CN102667997A - Keyboard key structure, bridge structure and assembly method thereof - Google Patents

Abstract

The invention relates to a keyboard key structure, a bridge structure and an assembling method thereof. The conductive film plate comprises a bottom plate, a conductive film plate, an elastic component, a middle plate, a bridge frame and a keycap, wherein the conductive film plate, the elastic component, the middle plate, the bridge frame and the keycap are sequentially arranged on the top surface of the bottom plate from bottom to top; one side end of the outer frame of the bridge and the other side end of the inner frame are respectively provided with a pair of connecting shafts extending inwards, and the connecting shafts are connected with the keycap connecting parts; the keycap connecting part is formed by a framework surrounded by the motion trail of the connecting shaft; the pivot groove arranged in the middle of the outer frame consists of a shaft groove surrounded by a pivot motion track; the middle plate connecting part is fixedly arranged on the middle plate, so that the bridge connected to the middle plate connecting part can only swing along a motion track taking the limiting shaft as a circle center and cannot slide on the middle plate.

Description

Keyboard key structure, bridge structure and assembly method thereof technical field

The invention relates to a keyboard key structure, a bridge structure and an assembly method thereof.

Background technique

CN200910216896.6 discloses "a keyboard key and its assembly method", and its purpose is to provide a keyboard key and its assembly method that do not require high parts precision, simple structure and easy assembly. The technical solution is: the keyboard keys include a base plate, an induction sheet with a silicone colloid, scissor feet and a keycap, and also include a middle plate with a first surface and a second surface, and the middle plate is provided with a penetrating There are through holes on the first surface and the second surface, and the second surface of the middle plate is provided with a groove, the limit post at the lower part of the scissors feet is accommodated in the groove and the upper part of the scissors feet The limiting post passes through the first surface of the middle board through the through hole and is fastened with the keycap, and the sensing piece and the base plate are fixed on the second surface of the middle board. Its disadvantages are: the limit column is fixed on the bottom of the middle plate and can slide, so that the bridge cannot be automatically centered when the keycap is lifted, so that the keycap cannot be installed in a 180-degree rotation, and the direction needs to be recognized manually or by a machine , resulting in low production efficiency.

technical problem

The object of the present invention is to provide a bridge frame limit shaft fixed on the connecting part of the middle plate so that the bridge frame connected to the connecting part of the middle plate can only swing along the movement track with the limit shaft as the center of the circle without being able to move on the middle plate. Sliding up can realize the automatic centering of the overall structure of the keyboard key, so that the keycap can be rotated and installed at 180 degrees without manual or machine identification of the direction, thereby improving the production efficiency of the keyboard key structure, bridge structure and its assembly method. Another object of the present invention is to provide a method for fixing the bridge limit shaft to the second keycap connection part so that the bridge frame connected to the second keycap connection part can only follow the movement track with the limit axis as the center of the circle Swing instead of sliding on the keycap, it can realize the automatic centering of the overall structure of the keyboard key, so that the keycap can be rotated and installed 180 degrees, without manual or machine recognition of the direction, thereby improving the production efficiency of the keyboard key structure, bridge structure and its assembly method.

technical solution

The technical solution of the keyboard key structure of the present invention comprises a bottom plate and a conductive thin film sheet, an elastic member, a bridge frame, a middle plate and a keycap which are sequentially arranged on the bottom plate from bottom to top, wherein the elastic member is placed on the conductive thin film sheet and placed on the bottom plate. Between the bottom plate and the keycap; the bridge frame is composed of an inner frame and an outer frame hinged in the middle, and its special feature is that one side end of the inner frame of the bridge frame and the other side end of the outer frame are respectively provided with a limit shaft; the bridge frame One side end of the outer frame and the other side end of the inner frame are respectively provided with connecting shafts; the bridge limit shaft and the connecting shaft are respectively selected to be connected to the connecting part of the middle plate and the first keycap connecting part, or connected to the connecting part of the first keycap. The second keycap connecting portion and the middle plate connecting portion are connected; the first keycap connecting portion is composed of a frame surrounded by the movement track of the connecting shaft; the pivot slot provided in the middle of the outer frame is moved by the pivot The structure surrounded by the trajectory; the connecting part of the middle plate is fixed on the four corners of the middle plate corresponding to the keycap, so that the bridge connected to the connecting part of the middle plate can only swing along the movement track of the limit axis and cannot Slide on the middle plate.

As preferred:

The hinged mode of described inner frame and outer frame selects the following a kind of structure:

The inner frame and the outer frame are nested and connected through a pair of pivots arranged outside the middle part of the inner frame and a pair of pivot grooves inside the middle part of the outer frame;

The inner frame and the outer frame are nested and connected through a pair of pivots arranged inside the middle part of the outer frame and a pair of pivot grooves outside the middle part of the inner frame.

The arrangement mode of the limit shaft and the connecting shaft of the inner frame and the outer frame is selected from the following structure:

The limit shafts set on one side end of the inner frame of the bridge and the other end of the outer frame respectively are a pair of limit shafts protruding outward. Correspondingly, the one end of the outer frame of the bridge and the other end of the inner frame The connecting shafts respectively provided on one side end are a pair of connecting shafts extending inwardly;

The limit shafts set at one end of the inner frame of the bridge and the other end of the outer frame respectively are a pair of limit shafts extending inward. Correspondingly, one end of the outer frame of the bridge and the other end of the inner frame The connection shafts provided on one side respectively are a pair of connection shafts protruding outward;

The limit shafts set at one end of the inner frame of the bridge and the other end of the outer frame respectively are a pair of limit shafts extending inward. Correspondingly, one end of the outer frame of the bridge and the other end of the inner frame The connecting shafts respectively provided on one side end are a pair of connecting shafts extending inwardly;

The limit shafts set on one side end of the inner frame of the bridge and the other end of the outer frame respectively are a pair of limit shafts protruding outward. Correspondingly, the one end of the outer frame of the bridge and the other end of the inner frame The connection shafts provided on one side respectively are a pair of connection shafts protruding outward;

The connection mode of described middle plate connecting part and bridge frame selects the following a kind of structure for use:

The connecting portion of the middle plate is connected to the limit shaft, and correspondingly, the connecting portion of the first keycap is connected to the connecting shaft.

The connecting part of the middle plate is connected with the connecting shaft, and correspondingly, the connecting part of the second keycap is connected with the limiting shaft.

The arrangement among the middle plate connection part, the first keycap connection part, the second keycap connection part and the bridge frame adopts one of the following structures.

The connecting part of the middle plate is composed of a protruding member and a slot extending from the top to the bottom of the protruding member. Correspondingly, the connecting part of the first keycap is composed of an L-shaped member symmetrically opened at the bottom of the keycap and integrally extended, The L-shaped member is composed of a shaft groove surrounded by the movement track of the connecting shaft;

The connecting part of the middle plate is composed of an L-shaped member symmetrically opened on the middle plate corresponding to the keycap and integrally extended, and the L-shaped member is composed of an axis groove surrounded by the movement track of the connecting shaft. Correspondingly, the second key The cap connection part consists of a raised member, a slot extending from the top to the bottom of the raised member.

The technical solution of the bridge structure of the keyboard keys of the present invention includes a bridge composed of an inner frame and an outer frame hinged in the middle, and its special feature is that one side end of the inner frame of the bridge frame and the other side end of the outer frame are respectively provided with A pair of limit shafts that are connected to the connecting part of the middle plate or the first keycap connecting part and the second keycap connecting part and can only rotate but not slide, one end of the outer frame of the bridge and the other end of the inner frame It is respectively provided with the first keycap connection part, the second keycap connection part or the middle plate connection part and forms a movement track in the shaft groove of the first keycap connection part, the second keycap connection part or the middle plate connection part A pair of connecting shafts; the pivot groove set in the middle of the outer frame is composed of the axis groove surrounded by the pivot movement track.

As preferred:

The hinged mode of described inner frame and outer frame selects the following a kind of structure:

The inner frame and the outer frame are nested and connected through a pair of pivots arranged outside the middle part of the inner frame and a pair of pivot grooves inside the middle part of the outer frame;

The inner frame and the outer frame are nested and connected by a pair of pivot grooves arranged in the middle part of the inner frame penetrating from the outside to the inside and a pair of pivots protruding from the outside to the inside of the middle part of the outer frame.

The arrangement mode of the limit shaft and the connecting shaft of the inner frame and the outer frame is selected from the following structure:

The limit shafts set on one side end of the inner frame of the bridge and the other end of the outer frame respectively are a pair of limit shafts protruding outward. Correspondingly, the one end of the outer frame of the bridge and the other end of the inner frame The connecting shafts respectively provided on one side end are a pair of connecting shafts extending inwardly;

The limit shafts set at one end of the inner frame of the bridge and the other end of the outer frame respectively are a pair of limit shafts extending inward. Correspondingly, one end of the outer frame of the bridge and the other end of the inner frame The connection shafts provided on one side respectively are a pair of connection shafts protruding outward;

The limit shafts set at one end of the inner frame of the bridge and the other end of the outer frame respectively are a pair of limit shafts extending inward. Correspondingly, one end of the outer frame of the bridge and the other end of the inner frame The connecting shafts respectively provided on one side end are a pair of connecting shafts extending inwardly;

The limit shafts set on one side end of the inner frame of the bridge and the other end of the outer frame respectively are a pair of limit shafts protruding outward. Correspondingly, the one end of the outer frame of the bridge and the other end of the inner frame The connecting shafts respectively provided at one end are a pair of connecting shafts protruding outward.

One of the technical solutions of the keyboard key structure assembly method of the present invention is special in that it includes:

Step 1: Assembly between base plate, conductive film and elastic member:

The elastic member is arranged in the center of the conductive film, and then the conductive film is arranged on the bottom plate;

Step 2: Assembly between the middle plate and the conductive film, the bottom plate, and the elastic member:

Connect the middle plate with the bottom plate, and the middle part of the middle plate is provided with perforations for elastic members and bridges;

Step 3: Assembly between the bridge frame and the middle plate and elastic members:

A pair of limit shafts set on one end of the inner frame of the bridge and the other end of the outer frame are embedded in the slot of the connecting part of the middle plate, and the middle part of the bridge is provided with a mounting hole for the elastic member to protrude;

Step 4: Assembly of Bridge and Keycap:

A pair of connecting shafts extending inwardly from one end of the outer frame of the bridge frame and the other side end of the inner frame are connected to the first keycap connecting portion; since the connecting portion of the middle plate is fixed on the middle plate, it is connected to the middle plate The bridge on the connecting part can only swing along the movement track of the limit shaft and cannot slide on the middle plate, and automatically aligns with the center of the whole component of the keyboard key, thereby automatically completing the assembly of the entire keycap.

When the keycap of the button is pressed down with the hand, one side end of the outer frame of the bridge frame and the other side end of the inner frame are respectively provided with a connecting shaft extending inward along the displacement movement track of the connecting shaft provided by the first keycap connecting part. The shaft groove of the stroke makes a relative displacement, and at the same time, the pivot of the inner frame slides correspondingly in the shaft groove of the pivot groove set in the middle of the outer frame along its movement track, and the elastic member that passes through the mounting hole of the bridge frame and the square hole of the middle plate It is also compressed accordingly, and the corresponding signal is transmitted through the conductive film to complete the pressing action of the button; when the keycap of the button is released, one side of the bridge outer frame and the other side of the inner frame are respectively provided with inward edges. The extended connecting shaft resets along the shaft groove of the connecting shaft displacement movement track stroke provided by the first keycap connecting portion, and at the same time, the inner frame pivot moves in the shaft groove of the pivot groove set in the middle of the outer frame along its moving track. Reset, and the elastic member passing through the installation hole of the bridge frame and the square hole of the middle plate also restores to its original shape, completing the release action of the button.

The second technical solution of the keyboard button structure assembly method of the present invention is special in that it includes:

Step 1: Assembly between base plate, conductive film and elastic member:

The elastic member is arranged in the center of the conductive film, and then the conductive film is arranged on the bottom plate;

Step 2: Assembly between the middle plate and the conductive film, the bottom plate, and the elastic member:

Connect the middle plate with the bottom plate, and the middle part of the middle plate is provided with perforations for elastic members and bridges;

Step 3: Assembly between bridge frame, keycap and elastic member:

A pair of limit shafts provided on one end of the inner frame of the bridge and the other end of the outer frame are embedded in the slot of the second keycap connection part, and the middle part of the bridge is provided with a mounting hole for the elastic member to protrude;

Step 4: Assembly of the bridge frame and the middle plate:

A pair of limit shafts extending inwardly from one side end of the bridge outer frame and the other side end of the inner frame are connected to the second keycap connection part; since the second keycap connection part is fixed on the keycap, the connection The bridge on the connecting part of the second keycap can only swing along the movement track of the limit axis and cannot slide on the keycap, and automatically aligns with the center of the overall component of the keyboard key, so that the keycap can be rotated and installed by 180 degrees. No need for human or machine recognition of directions.

Beneficial effect

Compared with the prior art, the advantages of the present invention are: the automatic centering of the overall structure of the keyboard keys can be realized, the keycap can be rotated and installed at 180 degrees, and the keyboard key structure without manual or machine identification, thereby improving production efficiency, bridge structure. It has higher production efficiency than traditional keyboard key structure assembly.

Description of drawings

Fig. 1 is an exploded perspective view of the first structure of the present invention.

FIG. 2 is a schematic structural diagram of the keycap in FIG. 1 .

Fig. 3 is a schematic diagram of the first top view structure of the present invention.

Fig. 4 is a cross-sectional view of Fig. 3 cut along A1-A1.

Fig. 5 is a cross-sectional view of Fig. 3 cut along A2-A2.

Fig. 6 is a cross-sectional view of Fig. 3 cut along A3-A3.

Fig. 7 is an exploded perspective view of the second structure of the present invention.

FIG. 8 is a schematic structural diagram of the keycap in FIG. 7 .

Fig. 9 is a schematic diagram of a second top view structure of the present invention.

Fig. 10 is a cross-sectional view of Fig. 9 taken along A4-A4.

Fig. 11 is a cross-sectional view of Fig. 9 taken along A5-A5.

Fig. 12 is a cross-sectional view of Fig. 9 taken along A6-A6.

Description of main component symbols:

Bottom plate 1 support foot 11 column hole 111 board body 12 conductive film sheet 2 sheet body 21

Perforation 211 Elastic member 3 Middle plate 4 Connecting part 41 Protruding member 411 Slot 412

L-shaped member 413 middle plate shaft groove 414 connecting column 42 square hole 43 bridge frame 5 inner frame 51

Pivot 511 Limiting shaft 512 Connecting shaft 513 Mounting hole 514 Outer frame 52

Pivot slot 521 Limiting shaft 522 Connecting shaft 523 Pivot shaft 524 Keycap 6

First keycap connection part 61 L-shaped member 611 Keycap shaft groove 612 Protruding member 613

The second keycap connecting portion 62 the protruding member 621 the slot 622

BEST MODE FOR CARRYING OUT THE INVENTION

The present invention will be described in further detail below in conjunction with accompanying drawing:

1 to 5 show a first embodiment of the present invention.

Please see attached picture. In this embodiment, the keyboard key structure includes a base plate 1 and a conductive film sheet 2, an elastic member 3, a middle plate 4, a bridge frame 5 and a keycap 6 arranged on the top surface of the base plate 1 in order from bottom to top, wherein , the elastic member 3 is placed on the conductive film sheet 2 and placed between the bottom plate 1 and the keycap 6; A pair of pivot shafts 511 on the outside of the middle part of the inner frame 51 and a pair of pivot grooves 521 on the inside of the middle part of the outer frame 52 are nested and connected. The protruding limit shaft 512 and the limit shaft 522 are connected with the connecting part 41 of the middle plate; The bridge frame 5 on the connecting portion 41 of the middle plate is only limited to swing along the motion track of the limit shaft 512 and the limit shaft 522 and cannot slide on the middle plate 4. The square holes 43 provided between the four connecting portions 41 of the middle plate , and the connecting columns 42 protruding from the other end of the connecting portion 41 of the middle plate respectively. One side end of the bridge outer frame 52 and the other side end of the inner frame 51 are respectively provided with a connecting shaft 513 and a connecting shaft 523 extending inwardly. Connection; the structure of the displacement stroke of the connecting shaft 513 and the connecting shaft 523 provided by the first key cap connecting portion 61 corresponds to the movement track of the connecting shaft 513 and the connecting shaft 523; the first key cap connecting portion 61 is formed by the key cap 6. An L-shaped member 611 extending integrally at the bottom. The L-shaped member 611 is composed of a connecting shaft 513 corresponding to the movement track of the bridge frame 5 and a shaft groove 612 defined by the displacement stroke of the connecting shaft 523. The shaft groove of the pivot groove 521 provided in the middle of the outer frame 52 is corresponding to the motion trajectory of the inner frame pivot 511 in the pivot groove 521 . The bottom plate 1 is composed of a plate body 12 and support feet 11 with post holes 111 protruding from the four corners of the plate body 12 . The conductive film sheet 2 is composed of a sheet body 21, and the four corners of the sheet body 21 corresponding to the support feet 11 of the bottom plate 1 are respectively recessed with perforations 211 that can be sleeved on the support feet 11 of the bottom plate 1.

The bridge structure of the keyboard key comprises a bridge 5 composed of an inner frame 51 and an outer frame 52 hinged in the middle, and a pair of pivots 511 and the outer frame 52 arranged on the outside of the middle part of the inner frame 51 are passed between the inner frame 51 and the outer frame 52 A pair of pivot grooves 521 on the inner side of the middle part are nested and connected. One end of the bridge inner frame 51 and the other end of the outer frame 52 are respectively provided with outward protrusions and connected with the middle plate connecting portion 41 and can only swing But the limit shaft 512 and the limit shaft 522 that cannot slide the movement track, the one side end of the outer frame 52 of the bridge and the other side end of the inner frame 51 are respectively provided with inwardly extending and corresponding to the first keycap connecting portion 61. Connect and form the connecting shaft 513 and the connecting shaft 523 of the movement track in the shaft groove 612 of the first keycap connection part; composition. The inner frame 51 defines a through hole 514 through which the elastic member 3 passes.

Please see attached picture. In this embodiment, the technical solution of the keyboard key structure assembly method includes:

Step 1: Assembly of base plate 1, conductive film sheet 2, and elastic member 3:

The elastic member 3 is arranged in the center of the conductive film 2, and then the perforations 21 of the conductive film 2 are symmetrically arranged at the four corners and respectively set on the corresponding supporting feet 11 of the bottom plate 1;

Step 2: Assembly between the middle plate 4 and the conductive film 2, the bottom plate 1, and the elastic member 3:

The connecting columns 42 protruding from the four corners of the bottom of the middle plate 4 are respectively inserted into the column holes 111 in the center of the support feet 11 of the bottom plate, and the middle part of the middle plate 4 is provided with a square hole 43 for the elastic member 3 to protrude from;

Step 3: Assembly between the bridge frame 5, the middle plate 4, and the elastic member 3:

The limit shaft 512 and the limit shaft 522 that protrude outward respectively from one side end of the inner frame 51 of the bridge frame and the other side end of the outer frame 52 are embedded in the slot 412 of the connecting part of the middle plate. The mounting hole 514 protruding from the elastic member 3;

Step 4: Assembly of bridge frame 5 and keycap 6:

Connect the connecting shaft 513 and the connecting shaft 523 extending inwardly along one end of the bridge outer frame 52 and the other side end of the inner frame 51 to the first keycap connecting portion 61; since the middle plate connecting portion 41 is fixed on the middle plate 4, so that the bridge frame 5 connected to the connecting portion 41 of the middle plate can only swing along the movement trajectory based on the limit shaft 512 and the limit shaft 522 as the center of the circle and cannot slide on the middle plate 4, thereby automatically aligning The center of the overall component of the keyboard key enables the keycap to be installed in a 180-degree rotation without manual or machine identification of the direction.

When the keycap 6 of the keycap is pressed down by hand, the bridge outer frame 52 one side end and the inner frame 51 other side end are respectively provided with an inwardly extending connecting shaft 513 and a connecting shaft 523 extending along the first keycap. The shaft grooves of the connecting shaft 513 and the connecting shaft 523 provided by the connecting portion 61 are displaced relative to each other. At the same time, the pivot shaft 511 of the inner frame moves in the shaft groove of the pivot groove 521 provided in the middle of the outer frame 51 along its moving track. Sliding accordingly, the elastic member 3 pierced through the mounting hole 514 of the bridge frame and the square hole 43 of the middle plate is also compressed, and the corresponding signal is transmitted through the conductive film 2 to complete the pressing action of the keycap; when the keycap is released When the keycap 6 is used, one side end of the bridge outer frame 51 and the other side end of the inner frame 51 are respectively provided with a connecting shaft 513 and a connecting shaft 523 extending inwardly along the connecting shaft 513 provided by the first keycap connecting portion 61, The shaft groove of the displacement motion track stroke of the connecting shaft 523 is reset, and at the same time, the inner frame pivot 511 is reset in the shaft groove of the pivot groove 521 provided in the middle of the outer frame 51 along its motion track, and is passed through the bridge mounting hole 514 The elastic member 3 connected to the square hole 43 of the middle plate also restores to its original shape thereupon, completing the loosening action of the keycap.

Embodiments of the present invention

6 to 9 show a second embodiment of the present invention.

Please see attached picture. In this embodiment, it includes the base plate 1 and the conductive film sheet 2, the elastic member 3, the middle plate 4, the bridge frame 5 and the keycap 6 which are sequentially arranged on the top surface of the base plate 1 from bottom to top, wherein the elastic member 3 is placed On the conductive film sheet 2 and placed between the bottom plate 1 and the keycap 6; the bridge frame 5 is composed of an inner frame 51 and an outer frame 52 hinged in the middle, and the inner frame 1 and the outer frame 52 are arranged on the outside of the middle part of the inner frame 51. A pair of pivot shafts 511 and a pair of pivot grooves 521 nested in the inner side of the outer frame 52 are nested and connected. Position shaft 512, limit shaft 522, the pair of limit shaft 512, limit shaft 522 are connected with the second keycap connecting portion 61; one side end of the outer frame 52 of the bridge and the other side end of the inner frame 51 are respectively set There are a pair of connecting shafts 513 and 523 extending inwardly, and the pair of connecting shafts 513 and 523 are connected to the connecting portion 41 of the middle plate; the second key cap connecting portion 61 is fixed on the bottom of the key cap 6 On the four corners of the end, so that the four limit shafts 512 and 522 connected to the second keycap connecting portion 61 can only swing along the movement tracks of the limit shafts 512 and 522 and cannot move on the keycap 6 Sliding upward; the connecting part 41 of the middle plate is composed of a structure surrounded by the movement tracks of the connecting shaft 513 and the connecting shaft 523; Groove composition. The bottom plate 1 is composed of a plate body 12 and support feet 11 with column holes 111 protruding from the four corners of the plate body 12 . The conductive film sheet 2 is composed of a sheet body 21, and the four corners of the sheet body 21 corresponding to the support feet 11 of the bottom plate 1 are respectively recessed with perforations 211 that can be sleeved on the support feet 11 of the bottom plate 1.

The keycap connecting portion 62 is composed of a protruding member 621 and a slot 622 extending from the top to the bottom of the protruding member 621 .

The middle plate connecting portion 41 is formed by an L-shaped member 413 symmetrically opened on the middle plate 4 corresponding to the keycap 6 and integrally extended, and the L-shaped member 413 is an axial groove surrounded by the movement tracks of the connecting shaft 513 and the connecting shaft 523 414 composition. The square holes 43 opened between the four middle plate L-shaped members 413 and the other ends of the middle plate connecting portion 41 are respectively protrudingly provided with connecting posts 42 .

The bridge frame 5 of the bridge structure of the keyboard key is made of the inner frame 51 and the outer frame 52 hinged at the middle part, and a pair of pivot grooves 515 and the outer frame 515 and the outer frame are passed through the middle part of the inner frame 51 through the inner frame 51 and the outer frame 52. The inner side of the middle part of the frame 52 is nested and connected by a pair of pivots 524 protruding outwards and inwards. Part 62 is connected to form a limit shaft 512 and a limit shaft 522 that are limited to rotation and cannot slide; The connecting shaft 513 and the connecting shaft 523 which are connected with the connecting part 41 of the middle plate and form a movement track in the shaft groove 414 of the connecting part 41 of the middle plate; Corresponds to the motion locus of the outer frame pivot 521 of . The inner frame 51 defines a through hole 514 through which the elastic member 3 passes.

Please see attached picture. In this embodiment, the technical solution of the keyboard key structure assembly method includes:

Step 1: Assembling base plate 1, conductive film sheet 2, and elastic member 3:

The elastic member 3 is arranged in the center of the conductive film sheet 2, and then the conductive film sheet 2 is arranged on the bottom plate 1;

Step 2: Assembly between the middle plate 4 and the conductive film 2, the bottom plate 1, and the elastic member 3:

The middle plate 4 is connected with the bottom plate 1, and the middle part of the middle plate 4 is provided with a square hole 43 for the elastic member 3 and the bridge frame 5 to pass through;

Step 3: Assembly of the bridge frame 5, the keycap 6, and the elastic member 3:

A pair of limit shafts 512 and 522 provided on one side end of the inner frame 51 of the bridge frame and the other side end of the outer frame 53 are embedded in the slot 622 of the second keycap connecting portion 62, and the middle part of the bridge frame 5 is provided with There is a mounting hole 514 for the elastic member 3 to protrude;

Step 4: Assembly of bridge frame 5 and middle plate 4:

One side end of the bridge outer frame 52 and the other side end of the inner frame 51 are respectively inwardly extended to a pair of limit shafts 512 and 522, which are connected to the second key cap connecting portion 62; 62 is fixed on the keycap 6, so that the bridge frame 5 connected to the second keycap connecting portion 62 can only swing along the movement trajectory based on the limit axis 512 and the limit axis 522 as the center of the circle and cannot be on the keycap 6. Sliding, automatically aligns the center of the overall component of the keyboard key, so that the keycap can be installed in a 180-degree rotation without manual or machine recognition of the direction.

When the keycap 6 of the button is pressed down by hand, a pair of limit shafts 512 and a limit shaft 522 extending along the key are respectively provided at the end of one side of the bridge outer frame 52 and the other side end of the inner frame 51. A pair of limit shafts 512 and 522 provided by the cap connecting portion 61 are provided by the axis slots of the displacement movement track strokes to swing and cannot slide on the keycap 6. At the same time, the inner frame pivot 511 moves along the movement track of the outer frame The pivot groove 521 in the middle of 51 slides accordingly, and the elastic member 3 pierced through the mounting hole 514 of the bridge frame and the square hole 43 of the middle plate is also compressed accordingly, and the corresponding signal is transmitted through the conductive film sheet 2, Complete the pressing action of the keycap; when the keycap 6 of the button is released, a pair of connecting shafts 513 and a connecting shaft 523 extending inward are respectively provided at one side end of the bridge outer frame 52 and the other side end of the inner frame 51. The center plate 41 provides a connecting shaft 513, and the shaft groove 414 of the displacement motion track stroke of the connecting shaft 523 resets. Corresponding reset is made inside, and the elastic member 3 pierced through the mounting hole 514 of the bridge frame and the square hole 43 of the middle plate also restores to its original state, completing the release action of the button.

Industrial Applicability

Sequence Listing Free Content

Claims (10)

1. A kind of keyboard press button structure, including bottom plate and the conductive film sheet, elastic component, crane span structure, middle plate and the keycap that are from bottom to top sequentially located at plate top surface, wherein, elastic component is placed in conductive film sheet and is placed between bottom plate and keycap；Inner frame that crane span structure is hinged by middle part, outer framework are constituted, it is characterised in that：The side of crane span structure inner frame one is respectively equipped with limit shaft with another side of outer framework；The side of crane span structure outer framework one is respectively equipped with connecting shaft with another side of inner frame；The crane span structure limit shaft, connecting shaft difference are alternatively：It is connected with middle plate connecting portion, the first keycap connecting portion, or, it is connected with the second keycap connecting portion, middle plate connecting portion；The framework that the first keycap connecting portion is surrounded by the movement locus of connecting shaft is constituted；The framework that pivot channel set by the middle part of the outer framework is surrounded by pivotable movement track is constituted；The middle plate connecting portion is fixedly arranged on middle plate corner end corresponding with keycap so that the crane span structure being connected on middle plate connecting portion can only swing along limit shaft movement locus and can not be slided on middle plate.
2. Keyboard press button structure according to claim 1, it is characterised in that：The articulated manner of the inner frame and outer framework selects a kind of following structure:

   Pass through a pair of pivot and a pair of pivot groove nested encryptions of outer framework inside middle portion on the outside of inner frame middle part between inner frame and outer framework；

   Pass through a pair of pivot groove nested encryptions on the outside of a pair of pivot of outer framework inside middle portion and inner frame middle part between inner frame and outer framework.
3. Keyboard press button structure according to claim 1, it is characterised in that：The limit shaft of the inner frame and outer framework and the configuration mode of connecting shaft select a kind of following structure:

   Set limit shaft is a pair of the limit shafts protruded outward respectively for the side of crane span structure inner frame one and another side of outer framework, accordingly, set connecting shaft is inside along a pair of the connecting shafts stretched respectively for the side of crane span structure outer framework one and another side of inner frame；

   Set limit shaft is inside along a pair of the limit shafts stretched respectively for the side of crane span structure inner frame one and another side of outer framework, accordingly, set connecting shaft is a pair of the connecting shafts protruded outward respectively for the side of crane span structure outer framework one and another side of inner frame；

   Set limit shaft is inside along a pair of the limit shafts stretched respectively for the side of crane span structure inner frame one and another side of outer framework, accordingly, set connecting shaft is inside along a pair of the connecting shafts stretched respectively for the side of crane span structure outer framework one and another side of inner frame；

   Set limit shaft is a pair of the limit shafts protruded outward respectively for the side of crane span structure inner frame one and another side of outer framework, accordingly, set connecting shaft is a pair of the connecting shafts protruded outward respectively for the side of crane span structure outer framework one and another side of inner frame.
4. The keyboard press button structure according to claim 1 or 3, it is characterised in that：The connected mode of the middle plate connecting portion and crane span structure selects a kind of following structure:

   The middle plate connecting portion is connected with limit shaft, accordingly, and the first keycap connecting portion is connected with connecting shaft；

   The middle plate connecting portion is connected with connecting shaft, accordingly, and the second keycap connecting portion is connected with limit shaft.
5. Keyboard press button structure according to claim 4, it is characterised in that：Configuration mode between the middle plate connecting portion, the first keycap connecting portion, the second keycap connecting portion and crane span structure selects a kind of following structure:

   The fluting that the middle plate connecting portion is extended from raised member, the raised member from top to bottom is constituted, accordingly, the axial trough that the first keycap connecting portion is opened up by keycap bottom symmetrical and integrally the L-type component of extension, the L-type component are surrounded by the movement locus of connecting shaft is constituted；

   The middle plate connecting portion axial trough that symmetrical L-type component, L-type component for opening up and integrally extending is surrounded by connecting shaft movement locus on middle plate corresponding with keycap is constituted, accordingly, the fluting that the second keycap connecting portion is extended from raised member, the raised member from top to bottom is constituted.
6. A kind of portal structure of keyboard, including the crane span structure that inner frame, the outer framework being hinged by middle part are constituted, it is characterised in that：The side of crane span structure inner frame one is respectively equipped with another side of outer framework to be connected and can only rotate without slidable a pair of limit shafts with middle plate connecting portion or the second keycap connecting portion, and the side of crane span structure outer framework one is respectively equipped with a pair of connecting shafts for being connected with the first keycap connecting portion, the second keycap connecting portion or middle plate connecting portion and movement locus being formed in the first keycap connecting portion, the second keycap connecting portion or middle plate connecting portion axial trough with another side of inner frame；The axial trough that set pivot channel is surrounded by pivotable movement track in the middle part of the outer framework is constituted.
7. The portal structure of keyboard according to claim 6, it is characterised in that：The articulated manner of the inner frame and outer framework selects a kind of following structure:

   Pass through a pair of pivot and a pair of pivot groove nested encryptions of outer framework inside middle portion on the outside of inner frame middle part between inner frame and outer framework；

   A pair of pivot nested encryptions between inner frame and outer framework by being protruded out located at a pair of pivot groove and outer framework inside middle portion ecto-entad of ecto-entad insertion in the middle part of inner frame.
8. Keyboard press button structure according to claim 6, it is characterised in that：The limit shaft of the inner frame and outer framework and the configuration mode of connecting shaft select a kind of following structure:

   Set limit shaft is a pair of the limit shafts protruded outward respectively for the side of crane span structure inner frame one and another side of outer framework, accordingly, set connecting shaft is inside along a pair of the connecting shafts stretched respectively for the side of crane span structure outer framework one and another side of inner frame；

   Set limit shaft is inside along a pair of the limit shafts stretched respectively for the side of crane span structure inner frame one and another side of outer framework, accordingly, set connecting shaft is a pair of the connecting shafts protruded outward respectively for the side of crane span structure outer framework one and another side of inner frame；

   Set limit shaft is inside along a pair of the limit shafts stretched respectively for the side of crane span structure inner frame one and another side of outer framework, accordingly, set connecting shaft is inside along a pair of the connecting shafts stretched respectively for the side of crane span structure outer framework one and another side of inner frame；

   Set limit shaft is a pair of the limit shafts protruded outward respectively for the side of crane span structure inner frame one and another side of outer framework, accordingly, set connecting shaft is a pair of the connecting shafts protruded outward respectively for the side of crane span structure outer framework one and another side of inner frame.
9. A kind of assemble method of keyboard press button structure, it is characterised in that including：

   Step 1：Assembling between bottom plate, conductive film sheet, elastic component：

   Elastic component is arranged on to the center of conductive film sheet, then conductive film sheet is arranged on bottom plate；

   Step 2：Assembling between middle plate and conductive film sheet, bottom plate, elastic component：

   Middle plate is connected with bottom plate, the perforation worn for elastic component, crane span structure is provided with the middle part of middle plate；

   Step 3：Assembling between crane span structure and middle plate, elastic component：

   A pair of limit shafts set by the side of crane span structure inner frame one and another side of outer framework are embedded in the fluting of middle plate connecting portion, gantry middle portion is provided with the mounting hole stretched out for elastic component；

   Step 4：The assembling of crane span structure and keycap：

   The side of crane span structure outer framework one and another side of inner frame are connected to the first keycap connecting portion along a pair of the connecting shafts stretched respectively inwards；Because middle plate connecting portion is fixedly arranged on middle plate, so that the crane span structure being connected on middle plate connecting portion can only swing along limit shaft movement locus and can not be slided on middle plate, the center of keyboard integrated member is automatically aligned, so as to automatically complete the assembling of whole keycap.
10. A kind of assemble method of keyboard press button structure, it is characterised in that including：

    Step 1：Assembling between bottom plate, conductive film sheet, elastic component：

    Elastic component is arranged on to the center of conductive film sheet, then conductive film sheet is arranged on bottom plate；

    Step 2：Assembling between middle plate and conductive film sheet, bottom plate, elastic component：

    Middle plate is connected with bottom plate, the perforation worn for elastic component, crane span structure is provided with the middle part of middle plate；

    Step 3：Assembling between crane span structure and keycap, elastic component：

    A pair of limit shafts set by the side of crane span structure inner frame one and another side of outer framework are embedded in the fluting of the second keycap connecting portion, gantry middle portion is provided with the mounting hole stretched out for elastic component；

    Step 4：The assembling of crane span structure and middle plate：

    The side of crane span structure outer framework one and another side of inner frame are connected to the second keycap connecting portion along a pair of the limit shafts stretched respectively inwards；Because keycap connecting portion is installed on keycap, so that the crane span structure being connected on the second keycap connecting portion can only swing along limit shaft movement locus and can not be slided on keycap, the center of keyboard integrated member is automatically aligned, so as to automatically complete the assembling of whole keycap.