JP2003271073A - Device for fixing unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for fixing units capable of surely fixing unit parts of liquid crystal panels, etc. <P>SOLUTION: Apertures 30 expanding to a transverse direction are formed on the lower side of locking sections 18 for locking the top surfaces of the unit parts. Elasticity is imparted to wall surface materials 16 by the apertures 30 and even if the height of the unit parts is slightly higher than the height of the under surfaces of the locking sections 18, dimensional errors can be absorbed by deformation of the apertures 30. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit fixing device for fixing unit parts such as a liquid crystal panel.

[0002]

2. Description of the Related Art FIG. 1 is a block diagram of a conventional unit fixing device 10 for fixing unit components such as a liquid crystal panel. The conventional unit fixing device 10 has a base member 12, a side wall member 14, and a wall member 16, and forms an accommodation area 20 for accommodating unit components. The wall member 16 is provided with a locking portion 18 that projects toward the housing area 20, and the upper surface of the wall material 16 is locked by the locking portion 18 when the unit component is housed. The unit fixing device 10 is used for fixing a display panel in a notebook PC (personal computer), a mobile terminal, or the like.

[0003]

Generally, it is rare that a unit component or a unit fixing device 10 which is a component to be fixed can be manufactured according to a design dimension, and in reality, the size thereof varies. The tolerance of unit parts such as liquid crystal panel is set to about ± 0.25 mm,
The unit fixing device 10 also has a tolerance of ± 0.1 to
A value of about 0.25 mm is set. Therefore, a design clearance of about ± 0.5 mm at maximum is set between the lower surface of the locking portion 18 and the upper surface of the unit component. Conventionally, the unit fixing device 10 is manufactured in consideration of this design clearance. Is going.

Further, the unit fixing device 1 is used to attach the unit parts.
When it is accommodated in 0, it may be difficult to insert the unit component below the locking portion 18 because the locking portion 18 is formed at a lower position than desired. If the liquid crystal panel is forced into the unit fixing device 10, the surface of the panel becomes wavy, and there is a problem that the visibility is extremely deteriorated, and there is a risk that the locking portion 18 is broken.

Therefore, an object of the present invention is to provide a unit fixing device which can solve the above problems.

[0006]

In order to solve the above-mentioned problems, one aspect of the present invention is to provide a base member for supporting a bottom surface of a unit part and a substantially L-shape with the base member. A wall surface member that abuts and fixes side surfaces of the wall member, and a locking portion provided on the wall material that locks the upper surface of the unit component, and an opening is formed near the locking portion of the wall material. A unit fixing device characterized by the above.
By providing the opening, the wall surface material has elasticity, and it becomes possible to absorb the dimensional variation between the unit component and the unit fixing device and to stably fix the unit component.

The design clearance between the engaging portion and the upper surface of the unit component may be zero. This is because the wall material has elasticity due to the opening, and it is possible to absorb a slight difference in size between the unit component and the unit fixing device. Further, the opening may be formed substantially parallel to the locking portion.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION <First Embodiment> FIG. 2 is a block diagram of a unit fixing device 100 for fixing unit parts according to a first embodiment of the present invention. The unit fixing device 100 includes a base material 12 that supports the bottom surface of the unit component when the unit component is housed, a wall member 16 that is substantially L-shaped with the base member 12, and abuts and fixes the side surface of the unit component. An engaging portion 18 provided on the wall surface member 16 that locks the upper surface of the unit component, and side wall members 14a and 14b that prevent movement of the unit component in the longitudinal direction of the wall member 16.
The opening 30 is formed in the vicinity of the locking portion 18 of the wall member 16. Although not shown, the unit fixing device 100 also includes a wall material facing the wall material 16, and the wall material and the sidewall material form a frame body to form a housing area 20 for housing a unit component. To do.
The height of the unit parts is from the upper surface of the base member 12 to the engaging portion 1
If the height is higher than the lower surface of the wall member 8, the opening 30 deforms the shape when the unit parts are housed, and the wall member 1
By giving elasticity to 6, the locking portion 18 can securely and stably lock the upper surface of the unit component.

The opening 30 is a wall material 1 around the locking portion 18.
It is preferably formed below the locking portion 18 in order to give elasticity to 6. Further, the opening portion 30 is provided substantially parallel to the locking portion 18 so that the wall material 16 has a large elasticity.
6 and has a width wider than that of the locking portion 18.

FIG. 3 is a sectional view showing a state in which the side surface of the unit component 40 is in contact with and fixed to the inner surface of the wall member 16. The upper surface of the unit component 40 is locked by the locking portion 18. In the past, it was necessary to set a design clearance of about ± 0.5 mm at the maximum, but since this unit fixing device 100 has elasticity due to the opening 30 penetrating the wall member 16, it is The design clearance on the upper surface of the unit component 40 can be made zero.

<Second Embodiment> A second embodiment of the present invention relates to a flat cable, and in particular, between units connected by a rotary hinge portion in a folding portable terminal, a notebook PC, or the like. The present invention relates to a flat cable used for transmitting signals.

The flat cable is a flat cable in which conductors are arranged in parallel, and a typical example is an FPC.
(Flexible printed circuit board) and FFC (flexible flat cable) exist. This flat cable has many uses, and may be used for transmitting signals between a panel unit and an input unit in which a numeric keypad is arranged, for example, even in a mobile terminal. Particularly, recently, most mobile terminals are foldable types, and the panel unit and the input unit often exist with the rotary hinge portion interposed therebetween. Therefore, it is necessary for the flat cable to electrically connect the panel unit and the input unit via the rotary hinge portion.

However, the flat cable has a considerably large width because of the structure in which the conductors are arranged in parallel. In general, in the rotary hinge portion, the storage area of the conducting wire is formed very narrow due to the demand for miniaturization of the portable terminal or the notebook PC itself, so that there is a problem that it is difficult to store a wide flat cable in the rotary hinge portion. .

Therefore, a second embodiment of the present invention has an object to provide a flat cable which can be easily housed in a rotary hinge portion of a portable terminal or the like.

In order to solve this problem, the second aspect of the present invention
One aspect of the above embodiment is characterized in that a slit is provided in the longitudinal direction of the flat cable. The slit divides the conductor portion of the flat cable into the number of slits plus one. It is preferable that the widths of the conductor portions are all equal. When this flat cable is provided in a foldable mobile terminal, the cable width is markedly narrowed by folding the divided conducting wire portions, and the narrowed portion is arranged in the storage area in the rotary hinge portion or the like.

Another aspect of the second embodiment relates to a method of bending a flat cable. First, a slit is formed in the longitudinal direction of the flat cable to divide it into a plurality of conducting wire parts, and when this conducting wire part is bent to approximately 90 °, when the bending line reaches the slit, the start end of the next bending line is the slit. A folding line is formed into the shape of a saw so that it comes to the end of the. When each conductor portion is bent at 90 ° with this bending line, all conductor portions are folded and overlapped, so that a narrow cable portion can be formed.

FIG. 4A is a configuration diagram of a flat cable 200 according to a second embodiment of the present invention. A plurality of slits 202 are formed in the flat cable 200 in the conducting wire direction, that is, the longitudinal direction of the flat cable 200, and the conducting wire is divided by the slits 202.
It is preferable that the start points and the end points of the slits 202 are aligned in the longitudinal direction of the flat cable 200. The area where the slit 202 is provided is the slit area 2
Areas where the slit 202 is not provided are called end areas 206a and 206b. In this example, four slits 202 are provided in the slit region 208, and the flat cable 200 is divided into five conductor portions. It is preferable that all the divided conductor portions have the same width w so that all conductor portions are folded when the conductor portions are bent.

The flat cable 200 is bent at approximately 90 ° with the dotted line shown in the drawing as a bending line, and the conductor portions are overlapped. This fold line is slit 20
2 and the longitudinal edge of the flat cable 200 is set to about 45 °. The area in which the fold line is set is called a fold area. The starting point of each folding line is the starting point or the ending point of the slit 202, and is also the boundary between the slit region 208 and the end region 206a or 206b at the edge in the longitudinal direction. In this way, the bending line is set in a saw-tooth shape with the end of each slit 202 as the apex. In the bending line on the end region 206a side, the flat cable 200 is bent so that the slit region 208 is located above the end region 206a, and in the bending line on the end region 206b side, the slit region 2 is formed.
The flat cable 200 is folded back so that 08 is below the end region 206b.

FIG. 4B shows a state in which the flat cable 200 is bent. When folded, slit area 20
The bent regions set at both ends of 8 are arranged linearly. The flat cable 200 has a portion having a cable width of w by folding and folding the conductor portion divided by the slit 202. in this way,
By bending the flat cable 200 and forming a part of the flat cable 200 to have a narrow width, it is possible to easily arrange the narrow cable portion in a narrow space provided in a rotary hinge portion or the like. In addition, the flat cable 200
It is also possible to configure the flat cable 200 having a portion with a narrower width at the time of folding by dividing the slit region 208 into a larger number of conductive wire portions.

FIG. 5 shows a state in which the flat cable 200 according to the second embodiment of the present invention is provided inside the portable terminal 220. In this mobile terminal 220, a panel unit 224 and an input unit 226 are rotatably connected via a rotary hinge portion 222. Mobile terminal 220
The folded and narrow conductor wire portion is accommodated in the rotary hinge portion 222 of the above.

FIG. 6A shows a jig structure 240 used for bending the flat cable 200. Jig 242
And 244 are end regions 2 of the flat cable 200.
06a is gripped and jigs 246 and 248 hold the end region 206b.

FIG. 6B is a side view of the jig structure 240 holding the flat cable 200. If the width of the slit is ignored, the jigs 242 and 244 are arranged so as to be displaced by the width w of the conductor portion, and the jigs 246 and 248 are arranged.
Similarly, they are arranged with a shift of the width w. An end region 206a exists below the jig 242, and a bent region exists in a region having a width w between the right end of the jig 242 and the right end of the jig 244. Similarly, above the jig 248, the end region 2
06b exists, and a bending region exists in a region having a width w between the left end of the jig 248 and the left end of the jig 246. Jig 2
The slit region 208 of the flat cable 200 exists between the right end of 42 and the left end of the jig 248.

FIG. 6C is a side view of the jig structure 240 in which the flat cable 200 is bent. When this jig structure 240 is used, the jig 2 is moved from the state shown in FIG.
42 and 244 and the jigs 246 and 248 are moved so that the bending regions are arranged in a straight line, so that the flat cable 200 is bent so that the slit region 208 is arranged above the end region 206a. ,
The step of folding back the flat cable 200 so that the slit region 208 is located below the end region 206b can be easily realized.

Although the present invention has been described above based on the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It is understood by those skilled in the art that the above-described embodiments are mere examples, and that various modifications can be made to the combinations of the respective constituent elements and the respective processing processes, and that such modifications are also within the scope of the present invention. This is where

[0025]

According to the present invention, it is possible to provide a unit fixing device capable of suitably fixing unit parts such as a liquid crystal panel.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a conventional unit fixing device for fixing a unit component such as a liquid crystal panel.

FIG. 2 is a configuration diagram of a unit fixing device that fixes a unit component according to the first embodiment.

FIG. 3 is a diagram showing a state in which a side surface of a unit component is in contact with and fixed to an inner surface of a wall material.

FIG. 4A is a configuration diagram of a flat cable according to a second embodiment, and FIG. 4B is a diagram showing a state in which the flat cable is bent.

FIG. 5 is a diagram showing a state in which a flat cable is provided in a mobile terminal.

6A is a view showing a jig structure used for bending a flat cable, FIG. 6B is a side view of the jig structure holding the flat cable, and FIG. 6C is a side view of the flat cable. It is a side view of the jig structure body which was bent.

[Explanation of symbols]

12 ... Base material, 14 ... Side wall material, 16 ... Wall material, 18 ... Locking portion, 20 ... Housing area, 30 ...
-Opening, 40 ... Unit parts, 100 ... Unit fixing device, 200 ... Flat cable, 202
... Slits, 206a ... End regions, 206b
..End regions, 208 ... Slit regions, 240 ...
-Jig structure.

Claims (3)

[Claims] 1. A base material for supporting a bottom surface of a unit part, a wall material that is substantially L-shaped with the base material and abuts and fixes a side surface of the unit part, and an upper surface of the unit part is locked. And a locking portion provided on the wall material, wherein an opening is formed in the wall material in the vicinity of the locking portion. 2. The unit fixing device according to claim 1, wherein the design clearance between the locking portion and the upper surface of the unit component is zero. 3. The unit fixing device according to claim 1, wherein the opening portion is formed substantially parallel to the locking portion.