CN2381009Y

CN2381009Y - Balancing rod mechanism for multiple push-button

Info

Publication number: CN2381009Y
Application number: CN 99214132
Authority: CN
Inventors: 蔡火炉
Original assignee: Jingyuan Computer Co ltd
Current assignee: Jingyuan Computer Co ltd
Priority date: 1999-06-09
Filing date: 1999-06-09
Publication date: 2000-05-31
Anticipated expiration: 2009-06-09

Abstract

The utility model relates to a balancing rod mechanism for a multiple key. A bridge supporting structure and a balancing rod are pivoted and linked between a key cap and a base plate, and the bottom surface of the key cap is provided with two pairs of pivoting grooves and a pair of guide slide grooves. The bridge supporting structure is a revolving structure formed by the method that a first support and a second support are mutually crossed and pivoted, and the base plate is upward bent to form the guide slide grooves, a bearing groove and a pair of channel elements. The balancing rod is a U-shaped rod body, the flat rod body part of the balancing rod is tabled and pivoted at the bottom surface of the key cap, and the rod body parts at two sides penetrate the corresponding the channel elements on the base plate; the ends of the rod bodies at the two sides of the balancing rod are upward symmetrically bent with bending ends with a proper angle, the bending ends penetrate the circular holes of the channel elements on the base plate, and therefore, the key cap of the multiple key has stabler keying function.

Description

The balancing pole mechanism of multiple button

The utility model relates to a kind of balancing pole mechanism of multiple button, is meant especially to articulate the balancing pole mechanism that interlock has the multiple button of a bridge formation supporting construction and a balancing pole between a kind of keycap and the base plate.

The present employed thin keypressing structure of keyboard of notebook computer, mainly be to articulate between keycap and base plate to link bridge formation formula (or scissors-type) supporting construction is arranged, the application technology of this bridge formation formula supporting construction was all announced on the patent gazette of Taiwan, as: announce No. 282857 " keyboard keyboard structure " patent case, No. 286794 " key switch " patent case of bulletin and announce " key switch " patent case No. 319438 with scissor arm element.This keyboard keyboard structure mainly is applicable to general foursquare button, then needing to install balancing pole in addition additional in button for the long multiple button (as: special function keys such as SPACE, SHIFT, ENTER) of some length on the keyboard, is exactly because the length of multiple button is longer.If in button, do not install balancing pole additional, so when the user be not when pushing the middle position of keycap, will make the multiple button unstable problem that produces, even influence the function of button, therefore, this balancing pole has and prevents that the multiple button from producing the function push inclination.But existing balancing pole is when the quick actuation of keys of reality, still can't avoid the relative dancing of the horizontal direction that produced between keycap and base plate fully, thereby the situation that noise or button operation have some setbacks that produces is often arranged.In order to improve the shortcoming of this kind button, announce in No. 346213 " improvement of multiple key " patent case at the Taiwan patent gazette and to have announced a kind of multiple key structure again, the dual-side of this balancing pole is sheathed with a tubular elastomer respectively, and construct the relative motion that prevents the horizontal direction that produces between keycap and base plate by the fit of this balancing pole and this tubular elastomer, but this structure increases cost and assembles man-hour except other fit two tubular elastomers, and this two-side elastic body is if the phenomenon of elastic fatigue, then still can't avoid the problem of balancing pole one side horizontal hunting, promptly this tubular elastomer that is elastic fatigue does not then have the function that prevents this balancing pole one side horizontal hunting.In addition, change the elastomer of elastic fatigue, increased the inconvenience in the button assembling maintenance significantly, also influenced the result of use of button simultaneously.This shows that above-mentioned existing multiple button is in structure and use all problems of various degrees, remaining further, research improves.

Shortcoming at existing multiple press-key structure, main purpose of the present utility model is: for a kind of balancing pole mechanism of multiple button is provided, it can be when the keycap of multiple button be pushed fast, prevent to produce between keycap and base plate the relative motion of horizontal direction, that avoids that keycap produced when pushing waves crooked and touches the generation noise, thereby has promoted the use effect of multiple button.

For achieving the above object, the balancing pole mechanism of a kind of multiple button of the utility model, articulating interlock between its keycap and the base plate has a bridge formation supporting construction and a balancing pole; Wherein, the bottom surface of this keycap forms first pair of pivot connected slot, second pair of pivot connected slot and a pair of guide runner, and the position then forms a press section in the central; This bridge formation supporting construction is the turn structure that is made of first support and the mutual intersecting axle pivot of second support, and two slide-bar slide hinges of this first cantilever tip are in two guide runners of this keycap bottom surface, the respective shaft pivot part of this second cantilever tip then is articulated in first pair of pivot connected slot of this keycap bottom surface, two slide-bars of this first support bottom then are articulated in the guide runner of two correspondences on this base plate, and the respective shaft pivot of this second support bottom part then is articulated in the corresponding holding groove on this base plate; This base plate bending forming that makes progress has a pair of guide runner, a holding groove and a pair of conduit element, and this base plate is provided with a film circuit board and a flexible member, and this all has the circular hole structure to the conduit element; This balancing pole is one to be the body of rod of U type, and the chimeric axle of the shank portion that it is straight pivot is in second pair of pivot connected slot of this keycap bottom surface, and its both sides shank portion is passed the circular hole of corresponding conduit element on this base plate; The termination, body of rod both sides of this balancing pole is the upwards symmetrical bending end that is bent with a suitable angle, and this symmetrical bending end passes the circular hole of corresponding conduit element on this base plate, and the top turn of this bending end is fixed in the duct of two conduit elements on this base plate.The first pair of pivot connected slot and a pair of guide runner of described keycap bottom surface are the tops that is articulated in this bridge formation supporting construction, and the then chimeric axle of this balancing pole pivot is in second pair of pivot connected slot.Described flexible member upwards withstands the press section of this keycap bottom surface.

Effect of the present utility model is: when quick button, prevented to produce between keycap and base plate relatively moving of horizontal direction; Avoided keycap to produce simultaneously or the generation noise, thereby made keycap have button effect more stably.Its another effect is: owing to upwards pulled on the top by a flexible member in the press section of keycap bottom surface, make keycap have the effect that elasticity is pushed and touch the conducting push button signalling downwards.

For making everybody further understanding and understanding be arranged, the utility model is described in further detail below in conjunction with each accompanying drawing to structure of the present utility model, feature and function thereof.

Fig. 1 is the perspective exploded view of the utility model multiple button.

Fig. 2 is the combining structure schematic diagram of keycap of the present utility model and balancing pole.

Fig. 3 is a balancing pole structural representation of the present utility model.

Fig. 4 is the combination section of the utility model multiple button.

Fig. 5 is subjected to keycap by the action schematic diagram one that touches for balancing pole of the present utility model.

Fig. 6 is subjected to keycap by the action schematic diagram two that touches for balancing pole of the present utility model.

The symbol description of related elements among the figure:

11 first pairs of pivots of 10 keycaps groove of dwelling

12 second pairs of pivots groove 13 press sections 14 guide runners of dwelling

20 base plates, 21 guide runners, 22 holding grooves

24 conduit elements, 241 circular holes, 25 film circuit boards

26 flexible members, 30 bridge formation supporting constructions

31 first supports, 311,312 slide-bars, 32 second supports

321,322 pivot part 40 balancing poles 41 bending ends

Shown in accompanying drawing, the balancing pole mechanism of the utility model multiple button, it is at a

keycap

10 and 20 pivot joints of base plate interlock one a bridge formation supporting construction 30 and a balancing pole 40 to be arranged, and makes this keycap 10 do moving up and down of vertical direction with respect to this base plate 20.

Wherein, form one first pair of pivot connected slot 11, one second pair of pivot connected slot 12 and a pair of guide runner 14 on the bottom surface of this keycap 10, the position then forms a press section 13 in the central, wherein the first pair of pivot connected slot 11 and a pair of guide runner 14 are the tops that are articulated in this bridge formation supporting construction 30, and the then chimeric axle of this balancing pole 40 pivot is in this second pair of pivot connected slot 12.(specifically referring to Fig. 2)

This bridge formation supporting construction 30 is turn structures that are made of one first support 31 and one second support, 32 mutual intersecting axle pivots, and these outward extending slide-bar 311 slide hinges in both sides, first support, 31 top are in a pair of guide runner 14 of this keycap bottom surface, and 321 of the respective shaft pivot parts on these second support, 32 tops are articulated in first pair of pivot connected slot 11 of this keycap bottom surface rotationally; In addition, this outward extending slide-bar 312 in both sides, first support, 31 bottom slidably places this base plate 20 upwards in the two corresponding guide runners 21 of bending rotatably, the respective shaft pivot part 322 of these second support, 32 bottoms then is articulated in this base plate 20 upwards in the corresponding holding groove 22 of bending, therefore, the top of this bridge formation supporting construction 30 and bottom are articulated respectively to be linked between this keycap 10 and the base plate 20, thereby has formed a bridge formation formula press-key structure.

This base plate 20 upwards bending forming has a pair of guide runner 21, a holding groove 22 and a pair of conduit element 24, and this is the pivot ends that link these bridge formation supporting construction 30 bottoms for articulating to guide runner 21 and holding groove 22; On this base plate 20, be provided with a film circuit board 25 and a flexible member 26 in addition in order, and this flexible member 26 upwards withstands the press section 13 of these keycap 10 bottom surfaces, make this keycap 10 have the effect that elasticity is pushed and touch the conducting push button signalling downwards.Circular hole 241 structures as for two conduit elements 24 of this symmetry, in order that make the bending end 41 of these balancing pole 40 both sides be passed this circular hole 241, and be fixed in by the turn of this bending end 41 in the duct of this circular hole 241 (specifically referring to Fig. 5, shown in Figure 6).

This balancing pole 40 is one to be the body of rod of U type, the chimeric axle of its straight shank portion pivot is in second pair of pivot connected slot 12 of these keycap 10 bottom surfaces, its termination, body of rod both sides then is the upwards symmetrical bending end 41 that is bent with a suitable angle, and bending end 41 that should symmetry passes the circular hole 241 of corresponding conduit element 24 on this base plate 20, but the top of these balancing pole 40 both sides bending ends 41 then turn be fixed in circular hole 241 ducts of this conduit element 24.Therefore, this balancing pole 40 has the effect that prevents that this keycap 10 from tilting for the push action of multiple button; In addition, the both sides bending end 41 of this balancing pole 40 can be at this keycap 10 fast when touching, be fixed in the duct of conduit element 24 on this base plate 20 by the turn on its top, bending end 41 both sides, the keycap 10 that makes this multiple button prevents 20 relative motions (specifically referring to Fig. 3, Fig. 5, shown in Figure 6) that produce horizontal direction of itself and base plate when pushing fast.So, can prevent that just this keycap 10 from having the phenomenon of waving and producing noise, the utlity model has the function of use of having promoted the multiple button thereby make.

In sum, the balancing pole mechanism of the utility model multiple button mainly is to make in its duct of being fixed in the conduit element on this base plate by the bending end ground turn of balancing pole both sides, thereby makes the keycap of multiple button have button effect more stably.

Claims

1, a kind of balancing pole mechanism of multiple button, articulating interlock between its keycap and the base plate has a bridge formation supporting construction and a balancing pole;

Wherein, the bottom surface of this keycap forms first pair of pivot connected slot, second pair of pivot connected slot and a pair of guide runner, and the position then forms a press section in the central;

This bridge formation supporting construction is the turn structure that is made of first support and the mutual intersecting axle pivot of second support, and two slide-bar slide hinges of this first cantilever tip are in two guide runners of this keycap bottom surface, the respective shaft pivot part of this second cantilever tip then is articulated in first pair of pivot connected slot of this keycap bottom surface, two slide-bars of this first support bottom then are articulated in the guide runner of two correspondences on this base plate, and the respective shaft pivot of this second support bottom part then is articulated in the corresponding holding groove on this base plate;

This base plate bending forming that makes progress has a pair of guide runner, a holding groove and a pair of conduit element, and this base plate is provided with a film circuit board and a flexible member, and this all has the circular hole structure to the conduit element;

This balancing pole is one to be the body of rod of U type, and the chimeric axle of the shank portion that it is straight pivot is in second pair of pivot connected slot of this keycap bottom surface, and its both sides shank portion is passed the circular hole of corresponding conduit element on this base plate;

It is characterized in that: the termination, body of rod both sides of this balancing pole is the upwards symmetrical bending end that is bent with a suitable angle, this symmetrical bending end passes the circular hole of corresponding conduit element on this base plate, and the top turn of this bending end is fixed in the duct of two conduit elements on this base plate.

2, the balancing pole mechanism of multiple button according to claim 1, it is characterized in that: the first pair of pivot connected slot and a pair of guide runner of described keycap bottom surface are the tops that is articulated in this bridge formation supporting construction, and the then chimeric axle of this balancing pole pivot is in second pair of pivot connected slot.

3, the balancing pole mechanism of multiple button according to claim 1, it is characterized in that: described flexible member upwards withstands the press section of this keycap bottom surface.