JP2000161336A - Pop-up hinge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize the low cost by reducing the number of components and the man-hours of assembly, and miniaturize the whole body of the structure, by using the same member for the expansion locking means and the folding locking means. SOLUTION: Both the expansion locking means and the locking means of a pop-up hinge are the structure consisting of a cam means 15 housed in a cylinder 14 and locked to a shaft 12, and a cam groove formed on the same surface in the cylinder 14, and the cam groove on the former side is the cam groove for expansion locking cam groove, while the cam groove on the latter side is the cam groove for locking. In this case, while the cam 15 is pressed to the inner surface side of the cylinder 14 constantly by the energizing force in the axial direction of a twisting spring 16 to be the expansion force energizing means, it is energized in the direction to expand both the main body and the lid connected by the hinge by the energizing force around the axis.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pop-up in which a main body and a lid are foldably connected, and both can be developed by one-touch operation with a button operation. About hinges.

[0002]

2. Description of the Related Art In such a hinge, since a lock button and a release button are coaxial with each other, there is an effect that a degree of freedom in design is increased as compared with a structure in which a lock button is provided in another place. In particular, it has been used as a hinge for a foldable mobile phone. For example, JP-A-8-29853
The hinge described in Japanese Patent Publication No. 8 is a device that pivotally couples a lid on the receiving unit side and a main unit on the transmitting unit side. The telephone can be unfolded by one-touch operation by using a button when used, and folded after use. It was stored together.

[0003] This conventional pop-up hinge will be described with reference to FIG. The hinge includes cylindrical bodies 131 and 132 projecting from lid 100 and cylindrical body 13 projecting from main body 200.
The expansion force urging means 140 and the expansion locking means 150 are provided axially on one side of the inside in which 3, 134 are alternately connected, and the folding locking means 160 and the locking release means 170 are formed axially on the other side. It was configured to be stored.

[0004] Here, the deployment locking means 150 is mounted on the shaft 1.
51, a cylindrical portion 152, a first boss 153, a second boss 154, and a spring 155. A deployment force urging means 140 is wound around the outer periphery of the second boss 154, and both ends thereof are respectively connected to the cylindrical portion 152. It was fixed to the second boss 154.
The cylindrical portion 152 is a cylindrical member that accommodates the first boss 153 so as to be movable in the axial direction. The cylindrical portion 152 is disposed on the inner periphery of the main body-side cylindrical body 133 so as to be rotatable around the axis. A key groove 152b for engaging with a key 153b provided on the first boss 153 was formed on the periphery. The first boss 153 has a shaft hole with a step at the center and a shaft portion 1 of the shaft 151.
The spring 155 wound around the 51b is loosely fitted and housed in a compressed state between the spring 155 and the shaft fixing portion 151a. In addition, a concave portion 153a that engages with the convex portion 154a of the second boss 154 was formed at the tip of the first boss 153.

The second boss 154 has a stepped shape. A shaft 151b penetrates a shaft hole formed at the center of the second boss 154, and the tip of the second boss 154 is locked by a fixing E-ring 156. Two key grooves 154b are formed in the outer periphery of the second boss 154 in the axial direction, and are engaged with the keys 132a protruding from the inner surface of one lid-side cylinder 132. For this reason, the second boss 154 can move only in the axial direction along the key groove 154b in the lid-side cylinder 132, and does not rotate around the axis. The convex portion 154a of the second boss 154 and the concave portion 153a of the first boss 153 are
0 was formed in the direction of engagement when deployed at a certain angle. The deployment force urging means 140 is connected to the first boss 1
A torsion spring held between 53 and the second boss 154 always urges the lid 100 and the main body 200 in the developing direction. Also, the first boss 153 becomes the second boss 15 due to the presence of the spring 155 wound around the shaft portion 151b.
4 was always pressed.

On the other hand, the folding locking means 160
1 and a fourth boss 162 that engages with the shaft 171b of the unlocking button 171 penetrating the center of these. The button portion 171a of the lock release button 171 is disposed on the other end side of the hinge, and the shaft portion 171b has a stepped shape and a spring 172 is wound around a large diameter portion on the outer periphery. Two key grooves 1 are provided on the outer periphery of the fourth boss 162 in the axial direction.
62b was formed, and was engaged with a key 134a protruding from the inner surface of one main body side cylinder 134. Therefore, the fourth boss 162 can move only in the axial direction along the key groove 162b in the main body side cylindrical body 134, and does not rotate in the direction around the axis.

The third boss 161 is rotatable in the lid-side cylindrical body 131. A stepped shaft hole having a small diameter at the tip end is formed in the center portion, and is engaged with the shaft hole. Release button 1
The 71 shaft portion 171b was designed to pass through. A projection 162a of the fourth boss 162 is provided at the tip of the third boss 161.
And a concave portion 161a that engages with. 4th boss 1
Reference numeral 62 is provided in contact with the third boss 161, and a stepped shaft hole having a small diameter at the end is formed at the center, and the shaft hole 171 b of the lock release button 171 is formed in the shaft hole. The diameter portion penetrates, and the large diameter portion of the shaft portion 171b comes into contact with the step formed in the shaft hole. An E-ring 173 for fixing is fitted to the tip of the shaft 171b so that the shaft 171b does not come off. Also the fourth boss 16
The second convex portion 162a and the concave portion 161a of the third boss 161 are
It was formed in a direction to engage when folded.

The spring 172 is disposed at a large diameter portion of the stepped hole of the third boss 161, and the step portion and the button portion 171 are provided.
a, the lock release button 171
And the third boss 161 are always biased in a direction to be separated. As a result, the lock release button 171 can move in the hinge as a whole in the axial direction, and can repeatedly press the button portion 171a from outside toward the center with elasticity.

In the conventional telephone using a pop-up hinge having such a configuration, when the lid 100 is folded via the hinge against the urging force of the deployment force urging means 140, the convex portion 162a of the fourth boss 162 and the second protrusion are formed. Recess 1 of three bosses 161
61a is engaged while being pressed by the urging force of the spring 172, so that both are locked in a folded state.

When a telephone is used, when the button 171a of the unlock button 171 is pressed, the shaft 171b moves toward the center against the spring 172. Press the step of the shaft hole of 162,
Since the engagement of the unevenness is released, the cover 100 is automatically deployed by rotating by the restoring force of the torsion spring of the deployment force urging means 140. At this time, when the lid 100 is opened to a predetermined deployment angle, the projection 154a of the second boss 154 and the recess 153a of the first boss 153 that are in contact with each other while being pressed by the spring 155 are engaged. The configuration was fixed.

[0011]

As described above, in the conventional pop-up hinge, the unfolding and locking means 150 and the folding and locking means 160 are constituted by separate members. That is, as the deployment locking means 150, the concave portion 1
53a are formed, and the projections 154a of the second boss 154 are formed on the
On the other hand, also as the folding locking means 160, a concave portion 161a is formed at the tip of the third boss 161 and the convex portion 162a of the fourth boss 162 is engaged with this. These concavities and convexities were formed in the direction in which the former was engaged when it was deployed at a certain angle, and in the direction in which it was engaged when the latter was in a folded state.

In order to realize this, the deployment force urging means 1
In addition to the torsion spring 40, a spring 155 that constantly presses the first boss 153 toward the second boss 154 and a spring 172 that urges the lock release button 171 and the third boss 161 in the direction of being always separated are separate. Was needed.

Therefore, even though the conventional pop-up hinge has a configuration in which all the expansion and folding means are housed in a coaxial hinge, as described above, the first boss 153, the second boss 154, the third boss 161, Since the fourth boss 162, the torsion spring, the spring 155, and the spring 172 are required, the number of parts is increased, the size of the entire hinge cannot be reduced, the number of assembling steps increases, and the cost increases.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the conventional pop-up hinge, and the same member can be used for both the deployment locking means and the folding locking means. Another object of the present invention is to provide a uniaxial pop-up hinge that can reduce costs by reducing the number of assembly steps and the size of the entire structure.

[0015]

In order to solve the above-mentioned problem, the pop-up hinge of the present invention is provided with a cam and an inner surface of a cylinder which are both housed in a cylinder and locked to a shaft. The former cam groove is a cam groove for deployment and locking, and the latter is a cam groove for locking and is formed on the same surface in the cylinder. Here, the cam is constantly pressed against the inner surface of the cylinder by the axial biasing force of the torsion spring, which is a deployment force biasing means, and the cam and the lid are connected by a hinge by the biasing force in the direction around the axis. It is always urged to expand.

The torsion spring has one end fixed to the cam and the other end fixed to the cylinder, and the cam is relatively rotatable within the cylinder. Therefore, when only the developing force acts on the cam separated from the cam groove, the cam rotates by a predetermined angle in the developing direction in the cylinder and engages with the developing locking cam groove. Further, when a folding force against the unfolding force acts, it rotates to the locking cam groove and engages with it.

The unlocking means for releasing the locked cam from the cam groove comprises a button movable only in the axial direction, a shaft projecting therefrom, and a cap for supporting the tip of the shaft.
This button is located at one end of the hinge and is rotatably fixed to one of the cylinders protruding from the main body and the lid, and the cylinder constituting the deployment locking means and the locking means is attached to the other cylinder. Fixed. Further, the cylinder has a cap at its tip penetrating around the shaft of the unlocking means, and a torsion spring is fixed between the cap and the cam housed therein. Since the cam is locked to the shaft of the unlocking means, it moves in the axial direction in conjunction with the pressing of the button. Therefore, when the button is pressed, the cam separates from the locking cam groove. Also, since the cam and the button shaft are connected,
The deploying force acting on the cam extends to the main body or the lid via the button, and the folding force acts on the cam via the button.

As described above, the pop-up hinge has the lock releasing means and the opening mechanism coaxially integrated with each other, and when the lock is released, the pop-up hinge can be immediately opened to a designated position within 180 degrees. Further, if the expansion locking cam groove is formed so as to lock at a plurality of expansion angles, for example, 100 degrees, 16 degrees,
It is possible to stop at 0 degrees.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is an exploded perspective view of a foldable mobile phone using a pop-up hinge, and FIG. 2 is an exploded perspective view showing a structure of the pop-up hinge. The foldable mobile phone 1 includes a lid 3 having at least a receiver 2 and a main body 5 having at least a transmitter 4. The lid 3 and the main body 5 are provided with a pop-up hinge 6 and a damper 7.
Are rotatably connected via a. The pop-up hinge 6 and the damper 7 are housed as a uniaxial unit in cylinders 8 and 9 projecting from the main body 5 and a cylinder 10 projecting from the lid 3.

The pop-up hinge 6 includes the lid 3 and the main body 5.
Deployment force biasing means for constantly biasing in the deployment direction, locking means for locking the two in a folded state against this deployment force, and unlocking means for unlocking the locking means. And a deployment locking means for locking the two in a deployed state at a fixed angle. On the other hand, the damper 7 has rotation resistance means for slowing down the opening operation, and reduces the impact at the time of deployment and locking.

The unlocking means includes a button 11 at one end of the hinge, a button 11 movable only in the axial direction with respect to one of the cylinders, in FIG. A part 12 and a cap 13 that supports the tip of the part 12 are provided.

The deploying and locking means extends around the shaft portion 12 and covers the tip with a cap 13 to cover one of the other cylinders.
In FIG. 1, the cylinder 14 is fixed to the lid-side cylinder 10.
And the shaft portion 1 rotatably housed in the cylinder 14.
2 has a cam 15 to be locked. The deployment force urging means is
Both ends are fixed to the cap 13 and the cam 15 and the cam 15
Of the cover 3 and the torsion spring 16 for urging the cover 3 and the main body 5 in the developing direction.

On the inner surface of the cylinder, a cam groove for deployment and locking and a cam groove for locking, which will be described later, are formed. The locking means comprises a cylinder 14 having a locking cam groove and a cam 15 like the deployment and locking means. Is done. When the shaft portion 12 is supported on the cap 13, the pin 17 is inserted from the opposite side so as not to come off.

Four key grooves 11 a are formed in the outer periphery of the button 11 in the axial direction, and are engaged with the keys 8 a protruding from the inner surface of the main body side cylinder 8. For this reason, the button 11 can move only in the axial direction along the key groove 11a in the main body side cylinder 8, and does not rotate in the direction around the axis. The shaft portion 12 has a stepped shape, and a notch portion 12b for locking the cam 15 is formed in the axial direction in front of the outer peripheral large diameter portion 12a.

The cap 13 has a tubular body 13b protruding from the center of a disc-shaped end plate 13a and an eave-shaped plate body 13c from the end.
To protrude. The pin 17 is inserted into the shaft hole 13d of the tube 13b from the back through the small diameter portion 12c of the shaft 12 from the front. A notch 12d is formed in the small-diameter portion 12c from the tip so that insertion into the shaft hole 13d and insertion of the pin 17 are possible. The notch 1 is formed in the eave-shaped plate 13c.
3e, and a protrusion 1 protruding from the outer periphery of the cylinder 14.
4a.

Four keys 14b are formed in the outer periphery of the cylinder 14 in the axial direction, and are engaged with key grooves 10a formed on the inner surface of the lid-side cylinder 10. As a result, the cylinder 14 is interlocked with the rotation of the lid 3, so that the relative angle between the button 11 attached to the main body 5 and the shaft portion 12 and the cam 15 engaged with the shaft portion 12 can be changed. Cap 13
The cylinder 14 to which is attached is abutted and fixed to the bottom 10b of the lid-side cylinder 10. The cylinder 14 has a stepped shape, and has a shaft hole 12d formed in the front-end-side small-diameter portion 14c penetrating the shaft portion 12 and a button 11 slidably mounted on the outer periphery.

The structure of the inner surface of the cylinder will be described with reference to FIGS. A cam groove is formed on the inner surface of the cylinder 14 around the shaft hole 14d, and the cam 15 is in contact with the cam groove. The cam 15 has a projection 15b on a stepped disk 15a rotatable in the cylinder 14, and a grooved shaft hole 15c in the center.
To form The grooved shaft hole 15c is formed in the shaft portion 1 of the button 11.
2 and is fitted with the notch 12b. Stepped disk 15
A torsion spring 16 is in contact with the back surface of a, and the cam 15 is constantly pressed toward the cam groove by the axial urging force. The torsion spring 16 has one end fixed to the cam 15 and the other end fixed to the cap 13, and is a biasing force for rotating the cylinder 14 in the direction in which the lid 3 and the main body 5 are deployed, for example, as shown in FIG. Having.

As shown in FIG. 8, the cam grooves to be fitted with the projections 15b of the cam 15 include a cam groove 18 for deployment and locking and a cam groove 19 for locking, which are formed on the same surface in the cylinder 14. . In this embodiment, the cam grooves and the projections 15b are paired, and their separation angles (about 160 degrees in FIGS. 7 and 8) correspond to each other. One of the cam groove 18 for deployment and locking and the cam groove 19 for locking are also used. In the pop-up hinge 6, the cam 15 is movable in the axial direction together with the shaft portion 12, and is rotatable relative to the cylinder 14 in the direction around the axis.

FIG. 3 shows a state in which the convex portion 15b of the cam 15 is fitted in the cam groove.
Is moved outward by the axial biasing force of the torsion spring 16. Here, when the button 11 is pressed, the cam 15 engaged with the notch portion 12b of the shaft portion 12 moves inward in conjunction therewith, and the convex portion 15b of the cam 15 separates from the cam groove as shown in FIG. . When only the developing force acts on the cam 15 separated from the cam groove, the cylinder 14 automatically rotates in the developing direction by the restoring force of the torsion spring 16. When the projection 15b is rotated to a position where the deployment locking cam groove 18 is engaged,
Since the projections and depressions on the contacting surface are engaged while being pressed by the axial pressing force of the torsion spring 16, the rotation is stopped, and the latch is latched and fixed in the deployed state. When a folding force against the expanding force acts in the expanded state, the projection 15b rotates and stops until the projection 15b and the locking cam groove 19 are engaged.

The projection 15b and the cam groove 1 for deployment and locking are provided.
8. Since the locking cam groove 19 has a gradient in the direction of rotation, the projection 15b can be disengaged from the cam groove if a rotating force acts even in the fitted state, and And its release is performed smoothly. That is, when folding from the unfolded state, if the folding force is applied without pressing the button 11, a rotational force is applied to the cylinder 14, whereby the unfolding locking cam groove 18 pushes the convex portion 15b inward. As a result, the two can be disengaged and folded. In addition, with such a configuration, the hinge is not easily broken even if an unreasonable opening / closing operation is performed.

As described above, the pop-up hinge 6
The lock release means and the open mechanism are coaxially integrated with each other. When the lock is released, the lock release means and the open mechanism can be opened at a stretch to a predetermined deployment angle. Here, if the deployment locking cam groove is formed so as to be locked at a plurality of deployment angles, it can be stopped halfway. This example is shown in FIG. FIG. 9 is a sectional view of another cylinder inner surface. In this cylinder 114, an intermediate cam groove 120 is formed between the deployment locking cam groove 118 and the locking cam groove 119.
It is possible to stop at 0 and 160 degrees.

The cam 15 fitted in the intermediate cam groove 120
When the button 11 is pressed again or the lid 3 is rotated, the convex portion 15b is removed from the cam groove. . If a folding force is applied, it can be folded naturally.

In this embodiment, the pop-up hinge 6 and the damper 7 are separate, but may be integrated, or the damper may not be provided. Further, the pop-up hinge is not limited to the foldable mobile phone, but can be applied to various housings having a lid and a main body.

[0034]

As described above, in the pop-up hinge of the present invention, both the expansion locking means and the locking means
It consists of a cam housed in the cylinder and locked to the shaft and a cam groove formed on the inner surface of the cylinder, so that the same member can be used as well. Cost reduction is achieved by reducing the number of parts and assembly man-hours, and the overall structure is downsized. Can also be realized. Further, since the pop-up hinge according to the second aspect is formed so as to lock the deployment locking cam groove at a plurality of development angles, it is possible to stop the deployment midway.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a foldable mobile phone using a pop-up hinge.

FIG. 2 is an exploded perspective view showing the structure of a pop-up hinge.

FIG. 3 is a sectional view when a pop-up hinge is engaged.

FIG. 4 is a cross-sectional view at the time of pop-up hinge engagement release.

FIG. 5 is a sectional view showing a VV section in FIG. 3;

FIG. 6 is a sectional view showing a section taken along line VI-VI of FIG. 3;

FIG. 7 is a cross-sectional view showing a VII-VII cross section of FIG. 4;

FIG. 8 is a cross-sectional view showing a IIX-IIX cross section of FIG. 4;

FIG. 9 is a sectional view of another cylinder inner surface.

FIG. 10 is an exploded perspective view showing the structure of a conventional pop-up hinge.

[Explanation of symbols]

 3 Lid 5 Main body 6 Pop-up hinge 8 Cylindrical body 10 Cylindrical body 11 Button 12 Shaft part 13 Cap 14 Cylinder 15 Cam 15b Convex part 16 Torsion spring 17 pin

Claims (2)

[Claims] 1. A hinge which is accommodated uniaxially in a cylindrical body projecting from a main body and a lid, respectively, and is rotatably connected to both the main body and the lid so that the hinge can be freely expanded and folded. Inside, a deployment force biasing means for constantly biasing the two in the direction of deployment, a locking means for locking the two in a folded state against this deployment force, and releasing the locking by the locking means In a pop-up hinge provided with a lock releasing means and a deployment locking means for locking the two in a state where they are deployed at a fixed angle, the lock releasing means is provided at one end of the hinge in the axial direction with respect to one of the cylinders. A cylinder that has a button that is movable only, a shaft protruding from the button, and a cap that supports the tip of the button. The cylinder is loosely inserted around the shaft, covers the cap at the tip, and is fixed to one of the other cylinders. Provided, and the deployment locking means It has a cam rotatably housed in the cylinder and locked to the shaft, and a cam groove for deployment and locking formed on the inner surface of the cylinder. The deployment force urging means is interposed between the cap and the cam. A torsion spring is provided, which always presses the cam toward the cam groove for deployment and locking and has both ends fixed to the cam and the cap to urge the two in the developing direction. A pop-up hinge comprising a locking cam groove formed on the same surface as the cam groove. 2. The pop-up hinge according to claim 1, wherein the expansion locking cam groove is formed so as to lock at a plurality of expansion angles.