Electronic apparatus

Abstract

According to one embodiment, an electronic apparatus includes a casing, a device attachment portion, a pointing device, an attachment member and a button member. The casing includes an outer surface, an inner surface and an opening. The device attachment portion is provided in the casing. The pointing device is attached to the device attachment portion from a side of the inner surface. The attachment member is removably fixed to the casing and covers a part of the pointing device from the side of the inner surface. The button member is attached to the attachment member and includes a base portion, a supporting portion and an operating portion. The base portion is fixed to the attachment member. The supporting portion extends from the base portion. The operating portion at a front end of the supporting portion is fitted in the opening, and exposed to the outside of the casing.

What is claimed is: 
     
         1 . An electronic apparatus comprising:
 a casing comprising an outer surface exposed to an outside of the casing, an inner surface located in an opposite side from the outer surface and an opening provided across the outer surface and the inner surface;   a device attachment portion provided proximity with the opening in the casing;   a pointing device attached to the device attachment portion from a side of the inner surface;   an attachment member removably fixed to the casing from the side of the inner surface and covering a part of the pointing device from the side of the inner surface; and   an operating portion supported by the attachment member and exposed from the opening.   
     
     
         2 . The electronic apparatus of  claim 1 , further comprising a button member including the operating portion, wherein
 the button member is attached to the attachment member at a position which overlaps the pointing device.   
     
     
         3 . The electronic apparatus of  claim 2 , wherein the attachment member is made of metal. 
     
     
         4 . The electronic apparatus of  claim 2 , further comprising a shock absorbing member fixed to the attachment member, wherein
 the button member comprises a flexible supporting portion which overlaps a part of the attachment member and the shock absorbing member is sandwiched between the supporting portion and the attachment member.   
     
     
         5 . The electronic apparatus of  claim 2 , wherein the attachment member comprises a first surface which faces the pointing device, a second surface located on a side opposite from the first surface and a reinforcing portion protruding from the second surface, extends from one end to another end of the device attachment portion to cover a part of the device attachment portion; and
 the reinforcing portion extends in a direction in which the attachment member extends.   
     
     
         6 . The electronic apparatus of  claim 5 , wherein the attachment member comprises an insertion hole and a first attachment-error preventing portion;
 the button member comprises a projection to be inserted into the insertion hole and a second attachment-error preventing portion; and   the first attachment-error preventing portion and the second attachment-error preventing portion engage with each other only when the projection is inserted in the insertion hole from a side of the second surface.   
     
     
         7 . An electronic apparatus comprising:
 a casing provided with an opening;   a component attached to a defined region on an inner surface of the casing alongside the opening;   an attachment portion provided on the casing in a position where at least a part of the attachment portion overlaps the component in a direction of thickness of the casing; and   a button member supported by the attachment portion and including an operating portion exposed from the opening,   wherein the button member comprises a base portion fixed to the attachment portion and a supporting portion extending between the operating portion and the base portion.   
     
     
         8 . An electronic apparatus comprising:
 a casing provided with an opening;   a component attached to a defined region on an inner surface of the casing alongside the opening;   an attachment portion provided on the casing in a position where at least a part of the attachment portion overlaps the component in a direction of thickness of the casing; and   an operating portion supported by the attachment portion and exposed from the opening,   wherein the component is attached to the casing from a side of the inner surface of the casing and sandwiched between the casing and the attachment portion.