CN2343627Y - Key for computer keyboard - Google Patents

Abstract

The utility model relates to a key for a computer keyboard, which comprises a key cap, the bottom surface of which is provided with a support column. The upper end surface of a machine board is provided with a perforating hole, and the lower end surface of the machine board is provided with a containing chamber which is communicated with the perforating hole. A guide plate on a fixing board is arranged at the circumference of a tube body, and the tube body can be just matched with the perforating hole of the machine board; thus, the tube body can be penetrated on the machine board and is arranged in the containing chamber of the machine board. An elastic rubber is arranged just under the tube body of the fixing board. At least two elastic sheets which are formed by integrative shaping are arranged at the contact surface of the guide board of the fixing board and the machine board, and salient points are arranged on the elastic sheets. The utility model has the advantages of decreasing manipulation sound and reducing frictional force. The key for a computer keyboard moves smoothly, and has the advantages of no oblique phenomenon and has smooth manipulation.

Description

The button of computor-keyboard

The utility model relates to a kind of button of computor-keyboard, refers in particular to a kind of operation sound that reduces, and reaches the purpose of noise reduction, and pushes the button of the computor-keyboard of steady and smooth.

Scientific and technological now growing, computer uses socially widely, and general computer mostly utilizes the keyboard input data, thereby keyboard occupies sizable role status in the use of computer, the keyboard classes of commonly using at present is quite a lot of, and it makes the circuit board conducting by pushing keycap.As, a kind of key structure, see also shown in Figure 1, it includes a keycap A substantially, fixed head B, machine plate C, and elasticity rubber school D, this keycap A item face is a dull and stereotyped A1 to its little indent in center, and dull and stereotyped edge is provided with the flange A2 that protrudes out downwards, be provided with its face under the dull and stereotyped A1 in addition and be vertical support column A3, this fixed head B is provided with a body B1, this body B1 periphery is provided with a guide plate B2, this machine plate C upper surface is provided with a circular hole C1, its lower surface is provided with an accommodation chamber C2 who matches with aforementioned guide plate, this accommodation chamber C2 runs through mutually with circular hole C1, as shown in Figure 2, fixed head B can be worn in the accommodation chamber C2 that places machine plate C, and its body B1 is arranged on the circular hole C1, and button A support column A3 can be inserted in the body B1 of fixed head B, make keycap A, fixed head B and machine plate C fix with each other, this elastic caoutchouc D is provided with curved portions D1, and the accommodation chamber C2 that makes machine plate C contains and is placed on the curved portions D1, in this way, this button A and machine plate C have a suitable road from F, and can make support column A3 down promote fixed head B by pushing keycap A, make fixed head B pushing and pressing elastic caoutchouc D, and the strength that record imposes on keycap A is when losing, this keycap A is promptly up bounced up by the purport power of elastic caoutchouc D, and homing is put, and finishes the start row one-tenth of button.

Yet the as above disclosed key structure of commonly using, though it can reach the start of button operation smoothly, but it is in operating process, when the strength that forces in keycap A allayed, the protruding pipe B1 of this fixed head B was promptly up passed by the elastic-restoring force of elastic caoutchouc D, at this moment, fixed head B promptly produces directly collision with machine plate C, and send the bigger sound, and make when operating computer, will influence the quality of working environment; Moreover, this fixed head B and machine plate C to contact supporting surface little, and the face contact of producing big friction force is sentenced in this sliding contact, as shown in Figure 3, when fixed head B and machine plate C relatively move, produce big friction force with producing, and the phenomenon of rocking is arranged, and influence the smooth and easy of button.

Fundamental purpose of the present utility model is to provide a kind of button of computor-keyboard, and it has the effect that reduces operation sound, and is more practical.

Another purpose of the present utility model is to provide a kind of button of computor-keyboard, and it has the effect of the power of reducing friction, and gliding smoothing is smooth and easy, and does not have the phenomenon of deflection, and is smooth and easy during operation.

The purpose of this utility model is achieved in that a kind of button of computor-keyboard, it comprises that the bottom surface is provided with the keycap of a support column: the machine plate is provided with a upper surface and a lower surface, this upper surface is provided with perforation, and its lower surface is provided with an accommodation chamber, and this perforation runs through mutually with accommodation chamber; Fixed head is provided with a body and a guide plate, and this guide plate is located at the body periphery, and this body just can match with the perforation of machine plate, and is arranged on the machine plate, and guide plate is just placed in the accommodation chamber of machine plate; One elastic caoutchouc for general shape elastic body, places under the body of fixed head; Wherein the face that contacts with the machine plate of the guide plate of this fixed head is provided with at least more than one integrally formed shell fragment, and shell fragment is provided with salient point.

The guide plate side of fixed head is provided with convex line.

Guide plate four limits of fixed head all are provided with convex line.

The big I difference of salient point on the shell fragment of fixed head.

The utility model is the guide plate of fixed head and machine plate connect establishes more than one shell fragment on only face, make when the power of pushing keycap allays, after this fixed head is bounced up by the elastic force of elastic caoutchouc, can make the collision of fixed head and machine plate have buffer action by the elastic force of shell fragment, the sound that is sent when reducing operating computer, reach the purpose of noise reduction, and with four limit surface of contact of fixed head and machine plate is contacting of line, reduce the friction force of fixed head and machine plate, and the steady not advantage of deflection of slippage makes operation push-button comparatively smooth and easy steadily.

Below in conjunction with accompanying drawing and specific embodiments the utility model is described in further detail.

Fig. 1 is the exploded view that connects the key structure of commonly using computor-keyboard.

Fig. 2 is a combination dissected figure of commonly using the key structure of computor-keyboard.

Fig. 3 is a backplan of commonly using the key structure of computor-keyboard.

Fig. 4 is a three-dimensional exploded view of the present utility model.

Fig. 5 is an assembled sectional view of the present utility model.

Fig. 6 is the synoptic diagram of the utility model structure.

Fig. 7 is the backplan of the utility model structure.

Shown in Fig. 4,5, the utility model includes a keycap 1, a machine plate 2, fixed head 3 and elastic caoutchouc 4.

This keycap 1 is identical with the keycap of general keyboard, and it is a flat board 10 to its little indent in center along face, so that button operation, and this plate edge is provided with the flange 11 that protrudes out downwards, is provided with its face under the flat board 10 in addition to be vertical support column 12.

One machine plate 2 is provided with a upper surface 20 and a lower surface 21 basically, and this upper surface 20 is provided with perforation 201, and its lower surface 21 is provided with an accommodation chamber 211, and this perforation 201 runs through mutually with accommodation chamber 211.

This fixed head 3 is provided with a body 30 and a guide plate 31, this guide plate 31 is located at body 30 peripheral appropriate positions, integrally formed making, body 30 just can match with the perforation 201 of machine plate 2, be arranged on the machine plate 2, and guide plate 31 is just placed in the accommodation chamber 211 of machine plate 2, the face that this guide plate 31 contacts with machine plate 2 is provided with four integrally formed shell fragments 32, these shell fragment 32 appropriate positions are provided with salient point 321, in addition aforesaid keycap 1 can be total on the body 30 that support column 12 is inserted in fixed head 3, and make keycap 1, machine plate 2 and fixed head 3 are combined, this moment, keycap 1 had a suitable stroke distances with machine plate 2, and place, 31 4 angles of the guide plate of this fixed head 3 is provided with lead angle 33 in addition, and this lead angle 33 is a trapezoidal shape, its two dip plane 331 is provided with a protuberance 332, make this dimpling portion 332 can with the contacts side surfaces of machine plate 2.Therefore when the guide plate 31 of fixed head 3 is mobile in machine plate 2 accommodation chambers 211, this guide plate 31 contacts with machine plate 22 lines with its protuberance 332, as shown in Figure 7, and can reduce the friction force of guide plate 31 and machine plate 2, make the operation of button comparatively smooth and easy, and around the protuberance 332 even branches of the guide plate 31 of fixed head 3 are located at, because of its integrated support slip is covered with around fixed head, and have than big supporting surface scope, when mobile, steadily and not tilt by displacement in the accommodation chamber 211 of machine plate 2 for the guide plate 31 that makes fixed head 3.

This elastic caoutchouc 4 is general shape elastic body, this elastic caoutchouc 4 places under the body 30 of fixed head 3, and when pushing keycap 1, can elastic caoutchouc 4 be compressed by the body 30 of fixed head 3, and when the application of force allays, also can be by the elastic force of elastic caoutchouc 4 with body 30 reinstatements.

As shown in Figure 6, when down the application of force is pushed keycap 1 by power, the body 30 of fixed head 3 can be moved down, and make body 30 down force in elastic caoutchouc 4, and make the circuit board conducting, otherwise, when the application of force allayed, this body 30 can up be bounced up reinstatement by the elastic force of elastic caoutchouc 4, and with keycap 1 reinstatement, at this moment, the salient point 321 of four shell fragments 32 on the fixed head 31 will contact with machine plate 2 earlier, and make because of deciding to have buffer action when plate 3 contacts with machine plate 2 by the elastic force of shell fragment 32, if, when operating computer, can reduce the power of hitting of brushing lightly of fixed head 31 and machine plate 2, hit the sound that sound is produced and can reduce.

Mat tectonic association as above, the button improvement structure of the utility model computor-keyboard, its guide plate 31 with the guide plate 3 of fixed head 3 is established the shell fragment 32 on, the effect of buffering is arranged on when guide plate 31 is contacted with 2 collisions of machine plate, and make because of plate 3 contacts with machine plate 2 with its protuberance 332, evenly be divided into four limits to reduce the area of contact, to reach, and the operation that makes button is more smooth and easy steadily, uses more practical.

Claims (4)

1, a kind of button of computor-keyboard, it comprises that the bottom surface is provided with the keycap of a support column; The machine plate is provided with a upper surface and a lower surface, and this upper surface is provided with perforation, and its lower surface is provided with an accommodation chamber, and this perforation runs through mutually with accommodation chamber; Fixed head is provided with a body and a guide plate, and this guide plate is located at the body periphery, and this body just can match with the perforation of machine plate, and is arranged on the machine plate, and guide plate is just placed in the accommodation chamber of machine plate; One elastic caoutchouc for general shape elastic body, places under the body of fixed head; It is characterized in that: the face that the guide plate of this fixed head contacts with the machine plate is provided with at least more than one integrally formed shell fragment, and shell fragment is provided with salient point.

2, the button of computor-keyboard according to claim 1 is characterized in that: the guide plate side of fixed head is provided with convex line.

3, the button of computor-keyboard according to claim 1 and 2 is characterized in that: guide plate four limits of fixed head all are provided with convex line.

4, the button of computor-keyboard according to claim 3 is characterized in that: the big I difference of the salient point on the shell fragment of fixed head.

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