CN101608660A - Hinge means - Google Patents

Abstract

The present invention relates to a kind of hinge means that is used for the portable set of open and close types such as mobile phone, provide a kind of opening operation of casing simply to carry out and can obtain the also good hinge means of enough big open angle, durability.Have housing, metal first cam member and second cam member, plastic retaining member, spring component and axis body; Housing is installed on a side of casing; First cam member is installed on the opposing party of casing; The engagement lugs cam engagement of second cam member and first cam member can relatively rotate with first cam member, is forming the engagement ramp portion that each engagement lugs is carried out cam engagement and slip respectively with these engagement lugs position in opposite directions; The profile of retaining member forms greatlyyer than second cam member, and the inboard of second cam member in housing be by can accommodating at the state that endwisely slips and can not gently be pressed into rotationally, with the chimeric and unitary rotation of second cam member; Axis body connects each member it is carried out the axle supporting.

Description

Hinge means

Technical field

The present invention relates to a kind of hinge means that is used for the portable set of open and close types such as mobile phone.

Background technique

In folding mobile phone, as connect the hinge means that opens and closes casing (being subjected to words portion) rotationally with respect to main body casing (sending words portion), developed such hinge, this hinge is that benchmark court opens direction or closing direction effect rotatory force with predetermined open position (overturn point Off リ ッ プ Port ィ Application ト), makes the switching casing automatically open, close.

For example the main body to clamshell phone is such as shown in figure 25 with the hinge member that lid combines shown in the patent documentation 1, have end cam 90 that is inserted in the housing that is installed on main body and the portion that follows 91 that is contacted with it, when beginning with hand the lid of having closed opened, end cam 90 1 edges steep escarpmetnt portion 93 will follow portion 91 and lift rotation on one side, in the position of having opened 30 °, follow portion 91 and cross protuberance 94, advance towards gently sloping surface portion 95, automatically descend by pressing device, up to the open stop position (having opened 150 ° position) that arrives recess 92, thus end cam 90 is applied rotatory force, automatically open lid.

In addition, hinge means shown in the patent documentation 2 has stationary cam portion and is crimped on the cam slider of this cam part, when mobile phone send words portion be subjected to words portion relative when being split into angle and being 25 °, cross first rake and open towards the slide protuberance of stressed above-mentioned cam slider of above-mentioned stationary cam portion side, when being near 45 °, automatically be opened to 150 ° by the elastic force of pressure spring.

[patent documentation 1] Japanese kokai publication hei 11-98228 communique

[patent documentation 2] TOHKEMY 2001-355371 communique

Summary of the invention

Along with the variation of mobile phone, wish also can carry out opening operation simply and open the big as far as possible such demand of stop angle also constantly increasing with singlehanded.Yet, overturn point is located at 30 ° angular orientation though be used for the hinge member of above-mentioned patent documentation 1 clamshell phone, but in this hinge member, in order further to reduce the position angle of overturn point, need make above-mentioned inclined plane part 93 be more anxious angle, in this occasion, follow the load increase that portion 91 climbs up the inclined plane part 93 of this steep urgency, there is the problem of the operability decline of mobile phone.In addition,, further enlarge this angle and above-mentionedly similarly need to make the angle of inclination of above-mentioned inclined plane part 93 to be the more anxious gradient, exist operating disadvantageous problem though the open stop position of above-mentioned hinge member is 150 °.

In addition,, become narrower from 25 ° angle, need make above-mentioned first rake be more anxious angle, with the above-mentioned problem that has the operability variation equally in order to make overturn point for the mobile phone of the hinge means that uses patent documentation 2.In addition, open angle also is 150 °, in order further to enlarge this angle, exists and above-mentioned same problem, difficulty.

In addition, hinge means shown in the general above-mentioned patent documentation is to utilize the rebounding force of spring automatically to open the structure of casing, so at above-mentioned overturn point periphery pressure spring significantly, its bounce-back is also strong.Such hinge means cam that is bonded with each other forcefully is so cam member and the barrel member etc. of accommodating cam use metal to make mostly.For this reason, the relative rotation impetus of hinge means is strong, and parts rock and the noise that produces mutually sometimes, become the main cause that the operator is produced not harmony sense.

The present invention makes in view of the above problems, its purpose is to provide a kind of hinge means, and this hinge means can simply carry out the opening operation of casing and can obtain enough big open angle, simultaneously, can positively keep the closed condition and the open state of casing, durability is also good.

In order to solve above technical task, the present invention is such shown in Figure 11, Figure 26 etc., hinge means connects the main body casing and switching casing of portable set rotationally, wherein: have housing 12, metal first cam member 106,206, metal second cam member 108,208, plastic retaining member 109, spring component 10,11, reach axis body 116; This housing is installed on a side of above-mentioned casing, is the tubular of an end closure; This first cam member is located at the end outside of above-mentioned housing, is installed in the opposing party of above-mentioned casing, forms engagement lugs respectively at the two positions of base portion; This second cam member can axially be free to slide and can not be housed in the above-mentioned housing freely to rotate, carry out cam engagement with the engagement lugs of above-mentioned first cam member, can relatively rotate with above-mentioned first cam member, forming the engagement ramp portion that each engagement lugs is carried out cam engagement and slip respectively with these engagement lugs position in opposite directions, forming first inclined plane part until the rising at top, second inclined plane part that descends obliquely from above-mentioned top respectively in each engagement ramp portion; The profile of this retaining member forms greatlyyer than above-mentioned second cam member, by can be in the inboard of above-mentioned second cam member in the state that endwisely slips and can not gently be pressed into rotationally is housed in above-mentioned housing, with the chimeric and unitary rotation of above-mentioned second cam member; This spring component is located in the above-mentioned housing, in direction of engagement to above-mentioned first cam member and the above-mentioned second cam member application of force; This axis body connects the bottom of above-mentioned housing, above-mentioned spring component, above-mentioned retaining member, above-mentioned second cam member and above-mentioned first cam member, connects each member and it is carried out the axle supporting.

Hinge means of the present invention like that, connects the main body casing and switching casing of portable set rotationally shown in Figure 11, Figure 26 etc.; Wherein: have housing 12, metal first cam member 106,206, metal second cam member 108,208, plastic stopper element 107,107a, spring component 10,11, reach axis body 116; This housing is installed on a side of above-mentioned casing, is the tubular of an end closure; This first cam member is located at the end outside of above-mentioned housing, is installed in the opposing party of above-mentioned casing, forms engagement lugs respectively at the two positions of base portion; This second cam member can axially be free to slide and can not be housed in the above-mentioned housing freely to rotate, carry out cam engagement with the engagement lugs of above-mentioned first cam member, can relatively rotate with above-mentioned first cam member, forming the engagement ramp portion that each engagement lugs is carried out cam engagement and slip respectively with these engagement lugs position in opposite directions, forming first inclined plane part until the rising at top, second inclined plane part that descends obliquely from above-mentioned top respectively in each engagement ramp portion; This stopper element is located at the back of above-mentioned first cam member, with the chimeric and unitary rotation of this first cam member, is installed on the opposing party of above-mentioned casing with first cam member; This spring component is located in the above-mentioned housing, in direction of engagement to above-mentioned first cam member and the above-mentioned second cam member application of force; This axis body connects the bottom of above-mentioned housing, above-mentioned spring component, above-mentioned second cam member, above-mentioned first cam member, reaches above-mentioned stopper element, connects each member and it is carried out the axle supporting.

Hinge means of the present invention like that, connects the main body casing and switching casing of portable set rotationally shown in Figure 26 etc.; Wherein: have housing 12, metal first cam member 206, metal second cam member 208, spring component 10,11, reach axis body 116; This housing is installed on a side of above-mentioned casing, is the tubular of an end closure; This first cam member is located at the outside, end of above-mentioned housing, is installed in the opposing party of above-mentioned casing, in the location formation outer engagement protuberance 222 of base portion, engagement lugs 223 in forming with its opposing party position in opposite directions; This second cam member can axially be free to slide and can not be housed in the above-mentioned housing freely to rotate, can relatively rotate with above-mentioned first cam member, form the outer engagement inclined plane part 234 that the outer engagement protuberance of above-mentioned first cam member carries out cam engagement and slip at the ring-type base portion by the circle concentric with it, the interior engagement lugs that forms above-mentioned first cam member in the inboard of this outer engagement inclined plane part is carried out the interior engagement ramp portion 236 of cam engagement and slip, in above-mentioned each engagement ramp portion 234,236 form first inclined plane part until the rising at top respectively, second inclined plane part that descends obliquely from above-mentioned top; This spring component is located in the above-mentioned housing, in direction of engagement to above-mentioned first cam member and the above-mentioned second cam member application of force; This axis body connects the bottom of above-mentioned housing, above-mentioned spring component, above-mentioned second cam member and above-mentioned first cam member, connects each member and it is carried out the axle supporting.

Hinge means of the present invention like that, connects the main body casing and switching casing of portable set rotationally shown in Figure 26 etc.; Wherein: have housing 12, metal first cam member 206, metal second cam member 208, plastic retaining member 109, spring component 10,11, reach axis body 116; This housing is installed on a side of above-mentioned casing, is the tubular of an end closure; This first cam member is located at the outside, end of above-mentioned housing, is installed in the opposing party of above-mentioned casing, in the location formation outer engagement protuberance 222 of base portion, engagement lugs 223 in forming with its opposing party position in opposite directions; This second cam member can axially be free to slide and can not be housed in the above-mentioned housing freely to rotate, can relatively rotate with above-mentioned first cam member, form the outer engagement inclined plane part 234 that the outer engagement protuberance of above-mentioned first cam member carries out cam engagement and slip at the ring-type base portion by the circle concentric with it, the interior engagement lugs that forms above-mentioned first cam member in the inboard of this outer engagement inclined plane part is carried out the interior engagement ramp portion 236 of cam engagement and slip, in above-mentioned each engagement ramp portion 234,236 form first inclined plane part until the rising at top respectively, second inclined plane part that descends obliquely from above-mentioned top; The profile of this retaining member forms greatlyyer than above-mentioned second cam member, by can be in the inboard of above-mentioned second cam member in the state that endwisely slips and can not gently be pressed into rotationally is housed in above-mentioned housing, with the chimeric and unitary rotation of above-mentioned second cam member; This spring component is located in the above-mentioned housing, in direction of engagement to above-mentioned first cam member and the above-mentioned second cam member application of force; This axis body connects the bottom of above-mentioned housing, above-mentioned spring component, above-mentioned retaining member, above-mentioned second cam member and above-mentioned first cam member, connects each member and it is carried out the axle supporting.

Hinge means of the present invention like that, connects the main body casing and switching casing of portable set rotationally shown in Figure 11 etc.; Wherein: have housing 12, metal first cam member 106, metal second cam member 108, plastic retaining member 109, spring component 10,11, reach axis body 116; This housing is installed on a side of above-mentioned casing, is the tubular of an end closure; This first cam member is located at the outside, end of above-mentioned housing, be installed in the opposing party of above-mentioned casing, two positions at base portion forms engagement lugs respectively, nearby form the wall portion vertical in side's side of the front end of each engagement lugs from base portion to this front end, at the inclined plane part of the opposing party's side formation from above-mentioned front end to above-mentioned base portion with sense of rotation; This second cam member can axially be free to slide and can not be housed in the above-mentioned housing freely to rotate, carry out cam engagement with the engagement lugs of above-mentioned first cam member, can relatively rotate with above-mentioned first cam member, form the engagement ramp portion that each engagement lugs is carried out cam engagement and slip respectively with these engagement lugs position in opposite directions, forming the wall portion that constitutes perpendicular to sense of rotation ground from base portion in each engagement ramp portion respectively, from the upper end portion of this wall portion until first inclined plane part of the rising at top, second inclined plane part that descends obliquely from above-mentioned top; The profile of this retaining member forms greatlyyer than above-mentioned second cam member, by can be in the inboard of above-mentioned second cam member in the state that endwisely slips and can not gently be pressed into rotationally is housed in above-mentioned housing, with the chimeric and unitary rotation of above-mentioned second cam member; This spring component is located in the above-mentioned housing, in direction of engagement to above-mentioned first cam member and the above-mentioned second cam member application of force; This axis body connects the bottom of above-mentioned housing, above-mentioned spring component, above-mentioned retaining member, above-mentioned second cam member and above-mentioned first cam member, connects each member and it is carried out the axle supporting.

Hinge means of the present invention is provided with plastic stopper element 107,207 at the back of carrying out above-mentioned first cam member 106,206 of cam engagement with above-mentioned second cam member 108,208, chimeric and the unitary rotation of this stopper element and this first cam member is installed on the opposing party of above-mentioned casing with first cam member.

Hinge means of the present invention is the formation that is made of metal above-mentioned housing 12.

Hinge means of the present invention is guaranteed the formation of the energising between each member for these housings 12 and axis body 116 are carried out surface treatment by the low metal of resistance respectively.

As described above, according to hinge means of the present invention, employing has metal first cam member, metal second cam member, reaches the formation of plastic retaining member; The engagement lugs of this second cam member and this first cam member is carried out cam engagement, can relatively rotate with first cam member; The profile of this retaining member forms greatlyyer than second cam member, is housed in the housing by the state that gently is pressed into, with the chimeric and unitary rotation of second cam member; So the opening operation that opens and closes casing can be carried out simply, can carry out brisk operation, simultaneously, rocking that member is mutual is prevented, even for by the impact of overturn point by causing, also do not cough up the different sounds such as coughing up the noise of rattling away of rattling away, usage is good, and in addition, durability is also good.

According to hinge means of the present invention, employing has metal first cam member, metal second cam member, reaches the formation of plastic stopper element; The engagement lugs of this second cam member and this first cam member is carried out cam engagement, can relatively rotate with first cam member; This stopper element is located at the back of first cam member, with the chimeric and unitary rotation of this first cam member, is installed on the opposing party of above-mentioned casing with first cam member; So, the opening operation that opens and closes casing can be carried out simply, can carry out brisk operation, simultaneously, can be often be embedded in the stopper element of the hole portion of casing by the state that gently is pressed into is chimeric with first cam member, the generation of coughing up the noise of rattling away of rattling away of coughing up between hinge means and casing can be prevented.

According to hinge means of the present invention, adopt to have the formation of housing, metal first cam member, metal second cam member, spring component and shaft component; This first cam member forms outer engagement protuberance and interior engagement lugs; The outer engagement protuberance that this second cam member forms first cam member carries out the outer engagement inclined plane part of cam engagement, and in addition, engagement lugs is carried out the interior engagement ramp portion of cam engagement in forming; So the opening operation that opens and closes casing can be carried out simply, can carry out brisk operation, simultaneously, usage is good, and durability is also good, in addition, the opening operation that opens and closes casing is simple, and can obtain wide open angle, so, operation convenience is also good, in addition, action is stable, and reliability is also good.

According to hinge means of the present invention, employing has metal first cam member, metal second cam member, reaches the formation of plastic retaining member; This first cam member forms outer engagement protuberance and interior engagement lugs; The outer engagement protuberance that this second cam member forms first cam member carries out the outer engagement inclined plane part of cam engagement, and in addition, engagement lugs is carried out the interior engagement ramp portion of cam engagement in forming; The profile of this retaining member forms greatlyyer than second cam member, is housed in the housing by the state that gently is pressed into, with the chimeric and unitary rotation of second cam member; So the opening operation that opens and closes casing can be carried out simply, can carry out brisk operation, simultaneously, rocking that member is mutual is prevented, even for by the impact of overturn point by causing, also do not cough up the different sounds such as coughing up the noise of rattling away of rattling away, usage is good, and durability is also good, in addition, the opening operation that opens and closes casing is simple, and can obtain wide open angle, so operation convenience is also good, in addition, action is stable, and reliability is also good.

According to hinge means of the present invention, employing has metal first cam member, metal second cam member, reaches the formation of plastic retaining member; This first cam member forms engagement lugs respectively at the two positions of base portion; The engagement lugs of this second cam member and first cam member is carried out cam engagement, each engagement ramp portion form respectively from wall portion that base portion constitutes perpendicular to sense of rotation ground, from the upper end portion of this wall portion until first inclined plane part of the rising at top, second inclined plane part that descends obliquely from the top; The profile of this retaining member forms greatlyyer than second cam member, is housed in the housing by the state that gently is pressed into, with the chimeric and unitary rotation of second cam member; So the opening operation that opens and closes casing can be carried out simply, can carry out brisk operation, simultaneously, rocking that member is mutual is prevented, even for by the impact of overturn point by causing, do not cough up the different sounds such as coughing up the noise of rattling away of rattling away yet, usage is good, and durability is also good, in addition, the opening operation that opens and closes casing is simple, and can obtain wide open angle, so operation convenience is also good.

According to hinge means of the present invention, at the back of this first cam member plastic stopper element is set, chimeric and the unitary rotation of this stopper element and this first cam member, be installed on the opposing party of casing with first cam member, owing to adopt such formation, so, can be often make the stopper element that embeds with first cam member be fitted to the hole portion of casing by the state that gently is pressed into, have and can prevent the rattle away effect of the generation of coughing up the noise of rattling away of coughing up between hinge means and casing.

According to hinge means of the present invention, owing to housing is made with metal, so, have the good effect of intensity and durability.

According to hinge means of the present invention, housing and axis body are carried out surface treatment by the low metal of resistance respectively, owing to adopt such formation, so, energising between each member is good, improve the axis body of hinge means and the on state characteristic of on state characteristic between housing and hinge means self, help the main body casing of portable set and the energising characteristic between the switching casing.

Description of drawings

Fig. 1 illustrates the perspective exploded view of the hinge means of first embodiment of the invention.

Fig. 2 illustrates first cam member of the hinge means of first mode of execution, (a) is front view, (b) is side view, (c) is plan view.

Fig. 3 illustrates second cam member of the hinge means of first mode of execution, (a) is front view, (b) is side view, (c) is plan view.

Fig. 4 illustrate mode of execution hinge means housing perspective view (a) (b).

Fig. 5 illustrates hinge means, (a) is left side view, (b) is front view, (c) is right side view.

Fig. 6 illustrates the figure of hinge means at the installation form of mobile phone.

Fig. 7 is the figure that the state of having opened mobile phone is shown, and (a) is first operating position, (b) is second operating position.

Fig. 8 is the unfolded drawing of cam face of engagement ramp portion that second cam member of hinge means is shown.

Fig. 9 is the figure of the angle of the inclined plane part of second cam member that hinge means is shown, first cam member and each inclined plane part.

Figure 10 is the figure (a) (b) (c) that the jointing state of first cam member of hinge means and second cam member is shown.

Figure 11 illustrates the perspective exploded view of the hinge means of second embodiment of the invention.

Figure 12 illustrate second mode of execution hinge means first cam member perspective view (a) (b).

Figure 13 illustrate second mode of execution hinge means stopper element perspective view (a) (b).

Figure 14 illustrate second mode of execution hinge means second cam member perspective view (a) (b).

Figure 15 illustrates first cam member (a) and second cam member (b) of second mode of execution.

Figure 16 illustrate second mode of execution hinge means retaining member perspective view (a) (b).

Figure 17 has illustrated first cam member chimeric and the figure of the state of stopper element.

Figure 18 has illustrated second cam member chimeric and the figure of the state of retaining member.

Figure 19 is the figure of section that the hinge means of mode of execution is shown.

Figure 20 is the perspective view of the hinge means of mode of execution.

Figure 21 is the unfolded drawing with the engagement ramp portion of second cam member of plane expression hinge means.

Figure 22 is with the unfolded drawing (a) of the cam engagement portion of first cam member of plane expression hinge means and second cam member (b) (c).

Figure 23 is the explanatory drawing (a) of two cam engagement portions of first cam member that hinge means is shown overlappingly and second cam member (b) (c).

Figure 24 illustrates first cam member of another form and the perspective exploded view of stopper element.

Figure 25 is the figure of cam that the hinge member of prior art example is shown.

Figure 26 is the perspective exploded view of the hinge means of expression the 3rd mode of execution of the present invention.

Figure 27 represents first cam member of the hinge means of the 3rd mode of execution, (a) is plan view, (b) is front view, (c) is side view, (d) is worm's eye view.

Figure 28 represents second cam member of the hinge means of the 3rd mode of execution, (a) is plan view, (b) is front view, (c) is side view, (d) is worm's eye view.

Figure 29 (a) is the figure of the state of chimeric first cam member of expression and stopper element, (b) is the figure of the state of chimeric second cam member of expression and retaining member.

Figure 30 (a) is the perspective view of the hinge means of mode of execution, (b) is the sectional view of hinge means.

Figure 31 is the unfolded drawing with the cam engagement state of first cam member of plane expression hinge means and second cam member, (a) expression opens and closes the state that the open angle of casing is 0 degree (closing), (b) expression opens and closes the state that the open angle of casing is 25 degree, (c) expression opens and closes the state that the open angle of casing is 90 degree, and (d) expression opens and closes the state that the open angle of casing is 165 degree (standard-sized sheet).

Embodiment

Below, embodiments of the present invention are described with reference to the accompanying drawings.

Fig. 1 relates to first mode of execution, and the perspective exploded view of the hinge means 2 that is used for folding mobile phone is shown.The member that constitutes this hinge means 2 is first cam member 6, second cam member 8, helical spring 10,11, housing 12, slider 14, reaches axis body 16.In these members, constitute the cam mechanism of hinge means (turnover hinge) by first cam member 6 and second cam member 8.In addition, above-mentioned mobile phone has main body casing 72 and the switching casing 70 that is connected by above-mentioned hinge means 2 as described later.Hinge means 2 also can be used for folder-type portable equipment such as portable game machine except mobile phone.

Above-mentioned first cam member 6 and second cam member 8 are made of SUS steel such as (stainless steels), and housing 12 also is made of SUS, but in addition, the metallic material that also can use metal or be shaped by sintering, MIM (metal injection moulding).Above-mentioned slider 14 is made of polymerization slider synthetic resin such as (TM trade mark).Above-mentioned axis body 16 is made of steel such as SWCH, and above-mentioned helical spring 10,11 is made of steel such as SWP.

Like that, above-mentioned first cam member 6 is the shape that engagement lugs 22,22 is formed at the centrosymmetric two positions of base portion in axial side's side of the base portion 20 in ellipticity cross section shown in Fig. 2 (a)～(c).Each engagement lugs 22,22 forms wall portion 23,23 a side of protuberance towards the direction vertical with the sense of rotation of this cam member respectively, in addition, form the opposing party and to constitute 30 with respect to above-mentioned wall portion 23 and spend, form smooth front end 25 tinily at the front end of protuberance to the steep anxious inclined plane part 24,24 of the angles of 40 degree.Form smooth chimeric facially 21,21 at the position, the left and right sides of above-mentioned base portion 20, in addition, form recess 29,29 at the position, front and back, the hole portion 32 that connects vertically is set in the central authorities of base portion 20.

Above-mentioned second cam member 8 is such shown in Fig. 3 (a)～(c), axial side's side at the base portion 33 of oval cross section, towards the direction vertical wall portion 35,35 is formed at the centrosymmetric both sides of base portion respectively, forms engagement ramp portion 34,34 respectively from the upper end portion of each wall portion with the sense of rotation of second cam member.Above-mentioned engagement ramp portion 34,34 is made of the inclined plane part that rises and descend, has first inclined plane part 36,36 that arrives from the upper end portion 31 of wall portion 35,35 as the rising at the top 37,37 of overturn point, 37,37 with second inclined plane part 38,38 of straight line shape by the decline of the angle tilt of steep urgency from the top, coupled, the 3rd milder inclined plane part 39,39 that tilts, and from this further the 4th inclined plane part 40,40 that arrives bottom 41,41.

In addition, at above-mentioned second inclined plane part 38 and the very little recess 42 of 39 formation of above-mentioned the 3rd inclined plane part,, keep the engagement lugs 22 of above-mentioned first cam member 6 for the moment in this position. Form slip protuberance 43,43 respectively in the bi-side of above-mentioned base portion 33, the hole portion 44 that connects vertically is set in the central authorities of base portion 33.

Above-mentioned housing 12 is the container of tubular as shown in Figure 4, the distolateral formation bottom 58 in the tube portion in ellipticity cross section, and another distolateral formation opening port 57, this bottom 58 is provided with inserting hole 56 at central part.Form smooth chimeric facially 60,60 at the axisymmetric position of the tube portion of this housing 12 respectively, in addition, chimeric facial 60 form respectively from opening port 57 towards the axial slit 62,62 of the conduct slip recess of incision as the crow flies at each.

As shown in Figure 1, the thickness of above-mentioned helical spring 10,11 is different with roll diameter, and helical spring 10 forms to such an extent that thinner and roll diameter forms forr a short time than helical spring 11.For this reason, helical spring 10 uses the elastic force of the both sides' spring forces that can obtain to superpose by the form of the inside that is positioned at helical spring 11.Improve the elastic force of the spring of hinge means 2 like this, in the time of can realizing opening and closing the closing of casing 70 and the reinforcement of the retention performance when open, in addition, can obtain suitable and enough switching characteristics., use 2 helical springs here, but also can form 1 the helical spring form of using.Above-mentioned slider 14 is that open circles is tabular, friction less, the packing ring that slides easily of surface.In addition, above-mentioned axis body 16 is made of the axial region 66 of discoideus head 64 and circular cross-section.

When the above-mentioned hinge means 2 of assembling, as shown in Figure 5, from the inserting hole 56 of the bottom 58 of housing 12 axis body 16 of chimeric slider 14 is inserted and to be led in the housing, at its axial region 66 chimeric helical springs 10,11, make each chimeric opposite to each other second cam member 8 of cam part and first cam member 6 again, housing 12 is accommodated with it in base portion 20 ground of residual first cam member 6.At this moment, respectively can be with two slip protuberances 43,43 of second cam member 8 towards the slit 62,62 that is fitted to as the slip recess of each housing 12 with axially being free to slide.Then, the front end from the axial region 66 of the outstanding axis body 16 of the base portion 20 of first cam member 6 is carried out caulking and installs, by the state group that has retrained each member at axis body 16 device that hinges.

Second cam member 8 of above-mentioned hinge means 2 is chimeric with housing 12, both unitary rotation, and first cam member 6 engages with second cam member 8, and relatively rotates with this second cam member 8.In addition, above-mentioned first cam member 6 and second cam member 8 all be can't help the rotational restraint of axis body 16, are form freely, so axis body 16 is alleviated with the influence of the contact resistance of each member, the brisk sense of on-off action is improved.

On the other hand, by 10,11 pairs first cam members 6 of helical spring and second cam member, 8 application of forces, become the state of both crimping often, along with relatively rotating of first cam member 6 and second cam member 8, the engagement lugs 22,22 of first cam member 6 carries out towards the rising of the engagement ramp portion 34,34 of second cam member 8 and descends moving repeatedly, forms cam mechanism.Like this, hinge means 2 makes first cam member 6 relatively rotate with respect to housing 12 (second cam member 8) by above-mentioned cam mechanism.

Above-mentioned second cam member 8 along with the relatively rotating of first cam member 6, slip protuberance 43,43 slides at the slit 62,62 of housing 12 and moves, second cam member 8 moves back and forth in housing 12 vertically.Above-mentioned first cam member 6 and second cam member 8 relatively rotate, and can obtain same action effect as cam mechanism by making two cam members state in opposite directions change allocation position on the formation.In this occasion, second cam member 8 is configured to the tip side of axis body 16, each member is suitable for each allocation position respectively.

The profile of above-mentioned hinge means 2 is formed by the housing 12 and first cam member 6 as described above, and square with the axis cross section is oval on the whole.In addition, hinge means 2 is contained in second cam member 8 in the housing 12, first cam member 6 is the form of giving prominence to from the opening port 57 of housing 12, but the cross-sectional shape of first cam member 6 forms forr a short time than the interior shape of housing 12, by towards this first cam member 6 of axial push, can first cam member 6 be submerged accommodate in the housing 12 along with the compression of helical spring 10,11.

In addition, above-mentioned hinge means 2 is installed on folding mobile phone as shown in Figure 6, this mobile phone have by be provided with liquid crystal display picture etc. be subjected to switching casing 70 that words portion constitutes and by the main body casing 72 that send words portion to constitute that is provided with operated key etc.Be provided with first joint 74 that connects switching casing 70 at aforementioned body casing 72.But the embedding hole portion 76 in the ellipticity cross section of side's side setting setting-in hinge means 2 of this first joint 74 is at the opposing party's side mount pin 78.Be provided with the diameter second hole portion littler than this embedding hole portion 76 in the inside of above-mentioned embedding hole portion 76.In addition, hinge means 2 integral body can be embedded into above-mentioned embedding hole portion 76, and the rotation of the housing 12 of hinge means 2 (second cam member 8) in casing stoped.

Both sides in the casing end of a side switching casing 70 are provided with second joint 80 and the 3rd joint 82 that is connected with main body casing 72.Wherein, second joint 80 in an end of fixed hinge device 2 be provided with first cam member 6 of hinge means 2 can be chimeric and stop the fixed hole portion 84 of elliptic cross-section of the rotation of first cam member 6.In addition, be provided with the hole portion 86 that the front end of this pin 78 can be charged into, these hole portion 86 rotatably support pins 78 at the 3rd joint 82 that connects above-mentioned pin 78.

At first, in the embedding hole portion 76 of main body casing 72 housing 12 parts of insert hinge device 2 vertically.Then, make above-mentioned pin 78 protrude into the hole portion 86 of the 3rd joint 82, on the other hand, will be pressed in the embedding hole portion 76, and under this pushing state, make first joint 74 of main body casing 72 aim at second joint 80 that opens and closes casing 70 from first joint, the 74 first outstanding cam members 6., utilize the rebounding force of the helical spring 10,11 of hinge means 2 here, make the base portion 20 of first cam member 6 charge into the fixed hole portion 84 that is fixed to second joint 80.At this moment, the recess 29,29 with base portion 20 is fitted to the protuberance of being located at fixed hole portion 84, feasible fixing reliably.

When above-mentioned hinge means 2 is installed to mobile phone, make with respect to main body casing 72 under the state that opens and closes casing 70 open (open angle 165 degree), the front end 25 of the engagement lugs 22 of first cam member 6 becomes the state of the intermediate portion of the 4th inclined plane part 40 that is contacted with second cam member 8, and the position before above-mentioned front end 25 is about to arrive bottom 41 stops.At above-mentioned open state, stop switching casing 70 further to open mobile by the stop mechanism of being located at 72 of switching casing 70 and main body casings.Like that, the mobile phone that above-mentioned hinge means 2 has been installed keeps for the moment at first operating position (open angle 130 degree), can open into second operating position shown in Fig. 7 (b) (open angle 165 degree) shown in Fig. 7 (a).At first operating position, carry out the affirmation of display frame etc., notify and key operation etc. at second operating position.

Below, the rotational characteristic of above-mentioned hinge means 2 is described.

Fig. 8 is the unfolded drawing of cam face that the engagement ramp portion 34 of above-mentioned second cam member 8 is shown.This cam face represent first cam member 6 with respect to the rotation angle of second cam member 8 from the scopes of 0 degree～180 degree roughly.The shape of above-mentioned engagement ramp portion 34 is different with outside diameter at the hole portion 44 residing internal side diameters of second cam member 8, and the shape in the roughly neutral position of the internal diameter of second cam member 8 and external diameter is represented on this cam face plane with opening.

Can widely guarantee the scope of engagement ramp portion 34 by the wall portion 35 of above-mentioned second cam member 8, for this reason, can make the open angle that opens and closes casing 70 bigger,, can obtain the open angles of maximum open 165 degree here.

In addition, first cam member 6 is by behind the overturn point (top) of second cam member 8, make switching casing 70 open automatically, so, the cam face of engagement ramp portion 34 (gabarit shape) is a concavity, 41 form continuous falling ramp from second inclined plane part 38 to the bottom, be vertically formed wall portion 35 from this bottom 41.

Particularly second inclined plane part 38 is 37 directly press the shapes that several angle tilts from the top, makes casing (switching casing) stressed and impetus that formation is stronger in opening action that this hinge means has been installed thus.In addition, the front end 25 that keeps first cam member 6 by the recess 42 on the border of being located at above-mentioned second inclined plane part 38 and the 3rd inclined plane part 39 for the moment.For this reason,, can positively keep opening and closing casing 70, help operability at first operating position of mobile phone.

Here, above-mentioned first inclined plane part 36 forms 15.5 scopes of spending as the position at top 37 from 0 of spending.Though up to above-mentioned top 37 (overturn point) rotation angle being set at 15.5 spends, but the starting point 30 of first cam member 6 (opening and closing open angle 0 degree of casing) is the position of rotation angle 7.5 degree, so, when it was deducted, the open angle that opens and closes casing 70 was that the position of 8 degree becomes overturn point.This overturn point is as the scope that can open and close the opening operation of casing 70 easily, and open angle is spent to the scopes of 20 degree good from 5, but be set at 5 spend to the scopes of 15 degree better.

Above-mentioned second inclined plane part 38 is formed on from the scope of residing 120 degree of starting point 30 to first operating positions, is formed at the scope of 120 to 165 degree from the neutral position of above-mentioned the 3rd inclined plane part 39 to the 4th inclined plane parts 40.In addition, part as above-mentioned the 3rd inclined plane part 39 forms above-mentioned recess 42, so, charge under the state that this recess 42 kept at the front end 25 of first cam member 6, open and close casing 70 and be essentially about 130 degree with respect to the open angle of main body casing 72.

In addition, as shown in Figure 9, about the angle that sense of rotation constituted (S1) of first inclined plane part 36 with respect to above-mentioned second cam member 8, second inclined plane part 38 is with respect to the angle that sense of rotation constituted (S2) of above-mentioned second cam member 8, the 3rd inclined plane part 39 is with respect to the angle that sense of rotation constituted (S3) of above-mentioned second cam member 8, the 4th inclined plane part 40 is with respect to the angle that sense of rotation constituted (S4) of above-mentioned second cam member 8, and inclined plane part 24 is with respect to the angle that sense of rotation constituted (S5) of above-mentioned first cam member 6, between these each angles, form the form of relation with S5＞S4＞S2＞S3.In addition, there are rise and descend different in above-mentioned angle S1 with S2, but the inclination on inclined-plane is the angle of roughly the same degree.The angle (S3) that the 3rd inclined plane part 39 constitutes is very little, also can be roughly 0 degree.

Magnitude relationship according to the angle of above-mentioned each inclined plane part, first cam member 6 can be rightly moves along the engagement ramp portion 34 of second cam member 8, acquisition is to the enough power of automatic rotary action of first cam member 6, in starting point (closing the position) and the big rotatory force of terminal point (open position) effect.

In addition, also the 3rd inclined plane part 39 can be set, but make second inclined plane part 38 be directly connected to the 4th inclined plane part 40.In this occasion, open and close the open angle that casing 70 can be put into 165 degree from overturn point one air to open.

Figure 10 (a) (b) (c) illustrates the jointing state of first cam member 6 with respect to each inclined plane part of the engagement ramp portion 34 in second cam member 8.Figure 10 (a) illustrates first cam member 6 that opens and closes under the state that casing 70 the cut out position (starting point) with respect to second cam member 8.

Then, the front end 25 of above-mentioned first cam member 6 is by the top 37 of second cam member 8, and on one side in second inclined plane part, 38 slips decline on one side, first cam member 6 automatically rotates (relatively rotating) with respect to second cam member 8.Then, like that, the front end 25 of first cam member 6 arrives the bottom of second inclined plane part 38 shown in Figure 10 (b), simultaneously, opens and closes casing 70 and automatically is opened to first operating position, is kept in this position.

When the operator further will open and close casing 70 when opening, the front end 25 of above-mentioned engagement lugs 22 enters into the 4th inclined plane part 40 via the 3rd inclined plane part 39 of second cam member 8.Then, shown in Figure 10 (c) like that, when the front end 25 of above-mentioned engagement lugs 22 arrives the neutral position (opening and closing open angle 165 degree of casing) of the 4th inclined plane part 40, open and close casing 70 by be located at and the main body casing between stop mechanism stop opening action.

At this moment, the front end 25 of first cam member 6 is to be accompanied by the state that helical spring elastic force stops in the way of the 4th inclined plane part 40 of the inclination of steep urgency, so, become the state that has acted on big rotatory force, open and close casing 70 and positively kept, can not rock in this position.Open and close the position of open angle 165 degree of casing at this, the operator converses and key operation etc.

The mobile phone that above-mentioned hinge means 2 has been installed when opening and closing with respect to 72 pairs of switching casings 70 of main body casing, hinge means 2 starts, the engagement lugs 22 of carrying out first cam member 6 repeatedly moves in the rise and fall of the engagement ramp portion 34 of second cam member 8.When opening and closing casing when opening, open the position (overturn point) that opens and closes casing 70 slightly the operator, engagement lugs 22 arrives tops 37, along with engagement lugs 22 from descending along second inclined plane part 38 here, towards opening the direction application of force that opens and closes casing 70, open and close casing 70 and automatically be opened to operating position.In addition, open and close casing 70 and carry out stop by the mutual contact of casing etc., open state is stopped, being maintained fixed in this position at predetermined open angle (165 degree).

When will opening and closing casing 70 when closing, the operator makes and opens and closes casing and close mobilely, and this moment, the engagement lugs 22 of first cam member 6 rose along the 4th inclined plane part 40,37 moves towards the top from the 3rd inclined plane part 39, second inclined plane part 38.Under this state, second cam member 8 is on one side with respect to first cam member, 6 compression helical springs, and one side slides mobile towards the inboard of housing 12.In addition, when the front end 25 of engagement lugs 22 surpassed top 37, engagement lugs 22 arrived first inclined plane part 36, was descended along first inclined plane part 36 by the elastic force of helical spring 10,11, and it is overlapping and close that the position opens and closes casing 70 and main body casing 72 in its way.

When the closing of above-mentioned switching casing 70 or under the hold mode when open, the engagement lugs 22 of above-mentioned first cam member 6 is being kept under the very strong state of the attraction force of the engagement ramp portion 34 of second cam member 8, positively keeps opening and closing casing 70 with respect to the closed condition of main body casing 72 be opened to the open state of talking position.For this reason, open and close casing 70 can be not in off position or talking position rock.

Therefore, according to the hinge means of above-mentioned first mode of execution and the mobile phone of this hinge means of use, the operator will open and close casing to open slightly, after this automatically be opened to operating position, so, given play to good miscellaneous function during opening operation, opening operation is easy, in addition, the closed condition and the open state that can positively keep casing in addition, open and close the open angle that casing expands broad to, can converse and key operation etc., convenience is also good.

Below, second mode of execution is described with reference to the accompanying drawings.

Figure 11 relates to mode of execution, and the perspective exploded view of the hinge means 102 that is used for folding mobile phone is shown.The member that constitutes this hinge means 102 is first cam member 106, stopper element 107, second cam member 108, retaining member 109, helical spring 10,11, housing 12, E ring 114, reaches axis body 116.Member about identical with the member of above-mentioned first mode of execution adopts identical symbol here, omits its detailed explanation.

In above-mentioned member, constitute the cam mechanism of hinge means (turnover hinge) by first cam member 106 and second cam member 108.In addition, above-mentioned mobile phone has the switching casing 70 that is connected with main body casing 72 by above-mentioned hinge means 102.Hinge means 102 also can use folding portable sets such as portable game machine except mobile phone.

Above-mentioned first cam member 106 and second cam member 108 all are made of stainless steel (SUS), can use MIM (metal injection moulding), steel metallic material such as (SPCC) in addition.In addition, first cam member 106 and second cam member 108 are implemented surface treatments such as non-electrolysis Ni plating.Above-mentioned stopper element 107 and retaining member 109 all are made of POM resin synthetic resin materials such as (polyoxymethylene).The formability of POM resin, fatigue resistance and friction and wear characteristic are good.

Above-mentioned axis body 116 is made of metallic material such as the compound automatic steel of sulphur, aluminium, and E ring 114 is made of steel.Gold-plated respectively to above-mentioned axis body 116 and E ring 114 as surface treatment, implement electroless plating Ni surface treatments such as (nickel) on the surface of housing 12.

As shown in Figure 12, above-mentioned first cam member 106 is formed at the centrosymmetric two positions of the long dimension side of base portion in axial side's side of elliptoid base portion 120 with engagement lugs 122,122, and the fastening protuberance 118,118 that will have an acute angle-shaped front end 125,125 in the opposing party's side of base portion 120 is formed at the center symmetry two positions of the long dimension side of base portion.Each engagement lugs 122,122 nearby forms wall portion 123,123 towards Vertical direction (with respect to the sense of rotation of cam member) in side's side of front end 125 respectively, in addition, form the inclined plane part 124,124 that becomes mild gradually from 30 degree～40 degree with respect to above-mentioned wall portion 123 in the opposing party's side.In addition, each front end 125 forms the circular shape of band slightly.

The position in the outer part of the wall portion 123 of the side in above-mentioned wall portion 123,123 forms towards circumferentially outstanding protuberance 152, in addition, forms towards circumferentially outstanding protuberance 153 at the position in the inner part of the opposing party's wall portion 123.In the cam engagement portion of these protuberances 152,153, form the inclined plane part 151,151 that tilts with straight line shape from above-mentioned front end 125,125 respectively continuously.First inclined plane part 136,136 of these inclined plane parts 151,151 and following second cam member 8 carries out cam engagement.

Above-mentioned fastening protuberance 118,118 be respectively from the end parts parallel of base portion 120 in axially projecting shape, the cross section parallel with the face of base portion form along with the center towards base portion dwindle fan-shaped.Be provided with smooth chimeric facially 121,121 at the position of the short dimension side of above-mentioned base portion 120, in addition, the hole portion 132 that connects vertically be set in the central authorities of base portion 120.

As shown in Figure 13, above-mentioned stopper element 107 constitute respectively about long size position form the ellipse of recess 126,126 respectively, form smooth chimeric facially 127,127 at short size position, in central authorities hole portion 128 is set.In addition, at above-mentioned chimeric facial 127,127 two end part nearby respectively towards prominent bar (crush rib Network ラ ッ シ ュ リ Block) 129,129 axially is set.

Above-mentioned second cam member 108 as Figure 14 (a) (b) shown in like that, axial side's side at the base portion 133 in ellipticity cross section, towards Vertical direction (with respect to the sense of rotation of cam member) wall portion 135,135 is formed at the centrosymmetric both sides of base portion respectively, in addition, the upper end portion from each wall portion forms engagement ramp portion 134,134 respectively.In the opposing party's side of base portion 133 respectively with fastening protuberance 131,131 from the end parts parallel of base portion in the axial tab-like centrosymmetric two positions that is formed in base portion.

Above-mentioned engagement ramp portion 134,134 is made of the inclined plane part that rises and descend, has first inclined plane part 136,136 that arrives from the upper end portion of wall portion 135,135 as the rising at the top 137,137 of overturn point, 137,137 press second inclined plane part 138,138 of the decline of the length that straight line shape tilts from the top, with its continuously, tilt to become gradually the 3rd anxious inclined plane part 139,139, and from this further arrive bottom 141,141, with the 4th inclined plane part 140,140 of straight line shape inclination.

By these inclined plane parts 136,138,139,140, above-mentioned top 137, above-mentioned bottom 141, and wall portion 135 form the coupling recess 142,142 that engages with the engagement lugs 122,122 of above-mentioned first cam member 106.In addition, form the slip protuberance 143,143 that engages and slide with housing 12 respectively in the bi-side of above-mentioned base portion 133, these slip protuberances 143,143 towards with the direction setting of the direction quadrature of above-mentioned fastening protuberance 131,131.In the central authorities of base portion 133 hole portion 144 towards axial perforation is set.

In addition, the wall portion 135 of the side in the above-mentioned wall portion 135,135 forms towards the notch 154 that circumferentially is cut at position in the outer part, and in addition, the opposing party's wall portion 135 forms towards the notch 155 that circumferentially is cut at position in the inner part.Figure 15 (a) illustrates above-mentioned first cam member 106, and Figure 15 (b) illustrates above-mentioned second cam member 108.Here, the notch 154,154 of above-mentioned second cam member 108 is respectively the protuberance 152,153 that makes above-mentioned first cam member 106 and charges into the position of accommodating to make a concession.

As shown in Figure 16, above-mentioned retaining member 109 respectively about elliptoid base portion 145 (long dimension side) position form recess 146,146, about (short dimension side) position be parallel to the axially outstanding fastening protuberance 147,147 that forms respectively.In addition, the slip protuberance 148,148 that slides with housing 12 is set with engaging respectively in the outside of these fastening protuberances 147,147.In addition, the central authorities at above-mentioned base portion form the hole portion 150 that connects vertically.

Above-mentioned axis body 116 is that discoideus head 164 constitutes by the axial region 166 of circular cross-section, an end that is formed at this axial region 166, hole enlargement as shown in Figure 11, nearby forms the slot part 167 of ring-type in the other end of above-mentioned axial region 166.

Figure 17 illustrates the state that stopper element 107 is fitted to the back of above-mentioned first cam member 106.Embed the fastening protuberance 118,118 of first cam member 106 respectively and it is integrated at the recess 126,126 of stopper element 107.The external diameter (periphery) identical (or same degree) of the external diameter of this first cam member 106 (periphery) and stopper element 107 does not have special difference except the prominent bar 129,129 of stopper element 107.

Figure 18 is illustrated in the state of the chimeric retaining member 109 in back of above-mentioned second cam member 108.The fastening protuberance 147,147 that embeds second cam member 108 at the recess 146,146 of retaining member 109 respectively is integrated with it.Here, the profile of retaining member 109 (shape of the part that contacts with on every side housing 12) is than the formation of enclosing the land of the profile big of second cam member 108.

Here, the profile of above-mentioned second cam member 108 forms has the size that is contained in gap in the housing 12, and the profile of above-mentioned retaining member 109 forms the size of accommodating by the state that gently is pressed in the housing 12.In addition, the width of the slip protuberance 148,148 of retaining member 109 form with the groove width identical (or same degree) of the slit 62,62 of above-mentioned housing 12, above-mentioned slip protuberance 148 can be embedded in slit 62 by the state very close to each other that gently is pressed into.The width of the slip protuberance 143,143 of second cam member 108 forms narrowlyer than the groove width of slit 62, has the gap between the two.

This be because, above-mentioned second cam member 108 be a metal, so, when not having above-mentioned gap, apply big load at the slot part of slit 62, in addition, there is the danger that is difficult to slip in housing 12 in second cam member 108.On the other hand, though above-mentioned retaining member 109 is very close to each other with respect to housing 12, but because the material of retaining member 109 is synthetic resin (POM), so, compare soft with the housing 12 of metal, action by the initial stage makes the synthetic resin wearing and tearing and break-in, so, load with respect to housing 12 is also few, the slip resistance of the retaining member 109 that slides in housing 12 is also low, with above-mentioned break-in takes place similarly, so, even be the state that gently is pressed into, can not produce special obstacle in housing 12, sliding yet.

When the above-mentioned hinge means 102 of assembling, the recess 126,126 that respectively the fastening protuberance 118,118 of first cam member 106 is fitted to earlier stopper element 107 makes it integrated, they are embedded into axis body 116, with the head 164 of stopper element 107 fastenings to axis body 116.Then, the recess 146,146 that respectively the fastening protuberance 147,147 of second cam member 108 is fitted to retaining member 109 is integrated with it, they are embedded into axis body 116, make this second cam member 108 and first cam member 106 carry out cam engagement opposite to each other.Then, in helical spring 10, be inserted into chimeric two helical springs 10,11 under the state in the helical spring 11.

Then, residual above-mentioned stopper element 107 and first cam member, 106 ground are contained in other member in the housing 12, revolt above-mentioned helical spring 10,11 with inserting hole 56 slotting lead to housing outside of above-mentioned axial region 166 from the bottom 58 of housing 12.At this moment, can carry out axially slidably two slip protuberances 143,143 of the two slip protuberances 148,148 of retaining member 109 and second cam member 108 are fitted to the slit 62,62 of housing 12 in advance.Then, make E encircle the slot part 167 of 114 fastenings, assembling hinge means 102 under the state that each member is constrained in axis body 116 by spring force to the front end of above-mentioned axial region 166.Figure 19 illustrates the cross section of the hinge means 102 that has carried out above-mentioned assembling.

Above-mentioned hinge means 102 is chimeric with housing 12 with the retaining member 109 and second cam member 108, their unitary rotation, in addition, first cam member 106 with state that second cam member 108 engages under relatively rotate with respect to second cam member 108.In addition, stopper element 107 and first cam member 106 unitary rotation chimeric with first cam member 106.In addition, above-mentioned first cam member 106 and second cam member 108 are not subjected to the rotational restraint of axis body 116, are form freely.

On the other hand, push first cam member 106 and second cam member 108 makes it become the state of mutual crimping by the elastic force of helical spring 10,11, along with relatively rotating of first cam member 106 and second cam member 108, the engagement lugs 122,122 of carrying out first cam member 106 repeatedly moves in the rising and the decline of the coupling recess 142,142 of second cam member 108, forms cam mechanism.Above-mentioned second cam member 108 with retaining member 109 along with the relatively rotating of first cam member 106, move back and forth vertically in housing 12, the slip protuberance 148,148 of its slip protuberance 143,143 and retaining member 109 all slides mobile by the state that engages with the slit 62,62 of housing 12 vertically.Like this, hinge means 102 makes first cam member 106 and stopper element 107 relatively rotate with respect to housing 12 (second cam member 108) by above-mentioned cam mechanism.

Above-mentioned first cam member 106 and second cam member 108 relatively rotate, and can obtain same action effect as cam mechanism by making two cam members state in opposite directions change allocation position on the formation.In this occasion, second cam member 108 and stopper element 107 are configured to head 164 sides of axis body 116, first cam member 106 and retaining member 109 to be accommodated in the housing 12, each member is suitable for each allocation position ground respectively and constitutes.In addition, the slip protuberance of second cam member 108 does not need, but these slip protuberances are located at the appropriate location of first cam member 106 respectively.

Certainly, even do not use above-mentioned stopper element 107, retaining member 109, can the cam engagement and the effect of (not needing each fastening protuberance) produce any obstacle mutually to two cam members of above-mentioned first cam member 106 and second cam member 108 yet.

As shown in Figure 20, the profile of above-mentioned hinge means 102 as described above by housing 12, first cam member 106, and stopper element 107 forms, square with the axis cross section is ellipse on the whole.In addition, hinge means 102 is accommodated the retaining member 109 and second cam member 108 in housing 12, first cam member 106 and stopper element 107 are the form of giving prominence to from the opening port 57 of housing 12, but the profile in each cross section of first cam member 106 and stopper element 107 forms forr a short time than the interior shape of housing 12, towards this first cam member 106 of axial push and stopper element 107, can submerge along with the compression of helical spring 10,11 is contained in the housing 12.

In main body casing 72 that has been connected mobile phone by above-mentioned hinge means 102 and the occasion that opens and closes casing 70, the above-mentioned two tanks of having assembled electronic equipment is electrically connected (ground wire etc.) mutually.For this reason, this hinge means 102 is in order to ensure conducting property, respectively axis body 116 and E encircled 114 gold-platedly, and the surface of housing 12 implemented electroless plating Ni.The housing 12 here uses stainless steel (SUS), but this stainless steel makes the conducting instability owing to surface film oxide, so, also implemented above-mentioned plating Ni.By above-mentioned plating etc., improved the on state characteristic of the on state characteristic of 12 of the axis body 116 of hinge means 102 and housings and hinge means 102 self.

In addition, above-mentioned hinge means 102 is by being installed on clamshell phone shown in Figure 6 with the same program of the explanation of above-mentioned first mode of execution.Under the state of switching casing 70 of mobile phone of having opened (165 ° of open angles), the operator converses and key operation etc.

Below, the rotational characteristic of above-mentioned hinge means 102 is described.

Figure 21 opens the unfolded drawing of cam face of the engagement ramp portion 134 of above-mentioned second cam member 108 for plane earth.This cam face illustrate first cam member 106 with respect to the rotation angle of second cam member 108 for roughly 0 spending to the scope of 180 degree.

Form wall portion 135 at second cam member 108, the starting point 130 (rotation angle of hinge is that the open angle of 10 degree, switching casing is the initial position of the switching of 0 degree) of first cam member 106 in first inclined plane part 136 can be located at high position thus, from first inclined plane part 136 is risen slightly behind top 137,141 form the engagement ramp portion 134 that a plurality of inclined plane parts different along the angle of inclination descend towards the bottom.Can guarantee the scope of the engagement ramp portion 134 of broad for this reason, can obtain the open angle of the switching casing 70 of broad by above-mentioned wall portion 135,, obtain the maximum open angles that open into 165 degree here.Above-mentioned top 137 is set to the positions of 25 degree from the engagement end portion 149 of the upper end portion of above-mentioned wall portion 135.

Above-mentioned engagement ramp portion 134 be provided with from above-mentioned engagement end portion 149 until first inclined plane part 136 at top 137, from the top 137 straight line shapies that descend second inclined plane part 138, link to each other with this second inclined plane part 138 and the 3rd inclined plane part 139 that becomes anxious gradually of tilting, and further arrive from this bottom 141 steep suddenly the 4th inclined plane part 140 of decline.Make above-mentioned second inclined plane part 138 be straight line shape, for by make open and close casing 70 from the back, top 137 (overturn point) that closed position is opened slightly the open automatically casing 70 that opens and closes, the cam face in the engagement ramp portion 134 (gabarit shape) form from second inclined plane part 138 to the bottom 141 continuous falling ramps.By this engagement ramp portion 134 with the 141 vertical wall portions 135 that form form the coupling recess 142 of spill from the bottom.

Figure 22 is with the plane cam engagement portion that first cam member 106 and second cam member 108 are shown with launching.The rotation angle (first cam member 106 is with respect to the rotation angle of second cam member 108) that Figure 22 (a) illustrates hinge is 0 degree, and the open angle that opens and closes casing 70 is-10 degree (regulation of carrying out for convenience of description).Here, the rotation angle of hinge is the rotation starting point that 0 kilsyth basalt shows hinge.When using hinge, be the state use of 0 degree (closed position) by the open angle that when hinge rotates slightly, opens and closes casing.This be because, make the mutual joint of cam member of hinge have surplus, prevent cam lock.This locking phenomena is the wall portion 135 (falling into of cam) that first cam member 106 is crossed second cam member 108, and cam member locks mutually.

The rotation angle of Figure 22 (b) expression hinge is that the open angle of 10 degree, switching casing is 0 degree.At this moment, the front end 125 of first cam member 106 is in the way of first inclined plane part 136 of second cam member 108.At this moment, first inclined plane part 136,136 of the inclined plane part 151,151 of first cam member 106 and second cam member 8 carries out cam engagement.Under this state, the direction that is descended by the elastic force of helical spring 10,11 first inclined plane part 136 towards first cam member 106 along second cam member 108 is promptly closed the rotatory force of the directive effect hinge means 102 that opens and closes casing 70, keeps opening and closing casing 70.

The open angles that the rotation angle of Figure 22 (c) expression hinge is 175 degree, open and close casing are 165 degree (stop positions that produced by the stop mechanism of casing).At this moment, the front end 125 of first cam member 106 is arranged in the way of the 4th inclined plane part 140 of second cam member 108, the direction that is descended by the elastic force of helical spring 10,11 the 4th inclined plane part 140 towards first cam member 106 along second cam member 108 is promptly opened the rotatory force of the directive effect hinge means 102 that opens and closes casing 70, keeps opening and closing casing 70.In addition, the protuberance 152,153 of first cam member 106 is respectively the state that the notch 154,155 that protrudes into second cam member 108 is accommodated.

When operation, to open as the switching casing 70 that relative main body casing 72 will cut out slightly, the elastic force of then revolting helical spring 10,11 makes first inclined plane part 136 risings of the front end 125 of first cam member 106 along second cam member 108, arrives top 137.In addition, the front end 125 of above-mentioned first cam member 106 is by the top 137 of second cam member 108, when arriving second inclined plane part 138, stronger elastic force (137 position helical spring is compressed the biglyyest at the top) by helical spring 10,11 makes front end 125 descend while sliding at second inclined plane part 138, and first cam member 106 automatically rotates (relatively rotating) with respect to second cam member 108.

The front end 125 of first cam member 106 arrives the 4th inclined plane part 140 from second inclined plane part 138 via the 3rd inclined plane part 139, when the open angle of the switching casing 70 in the neutral position of the 4th inclined plane part 140 arrives the position of 165 degree, open and close casing 70 by being located at and the stop mechanism of 72 of main body casings stops opening action, open and close casing 70 and kept in this position.What like this, the operator can be by a hand will open and close the operating position that casing 70 is opened to open angle 165 simple to operately.

The locking countermeasure that is realized by the cam face of above-mentioned hinge means 102 is described here.

In this hinge means 102, in the wall portion 123 of first cam member 106 protuberance 152 is set, the notch 155 in that the wall portion 135 of second cam member 108 is provided as the yielding place of above-mentioned protuberance 152 prevents above-mentioned locking.

Each wall portion of above-mentioned two cam members is provided with a pair of in the position of the center of each cam member symmetry (separating 180 degree).Here, by the form of crossing above-mentioned 180 scopes of spending (for example by angle+10 degree) above-mentioned protuberance 152,153 is set at above-mentioned first cam member 106, by this protuberance 152 position of above-mentioned wall portion 123 is prolonged, guarantee surplus, prevent falling into of first cam member 106.In order to ensure yielding (accommodating) zone of above-mentioned protuberance 152, above-mentioned notch 155,155 (respectively by angle-13 degree) is set in the wall portion 135 of above-mentioned second cam member 108.The angle of above-mentioned protuberance is not limited to+10 degree, also can be+20 degree.In addition, in this occasion, the angle of above-mentioned notch also enlarges.

Figure 23 illustrates two cam engagement portions of first cam member 106 and second cam member 108 overlappingly.Among the figure, the part of the cam of first cam member 106 is with oblique line (close) expression, the part of the cam of second cam member 108 is with oblique line (dredging) expression, represents the position that two cam members have been bonded with each other by the shape (mesh apperance) of overlapping two oblique lines.

The rotation angle that Figure 23 (a) illustrates hinge is that 10 open angles of spending, opening and closing casing 70 are 0 degree.Usually, under this state, also keep cam engagement even without above-mentioned protuberance 152,153, the first cam members 106 and second cam member 108.The rotation angle that Figure 23 (b) illustrates hinge is that 0 open angle of spending, opening and closing casing 70 is-10 degree.Under this state, the protuberance 152,153 of above-mentioned first cam member 106 engages with first inclined plane part 136,136 of second cam member 108 respectively, keeps cam engagement.Yet in the occasion that does not have above-mentioned protuberance 152,153, first cam member 106 falls into from the wall portion 135,135 of second cam member 108, is under the state of 0 degree at the open angle that opens and closes casing 70, only can guarantee the surplus about 10.

Figure 23 (c) illustrates the rotation angle of hinge and spends for-20 for the open angle of-10 degree, switching casing 70.Under this state, above-mentioned protuberance 152,153 falls into from the wall portion 135,135 of second cam member 108.Yet, by protuberance 152,153 being set, close under the state of (closing angle is 0 degree) will opening and closing casing 70 at above-mentioned first cam member 106, at first cam member 106 from guaranteeing the surplus of the angles of 20 degree before second cam member 108 comes off.

For hinge means 102 in the alignment error of casing or consume the skew that produces etc., to open and close under casing 70 closing state, first cam member 106 may produce skew with respect to the engagement positio (rotation angle) of second cam member 108 of hinge means 102.To this, can guarantee 20 surpluses of spending at rotation angle by the protuberance 152 of above-mentioned first cam member 106, so, safety and stable use that can guarantee hinge means 102.

Below, coughing up the rattle away when switching that opens and closes casing 70 is described coughed up the noise countermeasure of rattling away.

Above-mentioned hinge means 102 is a turnover hinge, when the open position that opens and closes casing 70 passes through the overturn point (top 137) of hinge means 102, after this by putting aside cam member is rotated, open and close the action that casing is automatically opened in the rebounding force of the helical spring 10,11 of hinge means 102.

For this reason, when the switching casing is opened and closed, top 137 with second cam member 108 is a separation, though the power that 106 pairs second cam members 108 of first cam member apply also is the power that second cam member 108 puts on housing 12, and the effect of this power counter-rotating.For this reason, in the occasion that above-mentioned retaining member 109 is not set, press slip protuberance 143,143 that mated condition is contained in the slit that is engaged in housing 12 62,62 of second cam member 108 in the housing 12 and be pushed to the situation counter-rotating of side's side of slit before this, pushed towards opposition side, the impact in the time of thus produces to cough up to rattle away coughs up the noise of rattling away.

To this, in this embodiment, by above-mentioned retaining member 109 being installed with above-mentioned helical spring 10 chimeric and incorporate states, this retaining member 109 is accommodated by the state that gently is pressed in the housing 12, in addition, the slip protuberance 148,148 of retaining member 109 is embedded into slit 62,62 by the state very close to each other that gently is pressed into.For this reason, during switching, first cam member 106 is by above-mentioned overturn point, even second cam member 108 puts on the effect counter-rotating of the power of housing 12, second cam member 108 also remains in retaining member 109 and retaining member 109 connects airtight in housing 12, so, do not take place above-mentioned cough up to rattle away cough up the noise of rattling away.

On the other hand, be contained in second cam member 108 of housing 12 in the occasion that above-mentioned retaining member 109 is not set pressing mated condition, when the effect of above-mentioned power counter-rotating, by the gap between the interior perimembranous of the sidepiece of second cam member 108 and housing 12 feasible when both contact, cough up to rattle away cough up the noise of rattling away.To this, also since the retaining member 109 that keeps above-mentioned second cam member 108 with respect to housing 12 by gently be pressed into, state very close to each other is chimeric, so, and 12 also not skews of housing, above-mentioned cough up to rattle away cough up the noise of rattling away and do not take place.

Like this, second cam member 108 is actively tied in housing 12, coughs up the noise of rattling away but prevent effectively by the retaining member 109 that keeps it that coughing up rattles away.In addition, owing to can not rock between the member in the hinge means 102, metal construction is not in contact with one another, so the durability of device improves.

Though above-mentioned cough up to rattle away cough up the reason that there is hinge means 102 self in the noise of rattling away, the following describes the countermeasure of the occasion of causa essendi between hinge means and casing.

Above-mentioned first cam member 106 is outstanding from hinge means, and the hole portion that it is fitted to the casing of side's side uses.Usually, cam member is produced in batches, but some errors may take place the dimensional accuracy of products of manufacturing (MIM method for making etc.).Error at this moment causes first cam member 106 to be fitted to the occasion of the hole portion of casing not according to the state that gently is pressed into, little clearance takes place between the two, shake between the two when casing rotates opening and closing, may cough up to rattle away in the position of above-mentioned overturn point etc. and cough up the noise of rattling away.

For this reason, in above-mentioned hinge means 102, above-mentioned stopper element 107 is fitted to above-mentioned first cam member 106, installs by incorporate state.Here, the stopper element 107 and first cam member 106 are not provided with difference in shape especially, but when being embedded into casing, by the error of prominent bar 129,129 free sizes of being located at plastic stopper element 107, can guarantee the form that gently is pressed into often.

In addition, stopper element 107 so the error of product precision is few, by this point, also must be integrated into first cam member 106 by making stopper element 107 owing to be synthetic resin system, can guarantee gently to be pressed into the form in the hole portion of casing.

Therefore, in above-mentioned hinge means 102 that above-mentioned first cam member 106 is chimeric integrated with stopper element 107, so, can accommodate these members by the state of the hole portion that gently is pressed into casing, can prevent from that coughing up between hinge means 102 and casing from rattling away to cough up the noise of rattling away.

Figure 24 relates to the chimeric form of above-mentioned first cam member 106 and above-mentioned stopper element 107, and the first cam member 106a and the stopper element 107a of another form is shown.This first cam member 106a is the shape of the extrusion position of two fastening protuberance 118a, 118a from the biased past axis direction of peripheral part.In addition, the central part at each fastening protuberance 118a, 118a forms projection 118b, 118b respectively outwardly.On the other hand, at the base portion 107b of stopper element 107a, the shape roughly same with (with fastening protuberance 118a) forms above-mentioned fastening protuberance 118a, the immersible recess 126a of 118a, 126a at the top and the bottom of the 128a of hole portion periphery.

Recess 126a, the 126a of above-mentioned stopper element 107a is the form of outer direction side obturation, so, become above-mentioned fastening protuberance 118a, 118a and submerge with connecting airtight to the chimeric form of the interior Zhou Quanti of recess 126a, 126a.For this reason, according to the chimeric form of above-mentioned first cam member 106a and stopper element 107a, be difficult to rock in both chimeric position generations, in addition, durability is also good.

When the mobile phone that above-mentioned hinge means 102 has been installed opens and closes with respect to 72 pairs of switching casings 70 of main body casing, hinge means 102 actions, the engagement lugs 122 of first cam member 106 carries out moving in the rise and fall of the engagement ramp portion 134 of second cam member 108 repeatedly.When opening and closing casing when opening, the operator opens as opening and closing casing 70 slightly, then engagement lugs 122 arrives the top 137 (overturn point) of second cam member 108, engagement lugs 122 is from here along second inclined plane part 138 descend (second cam member 108 and retaining member 109 slided in the external housing 12 and moved this moment), accompany therewith, open and close the direction application of force that casing 70 is opened towards making, open and close casing 70 and automatically open.

This overturn point is set at opens positions about 20 degree～30 degree with opening and closing casing 70, being benchmark here, to the hinge means power (counter-rotating) that rotates.In addition, engagement lugs 122 is via the 3rd inclined plane part 139, descend along the 4th inclined plane part 140, position in the way that arrives bottom 141 (opening and closing the position of open angle 165 degree that casing 70 opened), by the mutual stop mechanism of casing open mode is stopped, keeping and the fixing casing 70 that opens and closes at this operating position.

When will opening and closing casing 70 when closing, the operator makes and opens and closes casing and close mobilely, and this moment, the engagement lugs 122 of first cam member 106 rose along the 4th inclined plane part 140,137 moves towards the top from the 3rd inclined plane part 139, second inclined plane part 138.Under this state, second cam member 108 and retaining member 109 be compression helical spring 10,11 on one side, towards housing 12 slide inside move on one side.In addition, when the front end 125 of the engagement lugs 122 of first cam member 106 surpasses top 137, engagement lugs 122 arrives first inclined plane part 136, elastic force by helical spring 10,11 descends along first inclined plane part 136, position switching casing 70 overlaps with main body casing 72 in its way, keeps closed condition.

When the closing of above-mentioned switching casing 70 or under the hold mode when open, the engagement lugs 122 of above-mentioned first cam member 106 is kept towards the very strong state of the attraction force of engagement ramp portion 134 by second cam member 108, positively keep to open and close casing 70 with respect to the closed condition of main body casing 72 with can carry out the open state of telephone operation etc.For this reason, open and close casing 70 in off position or operating position can not rock.

Therefore, according to the hinge means of second mode of execution and the mobile phone of this hinge means of use, the opening operation of switching casing is simple and can obtain wide open angle, so operation convenience is also good, in addition, rocking that member is mutual is prevented, and do not cough up the different sounds such as coughing up the noise of rattling away of rattling away during operation, so, usage is good, in addition, can not rock between the member in the hinge means, metal construction is not in contact with one another, so the durability of device improves.In addition, prolonged the end of first cam member, so, can not throw off and locked from the wall portion of second cam member, can carry out reliable cam engagement in whole cam engagement scope, can guarantee safe and stable action.

Below, the 3rd mode of execution is described with reference to the accompanying drawings.

Figure 26 relates to mode of execution, and the perspective exploded view of the hinge means 202 that is used for folding mobile phone is shown.The member that constitutes this hinge means 202 is first cam member 206, stopper element 107a, second cam member 208, retaining member 109, helical spring 10,11, housing 12, E ring 114, reaches axis body 116.About with the identical member of member of above-mentioned first mode of execution or second mode of execution, adopt identical symbol here, omit its detailed explanation.

In above-mentioned member, constitute the cam mechanism of hinge means (turnover hinge) by first cam member 206 and second cam member 208.In addition, above-mentioned mobile phone has the above-mentioned switching casing 70 that is connected with above-mentioned hinge means 202 by aforementioned body casing 72.This hinge means 202 also can be used for folding portable sets such as portable game machine except mobile phone.

Above-mentioned first cam member 206 and second cam member 208 all are made of stainless steel (SUS), can use MIM (metal injection moulding), steel metallic material such as (SPCC) in addition.In addition, first cam member 206 and second cam member 208 are implemented surface treatments such as non-electrolysis Ni plating.Above-mentioned stopper element 107a and retaining member 109 all are made of POM resin synthetic resin materials such as (polyoxymethylene).

Such as shown in figure 27, above-mentioned first cam member 206 has the base portion 220 in ellipticity cross section, and the hole portion 210 of the circle that connects base portion vertically is set at the center of this base portion 220.In the table side of base portion 220, form outer engagement protuberance 222 at the two positions of the long dimension side of base portion 220 by circular-arc (plane) with the axle centres of base portion, in addition, engagement lugs 223 in the center opposition side with this outer engagement protuberance 222 forms.These outer engagement protuberances 222 and interior engagement lugs 223 have acute angle-shaped front end 224,225 ground respectively and form from base portion is outstanding, and these front ends 224,225 are for slightly with the shape of fillet.

The inclined plane shape of above-mentioned outer engagement protuberance 222 forms the inclined plane part 226 of same tilt shape respectively for being the bilateral symmetry shape at center with front end 224 in the both sides of front end 224, the shape of each inclined plane part for tilting to begin to slow down from middle position.

Engagement lugs 223 is dwindled shape that (central angle identical) obtain around axle center Rotate 180 degree (180 degree phase difference) back towards the axle center for making outer engagement protuberance 222 in above-mentioned.In addition, axial height does not change, and the height of each front end 224,225 is identical.For this reason, the inclined plane shape of interior engagement lugs 223 forms the inclined plane part 228 of same tilt shape respectively for being the bilateral symmetry shape at center with front end 225 in the both sides of front end 225, the shape of each inclined plane part for tilting to begin to slow down from middle position.

At the dorsal part of above-mentioned base portion 220, form the shape of engagement lugs 218,218 respectively for centrosymmetric two positions in the long dimensional directions of base portion.These engagement lugs 218,218 are respectively from the end of base portion 220 in axially outstanding shape.Central part in each engagement lugs 218,218 forms projection 219,219 respectively outwardly.

In addition, form smooth chimeric facially 212,212 in the bi-side of the short dimensional directions of base portion 220, in addition, form circular-arc outer circumferential surface section at the position of the long dimension side of base portion 220.

As shown in figure 28, above-mentioned second cam member 208 has the ring-type base portion 230 that forms circular hole portion 233 in central authorities, and at this ring-type base portion 230, above-mentioned first cam member 206 carries out the engagement ramp portion of cam engagement and slip at the inside and outside bilayer that forms.

As this engagement ramp portion, axial table side at ring-type base portion 230, form the circular outer engagement inclined plane part 234 that the outer engagement protuberance 222 of first cam member 206 carries out cam engagement and slip by circle with this centres, in addition, the interior engagement lugs 223 that forms first cam member 206 with circular concentric in the inboard of this outer engagement inclined plane part 234 is carried out the circular interior engagement ramp portion 236 of cam engagement and slip.

Above-mentioned outer engagement inclined plane part 234 forms from ring-type base portion 230 in the axial shape at outstanding 2 tops 242,242 side by side, forms the first paddy portion 240 between these tops, forms the second paddy portion 241 in the position that is centrosymmetric with this first paddy portion 240.First inclined plane part 244 of the rising of formation from this first paddy portion 240 to each top 242, second inclined plane part 246 of long decline that tilts with straight line shape from each top, and this second inclined plane part 246 of rake ratio steeper anxious, tilt facial 248 to the 3rd of the second paddy portion 241.

The outer engagement inclined plane part 234 of this ring-type is the shape with respect to the center line symmetry of the first paddy portion 240 of connection and the second paddy portion 241, for this reason, outer engagement inclined plane part 234 has 2 slip surfaces that rotation angle is the shape of 180 symmetries of spending, the direction of rotation of these slip surfaces, and characteristic is identical.Only use the either party in above-mentioned 2 slip surfaces during the hinge means action.

Engagement ramp portion 236 is the form that is located at the inboard (center axis) of outer engagement inclined plane part 234 in above-mentioned.The inclined plane shape of engagement ramp portion 236 dwindles the shape of (central angle is identical) for making outer engagement inclined plane part 234 Rotate 180 degree (phase differences of 180 degree) back in being somebody's turn to do towards the axle center.For this reason, the inclined plane shape of interior engagement ramp portion 236 forms 2 tops 252,252 from the outstanding side by side shape of ring-type base portion 230, and between these tops, the first paddy portion 250 forms the second paddy portion 251 respectively in the position that is centrosymmetric with this first paddy portion 250.

First inclined plane part 254 of the rising of formation from this first paddy portion 250 to each top 252, second inclined plane part 256 of long decline that tilts with straight line shape from each top, and this second inclined plane part 256 of rake ratio steeper anxious, tilt facial 258 to the 3rd of the second paddy portion 251.

Interior engagement ramp portion 236 and outer engagement inclined plane part 234 are same, and having rotation angle is 2 slip surfaces of the shape of 180 symmetries of spending, the direction of rotation of these slip surfaces, and characteristic is identical.Only use the either party in above-mentioned 2 slip surfaces during the hinge means action.

Usually, the hinge means basis is in the difference of the installation direction of the joint of mobile phone, and sense of rotation is overturn, and the slip surface symmetry of cam member, so, need two types, but the hinge means 202 of this mode of execution has shape symmetry and the identical slip surface of characteristic, so, no matter all can use in which sense of rotation,, can install in any direction for this reason, be one type and get final product by a kind of hinge means.

In addition, at the axial dorsal part of above-mentioned ring-type base portion 230, axially giving prominence to formation fastening protuberance 231,231 respectively at the two positions that the hole portion 233 about ring-type base portion 230 is centrosymmetric.In addition, in the bi-side of ring-type base portion 230 (with the direction side of the line quadrature that is connected two fastening protuberances 231,231), form the slip protuberance 243,243 that engages and slide with housing 12 respectively.

The shapes of above-mentioned retaining member 109, stopper element 107a and above-mentioned axis body 116 etc. are identical with the explanation of carrying out at above-mentioned second mode of execution etc.

Figure 29 (a) illustrates the state that stopper element 107a is fitted to the back of above-mentioned first cam member 206.This embeds the fastening protuberance 218,218 of first cam member 206 respectively and it is integrated at recess 126a, the 126a of stopper element 107a as Figure 26 also illustrates.The external diameter (periphery) identical (or same degree) of the external diameter of this first cam member 206 (periphery) and stopper element 107a does not have special difference except the prominent bar 129 in each bight of being located at stopper element 107a.

Figure 29 (b) is illustrated in the state of the chimeric retaining member 109 in back of above-mentioned second cam member 208.The fastening protuberance 231,231 that embeds second cam member 208 at the recess 146,146 of retaining member 109 respectively is integrated with it.Here, the profile of retaining member 109 (shape of the part that contacts with on every side housing 12) is than the formation of enclosing the land of the profile big of second cam member 208.

Here, the profile of second cam member 208 forms has the size that is contained in gap in the housing 12, and the profile of retaining member 109 forms by the state that gently is pressed into and is contained in size in the housing 12.In addition, the width of the slip protuberance 148,148 of retaining member 109 form with the groove width identical (or same degree) of the slit 62,62 of housing 12, slip protuberance 148 can be chimeric by the state very close to each other that gently is pressed into.The width of the slip protuberance 243,243 of second cam member 208 forms narrowlyer than the groove width of slit 62, has gap (play) between the two.

When the above-mentioned hinge means 202 of assembling, identical with above-mentioned hinge means 102, be omitted in the explanation here.The perspective view of the hinge means 202 that Figure 30 (a) has assembled for expression, Figure 30 (b) illustrates the section of hinge means 202.

This hinge means 202 is chimeric with housing 12 with the retaining member 109 and second cam member 208, their unitary rotation, and in addition, first cam member 206 is carrying out relatively rotating with respect to second cam member 208 under the state of cam engagement with second cam member 208.In addition, stopper element 107a and first cam member 206 unitary rotation chimeric with first cam member 206.

On the other hand, by helical spring 10,11 elastic force pushes first cam member 206 and second cam member 208 makes it become the state of mutual crimping, along with relatively rotating of first cam member 206 and second cam member 208, carry out the outer engagement protuberance 222 of first cam member 206 repeatedly, 222 in the rising of the outer engagement inclined plane part 234 of second cam member 208 with descend and move, meanwhile, the interior engagement lugs 223 of carrying out first cam member 206 repeatedly is in the rising of the interior engagement ramp portion 236 of second cam member 208 and descend and move, and forms cam mechanism.

Above-mentioned second cam member 208 with retaining member 109 along with the relatively rotating of first cam member 206, move back and forth vertically in housing 12, the slip protuberance 148,148 of its slip protuberance 243,243 and retaining member 109 all slides mobile by the state that engages with the slit 62,62 of housing 12 vertically.Like this, hinge means 202 makes first cam member 206 and stopper element 107a relatively rotate with respect to housing 12 (second cam member 208) by above-mentioned cam mechanism.

Above-mentioned first cam member 206 and second cam member 208 relatively rotate, and can obtain same action effect as cam mechanism by making two cam members state in opposite directions change allocation position on the formation.

Certainly, even do not use above-mentioned stopper element 107a, retaining member 109, also not can to two cam members of above-mentioned first cam member 206 and second cam member 208 mutually the cam engagement and the effect of (not needing each fastening protuberance) produce any obstacle, given play to function as linkage.

In addition, above-mentioned hinge means 202 is by being installed on clamshell phone shown in Figure 6 with the same program of the explanation of above-mentioned first mode of execution.Under the state of switching casing 70 of mobile phone of having opened (165 ° of open angles), the operator converses and key operation etc.

Below, the rotational characteristic of above-mentioned hinge means 202 is described.

Figure 31 (a)～(d) be illustrated in the mobile phone that hinge means 202 has been installed open and close casing 70 with respect to each open angle position of main body casing 72, first cam member 206 is with respect to the position relation of second cam member 208 of hinge means 202.

This figure (a)～(d) is respectively the unfolded drawing that plane earth is opened the cam face of the outer engagement inclined plane part 222 of the cam face of the outer engagement inclined plane part 234 of second cam member 208, interior engagement ramp portion 236 and first cam member 206, interior engagement ramp portion 223.

Among the figure, the part that more is in the right side than the central part (ordinate) of each cam member 206,208 is outer engagement inclined plane part 234, outer engagement protuberance 222, and the left side of each cam member is interior engagement ramp portion 236, interior engagement lugs 223.The transverse axis of the unfolded drawing of each cam face is represented angle, and the rotation angle of the outer engagement inclined plane part 234 of second cam member 208 is in the scopes of 0 degree～180 degree, and the rotation angle of interior engagement ramp portion 236 is represented the scopes of 0 degree～180 degree.

The outer engagement inclined plane part 234 of second cam member 208 and interior engagement ramp portion 236 are rising behind top 242 (252) along first inclined plane part 244 (254) slightly from the first paddy portion 240 (250) respectively, up to the second paddy portion 241 (251), second inclined plane part 246 (256) of the straight line shape that setting descends from the top and, inclination steep anxious three inclined plane part 248 (258) continuous with this second inclined plane part.When opening switching casing 70 slightly from closed position, each engagement lugs of first cam member 206 descends along each inclined plane part by the top 242 (252) (overturn point) of second cam member, accompanies therewith, opens and closes casing 70 and automatically opens.

Above-mentioned second inclined plane part 246 (256) is long inclined-plane, and the 3rd inclined plane part 248 (258) is the inclined-plane of about 1/4 weak point of second inclined plane part.The 3rd inclined plane part 248 (258) and first inclined plane part 244 (254) improve the attraction force of first cam member, strengthen the fully open position of switching casing 70 and the confining force of closed position, so the angle of inclination is more anxious than second inclined plane part 246 (256) respectively.

Be everlasting during respectively with the outer engagement inclined plane part 234 of second cam member 208 and interior engagement ramp portion 236 same angle and height and position of the outer engagement protuberance 222 of first cam member 206 and interior engagement lugs 223 carries out cam engagement.

The open angle that Figure 31 (a) expression opens and closes casing 70 is the closed condition of 0 degree.At this moment, the front end 224 (225) of the outer engagement protuberance 222 of first cam member 206 (interior engagement lugs 223) is in the way of first inclined plane part 242 (252) of outer engagement inclined plane part 234 (interior engagement ramp portion 236) of second cam member 208.Under this state, the direction that is descended along first inclined plane part 242 (252) of second cam member 208 in each engagement lugs that makes first cam member 206 by the elastic force of spring component 10,11 is promptly closed the rotatory force of the directive effect hinge means 202 that opens and closes casing 70, opens and closes maintenance of casing 70 with rocking.

The open angle that Figure 31 (b) expression opens and closes casing 70 is the state of 25 degree.At this moment, the front end 224 (225) of each engagement lugs of first cam member 206 is in the top 242 (252) of second cam member 208.In this position, hinge is in overturn point, when the front end 224 (225) of first cam member 206 passes through, elastic force by spring component 10,11, front end 224 (225) is descended with the stronger impetus along each inclined plane part of second cam member 208, simultaneously, open and close casing 70 and automatically carry out opening action.

The open angle that Figure 31 (c) expression opens and closes casing 70 is the state of 90 degree.At this moment, the front end 224 (225) of first cam member 206 opens and closes casing 70 and is in the way of automatic opening action along in the process of second inclined plane part, 246 (256) declines of second cam member 208.

Figure 31 (d) expression opens and closes the state that casing 70 standard-sized sheets, open angle are 165 degree (stop position that is formed by the stop mechanism of casing).At this moment, the front end 224 (225) of first cam member 206 is in the way of the 3rd inclined plane part 248 (258) of second cam member 208, the direction that is descended along the 3rd inclined plane part 248 (258) at first cam member 206 by the elastic force of spring component 10,11 is promptly opened the rotatory force of the directive effect hinge means 202 that opens and closes casing 70, opens and closes maintenance under the state of opening on casing 70 standard-sized sheets ground making with rocking.

When operating handset, when the relative slightly main body casing 72 of switching casing 70 is opened, the elastic force of front end 224 (225) the resistance spring components 10,11 of first cam member 206 rises along first inclined plane part of second cam member 208, arrives top 242 (252).In addition, when the front end of first cam member 206 arrives second inclined plane part 246 (256) by the top, stronger elastic force (position by spring component 10,11 at the top, helical spring compresses the biglyyest) front end is descended on one side in the slip of second inclined plane part on one side, first cam member 206 automatically rotates (relatively rotating) with respect to second cam member 208, opens and closes casing 70 and automatically opens.

The front end of first cam member 206 arrives the 3rd inclined plane part 248 (258) from second inclined plane part, when the open angle of the switching casing 70 in the neutral position of the 3rd inclined plane part has arrived the position of 165 degree, open and close casing 70 by being located at and the stop mechanism of 72 of main body casings stops opening action, open and close casing 70 and kept in this position.Like this, the operator can by a hand will open and close the operating position that casing 70 is opened to open angle 165 simple to operately, can converse in this position.

,, form the shape of the first paddy portion 240 (250) that is provided with at second cam member 208 here, be described below at hinge means 202.The mobile phone that this hinge means 202 has been installed is when opening and closing casing 70 when in the closed position, and the front end 224 (225) of first cam member 206 is in along the front of the first paddy portion 240 (250) in the way that first inclined plane part 242 (252) of second cam member 208 descends.

In this occasion, even for example make front end 224 (225) occasions along the first inclined plane part landing of first cam member 206 in the lax grade by the mounting portion of hinge means 202, this front end also stops and being kept in the first paddy portion 240 (250).For this reason, first cam member of hinge means 202 not locked (opening and closing casing sinks into and can not open and close) can be guaranteed the safety of hinge means 202 and stable use.

Noise countermeasure when in addition, above-mentioned hinge means 202 uses buffer components such as retaining members 109 or stopper element 107a to implement to open and close the switching of casings 70.About the explanation of this noise countermeasure with in the above-described 2nd embodiment the explanation identical, by with retaining member 109 and second cam member 208 chimeric and integrated the state installation, thereby second cam member 208 is remained on retaining member 109, and retaining member 109 closely contacts at housing 12, so, second cam member 208 and 12 of housings do not take place above-mentioned cough up to rattle away cough up the noise of rattling away.

In addition, first cam member 206 is chimeric integrated with stopper element 107a, thus can accommodate these members by the state of the hole portion that gently is pressed into casing, can prevent from that coughing up between hinge means 202 and casing from rattling away to cough up the noise of rattling away.

The mobile phone that above-mentioned hinge means 202 has been installed has been opened the top 242 (252) (overturn point) that front end 224 (225) that the positions of 25 degree make first cam member 206 arrives second cam member 208 opening and closing casing 70, but this overturn point also can be set in the positions of having opened about 20 degree～30 degree with opening and closing casing 70 in addition.

Therefore, according to the hinge means of the 3rd mode of execution and the mobile phone of this hinge means of use, the opening operation of switching casing is simple and can obtain wide open angle, so operation convenience is also good, in addition, rocking that member is mutual is prevented, and do not cough up the different sounds such as coughing up the noise of rattling away of rattling away during operation, so, usage is good, in addition, can not rock between the member in the hinge means, metal construction is not in contact with one another, so the durability of device improves.In addition, first cam member can not lock by relative second cam member, can carry out reliable cam engagement in whole cam engagement scope, can guarantee safe and stable action.

Claims (8)

1. a hinge means connects the main body casing of portable set rotationally and opens and closes casing; It is characterized in that: have housing, metal first cam member, metal second cam member, plastic retaining member, spring component and axis body;

This housing is installed on a side of above-mentioned casing, is the tubular of an end closure;

This first cam member is located at the end outside of above-mentioned housing, is installed in the opposing party of above-mentioned casing, forms engagement lugs respectively at the two positions of base portion;

This second cam member is with can be in the mode that axially is free to slide and can not freely rotate is housed in above-mentioned housing, carry out cam engagement with the engagement lugs of above-mentioned first cam member, can relatively rotate with above-mentioned first cam member, forming the engagement ramp portion that each engagement lugs is carried out cam engagement and slip respectively with these engagement lugs position in opposite directions, forming first inclined plane part until the rising at top, second inclined plane part that descends obliquely from above-mentioned top respectively in each engagement ramp portion;

The profile of this retaining member forms greatlyyer than above-mentioned second cam member, by can be in the inboard of above-mentioned second cam member in the state that endwisely slips and can not gently be pressed into rotationally is housed in above-mentioned housing, with the chimeric and unitary rotation of above-mentioned second cam member;

This spring component is located in the above-mentioned housing, in direction of engagement to above-mentioned first cam member and the above-mentioned second cam member application of force;

This axis body connects the bottom of above-mentioned housing, above-mentioned spring component, above-mentioned retaining member, above-mentioned second cam member and above-mentioned first cam member, connects each member and each member is carried out the axle supporting.

2. a hinge means connects the main body casing of portable set rotationally and opens and closes casing; It is characterized in that: have housing, metal first cam member, metal second cam member, plastic stopper element, spring component and axis body;

This housing is installed on a side of above-mentioned casing, is the tubular of an end closure;

This first cam member is located at the end outside of above-mentioned housing, is installed in the opposing party of above-mentioned casing, forms engagement lugs respectively at the two positions of base portion;

This second cam member is with can be in the mode that axially is free to slide and can not freely rotate is housed in above-mentioned housing, carry out cam engagement with the engagement lugs of above-mentioned first cam member, can relatively rotate with above-mentioned first cam member, forming the engagement ramp portion that each engagement lugs is carried out cam engagement and slip respectively with these engagement lugs position in opposite directions, forming first inclined plane part until the rising at top, second inclined plane part that descends obliquely from above-mentioned top respectively in each engagement ramp portion;

This stopper element is located at the back of above-mentioned first cam member, with the chimeric and unitary rotation of this first cam member, is installed on the opposing party of above-mentioned casing with first cam member;

This spring component is located in the above-mentioned housing, in direction of engagement to above-mentioned first cam member and the above-mentioned second cam member application of force;

This axis body connects the bottom of above-mentioned housing, above-mentioned spring component, above-mentioned second cam member, above-mentioned first cam member and above-mentioned stopper element, connects each member and each member is carried out the axle supporting.

3. a hinge means connects the main body casing of portable set rotationally and opens and closes casing; It is characterized in that: have housing, metal first cam member, metal second cam member, spring component and axis body;

This housing is installed on a side of above-mentioned casing, is the tubular of an end closure;

This first cam member is located at the outside, end of above-mentioned housing, is installed in the opposing party of above-mentioned casing, and the location at base portion forms the outer engagement protuberance, forming interior engagement lugs with its opposing party position in opposite directions respectively;

This second cam member is with can be in the mode that axially is free to slide and can not freely rotate is housed in above-mentioned housing, can relatively rotate with above-mentioned first cam member, form the outer engagement inclined plane part that the outer engagement protuberance of above-mentioned first cam member carries out cam engagement and slip at the ring-type base portion by the circle concentric with it, and the interior engagement lugs that forms above-mentioned first cam member in the inboard of this outer engagement inclined plane part carries out the interior engagement ramp portion of cam engagement and slip, forms first inclined plane part until the rising of pre-portion respectively in above-mentioned each engagement ramp portion, second inclined plane part that descends obliquely from above-mentioned top;

This spring component is located in the above-mentioned housing, in direction of engagement to above-mentioned first cam member and the above-mentioned second cam member application of force;

This axis body connects the bottom of above-mentioned housing, above-mentioned spring component, above-mentioned second cam member and above-mentioned first cam member, connects each member and each member is carried out the axle supporting.

4. a hinge means connects the main body casing of portable set rotationally and opens and closes casing; It is characterized in that: have housing, metal first cam member, metal second cam member, plastic retaining member, spring component and axis body;

This housing is installed on a side of above-mentioned casing, is the tubular of an end closure;

This first cam member is located at the outside, end of above-mentioned housing, is installed in the opposing party of above-mentioned casing, and the location at base portion forms the outer engagement protuberance, forming interior engagement lugs with its opposing party position in opposite directions respectively;

This second cam member is with can be in the mode that axially is free to slide and can not freely rotate is housed in above-mentioned housing, can relatively rotate with above-mentioned first cam member, form the outer engagement inclined plane part that the outer engagement protuberance of above-mentioned first cam member carries out cam engagement and slip at the ring-type base portion by the circle concentric with it, and the interior engagement lugs that forms above-mentioned first cam member in the inboard of this outer engagement inclined plane part carries out the interior engagement ramp portion of cam engagement and slip, forms first inclined plane part until the rising at top respectively in above-mentioned each engagement ramp portion, second inclined plane part that descends obliquely from above-mentioned top;

The profile of this retaining member forms greatlyyer than above-mentioned second cam member, by can be in the inboard of above-mentioned second cam member in the state that endwisely slips and can not gently be pressed into rotationally is housed in above-mentioned housing, with the chimeric and unitary rotation of above-mentioned second cam member;

This spring component is located in the above-mentioned housing, in direction of engagement to above-mentioned first cam member and the above-mentioned second cam member application of force;

This axis body connects the bottom of above-mentioned housing, above-mentioned spring component, above-mentioned retaining member, above-mentioned second cam member and above-mentioned first cam member, connects each member and each member is carried out the axle supporting.

5. a hinge means connects the main body casing of portable set rotationally and opens and closes casing; It is characterized in that: have housing, metal first cam member, metal second cam member, plastic retaining member, spring component and axis body;

This housing is installed on a side of above-mentioned casing, is the tubular of an end closure;

This first cam member is located at the outside, end of above-mentioned housing, be installed in the opposing party of above-mentioned casing, two positions at base portion forms engagement lugs respectively, respectively side's side of the front end of each engagement lugs from base portion to this front end nearby form the wall portion vertical with sense of rotation, at the inclined plane part of the opposing party's side formation from above-mentioned front end to above-mentioned base portion;

This second cam member is with can be in the mode that axially is free to slide and can not freely rotate is housed in above-mentioned housing, carry out cam engagement with the engagement lugs of above-mentioned first cam member, can relatively rotate with above-mentioned first cam member, forming the engagement ramp portion that each engagement lugs is carried out cam engagement and slip respectively with these engagement lugs position in opposite directions, form the wall portion that forms perpendicular to sense of rotation ground from base portion respectively in each engagement ramp portion, from the upper end portion of this wall portion until first inclined plane part of the rising at top and second inclined plane part that descends obliquely from above-mentioned top;

The profile of this retaining member forms greatlyyer than above-mentioned second cam member, by can be in the inboard of above-mentioned second cam member in the state that endwisely slips and can not gently be pressed into rotationally is housed in above-mentioned housing, with the chimeric and unitary rotation of above-mentioned second cam member;

This spring component is located in the above-mentioned housing, in direction of engagement to above-mentioned first cam member and the above-mentioned second cam member application of force;

This axis body connects the bottom of above-mentioned housing, above-mentioned spring component, above-mentioned retaining member, above-mentioned second cam member and above-mentioned first cam member, connects each member and each member is carried out the axle supporting.

6. according to claim 1,3,4 or 5 described hinge meanss, it is characterized in that: be provided with plastic stopper element at the back of carrying out above-mentioned first cam member of cam engagement with above-mentioned second cam member, chimeric and the unitary rotation of this stopper element and this first cam member is installed on the opposing party of above-mentioned casing with first cam member.

7. according to any one described hinge means in the claim 1～5, it is characterized in that: above-mentioned housing is made of metal.

8. hinge means according to claim 7 is characterized in that: these housings and axis body are carried out surface treatment by the low metal of resistance respectively, guaranteed the energising between each member.

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