rotated by a predetermined rotation angle, the first stopper members 10 and 10 The rotation angle of the first hinge shaft 7 is regulated by abutting against the one attachment piece 5a, 6a. In the figure, the parts indicated by the instruction symbols 10c and 10c are identification marks. The fixed cam member 14 has a deformed mounting hole 5d provided in the shaft support piece 5b of the base member 5 and a first fixed portion 14b and a second fixed portion 14c to be inserted into the fixed hole 5e on one end side, and the other end. The first cam portion 18 is composed of convex portions 18a and 18a installed opposite to each other in the axial direction, and first concave portions 18b and 18b and second concave portions 18c and 18c provided on both sides of the convex portions 18a and 18a. Is provided. The rotating cam member 16 is provided with a second cam portion 19 including convex portions 19a and 19a and concave portions 19b and 19b on the side facing the first cam portion 18 of the fixed cam member 14. The elastic means 17 is preferably a compression coil spring, and is elastically provided between a flange portion 7m provided between the circular middle diameter portion 7f and the large diameter portion 7d of the first hinge shaft 7 and the rotary cam member 16. Has been.

  The second rotation control means 13 is located in an engagement recess 7c having a stopper portion C and a stopper portion D provided on the first hinge shaft 7, and is attached to the end portion of the second hinge shaft 8. The second hinge shaft 8 is inserted into the second stopper member 12 and the circular insertion hole 15a provided in the axial direction of the axial center portion thereof, and the fixing recess provided on the first hinge shaft 7 following the engaging recess 7c. It is comprised with the leaf | plate spring 15 accommodated and fixed in 7b. As shown in FIG. 13, the leaf spring 15 is a plate-like one curved in one direction, and a raised portion 15b is provided on the second stopper member 12 side with a circular insertion hole 15a interposed therebetween. . As shown in FIG. 12, the second stopper member 12 includes a deformation mounting hole 12a provided in the axial direction of the central portion thereof, and a protruding portion 12b having an abutting surface A and an abutting surface B projecting from the outer periphery thereof. Engaging recesses 12c and 12c are provided with the deformation mounting hole 12a interposed therebetween.

  Then, the deformed mounting hole 12a is inserted through the deformed small diameter portion 8d of the second hinge shaft 8 and the exposed end thereof is caulked with a predetermined caulking torque, whereby the leaf spring 15 is pressed and deformed, and the second hinge shaft 8 is deformed. When a predetermined rotational torque is generated and the engaging recess 12c of the second stopper member 12 falls into the raised portion 15b of the leaf spring 15 due to the rotation angle of the second hinge shaft 8, the second hinge shaft 8 is automatically moved. Suction means 20 is provided for producing a rotating suction function.

  In addition, the 1st cam part 18 provided in the fixed cam member 14 and the 2nd cam part 19 provided in the rotation cam member 16 can each be provided in reverse. Further, the raised portion 15b of the leaf spring 15 and the engaging recess 12c of the second stopper member 12 may be provided in reverse.

  Next, the operation of the biaxial hinge 4 according to the present invention and the video camera 1 using the biaxial hinge 4 will be described.

  In the closed state in which the first housing 2 constituting the device body of the video camera 1 and the second housing 3 constituting the display unit overlap each other, as shown in FIGS. 2, 3 and 6, respectively. The first stopper members 10 and 10 of the first rotation control means 11 of the first hinge shaft 7 are not in contact with the first mounting pieces 5a and 6a of the base members 5 and 6, and The convex portions 19a and 19a of the second cam portion 19 are in pressure contact with the first concave portions 18b and 18b of the first cam portion 18 of the fixed cam member 14, respectively.

  Further, in this closed state, the raised portion 15b provided in the leaf spring 15 and the engaging recess 12c provided in the second stopper member 12 are in a fitted state, and the second housing 3 is in the first housing 2. Against the natural rotation. Further, the contact surface A and the contact surface B of the second stopper member 12 of the second rotation control means 13 are located on either the stopper portion C or the stopper portion D of the engaging recess 7c as shown in FIG. Is not in contact.

  From this closed state, when the second housing 3 that is the display unit is opened to the outside with respect to the first housing 2 that is the device main body of the video camera 1, the second hinge shaft 8 together with the support member 9 is moved to the first hinge. Rotating with the shaft 7, the second housing 3 is opened outward with respect to the first housing 2 with the first hinge shaft 7 as a fulcrum. At this time, the rotating cam member 16 of the first rotation control means 11 initially moves the convex portions 19 a and 19 a of the second cam portion 19 from the first concave portions 18 b and 18 b of the first cam portion 18 of the fixed cam member 14. The resistance when moving to the convex portions 18a, 18a is encountered, but when the predetermined opening angle is exceeded, the convex portions 19a, 19a of the second cam portion 19 of the rotating cam member 16 are moved to the first cam portion 18 of the fixed cam member 14. The second housing 3 is automatically opened with respect to the first housing 2 because the second housing 3 falls to the second concave portions 18c, 18c beyond the convex portions 18a, 18a.

  When the opening angle of the opened second housing 3 reaches 90 °, the first stopper members 10 and 10 of the first rotation control means 11 come into contact with the first mounting pieces 5a and 6a of the base members 5 and 6, respectively. Therefore, as shown in FIG. 1, the second housing 3 is stopped at an opening angle of 90 ° with respect to the first housing 2.

  Next, the second housing 3 opened 90 ° can be returned to the original position by closing with respect to the first housing 2, and at this time, first of the first rotation control means 11. The convex portions 19a and 19a of the second cam portion 19 of the rotating cam member 16 encounter resistance when moving from the second concave portions 18c and 18c of the first cam portion 18 of the fixed cam member 14 to the convex portions 18a and 18a. However, when the predetermined closing angle is exceeded, the convex portions 19a, 19a of the second cam portion 19 of the rotating cam member 16 exceed the convex portions 18a, 18a of the first cam portion 18 of the fixed cam member 14, and the first concave portion 18b, Since it falls to the side of 18b, the 2nd housing | casing 3 is automatically closed with respect to the 1st housing | casing 2, and returns to an original position.

  Next, when the second housing 3 is rotated in the left or right direction from the opening angle of 90 ° with respect to the first housing 2 of the second housing 3, the second housing 3 is moved to the second hinge shaft 8. Can be rotated about the fulcrum, and when it is rotated leftward, as shown in FIG. 2, it rotates until the contact surface A of the second stopper member 12 contacts the stopper C of the engaging recess 7c. The rotation angle is 90 ° at the maximum. Next, when it is rotated to the right, it can be rotated until the contact surface B comes into contact with the stopper portion D of the engaging recess 7c, and the rotation angle in the left direction is 180 °.

  In addition, the biaxial hinge 4 according to the present invention has suction means 20, and by this suction means 20, the second housing 3 is placed on either side of the first housing 2 with the second hinge shaft 8 as a fulcrum. When rotated in the direction, the engagement recess 12c of the second stopper member 12 falls into the raised portion 15b provided in the leaf spring 15 when returning to the original position, and so-called suction operation occurs.

  The biaxial hinge 4 according to the present invention can also be closed with respect to the first housing 2 even when the second housing 3 is rotated 180 °. In this case, the display of the second housing 3 The screen is facing outward.

  As described above in detail, the biaxial hinge according to the present invention is configured as described above. Therefore, the biaxial hinge is not limited to the video camera, and the first casing that constitutes the device main body and the second casing that constitutes the display unit. It is widely used as a camera device such as a digital camera having a body, a portable device such as a mobile phone, a PDA and a Zaurus (registered trademark), a small electronic device such as a notebook computer, a car navigation device, etc. is there.

A Contact surface B Contact surface C Stopper part D Stopper part 1 Video camera 2 First housing (equipment body)
3 Second housing (display unit)
4 biaxial hinge 5 base member 5a first mounting piece 5b shaft supporting piece 5c second mounting piece 6 base member 6a first mounting piece 6b shaft supporting piece 6c second mounting piece 6d shaft supporting hole 7 first 1 hinge shaft 7b fixing recess 7c engaging recess 7g first deformation small diameter portion 8 second hinge shaft 9 support member 10 first stopper member 10a deformation insertion hole 11 first rotation control means 12 second stopper member 13 second rotation control Means 14 Fixed cam member 14a Shaft support hole 15 Leaf spring 15a Circular insertion hole 16 Rotating cam member 16a Deformation insertion hole 17 Elastic means

Claims (7)

  It has a mounting piece and a shaft support piece bent from the mounting piece, and the mounting piece is spaced a predetermined distance from either the first casing or the second casing constituting the electronic device. A pair of base members that are attached to each other, a first hinge shaft formed by cutting that is rotatably supported between the shaft support pieces of each of the base members, and an abbreviation of the first hinge shaft A second hinge shaft rotatably attached to the central portion in an orthogonal state; a support member fixed to the second hinge shaft and attached to one of the first housing and the second housing; and the base member It is provided between at least one shaft support piece and the first hinge shaft, and contacts the attachment piece of the base member according to the rotation angle of the first hinge shaft attached to the end of the first hinge shaft. First contact A first rotation control means for controlling rotation of the first hinge shaft having a stopper member; and provided between the first hinge shaft and the second hinge shaft; And a second rotation control means for controlling the rotation of the second hinge shaft having the attached second stopper member.   The first rotation control means includes a first stopper member that comes into contact with an attachment piece portion of the base member at a rotation angle of the first hinge shaft provided at an end portion of the first hinge shaft, and the shaft support. A fixed cam member in which the first hinge shaft is rotatably inserted into a shaft support hole provided in the axial direction of the shaft core portion, which is engaged with and attached to the one portion, and abutted against the fixed cam member A rotating cam member that is slidable in the axial direction by engaging and inserting the deformed small diameter portion of the first hinge shaft into the deformed insertion hole provided in the axial direction of the axial portion of the first hinge shaft in the state; 2. The biaxial hinge according to claim 1, comprising elastic means that is wound around a first hinge shaft and presses the rotating cam member toward the fixed cam member.   The second rotation control means is located in an engagement recess provided on the first hinge shaft, and is attached to an end of the second hinge shaft, and a shaft portion shaft thereof The second hinge shaft is inserted into a circular insertion hole provided in a direction, and the leaf hinge is housed and fixed in a fixing recess provided on the first hinge shaft following the engaging recess. The biaxial hinge according to any one of claims 1 and 2.   The biaxial hinge according to claim 3, wherein the second rotation control means further includes suction means between the second stopper member and the leaf spring.   The attachment piece part of the said base member is comprised by the 1st attachment piece part and the 2nd attachment piece part formed by bending from the said shaft support piece part, The any one of Claims 1-3 characterized by the above-mentioned. 2. A biaxial hinge according to claim 1.   The said 2nd stopper member was comprised so that the stopper part might contact | abut to the contact surface provided in the end surface of the recessed part for engagement provided in the said 2nd hinge shaft, The any one of Claims 1-4 characterized by the above-mentioned. 2. A biaxial hinge according to claim 1.   An electronic apparatus using the biaxial hinge according to claim 1.

Images