JP3009861B2 - Hinge device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a device that is folded in two when not in use, and is used by opening one member at a predetermined angle when in use, for example, a mobile phone, an electronic organizer, a compact cosmetic, and the like. And a suitable hinge device.

[0002]

2. Description of the Related Art With the development of electronics technology in recent years, various devices such as portable telephones, electronic organizers, etc., having a small size and a liquid crystal display have been developed and put to practical use. These devices are roughly composed of two members that can be opened and closed freely. When not in use, these members are folded and stored compactly, and when used, one member such as a transmission unit and a display is used. A double-page spread type that opens at a predetermined angle is used.

In the double-page spread type device, an opening / closing member and a fixing member (a member on the opening / closing side such as a transmission unit and a display unit are called an opening / closing member, and the other member is called a fixing member).
Is connected using a hinge device, a hinge device is arranged on one side edge of the fixing member to which the opening / closing member is connected, and the connection is performed using the entire side edge as a connection region.

[0004]

However, the conventional hinge device as described above has the following problems. The double-page spread device is often used for portable applications, and there is a constant demand for miniaturization of the device. However, in the above-mentioned conventional hinge device which forms a part of the device, there is a problem that the entire side edge of the fixing member to which the opening / closing member is connected is occupied as a connection region, which contradicts the above demand. It has been desired to reduce the size of the hinge device.

On the other hand, in order to connect the opening / closing member and the fixing member using the hinge device, it is necessary to work in a state where the opening / closing member and the fixing member are combined, and the operation requires a great deal of labor and time. Was.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and a first object of the present invention is to provide a hinge device which can be smoothly and reliably opened and closed and contributes to downsizing of a device. The purpose is to: A second object is to provide a hinge device which has a simple structure and is easy to connect the opening / closing member and the fixing member.

[0007]

In order to achieve the above object, the present invention employs the following constitution. 2. The hinge device according to claim 1, wherein the opening / closing member is connected to one side edge of the fixing member so as to be openable and closable, and one end is fixed to one of the opening / closing member and the fixing member. A camshaft having a cam portion formed around the axis thereof, and a fixing portion to the other member side of the opening / closing member and the fixing member, and elastically grips the cam portion of the camshaft. A cam, the cam portion has a pair of held surfaces formed at symmetric positions with respect to the axis,
The spring has a pair of holding pieces for holding the cam portion in a fixed position by sandwiching the pair of held surfaces, and the camshaft and the spring are fixed wall portions to the other member side. Characterized by being housed in a cylindrical case having

Therefore, in the hinge device of the present invention,
Since the camshaft and the spring are housed in a cylindrical case, miniaturization is realized, and the members constituting the hinge device can be integrally operated, so that the work of connecting the opening / closing member and the fixing member can be performed. Easy to do.

According to a second aspect of the present invention, in the hinge device according to the first aspect, the camshaft has a position fixed to the one member whose one end protrudes outward from one end of the case. It is characterized in that it is movable in the axial direction between a storage position where it is stored in the case.

Therefore, in the hinge device of the present invention,
The camshaft is fixed to the opening / closing member or the fixing member by projecting one end of the camshaft to the outside of the case.
Thus, the connection is made with a simple operation.

According to a third aspect of the present invention, there is provided the hinge device according to the first or second aspect, wherein the camshaft is formed with a through-hole extending in the axial direction.

Therefore, in the hinge device of the present invention,
The wiring of the lead wire can be performed without applying an excessive force to the lead wire wired between the opening / closing member and the fixing member and without impairing the appearance.

A hinge device according to a fourth aspect of the present invention is the hinge device according to any one of the first to third aspects, wherein a support member is fitted inside the other end of the case, and the support member has A pressing spring for urging the camshaft toward the fixed position is supported.

Therefore, in the hinge device of the present invention,
Since the camshaft is urged toward the fixed position by the pressing spring, the camshaft is set to the opening / closing member or the fixed member in a state where the camshaft is stored in the storing position against the urging force of the pressing spring, and the camshaft is set in the storing position side. When the holding of the camshaft is released, the camshaft protrudes to the outside by the pressing spring, whereby the camshaft is fixed to the opening / closing member or the fixing member.

According to a fifth aspect of the present invention, in the hinge device according to the fourth aspect, the supporting member supports the pressing spring and holds a fixing portion of the spring to move the spring toward the other member. It is characterized in that it is configured to be fixed to.

Therefore, in the hinge device of the present invention,
The spring is fixed to the support member, and the spring is fixed to the opening / closing member or the fixing member via the support member.

According to a sixth aspect of the present invention, there is provided the hinge device according to the fourth or fifth aspect, wherein the pressing spring gradually increases or decreases in diameter toward the fixed position. It is characterized in that it is wound so as to be stored in a plane substantially perpendicular to the fixed position direction when compressed against the urging force.

Therefore, according to the hinge device of the present invention, when the pressing spring is compressed against the urging force, the pressing spring can be accommodated in a plane orthogonal to the fixed position direction.

A hinge device according to a seventh aspect is the hinge device according to any one of the fourth to sixth aspects, wherein the support member is provided with a design portion on a side exposed to the outside. I do.

Therefore, in the hinge device of the present invention,
Various shapes and colors can be formed on the design part.

According to an eighth aspect of the present invention, in the hinge device according to any one of the first to seventh aspects, the spring is made of a synthetic resin material.

Therefore, in the hinge device of the present invention,
All members constituting the hinge device can be made of a synthetic resin material.

[0023]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a hinge device according to a first embodiment of the present invention; FIG. The embodiment described here is an example in which the present invention is applied to a connection structure of a housing of a mobile phone.

In FIGS. 14 and 15, reference numeral 1 denotes a portable telephone. This portable telephone 1 has a telephone body 2
The transmitting unit 3 (opening / closing member) is connected to one side edge 4 of the (fixing member) by a hinge device 5. A notch 6 is formed at one end of one side 4 of the telephone body 2 with a center portion as a connecting wall 7 at one end 4 a of the transmitting section 3. A wall 8 is formed.

The connecting wall 7 of the telephone body 2 and the connecting wall 8 of the transmitting section 3 are connected by a hinge device 5. With this configuration, as shown in FIG. 15, the transmitting section 3 can be freely opened and closed between a position A in a closed state with respect to the telephone body 2 and a position C in a use state.

The details of the hinge device 5 will be described below. As shown in FIG. 1 to FIG. 3, the hinge device 5
Cylindrical case 9 having fixed wall 9a to connecting wall 8
To the camshaft 10 having one end 11a fixed to the connecting wall 7 of the telephone body 2 and the cam 12 formed around the axis thereof, and to the connecting wall 8 of the transmitting section 3. And a support 13 fitted in the other end of the case 9. The spring 13 elastically grips the cam portion 12 of the camshaft 10.

As shown in FIGS. 4 and 5, the case 9 is formed in a cylindrical shape and is made of a synthetic resin material.
The inside of the main wall portion 9b is a hollow portion 9c having a rectangular cross section, and a distal end wall portion 9d is formed at one end side of the main wall portion 9b. A circular opening 9e is formed in the distal end wall 9d. A pair of grooves 9f are formed on the outer surface of the main wall 9b in the axial direction of the case 9.
The wall around the groove 9f constitutes the fixed wall 9a for fixing the case 9 to the transmitter 3.

As shown in FIGS. 6 to 8, the camshaft 10 is formed by cutting an outer peripheral surface of a cylindrical rod made of a synthetic resin material or by injection molding, and has an axially intermediate portion. Is a cam portion 12, one end portion 11a of which is a fixed end portion 11, and the other end portion 11b
Is a small diameter portion 17 having a circular cross section. A through hole 15 is formed at the center of the through hole 15 in the axial direction.

As shown in FIG. 9 to FIG.
Is formed by punching and bending a plate made of a spring material, and includes a fixing portion 13a having a U-shaped cross section and a pair of holding pieces 18 extending in parallel from the fixing portion 13a.
And The fixing portion 13a is provided with a protruding portion 19 that protrudes inward from the fixing portion 13a. The holding pieces 18 are bent in a direction approaching each other toward the distal end.

As shown in FIGS. 12 and 13, the support 14 is made of a synthetic resin material and has a cylindrical main wall 20 having a rectangular cross section and a flange 2 formed at one end of the main wall 20.
And 1. A concave portion 22 is formed on the outer peripheral surface of the main wall portion 20, and a pair of engaging concave portions 23 are formed on the outer peripheral surface of the flange portion 21. The spring 13
Are supported by a support 14 as shown in FIG. That is, the spring 13 is fixed to the main wall 20 of the support 14 by engaging the protrusion 19 in the recess 22.

Camshaft 10, spring 13, support 14
Are stored in the case 9. That is, the camshaft 1
Numeral 0 is housed in the case 9 with the fixed end 11 of the one end 11a inserted into the opening 9e of the case 9. The spring 13 is housed in the case 9 with the holding piece 18 in contact with the peripheral surface of the cam portion 12 of the camshaft 10. The support 14 is housed in the case 9 with the small-diameter portion 17 of the camshaft 10 relatively inserted into the main wall portion 20 thereof.
Are engaged with the other end of the case 9.

The cam portion 12 of the camshaft 10 and the spring 13
The details of the holding piece 18 are shown in FIG. As shown in this drawing, the outer peripheral surface of the cam portion 12 is formed such that the inside of the reference circle 24 is cut off to form a held surface 25, and the held surface 2
The outer peripheral surface excluding 5 is a curved surface 28 whose diameter gradually decreases from the start end 26 along the reference circle 24 and has a cross-sectional shape reaching the end 27. The pair of holding pieces 18 are
2 around.

The above-mentioned hinge device 5 allows the telephone body 2
The connection between the telephone and the transmitting unit 3 is performed according to the following procedure.
First, as shown in FIGS. 1 to 3, the camshaft 10, the spring 13, and the support 14 are moved to the other end of the case 9 in the hinge device 5, and the one end 11a of the camshaft 10 is moved to the storage position S. Put on. In this state, the hinge device 5 is inserted into the hole 29 formed in the transmitter 3. In this case, the protrusion 30 formed on the transmitting section 3 is engaged with the groove 9f of the case 9 shown in FIG. This results in Case 9
Is fixed to the transmitting section 3 in a state where it cannot rotate.

Next, the support 14 is pushed toward one end of the case 9, and the rear end of the cam portion 12 is pushed by the tip of the support 14, whereby the one end 11 a of the camshaft 10 is moved toward the one end of the case 9. And is positioned at the fixed position K. Here, one end 11a of the camshaft 10 fits into a hole 31 formed in the telephone body 2 and
Fixed to

In this example, two hinge devices 5 are fixed between the connecting wall 7 of the telephone body 2 and the connecting wall 8 of the transmitter 3 as shown in FIG. The connection between the telephone body 2 and the transmitting section 3 is completed.

The telephone main body 2 is provided with telephone operation buttons (not shown). As shown in FIG. 15, the transmission section 3 has a built-in microphone 32 for transmission. The audio signal captured by the microphone 32 is transmitted to a lead wire 44 shown in FIG.
Is supplied to the telephone main body 2 through the communication unit 3. At this time, the lead wire 44 from the microphone 32 is connected to the transmission unit 3.
And through the through-hole 15 formed in the center of the camshaft 10 of the hinge device 5 into the telephone body 2.

Next, the operation of the hinge device 5 configured as described above will be described. As shown in FIG. 15, when the mobile phone 1 is used, the transmitter 3 is opened to the position C and used. In this case, the positional relationship between the cam portion 12 and the holding piece 18 shown in FIG.
5, the camshaft 10 is held at a fixed position, that is, the transmission unit 3 is held at a position C.

Here, for example, when the holding piece 18 is rotated counterclockwise to close the transmitting section 3, that is, to the position A, the cam section 12 rides on the curved surface 28 at the starting end 26. . At this time, the curved surface 28 is formed so that the outer peripheral surface gradually decreases in diameter from the starting end 26 along the reference circle 24. For example, when the curved surface 28 is at the position B in FIG. The force to move is applied. As a result, even if the transmitting section 3 is at the position B, it is possible to avoid returning to the position A and becoming a half-open state.

According to the hinge device of the present embodiment, the size of the device is reduced, and there is no work such as assembling each part independently. Accordingly, the telephone body 2 and the transmitting section 3 can be easily connected only by pressing the camshaft 10. Further, the wiring of the lead wire 44 can be performed without applying excessive force to the lead wire 44 wired between the telephone body 2 and the transmitting section 3 and without deteriorating the appearance.

Next, a hinge device according to a second embodiment of the present invention will be described with reference to FIGS. The embodiment described here is different from the first embodiment in that the camshaft is urged by a pressing spring so that one end always projects outside the case.

That is, in this embodiment, as shown in FIG. 19 and FIG.
Is a hole 33 having a diameter larger than that of the small diameter portion 17 of the camshaft 10, and the rear end wall 3 is formed on the flange portion 21 side.
4 are formed. The rear end wall portion 34 is formed with a hole 35 through which a wiring lead wire or the like is inserted. FIG.
As shown in FIG. 8, a pressing spring 36 is inserted into the hole 33. One end of the hole 29 of the transmitting section 3 is closed. Other points are the same as those of the above embodiment.

Based on this configuration, the camshaft 1
Reference numeral 0 denotes a state in which the pressing spring 36 is constantly biased toward one end of the case 9. In order to connect the telephone main body 2 and the transmitting section 3 using the hinge device 5, the one end 11a of the camshaft 10 is moved to the storage position S in the case 9 using an appropriate jig. In this state, the case 9 is fixed to the transmitter 3. When the jig is released, the camshaft 10 is automatically protruded toward the connection wall 7 of the telephone body 2 by the urging force of the pressing spring 36, and the connection is made.

Therefore, according to the hinge device of the present embodiment, a hinge device that is small and easy to assemble can be obtained, and the connection between the telephone body 2 and the transmitting section 3 can be performed more easily. In the second embodiment of the present invention, one end of the hole 29 of the transmitting section 3 is closed. However, the present invention is not limited to this, and the through hole may be used.

Next, a third embodiment of the hinge device of the present invention will be described with reference to FIG. The embodiment described here is different from the second embodiment in that a design surface 39 (design portion) is formed on the support member 16 of the hinge device 5. That is, in this embodiment, the design surface 39 is provided on the side exposed to the outside of the support member 16.
Are formed. The other points are the same as the second embodiment.

According to this configuration, a hinge device that is small and easy to assemble can be obtained as in the second embodiment. Further, the design surface 39 prevents the hinge device, which is a functional component, from being seen by the user of the mobile phone, and the design surface 39 has various shapes and colors to improve the appearance. On the other hand, since the support member 16 is configured as a separate member from the transmitter 3, the transmitter 3 does not need to be subjected to design processing, thereby reducing costs.

Therefore, according to the hinge device of the present embodiment, it is possible to obtain not only the effect of being inexpensive and easy to assemble, but also the effect of improving the appearance. Note that the second
In the above embodiment, the design surface is formed on the support member. However, the present invention is not limited to this configuration. For example, the design surface may be formed of two parts, a design member having a design surface and a support member.

A fourth embodiment of the hinge device according to the present invention will be described with reference to FIGS. The embodiment described here is different from the first embodiment in that the camshaft and the spring are housed only in the case without using the support, and that the spring is constituted by two members. .

That is, in this embodiment, the spring 45
As shown in FIGS. 23 and 24, a ridge 46 is formed on a plate made of a spring material, and the ridge 46 is curved in an arc in the length direction. As shown in FIGS. 25 to 27, the case 47 is formed in a tubular shape, and the inside of the main wall portion 9b is a hollow portion 9c having an oval cross section. A tip wall 9d is formed on one end, and a pair of bent walls 47a projecting flush with the main wall 9b is formed on the other end. An arc-shaped recess 47b is formed at the tip of the bent wall 47a, and a circular opening 9e is formed at the tip wall 9d.
Other points are the same as those of the first embodiment.

Hereinafter, a method of assembling the hinge device 5 will be described with reference to FIG. First, the camshaft 10 and the spring 45 are sequentially inserted into the hollow portion 9c from the other end of the case 47. Next, the pair of bent wall portions 47a are bent in directions approaching each other. At this time, the two springs 45 are arranged so as to abut and clamp the cam portion 12 of the camshaft 10, respectively. The bent wall portion 47a locks the movement of the camshaft 10 in the axial direction, and the arc-shaped concave portion 47b formed at the tip supports the fixed end portion 11 of the camshaft 10. Thus, the assembly of the hinge device 5 is completed.

According to the hinge device of the present embodiment, the same operation and effect as those of the first embodiment can be obtained, and in addition, the number of parts is reduced, so that the cost is further reduced. And miniaturization can be realized. Further, since the holding force by the spring 45 is further increased, the transmitting section 3 can be more reliably held at the fixed position, and
The transmission unit 3 can return to the closed state at higher speed.

A fifth embodiment of the hinge device according to the present invention will be described with reference to FIG. This embodiment differs from the fourth embodiment in that the camshaft is urged by a pressing spring so that one end always projects outside the case.

That is, in this embodiment, the pressing spring 36 is fitted on the small diameter portion 17 of the camshaft 10, one end of which is connected to the camshaft 10, and the other end of which is the tip wall 9 of the case 47.
It is arranged in the case 47 so as to abut on d. The other points are the same as in the fourth embodiment.

Based on this configuration, the camshaft 10 is always urged toward one end of the case 47 by the pressing spring 36. The connection between the telephone main body 2 and the transmitting section 3 using the hinge device 5 can be performed by the same operation as in the second embodiment of the present invention.

Therefore, according to the hinge device of the present embodiment, in addition to the same effects as those of the above-described fourth embodiment of the present invention, the connection between the telephone main body 2 and the transmitting section 3 can be performed more easily. be able to.

A sixth embodiment of the hinge device according to the present invention will be described with reference to FIGS. The difference between the embodiment described here and the first embodiment is the configuration of the spring. That is, in this embodiment, as shown in FIGS. 30 and 31, the spring 48 is obtained by bending a plate made of a synthetic resin material into an arc shape. FIG.
At this time, the two springs 48 are opposed to each other so that the cam portions 12 of the cam shaft 10
Is pressed and arranged.

According to this configuration, the same operation and effect as those of the first embodiment of the present invention can be obtained.
Since the structure of the spring 48 is simple, the size and weight can be further reduced, and the manufacturing can be facilitated, so that the cost can be reduced. Further, since the holding force of the spring 48 is further increased, the transmitting section 3 can be more reliably held at the fixed position, and the transmitting section 3 can return to the closed state at a higher speed. On the other hand, when the spring 48 is made of a synthetic resin material, the hinge device 5 can be entirely made of a member made of a synthetic resin material.

Next, a seventh embodiment of the hinge device according to the present invention will be described with reference to FIGS. The fifth embodiment differs from the fifth embodiment in the configuration of a case, a camshaft, a spring, and a pressing spring.

That is, in this embodiment, case 5
Numeral 0 is non-rotatably fitted into the hole 29 of the transmitting section 3, and is formed in a cylindrical shape as shown in FIG. 33, and the inside of the main wall portion 50a has a substantially rectangular shape in cross section. A hollow portion 50b is formed. A tip wall portion 50c is formed on one end side of the main wall portion 50a, and a pair of bent portions are formed on the other end side so as to be flush with the main wall portion 50a and approach each other. Is formed. A circular opening 50e is formed in the tip wall 50c. A cutout portion 50g is formed in the pair of opposed side wall portions 50f, and an engagement portion 50h is formed at one longitudinal end of the cutout portion 50g.

The camshaft 53 has one end 1 in the axial direction.
1 a is a fixed end 11, and the other end is a cam 12. Then, a through hole 15 is formed in the center portion in the axial direction. On the other end side of the cam portion 12,
A guide member 54 is mounted.

As shown in FIGS. 34 and 35, the guide member 54 has a shaft portion 55 that is rotatably fitted around the axis in the through hole 15 of the camshaft 53, and a guide member 54 at the other end of the shaft portion 55. And the formed engaging portion 56. The engaging portion 56 includes an engaging wall portion 57 protruding from the engaging portion 56 in a direction perpendicular to the axis, and a pair of notches 58 in a direction perpendicular to the direction in which the engaging wall portion 57 protrudes. Is formed,
The spring 52 is held in the missing portion 58.

As shown in FIGS. 36 and 37, the spring 5
2 is formed by stamping and bending a plate made of a spring material, and has a rectangular holding wall portion 59 in a plan view and a pair extending in parallel with the holding wall portion 59 with a gap 60 therebetween. And a holding piece 61 is provided, and three pieces of the holding piece 61 are mounted in a state of being stacked.

The holding pieces 61 are bent so as to approach each other in the direction of the distal end and to be displaced in a direction away from each other near the distal end. Retaining wall 5
9 is formed with an engaging wall 62 projecting from the holding wall 59 so as to be separated from each other in a direction orthogonal to the axis.

The pressing spring 51 urges the camshaft 53 in the direction of the fixed position (left side in the figure) via the guide member 54 and the spring 52. As shown in FIG.
It is wound so that the diameter gradually increases toward the fixed position. The pressing spring 51
Is housed in an imaginary plane formed in a direction orthogonal to the fixed position direction when compressed against the urging force of the pressing spring 51.

Hereinafter, a method of assembling the hinge device 5 having the above configuration will be described with reference to FIG. First, the cam shaft 53, the guide member 54, the spring 52, and the pressing spring 51 are sequentially inserted into the hollow portion 50b from the other end of the case 50. At this time, the shaft 55 of the guide member 54 is
3 so as to be rotatable around the axis.

The spring 52 is held in the notch 58 of the guide member 54, and the holding piece 61 is in contact with the peripheral surface of the cam portion 12 of the camshaft 53.
0. On the other hand, the engagement wall 5 of the guide member 54
7 and the engaging wall portion 62 of the spring 52 are urged by the pressing spring 51 to engage with the engaging portion 50h formed on the side wall portion 50f of the case 50. As a result, these guide members 54
The spring 52 and the spring 52 are non-rotatably supported by the case 50.

Next, the bent walls 50d of the case 50 are bent in directions approaching each other. Thereby, the camshaft 53 is stopped from moving in the axial direction. Thus, the assembly of the hinge device 5 is completed.

According to the hinge device of the present embodiment, the telephone body 2 is operated in the same operation procedure as in the second embodiment.
And the transmission unit 3 can be connected. At this time, the pressing spring 51
When the hinge device is compressed against the urging force, it is bent so as to be accommodated in an imaginary surface in a direction orthogonal to the axis, so that the length of the hinge device in this direction can be shortened. Is realized. Further, since the holding piece 61 of the spring 52 is displaced and bent in a direction away from each other near the tip, the holding piece 61 is attached to the camshaft 53 at the time of assembly.
The workability at the time of being held by the cam portion 12 is improved.

Next, an eighth embodiment of the hinge device of the present invention will be described with reference to FIG. The embodiment described here is different from the seventh embodiment in that a support is provided at the other end of the case.

That is, the other end of the case 50 is
3 is arranged to contact the spring 52. The support 63 includes a contact wall 64 that contacts the spring 52 and an end wall 65 formed on the other end side of the contact wall 64. A plurality of locking walls 66 projecting from the outer surface of the contact wall 64 are formed on the outer surface.

The locking wall 66 is an inclined surface which is separated from the outer surface as it goes from the outer surface to the other end as a starting point. The end point of the locking wall 66 is defined by the diameter of the transmitting wall 3. It is formed to have a slightly larger diameter than the hole 29. The end wall portion 65 is provided with a large-diameter portion 6 formed outside the hole 29.
7 and engages with a step 68 formed between the hole 29 and the large-diameter portion 67. In addition, the end wall 6
A design surface 69 is formed on the side exposed to the outside of 5.

The operation of connecting the telephone main body 2 and the transmitting section 3 by the hinge device 5 having the above configuration is performed in the following procedure. First, in the hinge device 5, the camshaft 5
3. The guide member 54, the spring 52, and the support body 63 are
0, and the one end 11a of the camshaft 53 is placed at the storage position S. In this state, the hinge device 5 is inserted into the hole 29 of the transmitter 3. As a result, the case 50 is fixed to the transmitting section 3 in a state where it cannot rotate.

Next, the support 63 is pushed toward one end of the case 50, and the rear end of the spring 52 is pushed by the tip of the support 63, whereby the one end 11 a of the cam shaft 53 is moved from one end of the case 50. The protruding portion is positioned at the fixing position K. At this time, the diameter of the locking wall 66 of the support 63 is set to be larger than that of the hole 29, but the distance from the outer surface of the contact wall 64 toward the other end starts from the outer surface of the contact wall 64. The case 50
Is pressed without any trouble in the press-fit state.

When the pressing proceeds, the end wall 65 is fitted to the large-diameter portion 37 and engages with the step 68. As a result, the support 63 is fixed to the transmitting section 3. Here, one end 11 a of the camshaft 53 is fitted into a hole 31 formed in the telephone body 2 and fixed to the telephone body 2.
Thus, the operation of connecting the telephone main body 2 and the transmitting section 3 is completed.

According to the hinge device of this embodiment, the same operation and effect as those of the seventh embodiment can be obtained. The appearance is improved by making various shapes and colors invisible to the eyes of the user.

In the above-described embodiment, the shape of the cam portion 12 of the camshaft 10 is shown in FIG. 16, but as shown in FIG. If the dimensional difference 37 is made larger, it is possible to return the holding piece 18 to the position A, that is, return to the closed state of the transmitting section 3 at a high speed.

In the above embodiment, the spring 1
3 is constituted by one sheet, but the present invention is not limited to this. For example, two sheets may be stacked. In this case, the force with which the cam portion 12 of the camshaft 10 is clamped by the spring 13 increases, so that the transmission portion 3 can return to the closed state at higher speed.

In the above embodiment, the transmitting section 3 is composed of one component. However, the present invention is not limited to this configuration. Alternatively, the upper and lower two parts may be sandwiched by the upper and lower parts, the upper and lower parts may be integrally fastened by bolts, and then the telephone body 2 may be connected.

[0078]

As described above, according to the hinge device of the first aspect, the camshaft and the spring whose one end is fixed to one of the opening and closing member and the fixing member are housed in the case. The case has a fixed wall portion fixed to the other member side of the opening / closing member and the fixing member.

As a result, simplification of the assembling work and downsizing of the device are realized, and the members constituting the hinge device can be integrally operated, so that the labor required for connecting the opening / closing member and the fixing member is greatly reduced. Can be reduced. Therefore, there is an excellent effect that the time required for the connection work is reduced.

According to the hinge device of the second aspect, one end of the cam shaft is movable between a fixed position protruding from one end of the case and a storage position stored in the case. . As a result, an excellent effect that the connection work is further simplified is achieved.

According to the hinge device of the third aspect, a through hole is formed at the center of the camshaft. Thus, the lead wires can be wired without applying an excessive force to the lead wires wired between the opening / closing member and the fixing member, and without impairing the appearance.

According to the hinge device of the fourth aspect, the supporting member is fitted inside the other end of the case, and the supporting member supports the pressing spring for urging the cam shaft in the fixed position direction. Configuration. As a result, an excellent effect that the connecting operation is further simplified is achieved.

According to the hinge device of the fifth aspect, the supporting member supports the pressing spring and holds the fixing portion of the spring to fix the spring to the other member.
As a result, the configuration is simplified, and the size can be further reduced.

According to the hinge device of the sixth aspect, the pressing spring gradually increases in diameter toward the fixed position.
Alternatively, it is configured to be wound so as to be reduced in diameter and housed in a plane substantially perpendicular to the fixed position direction when compressed against the urging force of the pressing spring. As a result, a hinge device that is shorter in the direction of the fixed position is made possible, and an excellent effect that further downsizing can be achieved is achieved.

According to the hinge device of the seventh aspect, a design member having a design portion exposed to the outside is mounted on the support member. Thus, by performing various processes on the design portion, an excellent effect of improving the appearance can be obtained, and a complicated appearance design can be realized by a simple member, so that the assembling work is easy and inexpensive. And a beautiful product can be obtained.

According to the hinge device of the eighth aspect, the spring is made of a synthetic resin material. As a result, the hinge device can be formed entirely of a member made of a synthetic resin material.
An excellent effect is achieved that the cost can be reduced and the recycling process is simplified.

[Brief description of the drawings]

FIG. 1 is a view showing a first embodiment of the present invention, and is a cross-sectional view in which a telephone main body and a transmitting section are connected by a hinge device.

FIG. 2 is a view as viewed in the direction of arrow A in FIG.

FIG. 3 is a sectional view taken along the line 2-2 in FIG.

FIG. 4 is a sectional view of a case constituting the hinge device of the present invention.

FIG. 5 is a right side view of the case.

FIG. 6 is a front view of a camshaft constituting the hinge device of the present invention.

FIG. 7 is a left side view of the camshaft.

FIG. 8 is a sectional view taken along line C-C of FIG.

FIG. 9 is a front view of a spring constituting the hinge device of the present invention.

FIG. 10 is a plan view of a spring.

FIG. 11 is a right side view of the spring.

FIG. 12 is a front view of a support constituting the hinge device according to the first embodiment of the present invention.

FIG. 13 is a left side view of the support.

FIG. 14 is a plan view showing an example of a mobile phone to which the hinge device according to the first embodiment of the present invention is applied.

FIG. 15 is a front view of a mobile phone.

FIG. 16 is a cross-sectional view showing a first cam portion outer shape in the hinge device of the present invention, and is an explanatory diagram showing a positional relationship between the cam portion and a spring.

FIG. 17 is a cross-sectional view showing a second cam portion outer shape in the hinge device of the present invention, and is an explanatory diagram showing a positional relationship between the cam portion and a spring.

FIG. 18 is a view showing a second embodiment of the present invention, and is a cross-sectional view in which a telephone main body and a transmitting section are connected by a hinge device.

FIG. 19 is a front view of a support member included in the hinge device according to the second embodiment of the present invention.

FIG. 20 is a left side view of the support member.

FIG. 21 is a view showing a third embodiment of the present invention, and is a cross-sectional view in which a telephone body and a transmitting section are connected by a hinge device.

FIG. 22 is a view showing a fourth embodiment of the present invention, and is a cross-sectional view in which a telephone main body and a transmitting section are connected by a hinge device.

FIG. 23 is a plan view of a spring included in a hinge device according to a fourth embodiment of the present invention.

FIG. 24 is a front view of a spring.

FIG. 25 is a sectional view of a case forming a hinge device according to a fourth embodiment of the present invention.

FIG. 26 is a plan view of a case.

FIG. 27 is a left side view of the case.

FIG. 28 is a view showing a fifth embodiment of the present invention, and is a cross-sectional view in which a telephone main body and a transmitting section are connected by a hinge device.

FIG. 29 is a view showing a sixth embodiment of the present invention, and is a cross-sectional view in which a telephone main body and a transmitting section are connected by a hinge device.

FIG. 30 is a plan view of a spring included in the hinge device according to the sixth embodiment of the present invention.

FIG. 31 is a front view of a spring.

FIG. 32 is a view showing a seventh embodiment of the present invention, and is a cross-sectional view in which a telephone main body and a transmitting section are connected by a hinge device.

FIG. 33 is a front view of a case constituting a hinge device according to a seventh embodiment of the present invention.

FIG. 34 is a plan view of a guide member included in a hinge device according to a seventh embodiment of the present invention.

FIG. 35 is a front view of a guide member.

FIG. 36 is a plan view of a spring included in a hinge device according to a seventh embodiment of the present invention.

FIG. 37 is a bottom view of the spring.

FIG. 38 is a view showing an eighth embodiment of the present invention, and is a cross-sectional view in which a telephone main body and a transmitting section are connected by a hinge device.

[Explanation of symbols]

 2 Telephone body (fixed member) 3 Speaking part (opening / closing member) 4, 4a Side edge 5 Hinge device 9, 47, 50 Case 9a Fixed wall 10, 53 Cam shaft 11 Fixed end 11a One end 12 Cam 13, 45, 48, 52 Spring 13a Fixed portion 15 Through hole 16 Support member 18, 61 Holding piece 25 Held surface 36, 51 Press spring 39, 69 Design surface (design portion) K Fixed position S Storage position

Claims (8)

(57) [Claims] 1. A hinge device for connecting an opening and closing member to one side edge of a fixing member so as to be openable and closable, wherein one end portion is a fixed end portion to one of the opening and closing member and the fixing member. A cam shaft having a cam portion formed around the axis thereof; and a spring having a fixing portion to the other member side of the opening and closing member and the fixing member and elastically gripping a cam portion of the cam shaft. The cam portion has a pair of held surfaces formed at symmetrical positions with respect to the axis, and the spring sandwiches the pair of held surfaces to hold the cam portion at a fixed position. it has a holding piece, the camshaft and the spring, the housed the other fixed wall portion in the cylindrical case having to member side, the said casing, the fixed end portion of the camshaft Insert
A hinge device, wherein an opening for receiving the hinge is formed . 2. The hinge device according to claim 1, wherein the camshaft is fixed to a position where the one end protrudes outward from one end of the case to the one member, and is housed in the case. A hinge device that is movable in the axial direction between the hinge device and the position. 3. The hinge device according to claim 1, wherein the camshaft is formed with a through-hole extending in the axial direction. 4. The hinge device according to claim 1, wherein a support member is fitted into the case at the other end side, and the cam shaft is fixed to the support member at the fixed position. A hinge device, wherein a pressing spring biasing in a direction is supported. 5. The hinge device according to claim 4, wherein the support member supports the pressing spring, holds a fixing portion of the spring, and fixes the spring to the other member side. A hinge device characterized by the above-mentioned. 6. The hinge device according to claim 4, wherein the pressing spring gradually expands or contracts in diameter toward the fixed position, and compresses against a biasing force of the pressing spring. The hinge device is wound so as to be stored in a plane substantially perpendicular to the fixed position direction when the hinge device is turned. 7. The hinge device according to claim 4, wherein a design portion is provided on a side of the support member that is exposed to the outside. 8. The hinge device according to claim 1, wherein the spring is made of a synthetic resin material.