JPH03219114A - Rotation supporting mechanism of switching body - Google Patents

Abstract

PURPOSE:To enlarge a rotary angle of a plate-like switching body and prevent damage with easy coming-off against excessive force by forming parts engaging with rotary shafts to be a rectangular shape long is the direction of frictional movement of the rotary shafts, and chamferring specified portions of the rotary shafts so as to be come off in an opening direction of the plate like switching body. CONSTITUTION:Rotary shafts 5, 6 projecting bilaterally are provided on both ends of one side of a panel 4, to engage with bearing parts 7, 8 formed on a frame 1 and open or close in a direction of Z. The measurements of the bearing part 7 in a direction (a) is substantially twice as large as a sectional diameter of the rotary shaft 5, and the height thereof in a direction (c) is sub stantially the same as the sectional diameter of the rotary shaft 5. The rotary shafts 5, 6 are chamferred so as to be come off from the case 1 when the panel 4 is opened, each showing a wedge shape on the front face. The rotary shafts 5, 6, with the above construction, are engaged with inner walls of the bearing parts 7, 8 with certainty and a rotary angle of the panel 4 is enlarged. Further, they are easily come off when excessive force is applied thereto under an opened condition, thereby damage is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rotation support mechanism for an opening/closing body, such as an integrated display cover, provided on the operation surface of a communication device such as a telephone.

[Prior art]

2. Description of the Related Art Communication devices such as telephones are provided with an operation section consisting of operation buttons and the like on the top surface, and are capable of storing the telephone number and the like of the other party to communicate with. When communicating, a telephone number or the like that has been replaced with an abbreviated number is used.

It is necessary to display the recorded contents such as the name of the other party, telephone number, etc. in a list at an appropriate location on the above-mentioned operation panel, but in order to fix and cover this display, the entire body is made of a nearly transparent body. It is equipped with a panel that can be opened and closed. The display body is stored or taken in and out for rewriting by opening and closing the panel.

[Problem to be solved by the invention]

However, the conventional panel opening/closing mechanism described above has the following problems. For example, in the case shown in FIG. 6, rotation shafts 22 are integrally formed at both ends of the sides in the width direction of the panel 21, and the rotation shafts 22 are formed to protrude slightly in the length direction of the panel 21. The portion 23 is C-chamfered or R-chamfered, and this portion is formed on the case frame 24 on the upper surface of the communication device, and a rotary bearing is rotatably engaged with the portion 25.

Therefore, regardless of whether the panel 21 is closed or opened, the protruding portion 23 of the rotating shaft 22 is chamfered with a C or R in the direction of being removed from the case frame 24, so that vibrations and shocks are applied to the panel 21. If the panel 21 is attached to the case frame 24 and is transported, it will easily come off, and if the panel 21 is attached to the case frame 24 and transported, it will not only come off, but also cause damage to the panel 21. There was a problem with giving it away. Note that FIG. 6 is a front view of the panel 21 in an open state, and the panel 21 can be opened and closed in the directions of the arrows.

Moreover, what is shown in FIGS. 7A and 7B is the width direction of the panel 26.
A guide arm 28 that serves as a fulcrum 27 for the opening/closing movement of the panel 26 and guides the opening/closing movement of the panel 26 is integrally provided approximately in the center of both sides of the panel 26 in the length direction. This guide arm 28 is connected to an opening 3 formed in the case frame 29.
panel 26 by reciprocating in the direction of the arrow through
It is designed to open and close. Furthermore, the guide arm 28
Small latch projections 31 are formed at predetermined intervals on the inside of the case frame 29, and an engagement tool 32 disposed inside the case frame 29.
The latch operation is performed with the protrusion 33. Note that 34 is a locking portion for preventing the panel 21 from coming off when the panel 21 is spaced to the maximum extent. With this configuration, in this conventional example, the shape of the parts becomes complicated, the configuration of the corresponding parts of the case frame 29 becomes complicated, and the mounting space inside the case frame is reduced.
There is a problem in that the rotation angle of the panel 26 cannot be increased for stable operation. Furthermore, if an attempt is made to open the panel 26 with more force than necessary, the panel 26 cannot be easily removed from the case frame 29, which may result in damage.

The present invention is proposed to solve the above problems, and although it has a simple structure, it does not easily come off from the case frame.
Moreover, it is an object of the present invention to provide a rotation support mechanism for an opening/closing body that can operate smoothly in opening/closing movements.

[Means and operations for solving the problems] In order to achieve the above object, the present invention provides a rotational support mechanism for an opening/closing body in which one end of the plate-shaped opening/closing body is engaged with a predetermined location of an object to be attached so as to be capable of opening and closing. A rotating shaft is formed on both sides of one end of the plate-shaped opening/closing body, and a predetermined part of the rotating shaft is chamfered so as not to interfere when the plate-shaped opening/closing body is rotated in the opening direction. The length of the rotating shaft engaging portion formed on the main body in the rotating shaft rubbing direction is approximately twice the rotating shaft cross-sectional diameter, and the height in the direction perpendicular to the rotating shaft rubbing direction is approximately the same as the rotating shaft cross-sectional diameter. It is formed in the shape of a rectangular parallelepiped space.

With this structure, the plate-shaped opening/closing body can be opened at a large angle, and if the opening/closing body is opened with more force than necessary, the plate-shaped opening/closing body can be prevented from coming off and causing damage to the engaged parts. be able to.

〔Example〕

FIG. 1 shows an embodiment in which the present invention is applied to a telephone. The upper surface of the case frame 1 of the telephone is formed as an operation section provided with operation buttons 2, etc., and an entry sheet 3 with various displays is placed on this operation section, and the upper surface thereof is formed of a substantially transparent material. This is covered by panel 4. The panel 4 is configured to open and close using both ends of the sides in the width direction as fulcrums, and when inserting or removing the entry form 3, the panel 4 is opened as shown in Figure B.

FIG. 2 is an enlarged view of the vicinity of the panel 4. Of these, Figure A is a perspective view, Figure B is a side view in the X direction in Figure A, and Figure 0 is a front view in the Y direction.

Rotating shafts 5.6 are integrally formed at both ends of the width direction and sides of the panel 4, and the bearings formed on the case frame 1 engage with the portions 7.8 to open and close in the Z direction. It's Nishide. Further, a protrusion 9.10 is formed at the other end in the width direction of the panel 4 so that the panel 4 can be locked when closed, and a protrusion support hole 11.1 is formed at the corresponding location on the case frame.
2 to be engaged.

Next, to explain the vicinity of the rotation axis 5.6 of the panel 4, as mentioned above, the panel 4 rotates in the Z direction, but in this case, the force acting on the panel 4 in the a direction (back and forth direction) is The bearing formed in the frame 1 is located in the wall 13.14 of part 7.8.
The force acting in direction b (horizontal direction) is regulated by the relationship between the width LL2 on both sides of the panel and the convergence width 14 L:l of bearing part 7.8 of case frame 1, and the force acting in direction b (horizontal direction) is The force acting in the bearing direction is the wall 15 of the bearing section 7.8.
．． It is regulated by 16. In this way, the rotation axis 5.6
operates while being regulated in each direction of a, b, and c.

Since the panel 4 constructed in this way is made of elastic synthetic resin, etc., in order to rotatably attach it to the case frame 1, it must be attached in the longitudinal direction of the case frame 1 as shown in FIG. While bending, the bearing is attached to the rotating shaft 5 at part 7.8.
．． This can be easily done by engaging 6. In this case, it goes without saying that the amount of protrusion of the rotary shaft 5.6 is set depending on the amount of deflection of the panel 4.

FIGS. 4A and 4B are explanatory diagrams showing the state of opening and closing movement of the panel 4. By making the dimension of the bearing part 7 in the a direction approximately twice the cross-sectional diameter Φ of the rotating shaft, when the panel 4 is opened, the bearing will surely engage with the inner wall of the part and will close due to vibration etc. This means that a stable state can be maintained without any problems.

In addition, the rotation angle θ of the panel 4 can be made large, making it easy to take in and take out the display, and also make it easier to remove the display when excessive force is applied in the wide open state.

FIG. 5 is an enlarged view of the vicinity of the rotating shaft 6, and the end face is chamfered with a C in the direction away from the case frame 1 when the panel 4 is opened, so that it presents a model when viewed from the front in the direction of the rotating shaft. Therefore, if you want to remove the panel 4, you can easily remove it by applying force in the direction of opening the panel 4 to its maximum extent, while it can be easily removed when the panel 4 is attached to the case frame 1 and closed. Since the C-face portion 17 does not come into contact with the inner wall of the case frame 1, it will not come off.

〔Effect of the invention〕

As described above, according to the present invention, since the rotary bearing is formed to have a long portion in the rubbing direction of the rotary shaft, the panel can be opened wide and reliable engagement with the case frame can be realized. In addition, the rotation axis formed on the panel is chamfered in the direction in which the panel opens, so if the rotation angle of the panel is large and excessive force is applied, it will easily come off and be damaged. be able to.

[Brief Description of the Drawings] Figures 1A and B are perspective views of a telephone to which the present invention is applied; Figures 2A, B, and C are explanatory diagrams of the panel's rotation axis; Figure 3 is a perspective view of the panel; FIGS. 4A and 4B are illustrations of the operation of the rotating shaft, FIG. 5 is an enlarged view of the rotating shaft, and FIGS. 6 and 7 are illustrations of the conventional example. 1...Case frame 4...Panel 5...Rotating shaft 7...Bearing part 17...C surface part Fig. 1 Fig. 3 Fig. 1 Fig. 4 M Fig. 5 Fig. 6 I

Claims (1)

[Scope of Claims] 1. In a rotational support mechanism for an opening/closing body which is engaged with a predetermined location of an object to be attached so that one end of the plate-shaped opening/closing body can be opened and closed, one end of the plate-shaped opening/closing body projects in both directions on both sides. At the same time, a predetermined portion of the rotating shaft is chamfered so as not to cause an obstruction when the plate-shaped opening/closing body is rotated in the opening direction, and a rotating shaft engaging portion formed on the object to be mounted is formed on the rotating shaft. It is characterized by being formed into a rectangular parallelepiped space whose length in the rubbing direction is approximately twice the cross-sectional diameter of the rotating shaft, and the height in the direction perpendicular to the rubbing direction of the rotating shaft is approximately the same as the cross-sectional diameter of the rotating shaft. Rotation support mechanism for opening/closing body.