Rotary assembly of a keyboard cover for a portable telephone and corresponding telephone

0001The invention relates to a rotary unit for a keyboard lid a portable phone and a corresponding telephone.

0002There are key cover, which are also referred to as flips, known for portable telephones in which the "drive" or the leadership of the keyboard cover by a pin is realized, whose cross section is not circular and the is clamped between two spring limbs. By runout is the pin placed in the axis of rotation of the keyboard cover is or it forms, in two layers, namely, 0 ° and 180 °, forced.

0003In the longitudinal direction of the axis of the pin which is known Principle rigidly. That is, from when mounting the flip must consist of two halves to allow joining together. This results in larger devices thicknesses and considerable installation costs. Further, it is not possible to provide a system wherein the flip with excessive stress before it was destroyed by Equipment breakage.

0004The invention is therefore based on the object, a rotary unit for the keyboard lid of a portable phone and a to provide appropriate telephone, said rotary unit is simple and compact to fit and the jumping off the allows the Tastaturdeckeis when overloaded.

0005The object is achieved by the features of claim 1 and claim 7 solved. Preferred embodiments of the invention are Subject of the subclaims.

0006The rotary unit of the invention for a keyboard cover a portable phone includes a drive between two spring forces clamped on pin whose radii successively in two main directions perpendicular differently are, with the pin in the longitudinal direction against an axial spring force is movable.

0007Further, the drive spring forces are opposite and act perpendicular to the pin, preferably the driving forces generated by two spring legs of a spring. Preferably can generate the axial spring force by a leaf spring be, but a different design of the spring for generating the axial spring force is possible according to the needs.

0008Further, the spring limbs for generating the driving forces and the spring for producing the axial force in one piece as a spring element formed.

0009Preferably, the pin has a non-circular section and a round portion, whereby the forces of the spring legs at the attack non-circular section.

0010Further, the pin has a coupling element with which the rotary unit is connected to the keyboard lid.

0011Preferably engages in a portable telephone, the keyboard cover a a rotation unit according to the invention which the keyboard cover on one side in a fixed A storage and is on the other side by the rotation unit supported.

0012Preferably, in an opening of the keyboard lid on its desired position, the pin by a securing device against the axial spring force from the keyboard cover pushed out. For example, the security device are formed by a wedge through which the pin out of the Flip is pressed.

0013A preferred embodiment of the invention will be explained with reference to the drawings.<sl><li>1 shows a perspective view of the invention Rotary unit,</li><li>Fig. 2 shows a plan view of the rotation unit in the built- State below 0 ° or 180 °,</li><li>Fig. 3 shows a plan view of the rotation unit in the built- State at 90 ° and 270 °, and</li><li>Fig. Figure 4 shows a plan view of the rotary unit in the built- State wherein the pin by a force from the flip is pushed out.</li></sl>

00141 shows a perspective view of the invention Rotation unit comprising a pin 1 and a spring 2 having. The pin 1 is perpendicular to each other in two Directions different thicknesses, non-round, in other words, for example elliptical. The spring 2 has two spring legs 3 and 4, in which the non-circular pin 1 is clamped and the form the rotational spring drive. has at its one end the pin a pin 5 which in a corresponding opening the spring 2 engages. Further, on the spring legs 3 4 and the opposite end of the spring 6 in a further spring Form of a leaf spring formed a spring force in the axial produced direction of the pin. 1 Furthermore, the pin 1 a circumferential collar 7, which for mounting the rotational unit is required. At its other end, the pin 1 Further, a coupling member 7, the rotating unit with the Keyboard lid (not shown) coupled.

0015Fig. 2 shows the rotation unit used in a portable telephone consisting of the described in connection with FIG. 1 Components. The rotary unit is in a housing 9 is arranged, wherein the spring 6 for generating the axial Spring force clamps the rotating unit in the housing 9, so that the collar 7 abuts against a wall 10 of the housing. 9 The Wall 10 has an opening 11, through which the coupling element 8 passes through and with a corresponding counterpart 12 Testaturdeckels 13 is engaged. is shown in Fig. 2 the situation in which the pin 1 with its narrow side, ie minimum radius arranged, between the spring legs 3 and 4 is. This situation is referred to as angle 0 ° and 180 ° and the stable position of the rotary unit. Further, the pin 1 in this embodiment, in a non-circular part 14 and a circular portion 15 subdivided. At the non-circular Portion 14 engages by the spring legs 3, 4 force exerted on.

0016Fig. 3 shows the situation of the rotary unit at an angle of 90 ° or 270 °. It is clearly evident that now the plane of the non-circular section 14 between the spring legs 3 and 4 is arranged, whereby an increased force is exerted on the pin. 1 This state is at a corresponding Nature of the non-circular section 14 a labile Balance, as at a slight deviation from this State, the spring force of the spring arm 3, 4 is a motion of the Pin generated toward the 0 ° or 180 ° position.

0017Fig. Figure 4 shows the rotation unit when installed in the housing 9. By generating an axial force opposite to the axial Force of the spring 6 is tensioned and this rotation unit can be inserted into the housing. 9 With the elimination of the Compression force of the spring 6 pushes it to pin 1 in the Housing and the coupling unit 8 engages through the opening 11 through and rested in the corresponding counterpart 12 of Tastaturdeckeis a. 13

0018In order to avoid damage to the rotary unit, may, For example, the state of over rotation of the keyboard lid, by a mechanism not shown, such as a wedge, a force in the axial direction of the Pin 1 opposite to the force of the leaf spring 6 generates will. This is the pin 1 against the axial force of the spring 6 is pressed into the housing 9 and the rotation unit dissolves so by the retraction of the keyboard cover. 13

LIST OF REFERENCE NUMBERS

0019<dl tsize="3" compact="compact"><dt>1</dt><dd>pen</dd><dt>2</dt><dd>feather</dd><dt>3</dt><dd>spring leg</dd><dt>4</dt><dd>spring leg</dd><dt>5</dt><dd>spigot</dd><dt>6</dt><dd>leaf spring</dd><dt>7</dt><dd>collar</dd><dt>8th</dt><dd>coupling element</dd><dt>9</dt><dd>housing</dd><dt>10</dt><dd>wall</dd><dt>11</dt><dd>opening</dd><dt>12</dt><dd>Counterpart to the coupling element</dd><dt>13</dt><dd>keyboard cover</dd><dt>14</dt><dd>non-circular portion of the pin</dd><dt>15</dt><dd>round portion of the pin</dd></dl>