Portable stylus pen
Technical field
The invention belongs to the peripherals in computer input field, is to be applied to the outside handwriting input of computing machine and portable writing pencil.
Background technology
Track input computer equipment is a kind of important computing machine external input device, and wherein handwriting input mode is the most important and general, except the hand-written script input, also is widely used in a plurality of fields and the industries such as drawing, the fine arts, advertisement and bank.
Electromagnetic type writing pencil in writing pencil generally has the electromagnetic induction circuit, and the signal measurement apparatus after electromagnetic induction circuit and supporting handwriting pad is responded to as antenna plate etc., the electric current that changes, thus hand-written information is gone on record.
Patent CN88104538 discloses a kind of coordinate entering device for handwriting input, wherein coordinate indicator is a writing pencil, in formed by electric capacity and coil, can receive and emitting radio waves, and induced corresponding to the position by coil groups, simultaneously, Chinese patent CN01145283 also discloses a kind of writing pencil, also formed by magnetic element and coil, can locate according to the variation of frequency and pressure, above-mentioned two schemes can be completed handwriting input, but equipment itself is integrative-structure, is unsuitable for and carries and use on portable set.
Two kinds of above-mentioned writing pencils that hand input device uses, handwriting is all to present one-piece construction, volume is larger, is not easy to carry or folding the placement.
Summary of the invention
Purpose of the present invention just is to provide a kind of portable stylus pen.Writing pencil is comprised of penholder and movable part, after both connect, carries out pull or folding, can make writing pencil effectively flexible, is convenient for carrying and settles, and is simple and reliable, is applicable to portable handwriting input device.
Writing pencil comprises penholder and movable part, and movable part can move with respect to penholder; Penholder inside is provided with electric capacity and coil, realizes receiving and return electric signal with supporting handwriting pad; Wherein, penholder is provided with guide groove, and described guide groove axially arranges along penholder.
Described movable part can with the coaxial assembling of penholder, the end of penholder is circumferentially with dop a, the front end inner circumferential of movable part is provided with dop b, the diameter of dop b equivalence is between the diameter of the external diameter of penholder and dop a equivalence, movable part and penholder transition fit, movable part is nested on penholder, limits the position of movable part by the dop of penholder, prevents that movable part and penholder break away from; The suitable guide groove of movable part is along the penholder axially-movable.
The connected mode of described movable part and penholder is transition fit, is preferably clearance fit.
Described movable part can break away from penholder, forms connect-disconnect structure with penholder, and the internal diameter of movable part is greater than the external diameter of penholder, and movable part can directly plug in penholder.
Portable stylus pen of the present invention with respect to advantage and the effect of present prior art is:
1, movable part of the present invention can move with respect to penholder, is convenient for carrying especially and places, and is applicable to portable handwriting input device.
2, movable part of the present invention is connected the form of multiple connection and cooperation with penholder, is suitable for the needs under different scenes, as e-book formula hand input device.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is the structure for amplifying schematic diagram of the portable stylus pen embodiment 1 that proposes of the present invention;
Fig. 2 is the structural profile schematic diagram of the portable stylus pen embodiment 1 that proposes of the present invention;
Fig. 3 is the structural representation of the portable stylus pen embodiment 2 that proposes of the present invention;
Fig. 4 is the front elevation of the portable stylus pen embodiment 2 that proposes of the present invention;
Fig. 5 is the structural representation of the portable stylus pen embodiment 3 that proposes of the present invention.
Illustrate in figure: 1, penholder; 2, movable part; 3, rotation axis; 101, dop a; 102, guide groove
201, dop b 202, groove position.
Embodiment
The portable stylus pen that the present invention is mentioned, writing pencil comprise penholder 1 and movable part 2 two parts, and movable part 2 can be with respect to penholder 1 activity.in actual applications, mostly the hand input device that is used in conjunction with computing machine is the electromagnetic type hand-written painting plate, embodiments of the invention are take the electromagnetic type hand-written painting plate as example, described writing pencil is exactly the electromagnetic type writing pencil, penholder 1 inside of writing pencil comprises electric capacity and coil, can receive and return electric wave signal, it is exactly hand-written painting plate that hand-written signal is measured treating apparatus essence, namely can paint and the platy structure part of writing, below hand-written painting plate a plurality of coil circuits are arranged, after the coil circuit energising, form electromagnetic field in the certain space scope, respond to writing pencil with the position of the nib of electric capacity and coil, thereby the electric current that changes into variation is processed.
Embodiment one:
As shown in Figure 1, writing pencil is comprised of penholder 1 and 2 two parts of movable part, and movable part 2 can be drawing structure with respect to penholder 1 axially-movable, i.e. movable part 2 and the coaxial assembling of penholder 1, and penholder 1 is nested among movable part 2.Movable part 2 is enclosed within the rear portion of penholder 1, and internal diameter and penholder 1 external diameter with penholder 1 assembling port of movable part 2 are transition fit, and tolerance clearance is optimum when being zero clearance fit.The end of penholder 1 is circumferentially with dop a101, the external diameter of dop a101 equivalence (height of the dop a101 of 2 times and penholder 1 external diameter sum) is greater than the external diameter of penholder 1, and the internal diameter of the movable part 2 corresponding with it is greater than the external diameter of dop a101 equivalence, the front end inner circumferential of movable part 2 is provided with dop b201, the equivalent internal diameter of dop b201 (the dop b201 height of the interior electrical path length of movable part 2 and 2 times poor) greater than the external diameter of penholder 1, can guarantee that like this movable part 2 endwisely slips along penholder 1; The equivalent internal diameter of dop b201 is less than the external diameter of dop a101 equivalence, guarantee that like this movable part 2 is when axially moving to maximum length along penholder 1, dop a101 and dop b201 touch mutually, thereby have limited the motion amplitude of movable part 2, prevent movable part 2 hyperkinesias and come off.Be transition fit between movable part 2 and penholder 1.When movable part 2 and penholder 1 pull open as maximum length, be convenient to grip, when shortening to minimum length, also be easy to carry and place.
The external diameter of movable part 2 also can be less than the internal diameter of penholder 1, and such movable part 2 is nested in the inside of penholder 1, and flexible similar process repeats no more.
Also can be arranged to guide barrel construction between movable part 2 and penholder 1, as shown in Figure 2, the both sides of penholder 1 arrange guide groove 102, and movable part 2 can axially slide in guide groove 102 with respect to penholder 1, namely can shorten volume when carrying, and also can extend and be convenient to grip.Simultaneously, dop structure and guide barrel construction can exist simultaneously, and not only axial pull, can also guarantee that in pull, radial rotating does not occur movable part 2, makes work more reliable and stable.
Embodiment two:
As shown in Figure 3, in the present embodiment, movable part 2 is rotationally connected assembling with penholder 1, and movable part 2 is connected with penholder 1 by rotation axis 3, and movable part 2 is framed structure.As shown in Figure 4, movable part 2 axially has groove position 202, the width of groove position 202 is greater than the diameter of penholder 1, and penholder 1 can be folded into by rotation axis 3 in the groove position 202 of movable part 2 and place, like this, just can rotate 180 degree, penholder 1 is placed in groove position 202, makes the contraction in length of pen nearly 1/2nd, and when opening penholder 1 from groove position 202, the length of whole writing pencil increases, and more is convenient to grip.
Embodiment three:
As shown in Figure 5, in the present embodiment, movable part 2 is movable connect-disconnect structure with penholder 1, and the internal diameter of movable part 2 is greater than the external diameter of penholder 1, and both are clearance fit.Movable part 2 can directly vertically plug in the two ends of penholder 1, can insert very easily or extract, and can protect the writing pencil nib during insertion, is enclosed within the length that penholder 1 rear end can extend pen after extracting, and its more convenient gripping is used.
Above-mentioned technical scheme just can accomplish being easy to carry about with one of writing pencil and be convenient to place.
Although the several preferred embodiments of the present invention only have been described here, its meaning be not limit the scope of the invention, applicability and configuration.On the contrary, to the detailed description of embodiment, those skilled in the art are implemented.Will be understood that not departing from the definite spirit and scope of the invention situation of appended claims, can make suitable change and modification to some details.