CN2350854Y

CN2350854Y - Key

Info

Publication number: CN2350854Y
Application number: CN 98213888
Authority: CN
Inventors: 赵世宏
Original assignee: Acer Computer Co Ltd
Current assignee: BenQ Corp
Priority date: 1998-06-09
Filing date: 1998-06-09
Publication date: 1999-11-24
Anticipated expiration: 2008-06-09

Abstract

The utility model relates to a key which comprise a key cap, a switch element, a rubber membrane, a seat body and a balance bar, wherein, the switch element can be selectively conducted according to the seesaw motion of the key cap. The rubber membrane is arranged on the switch element. The seat body is provided with a couple of clamping hooks, conduits are formed among the clamping hooks and the seat body, and the seat body is separately provided with opening below the conduits of the clamping hooks. The balance bar is provided with a longitudinal shaft which is connected with two lateral sides in order to form an approximate U shape, and the ends of the two lateral sides are separately arranged in the conduits corresponding to the clamping hooks. A flange is upwards and integrally formed and extended at the rubber membrane corresponding to the clamping hooks and the conduits, and the flange contacts the ends of the two lateral sides through the openings in order to reduce noise.

Description

Button

The utility model relates to a kind of button, and particularly a kind of length of keycap is the multiple button of the multiple of width.

Button major part on the present computer or the keyboard of electronic typewriter is the button of square keycap (KeyCap), the button of small part, as blank key (SPACE), enter key (Enter), big keyboard (CAPLOCK), shift key (SHIFT), the length of its keycap is the multiple of width, as two times, three times, this type of button is referred to as the multiple key.

Have a balancing pole in the existing multiple key structure, this is because the multiple key length is longer, as this balancing pole is not set, and the user is if push the non-middle position of keycap, and then with respect to horizontal reference plane, the multiple key can be tilt phenomenon.After settling this balancing pole, even if the user pushes the non-middle position of keycap, the multiple key can not be tilt phenomenon yet.But when assembling keycap, interior arm element, outer arm element, flexible member, balancing pole and substrate, must provide each element some tolerance values, so that each movable element can successfully make up.But also because there is this tolerance in each interelement, and because of balancing pole is that activity is embedded in the grab conduit on the pedestal, and grab this as hard plastic.In pushing in the process of multiple key, both contact with each other balancing pole and grab surface, collide, and produce noise naturally.

The purpose of this utility model is to provide a kind of multiple button, and noise can be reduced significantly.

The purpose of this utility model is achieved in that promptly provides a kind of button, and it comprises: a keycap; One switch element, it can do optionally conducting in response to moving up and down of described keycap; One rubber membrane, it is placed on the described switch element; One pedestal, it has a pair of grab, and described grab and pedestal constitute a conduit, and described pedestal has an opening in the below of described conduit; One balancing pole has a vertical axial region and connects two side direction limits to form about Jiong word profile, and end, two side direction limits places the pairing conduit of described grab respectively; Described rubber membrane is corresponding to described grab and corresponding conduit place integrally formed extension one bead that makes progress, and described bead is passed described opening and contacted with the end, two side direction limits of described balancing pole.

The utility model provides a kind of button in addition, and it comprises: a keycap; One switch element, it can do optionally conducting in response to moving up and down of described keycap; One rubber membrane, it is placed on the described switch element; One pedestal, it has a pair of grab, and described grab and pedestal constitute a conduit; One balancing pole has a vertical axial region and connects two side direction limits to form about Jiong word profile, and end, two side direction limits places the pairing conduit of described grab respectively; Shape of a hoof bump leveller is set in the conduit of described grab correspondence, and it contacts with the end, two side direction limits of balancing pole, and described shape of a hoof bump leveller is the element that separates with rubber membrane.

The utility model also provides a kind of button, and it comprises: a keycap; One switch element, it can do optionally conducting in response to moving up and down of described keycap; One rubber membrane, it is placed on the described switch element; One pedestal, it has a pair of grab, and described grab and pedestal constitute a conduit, and described pedestal has an opening respectively in the below of described conduit; One balancing pole has a vertical axial region and connects two side direction limits to form about Jiong word profile, and end, two side direction limits places the pairing conduit of described grab respectively; Described rubber membrane is corresponding to described grab and corresponding conduit place integrally formed extension one bead that makes progress, and described bead is passed described opening and is subjected to described grab compressing and forms a shape of a hoof bump leveller, and it contacts with the end, two side direction limits of balancing pole.

Advantage of the present utility model is that simple in structure, noise is low.

Below in conjunction with accompanying drawing, embodiment of the present utility model is described, wherein:

Figure 1A is the three-dimensional exploded view of first embodiment of the present utility model;

Figure 1B is the cutaway view of first embodiment of the present utility model;

Fig. 2 A is the enlarged drawing at the grab place of first embodiment of the present utility model;

Fig. 2 B is the profile at the grab place of first embodiment of the present utility model;

Fig. 3 is the profile at the grab place of second embodiment of the present utility model;

Fig. 4 A is the reset condition schematic diagram of the bead of the 3rd embodiment of the present utility model;

Fig. 4 B is the profile at the grab place after the 3rd embodiment combination of the present utility model.

See also Figure 1A, Figure 1B, the utility model multiple button comprises a keycap 11, a pedestal (housing) 13, a flexible member 15, a diaphragm type switch 18, a balancing pole 21 and a substrate 19.As prior art, the utility model is provided with a rubber membrane 17 in thin film switch 18 tops, these rubber membrane 17 corresponding each keycap 11 places then upwards are formed with a rubber cup body (Rubber Dome) as flexible member 15, and when button was pressed, rubber cup body 15 was out of shape downwards; And button is when being released, and then rubber cup body 15 provides an elastic force with keycap 11 jack-up.Form first pair of grab 16 on the pedestal 13, and pedestal has an opening 161 respectively in this below to the grab conduit, and first pair of grab 16 corresponding balancing pole 21 both ends and being provided with, its detailed structure is as described later.

This diaphragm type switch 18 can be done optionally to connect and conduct in response to moving up and down of this keycap 11.This balancing pole 21 has a vertical axial region 211 and connects two side direction limits to form the profile that slightly becomes the Jiong word, insert respectively in the corresponding conduit of first pair of grab 16 of this pedestal its end, two side direction limit 213, and vertical axial region 211 of this balancing pole 21 is embedded in a pair of fitting portion 111 of this keycap.Therefore, as shown in Figure 1, the both sides of corresponding multiple key position respectively are formed with grab 16 on the pedestal 13 of keyboard, and this grab 16 is chimeric for the end 213, two side direction limits of balancing pole 21, prevent that balancing pole 21 and pedestal break away from.When keycap moved up and down, vertical axial region 211 of balancing pole 21 rotated in fitting portion 111, slided in two grabs 16 in 213 of its ends, two side direction limit.

The utility model then in rubber membrane 17 corresponding to grab 16 and corresponding conduit place integrally formed extension one bead 14 that makes progress, shown in Fig. 2 A, this bead can be passed this opening and be contacted with the end, two side direction limits 213 of balancing pole.Because of bead 14 is the rubber material, itself is able to suppress shock, so can reduce the end 213, side direction limit of the balancing pole noise that both clash into each other when sliding in grab 16.

That is to say that the multiple key moves up and down in the process, the surface of pedestal is no longer impacted in the end 213 of balancing pole 21, can reduce the noise of half approximately, shown in Fig. 2 B section.

Second embodiment of the present utility model is with reference to figure 3, before assembling balancing pole 21, can in the grab 16 pairing spaces of multiple key, settle embed just like horseshoe-shaped rubber body 27 after, just balancing pole 21 is inserted, and have a projection 163 in grab 16 tops and can fix this rubber body 27 in grab 16; Section after it is finished as shown in Figure 3.In this embodiment, balancing pole 21 only can contact, impact in keycap moves up and down process with rubber body 27, so can absorb more than half noise.It should be noted that rubber body 27 separates with rubber membrane 17 among this embodiment, non-integrally formed.

The 3rd embodiment of the present utility model is shown in Fig. 4 A, Fig. 4 B, when being shaped this rubber membrane 17, the integrally formed in advance bead 37 in the position of corresponding grab 16 earlier, this bead 37 are easy to this direction bending this bead 37 in having a breach 371 corresponding to grab conduit direction; Have a projection 163 in grab 16 tops and can fix this bead 37 in grab 16.And in assembling pedestal process, make bead 37 attitude and shown in Fig. 4 B after finishing into a bent shape.And the space that the bead 37 of bending state is constituted is passed through for balancing pole 21 ends, shown in Fig. 4 B.Comparison diagram 3, Fig. 4 B as can be known, bead among Fig. 4 B 37 is integrally formed with rubber membrane 17, helps to simplify production stage.

Claims

1. a button is characterized in that it comprises: a keycap; One switch element, it can do optionally conducting in response to moving up and down of described keycap; One rubber membrane, it is placed on the described switch element; One pedestal, it has a pair of grab, and described grab and pedestal constitute a conduit, and described pedestal has an opening in the below of described conduit; One balancing pole has a vertical axial region and connects two side direction limits to form about Jiong word profile, and end, two side direction limits places the pairing conduit of described grab respectively; Described rubber membrane is corresponding to described grab and corresponding conduit place integrally formed extension one bead that makes progress, and described bead is passed described opening and contacted with the end, two side direction limits of described balancing pole.

2. button according to claim 1 is characterized in that, described keycap has a plane, top and a baseplane, and described baseplane is provided with a pair of fitting portion, and vertical axial region of described balancing pole is embedded in the described fitting portion.

3. a button is characterized in that it comprises: a keycap; One switch element, it can do optionally conducting in response to moving up and down of described keycap; One rubber membrane, it is placed on the described switch element; One pedestal, it has a pair of grab, and described grab and pedestal constitute a conduit; One balancing pole has a vertical axial region and connects two side direction limits to form about Jiong word profile, and end, two side direction limits places the pairing conduit of described grab respectively; Shape of a hoof bump leveller is set in the conduit of described grab correspondence, and it contacts with the end, two side direction limits of balancing pole, and described shape of a hoof bump leveller is the element that separates with rubber membrane.

4. a button is characterized in that it comprises: a keycap; One switch element, it can do optionally conducting in response to moving up and down of described keycap; One rubber membrane, it is placed on the described switch element; One pedestal, it has a pair of grab, and described grab and pedestal constitute a conduit, and described pedestal has an opening respectively in the below of described conduit; One balancing pole has a vertical axial region and connects two side direction limits to form about Jiong word profile, and end, two side direction limits places the pairing conduit of described grab respectively; Described rubber membrane is corresponding to described grab and corresponding conduit place integrally formed extension one bead that makes progress, and described bead is passed described opening and is subjected to described grab compressing and forms a shape of a hoof bump leveller, and it contacts with the end, two side direction limits of balancing pole.

5. button according to claim 4 is characterized in that, described bead has a breach to bend to described direction corresponding to the conduit direction of described grab.

6. button according to claim 4 is characterized in that, the top of described grab has a projection to fix described bead in described grab.