CN2394309Y

CN2394309Y - Double-link keyboard keys

Info

Publication number: CN2394309Y
Application number: CN 99248652
Authority: CN
Inventors: 赖国炎
Original assignee: YINGQUN ENTERPRISE CO Ltd
Current assignee: YINGQUN ENTERPRISE CO Ltd
Priority date: 1999-09-27
Filing date: 1999-09-27
Publication date: 2000-08-30
Anticipated expiration: 2009-09-27

Abstract

A double-link keyboard key is composed of a keyboard base with a key top supported by an external link and an internal link, an elastic body at the bottom of key top for triggering electric contact, a slide shaft and a shaft seat embedded in said key top and base plate, and an oblique guide at the open end of each shaft seat for quickly pressing the external link, internal link, key top and base plate in order to fix the key top.

Description

The double-connecting rod type keyboard

The utility model is the button about a kind of computor-keyboard, is meant a kind of double-connecting rod type keyboard especially.

Conventionally known computor-keyboard pushbotton mostly is to protrude out cylinder downwards by the keycap bottom, makes vertical stretching motion in the opening of base, in order to trigger the keyboard electric terminal.Be subjected to this structural restriction, this Computer key if the contact-making surface of design keycap cylinder and base too hour, promptly easy generation keycap inclination or wild effect such as card key is arranged operation in, thereby must strengthen the stability that above-mentioned contact-making surface increases keycap by mat.Moreover, because the relation of vertical stretching motion is arranged between keycap and the base, make keycap be difficult to fastened location, thereby the instability of traditional keycap rock situation, also comparatively serious with actual operation noise.

Another problem is, in view of compact computer more and more is subjected to pay attention to (such as portable computer), if solve stability problem that keycap moves both vertically and distance between increasing between keycap and base, then the keyboard integral thickness will obviously increase, and so promptly is difficult to meet compact conditional request.

A kind of keyboard that utilizes the double link parallel mechanism to be formed, can solve the disappearance puzzlement of above-mentioned vertical column formula keycap, but, this type of known double link parallel mechanism formula keyboard, mostly be that design is controlled the keycap motion by two frame components, because the connecting rod of frame component, axle, to reach sliding surface etc. interlaced, very trouble is bothersome in the assembling, especially each button is one group of double-connecting rod type mechanism on the computor-keyboard, so the time cost height of keyboard assembling still is not inconsistent economic benefit in the manufacturing.

The purpose of this utility model, provide a kind of double-connecting rod type keyboard, energy Rapid Combination two connecting rods also make supported keycap strong fix, when the keycap pressurized, can obtain the upper and lower displacement campaign of balance and stability, the wild effect that can avoid keycap to tilt or block key fully can reduce the keycap descending stroke, to obtain the thinnest computor-keyboard of thickness, and black box is simple and easy and can make assembling more convenient, reduces the combination operating cost.

The technical solution of the utility model is:

A kind of double-connecting rod type keyboard comprises keycap, outside connecting rod, inside connecting rod, bedplate, circuit board, elastomer, it is characterized in that;

The root edge face of this keycap is respectively equipped with a pair of axle bed and a pair of chute near the position of outer side edges, openend in this two axle bed is respectively equipped with an oblique guide surface, openend in this two chute also is respectively equipped with oblique guide surface, medial extremity in this two chute, be respectively equipped with a block, in the middle of the keycap root edge, be provided with a circular groove;

This outside connecting rod, one side are provided with the axle in the axle bed that is embedded at keycap, and the middle part is provided with central axis seat, are respectively equipped with oblique guide surface in the openend of this central axis seat, and another side is provided with slide-bar;

This inside connecting rod one side is provided with axle, and the middle part is provided with the axis of the central axis seat that is embedded at outside connecting rod, and another side is provided with slide-bar, and the axial wall plane of this slide-bar is provided with oblique guiding oblique angle, and this slide-bar is embedded in the chute of keycap;

Be respectively equipped with a pair of axle bed and a pair of chute on this bedplate, this two axle beds openend is respectively equipped with oblique guide surface, the openend of this two chute also is respectively equipped with oblique guide surface, the axle of this inside connecting rod is embedded in the axle bed of bedplate, the slide-bar of this outside connecting rod is embedded in the chute of bedplate, and two staggered inside connecting rod and outside connecting rods are mutually combined;

This elastomer, top are provided with circular stiff end and are embedded in the keycap circular groove, and Lower Half is for having the elastic tip of elasticity, and root edge presses the electric terminal of circuit board, form the key switch of keyboard.

Described double-connecting rod type keyboard is characterized in that: this outside connecting rod and inside connecting rod are the shaped as frame structure of sealing.

Described double-connecting rod type keyboard is characterized in that: this outside connecting rod and inside connecting rod are U glyph framework structure.

Effect of the present utility model is:

The utility model of combination back, but the staggered double link effect of the inside and outside connecting rod of mat make the keycap 10 can be with minimum stroke vertically downward, and mat elastomer 50 presses down circuit board 60 and the conducting electric terminal; Decontrol keycap 10, promptly the elastic reaction by elastomer 50 recoils to the origin-location with keycap 10.

The keycap 10 of vertical stretching motion is except providing with the minimum stroke knee-action puzzlement of also effectively avoided the keycap inclination, rocking or blocking key; When assembling, the design because of

guide surface

13,14,23,42,44 of the present utility model and guiding oblique angle 34 can make the quick combination of inside and outside connecting rod, simplifies the operation, and can therefore make the double-connecting rod type computor-keyboard that integral thickness is the thinnest, structure is the most firm.

Therefore, the utility model as mentioned above, be positioned at the staggered position between two staggered inside and outside connecting rods, and the contact site between the keycap, bedplate, be designed to have the guide surface of suitable oblique angle and the chute and the axial trough at guiding oblique angle, relative slide-bar makes in can be set fast, form bonding state, and make the keycap strong fix, can improve old-fashioned keyboard press button structure disappearance, promote stability, simplify the assembling formality.

Below cooperate diagram, describe the utility model one specific embodiment in detail.

Illustrate:

Fig. 1 is the assembly exploded view of the utility model.

Fig. 2 is the combination of side view of the utility model.

Fig. 3 is the utility model is dismantled the back on bedplate a vertical view.

Fig. 4 is that keycap is inverted figure in the utility model Assembly Action.

Fig. 5 is the utility model Assembly Action China and foreign countries' connecting rod assembly figure.

Fig. 6 is an inside connecting rod constitutional diagram in the utility model Assembly Action.

Fig. 7 is an elastomer constitutional diagram in the utility model Assembly Action.

Fig. 8 is a circuit version constitutional diagram in the utility model Assembly Action.

Fig. 9 is a bedplate constitutional diagram in the utility model Assembly Action.

Figure 10 is inside and outside connecting rod and a bedplate constitutional diagram in the utility model Assembly Action.

Figure 11 finishes figure for the utility model assembling.

The utility model illustrated embodiment in conjunction with the accompanying drawings is described in detail as follows:

As shown in fig. 1, double-connecting rod type keyboard of the present utility model, be included in the position of each key switch bedplate 40 on the keyboard pedestal, be provided with staggered each other an outside connecting rod 20, an inside connecting rod 30, an elastomer 50 and circuit board 60, supporting to be positioned at the keycap 10 on top jointly.

Above-mentioned keycap 10, be included in the position of the bottom surface of keycap near outer side edges, be respectively equipped with two axle beds 11 and two chutes 12, the openend of this two axle bed 11 is respectively equipped with the guide surface 13 of a suitable oblique angle, is positioned at the openend of this chute 12, also is respectively equipped with the guide surface 14 that is suitable oblique angle, other is positioned at the medial extremity of this chute 12, be respectively equipped with a block 15, be positioned in the middle of keycap 10 root edges, be provided with a circular groove 16.

Outside connecting rod 20 and inside connecting rod 30, wherein, this outside connecting rod 20 is a shaped as frame structure, one of frame end is the axle 21 of two protrusions, central axis seat 22 is set between among the frame, and a side of central axis seat 22 is provided with guide surface 23, the other end of frame is the slide-bar 24 of two protrusions, surrounds a hole 25 in the frame.

Inside connecting rod 30 is a plate shape structure, and a side is an axle 31, and the middle part is provided with the axis 32 of protrusion, two axis, 32 ends are provided with lead-in chamfered 35, another side is that the end of two slide-bar 33, two slide-bars 33 that protrude is provided with guiding oblique angle 34, forms a circular hole 36 in the middle of the plate shape structure.

The shaped as frame hole 25 of above-mentioned outside connecting rod 20, its dimensions are greater than dimensions outside the inside connecting rod 30, and ccontaining this inside connecting rod 30 of energy.

This bedplate 40 comprises being positioned at appropriate location on this bedplate 40, be respectively equipped with a pair of axle bed 41, with a pair of chute 43, these two axle beds, 41 openends, be respectively equipped with the guide surface 42 that is suitable oblique angle, the openend of this two chute 43 also is not the guide surface 44 of suitable oblique angle respectively.

Elastomer 50, promptly as traditional finding, be included in its top and be set as circular stiff end 51, just can be embedded in the circular groove 16 of aforementioned keycap 10 root edge centres, the elastic tip 52 of elastomer 50 Lower Halves for having suitable telescopic resilience, the root edge system of elastomer 50 forms the key switch of keyboard in order to press circuit board 60 surfaces.

Below cooperate Fig. 4 to Figure 11, the combination action of above-mentioned respectively this member be described:

1, at first keycap 10 reverse side is put, as Fig. 4;

2, the axle 21 of outside connecting rod 20 is pressed into the axle bed 11 of keycap 10, as Fig. 5;

3, axle 32 among the inside connecting rod 30 is pressed into axle bed 22 among the outside connecting rod 20;

Again the slide-bar 33 of inside connecting rod 30 is pressed into the chute 12 of keycap 10, as Fig. 6;

4, the stiff end 51 of elastomer 50 is passed through the circular hole 36 of inside connecting rod 30, be pressed into the circular groove 16 of keycap 10, as Fig. 7;

5, place circuit board 60, as Fig. 8;

6, the axle 31 of inside connecting rod 30 is pressed into the axle bed 41 of bedplate 40, and the slide-bar 24 of outside connecting rod 20 is pressed into the chute 42 of bedplate 40, as Fig. 9;

7, the elastic tip 52 of elastomer 50 is being pressed circuit board 60 and bedplate 40, makes keycap 10 remain in a high position, as Figure 10;

8, the position of block 15 restriction inside connecting rods 30 slide-bars 33 of keycap 10, it is fixing high-order that keycap 10 is remained on, as Figure 11.

Laminate the double-connecting rod type keyboard of combination as mentioned above, utilize staggered each other outside connecting rod 20 and inside connecting rod 30 supporting top keycap 10, form a double-connecting rod type keyboard, especially with wherein, but mat laminates the operation of combination, with two staggered in, staggered position between outside connecting rod, with keycap 10, contact site between the bedplate 40 etc., directly be pressed into chimeric, and the opening of this axle bed and chute respectively is respectively equipped with the guide surface of suitable oblique angle, by this guide surface respectively, make keycap and outside connecting rod, combination between the inside connecting rod is more quick, simultaneously this keyboard can easily be combined on the keyboard base plate 40.

Outside connecting rod 20 and inside connecting rod 30 that previous embodiment disclosed also can be made slight variations, for example with two U glyph framework that width is different, replace sealing shaped as frame structure in the diagram, can't influence its function.

Claims

1. A double-link keyboard key, comprising a keycap, an outer link, an inner link, a base plate, a circuit board, and an elastic body, characterized in that;

A pair of shaft seats and a pair of sliding grooves are respectively provided on the bottom edge surface of the keycap near the outer side, and an oblique guiding surface is respectively provided at the opening ends of the two shaft seats, and an oblique guiding surface is respectively provided at the opening ends of the two sliding grooves. There are also oblique guide surfaces respectively, a stopper is respectively provided at the inner side ends of the two slide grooves, and a circular groove is provided in the middle of the bottom edge of the keycap;

The outer connecting rod is provided with a shaft embedded in the shaft seat of the keycap at one end, and a central shaft seat is provided at the middle part, and oblique guiding surfaces are respectively provided at the opening ends of the shaft seat, and the other The side end is provided with a sliding shaft;

One end of the inner connecting rod is provided with a shaft, the middle part is provided with a central shaft embedded in the central shaft seat of the outer connecting rod, and the other end is provided with a sliding shaft, and the shaft wall of the sliding shaft is provided with an oblique Guide bevel, the sliding shaft is embedded in the sliding groove of the keycap;

The base plate is respectively provided with a pair of shaft seats and a pair of chute, the open ends of the two shaft seats are respectively provided with oblique guide surfaces, and the open ends of the two chute are also respectively provided with oblique guide surfaces, the inner The shaft of the connecting rod is embedded in the shaft seat of the base plate, and the sliding shaft of the outer connecting rod is embedded in the chute of the base plate, so that the two staggered inner connecting rods and outer connecting rods are combined with each other;

The elastic body has a round fixed end on the top and is embedded in the round groove of the key cap. The lower half is an elastic end with elasticity, and the bottom edge touches the electrical contact of the circuit board to form a key switch of the keyboard.

2. The double-link keyboard key according to claim 1, wherein the outer link and the inner link are sealed frame-shaped structures.

3. The double-link keyboard key according to claim 1, wherein the outer link and the inner link are U-shaped frame structures.