CN111668041A

CN111668041A - Switching device

Info

Publication number: CN111668041A
Application number: CN201910923816.4A
Authority: CN
Inventors: 铃木正浩
Original assignee: Hirakawa Hewtech Corp
Current assignee: Hirakawa Hewtech Corp
Priority date: 2019-03-07
Filing date: 2019-09-27
Publication date: 2020-09-15
Also published as: JP7023252B2; JP2020145089A

Abstract

The invention provides a switch device capable of preventing misoperation of a switch under the condition of not generating trouble of switching operation of the switch. The switching device 1 includes: a switch (4) in which a 1 st operation part (2) and a 2 nd operation part (3) are arranged vertically, a cover body (6), and an attachment member (5), wherein the cover body (6) is configured to move from an upper position covering the 1 st operation part (2) to a lower position covering the 2 nd operation part (3) by its own weight and to move from a lower position covering the 2 nd operation part (3) to an upper position covering the 1 st operation part (2) by manually resisting its own weight, and the attachment member (5) is configured to normally hold the cover body (6) at the lower position covering the 2 nd operation part (3) by the own weight of the cover body (6).

Description

Switching device

Technical Field

The present invention relates to a switch device, and more particularly, to a switch device having a structure for preventing erroneous operation of a switch.

Background

Conventionally, a so-called seesaw-type two-way switch has been widely used as a switch device for an electric apparatus or an electronic apparatus. However, in the seesaw-type two-way switch, for example, when the switch is turned on, the switch may be turned off by an unexpected impact from the outside, such as an accidental contact with an operator's hand or an external object. In particular, when a power switch of a communication device or a broadcasting device malfunctions during operation, there is a possibility that a communication interruption accident or a broadcasting accident may occur.

In order to prevent such a malfunction of the switch, it has been attempted to provide a malfunction prevention mechanism such as a cover in the switchgear.

As an example of a switch device having a structure for preventing an erroneous operation of a switch, a lock-type switch has been proposed which is configured such that a switch piece is covered with a cover that is slidably movable (see, for example, patent document 1).

In the lock switch described in patent document 1, the switch piece is disposed so as to be alternately extended and retracted outward from an opening formed in a frame of the device or the like in a see-saw manner, and the cover protruding outward from the opening of the frame is disposed so as to be vertically slidable in the opening of the frame along a surface direction of the frame.

When the cover is in a positional relationship to cover the open-side end of the switch piece, the cover presses the front surface of the open-side end of the switch piece to prevent the switch piece from rotating. When the cover member is moved upward by sliding and retreats from the front surface of the opening-side end of the switch piece, the switch piece is configured to be free to rotate.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open No. 2001-84858

Disclosure of Invention

However, in the lock-type switch described in patent document 1, when the open-side end portion of the switch piece is pushed down to be in the open state, the cover is configured to press the front surface of the open-side end portion, and therefore, it is possible to prevent an erroneous operation of the switch piece, but rotation of the switch piece cannot be performed. As a result, when the switch piece is switched between on and off by pushing down the pushed-up closed-side end of the switch piece, it is necessary to perform an operation of retracting the cover from the switch piece and an operation of switching the switch piece between on and off, which are troublesome and make it impossible to perform a quick switching operation.

Accordingly, an object of the present invention is to provide a switch device capable of preventing an erroneous operation of a switch without causing a trouble of switching operation of the switch.

In order to achieve the above object, a switching device according to the present invention includes a switch in which a 1 st operating unit and a 2 nd operating unit are arranged in a vertical direction, a cover configured to move from an upper position covering the 1 st operating unit to a lower position covering the 2 nd operating unit by its own weight and to manually move from the lower position to the upper position against the own weight, and an attachment member configured to normally hold the cover in the lower position by the own weight of the cover.

In the switchgear according to the present invention, the cover has a cutout portion that partially exposes a lower portion of the 2 nd operating portion.

In the switch device according to the present invention, the switch includes the 1 st operating portion and the 2 nd operating portion of a seesaw type.

In the switch device according to the present invention, the switch is turned on or off by the operation of the 1 st operation unit, and is turned off and on by the operation of the 2 nd operation unit.

In the switchgear according to the present invention, the weight is only gravity acting on the cover by the mass of the cover.

In the switch device according to the present invention, the mounting member includes a frame for housing and fixing the switch, and the cover is held at an opening end of the frame.

The invention can prevent the misoperation of the switch under the condition of not making the switching operation of the switch complicated.

Drawings

Fig. 1 is an exploded perspective view schematically showing an example of a switch device according to an embodiment of the present invention.

Fig. 2 is a diagram illustrating an assembled form of the switch device shown in fig. 1, in which (a) is a left side view and (b) is a front view.

Fig. 3 is a main portion cross-sectional view for explaining the dimensional relationship of the switchgear shown in fig. 1.

Fig. 4 is a perspective view of the switching device shown in fig. 1.

Fig. 5 is an explanatory view for explaining the operation of the switch device shown in fig. 1, wherein (a) is a perspective view showing a state when the operator moves the cover body with the fingertip to operate the switch, and (b) is a right side view.

Fig. 6 is an explanatory view for explaining the next operation of fig. 5, in which (a) is a perspective view and (b) is a right side view.

Fig. 7 is a view corresponding to fig. 2(b) for explaining another example of the cover body, in which (a) is a front view showing a 1 st modification, (b) is a front view showing a 2 nd modification, and (c) is a front view showing a 3 rd modification.

Detailed Description

Hereinafter, embodiments of the switchgear according to the present invention will be described with reference to the drawings.

(integral constitution of switch device)

In fig. 1, the switch device 1 includes a switch 4, a mounting member 5, and an erroneous operation prevention cover 6, the switch 4 has the 1 st and 2

nd operating parts

2 and 3 arranged vertically, the mounting member 5 houses and fixes the switch 4, and the erroneous operation prevention cover 6 is movable between an upper position covering the 1 st operating part 2 so as not to be operable and a lower position covering the 2 nd operating part 3 so as not to be operable.

In the present invention, the "vertical direction" (longitudinal direction) refers to the vertical direction when the switch 4 is disposed so as to be orthogonal to the horizontal direction (vertical direction), and includes the "vertical direction". As described later, since the cover 6 applies a force by its own weight, the "vertical direction" is most effective to coincide with the "vertical direction", but the present invention is not limited to the "vertical direction". Even if the switch device 1 is disposed obliquely at a predetermined angle (for example, 30 ° or 45 °) to the vertical direction, the operation and effect of the present invention can be obtained.

The switch 4 is a seesaw type two-way operation switch in which the open-side end portion on one side is pushed down and the closed-side end portion on the other side is pushed up. The operation surfaces of the 1 st and 2

nd operation parts

2 and 3 of the switch 4 on the open-side end and the closed-side end form a switch piece having a concave shape continuous in the vertical direction.

The switch 4 has a switch case 41 formed in a vertically long rectangular shape with an open front. An annular flange 42 is formed around the opening end of the switch case 41. The 1 st and 2

nd operating units

2, 3 arranged vertically are arranged in a rockable manner in front of the annular flange 42. The switch 4 can be used as a power switch of a broadcasting apparatus, an electric apparatus, or the like.

As shown in fig. 1 and 2,

elastic engagement pieces

43, 43 are formed on upper and lower side wall portions of the switch case 41. A switch mechanism that performs an on/off operation by operation of the 1 st and 2

nd operation units

2 and 3 is housed in the switch case 41. A plurality of terminals 44, … …, and 44 electrically connected to the switch mechanism are provided through the bottom of the switch case 41.

The attachment member 5 for housing the fixed switch 4 is a vertically long rectangular box-shaped frame body, and includes: the central portion includes a rectangular frame-shaped plate portion 51 having an opening, an upper frame portion 52 and a lower frame portion 53 bent inward from the upper and lower ends of the plate portion 51, and a left frame portion 54 and a right frame portion 55 bent inward from the left and right ends of the plate portion 51. The material constituting the mounting member 5 may be a metal material or a resin material, and may be used without particular limitation. The mounting member 5 based on the example of the figure may be formed by subjecting a metal plate to press working or the like.

The opening end of the plate portion 51 of the mounting member 5 is sandwiched between the annular flange portion 42 of the switch case 41 and the pair of vertically elastic engagement pieces 43, whereby the switch 4 is housed and fixed in the frame of the mounting member 5. The upper and

lower frame portions

52, 53 of the mounting member 5 protrude from the edges of the left and

right frame portions

54, 55. An upper flange portion 56 bent upward is provided at an edge of the upper frame portion 52. The edge of the lower frame portion 53 is provided with a lower flange portion 57 bent downward.

The end of the upper frame 52 of the mounting member 5 is configured as a stopper for restricting the upward movement of the cover 6. The end of the lower frame portion 53 of the attachment member 5 is configured as a stopper portion that restricts the downward movement of the cover 6. The upper flange portion 56 and the lower flange portion 57 of the mounting member 5 are configured as fixing portions to be screwed and fixed to the rear surface of the decorative plate (exterior panel) 7 by

screws

72 and 72. A window portion 71 facing the 1 st and 2 nd

operating portions

2, 3 and the cover 6 is formed in the decorative plate 7.

(constitution of misoperation prevention Structure)

As shown in fig. 1 and 2, the cover 6, which is held by the mounting member 5 so as to be movable in the vertical direction, prevents an erroneous operation of the switch 4, and includes a rectangular plate-shaped cover portion (front surface portion) 61 and a pair of right and left arm portions (folded portions) 62 and 62 that are bent from both right and left side edges of the cover portion 61 toward the back surface side and extend in the vertical direction. A curved cutout 63 into which a fingertip of an operator or the like is inserted is formed in the lower edge of the cover portion 61.

The cover 6 of the illustrated example is formed by pressing a metal plate. As a material constituting the cover 6, a metal material having excellent sliding properties is preferable. An example of the metal material is a metal plate having a coating film formed by electrodeposition coating on a steel plate or the like.

The cover 6 may be configured to have translucency so that the surface of the switch 4 can be viewed from the outside through the cover 6. For example, a member made of a translucent or transparent material may be used for the whole or a part of the cover 6. For example, the

arm portions

62 and 62 of the cover 6 may be made of a metal material, and the cover 61 may be made of a transparent or translucent resin such as polycarbonate.

Alternatively, a punched metal having a plurality of slits or a plurality of punched holes provided in the cover portion 61 of the cover 6 made of a metal plate may be used. As an example, the cover portion 61 may have a plurality of slits arranged in the longitudinal direction or the transverse direction, or may be arranged in a lattice shape. The cover 61 may have a plurality of punched holes arranged in a shape of a thousand-bird lattice or concentric circles.

When light transmittance is provided to the cover 6, it is preferable to adopt a configuration that does not injure the fingers of the operator while satisfying impact resistance.

The cover portion 61 of the cover 6 is disposed corresponding to the end surfaces of the left and

right frames

54, 55 of the mounting member 5, and the pair of left and right arm portions 62 is disposed corresponding to the outer surfaces of the left and

right frames

54, 55 of the mounting member 5. With the arrangement of the cover 6, the operation surface of the closed end portion, which is the lower-side 2 nd operation portion 3, is covered by the cover 61, and the operation surface of the open end portion, which is the upper-side 1 st operation portion 2, is exposed to the window 71 of the decorative plate 7.

The cover portion 61 of the cover 6 applies a force to a lower position covering the lower 2 nd operating portion 3 by its own weight. The pair of right and left arm portions 62 of the cover 6 has a balance weight function (balance weight) and a guide function for moving the cover 6 in the vertical direction. Thus, the cover 6 can be manually moved from the lower position covering the 2 nd operation part 3 to the upper position covering the 1 st operation part 2, and also moved from the upper position to the lower position by its own weight.

The self-weight of the cover 6 is only the downward gravity acting through the mass of the cover 6. Therefore, the weight of the cover 6 can be adjusted by vertically extending the pair of right and left arm portions 62 with respect to the height dimension of the cover 61. The weight of the cover 6 can be adjusted not only by the vertical extension of the pair of right and left arm portions 62 but also by the thickness and the like. Further, if the switchgear 1 is used while being inclined at a predetermined angle to the vertical direction, the weight of the cover 6 can be adjusted.

Considering the feeling of weight received by the fingertip inserted into the cutout 63 of the cover 61 when the cover 6 is manually pushed up from the lower position to the upper position against its own weight, on the other hand, considering that the cover 6 returns to the original lower position by its own weight when the fingertip is pulled out from the cutout 63, the weight of the cover 6 is preferably about 5 to 10 g. The weight of the cover 6 of the present embodiment is set to about 6g as an example.

As long as the cover 61 can be adjusted in vertical extension, thickness, and the like of the pair of right and left arm portions 62 to have an appropriate weight of about 5 to 10g, the cover 6 may be made of a resin material other than a metal material, and may be used without particular limitation.

(constitution of dimensional relationship of switching device)

As shown in fig. 1 and 2, after the cover 6 is assembled to the end surfaces of the left and

right frame portions

54, 55 of the mounting member 5 in which the switch 4 is housed and fixed, the 1 st and 2

nd operating portions

2, 3 and the cover 6 are made to face the window portion 71 of the decorative plate 7, and the upper and

lower flange portions

56, 57 of the mounting member 5 are fixed to the back surface of the decorative plate 7 by screwing.

As shown in fig. 2, the width W of the window portion 71 of the decorative plate 7 is set to a width into which a fingertip can be inserted, based on the thickness of the fingertip of a normal adult male equal to or smaller than the 1 st joint. The width W of the window 71 is preferably about 18 to 20 mm. The height H of the window 71 is preferably equal to the sum of the length L of the 1 st and 2

nd operating units

2 and 3 and the thickness of the nail near the base of the index finger of a normal adult male.

The cover 6 is pushed up by the fingertip in accordance with the insertion of the fingertip into the notch 63 of the cover 6. The cover 6 has a cutout portion that partially exposes the lower portion of the 2 nd operation portion 3. The cutout 63 is preferably formed with a minimum gap required to allow insertion of a fingertip and to partially expose a lower portion of the lower 2 nd operation portion 3. The minimum clearance required for insertion of the fingertip is formed by the notch 63 of the cover 6 and the window 71 of the decorative plate 7, and is preferably a clearance to the extent that the second operation part 3 cannot be operated without pushing up the cover 6 with the fingertip. For example, the distance D between the notch 3 of the cover 6 and the window 71 of the decorative plate 7 is preferably about 3 to 5mm, and the radius of curvature R of the notch 63 of the cover 6 is preferably about 12 mm.

As shown in fig. 3, the mounting member 5 and the cover 6 are in a state in which minute gaps Gl and G2 are formed between the outer surfaces of the left and

right frame portions

54 and 55 of the mounting member 5 and the inner surfaces of the left and

right arm portions

62 and 62 of the cover 6. Since a steel plate material is used as the material of the cover 6, the total size of the left and right gaps (G1+ G2) is preferably set to about 1mm in consideration of the machining accuracy of the left and right arm portions 62 of the cover 6.

The mounting member 5 and the cover 6 are disposed with a slight gap G3 between the end surfaces of the left and

right frames

54, 55 of the mounting member 5 and the back surface of the cover 61 of the cover 6. The cover 6 and the decorative plate 7 are disposed with a slight gap G4 between the front surface of the cover 61 of the cover 6 and the back surface of the decorative plate 7. The gaps G3 and G4 are not limited to the type of coating applied to the cover body 6, and are within a range of a possible coating film thickness, and the total size of the gaps (G3+ G4) is preferably set to about 0.5mm in consideration of the degree of unintentional shaking.

(operation form of the switching device)

As shown in fig. 4, the cover 6 is movable in the vertical direction, but normally, the cover 6 is located on the lower side by gravity due to its own weight, that is, at a position that normally covers the closed-side end portion (the 2 nd operation portion 3) of the switch 4. Since the open-side end portion (the 1 st operation portion 2) of the switch 4 is not covered with the cover 6, the push-down operation of the open-side end portion can be performed. In the example shown in the figure, the switch 4 is in a state where the open-side end is pushed down and the closed-side end is pushed up.

As shown in fig. 5 and 6, in order to move the cover 6 upward from the lower position covering the closed-side end portion of the switch 4, when the switch 4 is intentionally closed, the cover 6 moves from the closed-side end portion to the open-side end portion (the 1 st operating portion 2) so as to be pushed in the direction opposite to the direction of gravity by the insertion operation of the fingertip F into the notch 63 of the cover 61, and separates from the closed-side end portion of the switch 4.

The fingertip F inserted into the notch 63 of the cover 6 is directly inserted into the notch 63, and the operation is shifted to the operation of pushing the closed end with the fingertip F. When the switch 4 is closed, the finger tips F are pulled out from the notches 63, whereby the cover 6 automatically returns from the upper position covering the open-side end portion to the lower position covering the closed-side end portion by the gravity based on its own weight, and covers the closed-side end portion again.

(effects of the embodiment)

According to the switchgear 1 configured as described above, the following effects are obtained in addition to the above effects.

As the fingertip F is inserted into the notch 63 of the cover 6, the cover 6 is smoothly pushed up in the direction opposite to the gravity direction and moves from the closed-side end of the lower side of the switch piece to the open-side end of the upper side thereof, so that the cover 6 and the closed-side end of the switch piece can be easily separated from each other. As the fingertip F inserted into the cutout 63 of the cover 6 is further inserted into the cutout 63, the operation can be shifted to the operation of pushing the closed-side end of the switch piece. As a result, the switch piece can be freely operated, and the on/off state of the switch piece can be easily switched.

When the switch 4 is closed, the fingertip F is pulled out from the notch 63, whereby the cover 6 is automatically returned from the upper position covering the upper open-side end portion to the lower position covering the lower closed-side end portion by gravity based on its own weight, and the closed-side end portion can be covered again. As a result, it is possible to avoid the power supply from being turned off by careless operation or unintentional operation.

[ modified examples ]

In the illustrated example, the curved notch 63 is shown for inserting a fingertip or the like into the cover 6, but the present invention is not limited thereto. Fig. 7 shows another example of the notch 63 of the cover 6.

Fig. 7(a) shows an example in which the notch 63 of the cover 6 is formed in a rectangular shape. Fig. 7(b) shows an example in which the notch 63 of the cover 6 is formed in a triangular shape. Fig. 7(c) shows an example in which the notch 63 of the cover 6 is formed in a trapezoidal shape. Such a cutout shape allows setting of a minimum gap required for preventing the lower 2 nd operation portion 3, i.e., the lower portion of the closing-side end portion, from being exposed. This can prevent the power supply from being turned off by careless operation or unintentional operation.

[ other modifications ]

In the example shown in the figure, the switch 4 is a component layout in which the power is turned on by pressing the upper 1 st operation unit 2 and turned off by pressing the lower 2 nd operation unit 3, but may be a component layout in which the power is turned off by pressing the upper 1 st operation unit 2 and turned on by pressing the lower 2 nd operation unit 3.

The 1 st operating part 2 and the 2 nd operating part 3 need not be configured in a continuous seesaw-type switch shape, and may be in a button-type (push-type) switch shape in which the 1 st operating part 2 and the 2 nd operating part 3 are separated.

In the illustrated example, the cover 6 is held so as to be movable up and down by the mounting member 5 constituted by a rectangular box-shaped housing that houses the fixed switch 4, but the present invention is not limited to the illustrated example, and the cover 6 may be held so as to be movable up and down by the window portion 71 of the decorative plate 7.

The erroneous operation prevention cover 6 can be used not only for broadcasting equipment or electric equipment but also for any equipment, and can be attached to a wall or a plate surface of a house for the purpose of preventing an inadvertent push-in operation of the lower 2 nd operation part 3 as long as the switch 4 has the upper 1 st operation part 2 and the lower 2 nd operation part 3 adjacently provided in the vertical direction.

The above description also shows that: while the representative embodiments, modifications, and examples of the drawings according to the present invention have been described above, it should be noted that the embodiments, modifications, and examples of the drawings are not intended to limit the invention according to the claims, and may be embodied in various forms without departing from the scope of the invention.

Description of the symbols

1 … switch device, 2 … 1 st operation part, 3 … nd 2 nd operation part, 4 … switch, 5 … mounting component, 6 … cover body, 7 … decorative plate, 41 … switch box, 42 … flange part, 43 … elastic clamping piece, 44 … terminal, 51 … plate part, 52 … upper frame part, 53 … lower frame part, 54 … left frame part, 55 … right frame part, 56 … upper flange part, 57 … lower flange part, 61 … cover part, 62 … arm part, 63 … notch part, 71 … window part, 72 … screw, D … interval, F … fingertip, G1, G2, G3, G4 … gap, H … height, L … total length, R … curvature radius, W … width

Claims

1. A switch device is characterized by comprising a switch, a cover body and a mounting component, wherein the switch is vertically arranged on a 1 st operating part and a 2 nd operating part,

the cover is configured to move from an upper position covering the 1 st operating part to a lower position covering the 2 nd operating part by its own weight and to move from the lower position to the upper position by a manual operation against the own weight,

the attachment member is configured to normally hold the cover body at the lower position by the self-weight of the cover body.

2. The switch device according to claim 1, wherein the cover has a cutout portion that partially exposes a lower portion of the 2 nd operation portion.

3. The switch device according to claim 1 or 2, wherein the switch has the 1 st operating part and the 2 nd operating part of a seesaw type.

4. The switch device according to any one of claims 1 to 3, wherein the switch is turned on or off by an operation of the 1 st operation unit, and is turned off or on by an operation of the 2 nd operation unit.

5. A switch arrangement according to any of claims 1-4, characterized in that the deadweight is only the gravity acting through the mass of the enclosure.

6. The switch device according to any one of claims 1 to 5, wherein the mounting member includes a frame body for housing and fixing the switch,

the cover is held at an opening end of the frame.