JP2007095079A - Electronic apparatus and built-in unit cushioning member for electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a built-in unit cushioning member for electronic apparatus capable of sufficiently absorbing a relatively larger shock than a conventional elastic cushioning member such as a foaming resin. <P>SOLUTION: A shock absorber 24 is put between the built-in unit, such as an HDD 21, and an inner wall surface of a case body 19. In the shock absorber 24, a minor diameter part or a so-called constriction, is formed between an outer edge received by the inner wall surface of the case body 19 and an inner edge for receiving the HDD 21. When a great shock is added to the case body 19, the shock absorber 24 is broken at the constriction. A shock load added to the constriction is converted into an energy of rupture. The shock energy is consumed sufficiently and as a result, the HDD 21 is protected from the shock. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electronic device in which a built-in unit such as a hard disk drive (HDD) or a liquid crystal display device (LCD) is incorporated, and in particular, a shock-absorbing member that protects the built-in unit from a large impact applied to the casing of such an electronic device. About.

  Generally, in an electronic device such as a personal computer (personal computer), a cushioning member such as a foaming resin is sandwiched between a housing of the electronic device and a built-in unit such as a hard disk drive (HDD) housed in the housing. . According to such a buffer member, even if an impact load such as a collision is applied to the casing of the electronic device, the impact energy is consumed in the form of elastic deformation of the buffer member. The vibration of the built-in unit due to the impact can be suppressed. If vibration is suppressed in this way, damage or malfunction of the built-in unit can be avoided as much as possible. Protection of the built-in unit is realized.

  If the portability of an electronic device is improved as in recent years, the opportunity to apply a large impact load to the electronic device increases, such as a scene of dropping from a high position. When such a large impact load is applied, the shock energy is not completely consumed by the aforementioned buffer member, and as a result, the built-in unit collides with the inner wall surface of the housing. A relatively large impact energy is transmitted to the built-in unit. There is a concern that such impact energy may cause failure, damage or malfunction of the built-in unit.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a buffer member for a built-in unit for electronic equipment that can sufficiently absorb a relatively large impact compared to a conventional elastic buffer member. To do.

  To achieve the above object, according to the first aspect of the present invention, a housing, a built-in unit accommodated in the housing, and a buffer that is disposed between the built-in unit and the housing and undergoes plastic deformation under an impact load. An electronic apparatus comprising the member is provided.

  According to such an electronic device, when an impact is applied to the casing when the electronic device is dropped, the buffer member is plastically deformed by receiving an impact load. At this time, the impact load is converted into plastic deformation energy. That is, the impact energy can be sufficiently consumed by the buffer member. Therefore, the impact transmitted from the buffer member to the built-in unit is suppressed. The built-in unit can be well protected from impact. According to the verification by the inventors, it was confirmed that such a buffer member surely absorbs a large impact as compared with the conventional elastic buffer member. Plastic deformation can include so-called fracture.

  Here, for example, when the built-in unit guarantees the operation with respect to the impact load having a specified strength, the buffer member may be given a strength enough to cause plastic deformation with an impact load exceeding the specified strength. At this time, it is desirable that a high strength exceeding the strength of the buffer member is given to the housing.

  The shock-absorbing member used in such an electronic device includes, for example, an impact absorber that is plastically deformed by an impact load having a specified strength, a first receiving surface that is defined at one end of the impact absorber and receives the built-in unit, and an impact absorption member. What is necessary is just to provide the 2nd receiving surface prescribed | regulated at the other end of a body and receiving the impact added from the outside.

  Here, the shock absorber includes a first end that defines the first receiving surface, a second end that defines the second receiving surface, and a constriction formed between the first and second ends. Should be provided. When the constriction is formed in this way, the shock absorber can be stably received by the built-in unit or the housing on the first receiving surface and the second receiving surface having a large area, and at the same time, the strength can be weakened by the constriction. Therefore, when an impact load is applied to the shock absorber, stress concentration is caused by the constriction. As a result, plastic deformation, that is, fracture is caused by the constriction relatively easily. In addition, if the constriction extends at least along a reference line that intersects the first receiving surface at a predetermined inclination angle, the constriction can be reliably destroyed by the impact load acting on the first receiving surface from the vertical direction.

  According to a second aspect of the present invention, a rigid body region that is plastically deformed by a first level impact load and a buffer region that is plastically deformed by a second level impact load that is smaller than the first level are defined. An electronic device casing is provided.

  According to such a case for an electronic device, when a second level impact load, that is, a shock load having a specified strength is received in the buffer region, the buffer region is plastically deformed without being plastically deformed in the rigid region. As a result of the impact energy being converted into plastic deformation energy, the impact energy is fully consumed in the buffer region. For example, even when the built-in unit is incorporated in the housing, the built-in unit can be sufficiently protected from impact. Plastic deformation can include so-called fracture. A so-called foot may be attached to the buffer region. The foot can increase the probability of receiving an impact in the buffer area.

  According to the third invention, the first elastic member attached to the corner portion of the electronic device casing and formed with the first level of rigidity, and laminated on the outer surface of the first elastic member, the first level And a second elastic member formed to have a smaller second level of rigidity.

  In an electronic device to which such a buffer member is attached, a relatively weak impact can be sufficiently absorbed by the second elastic member. The shock is not transmitted to the case. The built-in unit accommodated in the housing can be sufficiently protected from impact. When a relatively strong impact is applied, the elastic displacement of the second elastic member reaches a limit. As a result, the impact is transmitted to the first elastic member. A strong impact is absorbed by the first elastic member. Strong impact is not transmitted to the case. The built-in unit accommodated in the housing can be sufficiently protected from a strong impact. As described above, according to the laminated structure of the first and second elastic members, a sufficient shock absorbing force is exerted for a wide range of impacts as compared with the case where the first elastic member and the second elastic member are individually used. Can be done. And compared with the case where a 2nd elastic member is used independently, the thickness of a buffer member can be suppressed as much as possible.

  According to the fourth aspect of the present invention, the mounting member is fixed to the electronic device casing, and the contact piece stands up from the mounting member and receives the built-in unit, and at least the contact piece between the electronic device casing and the built-in unit. Is provided with a buffer member for a built-in unit for electronic equipment, characterized in that a bent portion is defined.

  According to the buffer member for a built-in unit for electronic equipment, a sufficient elastic force is applied to the contact piece at the bent portion. Therefore, for example, even when a large impact is applied to the casing when the electronic device is dropped, the impact load can be converted into elastic deformation energy according to the deformation of the bent portion. The impact load is fully consumed by the contact piece. As a result, the built-in unit can be sufficiently protected from a large impact.

  At this time, it is desirable that the contact pieces are arranged in at least two places and sandwich the space occupied by the built-in unit. Thus, when the built-in unit is sandwiched between the contact pieces, the built-in unit can be supported only by such contact pieces. As a result, it is possible to reliably avoid the impact from being transmitted to the built-in unit from other than the contact piece.

  The contact piece as described above may be formed from a metal material such as aluminum or copper, or may be formed from a hard plastic material having equivalent rigidity. However, the contact piece is given at least rigidity sufficient to hold the original shape alone. Preferably, the contact piece only needs to have a rigidity that can sufficiently absorb a large impact with a relatively small displacement stroke.

  According to a fifth aspect of the present invention, there is provided a buffer for a built-in unit for an electronic device, comprising: a mounting member fixed to the housing for the electronic device; and an elastic piece that is integrally formed with the mounting member and receives the built-in unit. A member is provided.

  In general, a mounting member that attaches a built-in unit to a housing, that is, a frame, or the like requires a considerable degree of rigidity compared to a buffer member such as a foaming resin. Therefore, if the elastic piece is formed integrally with such an attachment member, the elastic piece can be given rigidity enough to absorb a large impact with a relatively small displacement stroke. Such attachment members and elastic pieces may be molded from a metal material such as aluminum or copper, or may be molded from a hard plastic material having equivalent rigidity. In applying an elastic force to the elastic piece, a bent portion may be formed in the elastic piece.

  According to the sixth aspect of the present invention, the connecting member that is partitioned in the housing for the electronic device and is fixed in the receiving space that receives the built-in unit, and is connected to the connecting member and hangs in the action direction of gravity in the receiving space. A shock-absorbing member for a built-in unit for electronic equipment, comprising a suspension member.

  When the built-in knit is fixed to the suspension member, the built-in unit is suspended in the direction of gravity in the accommodating space in the housing. Thus, the built-in unit can be supported in a floating state. For example, when an impact is applied to the housing from below when the electronic device is dropped, the impact load is transmitted to the built-in unit only from the upper connecting member. The propagation distance of the impact load increases. The impact load can be attenuated during propagation. The built-in unit can be well protected from impact.

  The suspension member may be a spherical pendulum. According to the function of such a suspension member, the pendulum movement of the built-in unit can be allowed. As a result, the impact load can be converted into kinetic energy. The impact load can be consumed more efficiently. Therefore, the built-in unit can be more effectively protected from impact.

  According to a seventh aspect of the present invention, the apparatus includes: an attachment member fixed to the electronic device casing; and at least one pair of projecting surfaces that protrude from the surface of the attachment member and sandwich the occupied space of the built-in unit. A buffer member for a built-in unit for an electronic device is provided.

  For example, when the built-in unit is sandwiched between the protruding surfaces by an electronic device, the built-in unit can be held in a floating state between the pair of protruding surfaces. At this time, the built-in unit can be allowed to move in the tangential direction of each protruding surface. That is, one moving plane of the built-in unit is defined. For example, when a large impact is applied to the housing in a scene such as a fall of an electronic device, the built-in unit is moved along a defined movement plane. In accordance with such movement, the impact load is converted into movement energy. The impact load is fully consumed. That is, a large impact is not transmitted to the built-in unit. The built-in unit can be well protected from impact.

  According to the eighth invention, the housing, the built-in unit housed in the housing, the projecting piece fixed to one of the housing and the built-in unit, and the other of the housing and the built-in unit are fixed, Provided is an electronic device comprising: a receiving member that defines a recess facing the projecting piece; and an elastic body that crosses between the projecting piece and the recess while exhibiting a predetermined tension.

  In such an electronic device, a tensile force can act on the elastic body as the projecting piece enters the recess. The elastic body expands. In accordance with this extension, the impact load is converted into elastic deformation energy. The impact load is sufficiently consumed by the elastic body. The built-in unit can be well protected from relatively small impacts.

  Further, when the protruding piece is received in the recess, the elastic body is sandwiched between the protruding piece and the inner surface of the recess. Therefore, compression deformation is caused in the elastic body. The impact load can be sufficiently consumed by such compression deformation. Thus, the built-in unit can be sufficiently protected from a relatively large impact.

  According to the ninth aspect of the present invention, there is provided an electronic apparatus comprising a housing and a reinforcing beam connecting corners facing each other on the bottom plate of the housing. Generally, in an electronic device casing, four ridge lines are formed between four side walls rising from the bottom plate and the bottom plate. Such a ridgeline can improve the rigidity of the casing. In addition, when the reinforcing beam is combined with such a ridgeline, the rigidity of the housing can be increased. Deflection such as twisting of the bottom plate can be effectively prevented.

  According to the tenth aspect of the invention, there is provided an electronic apparatus comprising the buffer member fixed to the outer surface of the display housing on the back side of the display unit.

  Even when a large impact is applied to the outer surface of the display housing in such a situation where the electronic device is dropped, such impact can be sufficiently absorbed by the buffer member. Therefore, a large impact is not transmitted to the display casing. Deformation such as bending of the display housing can be sufficiently suppressed. The display unit can be reliably protected from impact.

  As described above, according to the present invention, there is provided a buffer member for a built-in unit for electronic equipment that can sufficiently absorb a relatively large impact compared to a conventional elastic buffer member such as a foamable resin.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 schematically shows an external appearance of an electronic apparatus, that is, a portable notebook personal computer (so-called notebook personal computer) 11 according to a first embodiment of the present invention. The notebook computer 11 includes a device main body 12 in which, for example, a motherboard (not shown) is incorporated, and a display panel 13 that is swingably connected to the device main body 12. As is well known, for example, a CPU (Central Processing Unit) and a memory are mounted on the motherboard. In the arithmetic processing of the CPU, the motherboard controls input devices such as the keyboard 14 and the pointing device 15. For example, a liquid crystal display (LCD) unit 16 is incorporated in the display panel 13. The result of the arithmetic processing of the CPU can be displayed on the screen of the LCD unit 16, for example.

  As shown in FIG. 2, the device main body 12 includes a flat rectangular parallelepiped housing 17. The housing 17 includes a housing body 19 that partitions the accommodation space 18. The accommodation space 18 opens at the back surface (bottom surface) of the device main body 12. According to such a casing main body 19, for example, when the apparatus main body 12 is installed on a desk when the notebook computer 11 is used, the opening of the accommodation space 18 faces the surface of the desk. The housing body 19 may be molded from a metal material such as aluminum or magnesium or a plastic material such as FRP (fiber reinforced plastic).

  The housing 17 accommodates a built-in unit, that is, a hard disk drive (HDD) 21. The HDD 21 is received in the accommodation space 18. When the HDD 21 is received in the housing space 18, the outer wall surface, that is, the upper surface and the peripheral wall surface of the HDD 21 face the inner wall surface of the housing body 19.

  The opening of the accommodation space 18 is closed by the lid 22. The lid 22 may be screwed to the housing body 19 for example. When the lid plate 22 is attached, the outer wall surface, that is, the bottom surface of the HDD 21 in the accommodation space 18 faces the inner wall surface of the lid body 22. The lid 22 may be molded from a metal material such as aluminum or magnesium or a plastic material such as FRP (fiber reinforced plastic).

  Referring also to FIG. 3, a buffer member is provided between the inner wall surface of the housing body 19 and the outer wall surface, that is, the upper surface and the peripheral wall surface of the HDD 21, and between the inner wall surface of the lid 22 and the outer wall surface, ie, the bottom surface of the HDD 21. (Mechanism) 23 is arranged. The buffer member 23 includes an impact absorber 24 that is destroyed by a predetermined impact load. The shock absorbers 24 may be arranged at equal intervals for each outer wall surface of the HDD 21. In particular, the shock absorbers 24 may be arranged in a grid, for example, on the top surface or bottom surface of the HDD 21 (see, for example, FIG. 2).

  An inward receiving surface 25 that receives the outer wall surface of the HDD 21 is defined at one end of each shock absorber 24. On the other hand, an outward receiving surface 26 extending in parallel to the inward receiving surface 25 is defined at the other end of each shock absorber 24. The outward receiving surface 26 is received on the inner wall surface of the housing body 19 and the lid body 22. The shock absorber 24 is bonded to the inner wall surface of the housing main body 19 and the lid body 22 with an outward receiving surface 26. For example, an adhesive or a double-sided adhesive tape may be used for adhesion.

  FIG. 4 shows a shock absorber 24a according to a first specific example. The shock absorber 24a has an inverted conical inner end portion 28 that defines an inward receiving surface 25 with a circular bottom surface, and a conical outer end portion 29 that similarly defines an outward receiving surface 26 with a circular bottom surface. Prepare. A constriction 30 as a small diameter portion is formed between the inner end portion 28 and the outer end portion 29. The constriction 30 connects the vertices of the inner end portion 28 and the outer end portion 29 to each other. Moreover, the constriction 30 extends along a reference line 31 that intersects at least the outward receiving surface 26 with a predetermined inclination angle α. However, the shapes of the inner end portion 28, the outer end portion 29, and the constriction 30 are not limited to these shapes. In such a shock absorber 24a, the inward receiving surface 25 and the outward receiving surface 26 having a large area can be stably received by the housing 17 and the HDD 21, and at the same time, the strength can be reduced by the constriction 30. The shock absorber 24a may be molded from a soft plastic material such as polyethylene plastic or a metal material.

  Now, assume a case where an impact is applied to the housing 17 when the notebook computer 11 is dropped. For example, as shown in FIG. 5, when the impact load F <b> 1 acts on the outward receiving surface 26 from the vertical direction, the shock absorber 24 is crushed between the housing 17 and the HDD 21. At this time, in the shock absorber 24, stress concentration is caused by the constriction 30 having a small cross-sectional area. Moreover, since the axial center of the constriction 30 intersects the outward receiving surface 26 at an inclination angle α, a large shear stress acts on the constriction 30. The neck 30 is destroyed by the shear stress. That is, the shock absorber 24 is divided at the breaking line 32.

  Thus, the impact load F1 applied to the constriction 30 is converted into fracture energy. The impact energy is sufficiently consumed by the impact absorber 24a. The impact energy does not reach the inward receiving surface 26 of the shock absorber 24a. That is, a large impact is not transmitted to the HDD 21. The HDD 21 can be sufficiently protected from impact.

  In general, the hard disk drive (HDD) 21 guarantees operation against an impact load of a specified strength or less. This prescribed strength is significantly lower than other components incorporated in the notebook computer 11. If the impact resistance of the HDD 21 is enhanced, the impact resistance of the notebook computer 11 as a whole can also be enhanced. According to the verification conducted by the inventors, it was confirmed that the impact absorber 24a as described above sufficiently absorbs a large impact as compared with the conventional elastic buffer member.

  The shock absorber 24a only needs to be strong enough to be broken by the shock load F1 exceeding the specified strength. In order to realize such strength, for example, the size of the cross section of the constriction 30 may be adjusted. On the other hand, in the shock absorber 24a, a shock absorbing capacity is realized in which the impact load F1 received by the outward receiving surface 26 is reduced to a specified strength or less. In order to realize such a buffering capacity, for example, the hardness of the shock absorber 24a may be adjusted according to the selection of the material or the like.

  FIG. 6 shows an impact absorber 24b according to a second specific example. The shock absorber 24b is connected to the tip of the first wedge portion 35 with a first wedge portion 35 that tapers from the inward receiving surface 25 side toward the outward receiving surface 26 side, and a first connection surface 36. A wedge receiving portion 38 for receiving the tip of the first wedge portion 35 on one plane 37 including the first connection surface 36 is provided. An outward receiving surface 26 is defined in the wedge receiving portion 38.

  Moreover, the shock absorber 24b similarly includes a second wedge portion 39 that tapers from the inward receiving surface 25 side toward the outward receiving surface 26 side. The tip of the second wedge portion 39 is connected to the first wedge portion 35 by a second connection surface 40 that is defined smaller than the first connection surface 36. The first wedge portion 35 receives the tip of the second wedge portion 39 on a flat surface 41 including the second connection surface 40. That is, the first wedge portion 35 functions as a wedge receiving portion with respect to the second wedge portion 39. An inward receiving surface 25 is defined in the second wedge portion 39. Such a shock absorber 24b may be molded from a soft plastic material such as polyethylene plastic or a metal material.

  Now, for example, as shown in FIG. 7A, when an impact load F2 is applied to the outward receiving surface 26 from the vertical direction as described above, the shock absorber 24b is crushed between the housing 17 and the HDD 21. It is. At this time, stress concentration is caused at the second connection surface 40 having the smallest cross-sectional area. As a result, when the strength of the impact load F2 reaches the first level, which is relatively small, the tip of the second wedge portion 39 is placed on one plane 41 of the first wedge portion 35 as shown in FIG. I will bite in. Thus, the impact load F2 applied to the second wedge portion 39 is converted into fracture energy. The shock is alleviated.

  When the second wedge portion 39 bites in this way, stress concentration is caused at the first connection surface 36 having the second smallest sectional area. As a result, when the strength of the impact load F2 reaches a relatively large second level (> first level), as shown in FIG. 7C, the tip of the first wedge portion 35 is positioned at the wedge receiving portion 38. Bite into one plane 37. Thus, the impact load F2 applied to the first wedge portion 35 is converted into fracture energy.

  According to such an impact absorber 24b, the HDD 21 can be sufficiently protected from the impact load F2 having two levels of strength such as the first and second levels. However, the shock absorber 24b as described above may include only the first wedge portion 35 and the wedge receiving portion 38. On the other hand, the shock absorber 24b may include three or more wedge portions that are connected one after another on a connection surface that is formed to be small in stages. According to such an impact absorber 24b, the HDD 21 can be sufficiently protected from impact loads of three or more levels. In the shock absorber 24b as described above, contrary to the structure described above, the wedge portions such as the first and second wedge portions 35 and 39 are directed from the outward receiving surface 26 side toward the inward receiving surface 25 side. It may be tapered.

  FIG. 8 shows an impact absorber 24c according to a third specific example. The shock absorber 24c includes a first short cylinder member 44 whose diameter is increased from the inward receiving surface 25 side toward the outward receiving surface 26 side. An inward receiving surface 25 is defined on the first short cylinder member 44.

  A second short cylinder member 45 is connected to the first short cylinder member 44 from the outward receiving surface 26 side. Similarly, the second short cylinder member 45 is enlarged in diameter from the inward receiving surface 25 side toward the outward receiving surface 26 side. A third short cylinder member 46 is connected to the second short cylinder member 45 from the outward receiving surface 26 side. Similarly, the third short cylinder member 46 is increased in diameter from the inward receiving surface 25 side toward the outward receiving surface 26 side. An outward receiving surface 26 is defined in the third short cylinder member.

  At this time, for example, as apparent from FIG. 9, the thickness t2 of the second short cylinder member 45 is set to be larger than the thickness t1 of the first short cylinder member 44, and at the same time, the thickness of the third short cylinder member 46 is increased. The thickness t3 is set larger than the thickness t2 of the second short cylinder member 45. Such a shock absorber 24c may be molded from a soft plastic material such as polyethylene plastic or a metal material.

  For example, as shown in FIG. 9, when the impact load F <b> 3 acts on the outward receiving surface 26 from the vertical direction as described above, the shock absorber 24 c is crushed between the housing 17 and the HDD 21. At this time, stress concentration is caused by the first short cylinder member 44 having the smallest cross-sectional area. As a result, when the strength of the impact load F3 reaches a relatively small first level, the first short cylinder member 44 is destroyed. The first short cylinder member 44 converts the impact load F3 into fracture energy.

  When the first short cylinder member 44 is destroyed in this way, stress concentration is caused by the second short cylinder member 45 having the second smallest sectional area. As a result, when the strength of the impact load F3 reaches a relatively large second level (> first level), the second short cylinder member 45 is destroyed. The impact load F3 is converted into fracture energy by the second short cylinder member 45.

  When the second short cylinder member 45 is destroyed in this way, stress concentration is caused by the third short cylinder member 46 having the third smallest sectional area. As a result, when the strength of the impact load F3 reaches the third level (> second level), the third short cylinder member 46 is destroyed. The impact load F3 is converted into fracture energy by the third short cylinder member 46.

  According to the shock absorber 24c, the HDD 21 can be sufficiently protected from the impact load F3 having three levels of strength such as the first to third levels. However, the shock absorber 24c as described above may include only the first and second short cylinder members 44 and 45. On the other hand, the shock absorber 24c may include four or more short cylinder members. According to such an impact absorber 24c, the HDD 21 can be sufficiently protected from impact loads of four or more levels. In the shock absorber 24c as described above, contrary to the above-described structure, the short cylinder members such as the first to third short cylinder members 44 to 46 are on the inward receiving surface 25 side rather than the outward receiving surface 26 side. The diameter may be enlarged with.

  FIG. 10 schematically shows an external appearance of an electronic apparatus, that is, a notebook personal computer (so-called notebook personal computer) 51 according to the second embodiment of the present invention. The notebook computer 51 includes the device main body 12 and the display panel 13 as in the first embodiment. The housing 17 of the device main body 12 houses a built-in unit such as the HDD 21 as described above. A so-called foot 52 is fixed to the outer wall surface of the housing 17, that is, the housing body 19. For example, the pedestals 52 may be arranged at the four corners on the back surface of the device main body 12. For example, when the notebook personal computer 51 is used, the device main body 12 is supported on, for example, a desk by four pedestals 52.

  As is apparent from FIG. 11, the casing body 19 of the casing 17 has a rigid body region 53 that spreads with a prescribed thickness t4 and a circumference tread 52 that has a thickness t5 that is thinner than the prescribed thickness t4. For example, a circular buffer area 54 is defined. The prescribed wall thickness t4 gives the casing body 19 a strength that can be broken by the impact load of the first level. On the other hand, according to the thickness t5 that is smaller than the specified thickness t4, the buffer region 54 is given a strength that can be broken by a second level smaller than the first level, that is, an impact load having a specified strength. In other words, the buffer region 54 is more easily destroyed than the rigid region 53. An attachment hole 55 is formed in the center of the buffer region 54.

  The pedestal 52 includes a disk portion 56 that is arranged at a predetermined distance D from the surface of the housing body 19 and a shaft portion 57 that rises from the disk portion 56 toward the surface of the housing body 19. The distal end of the shaft portion 57 is abutted against the buffer region 54 around the attachment hole 55. Such a foot 52 may be molded from a soft plastic material such as polyethylene plastic or a metal material.

  A small-diameter shaft 58 that enters the attachment hole 55 is integrally formed at the tip of the shaft portion 57. A flange 59 extending outward from the small diameter shaft 58 is integrally formed at the tip of the small diameter shaft 58. The flange 59 prevents the small-diameter shaft 58 from coming off from the mounting hole 55. As a result of the housing body 19 being sandwiched between the flange 59 and the tip of the shaft portion 57, relative movement between the foot 52 and the housing body 19 can be prevented. In attaching the foot 52 to the housing body 19, the flange 59 can pass through the attachment hole 55 by utilizing its elastic deformation. In addition, the small-diameter shaft 58 and the flange 59 may be provided by a screw member that is screwed into the tip of the shaft portion 57.

  Now, assume that a shock is applied to the pedestal 52 due to the fall of the notebook computer 51 or the like. As shown in FIG. 11, the disk portion 56 of the foot 52 receives the impact load F4 in a relatively large area. As a result of the impact load F4 being transmitted from the disk portion 56 to the shaft portion 57, the amplified impact load F4 acts on the buffer region 54. When the impact load F4 reaches a prescribed strength, for example, as shown in FIG. Thus, the impact load F4 applied to the foot 52 is converted into fracture energy. The impact energy is fully consumed in the buffer area 54. A large impact is not transmitted to the casing body 19. The HDD 21 accommodated in the housing body 19 can be sufficiently protected from impact.

  In the notebook computer 51 as described above, for example, as shown in FIG. 13, when the buffer area 54 is realized, a cut 60 may be cut in the housing body 19 around the foot 52. According to such a cut 60, when the impact load F <b> 4 is applied to the foot 52 as described above, a crack 61 is caused in the housing body 19 between the cuts 60. The destruction of the buffer region 54 can be achieved by this crack 61. The buffer region 54 as described above may be used together with the buffer member 23 as described above, or may be used in place of the buffer member 23.

  FIG. 14 schematically shows the external appearance of an electronic apparatus, that is, a notebook personal computer (so-called notebook personal computer) 71 according to the third embodiment of the present invention. The notebook personal computer 71 includes the device main body 12 and the display panel 13 as in the first and second embodiments. The housing 17 of the device main body 12 houses a built-in unit such as the HDD 21 as described above. Shock absorbers 72 are attached to the corners of the casing 17, that is, the respective apexes.

  As is apparent from FIG. 15, the shock absorber 72 includes a first elastic member 73 that forms the apex of the housing 17 instead of the housing 17, and a second elasticity that is laminated on the outer surface of the first elastic member 73. And a member 74. When the first elastic member 73 is given the first level of rigidity, the second elastic member 74 is given the second level of rigidity smaller than the first level. The rigidity of the first elastic member 73 may be set to be sufficiently lower than the rigidity of the housing 17, for example.

  The first elastic member 73 is fitted into a triangular receiving hole 75 formed at the apex of the housing 17. The receiving hole 75 is defined by three straight lines that connect the ridge lines extending toward the apex of the housing 17 to each other. The first elastic member 73 is formed with a receiving groove 76 that receives the periphery of the housing 17 along the outline of the receiving hole 75.

  According to such an impact absorber 72, for example, a relatively weak impact can be sufficiently absorbed by the second elastic member 74 as shown in FIG. The shock is not transmitted to the housing 17. The HDD 21 in the housing 17 can be sufficiently protected from impact.

  When a relatively strong impact is applied, the elastic displacement of the second elastic member 74 reaches a limit. As a result, the impact is transmitted to the first elastic member 73. A strong impact is absorbed by the first elastic member 73. A strong impact is not transmitted to the housing 17. The HDD 21 in the housing 17 can be sufficiently protected from a strong impact. As described above, according to the shock absorber 72, a sufficient shock absorbing force can be exhibited for a wide range of impacts compared to the case where the first elastic member 73 and the second elastic member 74 are used individually. Can do. In addition, the thickness of the shock absorber 72 can be suppressed as much as possible as compared with the case where the second elastic member 74 is used alone. Such a shock absorber 72 may be used together with the buffer member 23 and the buffer region 54 as described above, or may be used instead of the buffer member 23 and the buffer region 54.

  FIG. 17 partially shows an external appearance of an electronic apparatus, that is, a notebook personal computer (so-called notebook personal computer) 81 according to the fourth embodiment of the present invention. The notebook personal computer 81 includes the device main body 12 and the display panel 13 as in the first to third embodiments. The casing 17 of the apparatus main body 12 includes a casing main body 19 that partitions the accommodation space 18 as described above. The accommodation space 18 opens at the back surface of the device main body 12. The housing space 18 houses a built-in unit such as the HDD 21. When the apparatus main body 12 is installed on the desk when the notebook computer 81 is used, the horizontal posture of the HDD 21 is established in the accommodation space 18. At this time, the magnetic disk in the HDD 21 rotates around the vertical rotation axis. The opening of the accommodation space 18 may be closed by the lid body 22 as described above.

  When fixing the HDD 21 in the housing space 18, the frame 82 according to the first specific example is fixed to the housing body 19. The framework frame 82 includes a fixing plate 84 fixed to the ceiling surface of the accommodation space 18 with, for example, screws 83, and a counter plate 85 that faces the fixing plate 84 and divides the occupied space of the HDD 21 between the fixing plate 84. Is provided. The fixed plate 84 and the opposing plate 85 are connected to each other by a pair of connection plates 86 that sandwich the occupied space of the HDD 21 from the horizontal direction. The occupied space of the HDD 21 is surrounded by an endless wall surface formed by the fixed plate 84, the opposing plate 85 and the connection plate 86. Here, the fixed plate 84 faces the top surface of the HDD 21, while the counter plate 85 faces the bottom surface of the HDD 21.

  As is apparent from FIG. 17, the attachment member, that is, the fixing plate 84, the opposing plate 85, and the connection plate 86 are integrally formed with contact pieces, that is, bent plates 87, which stand up from the respective plates 84, 85, 86 and receive the HDD 21. . Each bent plate 87 can exhibit a sufficient elastic force by the action of the bent portion. That is, the bending plate 87 functions as an elastic piece. Here, the bending plate 87 is formed in a vertically divided semi-cylindrical shape extending from one end of the skeleton frame 82 to the other end. The bent plates 87 may be arranged in parallel to each other. The HDD 21 is sandwiched between the bent plate 87 on the fixed plate 84 and the bent plate 87 on the opposing plate 85 facing each other across the occupied space, and at the same time, between the bent plates 87 on the connecting plate 86 facing each other. Sandwiched between.

  A pair of front and rear auxiliary frames 89 are arranged in the accommodation space 18. When the HDD 21 held in the skeleton frame 82 is accommodated in the accommodating space 18, these auxiliary frames 89 face the front end and the rear end of the HDD 21 as is apparent from FIG. 18. Generally, for example, a connector (not shown) of a flexible printed circuit (FPC) is coupled to the front end or rear end of the HDD 21.

  Each auxiliary frame 89 is integrally formed with a contact piece, that is, a bent plate 90 that stands up from the auxiliary frame 89 and receives the HDD 21, similarly to the fixed plate 84, the opposing plate 85, and the connection plate 86. Each bending plate 90 may be formed in a vertically divided semi-cylindrical shape extending in the horizontal direction from one end of the auxiliary frame 89 toward the other end, as described above. In other words, each bent plate 90 functions as an elastic piece by utilizing the action of the bent portion. The skeleton frame 82 and the auxiliary frame 89 may be molded from a metal material such as aluminum or copper, or may be molded from a hard plastic material having equivalent rigidity. However, the skeleton frame 82 and the auxiliary frame 89 are given rigidity to at least retain the original shape.

  In the housing space 18, the HDD 21 is supported by the bent frames 87 and 90 of the skeleton frame 82 and the auxiliary frame 89. The HDD 21 does not come into contact with the frame frame 82 or the auxiliary frame 89 other than the bent plates 87 and 90. According to the skeleton frame 82 and the auxiliary frame 89, as shown in FIG. 19, when a large impact G is applied to the housing 17 when the notebook computer 81 is dropped, the bent plate is interposed between the housing 17 and the HDD 21. 87 and 90 are crushed. Deformation tends to occur at the bent portions defined by the bent plates 87 and 90. In accordance with such deformation, the impact load is converted into elastic deformation energy. The impact load is sufficiently consumed by the bent plates 87 and 90. That is, a large impact G is not transmitted to the HDD 21. The HDD 21 can be sufficiently protected from the impact G. According to the cooperation of the frame 82 that surrounds the HDD 21 and the auxiliary frame 89 that sandwiches the HDD 21 from the front-rear direction, the shock G is reliably absorbed by the bending plates 87 and 90 no matter which direction the shock G is applied. Can do.

  In the skeleton frame 82 and the auxiliary frame 89 as described above, an elastic plate 92 may be used instead of the bent plates 87 and 90, as shown in FIG. The elastic plate 92 includes an upright portion 94 that rises from the edge of the opening 93 formed in the frame 82 and the auxiliary frame 89 toward the housing space of the HDD 21, and a bent portion 95 that is connected to the tip of the upright portion 93. Prepare. The bent portion 95 receives the HDD 21 by, for example, line contact. Such an elastic plate 92 may be formed by being cut out from a metal frame 82 or an auxiliary frame 89 such as an aluminum plate or a copper plate.

  According to such an elastic plate 92, as in the case of the bent plates 87 and 90 described above, when a large impact G is applied to the housing 17 in a situation such as when the notebook computer 81 is dropped, the elastic plate 92 is interposed between the housing 17 and the HDD 21. The bent portion 95 is deformed. In accordance with such deformation, the impact load is converted into elastic deformation energy. The impact load is sufficiently consumed by the elastic plate 92. That is, a large impact G is not transmitted to the HDD 21. The HDD 21 can be sufficiently protected from the impact G.

  Furthermore, in the notebook personal computer 81, when fixing the HDD 21 in the accommodation space 18, a skeleton frame 101 according to the second specific example may be used in place of the skeleton frame 82 described above, for example, as shown in FIG. . The frame 101 is mounted on the ceiling surface of the accommodation space 18 with, for example, a screw 102, that is, a first fixing plate 103, and is spaced apart from the first fixing plate 103. An attachment member fixed to the surface, that is, a second fixing plate 104 is provided. The first and second fixing plates 103 and 104 are integrally formed with elastic plates 105 and 105 that rise from the fixing plates 103 and 104, respectively. These elastic plates 105, 105 are defined with bent portions that exhibit sufficient elastic force. In defining such a bent portion, the elastic plate 105 is formed in a vertically divided semi-cylindrical shape extending from one end of each of the fixed plates 103 and 104 toward the other end.

  The first and second fixing plates 103 and 104 are integrally formed with contact pieces, that is, elastic plates 106 that stand up from the respective fixing plates 103 and 104 and receive the HDD 21. The elastic plate 106 includes an upright plate 107 that rises substantially vertically from the surfaces of the fixed plates 103 and 104, and a bent portion 108 that is formed at the tip of the upright plate 107 and receives the HDD 21. Here, the bent portion 108 is formed in a vertically divided semi-cylindrical shape extending in parallel with the elastic plate 105. An occupied space of the HDD 21 is defined between the bent portion 108 and the corresponding elastic plate 105. The skeleton frame 101 may be molded from a metal material such as aluminum or copper, or may be molded from a hard plastic material having equivalent rigidity. However, the skeleton frame 101 is given at least rigidity sufficient to retain its original shape.

  In the housing space 18, the HDD 21 is sandwiched between the elastic plate 105 and the bent portion 108 of the skeleton frame 101. The HDD 21 does not contact the skeleton frame 101 except for the elastic plate 105 and the bent portion 108. According to such a skeleton frame 101, as shown in FIG. 22, when a large impact G is applied to the housing 17 when the notebook computer 81 is dropped, the elastic plate 105 and the bent portion are interposed between the housing 17 and the HDD 21. 108 is crushed. In accordance with such deformation, the impact load is converted into elastic deformation energy. The impact load is sufficiently consumed by the elastic plate 105 and the bent portion 108. That is, a large impact G is not transmitted to the HDD 21. The HDD 21 can be sufficiently protected from the impact G.

  In particular, the skeleton frame 101 is useful when an impact G is applied in the vertical direction defining the rotation axis of the magnetic disk in the HDD 21. In general, in the HDD 21, when such a large impact G is applied in the vertical direction, the surface of the magnetic disk is likely to be damaged by the collision of the head slider against the magnetic disk. Therefore, it is considered that the HDD 21 can be sufficiently protected if such a vertical impact G is sufficiently absorbed.

  In the skeleton frame 101 as described above, for example, as shown in FIG. 23, a flat plate that intersects the surface of the HDD 21 at a predetermined inclination angle instead of the semi-cylindrical elastic plate 105 and the bent portion 108 as described above. 109, 110 may be used. Such a flat plate 109 can provide the same effects as those of the elastic plate 105 and the bent portion 108 described above. This is because the inclination angle tends to cause deformation of the flat plates 109 and 110 when a shock G is applied in a vertical direction that defines the rotation axis of the magnetic disk, compared to a flat plate that intersects the surface of the HDD 21 perpendicularly.

  Furthermore, in the skeleton frame 101 as described above, for example, as shown in FIG. 24, the elastic plate 105 and the bent portion 108 and the flat plates 109 and 110 are mutually connected by a rotation shaft 111 extending in the front-rear direction of the HDD 21. It may be connected. According to such connection, for example, relative swinging between the flat plates 109 and 110 around the rotation shaft 111 can be allowed. Therefore, as shown in FIG. 25, the HDD 21 can be removed relatively easily. When the HDD 21 is held between the flat plates 109 and 110, for example, an elastic member (for example, a spring) 112 that exerts an urging force that brings the flat plates 109 and 110 closer to each other may be used.

  Furthermore, in the notebook personal computer 81, when fixing the HDD 21 in the accommodation space 18, as shown in FIG. 26, for example, a skeleton frame 121 according to the third specific example may be used. The skeleton frame 121 includes a box body 122 that is incorporated in the housing body 19 and divides the housing space 18 of the HDD 21. The box 122 may be fixed to the housing main body 19 with screws or the like, for example. When the box body 122 is thus fixed to the housing body 19, the ceiling plate 123 of the box body 122, i.e., the connection plate, is fixed in the accommodation space 18. An opening 124 is formed in the ceiling plate 123 of the box 122.

  A suspension member 125 that hangs in the direction of the action of gravity in the accommodation space 18 is engaged with the opening 124 of the ceiling plate 123. As apparent from FIG. 27, the suspension member 125 is formed integrally with the hook member 127 hooked on the upper surface of the ceiling plate 123 through the opening 124 from the inside of the box body 122, And a frame 128 disposed in the box 122. When the HDD 21 is mounted on the frame body 128 suspended from the hook member 127, the HDD 21 is suspended in the action direction 129 of gravity in the accommodation space 18. The HDD 21 is supported in a floating state. Here, the box body 122 may be formed from a metal plate such as aluminum or copper, and the suspension member 125 may be formed from a hard plastic, for example.

  According to such a skeleton frame 121, as shown in FIG. 28, when a large impact G is applied to the housing 17 when the notebook personal computer 81 is dropped, the impact load is transferred from the box 122 to the hook member 127 to the HDD 21. Is transmitted to. When the propagation distance of the impact load increases in this way, the impact G tends to attenuate before reaching the HDD 21. Therefore, a large impact G is not transmitted to the HDD 21. The HDD 21 can be sufficiently protected from the impact G.

  At this time, the hook member 127 does not necessarily need to be completely fixed to the ceiling board 123. If the pendulum motion of the frame 128 is allowed by the action of the hook member 127, the impact load can be converted into kinetic energy. As a result, the impact load can be consumed more efficiently. Therefore, the HDD 21 can be more effectively protected from the impact G.

  In realizing such a pendulum motion, for example, as shown in FIG. 29, the suspension member 125 may be configured as a spherical pendulum. At this time, the skeleton frame 121 may include a spherical member 131 fixed to the ceiling plate 123 of the box body 122 and a hollow spherical body 132 that is integrally formed with the frame body 128 and covers the spherical member 131. The spherical member 131 and the hollow spherical body 132 may be molded from hard plastic, for example.

  In addition, when such a spherical pendulum is realized, as shown in FIG. 30, an elastic receiving plate 133 that intersects the outer surface of the HDD 21 at a predetermined inclination angle is formed on the inner surface of the box body 122. Also good. Such a receiving plate 133 may be formed by cutting out a part of the box 122, for example. According to such a receiving plate 133, even if the HDD 21 shakes greatly in the box 122, the collision between the HDD 21 and the box 122 can be alleviated. As shown in FIG. 31, an elastic member 134 that can expand and contract instead of the receiving plate 133 may be formed on the inner surface of the box body 122.

  Furthermore, in the notebook personal computer 81, when fixing the HDD 21 in the accommodation space 18, a skeleton frame 141 according to the fourth specific example may be used as shown in FIG. The skeleton frame 141 includes a box body, that is, a mounting member 142 that is incorporated in the housing body 19 and divides the housing space 18 of the HDD 21. The box 142 may be fixed to the housing body 19 with a screw 143, for example. The box 142 is formed with two opening ports 144 that allow the HDD 21 to be taken in and out along the front-rear direction of the HDD 21.

  The box body 142 is integrally formed with two ridges 145 that rise from the inner surface of the box body 142 and extend from one open port 144 toward the other open port 144. These protrusions 145 define a pair of protruding surfaces, that is, curved surfaces that sandwich the occupied space of the HDD 21 in the horizontal direction, for example. At this time, a line contact may be established between the curved surface of the protrusion 145 and the HDD 21. The floating state of the HDD 21 is realized by the action of the two protrusions 145.

  According to such a pair of protrusions 145, the HDD 21 can be allowed to move along one movement plane defined by the vertical direction 146 and the front-rear direction 147. Here, for example, as shown in FIG. 33, when a large impact G is applied to the housing 17 in a scene such as the notebook personal computer 81 falling, the HDD 21 is moved along the moving plane in the box 142. In accordance with such movement, the impact load is converted into movement energy. The impact load is fully consumed. That is, a large impact G is not transmitted to the HDD 21. The HDD 21 can be sufficiently protected from the impact G.

  Furthermore, in the notebook personal computer 81, when the HDD 21 is fixed in the accommodation space 18, for example, as shown in FIG. 34, a buffer unit 151 may be used in place of the frame frames 82, 101, 121, 141 described above. . The buffer unit 151 includes, for example, an indenter 152 that is fixed to the horizontally oriented HDD 21 from the horizontal direction, that is, a pressure member, and a pair of receiving members 153 and 153 that sandwich the indenter 152 from the vertical direction (up and down direction), for example. The indenter 152 may be detachably fixed to the vertical surface or side wall surface of the HDD 21 with, for example, a screw 154. Each receiving member 153 is received on the inner wall surface of the accommodation space 18 by an upward horizontal plane 153a or a downward horizontal plane 153b. The receiving members 153 and 153 are connected to each other by a spacer that guides the vertical movement of the indenter 152, that is, a connecting member 155. The connecting member 155 maintains a constant distance between the receiving members 153 and 153 when the buffer unit 151 is sandwiched between the inner wall surfaces of the accommodation space 18 (for example, the housing body 19 and the lid body 22). to continue.

  As is clear from FIG. 35, the indenter 152 is formed with a taper surface 157a that tapers upward and a taper surface 157b that tapers downward. On the other hand, each receiving member 153 is formed with bowl-shaped depressions 158 and 158 facing the tapered surfaces 157a and 157b. When the indenter 152 is completely received by the receiving member 153 due to the vertical movement of the indenter 152, the tapered surfaces 157a and 157b can contact the inner surfaces of the recesses 158 and 158 in a wide range.

  Axial projections 159a and 159b are integrally formed at the tips of the respective tapered surfaces 157a and 157b. On the other hand, each receiving member 153, 153 is formed with a relief hole 161 at the deepest portion of the recess 158. When the tapered surfaces 157 a and 157 b are completely received by the recesses 158 and 158, the shaft-like protrusions 159 a and 159 b can enter the escape holes 161 and 161.

  Elastic body films 162 and 162 are disposed between the projecting pieces constituted by the tapered surfaces 157a and 157b and the axial projections 159a and 159b and the recesses 158 and 158. The elastic film 162 is fixed to the edge of the recess 158 on the outer periphery, for example. For such fixing, the periphery of the elastic film 162 may be fitted into the mounting groove 163 formed on the outer periphery of the receiving member 153. Here, a predetermined tension is applied to the elastic body film 162. Such tension does not necessarily require the elastic film 162 to be lifted from the inner surface of the recess 158. The elastic film 162 may be made of soft rubber, for example.

  According to such a buffer unit 151, for example, as shown in FIG. 36, when a relatively small impact G is applied in the vertical direction, the shaft-like protrusions 159a and 159b that enter the escape holes 161 act on the elastic film 162. A tensile force acts. The elastic film 162 expands. In accordance with this extension, the impact load is converted into elastic deformation energy. The impact load is sufficiently consumed by the elastic film 162. That is, the shock G is not transmitted to the HDD 21. Thus, the HDD 21 can be sufficiently protected from a relatively small impact G.

  When a relatively large impact G is applied in the vertical direction, the shaft-like protrusions 159a and 159b completely enter the escape hole 161 as shown in FIG. The tapered surfaces 157a and 157b of the indenter 152 are received by the recess 158. At this time, the elastic film 162 is sandwiched between the tapered surfaces 157 a and 157 b and the inner surface of the recess 158. Therefore, the elastic film 162 is compressed and deformed. The impact load is sufficiently consumed by such compression deformation. In addition, due to the action of the tapered surfaces 157a and 157b, the elastic film 162 can be simultaneously sheared. In accordance with such shear deformation, the elastic film 162 can consume the impact load more effectively. Thus, the HDD 21 can be sufficiently protected from a relatively large impact G.

  In such a buffer unit 151, as shown in FIG. 38, for example, shaft-like protrusions 159a and 159b may be screwed into the tips of the tapered surfaces 157a and 157b. The screwed shaft-like protrusions 159a and 159b can advance and retract in the axial direction according to the amount of rotation around the axial center. According to such a forward / backward movement, the protruding amount of the axial protrusions 159a and 159b can be increased or decreased. The magnitude of the impact G absorbed by the tensile force applied to the elastic film 162 prior to the action of the compressive load can be adjusted.

  In addition, in the buffer unit 151, for example, as shown in FIG. 39, an elastic film 164 may be further disposed on the elastic film 162 covering the inner surface of the recess 158. Such an elastic film 164 is sandwiched between the tapered surfaces 157 a and 157 b and the recess 158 together with the elastic film 162. The elastic film 162 and the elastic film 164 can absorb an impact in cooperation. As a result, the magnitude of impact absorbed by the compression deformation and shear deformation of the elastic films 162 and 164 can be adjusted.

  In particular, in such an elastic film 164, it is desirable to form a through hole through which the axial protrusions 159a and 159b pass. When the elastic film 164 is integrated with the elastic film 162 at the periphery of such a through-hole, for example, as shown in FIG. 164 thickness can be adjusted. In this way, the magnitude of the impact absorbed by the compression deformation and shear deformation of the elastic films 162 and 164 can be adjusted more finely.

  In the buffer unit 151 as described above, for example, as shown in FIG. 41, an additional buffer structure 166 may be incorporated in the receiving member 153. The buffer structure 166 includes a piston member 168 that partitions the pressure chamber 167 within the housing of the receiving member 153, and a pressure transmission medium sealed in the pressure chamber 167. The pressure chamber 167 is connected to a medium escape chamber 169 defined outside the housing of the receiving member 153. The medium escape chamber 169 is formed by an elastic film 170 attached to the outer surface of the housing. For example, an orifice 171 is formed between the pressure chamber 167 and the medium escape chamber 169.

  According to such a buffer structure 166, when the shaft-like protrusions 159 a and 159 b push down the piston member 168, the pressure transmission medium flows from the pressure chamber 167 through the orifice 171 to the medium escape chamber 169. The movement of the piston member 168 can be moderated by the action of the orifice 171. The energy of impact is fully absorbed. When the shaft-shaped protrusions 159 a and 159 b are lifted by the action of the elastic film 162, the elastic film 170 pushes back the pressure transmission medium toward the pressure chamber 167. The pressure transmission medium may be a gas such as air or a liquid such as oil. In realizing such a buffer structure 166, for example, as shown in FIG. 42, the pressure chamber 167 and the medium escape chamber 169 may be partitioned in a common elastic bag 172.

  Furthermore, in the notebook computer 81, when the HDD 21 is fixed in the accommodation space 18, a buffer unit 181 may be used instead of the buffer unit 151 described above, for example, as shown in FIG. The buffer unit 181 includes, for example, an indenter 182 that is fixed to the horizontal HDD 21 from the horizontal direction, that is, a pressure member, and a pair of receiving members 183 and 183 that sandwich the indenter 182 from the vertical direction (up and down direction), for example. The indenter 182 may be detachably fixed to the vertical surface or side wall surface of the HDD 21 with, for example, a screw 184. Each receiving member 183 is received on the inner wall surface of the accommodation space 18 by an upward horizontal plane 183a and a downward horizontal plane 183b. The receiving members 183 are connected to each other by a spacer that guides the vertical movement of the indenter 152, that is, a connecting member 185. The connecting member 185 keeps a constant distance between the receiving members 183 and 183 when the buffer unit 181 is sandwiched between the inner wall surfaces of the accommodation space 18 (for example, the housing body 19 and the lid body 22). .

  As is apparent from FIG. 44, the indenter 182 is arranged with a plurality of upward projecting pieces 187, 187... Arranged at a predetermined interval in the front-rear direction of the HDD 21 and similarly at a predetermined interval in the front-rear direction of the HDD 21. A plurality of downward projecting pieces 188, 188... Are integrally formed. On the other hand, in each receiving member 183, depressions 189 and 189 that face the upward projecting piece 187 and the downward projecting piece 188 are arranged. When the indenter 182 is received by the receiving member 183, each of the upward protruding pieces 187 and the downward protruding pieces 188 can contact the inner surfaces of the recesses 189 and 189 with a wide contact area.

  An elastic band 190 is disposed between the upward projecting piece 187 and the recess 189 and between the downward projecting piece 188 and the recess 189. The elastic band 190 is fixed to the corresponding receiving member 183 at the front and rear ends, for example. Here, tension is applied to the elastic band 190 so as not to loosen. The elastic band 190 may be made of, for example, soft rubber.

  According to such a buffer unit 181, for example, as shown in FIG. 45, when a relatively small impact G is applied in the vertical direction, for example, an upward projecting piece 187. The elastic band 190 is extended toward the inner surface of the recesses 189. The elastic band 190 extends. In accordance with this extension, the impact load is converted into elastic deformation energy. The impact load is sufficiently consumed by the elastic band 190. That is, the shock G is not transmitted to the HDD 21. Thus, the HDD 21 can be sufficiently protected from a relatively small impact G.

  When a relatively large impact G is applied in the vertical direction, as shown in FIG. 46, the elastic band 190 is sandwiched between the upward upward protruding piece 187... And the downward downward protruding piece 188. . Therefore, the elastic band 190 is compressed and deformed. The impact load is sufficiently consumed by such compression deformation. Moreover, according to the action of the inclined surfaces of the upward projecting pieces 187... And the downward projecting pieces 188, the elastic band 190 can be simultaneously sheared. In accordance with such shear deformation, the elastic band 190 can consume the impact load more effectively. Thus, the HDD 21 can be sufficiently protected from a relatively large impact G. It is desirable that a clearance allowance 191 that allows the elastic band 190 to spread during compression deformation is secured between the upward protruding pieces 187... And the downward protruding pieces 188.

  Such a buffer unit 181 may further include a tension adjusting mechanism 193 that adjusts the tension of the elastic band 190 as shown in FIG. 47, for example. The tension adjusting mechanism 193 may be configured by, for example, a roller 194 around which the elastic band 190 is wound. As the elastic band 190 is wound around the roller 194, the tension of the elastic band 190 can increase. At this time, even if the tension of the elastic band 190 increases, the rotation of the roller 194 may be restricted.

  Here, the above-described housing body 19 may include a reinforcing beam 203 that connects the corners 202 facing each other on the bottom plate 201 as shown in FIG. 48, for example. In such a housing main body 19, generally, four ridge lines are formed between the four side walls 204 rising from the bottom plate 201 and the bottom plate 201. Such a ridgeline can improve the rigidity of the housing body 19. In addition, when the reinforcing beam 203 is combined with such a ridgeline, the rigidity of the housing body 19 can be further increased. Deflection such as twisting of the bottom plate 201 can be effectively prevented. The reinforcing beam 203 may be formed integrally with the bottom plate 201 or may be formed separately from the bottom plate 201.

  FIG. 49 shows the appearance of an electronic apparatus, that is, a notebook personal computer (so-called notebook personal computer) 211 according to the fifth embodiment of the present invention. As in the first to fourth embodiments, the notebook computer 211 includes a device main body 12 that houses a built-in unit such as a motherboard or an HDD 21, and a display panel 13 that is swingably connected to the device main body 12. Prepare. For example, a liquid crystal display (LCD) unit 16 is incorporated in the display panel 13 as described above. For example, as is clear from FIG. 1, the display panel 13 can be superimposed on the device main body 12 while the screen of the LCD unit 16 and the keyboard 14 face each other.

  A buffer member 213 is received on the outer surface of the display housing 212 on the back side of the LCD unit 16. The buffer member 213 rises from the outer surface of the display housing 212. As shown in FIG. 50, the buffer member 213 may be fixed to the outer surface of the display housing 212. In addition, as shown in FIG. 51, the buffer member 213 may be embedded in an outer skin layer 214 that is integrally formed on the outer surface of the display housing 212. The buffer member 213 may be made of an elastic body such as soft rubber or soft plastic. For example, a buffer layer 215 may be sandwiched between the display housing 212 and the LCD unit 16.

  According to such a buffer member 213, even if a large impact is applied to the outer surface of the display housing 212 when the notebook personal computer 211 is dropped, such a shock can be sufficiently absorbed by the buffer member 213. Therefore, a large impact is not transmitted to the display housing 212. Deformation such as bending of the display housing 212 can be sufficiently suppressed. The LCD unit 16 can be reliably protected from impact.

  For example, as shown in FIG. 52, the elastic body used for the buffer member 213 is laminated on the surface of the first layer 221 formed at the first level hardness and the first layer 221. A second layer 222 formed to have a second level of hardness, and a third layer 223 similarly laminated on the surface of the second layer 222 and formed to a third level of hardness smaller than the second level; Should be provided. In such an elastic body, for example, polyurethane formed in Asker hardness C50 can be used for the first layer 221. According to the first layer 221 having such Asker hardness C50, an impact of about 600G to 900G is efficiently absorbed. At this time, for the second layer 222, for example, styrene rubber formed to an Asker hardness C40 may be used. According to the second layer 222 having such Asker hardness C40, an impact of about 300G to 600G can be efficiently absorbed. For the third layer 223, for example, a polyurethane foam having an Asker hardness C30 may be used. According to the third layer 223 having the Asker hardness C30, an impact of about 100G to 300G can be efficiently absorbed. According to such an elastic body, the impact can be sufficiently absorbed in a wide range of 100G to 900G as a whole.

  (Appendix 1) An electronic device comprising a housing, a built-in unit accommodated in the housing, and a buffer member disposed between the built-in unit and the housing and plastically deformed by receiving an impact load .

  (Supplementary Note 2) An impact absorber that is plastically deformed by an impact load of a prescribed strength, a first receiving surface that is defined at one end of the impact absorber, and receives the built-in unit, and is defined at the other end of the impact absorber. A buffer member for a built-in unit for electronic equipment, comprising: a second receiving surface that receives an impact applied from the electronic device.

  (Additional remark 3) The buffer member for built-in units for electronic devices of Additional remark 2 WHEREIN: The said shock absorber changes the cross-sectional area prescribed | regulated by the cut surface parallel to the said 1st receiving surface at least. Shock absorber for built-in unit for electronic equipment.

  (Additional remark 4) The buffer member for built-in units for electronic devices of Additional remark 3 WHEREIN: The said shock absorber is a 2nd end which prescribes | regulates the 1st end part which prescribes | regulates the said 1st receiving surface, and a said 2nd receiving surface. And a small-diameter portion formed between the first and second end portions, and a buffer member for a built-in unit for electronic equipment.

  (Additional remark 5) The buffer member for built-in units for electronic devices of Additional remark 4 WHEREIN: The said small diameter part is extended along the reference line which cross | intersects the said 1st receiving surface at a predetermined | prescribed inclination angle, The electronic characterized by the above-mentioned. Shock absorber for built-in unit for equipment.

  (Additional remark 6) In the buffer member for built-in units for electronic devices as described in Additional remark 3, the said shock absorber is a wedge part tapering as it goes to the other side from either one side of the said 1st and 2nd receiving surface, A buffer member for a built-in unit for electronic equipment, comprising: a wedge receiving portion that is connected to the tip of the wedge portion at a connection surface and receives the tip of the wedge portion on a flat surface including the connection surface as a part thereof.

  (Supplementary note 7) Case, built-in unit accommodated in the case, a foot fixed to the outer wall surface of the case, and an impact load with a specified strength around the foot And a buffer region that is plastically deformed.

  (Supplementary Note 8) A housing for electronic equipment, characterized in that a rigid body region that is plastically deformed by a first level impact load and a buffer region that is plastically deformed by a second level impact load smaller than the first level are defined. body.

  (Supplementary note 9) The electronic device casing according to supplementary note 8, wherein a foot is attached to the buffer region.

  (Supplementary Note 10) A housing, a built-in unit accommodated in the housing, a first elastic member attached to a corner portion of the housing and formed to have a first level rigidity, and a first elastic member An electronic apparatus comprising: a second elastic member that is laminated on an outer surface and has a second level rigidity smaller than the first level.

  (Additional remark 11) It is attached to the corner | angular part of the housing | casing for electronic devices, is laminated | stacked on the outer surface of this 1st elastic member, and is smaller than a 1st level, and is formed in the 1st level rigidity. A buffer member for electronic equipment, comprising: a second elastic member formed with a second level of rigidity.

  (Additional remark 12) It is provided with the attachment member fixed to the housing | casing for electronic devices, and the contact piece which stands up from this attachment member, and receives a built-in unit, and a contact piece is bent at least between the housing | casing for electronic devices and a built-in unit A buffer member for a built-in unit for electronic equipment, characterized in that a part is defined.

  (Additional remark 13) The buffer member for internal units for electronic devices of Additional remark 12 WHEREIN: The said contact piece is arrange | positioned at at least two places, and sandwiches the space occupied by the said internal unit, The internal unit for electronic devices characterized by the above-mentioned Cushioning member.

  (Supplementary Note 14) A housing, a built-in unit housed in the housing, an attachment member fixed to the housing, and at least one pair of contact pieces that stand up from the attachment member and sandwich the built-in unit, and at least the housing An electronic device characterized in that a bent portion is defined in the contact piece between the body and the built-in unit.

  (Additional remark 15) The buffer member for built-in units for electronic devices characterized by including the attachment member fixed to the housing | casing for electronic devices, and the elastic piece which is integrally formed in the attachment member and receives a built-in unit.

  (Supplementary Note 16) A housing, a built-in unit accommodated in the housing, an attachment member fixed to the housing, and at least one pair of elastic pieces formed integrally with the attachment member and sandwiching the built-in unit. Electronic equipment characterized by

  (Supplementary Note 17) A shock-absorbing member for a built-in unit for an electronic device, comprising: a mounting member fixed to the casing for the electronic device; and at least one pair of elastic pieces rising from the mounting member and sandwiching the built-in unit .

  (Supplementary Note 18) A connecting member that is partitioned in the housing for the electronic device and is fixed in the receiving space that receives the built-in unit, and a hanging member that is connected to the connecting member and hangs in the direction of gravity in the receiving space. A buffer member for a built-in unit for electronic equipment, comprising:

  (Additional remark 19) The buffer member for internal units for electronic devices of Additional remark 18 WHEREIN: The said suspension member is comprised by a spherical pendulum, The buffer member for internal units for electronic devices characterized by the above-mentioned.

  (Supplementary note 20) An electronic device comprising a housing and a built-in unit suspended in the direction of gravity in a housing space partitioned in the housing.

  (Supplementary note 21) For an electronic device comprising: an attachment member fixed to an electronic device casing; and at least one pair of projecting surfaces projecting from the surface of the attachment member and sandwiching the occupied space of the built-in unit Buffer member for built-in unit.

  (Additional remark 22) At least which defines 1 movement plane of a housing | casing, the built-in unit accommodated in a housing | casing, the attachment member fixed to a housing | casing, protruding from the surface of an attachment member, and sandwiching a built-in unit An electronic device comprising a pair of protruding surfaces.

  (Supplementary Note 23) A housing, a built-in unit accommodated in the housing, a projecting piece fixed to one of the housing and the built-in unit, and a projecting piece fixed to the other of the housing and the built-in unit. An electronic apparatus comprising: a receiving member that defines a recess facing each other; and an elastic body that crosses between the protruding piece and the recess while exhibiting a predetermined tension.

  (Supplementary Note 24) A buffer comprising: an indenter that forms a projecting piece; a receiving member that defines a recess facing the projecting piece; and an elastic body that crosses between the projecting piece and the recess while exhibiting a predetermined tension. unit.

  (Supplementary Note 25) An electronic device comprising a housing and a reinforcing beam connecting corners facing each other on a bottom plate of the housing.

  (Additional remark 26) The housing | casing for electronic devices characterized by providing the reinforcing beam which connects the corners which face on a bottom plate.

  (Supplementary Note 27) An electronic apparatus comprising a buffer member fixed to the outer surface of the display housing on the back side of the display unit.

  (Additional remark 28) The housing | casing for displays for electronic devices provided with the outer surface which receives a buffer member in the back side of a display unit.

1 is a perspective view showing an appearance of a portable notebook personal computer (notebook personal computer) as an electronic apparatus according to a first embodiment of the present invention. It is an expansion perspective view which shows the back (back surface) of an apparatus main body partially. It is sectional drawing which shows the structure of accommodation space roughly. It is an expansion perspective view showing roughly the structure of the shock absorber concerning the 1st example. It is a partially expanded side view which shows the shock absorber divided | segmented when an impact load is added. It is an expansion perspective view showing roughly the structure of the shock absorber concerning the 2nd example. It is a partially expanded side view which shows roughly the process in which an impact absorber is destroyed. It is an expansion perspective view showing roughly the structure of the shock absorber concerning the 3rd example. It is an expanded sectional view of an impact absorber. It is a perspective view which shows the external appearance of the notebook computer as an electronic device which concerns on 2nd Embodiment of this invention. It is an expanded partial sectional view which shows the structure of a housing body roughly. It is an expanded partial sectional view which shows roughly the process in which a buffer area | region is destroyed. It is an expansion partial perspective view which shows roughly the buffer area | region which concerns on another specific example. It is a perspective view which shows the external appearance of the notebook computer as an electronic device which concerns on 3rd Embodiment of this invention. It is the elements on larger scale of the housing | casing which show the structure of a shock absorber in detail. It is a graph which shows the impact absorption power of the 1st and 2nd elastic member. It is a perspective view which shows the external appearance of the notebook computer as an electronic device which concerns on 4th Embodiment of this invention. It is sectional drawing at the time of HDD accommodation along the 18-18 line of FIG. It is a front view which shows the frame frame which concerns on a 1st example, and the front end of HDD. It is a partially broken perspective view which shows roughly the structure of the elastic board which concerns on another specific example. It is a perspective view which shows roughly the structure of the frame which concerns on a 2nd example. It is a front view which shows the frame frame which concerns on a 2nd example, and the front end of HDD. It is a perspective view which shows the modification of the frame frame which concerns on a 2nd example. It is a perspective view which shows the other modification of the frame frame which concerns on a 2nd example. It is a front view which shows roughly the operation | movement of the frame frame which concerns on another modification. It is a perspective view which shows roughly the structure of the frame which concerns on a 3rd example. It is a partially cutaway side view of the framework frame schematically showing the structure of the suspension member. It is a front view which shows roughly the effect | action of the frame which concerns on a 3rd example. It is a front view which shows the other modification of the frame frame which concerns on a 3rd example. It is a front view which shows the further another modification of the frame frame which concerns on a 3rd example. It is a front view which shows the further another modification of the frame frame which concerns on a 3rd example. It is a perspective view which shows roughly the structure of the frame which concerns on a 4th example. It is a partially cutaway side view which shows roughly the effect | action of the frame frame which concerns on a 4th example. It is a side view which shows roughly the buffer unit attached to HDD. It is a disassembled perspective view which shows the structure of a buffer unit roughly. It is a schematic diagram which shows roughly operation | movement of a buffer unit when a comparatively small impact is added. It is a schematic diagram which shows roughly operation | movement of a buffer unit when a comparatively big impact is added. It is sectional drawing which shows the axial protrusion screwed in the front-end | tip of a taper surface. It is a schematic diagram which shows roughly the structure of the buffer unit which concerns on one modification. It is a schematic diagram which shows roughly the function of the buffer unit which concerns on one modification. It is a schematic diagram which shows roughly the structure of the buffer unit which concerns on another modification. It is a mimetic diagram showing roughly the structure of the buffer unit concerning other modifications. It is a perspective view which shows roughly the structure of the buffer unit which concerns on another specific example. It is a disassembled perspective view which shows roughly the structure of the buffer unit which concerns on another specific example. It is a schematic diagram which shows roughly operation | movement of a buffer unit when a comparatively small impact is added. It is a schematic diagram which shows roughly operation | movement of a buffer unit when a comparatively big impact is added. It is an enlarged side view which shows roughly the structure of the tension | tensile_strength adjustment mechanism linked | related with the buffer unit which concerns on another specific example. It is a top view which shows roughly the structure of the reinforcement beam integrated in a housing body. It is a perspective view which shows the external appearance of the notebook computer as an electronic device which concerns on 5th Embodiment of this invention. It is an expanded sectional view showing an example of a buffer member. It is an expanded sectional view which shows the buffer member which concerns on another specific example. It is a schematic diagram which shows the structure of an elastic body roughly.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 Notebook personal computer (notebook personal computer) as an electronic device, 16 Display unit, 17 housing | casing, 18 accommodating space, 19 housing | casing main body, 21 Hard disk drive (HDD) as a built-in unit, 23 Buffer member, 24a, 24b , 24c Shock absorber, 25 Inward receiving surface as first receiving surface, 26 Outward receiving surface as second receiving surface, 28 Inner end as first end, 29 Outer end as second end Part, 30 constriction as a small diameter part, 31 reference line, 35 wedge part also serving as a wedge receiving part, 36 connection surface, 37 one plane, 38 wedge receiving part, 39 wedge part, 40 connection surface, 41 one plane, 51 electronic equipment Notebook PC as 52-foot, 53 Rigid body area, 54 Buffer area, 71 Notebook PC as electronic equipment, 73 1st , 74 second elastic member, 81 laptop computer as electronic device, 84 fixing plate as attachment member, 85 counter plate as attachment member, 86 connection plate as attachment member, 87 bending as contact piece and elastic piece Plate, 89 auxiliary frame as attachment member, 90 bent plate as contact piece and elastic piece, 92 elastic plate as contact piece and elastic piece, 95 bent portion, 103 first fixed plate as attachment member, 104 as attachment member Second fixed plate, 105 elastic plate as contact piece and elastic piece, 106 elastic plate as contact piece and elastic piece, 108 bent portion, 109 flat plate as elastic piece, 110 flat plate as elastic piece, 123 connection Ceiling board as member, 125 suspension member, 142 box as attachment member, 145 Ridges that define the projecting surface, 151 buffer unit, 152 indenter, 153 receiving member, 157a, 157b taper surface constituting the projecting piece, 158 depression, 159a, 159b shaft-like projection constituting the projecting piece, 162 elastic body, 164 elasticity Body, 181 buffer unit, 182 indenter, 183 receiving member, 187 projecting piece, 188 projecting piece, 189 depression, 190 elastic body, 201 bottom plate, 202 corner, 203 reinforcing beam, 211 notebook computer as electronic equipment, 212 display housing Body, 213 cushioning member.

Claims (5)

  An electronic apparatus comprising: a housing; a built-in unit accommodated in the housing; and a buffer member disposed between the built-in unit and the housing and plastically deformed by receiving an impact load.   A housing, a built-in unit accommodated in the housing, a pedestal fixed to the outer wall surface of the housing, a stipulated by the housing around the pedestal, and plastic deformation with an impact load of a specified strength An electronic device comprising a buffer region.   A mounting member that is fixed to the electronic device casing and a contact piece that stands up from the mounting member and receives the built-in unit. A bent portion is defined in the contact piece between at least the electronic device casing and the built-in unit. A buffer member for a built-in unit for electronic equipment.   A connecting member that is partitioned in the housing space for receiving the built-in unit and that is partitioned in the housing for the electronic device, and a suspension member that is connected to the connecting member and hangs in the direction of gravity in the housing space. A shock absorbing member for a built-in unit for electronic equipment.   A housing, a built-in unit housed in the housing, an attachment member fixed to the housing, and a protrusion protruding from the surface of the attachment member so as to sandwich the built-in unit, and defining at least one pair of protrusions defining one moving plane of the built-in unit An electronic device comprising a surface.

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