CN115020143A - Key input device - Google Patents

Abstract

The present invention realizes a key input device capable of holding a key in a pressed position with a simple structure that does not use electricity. The keyboard (1) is provided with a plurality of key switches (10) on the main body (2). The key switch (10) is provided with: a casing (11) fixed to a main body (2) of a keyboard (1); and a movable relative to the casing (11) and moved to a pressed position by a pressing operation A member (12); an elastic member (13) that pushes back the movable member in a direction opposite to the pressing direction; and a magnetic member (16) that moves integrally with the movable member (12) and has a magnetic body. A magnet member (19) having a permanent magnet is detachably attached to the bottom of the main body (2).

Description

key input device

technical field

The present invention relates to a key input device including a switch device that switches an electrical contact separation state by pressing a movable member.

Background technique

As an input device for electronic equipment such as a computer, a keyboard, which is a key input device in which a plurality of key switches (hereinafter, also referred to as keys) are arranged in a row, has become widespread. And, recently, keyboards are also used in computer games called e-sports.

However, among such keyboards, there are keyboards having an input signal nullification function. During the game, by using this function to invalidate the input signal of the button unnecessary for playing the game, it is possible to prevent the input signal of the unnecessary button from being output during the game playing.

In addition, Patent Document 1 describes a technique of using an electromagnet to attract and hold a key at a pressed position where a pressing operation cannot be performed.

Patent Document 1: Specification of Chinese Patent No. 103377842

By using the input signal nullification function, it is possible to prevent the output of input signals of buttons unnecessary for playing the game, but to enable the pressing operation of the buttons. Therefore, when unnecessary keys are erroneously operated, unnecessary key operation time occurs during game operation. Depending on the game, the game operation delay caused by the unnecessary key operation time may affect the outcome.

On the other hand, according to the technique of Patent Document 1, it is possible to prevent erroneous operation of unnecessary keys, and to prevent unnecessary key operation time from occurring during game operation. However, since an electromagnet is used to attract and hold the key at the pressed position, components including a coil, an iron core, and the like, and a control unit for controlling the current flowing to the coil are required, which increases the cost and increases the size of the apparatus. In addition, since electricity is used, power consumption also increases.

SUMMARY OF THE INVENTION

An object of one aspect of the present invention is to realize a key input device capable of holding a key in a depressed position with a simple structure that does not use electricity.

In order to solve the above-mentioned problems, the present invention adopts the following structures.

That is, a key input device according to an aspect of the present invention is a key input device provided with a plurality of switch devices, wherein the switch devices include: a fixing member fixed to the main body of the key input device; and a movable member, It is provided to be able to move relative to the fixed member and to move to the pressed position by a pressing operation; an elastic member that pushes back the movable member in a direction opposite to the pressing direction; and a magnetic member that has magnetic properties body and move integrally with the movable member, and a magnet member having a permanent magnet and attracting the magnetic member is detachably mounted on the bottom of the body, and the magnet member attracts the magnetic member with a higher force than the The force with which the elastic member pushes back the movable member in the opposite direction is large.

According to the said structure, the magnet member which has a permanent magnet provided in the bottom part of a main body attracts the magnetic member which has a magnetic body provided in the movable member of a switch device. Thereby, the movable member, that is, the switch device can be held in the depressed position. Furthermore, since the magnet member is detachable, it is possible to use it as a normal key input device by preliminarily detaching the switch device when it is not necessary to hold the switch device in the depressed position. Thereby, it is possible to realize a key input device capable of holding the key in the depressed position with a simple structure that does not use electricity.

In the key input device according to the above aspect, the fixed member may have a hole through which the front end portion of the magnetic member in the pressing direction is inserted, and the movable member may be configured in the position where the movable member is located at the pressing position. In the state, the front end portion of the magnetic member in the pressing direction is closer to the bottom of the main body than the fixing member. Thereby, the magnetic member of the switch device can be brought closer to the bottom of the main body of the key input device provided with the magnet member in the pressed state, and the attraction (adsorption) effect by magnetic force can be improved.

The key input device according to the above aspect may be configured to include a wiring board disposed below the fixing member, the wiring board having a hole through which a front end portion of the magnetic member in the pressing direction is inserted. In a state where the movable member is located at the pressed position, the front end portion of the magnetic member in the pressing direction is closer to the bottom of the main body than the wiring board. Thereby, the magnetic member of the switch device can be brought closer to the bottom of the main body of the key input device provided with the magnet member in the pressed state, and the attraction (adsorption) effect by magnetic force can be improved.

In the key input device according to the above aspect, the magnet member may include a holder that holds a permanent magnet and is detachable from the main body. By using the bracket, the magnet member can be easily attached to the bottom of the main body.

In the key input device according to the above aspect, the magnet member may be fitted into a hole provided in the bottom of the main body from the rear side of the main body, and the holder may be configured to be rotatable with respect to the hole. , the outer peripheral part of the bracket and the inner peripheral part of the hole are provided with a locking shape, the locking shape is engaged with each other by rotating the bracket in the installation direction, so that the bracket is locked in the Described hole. By setting it as such a structure, the holder which can be attached and detached with respect to a hole part can be comprised easily.

In the key input device according to the above aspect, each of the locking shapes formed on the outer peripheral portion of the holder and the inner peripheral portion of the hole portion may include a locking surface, and the locking surface may be configured to The radial direction of the stents is defined as the in-plane direction, and the stents are in contact with each other to be locked with each other, and each of the locking surfaces has recesses or protrusions that extend in the radial direction of the stents and are fitted to each other. Thereby, in the state which attached the magnet member to the bottom part of a main body, it can lock easily so that it may not fall off.

In the key input device according to the above aspect, the magnet member may be fitted into a hole provided in the bottom of the main body from the rear side of the main body, and the holder may be configured to be rotatable with respect to the hole. , a detachable shape is provided on the outer circumference of the bracket and the inner circumference of the hole, and the detachable shape is engaged with each other by rotating the bracket in the detachment direction, so that the magnet member is moved toward the hole. the entrance side of the move. Thereby, the magnet member can be easily detached from the bottom of the main body against the attracting force with the magnetic member.

In the key input device according to the above aspect, the main body may have a hole on the back surface of the bottom portion to which the magnet member is loosely fitted, the magnet member is loosely fitted in the hole, and the It is held in the hole portion by the attractive force with the magnetic member. Since it is not necessary to provide a locking shape in the hole formed in the bottom portion of the main body, the bottom portion of the main body can be manufactured inexpensively.

According to one aspect of the present invention, it is possible to realize a key input device capable of holding a key in a depressed position with a simple structure that does not use electricity.

Description of drawings

FIG. 1 is a schematic perspective view showing an example of the appearance of the keyboard of the present embodiment.

FIG. 2 is a partial cross-sectional view of the keyboard of the present embodiment.

FIG. 3 is a perspective view showing an example of the appearance of the key switch according to the present embodiment.

FIG. 4 is an exploded perspective view of the key switch of the present embodiment.

FIG. 5 is a perspective view showing the configuration of a pair of movable pieces in the key switch of the present embodiment.

FIG. 6 is a perspective view showing an example of engagement between a movable member and a pair of movable pieces for providing an operating tactile feel in the key switch of the present embodiment.

FIG. 7 is a perspective view showing the back side of the bottom plate of the main body in the keyboard of the present embodiment.

FIG. 8 is an explanatory diagram showing a method of holding the keyboard in the pressed position according to the present embodiment.

FIG. 9 is a diagram showing a configuration of a magnet member attached to the bottom plate of the main body of the keyboard of the present embodiment.

10 is a cross-sectional view of a hole provided in the bottom plate of the main body of the keyboard of the present embodiment.

FIG. 11 is an explanatory diagram showing a method of attaching a magnet member to the bottom plate of the main body of the keyboard of the present embodiment.

12 is an explanatory diagram showing a method of removing the magnet member from the bottom plate of the main body of the keyboard of the present embodiment.

13 is an explanatory diagram illustrating a method of holding a key switch in a depressed position of the keyboard of another embodiment.

FIG. 14 is an explanatory diagram illustrating a method of releasing the hold of the key switch of the keyboard according to another embodiment.

Symbol Description

1, 51: keyboard (key input device); 2: main body; 3, 52: bottom plate (bottom of main body); 6: wiring substrate; 8: permanent magnet; 10: key switch (switch device); 11: housing ( 12: movable member; 12a: pressing piece; 12a1: cam surface; 13: elastic member; 14, 14': movable piece; 14a, 14a': contacts; 14b, 14b': terminals; 14e 14e': Pressed piece; 15: Guide cover (fixed part); 16: Magnetic part; 19, 53: Magnet part (magnet part); 20: Bracket; 21: Bracket side locking shape; 21a: Bracket side clip Fixed surface; 21b: upper surface of bracket side locking shape; 22: bracket side detachable shape; 26: threaded hole; 30, 54: hole portion; 31: main body side locking shape; 31a: main body side locking surface; 32 : Detachable shape on the main body side; 33: Step portion; 40: Recessed portion; 41: Projected portion; 60: Clamp

Detailed ways

Hereinafter, an aspect of the present embodiment (hereinafter, also referred to as "the present embodiment") of one aspect of the present disclosure will be described based on the drawings. In the present embodiment, as one form of the key input device of the present disclosure, for example, a keyboard used for inputting characters, numbers, and symbols to an electronic device such as a computer, inputting data such as various commands, and game operations are exemplified.

§1 Application example

First, an example of a case where the keyboard 1 as the key input device and the key switch 10 as the switch device are applied will be described with reference to FIGS. 1 , 8 , and 9 . As shown in FIG. 1 , a keyboard 1 has a plurality of key switches 10 arranged in a row as an input device for electronic equipment such as a computer. The keyboard 1 can be generally used as an input device for electronic equipment such as a computer, and can also be set to a standard suitable for a computer game called e-sports.

That is, as shown in the diagram of reference numeral 802 in FIG. 8 , the movable member 12 of the key switch 10 is provided with the magnetic member 16 having a magnetic body. On the other hand, a magnet member (magnet member) 19 having a permanent magnet is detachably attached to the bottom plate 3 of the main body 2 of the keyboard 1 .

With such a configuration, by pressing the key switch 10 in a state where the magnet member 19 is attached to the base plate 3 , the key switch 10 can be moved by the attractive force generated by the magnetic force of the magnetic member 16 and the magnet member 19 . Hold in the pressed position. As a result, by attaching the magnet member 19 to the base plate 3 and holding the key switch 10 in the depressed position, it is possible to prevent the key switch 10 that is not used during game operation or the key switch 10 that may be misoperated during the game operation. wrong operation. In addition, since the magnet member 19 is detachably attached to the base plate 3, it can also be used under normal conditions by detaching the magnet member 19.

In addition, as shown in FIG. 9 , the magnet member 19 attached to the base plate 3 can also be configured to include the bracket 20 that can be attached to and detached from the base plate 3 . In this case, the magnet member 19 can be easily attached and detached by using a general-purpose jig such as a screwdriver without using a special jig.

§2 Composition example

[Embodiment 1]

(1. Outline of keyboard 1)

First, a schematic configuration of a keyboard to which the key input device of the present embodiment is applied will be described with reference to FIGS. 1 and 2 . FIG. 1 is a schematic perspective view showing an example of the appearance of the keyboard 1 of the present embodiment. FIG. 2 is a partial cross-sectional view of the keyboard 1 of the present embodiment. The figure shown by the reference numeral 201 in FIG. 2 is a cross-sectional view of a certain part of the key switch 10 taken along the line L1 extending in the front-rear direction shown in FIG. 1 , and the figure shown by the reference numeral 202 in FIG. A cross-sectional view taken along line L2 extending laterally.

As shown in FIG. 1 , the keyboard 1 includes a main body 2 on which a plurality of key switches 10 as the switch device of the present embodiment are arranged in parallel. Functions are assigned to each key switch 10, and are classified into character keys, numeric keys, other function keys, and the like according to the functions. In addition, the keyboard 1 illustrated in FIG. 1 has key switches 10 of the same shape arranged side by side for the purpose of simplifying the structure and enabling easy recognition of technical contents, but the mounting is not limited to such a shape.

As shown in FIG. 2 , the key switch 10 includes a case 11 , a guide cover 15 , a movable member 12 , an elastic member 13 , and a magnetic member 16 . The housing 11 and the guide cover 15 constitute a fixing member. The movable member 12 is movable relative to the casing 11 and the guide cover 15, and is moved to the pressed position by a pressing operation. When the pressure generated by the pressing operation is released, the movable member 12 is returned to the original position by the restoring force of the elastic member 13 . The magnetic member 16 moves integrally with the movable member 12 and has a magnetic body attracted by the permanent magnet.

The main body 2 of the keyboard 1 includes: a base plate 3 arranged on the bottom surface; a cover 4 covering the upper surface side where the key switches 10 are provided; a metal plate 5 arranged between the base plate 3 and the cover 4; and a wiring board 6 , which is arranged between the metal plate 5 and the bottom plate 3 . The metal plate 5 has an opening 5a to which the key switch 10 is attached, and the key switch 10 is attached to the opening 5a. A hole 6 b through which the lower end portion of the magnetic member 16 is inserted is formed in the wiring board 6 . A magnet member 19 is detachably attached to the base plate 3 in accordance with the attachment position of the key switch 10 . The magnet part 19 has permanent magnets.

The magnetic member 16 included in the key switch 10 and the magnet member 19 disposed on the main body 2 side constitute a holding mechanism for holding the movable member 12 of the key switch 10 in the depressed position by magnetic force. In the holding mechanism for holding the movable member 12 in the depressed position using the attractive force between the magnetic body and the permanent magnet, as long as the key switch 10 includes either the magnetic body or the permanent magnet, the main body 2 of the keyboard 1 includes the magnetic body or the permanent magnet. Either of the permanent magnets may be used. Hereinafter, it is assumed that the keyboard 1 is arranged on a horizontal plane, and the moving direction of the movable member 12 is described as the vertical direction.

(2. Structure of the key switch 10)

Next, the schematic structure of the key switch 10 of this embodiment is demonstrated using FIG. 3, FIG. 4, and the above-mentioned FIG. 2 as appropriate. FIG. 3 is a perspective view showing an example of the appearance of the key switch 10 according to the present embodiment. FIG. 4 is an exploded perspective view of the key switch 10 of the present embodiment. As shown in FIGS. 3 and 4 , the key switch 10 includes a housing 11 , a movable member 12 , an elastic member 13 , a pair of movable pieces 14 , 14 ′, a guide cover 15 , and a magnetic member 16 .

The case 11 is a box-shaped member, and is also a member for fixing the key switch 10 to the main body 2 as described above. The case 11 has a bead-shaped portion 11a on the outer peripheral portion of the upper portion that is engaged with the upper surface of the metal plate 5 (see FIG. 2 ). The case 11 has, on the lower surface, a boss 11b that fits into a hole 6a (see FIG. 2 ) formed in the wiring board 6 . Further, the housing 11 has a base 11d on which the elastic member 13 is mounted in the center portion of the inner bottom surface. A hole 11c through which the lower end portion of the magnetic member 16 is inserted is formed in the base 11d. In addition to this, although not shown, the lower surface of the case 11 is provided with holes and the like through which the terminals 14b and 14b' formed on the pair of movable pieces 14 and 14' are inserted.

The guide cover 15 is fitted to the upper part of the case 11 . As shown in the diagram of the reference numeral 202 in FIG. 2 , the guide cover 15 has tongue pieces 15a extending downward on both sides in the lateral direction. The lower end portion of the tongue piece 15 a is formed with a protruding portion 15 b that protrudes outward and is engaged with the lower surface of the metal plate 5 .

The movable member 12 is movable relative to the casing 11 and the guide cover 15, and is moved to the pressed position by the pressing operation as described above. In the present embodiment, the movable member 12 is attached to the upper portion of the guide cover 15 so as to be movable in the vertical direction (the pressing direction and its opposite direction) with respect to the casing 11 and the guide cover 15 . On the movable member 12, a key top member 17 (refer to FIG. 3 ) that receives a pressing operation is detachably attached. Further, the movable member 12 has a pressing piece 12a that slides along the pressed pieces 14e and 14e' provided on the movable pieces 14 and 14' in accordance with the movement to the pressed position at the corners of the inner peripheral surface (see FIG. 5 ). ), the details of which are described below. Two pressing pieces 12a (see FIG. 5 ) are formed corresponding to the pieces to be pressed 14e and 14e'.

The magnetic member 16 is a rod-shaped member having a magnetic body such as iron or a magnetic body itself. The upper end of the magnetic member 16 is attached to the lower surface (the surface facing the pressing direction) of the movable member 12 , and moves integrally with the movable member 12 . In addition, as the magnetic member 16, it is not necessary for the entire rod-shaped member to be a magnetic body, and at least the lower end portion may be a magnetic body.

The elastic member 13 is a member that pushes back the movable member 12 in the direction opposite to the pressing direction, that is, the return direction (upward direction), and is, for example, a coil spring. The elastic member 13 is arranged in the center of the inside of the casing 11 , the lower end side is attached to the base 11 d of the casing 11 , and the upper end side is fitted into the groove 12 b formed in the lower surface of the movable member 12 . The force with which the elastic member 13 pushes back the movable member 12 in the opposite direction is set to be weaker than the force with which the magnet member 19 attracts the magnetic member 16 . That is, the force with which the magnet member 19 attracts the magnetic member 16 is larger than the force with which the elastic member 13 pushes back the movable member 12 in the opposite direction.

The pair of movable pieces 14 and 14' are sensor members for detecting the pressing operation of the key switch 10, and are arranged along the inner peripheral wall of the casing 11. The movable pieces 14, 14' have contacts 14a, 14a', and the contacts 14a, 14a' are electrically connected with the push-down operation of the movable member 12. The movable pieces 14 and 14' have terminals 14b and 14b', and are connected to the wiring board 6 of the main body 2 via the terminals 14b and 14b'. In addition, the movable pieces 14 and 14' are also members that impart an operational tactile sensation to the pressing operation of the movable member 12.

(3. Detection of pressing operation and giving of operation tactile sensation)

Here, the structure of the pair of movable pieces 14 and 14', the detection of the pressing operation of the key switch 10, and the structure of providing the operation tactile sensation will be described with reference to FIGS. 5 and 6 . Fig. 5 is a perspective view showing the configuration of a pair of movable pieces 14, 14' in the key switch 10 of the present embodiment. Fig. 6 is a perspective view showing an example of engagement between the movable member 12 and the pair of movable pieces 14 and 14' for providing an operational tactile sensation in the key switch 10 of the present embodiment.

As shown in Fig. 5, the movable pieces 14 and 14' are leaf spring members formed by cutting and bending a metal plate, and have a "U" shape in plan view. The movable pieces 14, 14' have first bent pieces 14c, 14c' and second bent pieces 14d, 14d' formed by bending. Contacts 14a, 14a' are provided on the first bent pieces 14c, 14c' and the second bent pieces 14d, 14d', respectively.

In the first bent pieces 14c, 14c', the contacts 14a, 14a' are provided on the outer surfaces, and in the second bent pieces 14d, 14d', the contacts 14a, 14a' are provided on the inner surfaces. The movable pieces 14 and 14' are arranged such that the contact 14a of the first bent piece 14c of the movable piece 14 is opposite to the contact 14a' of the second bent piece 14c' of the movable piece 14', and the movable piece The contact point 14a ′ of the first bent piece 14c ′ of the movable piece 14 is opposite to the contact point 14a of the second bent piece 14c of the movable piece 14 . That is, two sets of contacts 14a, 14a' are provided in the movable pieces 14, 14'.

The movable pieces 14, 14' have pressed pieces 14e, 14e' at the front ends of the first bent pieces 14c, 14c'. The pressed pieces 14e and 14e' are formed by bending in a cut-and-raised shape. The pressed pieces 14e and 14e' are portions that receive the pressing force by the pressing piece 12a provided in the movable member 12 as the movable member 12 is pressed down. The pressed pieces 14e, 14e' are curved so as to bulge outward, and have convex curved surfaces 14e1, 14e1' in the central portion in the vertical direction. The end portions in the vertical direction of the pressed pieces 14e and 14e' are relief surfaces inclined inward.

As shown in Fig. 6 , the movable member 12 has a pressing piece 12a at a corner of the inner peripheral surface and at a position corresponding to the pressed pieces 14e, 14e' of the movable pieces 14, 14'. Two sets of contact points 14a and 14a' of the movable pieces 14 and 14' are provided corresponding to the pressing piece 12a. The pressing piece 12a is extended in the up-down direction, and protrudes inward. The pressing piece 12a has an inclined shape that goes inward from above to below, and the surface facing inward becomes a cam surface 12a1 that is in contact with the pressed pieces 14e and 14e'.

FIG. 6 shows a free state in which the movable member 12 is not pressed. As shown in FIG. 6 , in the free state, the lower end portion of the cam surface 12a1 of the pressing piece 12a which protrudes most toward the inside is in contact with the convex curved surface 14e1 of the pressed piece 14e. Therefore, the first bent piece 14c is elastically deformed and pressed inward, so that the contact 14a provided in the first bent piece 14c and the contact 14a' provided in the opposite second bent piece 14d' are separated from each other. not in contact.

When the movable member 12 is pushed downward from the free state, the cam surface 12a1 in contact with the convex curved surface 14e1 of the pressed piece 14e moves to the upper end portion where the protruding amount is small. Along with this movement, the first bent piece 14c that has been pressed inward is gradually restored.

In addition, in the process of moving the movable member 12 to the depressed position, the cam surface 12a1 slides with respect to the pressed piece 14e, so that the user who presses the movable member 12 can give an operation tactile feeling.

At any position between the free state and the depressed position of the movable member 12, the first bending piece 14c is completely restored, and the contact 14a (14a') provided on the first bending piece 14c is connected to the opposite second The contacts 14a' of the two bent pieces 14d' are in contact. Thereby, the terminals 14b and 14b' of the movable pieces 14 and 14' are turned on, and it is detected that the push switch 10 is pressed.

(4. Installation of the key switch 10)

Next, the attachment to the main body 2 of the key switch 10 of this embodiment is demonstrated using the above-mentioned FIG. 2. FIG. As shown in FIG. 2 , the key switch 10 is fitted into the opening 5 a formed in the metal plate 5 , and the bead-shaped portion 11 a of the casing 11 is locked to the upper surface of the metal plate 5 . Furthermore, as shown in the drawing of the reference numeral 202 in FIG. 2 , the protrusions 15 a of the guide cover 15 are locked to the lower surface of the metal plate 5 . The bosses 11 b formed on the lower surface of the case 11 are fitted into the holes 6 a formed in the wiring board 6 . The terminals 14b and 14b' of the movable pieces 14 and 14' are connected to the terminals on the wiring board 6 using solder or the like.

(5. Bottom plate 3)

Next, the base plate 3 to which the permanent magnet 8 is detachably attached will be described with reference to FIG. 7 . FIG. 7 is a perspective view showing the rear surface 3a side of the bottom plate 3 of the main body 2 of the keyboard 1 according to the present embodiment in conjunction with a partially enlarged view. As shown in FIG. 7 , on the back surface 3 a of the base plate 3 , a magnet member 19 is attached corresponding to the attachment position of the key switch 10 . A hole 30 for attaching the magnet member 19 is formed on the rear surface 3 a of the base plate 3 , and the magnet member 19 is detachably attached to the hole 30 . In the present embodiment, the magnet member 19 includes a holder 20 , and the holder 20 is detachably attached to the hole portion 30 . The permanent magnet 8 is held by the holder 20 . In the inner peripheral part of the hole part 30, the following main body side locking shape 31 and the main body side detachment shape 32 are formed.

(6. How to hold and release the key switch 10)

Next, a method of holding the key switch 10 in the depressed position and a method of releasing the hold will be described with reference to FIG. 8 . FIG. 8 is an explanatory diagram showing a method of holding the key switch 10 in the pressed position in the keyboard 1 of the present embodiment. As shown by the reference numeral 801 in FIG. 8 , in order to hold the key switch 10 in the depressed position, the magnet member 19 is attached to the hole portion 30 of the rear surface 3 a of the base plate 3 .

Next, as indicated by the reference numeral 802 in FIG. 8 , the key switch 10 is pressed to move to the pressed position. Thereby, the magnetic member 16 of the key switch 10 is attracted (adsorbed) by the magnet member 19, and the key switch 10 is held in the depressed position. Since the force with which the magnet member 19 attracts (adsorbs) the magnetic member 16 is greater than the restoring force of the elastic member 13, the key switch 10 remains in the pressed position even if the pressed finger is released.

In order to release the holding of the key switch 10 that is being held in the depressed position, the magnet member 19 is removed from the hole portion 30 . As a result, the attraction between the magnet member 19 and the magnetic member 16 is eliminated, and the push switch 10 is returned to the free state by the restoring force of the elastic member 13 .

In addition, in the normal use of the keyboard 1, the magnet member 19 is removed from the hole portion 30 in this manner in advance. When the magnet member 19 is detached, the attractive force does not act on the magnetic member 16. Therefore, when the pressing operation is released, the push switch 10 returns to the free state due to the restoring force of the elastic member 13 and can be used normally.

(7. Bracket 20)

Next, the structure of the holder 20 of the magnet member 19 will be described with reference to FIG. 9 . FIG. 9 is a diagram showing the structure of the magnet member 19 attached to the bottom plate 3 of the main body 2 of the keyboard 1 of the present embodiment. The figure of reference numeral 901 is a perspective view of the upper surface side, the figure of reference numeral 902 is a perspective view of the back side, and the figure of reference numeral 903 is a side view viewed from the direction of arrow A in the figure of reference numeral 901 .

As shown in FIG. 9 , the magnet member 19 includes a cylindrical permanent magnet 8 and a holder 20 that holds the permanent magnet 8 . The holder 20 is a low-height cylindrical member. As shown in the drawing of reference numeral 901 , a hole 25 for holding the permanent magnet 8 is formed on the upper surface of the holder 20 , and the permanent magnet 8 is held in the hole 25 . As shown in the drawing of reference numeral 902 , the rear surface 20 a of the holder 20 is provided with a screw hole 26 used for attaching and detaching the holder 20 (magnet member 19 ) to and from the hole portion 30 . The bracket 20 is attached to the hole portion 30 by rotating the bracket 20 clockwise (toward the screw hole 26 ) using the screw hole 26 , and the bracket 20 is rotated counterclockwise (toward the screw hole 26 ) to remove the bracket 20 from the hole 30 . The hole portion 30 removes the bracket 20 .

The outer peripheral surface of the bracket 20 is provided with a bracket-side locking shape 21 and a bracket-side detachable shape 22 . The holder side locking shape 21 is a shape for attaching the holder 20 to the hole portion 30 by engaging with the below-described main body side locking shape 31 (see FIG. 10 ) formed on the inner peripheral portion of the hole portion 30 of the base plate 3 . . The holder-side locking shape 21 protrudes toward the radially outer side of the holder 20 at a substantially central portion in the vertical direction, and is provided to extend in the circumferential direction.

The lower surface 21 a of the bracket side locking shape 21 is received by the upper surface 31 a of the main body side locking shape 31 , so that the bracket 20 is locked in the hole portion 30 . The lower surface 21 a of the holder-side locking shape 21 is the in-plane direction of the radial direction of the holder 20 , and corresponds to the body-side locking surface formed on the inner peripheral portion of the hole portion 30 , that is, the upper portion of the body-side locking shape 31 . The bracket side locking surface to which the surface 31a is locked. When the bracket 20 (magnet member 19 ) is attached, the upper surface 21 b of the bracket-side locking shape 21 abuts on the stepped portion 33 (see FIG. 7 ) formed in the inner peripheral portion of the hole portion 30 . Hereinafter, the lower surface 21a of the holder-side locking shape 21 is referred to as a holder-side locking surface 21a, and the upper surface 31a of the main body-side locking shape 31 is referred to as a main body-side locking surface 31a.

The holder-side detachable shape 22 is engaged with the following main body-side detachable shape 32 (see FIGS. 7 and 10 ) formed in the inner peripheral portion of the hole portion 30 of the bottom plate 3 , and is used to allow the holder 20 (magnet member 19 ) to move toward The shape in which the inlet side of the hole portion 30 moves. The holder-side detachable shape 22 is an inclined surface formed on the upper surface of the protrusion protruding toward the radially outer side of the holder 20 . The inclined surface forming the holder-side detachable shape 22 has an inclination that approaches the back surface 20a of the holder 20 from the upstream side toward the downstream side in the detachment direction. The holder side detachable shape 22 is guided by the main body side detachment shape 32 (refer FIG. 7, FIG. 10) which consists of inclined surfaces, and the holder 20 moves to the entrance side of the hole part 30.

The holder-side locking shape 21 and the holder-side detaching shape 22 are each provided in a plurality in the circumferential direction on the outer peripheral portion of the holder 20 , and in this example, two are each provided.

(8. Hole 30)

Next, the structure of the hole part 30 provided in the back surface 3a of the base plate 3 is demonstrated using the partial enlarged view of FIG. 7 and FIG. 10. FIG. 10 is a cross-sectional view of a hole portion 30 provided in the bottom plate 3 of the main body 2 of the keyboard 1 of the present embodiment. As shown in the partially enlarged view of FIG. 7 , the hole portion 30 has a hole shape matching the outer shape of the holder 20 . A stepped portion 33 shallower than the bottom of the hole portion 30 is formed in the inner peripheral portion of the hole portion 30 . The stepped portion 33 extends from the inner peripheral surface of the hole portion 30 toward the outer side in the radial direction (radial direction of the holder 20 ) and extends in the circumferential direction. The stepped portion 33 is in contact with the upper surface 21 b of the holder-side locking shape 21 inserted into the holder 20 of the hole portion 30 .

The main body side locking shape 31 is formed on the downstream side (forward in the mounting direction) of the stepped portion 33 in the mounting direction. In addition, a main body side detachable shape 32 is formed on the downstream side (forward in the detachment direction) of the step portion 33 in the detachment direction.

The main body side locking shape 31 engages with the holder side locking shape 21 (see FIG. 9 ) formed on the outer peripheral portion of the holder 20 , and is a shape for attaching the holder 20 to the hole portion 30 . The main body side locking shape 31 is configured by forming a space on the downstream side in the mounting direction of the stepped portion 33 so that the rear surface 3a of the bottom plate 3 is left and the inner peripheral surface including the hole portion 30 is cut inward, and the bottom surface 3 of the bottom plate 3 remains. The portion on the back corresponds to the main body side locking shape 31 .

In addition, a fine recessed portion 40 extending in the radial direction of the hole portion 30 (the radial direction of the holder 20 ) is formed on the upper surface of the main body side locking shape 31 , that is, the main body side locking surface 31 a , and the locking shape on the holder side is formed. The lower surface of the stent 21 , that is, the stent-side locking surface 21 a is formed with a fine convex portion 41 extending in the radial direction of the stent 20 (see FIG. 9 ). The bracket 20 is fixed (locked) at the locking position by fitting the recessed portion 40 of the main body side locking shape 31 with the convex portion 41 of the bracket side locking shape 21 . In addition, the convex part 41 may be provided in the main body side locking shape 31 and the concave part 40 may be provided in the holder side locking shape 21 .

The main body-side detachable shape 32 engages with the holder-side detachable shape 22 (see FIG. 9 ) formed on the outer peripheral portion of the holder 20 , and is a shape for moving the holder 20 to the inlet side of the hole portion 30 . The main body side detachable shape 32 is constituted by an inclined surface approaching the back surface 3 a of the bottom plate 3 from the upstream side toward the downstream side in the detachment direction on the downstream side of the step portion 33 in the detachment direction.

(9. How to attach and detach the magnet member 19 )

Next, a method of attaching and detaching the magnet member 19 will be described with reference to FIGS. 11 and 12 . 11 is an explanatory diagram showing a method of attaching the magnet member 19 to the bottom plate 3 of the main body 2 of the keyboard 1 of the present embodiment. FIG. 12 is an explanatory diagram showing a method of removing the magnet member 19 from the bottom plate 3 of the main body 2 of the keyboard 1 of the present embodiment. The attachment and detachment of the magnet member 19 is performed in a state in which the keyboard 1 is turned over and the bottom plate 3 is directed upward. In addition, here, attachment and detachment of the magnet member 19 is demonstrated using the holder 20 as a subject.

When the bracket 20 is attached, as shown in the drawing of reference numeral 1101 in FIG. 11 , the bracket 20 is inserted into the hole portion 30 so that the shape of the bracket 20 is uniform. The drawing of the reference numeral 1104 is a cross-sectional view of the reference numeral 1101 taken along the line A-A (however, the front and back are reversed and shown). In this state, the upper surface 21 b of the holder-side locking shape 21 is in contact with the stepped portion 33 formed on the inner peripheral portion of the hole portion 30 . Next, a jig such as a flat-blade screwdriver or a coin is inserted into the screw hole 26, and the holder 20 is rotated clockwise as the mounting direction.

As a result, as shown in the drawing of reference numeral 1102, the holder side locking shape 21 is inserted below the main body side locking shape 31 (downward during operation), and as shown in the drawing of reference numeral 1105, the holder side locking shape 21 is locked. The holder 20 is attached to the hole portion 30 in the main body side locking shape 31 . Reference numeral 1105 is an A-A line arrow cross-sectional view of the reference numeral 1102 (where the front and back are reversed and shown). In the locked state, the concave portion 40 of the main body side locking shape 31 is fitted with the convex portion 41 of the holder side locking shape 21, and the holder 20 is restricted from rotating in the detachment direction.

Furthermore, as shown in the drawing of reference numeral 1103, the wall portion 21c extending from the bracket side locking surface 21a toward the back surface 20a of the bracket 20 abuts on the insertion side of the main body side locking shape 31, thereby preventing the bracket 20 from being excessively moved in the mounting direction turn.

When the bracket 20 is removed, as shown by reference numerals 1201 to 1203 in FIG. 12 , the holder 20 is rotated in the counterclockwise direction as the removal direction by engaging the jig in the screw hole 26 in the same manner as in the installation. The diagrams denoted by reference numerals 1204 to 1206 are cross-sectional views of arrows taken along the line B-B of the diagrams denoted by reference numerals 1201 to 1203 (however, the front and back are reversed and shown).

Thereby, the holder side detachable shape 22 slides along the main body side detachable shape 32 , and the holder 20 is moved to the entrance side of the hole portion 30 by the inclination, and the holder 20 can be taken out from the hole portion 30 . By moving the holder 20 to the entrance side of the hole portion 30 , the magnetic member 16 and the magnet member 19 are separated, and the attractive force of the permanent magnet 8 is weakened, and the holder 20 can be taken out from the hole portion 30 .

(10. Effect)

According to the above configuration, the magnet member 19 provided with the permanent magnet provided on the bottom plate 3 of the main body 2 attracts the magnetic member 16 provided with the magnetic body provided on the movable member 12 of the push switch 10 . Thereby, the movable member 12, that is, the key switch 10 can be held in the depressed position. Furthermore, since the magnet member 19 is detachable from the base plate 3, it can be used as a normal keyboard by pre-removing the key switch 10 without holding the key switch 10 in the depressed position.

In addition, when the key switch 10 is disposed in the main body 2 of the keyboard 1 , heat is applied in the process of connecting to the wiring board 6 and the like. Therefore, in the structure in which the permanent magnet is provided on the key switch 10 side, there is a possibility that the magnetic force may be lowered due to the influence of heat. On the other hand, since the magnetic body (magnetic member 16 ) having strong heat resistance is provided on the side of the key switch 10 as described above, the force for holding the key switch 10 in the depressed position can be prevented from being reduced by the influence of heat. .

Furthermore, since the hole 11c is provided in the case 11, the magnetic member 16 can be brought closer to the magnet member 19, and the attraction (adsorption) effect by the magnetic force can be improved. In addition, in the above configuration, since the hole 6b is also provided in the wiring board 6 of the main body 2, the magnetic member 16 can be brought closer to the magnet member 19, and the attraction (adsorption) effect by magnetic force can be improved.

The bracket 20 has the bracket-side locking shape 21 on the outer peripheral portion, and by using such a bracket 20 , the bracket 20 (magnet member 19 ) can be easily attached to the bottom plate 3 of the main body 2 . In addition, the bracket-side locking surface 21a locked to the main-body-side locking surface 31a is provided with a convex portion 41 that engages with the concave portion 40 of the main-body-side locking surface 31a, and the above-mentioned member can be used to easily prevent it from falling off. Lock the magnet part 19 .

In addition, the holder 20 is provided with a holder-side detachable shape 21 on the outer peripheral portion. The holder-side detachable shape 21 is engaged with the inner peripheral portion of the hole portion 30 by rotating the holder 20 in the detachment direction, thereby allowing the holder 20 to enter the hole portion. move sideways. Thereby, the magnet member 19 can be easily removed from the hole portion 30 against the attracting force with the magnetic member 16 .

[Embodiment 2]

Hereinafter, other present embodiments of the present invention will be described. In addition, for convenience of description, the same code|symbol is attached|subjected to the member which has the same function as the member demonstrated in the said embodiment, and the description is not repeated.

FIG. 13 is an explanatory diagram showing a method of holding the key switch 10 in the keyboard 51 of the present embodiment in the depressed position. As shown in FIG. 13 , the keyboard 51 is different from the keyboard 1 of the first embodiment in that it includes a bottom plate 52 instead of the bottom plate 3 , and the other structures are the same. In place of the magnet member 19 including the bracket 20 , a magnet member 53 composed of the permanent magnet 8 itself without the bracket 20 is detachably attached to the base plate 52 . The bottom plate 52 is formed with a hole portion 54 in which the magnet member 53 (permanent magnet 8 ) is accommodated and into which the magnet member 53 is loosely fitted.

As shown by the reference numeral 1301 in FIG. 13 , in order to hold the key switch 10 in the pressed position, the key switch 10 is pressed with the magnet member 53 inserted into the hole 54 . As a result, as shown by the reference numeral 1302 in FIG. 13 , the magnetic member 16 of the key switch 10 is attracted by the magnet member 53 , the magnet member 53 is held without falling off, and the key switch 10 (movable member 12 ) is held in the Press the position.

FIG. 14 is an explanatory diagram showing a method of releasing the hold of the key switch 10 in the keyboard 51 of the present embodiment. As indicated by the reference numeral 1401 in FIG. 14 , in order to release the holding of the key switch 10 , the key switch 10 is pulled in the opposite direction to the pressing direction using the key switch removing tool 60 . As a result, as shown by reference numeral 1402 in FIG. 14 , the attracted state between the magnetic member 16 and the magnet member 53 is released, the magnet member 53 falls naturally, and the key switch 10 returns to the free state.

In such a configuration, it is not necessary to provide a locking shape or the like in the hole portion 54 formed in the base plate 52 , so that the base plate 52 can be manufactured inexpensively. Furthermore, since it is not necessary to provide a locking shape to the magnet member 53, the number of parts can be reduced.

§3 Variation

The present embodiment of the present invention has been described above in detail, but the above description is merely an example of the present invention in all respects. Of course, various improvements and modifications can be made without departing from the scope of the present invention. For example, the following changes can be made. In addition, below, the same code|symbol is attached|subjected to the same component as the said embodiment, and description is abbreviate|omitted suitably about the point which is the same as the said embodiment. The following modifications can be appropriately combined.

<3.1>

In the keyboards 1 and 51, all the key switches are used as the configuration of the key switch 10 of the present embodiment. However, it is not limited to this configuration. For example, the key switches used in game operation may be conventionally configured, and the configuration of the key switch 10 may be adopted only for the key switches located around the key switches that may be misoperated. In this case, the magnet members 19 and 53 which are detachably provided on the main body 2 of the keyboards 1 and 51 are provided corresponding to the arrangement positions of the key switches 10 .

<3.2>

The key switch 10 can also be handled in groups with the magnet part 19 with the bracket 20 . That is, the key switch 10 may include the magnet member 19 having the holder 20 or the holder 20 as a constituent element. By providing the holder 20 that can be attached to and detached from the main body 2 in advance, the keyboard 1 capable of holding the key switch 10 in the depressed position with a simple structure that does not use electricity can be realized more simply.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining technical solutions disclosed in different embodiments are also included in the present invention. within the technical scope.

Claims (8)

1. A key input device provided with a plurality of switch devices,

the switch device is provided with:

a fixing member fixed to a main body of the key input device;

a movable member that is provided so as to be movable relative to the fixed member and moves to a pressed position by a pressing operation;

an elastic member that pushes back the movable member in a direction opposite to a pressing direction; and

a magnetic member having a magnetic body and moving integrally with the movable member,

a magnet member having a permanent magnet and attracting the magnetic member is detachably attached to a bottom of the body,

the force with which the magnet member attracts the magnetic member is larger than the force with which the elastic member pushes back the movable member in the opposite direction.

2. The key input apparatus of claim 1,

the fixing member has a hole through which a tip portion of the magnetic member in a pressing direction is inserted,

in a state where the movable member is located at the pressed position, a tip end portion of the magnetic member in a pressing direction is closer to a bottom portion of the main body than the fixed member.

3. Key input device according to claim 1 or 2,

a wiring substrate disposed below the fixing member,

the wiring board has a hole for inserting a tip end portion of the magnetic member in a pressing direction,

in a state where the movable member is located at the pressed position, a tip end portion of the magnetic member in a pressing direction is closer to a bottom portion of the main body than the wiring board.

4. Key input device according to any of claims 1 to 3,

the magnet member includes a holder that holds a permanent magnet and is attachable to and detachable from the main body.

5. A key input device according to claim 4,

the magnet member is attached to a hole provided in a bottom of the main body from a back surface side of the main body,

the holder is rotatable with respect to the hole portion,

an engagement shape that engages with each other by rotating the holder in the mounting direction is provided on the outer peripheral portion of the holder and the inner peripheral portion of the hole, and the holder is engaged with the hole.

6. The key input apparatus of claim 5,

each of the locking shapes formed on the outer peripheral portion of the stent and the inner peripheral portion of the hole portion includes locking surfaces that come into contact with each other to be locked with each other with the radial direction of the stent as the in-plane direction,

each of the locking surfaces has a concave portion or a convex portion extending in a radial direction of the holder and fitted to each other.

7. Key input device according to any of claims 4 to 6,

the magnet member is attached to a hole provided in the bottom of the main body from the back side of the main body,

the holder is rotatable with respect to the hole portion,

the outer peripheral portion of the holder and the inner peripheral portion of the hole portion are provided with a detachable shape that moves the magnet member toward the entrance side of the hole portion by rotating the holder in a detachable direction to engage with each other.

8. Key input device according to any of claims 1 to 3,

the main body has a hole portion in the back of the bottom for loosely fitting the magnet member,

the magnet member is loosely fitted in the hole and held in the hole by an attractive force with the magnetic member.

Images