WO2010058764A1

WO2010058764A1 - Hinge structure and electronic device

Info

Publication number: WO2010058764A1
Application number: PCT/JP2009/069481
Authority: WO
Inventors: 賢二安西; 裕人吉江
Original assignee: ミツミ電機株式会社
Priority date: 2008-11-20
Filing date: 2009-11-17
Publication date: 2010-05-27
Also published as: TW201027306A; JP2010121742A

Abstract

Provided is a hinge structure which rotatably connects together a first member and a second member. The hinge structure has: a first bearing provided on the first member; a second bearing, which is provided on the second member and has a plurality of protruding and recessed sections on the inner circumferential section; and a shaft member, which has a deforming section having spring characteristics, an engaging section provided on the deforming section and engaged with the protruding and recessed sections of the second bearing, and a fixed section fixed to the first bearing, and which is mounted in the first and second bearings. When the first member and the second member relatively rotate, the engaging section shifts in the second bearing, while sequentially moving over the protruding and recessed sections by having the deforming section elastically deformed.

Description

Hinge structure and electronic device

The present invention relates to a hinge structure and an electronic device. More specifically, the present invention relates to a hinge structure capable of obtaining a click feeling and an electronic device using the same.

In recent years, downsizing and improvement in portability of electronic devices are desired. For this reason, various devices have been proposed in which the electronic device is separated into two parts, which are connected by hinges so that they can be folded. Specifically, in a mobile terminal device typified by a mobile phone, a main body portion provided with a numeric keypad and a lid body provided with a liquid crystal display screen are separated and connected by a hinge. A structure has been proposed. For a USB wireless LAN antenna connected to a USB port of a personal computer when using a wireless LAN, a structure in which a USB connector portion and an antenna portion are separated and connected by a hinge has been proposed.

Moreover, in the device in which the electronic device is separated into the first member and the second member and is pivotably connected using a hinge, the first member and the second member can be opened and closed. In order to perceive the user sensuously, and to extend the high-class feeling of the device, a configuration in which a click feeling is obtained with rotation is proposed.

In order to produce this click feeling, a gear having a plurality of teeth is formed on the outer periphery of the shaft constituting the hinge, and a projection is formed inside the bearing portion that supports the shaft, and the projection and the gear engage with each other. A structure configured to do this has been proposed (see, for example, Patent Document 1, Paragraph 0012, FIG. 9). In this hinge structure, when the shaft rotates in the bearing portion, the protrusion moves from the valley portion over the teeth toward the adjacent valley. And when a protrusion fits into the adjacent valley, the user can feel a click.

JP 2007-334632 A

In the above-described hinge structure that can realize the click feeling, the protrusion needs to get over the gear teeth in order to realize the click feeling. However, in a conventional hinge structure used for electronic equipment, the shaft and the bearing are generally formed of resin. Therefore, when the protrusions get over the teeth, the protrusions and the teeth are deformed by the elasticity of the resin, so that the protrusions get over the teeth.

For this reason, in the conventional hinge structure, when the protrusions get over the teeth, a strong pressure is applied to the protrusions and the teeth, so that the protrusions and the teeth are easily worn. Further, when wear occurs on the protrusions and teeth, a click feeling cannot be obtained, and a gap is generated between the shaft and the bearing, so that the durability of the hinge structure is significantly reduced.

The present invention has been made in view of the above points, and an object of the present invention is to provide a hinge structure and an electronic device that are improved in durability by suppressing the occurrence of wear.

In order to achieve the above object, an embodiment of the present invention is a hinge structure that rotatably connects a first member and a second member, and the first bearing provided on the first member. Portion, a second bearing portion provided on the second member and having a plurality of irregularities formed on an inner peripheral portion, a deformable portion having a spring property, and the second bearing portion provided on the deformable portion. An engaging portion that engages with the projections and depressions, a fixing portion that is fixed to the first bearing portion, and a shaft member that is mounted in the first and second bearing portions, When the first member and the second member rotate relative to each other, the deforming portion is elastically deformed, so that the engaging portion moves in the second bearing portion because the engaging portion does not sequentially overcome the plurality of irregularities. Provided is a hinge structure configured to

An embodiment of the present invention is an electronic device having the hinge structure described above,
Provided is an electronic device in which one of the first and second members is an apparatus main body, and the other of the first or second members is a rotating body that rotates with respect to the apparatus main body.

According to the embodiment of the present invention, a click feeling can be obtained when the first member and the second member rotate relatively, and wear occurs between the engaging portion and the unevenness. Can be suppressed.

It is the perspective view which looked at the electronic device to which the hinge structure which is one Example of this invention was applied from the front side. It is the perspective view which looked at the electronic device to which the hinge structure which is one Example of this invention was applied from the back side. It is the disassembled perspective view which looked at the electronic device to which the hinge structure which is one Example of this invention was applied from the front side. It is the disassembled perspective view which looked at the electronic device to which the hinge structure which is one Example of this invention was applied from the back side. It is a perspective view of the shaft member used for the hinge structure which is one Example of this invention. It is a top view which shows the shaft member used for the hinge structure which is one Example of this invention. It is a front view which shows the shaft member used for the hinge structure which is one Example of this invention. It is a left view which shows the shaft member used for the hinge structure which is one Example of this invention. It is a right view which shows the shaft member used for the hinge structure which is one Example of this invention. It is a figure for demonstrating engagement with an uneven | corrugated | grooved part and an engagement protrusion. It is a figure which expands and shows the part shown by the arrow A in FIG. 7A.

Next, the best mode for carrying out the present invention will be described with reference to the drawings.

1 to 4 show an electronic device 10 to which a hinge structure according to an embodiment of the present invention is applied. 1 and 2 are perspective views of the electronic device 10, and FIGS. 3 and 4 are exploded perspective views of the electronic device 10. In the present embodiment, a USB wireless LAN antenna will be described as an example of the electronic device 10.

In brief, the electronic device 10 includes a device main body 11 (corresponding to an example of a second member recited in claims), a rotating body 12 (corresponding to an example of a first member recited in claims), and a hinge device. 13 etc. are included. 1 to 4, the apparatus main body 11 and the rotating body 12 are illustrated so that the internal structure can be seen by removing the cover.

The apparatus body 11 is a resin molded product, and an internal space 16 is formed. In the internal space 16, an antenna device, a circuit board, and the like (not shown) constituting the USB wireless LAN antenna are mounted. The rotating body 12 is also a resin molded product, to which a USB connector 17 and a substrate 18 are attached. The hinge device 13 connects the device main body 11 and the rotating body 12, and in this embodiment, two types of hinge structures of the first hinge structure portion 20 and the second hinge structure portion 30 are applied. The hinge structure according to the embodiment of the present invention is applied to the first hinge structure portion 20.

First, for convenience of explanation, the second hinge structure 30 will be described. The second hinge structure portion 30 includes a bearing portion 31 formed integrally with the apparatus main body 11 and a disk-shaped shaft portion 34 formed integrally with the rotating body 12.

The bearing portion 31 has a flat cylindrical shape that can contain the disc-shaped shaft portion 34, and has a mounting groove 32 formed therein. Further, the bearing portion 31 is formed with a notch portion 35 that allows insertion of the disc-shaped shaft portion 34 into the mounting groove 32 on the side portion. The mounting groove 32 is a disk-shaped groove corresponding to the shape of the disk-shaped shaft portion 34, and the disk-shaped shaft portion 34 can rotate within the mounting groove 32.

The disk-shaped shaft portion 34 is fixed to a column portion 36 (see FIG. 4) formed on the shaft member 23 formed to extend from the rotating body 12. The disk-shaped shaft portion 34 is inserted into the mounting groove 32 from a notch portion 35 formed in the bearing portion 31. In a state where the disc-shaped shaft portion 34 is inserted into the mounting groove 32, the disc-shaped shaft portion 34 is held in the mounting groove 32 in a rotatable state. Therefore, the apparatus main body 11 and the rotating body 12 are in a state of being supported (bearing) by the second hinge structure portion 30.

Next, the first hinge structure portion 20 to which the hinge structure according to the present invention is applied will be described. The first hinge structure portion 20 includes a first bearing portion 21, a second bearing portion 22, and a shaft member 23.

The first bearing portion 21 is formed integrally with the rotating body 12. The first bearing portion 21 is formed with a large-diameter hole 26a, a flange portion 25 is formed on the arrow X1 direction side in the drawing, and a small-diameter hole 26b is formed in the flange portion 25. The large-diameter hole 26a and the small-diameter hole 26b, the above-described disk-shaped shaft portion 34, and the column portion 36 are configured to be coaxial.

A plurality of fixing protrusions 27 are integrally formed on the inner wall of the large-diameter hole 26a formed in the first bearing portion 21. (See FIG. 3). The fixing protrusion 27 engages with a fixing groove 44 of the shaft member 23 described later, and fixes the shaft member 23 to the first bearing portion 21. In this embodiment, four fixing protrusions 27 are formed.

The second bearing portion 22 is formed integrally with the apparatus main body 11. A hole 24 is formed in the apparatus main body 11, and an uneven portion 28 is formed on the inner wall of the hole 24. The concavo-convex portion 28 is not formed on the entire inner wall of the hole 24 but is formed on a substantially half portion of the inner wall of the hole 24 on the arrow X2 direction side in the figure, and the remaining half on the arrow X1 side is a smooth surface ( Bearing surface 24a). Furthermore, the hole 24 in which the uneven portion 28 is formed and the bearing portion 31 are configured to be coaxial.

FIG. 7A shows the second bearing portion 22 in an enlarged manner, and FIG. 7B shows the portion surrounded by the one-dot chain line circle shown by the arrow A in FIG. As described above, the uneven portion 28 is formed on the inner periphery of the hole 24. The uneven portion 28 is composed of a high convex portion 28a, a low convex portion 28b, a strong engaging concave portion 29a, and a concave portion 29b.

Here, as a reference for the height of the high convex portion 28a and the low convex portion 28b, a line segment connecting the valleys of the

concave portions

29a and 29b constituting the concave and convex portion 28 is set (the line segment indicated by the one-dot chain line in FIG. 7B). L. Hereinafter, referred to as a reference line L). The height of the high convex portion 28a with respect to the reference line L is Ha, and is set higher than the height Hb of the low convex portion 28b with respect to the reference line L (Ha> Hb). Moreover, the high convex part 28a is made into one set by a pair of adjacent, and the strong engagement recessed part 29a is made between this pair of high convex part 28a. On the other hand, a recess 29b is formed between a pair of adjacent low protrusions 28b.

As will be described later, an engaging protrusion 42 formed on the shaft member 23 engages with the concavo-convex portion 28. Here, the engagement force when the engagement protrusion 42 is engaged with the strong engagement recess 29a and when it is engaged with the recess 29b will be described. The strong engagement concave portion 29a is formed between the pair of high convex portions 28a. The height of the high convex portion 28a is set higher than that of the low convex portion 28b (Ha> Hb). That is, tall and high convex portions 28a are erected on both sides of the strong engagement concave portion 29a.

Therefore, the engagement force when the engagement protrusion 42 is engaged with the strong engagement recess 29a is stronger than the engagement force when the engagement protrusion 42 is engaged with the recess 29b other than the strong engagement recess 29a. Therefore, when the engagement protrusion 42 is engaged with the recess 29b, the engagement protrusion 42 is easily detached from the recess 29b by the rotation of the shaft member 23, but the engagement protrusion 42 is separated from the strong engagement recess 29a. When engaged, even if the shaft member 23 rotates, the engagement protrusion 42 does not easily disengage from the strong engagement recess 29a. Thereby, the engagement protrusion 42 can be temporarily fixed to the strong engagement recessed part 29a.

In the present embodiment, a total of 16 convex portions are formed at intervals of 22.5 degrees. After the two strong engagement recesses 29a are formed, three recesses 29b are formed, and four sets are formed as one set. That is, in the present embodiment, the strong engagement recesses 29a are formed at intervals of 45.0 degrees. Note that the engagement protrusion 42 engaged with the strong engagement recess 29a can get over the high protrusion 28a by applying a force greater than the engagement force between the strong engagement recess 29a and the engagement protrusion 42.

Next, the shaft member 23 will be described. 5, 6 </ b> A, and 6 </ b> B show the shaft member 23. The shaft member 23 is integrally formed of a resin such as polyacetal having higher body wear than the resin material (for example, epoxy resin) of the device main body 11 and the rotating body 12 which are resin molded products. The shaft member 23 includes a main body portion 40, an arm portion 41, an engagement protrusion 42, a removal preventing claw 43, a fixing groove 44, and the like.

The main body 40 has a cylindrical shape. The diameter of the main body portion 40 is configured to be inserted into the large-diameter hole 26 a of the first bearing portion 21 and the hole 24 of the second bearing portion 22. An arm portion 41 is provided on the side of the main body portion 40 in the direction of the arrow X2 (corresponding to an example of an elastically deformable portion described in claims). One end of the arm portion 41 is integrally connected to the main body portion 40, and the other end extends in the arrow X2 direction. Therefore, the arm part 41 constitutes a cantilever and functions as a leaf spring. Thereby, the arm part 41 can be elastically deformed in a direction (radial direction) indicated by an arrow B in FIGS. 5 and 6B.

A pair of arm portions 41 are provided so as to face the main body portion 40. Further, an engaging protrusion 42 is integrally formed at an outer position near the tip of each arm portion 41. The engagement protrusion 42 has a shape that can be engaged with the strong engagement concave portion 29 a and the concave portion 29 b formed in the uneven portion 28.

As described above, the arm portion 41 has a spring property. Accordingly, the engaging protrusion 42 is pressed against the uneven portion 28 by the elastic force of the arm portion 41. For this reason, the engagement protrusion 42 can be reliably engaged with the uneven part 28. In addition, when the engaging protrusion 42 is elastically urged to the concavo-convex portion 28, it is not necessary to separately provide a spring means such as a coil spring, and the hinge structure can be simplified. In the present embodiment, the engagement protrusion 42 has a shape extending in the directions of the arrows X1 and X2 in the figure, but other shapes (for example, as long as the shape can be engaged with the strong engagement recess 29a and the recess 29b) Hemispherical projections).

On the other hand, a drop prevention claw 43 is provided on the side of the main body 40 in the direction of the arrow X2. The removal preventing claw 43 extends in the arrow X1 direction from the side surface 46 of the main body 40 on the arrow X1 direction side. A pair of the removal preventing claws 43 are provided so as to face the side surface 46.

The drop prevention claw 43 is inserted in the direction of the arrow X1 while being elastically deformed into the small diameter hole 26b formed in the flange portion 25 of the first bearing portion 21. Then, the slip-off preventing claw 43 is elastically restored after the insertion, whereby the claw portion at the distal end portion of the slip-off preventing claw 43 is engaged with the flange portion 25. Thereby, the shaft member 23 is prevented from coming out of the first bearing portion 21 in the direction of the arrow X2.

The fixing groove 44 is formed at four locations on the side surface 46 of the main body 40. The formation position of the fixing groove 44 is set to a position corresponding to the formation position of the fixing protrusion 27 formed on the inner wall of the large-diameter hole 26a of the first bearing portion 21 described above. Therefore, when the shaft member 23 is inserted into the large-diameter hole 26a in the direction of the arrow X1, the fixing groove 44 engages with the fixing protrusion 27, and the shaft member 23 is connected to the first bearing portion 21 (large-diameter hole 26a). The inside rotation is restricted.

Further, as described above, when the shaft member 23 is inserted into the large-diameter hole 26a in the direction of the arrow X1, the removal preventing claw 43 engages with the flange portion 25 (periphery of the small-diameter hole 26b). 1 is prevented from coming off in the direction of the arrow X2. Furthermore, the side surface 46 of the shaft member 23 contacts the flange portion 25 in a state where the shaft member 23 is inserted into the large-diameter hole 26a. For this reason, the shaft member 23 is also prevented from coming off from the first bearing portion 21 in the direction of the arrow X1. That is, the shaft member 23 is fixed to the first bearing portion 21 by being inserted into the large-diameter hole 26a (the removal preventing claw 43 and the fixing groove 44 are fixed portions according to claims). Corresponds to the example).

Since the arm portion 41 is elastically deformed in the direction of arrow B in the drawing as described above, stress is concentrated near the joint position between the arm portion 41 and the main body portion 40, or the main body portion 40 is deformed. There is a risk. In order to prevent this, the shaft member 23 has a reinforcing projection 45 in the vicinity of the position where the arm portion 41 is formed. By providing the reinforcing protrusion 45, it is possible to prevent the main body 40 from being stressed or deformed.

Next, a method for assembling the electronic device 10 will be described. To assemble the electronic device 10, first, the disk-shaped shaft portion 34 provided on the rotating body 12 is mounted in the mounting groove 32 formed in the bearing portion 31 of the device body 11. At this time, the support column 36 is inserted into the mounting groove 32 through the notch 35.

With the disc-shaped shaft portion 34 mounted in the mounting groove 32, the bearing portion 31, the disc-shaped shaft portion 34, the first bearing portion 21, and the second bearing portion 22 are arranged coaxially. Become. In this state, in the second hinge structure portion 30 constituting the hinge device 13, the disk-shaped shaft portion 34 is supported (bearing) by the bearing portion 31. However, in the first hinge structure part 20, the first bearing part 21 and the second bearing part 22 are simply arranged in parallel in the directions of the arrows X1 and X2, and the bearing structure is not taken.

Subsequently, the shaft member 23 is inserted into the second bearing portion 22 hole 24. As described above, since the second bearing portion 22 and the first bearing portion 21 are disposed coaxially, the hole 24, the large diameter hole 26a, and the small diameter hole 26b are also disposed coaxially. Therefore, by inserting the shaft member 23 into the second bearing portion 22 hole 24, the shaft member 23 is also inserted into the large-diameter hole 26a. Then, the removal preventing claw 43 formed on the arrow X1 direction side of the shaft member 23 is inserted into the small-diameter hole 26b while being elastically deformed, and is elastically restored after the insertion to engage with the flange portion 25. At this time, the fixing groove 44 formed in the shaft member 23 as described above engages with the fixing protrusion 27 formed in the large-diameter hole 26 a, so that the shaft member 23 is brought into contact with the first bearing portion 21. Fixed.

Thus, in a state where the shaft member 23 is fixed to the first bearing portion 21, a part of the main body portion 40 faces the bearing surface 24 a of the inner wall of the hole 24, and the engagement formed on the arm portion 41. The protrusion 42 engages with the uneven portion 28. As described above, the electronic device 10 is assembled by a simple operation of simply inserting the shaft member 23 into the first and

second bearing portions

21 and 22 after mounting the disk-shaped shaft portion 34 to the bearing portion 31. be able to. Further, when the shaft member 23 is fixed to the first bearing portion 21, it is not necessary to use other materials such as an adhesive, so that the number of assembling steps and the number of parts can be reduced.

Next, the operation of the hinge structure according to the present invention will be described. In the following description, as shown in FIG. 1, the apparatus main body 11 is rotated in the direction of arrow C in the figure with respect to the rotating body 12 from the state where the apparatus main body 11 and the rotating body 12 are opened in a horizontal state. The operation at that time will be described as an example.

Further, in the electronic device 10 according to the present embodiment, the angle formed between the device main body 11 and the rotating body 12 around the hinge device 13 is 0 ° (folded state), 90 ° (the device main body 11 and the rotating body). 12 is a right angle) and 180 ° (a state where the apparatus main body 11 and the rotating body 12 are horizontal, as shown in FIG. 1), the relative rotation of the rotating body 12 with respect to the apparatus main body 11. (0 °, 90 ° and 180 ° at which this rotation is restricted are referred to as rotation restriction angles). The reason why the rotation restriction angle is provided in this manner is that when the electronic device 10 is used, the angle formed by the apparatus main body 11 and the rotating body 12 is often the rotation restriction angle.

In the state where the apparatus main body 11 and the rotating body 12 are opened so as to be in a horizontal state, the engagement protrusion 42 is engaged with the strong engagement recess 29a of the uneven portion 28 as shown in FIG. 7A. From this state, the apparatus main body 11 is rotated in the arrow C direction with respect to the rotating body 12. As described above, the high protrusions 28a higher than the other low protrusions 28b are formed on both sides of the strong engagement recess 29a. The engagement force between the strong engagement recess 29 a and the engagement protrusion 42 is stronger than the engagement force between the recess 29 b and the engagement protrusion 42. Therefore, the apparatus main body 11 is rotated with a force stronger than the engagement force between the strong engagement recess 29 a and the engagement protrusion 42. Thereby, the engagement protrusion 42 gets over the high convex part 28a and engages with the concave part 29b provided next.

At this time, in the hinge structure according to the present embodiment, since the engaging protrusion 42 is formed on the arm portion 41 having a spring property, the arm portion 41 is elastic when the engaging protrusion 42 gets over the strong engaging recess 29a. Deform. Therefore, even when the engaging protrusion 42 gets over the high convex portion 28a as described above, an excessive load (pressure) is not applied to the engaging protrusion 42 and the high convex portion 28a. The occurrence of wear on the high convex portion 28a can be suppressed. Further, when the engagement protrusion 42 gets over the strong engagement recess 29a and engages with the adjacent recess 29b, the engagement protrusion 42 engages with the adjacent recess 29b together with the elastic restoring force of the arm portion 41. In addition, the operator can obtain a click feeling.

After the engagement protrusion 42 is engaged with the recess 29b, when the apparatus main body 11 is further rotated in the direction of arrow C, the engagement protrusion 42 sequentially gets over the low projection 28b as the second bearing portion 22 moves. To engage with the adjacent recess 29b. Also at this time, since the engaging protrusion 42 engages with the recess 29b together with the elastic restoring force of the arm portion 41 having a spring property, the operator can obtain a click feeling.

Also, when the engagement protrusion 42 gets over the low convex portion 28b, the arm portion 41 is elastically deformed. Therefore, an excessive load (pressure) is not applied to the engagement protrusion 42 and the low protrusion 28b, and it is possible to suppress the wear of the engagement protrusion 42 and the low protrusion 28b.

Further, when the apparatus main body 11 is rotated in the direction of arrow C with respect to the rotating body 12, and the angle formed by the apparatus main body 11 and the rotating body 12 reaches a right angle of 90 °, the engaging protrusion 42 becomes a high convex portion. Overcoming 28a, it engages with the strong engagement recess 29a. As a result, the engagement force between the engagement protrusion 42 and the strong engagement recess 29 a is increased, and the rotating body 12 is held at a position perpendicular to the apparatus main body 11. Even when the engagement protrusion 42 engages with the strong engagement recess 29a, the operator can obtain a click feeling. In addition, since the rotation operation | movement until it will be in the state by which the apparatus main body 11 and the rotary body 12 were folded after that repeats the above-mentioned operation | movement, the description is abbreviate | omitted.

As described above, in the hinge structure according to the embodiment, the engagement protrusion 42 is provided on the arm portion 41 having the spring property. As a result, it is possible to obtain a click feeling when the apparatus main body 11 and the rotating body 12 are rotated relative to each other, and excessive wear occurs between the engagement protrusion 42 and the

convex portions

28a and 28b. Can be prevented. Further, in order to restrict the rotation of the apparatus main body 11 and the rotating body 12 at the rotation restriction angle, even if the high convex portion 28a higher than the other low convex portions 28b is provided, the engaging projection 42 is the high convex portion 28a. The arm portion 41 is also elastically deformed even when getting over. Accordingly, in this case as well, it is possible to suppress excessive wear from occurring between the engaging protrusion 42 and the high convex portion 28a. Therefore, according to the hinge structure according to the present embodiment, it is possible to improve the durability while obtaining a reliable click feeling.

The preferred embodiments of the present invention and the modifications thereof have been described in detail above. However, the present invention is not limited to the above-described embodiments and modifications thereof, and is described above without departing from the scope of the present invention. Various modifications and substitutions can be made to the above-described embodiment and its modifications.

As described above, according to the embodiment of the present invention, the hinge structure that connects the first member (12) and the second member (11) in a rotatable manner,
A first bearing portion (21) provided on the first member (12);
A second bearing portion (22) provided on the second member (11) and having a plurality of irregularities (28) formed on the inner periphery thereof;
A deformable portion (41) having a spring property, an engaging portion (42) provided on the deformable portion (41) and engaged with the unevenness (28) of the second bearing portion (22), and the first A fixed portion (43, 44) fixed to the bearing portion (21), and a shaft member (23) mounted in the first and second bearing portions (21, 22),
When the first member (12) and the second member (11) rotate relatively, the deforming portion (41) is elastically deformed, whereby the engaging portion (42) There is provided a hinge structure configured to move in the second bearing portion (22) because the unevenness (28) is not overcome.

Further, according to the embodiment of the present invention, when the first member (12) and the second member (11) are relatively rotated, the engaging portion (42) has a plurality of irregularities (28). Since it moves in the 2nd bearing part (22) because it does not get over sequentially, a click feeling can be acquired with this rotation. Further, since the engaging portion (42) sequentially overcomes the plurality of irregularities (28) by the elastic deformation of the deforming portion (41), wear occurs between the engaging portion (42) and the irregularities (28). This can be suppressed.

Alternatively, the elastically deformable portion may be a cantilever arm (41), and the engaging portion (42) may be formed at the tip of the arm (41).

With this configuration, a click feeling can be obtained with a simple configuration and the arm (41) can be made springy.

In addition, the engagement portion (42) and the engagement portion (42) are positioned at a position corresponding to a rotation restriction angle that restricts rotation of the first member (12) and the second member (11) of the unevenness (28). You may provide the strong engaging part (29a) from which the engaging force becomes stronger compared with another site | part.

With this configuration, when the first member (12) and the second member (11) are at the rotation restriction angle, the engaging portion (42) is a strong engaging portion (29a) of the unevenness (28). And its rotation is restricted. Therefore, the first member (12) and the second member (11) can be kept at the rotation restriction angle.

The fixing portion includes a protrusion (27) formed on the first bearing portion (21), a groove portion (44) provided on the shaft member (23) and fitted to the protrusion (27), You may comprise by the nail | claw part (43) which prevents that the said shaft member (23) slips out from a said 1st bearing part (21).

With this configuration, the shaft member (23) can be fixed to the first bearing portion (21) without using other materials such as an adhesive.

The hinge structure according to the embodiment of the present invention can be applied to connect the device main body (11) and the rotating body (12) of the electronic device (10) so as to be rotatable.

Note that the above reference symbols are for reference only, and the description of the scope of claims is not limited thereby.

This international application claims priority based on Japanese Patent Application No. 2008-297254 filed on Nov. 20, 2008. The entire contents of Japanese Patent Application No. 2008-297254 are hereby filed. Incorporated into.

The present invention is applicable to hinge structures and electronic devices.

DESCRIPTION OF SYMBOLS 10 Electronic apparatus 11 Apparatus main body 12 Rotating body 13 Hinge apparatus 16 Internal space 17 USB connector 18 Board | substrate 20 1st hinge structure part 21 1st bearing part 22 2nd bearing part 23 Shaft member 25 Flange part 26a Large diameter hole 26b Small-diameter hole 27 Fixing projection 28 Concavity and convexity 28a High convex portion 28b Low convex portion 29a Strong engagement concave portion 29b concave portion 30 Second hinge structure portion 31 Bearing portion 32 Mounting groove 33 Support portion 34 Disc-shaped shaft portion 40 Main body portion 41 Arm Part 42 Engaging projection 43 Detachment preventing claw 44 Fixing groove 45 Reinforcing projection 46 Side

Claims

A hinge structure for rotatably connecting the first member and the second member,
A first bearing portion provided on the first member;
A second bearing portion provided on the second member and having a plurality of irregularities formed on an inner peripheral portion;
A deformable portion having a spring property, an engaging portion that is provided on the deformable portion and engages with the unevenness of the second bearing portion, and a fixed portion that is fixed to the first bearing portion, A shaft member mounted in the first and second bearing portions,
When the first member and the second member rotate relative to each other, the deforming portion elastically deforms so that the engaging portion does not sequentially get over the plurality of irregularities, so that the inside of the second bearing portion. Hinge structure configured to move.
The hinge structure according to claim 1, wherein the elastically deforming portion is a cantilevered arm, and the engaging portion is formed at a tip portion of the arm.
At a position corresponding to a rotation regulation angle that regulates the rotation of the first member and the second member of the unevenness,
The hinge structure according to claim 1, wherein a strong engagement portion is provided in which an engagement force with the engagement portion is stronger than other portions.
The fixing portion includes a protrusion formed on the first bearing portion, a groove portion provided on the shaft member to be fitted with the protrusion, and a claw for preventing the shaft member from slipping out of the first bearing portion. The hinge structure of Claim 1 comprised by a part.
An electronic device having the hinge structure according to claim 1,
An electronic apparatus in which one of the first and second members is an apparatus main body, and the other of the first or second members is a rotating body that rotates with respect to the apparatus main body.