JP2008289068A - Structure and method for attaching buffer member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a buffer member from being detached when combining two cases of housings after the buffer member is attached. <P>SOLUTION: In a cellular phone 1, housings 2 and 4 are linked by a double-shaft hinge part 3 and these housings 2 and 4 can be relatively opened/closed and inverted by the double-shaft hinge part 3. For the housing 2, two cases 21 and 22 are assembled and an inner case 24 is provided within the housing 2. A projection 27 is provided on a side surface 26 of the inner case 24, a rib 29 is provided, on the case 22, at a position corresponding to the side surface 26, and a shaft hole 33 and a recess 34 are formed on an arm 32 of a buffer member 15. The projection 27 is inserted into the shaft hole 33 and the arm 32 is rotated. Thus, the rib 29 is fitted into the recess 34, and the arm 32 is held between the side surface 26 and the rib 29, wherein a head portion 31 of the buffer member 15 is arranged at a corner part 12 of the housing 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cushioning member mounting structure and a cushioning member mounting method, and more particularly to a buffer that cushions an impact at a corner of one casing when the corner of one casing contacts the other casing in a biaxial hinge type electronic device. The present invention relates to a mounting structure and a mounting method for mounting a member.

  In recent years, two-axis hinge type mobile phones have been widely used. A biaxial hinge type mobile phone is one in which a display unit casing and an operation unit casing are connected by a biaxial hinge (see, for example, Patent Document 1). By rotating the display housing around the first axis of the biaxial hinge with respect to the operation housing, these housings can be opened and closed relatively, and the display housing can be opened and closed. On the other hand, by rotating about the second axis of the biaxial hinge, these cases can be reversed relatively.

By the way, when the front and rear surfaces of the display unit casing are directed left and right, that is, when the thickness direction of the display unit casing is parallel to the width direction of the operation unit casing, the angle on the biaxial hinge side of the display unit casing The part protrudes to the front of the operation unit casing. If both casings are relatively closed from this state, the corners of the display unit casing come into contact with the front surface of the operation unit casing. In order to prevent damage due to such contact, a low-hardness cushioning member is attached to the corner of the display unit housing (see Patent Document 1).
JP 2005-277601 A

  However, in recent years, mobile phones have been downsized, and the space and structure for attaching such a cushioning member to the housing has become smaller. Therefore, when attaching the buffer member to the housing, the work is a fine work. In particular, the housing is a combination of two cases, but after the cushioning member is assembled to one of the cases, the cases are combined, so that when the cases are combined, the cushioning member will come off the case. There is. Therefore, the efficiency of assembly work was not so good.

  Therefore, the problem to be solved by the present invention is to prevent the buffer member from coming off when the two cases of the casing are combined after the buffer member is attached.

The invention according to claim 1 for solving the above problems is as follows:
Two casings are connected by a biaxial hinge, and a buffer member is provided at a corner on the biaxial hinge side of the casing in the electronic device in which these casings can be relatively opened and closed and inverted by the biaxial hinge. In the cushioning member mounting structure to be mounted,
The case is a combination of two cases that are bonded together,
A middle case is housed inside the housing,
A rib is provided on one of the two cases at a position facing the side surface of the middle case,
The buffer member has an arm and a head formed at an end of the arm;
A protrusion is formed on one of the side surface of the middle case and the arm, and a hole is formed on the other.
The protrusion is inserted into the hole;
The arm extends from the protrusion to a corner of the housing, and is sandwiched between the rib and the side surface of the middle case;
The shock absorber mounting structure is characterized in that the head is disposed at a corner of the housing.

The invention according to claim 2
2. The shock absorber mounting structure according to claim 1, wherein a recess is formed in the arm, and the rib is fitted into the recess. 3.

The invention according to claim 3
3. The arm is inserted between the rib and the side surface of the middle case by rotating the arm from a standing state to a lying state with the projection as a fulcrum. It is the buffer member attachment structure as described in above.

The invention according to claim 4
The arm is slid in the longitudinal direction of the hole in a state where the hole is formed long and the protrusion is inserted into the hole, so that the arm is interposed between the rib and the side surface of the middle case. It is inserted, It is a buffer member attachment structure of Claim 1 or 2 characterized by the above-mentioned.

The invention according to claim 5
Two casings are connected by a biaxial hinge, and a buffer member is provided at a corner on the biaxial hinge side of the casing in the electronic device in which these casings can be relatively opened and closed and inverted by the biaxial hinge. In the mounting method of the buffer member to be attached,
An intermediate case is provided in one of the cases divided into two cases,
A rib is provided on the one case at a position facing the side surface of the middle case,
A protrusion is formed on one of the arm of the buffer member and the side surface of the middle case, and a hole is formed on the other.
Insert the protrusion into the hole with the arm upright,
By rotating the arm with the protrusion as a fulcrum, the arm is inserted between the rib and the side surface of the middle case, and the arm extends from the protrusion to a corner of the housing, and the arm The shock absorber mounting method is characterized in that the head of the shock absorber formed at the end of the shock absorber is disposed at a corner of the casing.

The invention according to claim 6
Two casings are connected by a biaxial hinge, and a buffer member is provided at a corner on the biaxial hinge side of the casing in the electronic device in which these casings can be relatively opened and closed and inverted by the biaxial hinge. In the mounting method of the buffer member to be attached,
An intermediate case is provided in one of the cases divided into two cases,
A rib is provided on the one case at a position facing the side surface of the middle case,
A protrusion is formed on one of the arm of the buffer member and the side surface of the middle case, and a long hole is formed on the other,
The protrusion is inserted into the hole, the arm extends from the protrusion to a corner portion of the housing, and the arm is slid in the longitudinal direction of the hole to thereby move the arm to the rib and the middle case. The cushioning member mounting method is characterized in that the cushioning member is inserted between the side surface and the head of the cushioning member formed at the end of the arm is disposed at a corner of the casing.

The invention according to claim 7 provides:
The shock absorber mounting according to claim 5 or 6, wherein a recess is formed in the arm, and the rib is fitted into the recess when the arm is inserted between the rib and a side surface of the middle case. Is the method.

  According to the present invention, the protrusion formed on one of the side surface of the middle case and the arm is inserted into the hole formed on the other side, and the arm is further inserted between the rib and the side surface of the middle case. Since it is pinched | interposed, a buffer member is restrained reliably with respect to the case of a middle case and a housing | casing. Therefore, when the two cases of the housing are combined, it is possible to prevent the buffer member from being detached, and the assembly work efficiency is improved.

  Hereinafter, preferred embodiments for carrying out the present invention will be described with reference to the drawings. However, the embodiments described below have various technically preferable limitations for carrying out the present invention, but the technical scope of the present invention is not limited to the following embodiments and illustrated examples. Absent.

FIG. 1 is a perspective view showing a biaxial hinge type mobile phone 1.
In the mobile phone 1, the first housing 2 is connected to the second housing 4 by the biaxial hinge portion 3. A display screen 11 is provided on the front surface 10 of the first housing 2. On the other hand, on the front surface 6 of the second housing 4, an operation unit 9 including a plurality of keys is provided.

  A support portion 5 is provided on the front surface 6 of the second housing 4 on the first housing 2 side, and the biaxial hinge portion 3 is rotatably connected to the support portion 5. Thereby, the biaxial hinge part 3 can be rotated relative to the second casing 2, and the axis 7 of the rotation is parallel to the width direction of the second casing 4. The first housing 2 is rotatably connected to the biaxial hinge portion 3 at the end on the second housing 4 side, and the axis 8 of the rotation is parallel to the longitudinal direction of the first housing 2. The axis 7 and the axis 8 are orthogonal.

  The opening and closing of the first housing 2 with respect to the second housing 4 is performed by rotating the first housing 2 with respect to the second housing 4 about the axis 7, and before and after the first housing 2. The inversion is performed by rotating the first casing 2 relative to the second casing 4 about the axis 8. When the thickness front surface and the rear surface of the first housing 2 are turned to the left and right by rotating around the axis 8, one corner 12 of the first housing 2 (two of the four corners of the first housing 2 are The corner 12) on the side of the shaft hinge 3 is projected toward the lower end 13 on the side opposite to the biaxial hinge 3 of the second housing 4. Therefore, when the first housing 2 is closed with respect to the second housing 4 by rotation around the axis 7, one corner 12 of the first housing 2 is brought into contact with the front surface 6 of the second housing 4. Contact. In order to prevent damage to the front surface 6 of the second housing 4 due to such contact, a buffer member 15 is attached to the corner portion 12. Hereinafter, the mounting structure of the buffer member 15 will be specifically described.

FIG. 2 is an exploded perspective view showing the first housing 2 in an exploded manner.
As shown in FIG. 2, the front side of the first casing 2 is constituted by a front case 21, the back side of the first casing 2 is constituted by a rear case 22, and the front case 21 and the rear case 22 are bonded together. A housing space is formed inside the first housing 2 by joining with screws 23, 23. Both the front case 21 and the back case 22 are made of resin.

  An intermediate case 24 made of a metal material is accommodated in the first casing 2, and the intermediate case 24 is fixed to the first casing 2 with screws 23, 23. A liquid crystal display panel 25 is mounted in a recess on the front side of the middle case 24, and the liquid crystal display panel 25 is also housed in the first housing 2 together with the middle case 24. Note that a part of the front surface 10 of the first housing 2 is transparent, and the liquid crystal display panel 25 faces the transparent part, so that the transparent part is the display screen 11.

  3 to 5 are exploded perspective views showing the corner portion 12 and its periphery in an enlarged manner. A protrusion 27 is provided on the side surface 26 of the middle case 24 at the end near the corner 12. Further, a rib 29 is formed on the side surface 28 of the back case 22 near the corner 12, and the rib 29 is integrally formed with the back case 22. The rib 29 may be molded separately from the back case 22 and the rib 29 may be attached to the back case 22.

  The rib 29 is provided so as to protrude toward the front case 21. The rib 29 faces the side surface 26 of the middle case 24, the rib 29 is separated from the side surface 26 of the middle case 24, and a gap is formed between the rib 29 and the side surface 26 of the middle case 24. The rib 29 is closer to the corner 12 than the protrusion 27.

  The buffer member 15 has a head portion 31 and an arm 32, and the head portion 31 and the arm 32 are integrally formed of a resin or a rubber elastic material. The elastic modulus of the material of the buffer member 15 is smaller than the elastic modulus of the material of the front case 21 and the rear case 22. The buffer member 15 may be made of other materials as long as it has a low hardness.

  A shaft hole 33 is formed at the tip of the arm 32, and the shaft hole 33 penetrates the arm 32 from side to side. A head portion 31 is formed at the other end of the arm 32, the head portion 31 is provided in a flange shape, and the head portion 31 protrudes left and right and up and down with respect to the arm 32. In addition, a recess 34 is formed in the arm 32, and the recess 34 is located between the head portion 31 and the shaft hole 33. A protrusion 27 is inserted into the shaft hole 33, and the arm 32 extends from the protrusion 27 to the corner portion 12. Further, a rib 29 is fitted into the recess 34, and the arm 32 is sandwiched between the rib 29 and the side surface 26 of the middle case 24.

  In the corner portion 12, a recess 41 is formed in the back case 22, a recess 42 is formed in the front case 21, and a notch 43 is formed in the recess 42. In the state where the front case 21 and the rear case 22 are bonded together, the arm 32 of the buffer member 15 is inserted into the notch 43, the head 31 is disposed outside the front case 21 and the rear case 22, and the head 31 is The head portion 31 is formed into the corner portion 12 in the recess 41 and the recess 42. Here, the back case 22 is nested and is fitted to the front case 21, and the side surface 28 of the back case 22 is inside the side surface 44 of the front case 21. Therefore, the rib 29, the protrusion 27, and the arm 32 are covered on the outside by the side surface 44 of the front case 21.

A method for attaching the buffer member 15 will be described. Here, FIGS. 3 to 5 sequentially show the steps when attaching the buffer member 15.
As shown in FIGS. 3 and 4, before attaching the buffer member 15, the front case 21 is in a state removed from the back case 22, and the middle case 24 is nested and provided in the back case 22. A liquid crystal display panel 25 is mounted on the middle case 24.

  First, the protrusion 27 is inserted into the shaft hole 33, and the buffer member 15 is set on the side surface 26 of the middle case 24. At this time, the arm 32 is in an upright state, and the rib 29 is not fitted into the recess 34.

  Next, as shown in FIGS. 4 and 5, the arm 32 is rotated with the projection 27 as a fulcrum while the arm 32 is supported by the projection 27, and the arm 32 is laid down. Since the protrusion 27 is inserted into the shaft hole 33 and the arm 32 is supported by the protrusion 27, the arm 32 can be easily rotated.

  By rotating the arm 32, the rib 29 is fitted into the recess 34, the arm 32 is inserted into the gap between the rib 29 and the side surface 26 of the middle case 24, and the head portion 31 is stored in the recess 41 of the back case 22. When the rib 29 tries to enter the recess 34, the arm 32 or the like is elastically deformed, and when the rib 29 is fitted into the recess 34, the arm 32 or the like is restored. Since the arm 32 is sandwiched between the side surface 26 of the middle case 24 and the rib 29, the projection 27 is difficult to be removed from the shaft hole 33, and the projection 27 is inserted into the shaft hole 33. It is difficult to escape from the gap between the side surface 26 and the rib 29. In particular, since the rib 29 is fitted in the recess 34, the buffer member 15 can be prevented from dropping off almost completely.

  Next, the front case 21 is attached to the rear case 22, and the rear case 22 is nested and assembled to the front case 21. At this time, the arm 32 is inserted into the notch 43 of the front case 21, and the head portion 31 of the buffer member 15 is stored in the recess 42. Since the buffer member 15 is fixed to the back case 22 and the middle case 24, the front case 21 and the back case 22 can be easily assembled.

  The mounting method as described above is a simple operation, and the cushioning member 15 can be stably and easily mounted regardless of the orientation of the front case 21 and the rear case 22. An operation error can be prevented when the buffer member 15 is attached.

  Further, since the recess 32 is provided in the arm 32 and the rib 29 is fitted in the recess 34, the installation position of the rib 29 can be brought close to the side surface 26 of the middle case 24. The thickness up to the outer side surface (side surface 44 of the front case 21) of the single casing 2 does not increase. That is, the proportion of the first housing 2 occupied by the display screen 11 in the front surface 10 is not reduced.

  Of course, the head 31 of the buffer member 15 can prevent damage caused by the corner 12 of the first housing 2 coming into contact with the front surface 6 of the second housing 4.

  Note that the present invention is not limited to the above-described embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention.

  In the above embodiment, the shaft hole 33 is formed in the arm 32 and the protrusion 27 is formed on the side surface 26 of the middle case 24. However, the reverse may be possible. That is, in FIGS. 2 to 5, the shaft hole may be formed at the position where the protrusion 27 is formed, and the protrusion may be formed at the position where the shaft hole 33 is formed. Even in this case, when attaching the buffer member 15, the ribs 29 are formed in the recesses 34 by inserting the projections of the arms 32 into the shaft holes of the side surfaces 26 while rotating the arms 32 so that the arms 32 fall down. The arm 32 is inserted between the rib 29 and the side surface 26, and the head 31 is received in the recess 41.

  In the above embodiment, the buffer member 15 is attached to one (corner portion 12) of the two corners on the biaxial hinge portion 3 side of the first housing 2, but the buffer member is similarly applied to the other corner portion. 15 may be attached. When the buffer member 15 is attached to the corner adjacent to the corner 12, the attachment structure is provided symmetrically with respect to the attachment structure on the corner 12 side.

  In the above-described embodiment, a mobile phone has been described as an example of an electronic device. May be applied.

[Modification]
6 to 8 are perspective views showing modified examples. 6-8, the same code | symbol is attached | subjected with respect to the part corresponding to the part shown by FIGS. 1-5. Hereinafter, differences between FIGS. 6 to 8 and FIGS. 1 to 5 will be mainly described. 6-7 has shown the process at the time of attaching the buffer member 15 in order.

  As shown in FIG. 6, the arm 32 is not formed with a shaft hole, but is formed with a guide hole 35, and the guide hole 35 is elongated in the longitudinal direction of the arm 32. A guide hole 35 penetrates the arm 32 from side to side. The recess 36 formed in the arm 32 is formed closer to the tip of the arm 32 than the guide hole 35.

  The protrusion 57 is formed on the side surface 26 of the middle case 24, the rib 59 is formed on the rear case 22, the rib 29 faces the side surface 26 of the middle case 24, and a gap is formed between the rib 59 and the side surface 26 of the middle case 24. Is formed. The protrusion 57 is closer to the corner portion 12 than the rib 59.

  A protrusion 57 is inserted into the guide hole 35, the arm 32 extends from the protrusion 57 to the corner portion 12, a rib 59 is fitted into the recess 36, and the arm 32 is sandwiched between the rib 29 and the side surface 26 of the middle case 24. It is.

  Although the guide hole 35 is formed in the arm 32 and the protrusion 57 is formed on the side surface 26 of the middle case 24, the projection is formed on the arm 32 and the guide hole is formed on the side surface 26 of the middle case 24. May be.

A method for attaching the buffer member 15 will be described.
First, as shown in FIG. 7, the protrusion 57 is inserted into the guide hole 35, and the buffer member 15 is set on the side surface 26 of the middle case 24. At this time, the arm 32 extends from the protrusion 57 to the corner 12 of the first housing 2, and the rib 59 is not fitted into the recess 36.

  Next, as shown in FIGS. 7 and 8, the arm 32 is slid to the rib 59 while the arm 32 is supported by the protrusion 57. At this time, the arm 32 is guided by the protrusion 57 and the guide hole 35. By sliding the arm 32, the rib 59 is fitted into the recess 36, the arm 32 is inserted into the gap between the rib 59 and the side surface 26 of the middle case 24, and the head 31 is stored in the recess 41 of the back case 22. When the rib 59 tries to enter the recess 36, the arm 32 and the like are elastically deformed. When the rib 59 is fitted into the recess 36, the arm 32 and the like are restored.

  Next, the front case 21 (provided in the same manner as that shown in FIGS. 2 and 5) is attached to the rear case 22, and the rear case 22 is nested and assembled to the front case 21.

  Also in this modified example, the protrusion 57 is inserted into the guide hole 35, the rib 59 is fitted into the recess 36, and the arm 32 is sandwiched between the rib 59 and the side surface 26 of the middle case 24. The buffer member 15 can be prevented from falling off when the front case 21 is assembled to the front case 21.

  Except for what has been described above, this modification is the same as the case of FIGS. 1 to 5, including portions not shown in FIGS. 6 to 8.

FIG. 1 is a perspective view showing a mobile phone according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the first casing of the mobile phone. FIG. 3 is an enlarged perspective view showing a corner portion of the first casing. FIG. 4 is an enlarged perspective view showing a corner portion of the first casing. FIG. 5 is an enlarged perspective view showing a corner portion of the first casing. FIG. 6 is an enlarged perspective view showing a corner portion of the first housing in the modified example. FIG. 7 is an enlarged perspective view showing a corner portion of the first housing in the modified example. FIG. 8 is an enlarged perspective view showing a corner portion of the first housing in the modified example.

Explanation of symbols

1 Mobile phone
2 First housing
3 Biaxial hinge
4 Second housing
15 cushioning member
21 Front case
22 Back case
24 middle case
26 side
27 Protrusions
29, 59 ribs
31 head
32 arms
33 Shaft hole
34, 36 hollow
35 Guide hole

Claims (7)

Two casings are connected by a biaxial hinge, and a buffer member is provided at a corner on the biaxial hinge side of the casing in the electronic device in which these casings can be relatively opened and closed and inverted by the biaxial hinge. In the cushioning member mounting structure to be mounted,
The case is a combination of two cases that are bonded together,
A middle case is housed inside the housing,
A rib is provided on one of the two cases at a position facing the side surface of the middle case,
The buffer member has an arm and a head formed at an end of the arm;
A protrusion is formed on one of the side surface of the middle case and the arm, and a hole is formed on the other.
The protrusion is inserted into the hole;
The arm extends from the protrusion to a corner of the housing, and is sandwiched between the rib and the side surface of the middle case;
The cushioning member mounting structure, wherein the head is disposed at a corner of the housing.   The cushioning member mounting structure according to claim 1, wherein a recess is formed in the arm, and the rib is fitted into the recess.   3. The arm is inserted between the rib and the side surface of the middle case by rotating the arm from a standing state to a lying state with the projection as a fulcrum. The shock-absorbing member mounting structure described in 1.   The arm is slid in the longitudinal direction of the hole in a state where the hole is formed long and the protrusion is inserted into the hole, so that the arm is interposed between the rib and the side surface of the middle case. The cushioning member mounting structure according to claim 1 or 2, wherein the cushioning member mounting structure is inserted. Two casings are connected by a biaxial hinge, and a buffer member is provided at a corner on the biaxial hinge side of the casing in the electronic device in which these casings can be relatively opened and closed and inverted by the biaxial hinge. In the mounting method of the buffer member to be attached,
An intermediate case is provided in one of the cases divided into two cases,
A rib is provided on the one case at a position facing the side surface of the middle case,
A protrusion is formed on one of the arm of the buffer member and the side surface of the middle case, and a hole is formed on the other.
Insert the protrusion into the hole with the arm upright,
By rotating the arm with the protrusion as a fulcrum, the arm is inserted between the rib and the side surface of the middle case, and the arm extends from the protrusion to a corner of the housing, and the arm A cushioning member mounting method, wherein a head portion of the cushioning member formed at an end of the cushioning member is disposed at a corner of the casing. Two casings are connected by a biaxial hinge, and a buffer member is provided at a corner on the biaxial hinge side of the casing in the electronic device in which these casings can be relatively opened and closed and inverted by the biaxial hinge. In the mounting method of the buffer member to be attached,
An intermediate case is provided in one of the cases divided into two cases,
A rib is provided on the one case at a position facing the side surface of the middle case,
A protrusion is formed on one of the arm of the buffer member and the side surface of the middle case, and a long hole is formed on the other,
The protrusion is inserted into the hole, the arm extends from the protrusion to a corner portion of the housing, and the arm is slid in the longitudinal direction of the hole to thereby move the arm to the rib and the middle case. A cushioning member mounting method, wherein the cushioning member is inserted between a side surface and a head portion of the cushioning member formed at an end of the arm is disposed at a corner of the casing.   The shock absorber mounting according to claim 5 or 6, wherein a recess is formed in the arm, and the rib is fitted into the recess when the arm is inserted between the rib and a side surface of the middle case. Method.

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