JP3634002B2 - Mobile terminal stand - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a table for a portable terminal device such as a portable information processing terminal device or a portable wireless telephone device.
[0002]
[Prior art]
Conventionally, information processing terminal devices are generally installed and used on desks in offices, etc., but due to remarkable progress in technology in recent years, further miniaturization of terminal devices has progressed. Information processing terminal devices have been developed. From such a background, it is necessary to bring a portable terminal device used outdoors to the office etc. to charge it, or to have a stand with an interface function for transmitting the collected information to the central processing terminal device etc. It has become.
[0003]
[Problems to be solved by the invention]
However, conventional mobile terminal device stands cannot be switched in angle with respect to the installation surface of a desk or the like, and when the mobile terminal device is placed on the stand, the screen is difficult to see due to the reflection of light. There was a problem of garlic.
[0004]
The present invention solves such a conventional problem, and an object of the present invention is to provide a stand for a portable terminal capable of switching an angle with respect to an installation surface.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides an arm that is pivotally attached to a shaft provided on both side surfaces of a housing by a long hole in a base end portion, and a housing that regulates the rotation angle of the arm. a plurality of recesses provided on the arm base end portion engaged with the projection and the projection provided on the body, with pressing the recess in the projection, to permit escape from the projections by the long hole of the arm base end section And a spring.
[0006]
[Action]
Therefore, according to the present invention, by rotating the arm, the protrusion that regulates the rotation angle of the arm is fitted into another recess, and the angle with respect to the installation surface can be switched. Since the holding is performed by one spring, it is possible to realize a pedestal with an angle switching function with a simple configuration.
[0007]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the appearance of a portable terminal device according to an embodiment of the present invention as viewed from the rear. In FIG. 1, the portable terminal device is mounted on the mounting surface 2 on the upper surface of the housing 1. The side surfaces 3 on both sides of the housing 1 are formed so as to gradually increase in width from the front to the rear indicated by the arrow F, and the mounting surface 2 is formed so that the rear side becomes higher. An angle switching mechanism 4 is provided on the rear side from the center of the side surfaces 3 of the housing 1. The angle switching mechanism 4 includes an arm 5 that is provided on both side surfaces 3 of the housing 1 so that a base end portion 5a can be rotated. A support rod 6 is connected to a distal end portion 5b of the arm 5. When the arm 5 is rotated in the direction of arrow A, the distance between the mounting surface 2 of the housing 1 and the support bar 6 increases, and the inclination angle of the mounting surface 2 increases. The load at the rear part of the cradle is mainly received by the support bar 6.
[0008]
FIG. 2 shows details of the angle switching mechanism 4. On both side surfaces 3 of the housing 1, recesses 7 for accommodating the arms 5 are formed. A circular boss 8 is formed in the recess 7, and a rectangular arc-shaped protrusion 9 is formed in the vicinity thereof. Reference numeral 8 a denotes a screw hole formed at the center of the boss 8. The arm 5 has a large-diameter base end portion 5a and a small-diameter distal end portion 5b, and a long hole 10 through which the boss 8 passes is formed at the center of the large-diameter base end portion 5a. The base end portion 5a is formed in a shallow bottomed cylindrical shape, and on the back side thereof, as shown in FIG. 2 (b), around the bottom long hole 10 is opened U opposite to the front end portion 5b. A letter-shaped guide rib 11 is formed, and on the inner wall of the cylindrical portion, there are locking ribs 13 and 14 for locking the end portions of the leaf springs 12 on the left and right sides of the open end of the guide rib 11, and three on the tip portion 5b side. Two concave portions 18 and 19 formed by the convex portions 15, 16 and 17 are formed. The central convex portion 16 is longer than the other convex portions 15 and 17, and both side surfaces thereof are inclined so as to guarantee the movement of the projection 9 on the side surface 3 of the housing that engages with the concave portion 18 or 19. . A D-shaped hole 20 is formed on the back side of the tip 5b of the arm 5 so as to fit into the D-cuts 6a at both ends of the support bar 6. The outer diameter of the tip 5b and the outer diameter of the support bar 6 are as follows. It is the same.
[0009]
The assembly of the angle switching mechanism 4 described above is performed as follows. First, both ends of the leaf spring 12 are attached to the locking ribs 13 and 14 in a state where they are somewhat elastically deformed by the guide ribs 11. Next, the base end portion 5 a of the arm 5 to which the leaf spring 12 is attached is pushed in while either one of the recesses 18 and 19 is aligned with the projection 9 of the housing side surface 3 and the long hole 10 is aligned with the boss 8. Next, a flat washer 21 is inserted into the tip of the boss 8 slightly protruding from the long hole 10, and the screw 22 is screwed into the screw hole 8 a of the boss 8 and fixed. Next, after the D-cut portion 6a on one end side of the support bar 6 is inserted and fixed to the tip portion 5b of the arm 5 on one side, the other end side of the support rod 6 is also inserted on the tip portion 5b of the arm 5 on the other side. The D-cut portion 6a is inserted and fixed, and the base end portion 5a of the arm 5 is attached to the housing side surface 3 in the same manner.
[0010]
Next, the angle switching operation of the above embodiment will be described with reference to FIGS. 3 and 4 are cross-sectional views of the arm 5 along the side surface 3 in a state where the arm 5 is attached to the side surface 3 of the housing. FIG. 3A shows a state where the rotation operation for switching the angle is not performed, and the projection 9 on the side surface 3 of the housing is fitted in the first recess 18. Further, since the boss 8 is pressed against the guide rib 11 by the reaction force of the leaf spring 12 locked to the locking ribs 13 and 14, the arm 5 does not rattle. Next, when the arm 5 is rotated in the direction of arrow A for angle switching, the central convex portion 16 starts to get over the projection 9 as shown in FIG. Accordingly, the arm 5 starts to move in the direction of the arrow B as a whole, and the leaf spring 12 is bent by the boss 8. This movement is allowed by the slot 10 of the arm 5. When the arm 5 is further rotated in the direction of arrow A, as shown in FIG. 4A, the central convex portion 16 rides on the protrusion 9, and the leaf spring 12 is subjected to the maximum deformation by the boss 8. When the arm 5 is further rotated in the direction of arrow A, as shown in FIG. 4B, the entire arm 5 returns to the direction of arrow C due to the restoring force of the leaf spring 12, and the protrusion 9 becomes the second recess 19. The arm 5 is fixed at that position, and the angle switching operation is completed. In order to return the arm 5 to the original home position, the arm 5 may be rotated in the direction opposite to the A direction.
[0011]
In the above embodiment, the switching angle can be arbitrarily set by changing the circumferential distance of the central convex portion 16. Further, if the two recesses 18 and 19 are made three, the angle can be switched in three stages. Further, the convex portion 15 may be eliminated, the concave portion 18 may be eliminated, and the arm 5 may be supported by the wall surface 7a of the concave portion 7 of the housing side surface 3 at the home position. Further, a pin and a piano wire may be used in place of the protrusion 9 and the leaf spring 12, and the connecting rod 6 may be omitted in some cases. In addition, this embodiment can be variously changed.
[0012]
【The invention's effect】
As is apparent from the above embodiments, the present invention regulates the arm pivotally attached to the shaft provided on both side surfaces of the housing by the elongated hole at the base end, and the rotation angle of this arm. Protrusions provided on the housing and a plurality of recesses provided at the arm base end that engages with the protrusions, and the recesses are pressed against the protrusions , and escape from the protrusions is permitted by the elongated holes at the arm base ends. Therefore, by rotating the arm, the protrusion that regulates the rotation angle of the arm is fitted into another recess, and the angle with respect to the installation surface can be switched. Since the switching and holding are performed by a single spring, it is possible to realize a pedestal with an angle switching function with a simple configuration.
[Brief description of the drawings]
FIG. 1 is a rear perspective view of a cradle according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of an angle switching mechanism in the cradle. FIG. [Fig. 4] Partial sectional view showing angle switching operation in the same table [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Housing | casing 2 Mounting surface 3 Side surface 4 Angle switching mechanism 5 Arm 6 Support bar 7 Recess 8 Boss 9 Protrusion 10 Elongation hole 11 Guide rib 12 Leaf springs 13 and 14 Engagement ribs 15, 16, 17 Protrusion 18, 19 Recess 20 D-shaped hole 21 Flat washer 22 Screw

Claims (3)

A casing formed with shafts on both sides, an arm provided on both sides of the casing and pivotally attached to the shaft by a long hole at the base end, and the vicinity of the shaft of the casing a protrusion for restricting the rotation angle of the arm provided, a plurality of recesses for engaging the projection provided at the base end portion of said arm, said recess provided at the base end portion of the arm A pedestal for a portable terminal device comprising a leaf spring or a wire spring that presses against the protrusion and allows escape from the protrusion through the elongated hole . The stand of the portable terminal device according to claim 1 , wherein the direction of the long axis of the elongated hole in the base end portion is the same as the direction in which the leaf spring or wire spring presses the recess against the protrusion . The stand of the portable terminal device according to claim 2, wherein tip ends of both arms attached to both side surfaces of the housing are connected by a support bar.

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