TWI491810B - Electronic device and tilt hinge thereof - Google Patents

Description

Tilting hinge and electronic device with tilt hinge

The present invention relates to a small electronic device such as a mobile phone, an electronic dictionary, a notebook computer, a personal data assistant (PDA), or a car navigation device, such that the device body of the first casing and the display device of the second casing can be opened to each other. A tilting hinge and an electronic device having the tilt hinge.

In the small electronic device such as the mobile phone, the electronic dictionary, the notebook computer, the PDA, and the car navigation device, the display device of the second casing can open the device body of the first casing by means of an opening device. Hey. The opening device has a tilting hinge that allows the display device to remain stationary at any angle to the device body.

The oblique hinge of the above-described nature is described in Patent Documents 1 to 3 shown below. The tilting hinge comprises a bracket mounted on the body of the device, rotatably supporting the assembly component and mounted on a hinge rod of the display device, movable to the axis of the hinge rod and simultaneously for the hinge rod a fixed friction disc that is rotated and restrained by the assembled component, can be moved to the axis of the hinge rod, can also rotate with a hinge rod, and is mounted on the hinge rod for fixing the friction disc and A plurality of disc springs that are rotated by friction discs in their respective axial directions. The tilting hinge is coupled to the sliding surface of the friction disc to generate a frictional force in the sliding direction, and the frictional torque generated by the frictional force causes the display device to remain stationary at an arbitrary angle to the apparatus body.

Patent Document 1 License No. 3655498

Patent Document 2, License No. 3402317

Patent Document 3, JP-A-2001-12451

The tilt hinges described in Patent Documents 1 to 3 are provided between the handle portion and the fixed friction disk or the hinge bar support portion, between the fixed friction disk and the hinge bar support portion, and between the fixed friction disk and the disk spring. A rotating friction disc is provided, and the necessary frictional moment can be generated by increasing the sliding area between the hinge rod and the assembled component, and the length in the radial direction can be reduced even if the length in the axial direction is increased, thereby being applied to the aforementioned small size. In an electronic device.

However, in recent years, as electronic devices have become smaller and lighter, tilting hinges have to meet this demand. In order to achieve this, the diameter of the friction disc must be reduced while reducing the diameter of the tilting hinge. Therefore, in the case where the frictional area is reduced, in order to obtain the necessary frictional torque, the friction discs are more closely crimped to each other, so it is necessary to A compression spring coil is used as the elastic means. As a result, the length of the tilt hinge is increased in disguise, which is contrary to the demand for miniaturization.

In addition to solving the problems and dilemmas of the aforementioned tilting hinge, the present invention also reduces the size of the hinge and also achieves the miniaturization requirement of reducing the axial length, and further provides a small tilting hinge capable of generating the necessary friction torque.

In order to achieve the above object, a tilt hinge of the first aspect of the invention includes a cylinder, a flange member, a hinge rod and a friction cam mechanism. Wherein the column system is cylindrical and is mounted on one of the first and second housings which are mutually releasable, and has a bottom having a short diameter, and the outer periphery of the column is provided with a pair of rotation-deactivated The rib locking portion. The flange member is disposed on an open end side of the cylinder and is disposed on the other of the first casing and the second casing, and the pair of flanges are provided with a pair of ribs for preventing rotation The locking portion and the length of the flange member is shorter than the cylinder. The hinge rod is protruded from one side of the flange member and rotatably penetrates an axial pivot hole disposed at the bottom of the cylinder body, and a friction washer is embedded at one end of the hinge rod exposed from the pivot hole of the shaft, so that the hinge rod is oriented in the axial direction The movement is limited. The friction cam mechanism is disposed in the cylinder and has a friction function and an adsorption function. Wherein the cylinder is inserted into and locked in the assembly hole on the hinge assembly portion of one of the first housing or the second housing, and the flange member is inserted into and locked to the first housing or the second housing In the assembly hole on the hinge assembly portion of the other of the housings, the friction cam mechanism includes a first cam portion, a cam member and a resilient means, wherein the first cam portion is disposed at the bottom of the cylinder. The cam member slides in the axial direction of the cylinder and is non-rotatably disposed, and is inserted into the hinge rod in the direction of the central axis of the hinge rod. The cam member has a second cam portion, and the second cam portion is disposed on the second cam portion. Relative to one side of the first cam portion. The elastic means is disposed between the second cam portion and the flange member for crimping the first cam portion and the second cam portion to each other.

The tilting hinge according to the second aspect of the present invention, wherein the cam member slides in the axial direction of the cylinder and is non-rotatably arranged to make the convex The wheel member is engaged with the cylinder.

The tilt hinge according to the third aspect of the invention, wherein the convex portion of the first cam portion and the second cam portion has a flat upper surface.

The tilting hinge of the invention of claim 4, wherein the elastic means is a disc spring, an elastic washer or a rubber element.

An electronic device according to the invention of claim 5, which is characterized by comprising the tilting hinge of the first aspect of the invention.

The inclined hinge having the configuration of the first to fourth aspects of the invention of the present invention has a simple configuration of a small number of constituent elements, and a configuration capable of downsizing and diameter reduction, so that the second casing is opposite to the first casing The preset closing angle of the body is closed or the opening angle of the preset opening angle can be made to have an adsorption function, and further, the second housing can be freely used with respect to the first housing. Turn on and stay still.

The electronic device of the fifth aspect of the present invention can be an electronic device that utilizes the advantages of the tilt hinge described in the first aspect of the above patent application.

Hereinafter, embodiments of the tilt hinge and the electronic device of the present invention will be described in detail based on the drawings. Although the electronic device described below is exemplified by an electronic dictionary, the electronic device of the present invention is not limited thereto, and may be a mobile phone, a PDA, a car navigation device, a notebook computer, or other electronic device.

Embodiment 1

1 is an application of the tilt hinge of the present invention, an embodiment of the electronic The dictionary 2 is an enlarged schematic view of the tilt hinge 1 provided in the area A. The electronic dictionary 2 includes a first housing 21 provided with a keyboard portion 21a on the upper surface of the device body and a second housing 22 provided with a display device 22a, wherein the tilt hinge 1 of the present invention supports the first The housing 21 and the second housing 22 are hinges for opening the opening. In the present embodiment, the cylinder 11 of the tilt hinge 1 is fixed to the hinge assembly portion 211 of the first housing 21 of the electronic dictionary 2, and additionally by fixing the flange member 124 of the tilt hinge 1 to the second housing 22 The hinge assembly portion 221 allows the electronic dictionary 2 to open the first housing 21 and the second housing 22 in a mutually open manner. In addition, the column 11 can be modified to the second housing 22, and the flange member 124 can be fixed to the first housing 21.

As shown in FIGS. 1 to 6, the tilt hinge 1 of the present invention comprises a cylindrical body 11 having a bottom portion 112, a flange member 124, a hinge rod 12, a cam member 13, and a plurality of discs. An elastic means 14 formed by the springs 14a-14e, wherein the cylinder 11 and the flange member 124 are configured to be relatively rotatable by the hinge rod 12.

Although the cylinder 11 is presented in an enlarged manner in the drawings, the actual product may be, for example, a cylindrical shape having an outer diameter of less than 5 mm and a length of less than 10 mm and having a short length at the bottom, as shown in FIG. The bottom portion 112 is provided on one side of the cylindrical body portion 111 having the inner surface 114 and the outer surface 115, and the other side is provided with the opening portion 117, and the bottom portion 112 is provided in the central axis direction. A pivot hole 116 on the front end side of the hinge lever 12. Further, the first cam portion 113 and the inner surface side of the bottom portion 112 are integrally formed, and simultaneously act on the second cam portion 133 formed on the cam member 13, Achieve the required functions such as friction torque, hinge action and adsorption action. In order to achieve the aforementioned functions, as shown in FIG. 5, in particular, the first cam portion 113 has a pair of convex portions 1131 and a pair of the above-mentioned portions, which are sandwiched by the shaft pivot holes 116 and have an upper portion which is flat. Similarly, the convex portion 1131 has the shaft pivot hole 116 interposed therebetween, and the bottom portion is flat and a pair of concave portions 1132 which are equally spaced and an inclined portion 1133 from each convex portion 1131 with respect to each concave portion 1132. Further, there is no limitation on the installation position, shape, size, and the like of the convex portion 1131 and the concave portion 1132.

In addition, a pair of opposite positions are formed on the outer surface 115 of the cylinder 11 for making a stoppage when assembling the assembly hole 211 (refer to FIG. 3) of the hinge assembly portion 211, and passing through the outer surface 115 of the cutting cylinder 11 A ridge locking portion 1151 formed in the axial direction. According to this configuration, in addition to the purpose of reducing the diameter of the tilt hinge 1 under the outer diameter of the expanded cylinder 11, it also contributes to miniaturization of the tilt hinge. Further, the column 11 is usually made of sintered metal, which is merely exemplary and is not intended to limit the invention.

The flange member 124 is caulked on one side of the opening portion 117 of the cylinder 11 and has an outer diameter substantially the same as that of the cylinder 11 , and is inserted and locked on the hinge assembly portion 221 of the second casing 22 . In order to prevent the rotation of the inside of the assembly hole 222, the hole 222 is assembled, and a pair of ridge locking portions 126 formed by cutting the outer surface thereof to prevent the rotation in the axial direction are provided at the opposite positions on the outer periphery thereof.

One side of the flange member 124 is convexly provided with a hinge rod 12, wherein the flange member 124 and the hinge rod 12 can be made of integrally formed sintered metal, but the invention is not limited thereto, and can also be, for example, a product of a rotary disc process. Hinge rod 12 There is a main shaft portion 121. As shown in FIGS. 3 and 4, the elastic means 14 and the cam member 13 composed of the plurality of disc springs 14a to 14e are mounted thereon so that the hinge rod 12 is along the central axis of the cylinder 11. The direction is inserted into the inside of the cylinder 11. The front end of the main shaft portion 121 rotatably penetrates through a shaft pivot hole 116 provided at the bottom of the column body 11. Before the protrusion from the shaft pivot hole 116, a friction washer 15 is embedded in the end portion, and a diameter-enlarged fastening portion 128 is formed ( The front end of the main shaft portion 121 is tightly fixed with reference to Figs. 2 and 3). The friction pad 15 has a deformation hole 152 on the main body portion 151 for inserting and engaging the deformed distal end of the hinge rod 12.

A circular loading portion 122 is formed in a section on the side of the flange member 124 of the main shaft portion 121 of the hinge rod 12 in a direction perpendicular to the axis. The disk springs 14a to 14e which are embedded in the loading portion 122 and constitute the elastic means 14 (five in the illustrated embodiment), particularly as shown in FIG. 4, each have circular through holes 141a to 141e through The hinge rod 12 is inserted and penetrated by the loading portion 122, so that the disk springs 14a to 14e are displaceably loaded in the axial direction of the mounting portion 122 of the hinge rod 12. In other words, the disk springs 14a to 14e of the elastic means 14 can be mounted on the mounting portion 122 of the hinge rod 12 within an allowable range in which the pressure applied in the axial direction is correspondingly freely deformed and received.

Further, the shape, the number, the manner of setting the disk springs 14a to 14e of the elastic means 14, and the like are not limited to those in the embodiment, and can be made according to the necessary elastic force requirements and installation space conditions. Shape, quantity, and settings vary. However, if the number of installations is excessively increased, the miniaturization of the tilt hinge body is disadvantageous.

Furthermore, in the embodiment of the present invention, in addition to the preferred embodiment of the disc spring as the elastic means, the elastic washer and the rubber member are also exemplified, and the space saving and high elasticity performance of the elastic means can be achieved.

On the more front end side of the mounting portion 122 of the hinge lever 12, a cam member loading portion 123 is formed which is provided with four extending slots 127 in the axial direction of the outer surface, wherein the cam member 13 can be hinged The rod 12 has its cam member loading portion 123 moved in the axial direction while maintaining relative rotation of the hinge rod 12. In other words, the cross-sectional shape of the cam member 13 in the direction perpendicular to the axis of the hinge rod through-hole 132 is not circular, but is formed by a cross section of the hinge member 12 in the direction perpendicular to the axis of the cam member loading portion 123, which is formed by four grooves 127. In the case of a slightly cross shape, the cam member 13 does not relatively rotate the hinge lever 12.

As shown in FIG. 4, the main body portion 131 of the cam member 13 is provided with a second cam portion on the surface of the first cam portion 113 on the inner surface of the bottom portion 112 of the column 11 while the hinge rod through hole 132 is provided. 133. In addition, in the embodiment shown in the drawings, as shown in FIG. 4 in particular, the second cam portion 133 has a hinge rod through hole 132 and the upper portion is flat, and at the same time, one of the equidistantly disposed convex portions 1331 and the width are provided. Similarly, the pair of convex portions 1331 sandwich the hinge rod through-holes 132 therebetween, and the bottom portion is flat, and one of the concave portions 1332 having a narrow width is provided at an equal interval, and an inclined portion from each of the convex portions 1331 with respect to each of the concave portions 1332 1333. Further, the position, shape, size, and the like of the convex portion 1331 and the concave portion 1332 are not limited to the first cam portion 113, and the shapes of both the first cam portion 113 and the second cam portion 133 may be replaced with each other. The cam member 13 has a disk shape in the elastic means 14. Under the influence of the springs 14a to 14e, the front end of the hinge rod 12 is bonded, and the second cam portion 133 at the front end of the cam member 13 is pressed against the first cam portion 113 on the inner surface of the bottom portion of the cylinder 11. Furthermore, the cam element 13 can be a generally sintered metal or made by means of casting, forging or the like.

Under the above configuration, if the cylinder 11 and the flange member 124 are relatively rotated with the hinge rod 12 as a fulcrum, the cam member 13 will rotate relative to the cylinder 11 together with the hinge rod 12. Therefore, the second cam portion 133 of the cam member 13 and the first cam portion 113 formed on the cylinder 11 of the crimping cam member 13 are formed in a corresponding column according to the unevenness of each other. 11 and the change in the rotational moment between the hinge bars 12. At this time, under the elastic force of the disc springs 14a to 14e of the elastic means 14, the cam member 13 corresponds to the unevenness of the first cam portion and the second cam portion in the axial direction of the cam member loading portion 123 of the hinge lever 12. Do the sliding. From this, it is understood that the friction cam mechanism 17 is constituted by the first cam portion 113 of the cylinder 11, the second cam portion 133 of the cam member 13, and the elastic means 14. In addition, in the column 11, the grease for lubrication not shown in the figure can be additionally filled as needed.

The shape of the first cam portion 113 and the second cam portion 133 is a restoring force of the disc springs 14a to 14e via the elastic means 14 when the first housing 21 and the second housing 22 are moved to a predetermined closing angle. Conditional design that can be rotated by itself (so-called adsorption action) to the closed position. Moreover, the specific shape of the first cam portion 113 and the second cam portion 133 may be other aspects, for example, the initial position of the adsorption operation, the rotational moment of the second frame 22, or other conditions are various. Design changes.

The action effect of the tilt hinge 1 will be described below.

The column 11 of the tilt hinge 1 is inserted and fixed to the assembly hole 212 on the hinge assembly portion 211 of the first housing 21 which must be reciprocally coupled to each other, and the flange member 124 is inserted and fixed to the second housing 22 An assembly hole 222 is formed in the hinge assembly portion 221.

When the first housing 21 and the second housing 22 are in the closed state, the projection 1331 of the second cam portion 133 of the cam member 13 is fitted to the recess 1132 of the first cam portion 113 on the side of the cylinder 11 The second housing 22 is held and locked to the closed state of the first housing 21, so that no other locking means is required.

When the second housing 22 is gradually opened relative to the first housing 21 in the self-closing state, the flange member 124 and the hinge lever 12 will be slightly rotated, and the cam member 13 and the second cam portion 133 which rotate together with the hinge lever 12 The convex portion 1331 is detached from the concave portion 1132 of the first cam portion 113 on the inner surface of the bottom portion 112 of the column 11, and climbs toward the convex portion 1131 (corresponding to the inclination of the inclined portion 1133 and the second cam portion 133 of the first cam portion 113). At the time of sliding of the portion 1333, the cam member 13 is sequentially separated from the bottom portion 112 of the column 11 by the elastic force of the disk springs 14a to 14e against the elastic means 14 (see Fig. 6). In order to further open the second casing 22 in this state, it is necessary to use the frictional resistance between the inclined portion 1133 of the first cam portion 113 and the inclined portion 1333 of the second cam portion 133 which is pressed by the elastic means 14 (after The frictional moment is formed) and the frictional resistance of the friction pad 15 and the outer side of the bottom portion 112 of the cylinder 11 is greater. Further, when the second casing 22 is released in this state, the second casing 22 is returned to the closed state by the elastic force of the elastic springs 14 by the elastic springs 14a to 14e.

Opening the second housing 22 to a desired angle, when the convex portion 1331 of the second cam portion 133 is in contact with the convex portion 1331 of the first cam portion 113, on the surfaces of both the convex portions 1331, 1331 The flat portions temporarily contact each other and slide to generate a frictional force, whereby the frictional force and the frictional force of the friction pad 15 allow the second housing 22 to maintain any of the first housings 21 even if the hand is released during the opening. The angle is turned on and held at rest.

When the second housing 22 is opened to a larger angle, the convex portion 1331 of the second cam portion 133 of the cam member 13 in the fully opened state reaches the fitting position of the first recess portion 1132 of the first cam portion 113. Then, by the restoring force of the disc springs 14a-14e of the elastic means 14, the convex portion 1331 can be automatically inserted into the recess 1132 via the adsorption function, and the second casing 22 can be locked to the open state. In this embodiment, the opening angle is 180 degrees.

When the second housing 22 that is fully open is closed, the initial closed state is returned via the reverse sequence of operations described above. Further, even in the transient state before the formation of the closed shape, the convex portion 1331 of the second cam portion 133 is automatically fitted into the concave portion 1132 of the first cam portion 113 by the restoring force of the disk springs 14a to 14e of the elastic means 14, It still has the adsorption action during the closed operation.

Embodiment 2

Figure 7 is a cross-sectional view of another embodiment of the tilting hinge of the present invention along a central axis. In the tilting hinge 1A of the second embodiment, the flange member 124 is provided with a boss portion 124a embedded in the interior of the cylinder 11 to prevent the column. The body 11 and the flange member 124 are eccentric with respect to the axis when rotated relative to each other. The other constituent elements are the same as those of the first embodiment, and the same components are given the same Component label.

Embodiment 3

Figure 8 is a view showing another embodiment of the present invention. In the embodiment 1, the hinge rod 12 and the flange member 124 are integrally formed, but in the inclined hinge 1B of the embodiment 3, the hinge rod 120 is a flange member. An independent component of the 1240. In other words, by forming a deformed shaft portion 1243 having a slightly elliptical cross section on the side of the flange member 1240 of the hinge rod 120, and inserting the deformed shaft portion 1243 into the deformation assembling hole 1244 of the flange member 1240, The fixed exposed end forms a fastening portion 1245 to secure the hinge rod 120 to the flange member 1240. Also on the other end of the hinge rod 120, as mentioned in the foregoing embodiment, in the case where the friction pad 150 is used as the fastening portion 1246, the bottom portion 112 of the cylinder 11 can be kept in a rotatable state.

Embodiment 4

FIG. 9 is a view showing another embodiment of the present invention. The tilt hinge 1c of the fourth embodiment has a shaft pivot hole 333 on the bottom portion 331 side of the column 33 and a friction pad interposed between the head portion 341 and the bottom portion 331. The sheet 35 is inserted into the hinge rod 34 having a substantially elliptical cross section through both sides of the cutting head 341, and its front end is fixed to the flange member 36. This fixing means penetrates the deformed assembly hole 361 on the flange member 36 through the slightly elliptical hinge rod 34, and achieves a fixing effect while tightly fixing the exposed end to form the fastening portion 342. Further, on one side of the flange member 36, a boss portion 362 embedded in the column 33 is provided. At the same time, the first cam portion 363 is also disposed on the boss portion 362, and the cam member 37 is disposed on the shaft portion. Through hole 371 in the axial direction While the hinge rod 34 is rotatably inserted, the pair of guiding protrusions 373 disposed at the outer peripheral positions of the cam member 37 and the pair of guiding grooves 334 provided on the inner wall of the cylinder 33 are both The snap fits to have a function of sliding in the axial direction or not. Further, the cam member 37 is also provided with a second cam portion 372 on the opposite side of the first cam portion 363. It is to be noted that the configuration of the first cam portion 363 and the second cam portion 372 and the configuration of the elastic means 14 composed of the disc springs 14a to 14e are the same as those of the first embodiment, and the present invention can also be achieved. purpose.

The electronic device of the present invention (such as an electronic dictionary 2, a mobile phone, a PDA, a car navigation device, a notebook computer or other small electronic device) can be used as the device including the tilting hinge 1 described above, and can also utilize the advantages of the aforementioned tilting hinge. Electronic device.

Further, the present invention is not limited to the foregoing embodiments, and the shape of the column or the hinge rod, the hinge rod assembly means with respect to the column, the shape of the convex portion and the concave portion of the first and second cam portions, and the elastic means The shape and the number of the springs, etc., can be appropriately changed according to the purpose and use of the tilting hinge, and the present invention encompasses all the modified embodiments included in the scope of the patent application.

As described above, the present invention can make the necessary friction torque by using a small diameter and a small volume by a simple composition, and at the same time, has the adsorption function of the second casing for the first casing, and thus can be widely used for various short and light and thin. An inclined hinge in the electronic device in which the first housing and the second housing are open to each other or an electronic device to which the tilt hinge is applied.

1, 1A, 1B, 1C‧‧‧ tilt hinge

11, 33‧‧‧ cylinder

111‧‧‧ Body Department

112, 331‧‧‧ bottom

113, 363‧‧‧ first cam department

1131, 1331‧‧ ‧ convex

114‧‧‧ inner surface

115‧‧‧ outer surface

1151, 126‧‧ s rib locking

116, 333‧‧‧ shaft pivot

117‧‧‧ Openings

12, 120, 34‧‧‧ hinge rod

121‧‧‧Spindle Department

122‧‧‧Loading Department

123‧‧‧Cam component loading unit

124, 1240, 36‧‧‧Flange components

1243‧‧‧Transformation shaft

1244, 361‧‧‧ deformation assembly hole

1245, 1246, 128, 342‧‧‧ fastening parts

124a, 362‧‧ ‧ raised parts

127‧‧‧Bolt

13, 37‧‧‧Cam components

131, 151‧‧‧ Main body

132‧‧‧Hinge rod through hole

133, 372‧‧‧ second cam section

1132, 1332‧‧‧ recess

1133, 1333‧‧‧ inclined section

14‧‧‧Flexible means

14a~14e‧‧‧disk spring

141a~141e, 371‧‧‧through holes

15,150,35‧‧‧ Friction gasket

152‧‧‧Transformation holes

17‧‧‧Friction cam mechanism

2‧‧‧Electronic dictionary (electronic device)

21‧‧‧ first housing

21a‧‧‧ Keyboard Department

211, 221‧‧‧ Hinges Assembly Department

212, 222‧‧‧ assembly holes

22‧‧‧ second housing

22a‧‧‧Display device

334‧‧‧ guiding slot

341‧‧‧ head

373‧‧‧Guided convex

A‧‧‧ area

1 is a perspective view of an electronic device to which the tilt hinge of the present invention is applied; FIG. 2 is an oblique perspective view of the tilt hinge of the present invention, (a) is a perspective view of one side, and (b) is a perspective view of the other side; Figure 3 is a cross-sectional view of the tilting hinge of the present invention along the central axis; Figure 4 is an exploded perspective view of the tilting hinge of the present invention; Figure 5 is a perspective view of the first cam portion of the tilting hinge of the present invention disposed at the bottom of the cylinder; Figure 6 is a cross-sectional view showing the central axis of the friction cam mechanism of the tilting hinge of the present invention, illustrating the operation thereof; Figure 7 is a cross-sectional view of the tilting hinge according to another embodiment of the present invention along the central axis; A cross-sectional view of still another embodiment of the hinge along the central axis; and Figure 9 is a cross-sectional view of the tilt hinge of the present invention along a central axis of still another embodiment.

1. . . Tilting hinge

11. . . Cylinder

111. . . Body part

112. . . bottom

113. . . First cam portion

114. . . The inner surface

115. . . The outer surface

116. . . Shaft hole

12. . . Hinge rod

121. . . Spindle section

122. . . Loading department

123. . . Cam component loading unit

124. . . Flange element

127. . . Bolt

128. . . Fastening part

13. . . Cam element

133. . . Second cam

14. . . Flexible means

14a~14e. . . Disc spring

15. . . Friction washer

17. . . Friction cam mechanism

211, 221. . . Hinge assembly

212, 222. . . Assembly hole

Claims (5)

A tilting hinge comprising a cylinder, a flange member, a hinge rod and a friction cam mechanism; the column system is cylindrical and mounted on a first casing and a second casing which are mutually releasable One of the bodies, and having a bottom having a short diameter, the periphery of the cylinder is provided with a pair of rib locking portions that are deactivated; the flange member is disposed on an open end side of the cylinder, and is mounted Provided in the other of the first housing and the second housing, the flange member is provided with a pair of rib locking portions for preventing rotation, and the length of the flange member is shorter than The hinge rod is protruded from one side of the flange member and rotatably penetrates an axial pivot hole disposed at the bottom of the cylinder, and a friction washer is embedded in the hinge rod from the shaft The exposed end of the pivot hole limits the movement of the hinge rod in the axial direction; the friction cam mechanism is disposed in the column body and has a friction function and an adsorption function, wherein the column is inserted and locked to the first Inside the assembly hole on the hinge assembly of one of the housing or one of the second housings The flange member is inserted into and locked into an assembly hole on the hinge assembly portion of the other housing of the first housing or the second housing, the friction cam mechanism comprising: a first cam portion, Provided in the bottom of the cylinder; a cam member that slides in the axial direction of the cylinder and is non-rotatably disposed, and is inserted into the hinge rod in the direction of the central axis of the hinge rod, It has a second cam portion, the second a cam portion disposed on a side opposite to the first cam portion; and a resilient means disposed between the second cam portion and the flange member for making the first cam portion and the second cam portion Crimp each other. The tilting hinge according to claim 1, wherein the cam member slides in the axial direction of the cylinder and is non-rotatably disposed, and the cam member is engaged with the cylinder. The tilting hinge according to claim 1, wherein the convex portion of the first cam portion and the second cam portion has a flat upper surface. The tilting hinge of claim 1, wherein the elastic means is a disc spring, a resilient washer or a rubber element. An electronic device comprising a tilt hinge as described in claim 1 of the patent application.