CN1326171C

CN1326171C - Keyboard devices

Info

Publication number: CN1326171C
Application number: CNB2004100393632A
Authority: CN
Inventors: 佐藤富雄
Original assignee: Mitsumi Electric Co Ltd
Current assignee: Mitsubishi Electric Corp; Mitsumi Electric Co Ltd
Priority date: 2003-03-10
Filing date: 2004-01-30
Publication date: 2007-07-11
Anticipated expiration: 2024-01-30
Also published as: TW200418066A; JP2004273330A; CN1530986A

Abstract

A keyboard apparatus, to enhance the assembling property of a keyboard device by facilitating the assembly of key tops for a reduction in assembly man hours. Link bearings 14, 15 and link bases 16, 17 are formed by a sheet metal working of a metallic plate to form a metallic base frame 11. The outer edge of the link base 17 supporting a sliding Y-link 13 is bent upward to form a stopper part 17a. When an X-link 12 and the Y-link 13 are mounted on the metallic baseframe, the upper end of the Y-link rests on the link base 17 and is set in a predetermined position b by the stopper part 17a. The link bearings 19, 20 of the key top assume a position (a) at the upper end of the X-link and a position b at the upper end of the Y-link, respectively. By pressing the key top against the links, the key top is assembled in position and the need for positioning the Y-link is eliminated to enhance the assembling property.

Description

Key board unit

Technical field

The present invention relates to the key board unit that computer etc. uses, particularly be intended to improve the key board unit of installation capability.

Background technology

The actuating mechanism of key board unit has various ways, require the field of small portable for the portable data assistance of notebook personal computer or PDA etc. etc., the structure that slip ring mechanism supports the key top of passing through that is applicable to this field arranged as the key board unit of thin type structure is known.The structure of this key board unit is, key frame as the support basis at key top is connected by a plurality of slip rings with the key top, hold up the key top by cup-shaped rubber contact or spring, make by slip ring mechanism that the key top is parallel up and down (for example moves, patent documentation 1: TOHKEMY 2003-31067 communique, Fig. 1; Patent documentation 2: TOHKEMY 2002-203449 communique, Fig. 1, Fig. 7).The bearing of the bearing at slip ring and key top and key frame is chimeric, and the hole whole or other bearing except that a group of many groups bearing of key frame is a slotted hole, and sliding in slotted hole by the lower end of slip ring to descend the key top.

When the fitting key top, at first slip ring is installed on the bearing of key frame, open bearing below being provided with below the key top is pressed to slip ring, make slip ring and bearing chimeric, be assembled into the key top.But, in the operation at fitting key top,, exist the bearing at key top and the position of a plurality of slip rings and concern problem inconsistent, that can not install because slip ring can be free to slide for the key frame.

Fig. 5 represents an example of key frame, this key frame 1 is the resin component element of injection moulding, takes by the form of two groups of slip ring bearing 2,3 orthogonal configuration (following two groups of slip ring bearings and slip ring are called X slip ring bearing 2 and Y slip ring bearing 3, X slip ring 4 and Y slip ring 5).The inside of key top (not shown) be provided with chimeric X slip ring 4 and Y slip ring 5 below open X slip ring bearing and Y slip ring bearing, the position of the X slip ring bearing at key top and Y slip ring bearing is in a point and the b point of Fig. 5, makes the X slip ring bearing at X slip ring 4 and Y slip ring 5 and key top and the position relationship consistency of Y slip ring bearing at the fulcrum of Y slip ring 5 under the state that the outer lateral terminal of the slotted hole of the Y of key frame 1 slip ring bearing 3 slides.

Under this state, make the direction at key top consistent with Y slip ring 5 with X slip ring 4, to push from the top towards X slip ring 4 and Y slip ring 5, the X slip ring bearing at X slip ring 4 and key top is chimeric, and the Y slip ring bearing at Y slip ring 5 and key top is chimeric, can the retainingf key top.But therefore,, have the situation of the position that b is ordered in Y slip ring 5 slip charts as shown in Figure 6 because Y slip ring 5 can be free to slide, Y slip ring 5 is not when predetermined b point like this, even the key top is pushed downwards, the Y slip ring bearing and the Y slip ring 5 at key top are also inconsistent, and the result can not the fitting key top.Therefore, in this case, must slide into as shown in Figure 5 b point to Y slip ring 5, exist the time-consuming shortcoming of installation at key top by manual operations.

Summary of the invention

Install easily at the key top, minimizing erector ordinal number proposes for realization makes in the present invention, its objective is provides a kind of key board unit, described key board unit is supported in the key top on the key frame by a plurality of slip rings, the hole of the slip ring bearing by making the key frame is as slotted hole, slip ring is free to slide, can make key top free lifting, it is characterized in that, on strong frame, erect the stop of the position that the slip ring that decision is free to slide is set, make the extreme lower position slip ring contact stop at slip ring, the position consistency of the slip ring bearing hole at the position of the upper end of slip ring and key top forms like that.

In addition, the above-mentioned stop of described key board unit is the inclined plane, swings to the slip ring on the above-mentioned key frame owing to conduct oneself with dignity and descends identical automatically assigned position along the inclined plane of stop.

In addition, on metallic plate with sheet metal processing slip ring bearing and above-mentioned stop, form the metal base frame of key board unit.

Description of drawings

Fig. 1 represents the plane graph of the metal base frame of one embodiment of the present of invention.

Fig. 2 is the plane graph of the state on the metallic base frame that slip ring is installed to.

Fig. 3 is the cutaway view along the A-A line of Fig. 2 of expression key top installation procedure.

Fig. 4 is the cutaway view along the A-A line of Fig. 2 of the key board unit after expression is installed.

Fig. 5 is the plane graph of key frame of installation slip ring of the example of expression prior art.

Fig. 6 is the plane graph of key frame of installation slip ring of the example of expression prior art.

Embodiment

Below, describe one embodiment of the present of invention with reference to the accompanying drawings in detail.Fig. 1 is the plane graph of the metal base frame 11 of key board unit, and Fig. 2 is the plane graph that the state of X slip ring 12 and Y slip ring 13 is installed on metal base frame 11.Metal base frame 11 is to be processed to form the X slip ring bearing 14 and the such substrate of Y slip ring bearing 15 of quadrature with it by sheet metal on metallic plates such as iron plate.X slip ring 12 is installed on X slip ring bearing 14, Y slip ring 13 is installed on Y slip ring bearing 15.

X slip ring bearing 14 and Y slip ring bearing 15 are processed to form by perforate processing and die-cut press-bending, the hole of seeing the X slip ring bearing 14 of left and right directions configuration from the front is a circular hole, the hole of the Y slip ring bearing 15 of fore-and-aft direction configuration is a slotted hole, when the lifting of the key top of chimeric X slip ring 12 and Y slip ring 13, the X slip ring 12 of chimeric X slip ring bearing 14 is that rotate at the center with the circular hole of X slip ring bearing 14, the fulcrum that is entrenched in the Y slip ring 13 on the Y slip ring bearing 15 is along with the lifting at key top moves horizontally in the slotted hole of Y slip ring bearing 15, and almost parallel posture lifting is kept for metal base frame 11 in the key top.

X slip ring 12 shown in Figure 2 and the thin round wire of Y slip ring 13 usefulness bend to a font, compare and can reduce cost with the resin injection shaping slip ring that uses in the prior art.On metal base frame 11, position at the front end middle body of corresponding X slip ring 12 and Y slip ring 13 is provided with X slip ring pedestal 16 and Y slip ring pedestal 17, the X slip ring 12 installed to X slip ring bearing 14 and Y slip ring bearing 15 and the leading section of Y slip ring 13 are placed on respectively on X slip ring pedestal 16 and the Y slip ring pedestal 17, above metal base frame 11, hold up slightly.Why be because when last direction X slip ring 12 and Y slip ring 13 are pushed, can make the chimeric cause of the open bearing in the below at key top and X slip ring 12 and Y slip ring 13 to the key top like this.

Y slip ring pedestal 17 is processed to form by die-cut press-bending, and lateral border portion is crooked upward as the 17a of stop portion, can will place the Y slip ring 13 on the Y slip ring pedestal 17 to be positioned at the precalculated position by the 17a of this stop portion.That is to say, the words of on metal base frame 11, Y slip ring 13 being installed and Y slip ring 13 is kept flat, the upper end of Y slip ring 13 places on the Y slip ring pedestal 17 as shown in Figure 3, the position that b is ordered is stipulated by the 17a of stop portion in the upper end of Y slip ring 13, and the bottom fulcrum of Y slip ring 13 is positioned at the outer lateral terminal of the slotted hole of Y slip ring bearing 15.In addition, because the 17a of stop portion is the inclined plane, when Y slip ring pedestal 17 fell down, the upper end descended along the inclined plane under the state that Y slip ring 13 slides to the right in the drawings, the position that the b that coincide is automatically ordered.

Like this, because when on the metal base frame 11 of supporting key top 18, Y slip ring 13 being installed, Y slip ring 13 is positioned at assigned position, X slip ring 12 and Y slip ring 13 are set the position relation of the X slip ring bearing 19 and the Y slip ring bearing 20 at corresponding keys top 18, therefore unlike the prior art, need when the fitting key top, not adjust the position of slip ring.In addition, the 21st, film-substrate, the 22nd, rubber contact.

When key board unit is installed, at first on metal base frame 11 shown in Figure 1, lay the film-substrate (not shown), on X slip ring bearing 14 and Y slip ring bearing 15, X slip ring 12 and Y slip ring 13 are installed respectively as shown in Figure 2.In addition, place the keyed jointing point and the rubber contact 22 of film-substrate 21 at the middle body that fences up by X slip ring 12 and Y slip ring 13.

On resinous key top 18 shown in Figure 3, below open X slip ring bearing 19 and the Y slip ring bearing 20 chimeric with X slip ring 12 and Y slip ring 13 is set, the direction at key top 18 and X slip ring 12 and Y slip ring 13 are coincide, the words of pushing from last direction X slip ring 12 and Y slip ring 13, X slip ring 12 is chimeric with the X slip ring bearing 19 at key top 18, Y slip ring 13 is chimeric with the Y slip ring bearing 20 at key top 18, retainingf key top 18.After the key top was fixing, releasing was pushed key top 18, because the restoring force of rubber contact, key top 18 vertical lifting become initial condition shown in Figure 4.

In addition, in the above-described embodiments, represented structure for example, but be not limited thereto that the mechanism of two slip rings of configured in parallel also can with two slip rings of X-Y direction combination.In addition, can carry out various modifications in technical scope of the present invention, the present invention comprises the variant that it is changed certainly.

As mentioned above, key board unit of the present invention, when a plurality of slip ring that constitutes key top elevating mechanism being installed to base frame, because relation is set to and the state that is positioned at the position relationship consistency of a plurality of slip ring bearing holes on the key top to the position of the upper end of the chimeric a plurality of slip rings in key top, therefore when the fitting key top, do not need to adjust the operation of slip ring position, can improve installation capability.In addition, in the occasion that the user in use takes off the key top, also can be installed needed man-hour when saving repairing simply.

In addition, on metallic plate, form the metallic base frame of key board unit, can omit the resinous key frame of prior art, can provide price low and slim key board unit by sheet metal processing slip ring bearing and above-mentioned stop.

Claims

1. key board unit, it utilizes a plurality of slip rings that the key top is supported on the key frame, the hole of the slip ring bearing by making the key frame makes slotted hole, slip ring is free to slide, can make key top free lifting, it is characterized in that, on the key frame, erect the stop that the slip ring that is free to slide is positioned is set, thereby form the position consistency of the slip ring bearing hole at the position of the upper end that makes slip ring contact, make slip ring with stop in the extreme lower position of slip ring and key top.

2. key board unit as claimed in claim 1 is characterized in that described stop is the inclined plane, swing on the described key frame slip ring since deadweight descend along the inclined plane of stop and automatically coincide to the precalculated position.

3. key board unit as claimed in claim 1 is characterized in that, by sheet metal processing slip ring bearing and described stop, forms the metal base frame of key board unit on metallic plate.