Patent Application
20080110737
1. Field of the Invention
The present invention relates to a trigger device, and more particularly to a trigger device used in a palmtop computer.
2. Description of Prior Art
To expedite distributions, logistics and warehouse businesses and process a large quantity of data in the shortest time, a bar code is the trend for products of our daily life. Not only supermarket, warehouse and distribution businesses use bar codes as a tool for controlling merchandises, but payments for parking tickets, credit cards and other bills also use bar codes as a necessary input tool. Further, a bar code cannot be read and determined visually and totally relies on a palmtop computer such as a scanner for its operation. Therefore, it is a main subject of the present invention to find a way of enhancing the operability and convenience.
In general, a traditional trigger device of a palmtop computer having a magnetic switch includes a retaining frame, a swing arm, a toggle switch and a resilient member, wherein an end of the swing arm is connected to a middle section of the retaining frame and another end of the swing arm is connected to a magnetic sensor, and an end of the toggle switch is pivotally connected to the top of the retaining frame, and a pressing rod is formed on the toggle switch for pressing the swing arm, and the resilient member is connected separately to the retaining frame and the swing arm, such that when the toggle switch is pressed, the sensor of the swing arm will be controlled to turn on or off the palmtop computer.
However, there are still some drawbacks existed in the practical applications of traditional trigger devices used in palmtop computers. Since a traditional device usually does not come with a touch component, users cannot observe a palmtop computer being turned on and reading data while the toggle switch is moved backward all the way to the end of its traveling path. As a result, users may press the toggle switch repeatedly to read data, or users may press the toggle switch too long that rapidly wastes a great deal of power consumption of the palmtop computer and greatly lowers its operability and convenience. The foregoing shortcomings of the prior art demand immediate attentions and require further improvements.
In view of the foregoing shortcomings of the prior art, the inventor of the present invention based on years of experience in the related industry to conduct experiments and modifications, and finally designed a trigger device for a palmtop computer in accordance with the present invention to overcome the shortcomings of the prior art.
The present invention is to overcome the shortcomings and avoid the existing deficiencies of the prior art by providing a trigger device for a palmtop computer, wherein a touch component is installed between a retaining frame and a toggle switch, such that when the toggle switch is pressed, obvious feel and touch of a click can be provided to greatly enhance the operability and convenience.
The invention provides a trigger device that comprises a retaining frame, a swing arm, a toggle switch, a resilient member and a touch component. An end of the swing arm is connected to the middle section of the retaining frame, and another end of the swing arm is connected to a magnetic sensor and an end of the toggle switch is pivotally connected to the top of the retaining frame, and a pressing rod is formed on the toggle switch for pressing the swing arm. The resilient member is connected separately to the retaining frame and the swing arm. The touch component is fixed in the retaining frame and installed at another end corresponding to the toggle switch, and an elastic button is installed between the touch component and the toggle switch for pressing the toggle switch.
The features of the invention believed to be novel are set forth with particularity in the appended claims. The invention itself however may be best understood by reference to the following detailed description of the invention, which describes certain exemplary embodiments of the invention, taken in conjunction with the accompanying drawings in which:
The technical characteristics, features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiments with reference to the accompanying drawings.
Referring to
The retaining frame 10 is a rectangular frame being formed by a plurality of surrounding panels and comprising: two corresponding support arms 11 protruded outward from the top of the retaining frame 10; a through hole 12 connected to an end of each support arm 11; a transversal stop board 13 disposed at the middle of the rear of the two support arms 11 for limiting the swinging scope of the end of the swing arm 20; a transversal rod 14 disposed on both left and right sides of the bottom of the stop board 13; a fan-shaped hole 15 disposed at the middle section of the stop board 13 on the right side; and a containing groove 16 disposed on a board behind the fan-shaped hole 15.
The swing arm 20 is substantially in a n-shape, and comprises a fan-shaped member 21 protruded separately from the exterior of the bottom of both left and right sides and passed through the fan-shaped hole 15 of the retaining frame 1O. The swing arm 20 forms a rectangular groove 22 at the top of the swing arm 20, and the groove 22 is provided for installing and connecting a magnetic sensor 23, wherein the magnetic sensor 23 can be a permanent magnet, and the groove 22 forms a transversal rod body 24 under the groove 22.
The toggle switch 30 comprises a cap-shaped triggering portion 31, two corresponding protruding shafts 32 protruded from both left and right sides of the triggering portion 31 and pivotally connected to a through hole 12 of the retaining frame 10, a L-shaped pressing board 33 protruded backward from the bottom of the triggering portion 31, and two pressing rods 34 disposed at the lower edge of the triggering portion 31 and corresponding to both left and right side arms of the swing arm 20 for pressing and swinging the swing arm 20.
The resilient member 40 can be a tension spring having a hook 41 extended from both upper and lower ends of the resilient member 40, and the hooks 41, 42 are hooked onto the transversal rod 14 of the retaining frame 10 and the rod body 24 of the swing arm 20 respectively.
The touch component 50 can be a micro switch, but the micro switch is not electrically connected and it also conducts no transmission of electric signals. The touch component 50 comprises a base 51 and an elastic button 52 protruded from the front of the base 51, and the base 51 is mounted into the containing groove 16 of the retaining frame 10, and the elastic button 52 is installed corresponding to the pressing board 33 of the toggle switch 30, such that the touch and feel of a click can be produced during an operation. In addition, the touch component 50 of the invention further comprises a connected elastic plate 53 disposed at the bottom of the base 51 and extended obliquely outward, so that after the pressing board 33 of the toggle switch 30 is pressed onto the elastic plate 53, the elastic plate 53 will be pressed on the elastic button 52 to produce a feel of the click.
Referring to
Referring to
In summation of the description above, the trigger device used in a palmtop computer of the present invention complies with the patent application requirements, and thus is duly filed for patent application.
The present invention are illustrated with reference to the preferred embodiment and not intended to limit the patent scope of the present invention. Various substitutions and modifications have suggested in the foregoing description, and other will occur to those of ordinary skill in the art. Therefore, all such substitutions and modifications are intended to be embraced within the scope of the invention as defined in the appended claims.
