JP2008102210A - Mounting structure of indicator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To set an indicator at a prescribed indicator angle, even at long-term use by improving the operability in setting the indication angle of an indicator in a mounting structure of the indicator. <P>SOLUTION: The indicator 15 is freely rotatably supported on an indicator pedestal 6 so as to be able to freely rise and fall about a revolving shaft 22 as a center of rotation, and the back is provided with an arcuate section 18 to be pressure contacted with the revolving shaft 22, as the center of rotation. A bracket 25 mounted on the back of the indicator pedestal 6 is integrally provided with a holding section 28 via a support piece 29, having flexibility and a pressure contact member 33, is mounted on the holding section 28. The pressure contact member 33 is brought into pressure contact with the section 18 to be pressure contacted in the elastically deformed state of the support piece 29, and a pressure contact substrate 33a of the pressure contact member 33 points to the revolving shaft 22 and comes into surface contact with the section 18 to be pressure-contacted. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a display mounting structure that is provided in an electronic device or the like and can select a display angle.

As a conventional display mounting structure, there is provided a display mounting portion provided with an opening, and a protruding portion that is supported by the display mounting portion so as to be raised and lowered and protrudes from the opening to the back side of the display. And a rubber member attached to the back side of the display mounting portion and provided with a tongue piece corresponding to the protruding portion. A rubber member fitted and fixed to the tongue piece is pressed against the protruding portion, and rubber is provided. There is one in which a display angle of an indicator can be selected by a frictional force generated between a member and a protruding portion (for example, see Patent Documents 1 and 2).
Japanese Patent Laying-Open No. 2005-77573 (paragraphs [0010] to [0014], FIGS. 4 to 8) Japanese Patent Laying-Open No. 2005-268944 (paragraphs [0014] to [0019], FIGS. 3 to 5, 9, and 10)

  In the conventional display mounting structure described above, a pair of opposed surfaces facing each other are provided on the protruding portion, and a rubber member is press-fitted between the opposed surfaces, and the friction generated between each opposed surface and the rubber member. The display is set to a predetermined display angle by force. For this reason, if a manufacturing error of parts or an assembly error between parts occurs in the direction of the opposing surfaces, the rubber member is strongly pressed against one of the opposing surfaces. There was a problem of poor operability when setting. In addition, when the rubber member is worn due to long-term use, a predetermined frictional force cannot be obtained between the rubber member and the opposing surface, so that the display cannot be set at a predetermined display angle.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to improve the operability when setting the display angle of the display, and to make the display predetermined even after long-term use. The present invention provides a display mounting structure that can be set to a display angle.

  In order to achieve this object, the invention according to claim 1 includes a device housing in which a display mounting portion provided with an opening is formed, and a back and back surface supported by the display mounting portion so as to be raised and lowered. An indicator provided with a pressed contact portion protruding to the side, a press contact member that is pressed against the pressed contact portion and keeps the indicator raised by frictional force, and attached to the back surface of the display mounting portion. A bracket provided with a holding portion for holding the pressure contact member, and the pressure contact member is in pressure contact with the pressure contact portion in a state where the holding portion is elastically deformed.

  According to a second aspect of the present invention, in the first aspect of the invention, the pressure contact portion is formed in an arc shape centering on a rotation axis of the display, and the pressure contact portion and the pressure contact member are in surface contact. It has been made.

  According to a third aspect of the present invention, in the second aspect of the invention, a non-pressure contact portion that is connected to the pressure contact portion via the stepped portion and is not pressed by the pressure contact member is provided, and the display is mounted on the display The pressure contact member opposes the non-pressure contact portion by lying on the portion.

  The invention according to claim 4 is the invention according to claim 2, wherein the bracket is integrally provided with a bearing portion that pivotally supports the rotation shaft of the display.

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the holding portion is supported by a flexible support piece projecting integrally from the bracket. The support piece is formed in an L shape so that the press contact surface that presses the pressed contact portion of the press contact member always points in the same direction by elastic deformation.

  According to the first aspect of the present invention, even if a manufacturing error of parts or an assembly error between parts occurs, these errors are absorbed by the elastic deformation of the holding portion. By being pressed by the same pressing force, the frictional force between the pressing member and the pressed contact portion becomes constant. For this reason, the operativity at the time of setting a display to a predetermined display angle improves. In addition, even if the pressure contact member wears due to long-term use, a predetermined frictional force is obtained between the pressure contact member and the pressed contact portion due to the elastic force of the holding member, so the display is set at a predetermined display angle. The problem of being unable to do so is also resolved.

  According to the invention which concerns on Claim 2, even if it changes the display angle of a display, since the frictional force between a press-contact member and a to-be-contacted contact part becomes always constant, when setting the display angle of a display Operability is improved.

  According to the invention which concerns on Claim 3, since an operator can recognize the state by which the indicator was laid down by the indicator mounting part, usability improves.

  According to the fourth aspect of the present invention, the holding portion that holds the pressure contact member and the bearing portion that supports the rotation shaft of the display are integrally provided on the same bracket, so that the pressure contact member and the display provided on the display are provided. The positional relationship with the pressure contact portion is always constant. For this reason, since the frictional force between the pressure contact member and the pressure contact portion is always constant, the operability when setting the display angle of the display is improved.

  According to the invention of claim 5, even if the support piece supporting the holding portion is elastically deformed, the pressure contact surface of the pressure contact member with respect to the pressure contact portion always points in the same direction, so that the pressure contact portion and the pressure contact portion are pressed. Since the contact area with the surface is always constant, the frictional force between the pressure contact member and the pressed contact portion is always constant, so that the operability when setting the display angle of the display is improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view of a telephone to which a display mounting structure according to the present invention is applied, FIG. 2 is a perspective view of the telephone with the display removed, FIG. 3 is a plan view of the telephone, and FIG. FIG. 5 shows the bracket, FIG. 5A is a perspective view, FIG. 5B is a rear view, FIG. 5C is a plan view, and FIG. FIG. 5 is a cross-sectional view taken along line V (D) -V (D) in FIG.

  6 is a cross-sectional view taken along line VI-VI in FIG. 3, FIG. 7 is a cross-sectional view taken along line VI-VI in FIG. 3 showing a state where the display is set at a predetermined display angle, and FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 9 is a cross-sectional view taken along line VIII-VIII in FIG. 3 showing a state where the display is set to a predetermined display angle, and FIG. 10 is a cross-sectional view taken along line VV in FIG. 3 showing a state where the display is set to the upper limit display angle. FIGS. 11A and 11B are schematic diagrams for explaining elastic deformation of the support piece that similarly supports the holding portion. FIG. 11A shows a state in which the support piece is not elastically deformed, and FIG. Indicates a state in which the support piece is elastically deformed.

  2 is composed of a lower case 2 and an upper case 3 both formed in a shallow bottom shape, and a handset (not shown) is mounted on the side of the upper case 3. A handset placement unit 4 is provided. In addition, a display device mounting portion 6 having a rectangular opening 5 is formed at the rear portion of the upper case 3, and a plurality of dial buttons 7 and function buttons 8 are provided at the front portion. .

  The display device mounting portion 6 includes a pair of first shaft disengagement restricting portions 11 and a second shaft for restricting the rotation shaft 22 of the display device 15 (described later) from coming out of a bearing portion 26 (described later) across the opening 5. The shaft drop-out restricting portion 12 is erected integrally. The first shaft drop-out restricting portion 11 and the second shaft drop-out restricting portion 12 are erected so as to face each other as shown in FIG. 8, and the upper portion 12a of the second shaft drop-out restricting portion 12 is formed in a curved shape. A gap 13 is provided between the upper portion 12 a and the upper end of the first shaft slip-out restricting portion 11. The width W of the gap 13 is formed to be larger than the short side length A of the rotating shaft 22 described later and smaller than the long side length B. Further, between the first and second shaft slip-out restricting portions 11 and 12 of the display device mounting portion 6, insertion holes 14 and 14 through which bearing portions 26 and 26 of a bracket 25 described later are inserted are provided. .

  The display device generally indicated by reference numeral 15 in FIG. 4 has a display portion 15a and is formed in a flat rectangular parallelepiped shape. One end of the center portion of the bottom portion 16 has a protruding portion 17 formed in a circular arc shape in cross section. Are projecting together. A pressure contact portion 18 having an arcuate cross section is formed at the center of the projecting portion 17, and a stepped portion is formed at the end of the pressure contact portion 18 in the arc direction as shown in FIG. 19 is provided, and the protruding portion 17 is formed with a non-pressure contact portion 17a connected to the pressure contact portion 18 through the step portion 19.

  As shown in FIG. 6, the pressure contact surface 33 a of the pressure contact member 33 faces the non-pressure contact portion 17 a in a state where the display device 15 is laid down on the display device mounting portion 6. Further, engaging portions 20, 20 that engage with stoppers 32, 32 (to be described later) of the bracket 25 protrude from the tip of the projecting portion 17, and the engaging portions 20 engage with the stopper 32. Thus, the maximum display angle of the display 15 is set.

  In FIG. 4, reference numerals 21 and 21 denote concave portions provided in the bottom of the display unit 15 with the projecting portion 17 interposed therebetween. The recesses 21 and 21 have a rotation of the display unit 15 as shown in FIG. Rotating shafts 22 and 22 formed in a substantially rectangular cross section serving as a moving center are projected in a direction facing each other, and the pressed contact portion 18 is formed in an arc shape with the rotating shaft 22 as the center. ing. Curved curved surfaces 22a and 22a are provided on the peripheral surface of the short side of the rotating shaft 22, and the curved surface 22a is in contact with a shaft contact surface 26a of a bearing portion 26 described later. Thus, the display 15 is rotatably supported by the bearing portion 26.

  The bracket 25 shown as a whole in FIG. 5 is formed in an approximately flat rectangular parallelepiped shape made of plastic, and a pair of bearing portions 26 and 26 constituting a part of the above-described bearing portion 10 are opposed to each other at both ends. The bearing portions 26, 26 are provided with a shaft-contacting surface 26a that is recessed in an arc shape. Reference numerals 27 and 27 denote insertion holes provided on both sides of the bracket 25, and the bracket 25 is attached to the back surface of the display unit mounting portion 6 by screws (not shown) through which the insertion holes 27 are inserted.

  In addition, a holding portion 28 is integrally provided at the center of the bracket 25 so as to protrude obliquely upward through a flexible support piece 29 and formed in a flat plate shape. As shown in FIG. 11A, the support piece 29 is formed in an L shape by a vertical portion 29a and a horizontal portion 29b, and an angle α formed by the vertical portion 29a and the horizontal portion 29b is formed at 90 °. ing.

  Reference numerals 30 and 30 denote support walls erected on both sides of the holding portion 28 of the bracket 25, and support pieces 31 and 31 project from end portions of the support walls 30 and 30 so as to face each other. The support pieces 31 and 31 are provided with stoppers 32 and 32, respectively. By setting the display 15 to the maximum display angle, the stopper 32 is engaged with the engagement portion 20 of the display 15 as shown in FIG. It is configured to prevent the display device 15 from falling off.

  Reference numeral 33 denotes a pressure contact member formed in a rectangular parallelepiped shape by a hard rubber member that can be elastically deformed, and is provided with a recess (not shown) that is press-fitted into the holding portion 28. 28 is attached. The pressure contact member 33 attached to the holding part 28 is provided with a pressure contact surface 33 a that is formed in a flat shape parallel to the holding part 28 and presses the pressure contact part 18.

  As will be described later, when the bracket 25 is attached to the back surface of the display unit mounting portion 6, L1 is a direction in which the pressure contact surface 33a of the pressure contact member 33 attached to the holding portion 28 is oriented, that is, a direction orthogonal to the pressure contact surface 33a. The line -L1 is directed to the rotation shaft 22 as shown in FIG. The L2-L2 line obtained by equally dividing the angle α formed by the vertical portion 29a and the horizontal portion 29b of the support piece 29 is directed to be parallel to the L1-L1 line.

  In such a configuration, the rotating shafts 22 and 22 of the display unit 15 are connected to the first shaft dropout restricting portion 11 and the second shaft dropout restricting portion 12 of the display unit mounting portion 6 as shown in FIG. It is inserted between both shaft slip-out restricting portions 11 and 12 through a gap 13 therebetween. The bearing portions 26 and 26 of the bracket 25 are inserted into the insertion holes 14 and 14 from the back surface side of the display device mounting portion 6, and the bracket 25 is attached to the back surface of the display device mounting portion 6.

  In this state, the rotating shaft 22 is such that one curved surface 22a of the rotating shaft 22 is brought into contact with the shaft contact surface 26a of the bearing portion 26 and the display device 15 can be raised and lowered freely on the display device mounting portion 6. 22 is supported by the bearing 26 so as to be rotatable within a predetermined rotation angle range. Further, at this time, as shown in FIG. 7, with the support piece 29 elastically deformed, the pressed contact portion 18 of the indicator 15 is pressed by the press contact surface 33a of the press contact member 33, and the press contact member 33 is elastically deformed and covered. The pressure contact portion 18 and the pressure contact surface 33a are in surface contact.

  As described above, since the pressure contact member 33 is pressed against the pressure contact portion 18 in a state where the support piece 29 supporting the holding portion 28 is elastically deformed, manufacturing errors of the pressure contact portion 18 and the holding portion 28 are reduced. Even if errors in assembling the bracket 25 to the upper case 3 occur, these errors are absorbed by the elastic deformation of the support piece 29. For this reason, the non-pressure contact portion 18 is always pressed by the pressure contact member 33 with the same pressure contact force, so that the frictional force between the pressure contact member 33 and the pressure contact portion 18 becomes constant. Therefore, the operability when setting the display angle of the display 15 is improved. Further, even if the pressure contact member 33 is worn due to long-term use, a predetermined frictional force is obtained between the pressure contact member 33 and the pressed contact portion 18 by the elastic force of the support piece 29. The problem that the display angle cannot be set is solved.

  Further, as described above, in the state shown in FIG. 6 in which the display unit 15 is laid down on the display unit mounting part 6, the press contact surface 33 a of the press contact member 33 faces the non-press contact part 17 a of the display unit 15. For this reason, when the display 15 is tilted to the display mounting portion 6 from a predetermined display angle, the frictional force generated between the press contact member 33 and the pressed contact portion 18 is released, and thereby the display Since the operator can recognize the state in which 15 is laid down on the display device mounting portion 6, the usability is improved.

  Furthermore, the pressure contact portion 18 is formed in an arc shape with the rotation axis 22 of the display 15 as the center, and the pressure contact portion 18 and the pressure contact member 33 are in surface contact. Even if the pressure is changed, the pressure contact member 33 always presses the pressure contact portion 18 with a constant pressure force. For this reason, since the frictional force between the pressing member 33 and the pressed part 18 is always constant, the operability when setting the display angle of the display 15 is improved.

  Further, since the holding portion 28 that holds the pressure contact member 33 and the bearing portion 26 that supports the rotating shaft 22 of the display unit 15 are integrally provided on the same bracket 25, the pressure contact member 33 held by the holding portion 28 and The positional relationship with the pressed part 18 provided on the display 15 is always constant. For this reason, since the frictional force between the pressing member 33 and the pressed part 18 is always constant, the operability when setting the display angle of the display 15 is improved.

  Here, when the pressure contact portion 18 is pressed by the pressure contact surface 33a, as a reaction force, the pressure contact portion 18 extends from the pressure contact portion 18 to the pressure contact surface 33a of the pressure contact member 33 as shown in FIG. 11A. A load T is applied along, and a load T ′ is also applied to the support piece 29 supporting the holding portion 28. As described above, since the L2-L2 line is oriented so as to be parallel to the L1-L1 line, the load T ′ is applied to the support piece 29 along the L2-L2 line. Since the L2-L2 line is directed in a direction that bisects the angle α formed by the vertical portion 29a and the horizontal portion 29b of the support piece 29, the load T ′ is evenly distributed between the vertical portion 29a and the horizontal portion 29b. Join.

  Therefore, as shown in FIG. 5B, the angle formed by the vertical portion 29a and the line L2 and the angle formed by the horizontal portion 29b and the line L2 are both the same angle β, so that the pressure contact surface 33a is always in the same direction L1. -Orient the L1 line. That is, in FIG. 11, the inclination γ of the pressure contact surface 33a with respect to the horizontal plane is constant. For this reason, even if the support piece 29 is elastically deformed, the contact area of the pressure contact member 33 with the pressure contact portion 18 is always constant, so that the frictional force between the pressure contact member 33 and the pressure contact portion 18 is always constant. Thus, the operability when setting the display 15 to the display angle is improved.

It is a perspective view of the telephone to which the mounting structure of the display which concerns on this invention is applied. It is a perspective view of the state which removed the indicator of the telephone to which the attachment structure of the indicator concerning the present invention was applied. It is a top view of the telephone to which the mounting structure of the display which concerns on this invention is applied. It is the perspective view seen from the bottom face side of the display concerning the present invention. The bracket in the attachment structure of the display which concerns on this invention is shown, The figure (A) is a perspective view, The figure (B) is a rear view, The figure (C) is a top view, The figure (D) is the figure (D). It is V (D) -V (D) sectional view taken on the line in C). It is the VI-VI sectional view taken on the line in FIG. FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. 3 showing a state in which the display is set to a predetermined display angle in the display mounting structure according to the present invention. It is the VIII-VIII sectional view taken on the line in FIG. FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 3 showing a state in which the display is set at a predetermined display angle in the display mounting structure according to the present invention. FIG. 5 is a cross-sectional view taken along the line V-V in FIG. 3 showing a state in which the display is set to the upper display angle in the display mounting structure according to the present invention. In the mounting structure of the display device according to the present invention, it is a schematic diagram for explaining the elastic deformation of the support piece that supports the holding portion, the figure (A) shows a state in which the support piece is not elastically deformed, FIG. 5B shows a state where the support piece is elastically deformed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Telephone, 3 ... Upper case, 5 ... Opening, 6 ... Display mounting part, 10 ... Bearing part, 15 ... Display, 17a ... Non-pressure-contact part, 18 ... Pressure-contact part, 22 ... Rotating shaft, 25 DESCRIPTION OF SYMBOLS ... Bracket, 26 ... Bearing part, 26a ... Shaft contact surface, 28 ... Holding part, 29 ... Supporting piece, 33 ... Pressure contact member, 33a ... Pressure contact surface.

Claims (5)

  An apparatus housing in which a display mounting portion provided with an opening is formed; a display provided with a pressure contact portion that is supported by the display mounting portion in a undulating manner and protrudes from the opening toward the back surface; and A pressure contact member that is pressed against the pressure contact portion and holds the display in a state of being caused by frictional force, and a bracket provided with a holding portion that is attached to the back surface of the display mounting portion and holds the pressure contact member. The display mounting structure, wherein the pressing member is pressed against the pressed contact portion in a state where the holding portion is elastically deformed.   2. The display attachment according to claim 1, wherein the pressure contact portion is formed in an arc shape centering on a rotation axis of the display, and the pressure contact portion and the pressure contact member are in surface contact. Construction.   By providing a non-pressure contact portion that is connected to the pressure contact portion via a stepped portion and is not pressure-contacted by the pressure contact member, the pressure contact member is brought into contact with the non-pressure contact portion by causing the display to fall on the display mounting portion. The display mounting structure according to claim 2, which faces each other.   The display mounting structure according to claim 2, wherein a bearing portion that pivotally supports the rotation shaft of the display is provided integrally with the bracket. The holding portion is supported by a flexible support piece integrally projecting from the bracket, and the pressure contact surface that presses the pressure contact portion of the pressure contact member is always in the same direction by elastically deforming the support piece. 5. The display mounting structure according to claim 1, wherein the support piece is formed in an L shape so as to be oriented.

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