KR101803632B1 - Case capable of changing flat state and curved state - Google Patents

Case capable of changing flat state and curved state Download PDF

Info

Publication number
KR101803632B1
KR101803632B1 KR1020160024009A KR20160024009A KR101803632B1 KR 101803632 B1 KR101803632 B1 KR 101803632B1 KR 1020160024009 A KR1020160024009 A KR 1020160024009A KR 20160024009 A KR20160024009 A KR 20160024009A KR 101803632 B1 KR101803632 B1 KR 101803632B1
Authority
KR
South Korea
Prior art keywords
snap spring
case
elastic member
buckling state
state
Prior art date
Application number
KR1020160024009A
Other languages
Korean (ko)
Other versions
KR20170101467A (en
Inventor
김권희
Original Assignee
고려대학교 산학협력단
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 고려대학교 산학협력단 filed Critical 고려대학교 산학협력단
Priority to KR1020160024009A priority Critical patent/KR101803632B1/en
Publication of KR20170101467A publication Critical patent/KR20170101467A/en
Application granted granted Critical
Publication of KR101803632B1 publication Critical patent/KR101803632B1/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C15/00—Purses, bags, luggage or other receptacles covered by groups A45C1/00 - A45C11/00, combined with other objects or articles
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
    • A45C2011/002—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00 for portable handheld communication devices, e.g. mobile phone, pager, beeper, PDA, smart phone
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
    • A45C2011/003—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00 for portable computing devices, e.g. laptop, tablet, netbook, game boy, navigation system, calculator

Landscapes

  • Telephone Set Structure (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

The present invention relates to a device capable of providing haptic feedback and a display device using the same, and can provide efficient haptic feedback regardless of the area of a display device using a plurality of haptic feedback drivers spaced apart from each other by a predetermined distance , It is possible to provide efficient haptic feedback by using compensation interference of a plurality of haptic feedback actuators.

Description

{CASE CAPABLE OF CHANGING FLAT STATE AND CURVED STATE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case capable of changing between a plane and a curved surface state, and more particularly, to a case capable of converting a plane and a curved surface state according to a buckling state of a snap spring.

Mobile devices before the introduction of the touch screen had various forms such as a bar type, a folder type, and a slide type in order to dispose the mechanical input device and the display device on the same surface. However, as the spread of mobile devices such as smart phones and tablet PCs using the touch screen has been spreading, the mechanical input device has been removed and the bar shape composed only of the touch screen has become mainstream.

However, the conventional bar-shaped case has a problem that portability is deteriorated due to a large size because the enlargement of the touch screen does not satisfy the new demand for high-quality and large-screen viewing of the image content on a large screen.

In order to solve this problem, curved mobile devices employing a flexible display have been introduced. However, since all of them are fixed in a curved surface, they are inconvenient to input and inconvenient to carry and mount .

An object of the present invention is to provide a case in which a planar state and a curved surface state can be converted.

The planar-curved surface conversion case according to an embodiment of the present invention includes a flexible case and a snap spring having a first buckling state and a second buckling state, and both ends of the snap spring are engaged with one surface of the case The case may be bent according to the buckling state of the snap spring.

Further, the snap spring can satisfy the condition of Equation (1).

[Equation 1]

A? B

From here,

A = the shortest distance between the highest point in the vertical direction of the buckled snap spring and the extension line of both ends of the snap spring,

B = the shortest distance between the extension of both ends of the snap spring at the highest point of the snap spring and the opposite surface of the case opposite to the snap spring engagement surface.

In addition, the case may be configured such that the snap spring engagement surface can extend in the longitudinal direction of the snap spring.

The case may be configured such that an angle between the snap spring engagement surface and both side surfaces in the longitudinal direction of the snap spring is fixed.

The snap spring may include an elastic member having a predetermined length and a hinge fixing both ends of the elastic member shorter than the length of the elastic member.

Further, the elastic member may have a section satisfying the condition of Equation (2).

&Quot; (2) "

D1 < D2

From here,

D1 = sectional length in the direction in which the snap spring buckles,

D2 = the section length in the direction perpendicular to D1.

In addition, the snap spring may further include a pivot portion between the elastic member and the hinge.

The hinge may further include a guide portion for restricting both side surfaces of the elastic member with respect to a direction in which the snap spring is buckled.

The mobile device according to the embodiment of the present invention may include the plane-to-surface conversion case and the flexible display.

The haptic feedback driver according to an embodiment of the present invention can provide a case capable of converting a plane and a curved surface state by providing a case that is bent according to the buckling shape of the snap spring after the snap spring is engaged.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A to 1B are schematic views of a planar-curved surface conversion case according to an embodiment of the present invention.
2A and 2B are perspective views of a snap spring according to an embodiment of the present invention.
3 is a view illustrating a mobile device capable of switching from plane to curved according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

1A is a schematic view of a planar-curved surface conversion case 100 according to an embodiment of the present invention.

1A, a planar-curved surface conversion case 100 according to an embodiment of the present invention includes a case 110 having flexibility and a snap having a first buckling state and a second buckling state Both ends of the snap spring 120 are engaged with the inner surface of the case 110 so that the case 110 can be bent according to the buckling state of the snap spring 120.

Here, the first buckling state means one direction in which a parabola formed by buckling the snap spring 120 is directed, and the second buckling state means a state in which the snap spring 120 is buckled in the opposite direction to the first buckling state . Hereinafter, for convenience of explanation, the state in which the snap spring 120 is buckled upward will be referred to as a first buckling state and the buckling state will be referred to as a second buckling state.

The snap spring 120 according to the embodiment of the present invention can satisfy the following condition (1).

Figure 112016019544420-pat00001

From here,

A = the shortest distance between the highest point of the buckled snap spring 120 in the vertical direction and the extension line of both ends of the snap spring 120,

B is the shortest distance between the extension of both ends of the snap spring 120 at the highest point of the snap spring 120 and the opposite surface of the snap ring 120 from the case 110. [

The snap spring 120 can be engaged with the lower surface of the case 110. [ The snap spring 120 that is engaged with the bottom surface (binding surface) can take a parabolic shape in an upward convex shape. The snap spring 120 has a maximum point in the first buckling state (upper surface of the snap spring 120) It is preferable to maintain a height that can not raise the surface (the opposite surface of the binding surface). That is, the snap spring 120 can keep the case 110 in a planar state in the first buckling state by satisfying the condition of Equation (1).

1B is a view showing a planar-curved surface conversion case 100 in which the buckling state of the snap spring 120 is changed.

As shown in FIG. 1B, when an external force is received from the upper surface (opposite surface of the binding surface) of the case 110, the snap spring 120 is buckled downward to be in a second buckling state. At this time, since the snap spring 120 is engaged with the lower surface (binding surface) of the case 110, the lower surface (binding surface) of the case 110 is pushed down when the second buckling state is reached. The case 110 pushed down by the force of the snap spring 120 takes a convex curve shape.

At this time, the case 110 is formed such that one surface (lower surface) of the case 110, which is engaged with the snap spring 120, can extend in the longitudinal direction of the snap spring 120, The length in the longitudinal direction of the base 120 can be fixed. The length of the binding surface of the snap spring 120 in the case 110 becomes a flat surface in the first buckling state so that the length becomes LH. However, in the second buckling state, the length between the hinges 122 remains the same, It is preferable to be constructed so as to be able to extend in the longitudinal direction of the snap spring 120. That is, the length Lout of the lower surface (binding surface) of the case 110 extending in the second buckling state is longer than the length LH of the lower surface (binding surface) in the first buckling state.

Alternatively, the length of the upper surface (the opposite surface of the engagement surface) in the case 110 can be kept the same in the first buckling state and the second buckling state. The length Lout of the lower surface (binding surface) in the second buckling state may be longer than the length Lin of the upper surface (opposite surface of the binding surface) by fixing the length of the upper surface (opposite surface of the binding surface). Through this, the case 110 can take a curve shape in the second buckling state.

The angle? Between the lower surface (binding surface) of the snap spring 120 and both side surfaces in the longitudinal direction of the snap spring 110 can be fixed to the case 110. And the angle between the lower surface (binding surface) and the opposite side surfaces is fixed, thereby transmitting a force for bending both sides of the case 110 inward when the lower surface (binding surface) is bent downward. ) Can bend downward.

The structure of the snap spring 120 will be described with reference to FIGS. 2A and 2B.

2A is a view showing a snap spring 120 according to an embodiment of the present invention.

2A, the snap spring 120 includes an elastic member 121 having a predetermined length and a hinge 122 for fixing both ends of the elastic member 121 to be shorter than the length of the elastic member 121 can do. When both ends of the elastic member 121 are fixed to be shorter than the length of the elastic member 121, the elastic member 121 is buckled to maintain the length. At this time, since the elastic member 121 has a property that the length is extended or shortened by a constant force, when an external force is applied in the direction opposite or different from the buckling direction, the elastic member 121 is moved in the opposite direction or in the other direction To the second buckling state. That is, the snap spring 120 includes an elastic member 121 having a predetermined length and a hinge 122 for fixing both ends of the elastic member 121 shorter than the original length, so that the first buckling state and the second buckling state Lt; / RTI &gt;

The cross section of the elastic member 121 may satisfy the following condition (2).

Figure 112016019544420-pat00002

From here,

D1 = sectional length in the direction in which the snap spring buckles,

D2 = the section length in the direction perpendicular to D1.

The elastic member 121 is bent in the forward or backward (upward or downward) direction with respect to the longitudinal direction of D1 rather than the D2 direction because D1 is shorter than D2 as shown in Equation (2). Accordingly, the snap spring 120 may have a first buckling state bent forward and a second buckling state bent backward with respect to the longitudinal direction of D1.

The snap spring 120 may further include a pivot portion 123 between the elastic member 121 and the hinge 122. Since the pivot portion 123 is limited in one direction, the elastic member 121 connected to the pivot portion 123 can be buckled along the pivot direction of the pivot portion 123. Accordingly, the snap spring 120 may have a first buckling state and a second buckling state with respect to the rotating direction of the swinging part 123. [

The hinge 122 may further include a guide portion 124 for restricting both side surfaces of the elastic member 121 based on a direction in which the snap spring 120 buckles. The elastic members 121 restrained on both sides can be buckled in a direction in which they are not restrained. Accordingly, the snap spring 120 may have a first buckling state and a second buckling state.

2B is a view showing a snap spring 120 having a changed buckling state.

2B, the snap spring 120 includes a guide portion 124 for restricting both side surfaces of the elastic member 121, so that the guide portion 124 can buckle in a direction in which the guide portion 124 does not constrain.

3 is a view illustrating a mobile device having a plane-to-surface conversion case 100 according to an embodiment of the present invention.

3, the mobile device according to the embodiment of the present invention includes a case 110 having flexibility, a snap spring 120 having a first buckling state and a second buckling state, A printed circuit board (PCB) 200 equipped with a circuit, a battery 300 supplying power, and a touch screen 400 provided on the outer surface of the case 110.

The mobile device includes the plane-curved surface conversion case 100, so that the plane and curved surface state can be selectively switched according to an external force applied to the case.

The features, structures, effects and the like described in the foregoing embodiments are included in at least one embodiment of the present invention and are not necessarily limited to one embodiment. Further, the features, structures, effects, and the like illustrated in the embodiments may be combined or modified in other embodiments by those skilled in the art to which the embodiments belong. Therefore, it should be understood that the present invention is not limited to these combinations and modifications.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the present invention. It can be seen that various modifications and applications are possible. For example, each component specifically shown in the embodiments may be modified and implemented. It is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof.

100: plane-curved surface switching case (100)
110: Case
120: snap spring
121: elastic member
122: Hinge
123:
124: guide portion

Claims (9)

A case having flexibility; And
And a snap spring having a first buckling state and a second buckling state,
Wherein both ends of the snap spring are respectively engaged with one surface of the case so that the case is bent according to a buckling state of the snap spring.
The method according to claim 1,
Wherein the snap spring satisfies the condition of Equation (1).
[Equation 1]
A? B
From here,
A = the shortest distance between the highest point in the vertical direction of the buckled snap spring and the extension line of both ends of the snap spring,
B = the shortest distance between the extension of both ends of the snap spring at the highest point of the snap spring and the opposite surface of the case opposite to the snap spring engagement surface.
The method according to claim 1,
In this case,
Wherein the snap spring engagement surface extends in the longitudinal direction of the snap spring.
The method according to claim 1,
Wherein the case is fixed at an angle between the snap spring engagement surface and both side surfaces in the longitudinal direction of the snap spring.
The method according to claim 1,
The snap spring
An elastic member having a predetermined length; And
And a hinge for fixing both ends of the elastic member to be shorter than the length of the elastic member.
6. The method of claim 5,
The elastic member
Wherein the cross-section satisfies the condition of Equation (2).
&Quot; (2) &quot;
D1 &lt; D2
From here,
D1 = sectional length in the direction in which the snap spring buckles,
D2 = the section length in the direction perpendicular to D1.
6. The method of claim 5,
The snap spring
And a pivoting portion between the elastic member and the hinge.
6. The method of claim 5,
The hinge includes:
And a guide portion for restricting both side surfaces of the elastic member with respect to a direction in which the snap spring is buckled.
A planar-curved surface conversion case as set forth in any one of claims 1 to 8; And
A mobile device comprising a flexible display.
KR1020160024009A 2016-02-29 2016-02-29 Case capable of changing flat state and curved state KR101803632B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160024009A KR101803632B1 (en) 2016-02-29 2016-02-29 Case capable of changing flat state and curved state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160024009A KR101803632B1 (en) 2016-02-29 2016-02-29 Case capable of changing flat state and curved state

Publications (2)

Publication Number Publication Date
KR20170101467A KR20170101467A (en) 2017-09-06
KR101803632B1 true KR101803632B1 (en) 2017-11-30

Family

ID=59925458

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020160024009A KR101803632B1 (en) 2016-02-29 2016-02-29 Case capable of changing flat state and curved state

Country Status (1)

Country Link
KR (1) KR101803632B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100968905B1 (en) 2008-06-03 2010-07-14 한국과학기술원 Haptic feedback providing device using bending
KR101404628B1 (en) 2013-05-29 2014-06-11 김선종 flexilbe electronic device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100968905B1 (en) 2008-06-03 2010-07-14 한국과학기술원 Haptic feedback providing device using bending
KR101404628B1 (en) 2013-05-29 2014-06-11 김선종 flexilbe electronic device

Also Published As

Publication number Publication date
KR20170101467A (en) 2017-09-06

Similar Documents

Publication Publication Date Title
US9823700B2 (en) Display apparatus
CN111316344B (en) Flexible frame and flexible display unit having the same
US10342121B2 (en) Flexible display unit and mobile terminal having the same
KR101777723B1 (en) Case sliding apparatus
CN104793700B (en) Display device
EP4340340A3 (en) Electronic device including display
US20130286553A1 (en) Limiting movement
KR102193313B1 (en) Electronic apparatus
US7787919B2 (en) Electronic device and sliding mechanism thereof
JP2011082771A (en) Connection device
US9482383B1 (en) Support stand
US11199875B2 (en) Display device
US9524004B2 (en) Wearable display device
US8116835B2 (en) Electronic device and sliding mechanism thereof
KR101803632B1 (en) Case capable of changing flat state and curved state
US9122124B2 (en) Actuator and camera module having same
US20140125529A1 (en) Antenna device and electronic appliance having the same
KR20150096986A (en) Clip type contact terminal on the board
KR102302702B1 (en) Bendable display
KR100690844B1 (en) Fpc and a portable terminal having the fpc
US20170351298A1 (en) Detachable electronic device
US20090176527A1 (en) Mobile Phone with Camera
KR102041498B1 (en) Hinge module for flexible display
KR200463901Y1 (en) Mobile device wrist holder
EP3291365B1 (en) Self-locking fixing device and antenna assembly

Legal Events

Date Code Title Description
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant