KR100731269B1 - Sliding apparatus with improved torsion spring - Google Patents

Abstract

A sliding apparatus installing an improved torsion spring is provided to regularly distribute twisting torque, applied to the torsion spring, to each curved part by making heights of central curved parts identical in a death point range generated when a sliding operation is performed such that it can elongate a death point range and then soften a sliding operation. A sliding apparatus installing an improved torsion spring comprises a fixed plate(220), a moving plate(210), the first torsion spring(231a), and the second torsion spring(231b). The fixed plate(220), fixed at a cover, forms a guide recess in a longitudinal direction and forms the first fixed protrusion and the second fixed protrusion at an upper inner side. The moving plate(210), fixed at the cover, forms a guide rib in a longitudinal direction on its both sides and forms the first spring fixing part and the second spring fixing part protruded on its inner side. The first torsion spring(231a) is composed of plural curve parts which connect the first fixed protrusion to the first spring fixing part such that the moving plate(210) performs semiautomatic sliding. The second torsion spring(231b) is composed of plural curve parts which connect the second fixed protrusion to the second spring fixing part such that the moving plate(210) performs semiautomatic sliding. The plural curved parts include the first torsion unit composed of curved parts which are different radii of curvatures, heights and shapes, and the second torsion unit symmetrical with the first torsion unit. The height of a central curved part of the first torsion spring gets identical to that of the second torsion spring in the death point range generated when the sliding is performed, so the torque applied to the central curved part is regularly distributed.

Description

Sliding apparatus with improved torsion spring

1 is an exploded perspective view showing a portable terminal equipped with a sliding device.

Figure 2a is an exploded perspective view of a sliding device equipped with a conventional torsion spring, Figure 2b shows the structure of a conventional torsion spring.

3 is an operation state diagram of a sliding device equipped with a conventional torsion spring according to opening and closing of the portable terminal.

Figure 4a is an exploded perspective view of a sliding device equipped with a torsion spring according to the present invention, Figure 4b shows the structure of the torsion spring of the present invention.

5 is an operating state diagram of a sliding device equipped with a torsion spring according to the present invention according to opening and closing of the portable terminal.

* Explanation of symbols used in the main part of the drawing

100; Main body 200; A slide device 300; Cover

210; Moving plate 211; Guide rib

212; First spring fixture 213; 2nd spring fixing part

220; Fixed plate 221; Guide

222; A first fixed protrusion 223; 2nd fixed protrusion

230; Torsion Springs of Conventional Sliding Devices

231a; First torsion spring 231b; 2nd torsion spring

232; First bend 232 ′; 1 'bend

233; Second bend 233 '; 2 'bend

234; Third bend 234 '; 3 'bend

235; Fourth bend 235 '; 4 'bend

The present invention relates to a slide opening and closing device of a portable terminal, in particular coupled to the body of the terminal via a torsion spring slidingly open and close, is installed to enable semi-automatic sliding when sliding the cover part convenience and variety of products It relates to an opening and closing device of a portable terminal to improve the.

In general, the conventional slide terminal uses a torsion spring to give a semi-automatic driving force when sliding.

1 is an exploded perspective view showing a portable terminal equipped with a sliding device, as shown in the conventional portable terminal, the cover portion 300 is linearly slid up and down by a predetermined length to the main body 100, The cover part 300 is fixed to the movable plate 210 formed at both ends of the guide rib 211 so that the guide rib 211 slides along the guide grooves 221 formed at both ends of the fixed plate 220 coupled to the main body part 100. It is composed.

Figure 2a is an exploded perspective view of a conventional sliding device equipped with a torsion spring, one end of the pair of torsion springs 230 is fixed to the fixed protrusions (222, 223) of the inner surface of the fixed plate as shown The other end of each of the torsion springs 230 is fixed to the spring fixing parts 212 and 213 on the inner side of the movable plate, and is configured to slide automatically by the elasticity of the torsion spring 230.

Figure 2b shows the structure of a conventional torsion spring, as shown in the conventional torsion spring 230, the bent portion of the same shape is constantly arranged, the radius of curvature of each bent portion of the center is the same, both ends of the spring Is shaped like a "h". In addition, the first torsion portion and the second torsion portion are symmetrically configured on the basis of the virtual line in the drawing.

FIG. 3 is a view illustrating an operation state of a sliding device equipped with a conventional torsion spring according to opening and closing of a portable terminal. As shown in FIG. ) Shows a graph showing the change in the torsional torque received, and the structure of the torsion spring 230 at a fixed position according to the sliding is shown in the right part of the figure.

The torsion spring 230 changes the load acting on the torsion spring 230, that is, the torsional torque, according to the sliding displacement from the closed state of the terminal to the open point of the terminal that is maximally sliding. You will receive a big talk.

The semi-automatic slide mobile phone using the torsion spring slides manually to the inflection point where the torsion spring receives the maximum torque when the cover part is opened with respect to the main body part, and then automatically slides by the tension torque of the compressed torsion spring.

In other words, when the terminal is opened by sliding in a semi-automatic way, the force is manually applied to the inflection point, and the sliding is automatically performed. In other words, a manual force should be applied to the inflection point until it operates automatically.

In general, there is a dead point section near the inflection point that is converted from manual to automatic. Due to the presence of the dead point section, even if a force is applied, the terminal does not automatically slide and stays. In the case of such a short dead point section, the slide motion that is manually and automatically shifted suddenly is not smooth.

In the "A" position, which is the close state of the terminal, the torsion spring 230 is mounted without being subjected to the torsional torque as shown.

In addition, the "C" position represents a sliding point that can be opened to the maximum of the terminal, and the torsion spring 230 is mounted without being subjected to torsional torque.

In the case of the torsion spring 230 in the "B" position where the maximum torque is applied, the bent portion of the torsion spring does not have the same height when drawing the imaginary line, so that a non-uniform load acts on each bent portion. There is a problem in that the section is shortened, so that it is not smooth at the inflection point, that is, a sudden sliding action occurs.

In addition, the design structure of the torsion spring 230, the end of the "a" shape of the first torsion portion of the torsion spring receiving the largest torque when sliding in the closed state of the terminal, and the maximum torque when sliding in the open state of the terminal The end of the "a" shape of the receiving second torsion part has a problem that is broken and broken when a plurality of reciprocating sliding, for example, about 100 thousand reciprocating sliding.

In order to solve the above problems, an object of the present invention is to provide a sliding device equipped with a torsion spring that can smooth the sliding operation by increasing the dead point section of the semi-automatic slide type portable terminal.

In addition, an object of the present invention is to provide a torsion spring having an improved structure capable of preventing damage of the torsion spring due to a plurality of sliding reciprocating of the portable terminal.

An object of the present invention described above is a portable terminal in which a cover part slides with respect to a main body part: a guide groove is formed in the longitudinal direction of the terminal part and a first fixed protrusion and a second fixed protrusion are formed on an inner side of the upper surface. And a movable plate fixed to the cover part and formed at both ends thereof with guide ribs formed at both ends thereof in the longitudinal direction of the terminal, and having a first spring fixing part and a second spring fixing part protruding from an inner surface thereof. A first torsion spring having a shape of a plurality of bends connecting the first fixed protrusion and the first spring fixing part to the semi-automatic sliding plate; and the second fixed protrusion and the second fixed protrusion to make the mobile plate semi-automatic sliding. A second torsion spring having a shape of a plurality of bends connecting the spring fixing part; In the sliding device configured to include,

The plurality of bent portions of the first torsion spring and the second torsion spring are composed of a first torsion portion made of curved portions having different curvature radii, heights and shapes, and a second torsion portion symmetrical with the first torsion portion, and sliding. Sliding with an improved torsion spring, characterized in that the height of the bent portion of the center portion of the first torsion spring and the second torsion spring is the same in the dead point that occurs in the city so that the torque acting on the bent portion of the center is uniform. Achieved by the device.

The first torsion spring and the second torsion spring are configured to minimize deformation of each of the first torsion portions to which the largest torque is applied when sliding in the closed state of the terminal. The fourth bent portion of the spring is formed in a spiral structure that is wound in a clockwise direction and narrows and is configured to be wound along the sliding direction.

In addition, the first torsion spring and the second torsion spring may minimize the deformation of each of the second torsion portions to which the largest torque is applied when sliding in the open state of the terminal. The 4 'bend of the two torsion springs is formed in a spiral structure that is wound in a counterclockwise direction and narrows, and is configured to be wound along the sliding direction.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in the exploded perspective view showing a portable terminal in which the sliding device is mounted in FIG. 1, in the portable terminal in which the cover part 300 slides with respect to the main body part 100, the sliding device 200 is the main body part 100. The fixed plate 220 is fixed to the cover groove formed in the guide groove 221 in the longitudinal direction of the terminal, is fixed to the cover 300 and both ends in the longitudinal direction of the terminal to be coupled to the guide groove 221 The moving plate 210 having the guide ribs 211 is linearly slid.

In addition, a pair of torsion springs are formed inside the upper surface of the fixed plate such that the pair of torsion springs are semi-automatic sliding of the movable plate 210 and the second fixed protrusion 223, the movement of the plate It is connected to the pair of first spring fixing portion 212 and the second spring fixing portion 213 formed to protrude on the inner surface, respectively.

In other words, the pair of torsion springs include a first torsion spring 231a and a second fixed protrusion configured in the shape of a plurality of bent portions connecting the first fixed protrusion 222 and the first spring fixing part 212. It consists of a second torsion spring 231b configured in the shape of a plurality of bends connecting the 223 and the second spring fixing part 213.

Figure 4a is an exploded perspective view of a sliding device equipped with a torsion spring according to the present invention, Figure 4b shows the structure of the torsion spring of the present invention.

The plurality of bent portions of the first torsion spring 231a and the second torsion spring 231b are symmetrical with the first torsion portion and the first torsion portion, each of which is formed of four bent portions having different curvature radii, heights, and shapes. It consists of a second torsion portion.

As shown in FIG. 4B, the first torsion part has a second curvature having the largest height and width, and has a similar curvature radius of about 30 to 70% of the height of the second bend and an error range within 20% of the second bend. It has a first bend portion, a third radius of curvature is smaller than the first bend portion and the second bend portion, and the fourth bent portion formed in a spiral structure to prevent the sag due to the torque acting when sliding and coupled to the fixed protrusion of the The second torsion portion is symmetrically formed with the first torsion portion on the boundary of the imaginary line. The torsion spring of such a shape forms the same height of the center of the torsion spring in the dead point section when the terminal is slid.

However, the number and structure of the plurality of bent portions of the torsion spring is not limited to the number and structure described above, but may be applied to all torsion springs in which the height of the bent portion of the center of the torsion spring is the same in the dead point section when the terminal is slid. .

5 is an operating state diagram of a sliding device equipped with a torsion spring according to the present invention according to opening and closing of the portable terminal.

When the terminal is opened in the closed state or vice versa, the state diagram for explaining the change of the structure according to the sliding position of the first torsion spring 231a and the second torsion spring 231b is shown. It is a graph showing the torsional torque acting on both the first and second torsion springs 231a and 231b, and the structure of the first and second torsion springs 231a and 231b of the sliding device is shown in the right part of the figure.

In the closed position A 'of the terminal, as shown in the drawing, the first torsion spring 231a and the second torsion spring 231b are mounted without being subjected to torsional torque.

In addition, the position 'C' represents a sliding point that can be opened to the maximum of the terminal, and the first and second torsion springs 231a and 231b are mounted without being subjected to torsional torque.

In the case of manually opening the terminal, the maximum torsional torque acts on each of the first and second torsion springs in the vicinity of the inflection point, and a dead point section exists near the inflection point.

As shown in B 'representing the state of the torsion spring in the dead point section, the heights of the bent portions of the respective center portions of the first torsion spring 231a and the second torsion spring 231b are configured to be the same when drawing the imaginary line. .

That is, the heights of the first and second bends 232 and 233 and the first and second bends 232 and 233 which are the centers of the torsion springs of the first and second torsion springs are the same. In such a configuration, the torsional torque acting on the first and second torsion springs 231a and 232b can be evenly distributed, so that a dead point section is formed long, thereby preventing the slide device from being changed automatically manually. It is configured to enable smooth sliding.

When the first torsion spring 231a and the second torsion spring 231b slide in the closed state of the terminal, the largest torque is applied to each of the first torsion parts in the design structure.

In this case, the fourth bent portion 4 235 of the first torsion spring 231a and the second torsion spring 231b is clocked so as to minimize deformation of each of the first torsion portions to which the largest torque is applied. It is formed in a spiral structure that is wound in a narrow direction and is configured to wind along the sliding direction of the terminal.

Therefore, the helical structure considering the sliding direction serves to minimize breakage due to torsional torque acting on the first and second torsion springs 231a and 231b during sliding.

On the other hand, when sliding from the open state to the closed state, the first torque of the first torsion spring 231a and the second torsion spring 231b are applied with the largest torque to each of the second torsion portions.

The fourth 'bends of the first torsion springs 231a and the second torsion springs 232b to minimize deformation of each of the second torsion parts to which the largest torque is applied when sliding in the open state of the terminal. 235 'is formed in a spiral structure which is wound in a counterclockwise direction and narrowed, and is configured to be wound along a sliding direction.

Similarly, the first and second torsion springs 231a and 232b may be configured to minimize the damage caused by the torsional torque.

As described above, the sliding device equipped with the improved torsion spring of the present invention has the following effects.

Torsion spring consisting of a plurality of bent portion according to the present invention is formed so that the height of the bent portion of the center in the dead point section generated during the sliding of the terminal, by equally distributing the torsional torque acting on the torsion spring to each bent section Forming a long has the effect of smoothing the sliding operation of the terminal.

In addition, the spiral bent portion is wound around the end of the torsion spring in the sliding direction of the terminal, thereby preventing the torsion spring from being damaged by the torsional torque.

Claims (3)

In a portable terminal in which the cover portion slides with respect to the main body portion: A fixing plate fixed to the main body and having a guide groove formed in a longitudinal direction of the terminal and having a first fixed protrusion and a second fixed protrusion formed on an inner surface of the upper surface; and Guide plates are formed at both ends in the longitudinal direction of the terminal to be fixed to the cover part and coupled to the guide grooves, and movable plates formed by protruding the first spring fixing part and the second spring fixing part on the inner side thereof; A first torsion spring configured in the shape of a plurality of bent portions connecting the first fixed protrusion and the first spring fixing portion so that the movable plate is semi-automatically sliding; and A second torsion spring configured in a shape of a plurality of bent portions connecting the second fixed protrusion and the second spring fixing portion to the semi-automatic sliding of the movable plate; In the sliding device configured to include, The plurality of bent portions of the first torsion spring and the second torsion spring are composed of a first torsion portion made of curved portions having different curvature radii, heights and shapes, and a second torsion portion symmetrical with the first torsion portion, and sliding. Sliding with an improved torsion spring, characterized in that the height of the bent portion of the center portion of the first torsion spring and the second torsion spring is the same in the dead point that occurs in the city so that the torque acting on the bent portion of the center is uniform. Device. The method of claim 1, The first torsion spring and the second torsion spring are configured to minimize deformation of each of the first torsion portions to which the largest torque is applied when sliding in the closed state of the terminal. And a fourth bent portion of the spring is formed in a spiral structure that is wound in a clockwise direction and is narrowed and configured to be wound along the sliding direction. The method of claim 1, The first torsion spring and the second torsion spring may be configured to minimize deformation of each of the second torsion portions to which the largest torque is applied when sliding in the open state of the terminal. 4. The sliding device with the improved torsion spring, wherein the fourth 'bend portion of the spring is formed in a spiral structure that is wound in a counterclockwise direction and is narrowed in the sliding direction.

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