JP4816331B2 - Suction cup device - Google Patents

Description

  The present invention relates to a suction cup device.

A suction cup device for attaching an article to a wall surface or an automobile dashboard has been proposed.
This type of suction cup device has a suction cup, a central shaft projecting from the center of the back of the suction cup, a pressing member that can contact the outer periphery of the back of the suction cup, and the suction surface of the suction cup to the suction surface. And an urging mechanism that urges the pressing member in a direction to press the outer peripheral portion of the back surface and urges the central portion of the suction cup in a direction away from the attracted surface.
Then, after the suction cup is attracted to the attracted surface, the central portion of the sucker is separated from the attracted surface by the urging mechanism, and the sucker device is attracted to the attracted surface in a stable state without rattling.
Conventionally, the pressing member is formed of a single member that covers the suction cup (see Patent Document 1).
JP 2006-64168 A

Therefore, when the attracted surface is a curved surface, the pressing member cannot contact the entire outer periphery of the suction cup, and therefore, the suction member is not easily displaced in the direction of separating the central portion of the suction cup from the attracted surface. There was a problem that it was difficult to install in a stable state on the suction surface.
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a suction cup that is advantageous for mounting on a suction surface in a stable state without rattling even when the suction surface is a curved surface. To provide an apparatus.

In order to achieve the above-described object, the present invention provides a suction cup in which one surface in the thickness direction is an adsorption surface and the other surface is a back surface, and a central portion of the back surface of the suction cup along the thickness direction. A central shaft projecting in a direction away from the back surface, an accessory mounting portion connected to a tip of the central shaft, and the back surface of the suction cup assembled to the central shaft between the suction cup and the accessory mounting portion A pressing member capable of contacting an outer peripheral portion, and provided between the accessory mounting portion and the pressing member, presses the pressing member against the outer peripheral portion of the back surface in a state where the suction surface is attracted to the attracted surface. And a biasing mechanism that biases the central portion of the suction cup in a direction away from the attracted surface, wherein the pressing member includes a back surface of the suction cup and the accessory mounting portion. Between the suction cups and A first member extending along the direction, the central axis is movably inserted in a central portion of the extending direction, and both ends of the extending direction are in contact with the outer peripheral portion of the back surface, and the first member, It extends along the diameter direction of the suction cup in a direction intersecting the extending direction of the first member with the accessory mounting portion, and the central axis is movably inserted through a central portion in the extending direction. The both ends of the extending direction are configured to include second members that respectively contact the outer peripheral portion of the back surface, and the urging mechanism is wound around the central axis and the central axis so as to be wound on the first axis. A central portion in the extending direction of the first member and a central portion in the extending direction of the second member provided between a central portion in the extending direction of the member and a central portion in the extending direction of the second member; A first coil spring urging in a direction to release the second coil spring and the second part wound around the central shaft A second coil spring that is provided between a central portion in the extending direction of the second member and the accessory attaching portion and biases the second member in the direction in which the central portion in the extending direction of the second member is separated from the accessory attaching portion. It is configured .
Further, the present invention is a suction cup in which one surface in the thickness direction is an adsorption surface and the other surface is a back surface, and in a direction away from the back surface along the thickness direction from the center of the back surface of the suction cup. When the suction surface is adsorbed to the attracted surface assembled to the central axis between the projecting central shaft, the accessory mounting portion connected to the tip of the central shaft, and the suction cup and the accessory mounting portion A suction member that can abut on the attracted surface portion outside the attracted surface portion to which the attracting surface is attracted, and the suction surface provided between the accessory mounting portion and the press member. The suction member is urged in a direction to press the pressing member against the attracted surface portion outside the attracted surface portion adsorbed by the attracting surface and the central portion of the suction cup is separated from the attracted surface. With a biasing mechanism that biases in the direction A was suction cup devices, the pressing member, the central axis in the central portion of the extending direction thereof extends along the diameter direction of the suction cup in between the rear and the accessory attaching portion of the suction cup is movable A first member that is inserted into the suction surface and has both ends extending in contact with the attracted surface portion outside the attracted surface portion to which the attracted surface is attracted while the attracted surface is attracted to the attracted surface; The central axis extends between the first member and the accessory mounting portion in a direction intersecting the extending direction of the first member and along the diameter direction of the suction cup, and in the central portion of the extending direction. Is inserted in a movable manner, and both ends in the extending direction are in contact with the attracted surface portion outside the attracted surface portion where the attracted surface is attracted in a state where the attracted surface is attracted to the attracted surface. 2 members, and the biasing mechanism A central axis, and wound between the central axis and provided between a central portion in the extending direction of the first member and a central portion in the extending direction of the second member, in the extending direction of the first member. A first coil spring that biases the central portion in a direction separating the central portion in the extending direction of the second member; a central portion in the extending direction of the second member that is wound around the central shaft; and the accessory And a second coil spring provided between the mounting portion and biasing in a direction to separate the accessory mounting portion from a central portion in the extending direction of the second member .

  According to the present invention, the pressing member is composed of a plurality of members separated from each other that are separately assembled to the central axis and come into contact with different locations in the circumferential direction of the outer peripheral portion of the back surface of the suction cup. The member is composed of a plurality of members separated from each other that come into contact with different locations in the circumferential direction of the outer peripheral portion of the suction cup at the location of the suction surface outside the location of the suction surface where the suction surface is attracted by being separately assembled on the central axis Therefore, even if the attracted surface is a curved surface, the outer peripheral portion of the suction cup can be pressed by following the curved shape of the attracted surface by a plurality of members, so that the central portion of the sucker is stable. Can be displaced in a direction away from the surface to be attracted, which is advantageous in securely mounting the suction cup device without rattling on the surface to be attracted.

(First embodiment)
Next, embodiments of the present invention will be described with reference to the drawings.
1 is a perspective view of the suction cup device 10 of the first embodiment, FIG. 2 is a plan view of the suction cup device 10, FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, and FIG. .
The suction cup device 10 shown in FIG. 1 supports, for example, a display panel of a car navigation device or a television device on a dashboard in a vehicle cabin, and supports a controller for remotely controlling various in-vehicle devices. To do.
As shown in FIGS. 1 to 4, the suction cup device 10 according to the first embodiment includes a suction cup 12, a central shaft 14, an accessory mounting portion 16, a pressing member 18, an urging mechanism 20, and the like. Yes.

As shown in FIGS. 1 to 4, the suction cup 12 has a disk shape, and one surface in the thickness direction is a concave suction surface 22 and the other surface is a convex back surface 24.
For the suction cup 12, various conventionally known materials used for the conventional suction cup 12 such as a synthetic resin material having elasticity, such as urethane, styrene, and silicon resin can be used.
In addition, although omitted in the drawings, a piece for removal operation that extends in the radially outward direction of the suction cup 12 is provided on the outer edge of the suction cup 12.
Various conventionally known configurations can be adopted as the suction cup 12. For example, as shown in FIG. 9, the suction cup 12 is composed of a disk-shaped suction cup body 26 that forms the back surface 24, and a gel that forms the suction surface 22. The layer 28 may be included.
As with the suction cup 12, the suction cup body 26 is made of a variety of conventionally known materials used for the conventional suction cup 12, such as a synthetic resin material having elasticity, such as urethane, styrene, or silicon resin. Is possible.
The gel layer 28 is made of gel, and a concave mounting surface 2602 is formed on the surface of the suction cup body 26 located opposite to the back surface 24. The mounting surface 2602 is joined to the mounting surface 2602 so as to cover the mounting surface 2602. The gel layer 28 is formed on the surface.
As such a gel, a polyethylene-based, styrene-based, or silicone-based synthetic resin-based gel can be used. As a polyethylene-based gel, for example, the commercial name of Cosmo Keiki Co., Ltd. Can be used. As the styrenic gel, for example, a commercially available product name “NAGFLEX” of INOAC CORPORATION can be used. As the silicon-based gel, for example, a commercially available product name “αGEL” (alpha gel) of Geltech Co., Ltd. can be used.
In addition, for example, a method such as two-color molding or bonding using an adhesive can be employed for bonding the gel layer 28 to the mounting surface 2602.
When the adsorption surface 22 is constituted by the gel layer 28, the adsorption surface 2 is formed as a skin-textured surface, is formed with a rough uneven surface, or is formed with a rough surface. The surface 22 is deformed following the uneven surface, and the suction surface 22 can be in close contact with the uneven surface or the rough surface without interposing a gap between the uneven surface, and the suction cup 12 can be securely attached to the uneven surface or the rough surface. This is advantageous in securely attaching various articles to the attracted surface 2 such as a leather surface of the dashboard panel.

As shown in FIGS. 1 to 4, the central axis 14 extends away from the rear surface 24 along the thickness direction of the suction cup 12 (along the central axis 14 of the suction surface 22) from the center of the rear surface 24 of the suction cup 12. Projected to
The central shaft 14 is made of metal or hard synthetic resin, and the lower end of the central shaft 14 is embedded in the central portion of the suction cup 12.

The accessory mounting portion 16 is attached to the tip of the central shaft 14. In this embodiment, the accessory mounting portion 16 has a circular plate shape, and the central shaft 14 is connected to the center of the accessory mounting portion 16. Accordingly, in the present embodiment, the location of the accessory mounting portion 16 to which the tip of the central shaft 14 is connected is a plane 1602 that is orthogonal to the central shaft 14 as shown in FIGS.
The accessory mounting portion 16 is formed of a metal or a hard synthetic resin similarly to the central shaft 14, and the central shaft 14 and the accessory mounting portion 16 are integrally formed in the present embodiment.
For example, a display panel of a car navigation device or a television device, a controller for remotely controlling various in-vehicle devices, or the like is detachably attached to the accessory mounting portion 16.

The pressing member 18 is provided so as to be able to contact the outer peripheral portion of the back surface 24 of the suction cup 12.
The pressing member 18 is composed of a plurality of members separated from each other that are separately assembled to the central shaft 14 and come into contact with different locations in the circumferential direction of the outer peripheral portion of the back surface 24 of the suction cup 12.
In the present embodiment, the plurality of members are two members, a first member 30 and a second member 32, and the first and second members 30 and 32 are formed of a hard synthetic resin and are both plate-like. Presents.
The first member 30 is an intermediate portion between the back surface 24 of the suction cup 12 and the accessory mounting portion 16 and has a width larger than the outer diameter of first and second coil springs 34 and 36, which will be described later, in the diameter direction of the suction cup 12. The central shaft 14 is movably inserted in the central portion in the extending direction, and both ends in the extending direction are formed so as to be in contact with the outer peripheral portion of the back surface 24, respectively.
In more detail, the 1st member 30 is exhibiting the curved plate shape which the center part of the extending direction displaced in the direction which leaves | separates from the suction cup 12 rather than the both ends of the extending direction.
And the hole 3002 is formed in the center part of the extension direction of the 1st member 30, and the center axis | shaft 14 is penetrated by this hole 3002 so that the movement to an axial direction is possible.
The second member 32 is a portion between the first member 30 and the accessory mounting portion 16, and has a width larger than the outer diameter of first and second coil springs 34 and 36, which will be described later, in the extending direction of the first member 30. Extending along the diameter direction of the suction cup 12, the central shaft 14 is movably inserted in the central portion of the extending direction, and both ends in the extending direction are in contact with the outer peripheral portion of the back surface 24. It is made possible.
In more detail, the 2nd member 32 is exhibiting the curved plate shape which the center part of the extending direction displaced in the direction which leaves | separates from the suction cup 12 rather than the both ends of the extending direction.
A hole 3202 is formed in the central portion of the second member 32 in the extending direction, and the central shaft 14 is inserted into the hole 3202 so as to be movable in the axial direction.

Various arrangement structures of the first and second members 30 and 32, which are a plurality of members constituting the pressing member 18, are conceivable. For example, the central axes of the holes 3002 and 3202 of the first and second members 30 and 32 are considered. 14, the first and second members 30, 32 may be supported so as to be movable in the axial direction on the central shaft 14, or the inner diameter of the holes 3002, 3202 may be the outer diameter of the central shaft 14. The upper and lower end portions of the first coil spring 34, which will be described later, are fixed to the lower surface of the accessory mounting portion 16 and the upper surface of the first member 30, respectively. The upper and lower end portions of 36 may be fixed to the lower surface of the first member 30 and the upper surface of the second member 32, respectively.
In the former case, the first and second members 30 and 32 are separately assembled to the central shaft 14 so as to be movable in the axial direction of the central shaft 14 between the suction cup 12 and the accessory mounting portion 16. In the latter case, the first and second members 30 and 32 can be moved in the axial direction of the central shaft 14 between the suction cup 12 and the accessory mounting portion 16. , 36 are separately assembled to the central shaft 14 respectively.
In the present embodiment, the central portion 32A in the extending direction of the second member 32 is formed by a flat portion 3210 that is parallel to the flat surface 1602 of the accessory mounting portion 16, as shown in FIGS. . When the flat portion 3210 is provided on the second member 32 in this way, an end portion of a second coil spring 36 described later is locked in a stable state, and the accessory mounting portion 16 and the second member 32 are extended in the extending direction. This is advantageous in securing a distance from the central portion 32A and ensuring a large expansion / contraction stroke of the second coil spring 36 without increasing the size of the suction cup device 10.

The portions where the first and second members 30 and 32 abut on the outer peripheral portion of the back surface 24 of the suction cup 12 extend in an arc shape along the circumferential direction of the outer peripheral portion of the rear surface 24 of the suction cup 12.
In the present embodiment, the portions where the first and second members 30 and 32 are in contact with the outer peripheral portion of the back surface 24 of the suction cup 12 are constituted by elastic portions 40 and 42 formed of an elastic material.
For example, urethane foam can be used as the elastic material that constitutes the elastic portions 40 and 42. For example, a trade name “PORON” of Inoac Corporation, which is a commercially available product, can be used.
The elastic portions 40 and 42 are attached to both ends in the extending direction of the first and second members 30 and 32 by, for example, an adhesive. Therefore, the elastic portions 40 and 42 are circumferential directions of the outer peripheral portion of the back surface 24 of the suction cup 12. It extends in an arc shape along.
When such elastic portions 40 and 42 are provided, the outer peripheral portion of the suction cup 12 is more reliably pressed by the first and second members 30 and 32 when the outer peripheral portion of the suction cup 12 is pressed against the attracted surface 2. In particular, when the attracted surface 2 is configured by a curved surface, the outer peripheral portion of the suction cup 12 is made to follow the curved surface, and the adsorptivity of the suction surface 22 of the suction cup 12 to the attracted surface 2 is ensured. This is advantageous.

The biasing mechanism 20 is provided between the accessory mounting portion 16, the suction cup 12, and the pressing member 18, and presses the pressing member 18 against the outer peripheral portion of the back surface 24 in a state where the suction surface 22 is attracted to the attracted surface 22. In addition to urging, the central portion of the suction cup 12 is urged away from the attracted surface 22.
The urging mechanism 20 includes a central shaft 14, a first coil spring 34, and a second coil spring 36.
The first coil spring 34 is wound around the central shaft 14, and is provided between the central portion 30 </ b> A in the extending direction of the first member 30 and the central portion 32 </ b> A in the extending direction of the second member 32. The central portion 30 </ b> A in the extending direction and the central portion 32 </ b> A in the extending direction of the second member 32 are biased in a direction away from each other.
The second coil spring 36 is wound around the central shaft 14 and provided between the central portion 32A in the extending direction of the second member 32 and the accessory mounting portion 16 and the central portion 32A in the extending direction of the second member 32. And the accessory mounting portion 16 are biased in a direction away from each other.

Furthermore, in the present embodiment, a rotation blocking mechanism that blocks the rotation of the first member 30 and the second member 32 around the central axis 14 is provided.
In the present embodiment, both ends of the first and second coil springs 34 and 36 are bent to form locking pins (not shown), and these locking pins are the first member 30, the second member 32, and accessory attachments. A rotation prevention mechanism is formed by locking in each locking hole of the portion 16. The configuration of the rotation prevention mechanism is arbitrary, and for example, the cross section of the central shaft 14 may be formed in a rectangle or D shape, and the holes 3002 and 3202 may be formed in a shape matching the cross section. Of course, the rotation prevention mechanism may be omitted, but providing the rotation prevention mechanism is advantageous in facilitating the movement of the urging mechanism 20.

Next, the operation of sucking the suction cup device 10 to the suction target surface 2 made of a flat surface will be described.
FIGS. 5A and 5B are explanatory diagrams when the suction cup device 10 is attracted to the attracted surface 2 constituted by a flat surface.
When sucking the suction cup device 10 to the suction target surface 2, the accessory mounting portion 16 is gripped so that the suction surface 22 faces the suction target surface 2, and the suction cup 12 is applied to the suction target surface 2.
When the suction cup 12 is applied to the suction surface 2, first, the outer periphery of the suction surface 22 is applied to the suction surface 2. In this state, air is interposed between the suction surface 22 and the suction surface 2. A space is formed.
Further, when the accessory mounting portion 16 is pressed toward the attracted surface 2, the central portion of the suction cup 12 is deformed in a direction approaching the attracted surface 2, and the entire area of the attracting surface 22 is in close contact with the attracted surface 2. The air interposed between the suction surface 22 and the surface to be attracted 2 is discharged from the space between the suction surface 22 and the surface to be attracted 2 and the suction surface 22 is almost vacuumed, and the suction cup 12 is attracted to the surface to be attracted 2. The suction cup device 10 is attached to the attracted surface 2.
On the other hand, since the dimension between the central part 30A of the first member 30 and the accessory mounting part 16 is reduced by pressing the accessory mounting part 16 toward the attracted surface 2, the first and second coil springs 34, 36 is compressed, and by the reaction force, the first and second members 30 and 32 are biased in a direction away from the accessory mounting portion 16, and the elastic portions 40 and 42 of the first and second members 30 and 32 are attached to the suction cup 12. The outer periphery of the back surface 24 is pressed.
When the hand is released from the accessory mounting portion 16 in this state, the elastic portions 40 and 42 of the first and second members 30 and 32 move the back surface 24 of the suction cup 12 by the urging force of the first and second coil springs 34 and 36. The suction surface 2 is pressed through the center, and at the same time, the central portion of the suction cup 12 is forcibly displaced in the direction away from the suction surface 2 through the central shaft 14.
Thereby, the adhesion degree of the suction cup 12 is raised and the accessory attachment part 16 is attached to the to-be-adsorbed surface 2 in the state in which the rattling of the accessory attachment part 16 was prevented.

Next, the operation of attracting the suction cup device 10 to the attracted surface 2 made of a convex cylindrical surface will be described in comparison with a comparative example.
First, a comparative example will be described.
FIG. 20 is a perspective view of a suction cup device of a comparative example, and FIGS. 21A and 21B are cross-sectional explanatory views in the case where the suction cup device 80 of the comparative example is adsorbed to the attracted surface 2 formed of a convex cylindrical surface. .
In the comparative example, the pressing member 82 is formed by a single member 82 </ b> A as in the prior art, and a single coil spring 86 is disposed between the accessory mounting portion 84 and the back surface of the pressing member 82.
The lower end of the pressing member 82 was formed in an annular shape along the back surface 92 of the suction cup 88.
In this comparative example, similarly to the present embodiment, an elastic portion 94 is provided at the lower end of the pressing member 82, and the elastic portion 94 is formed in an annular shape corresponding to the lower end of the pressing member 82.
When the suction cup device 80 is attracted to the attracted surface 2 composed of a convex cylindrical surface, as shown in FIGS. 21A and 21B, the accessory mounting portion 84 is gripped to place the attracted surface 90 on the attracted surface 2. When the suction cup 88 is applied to the attracted surface 2, the highest portion of the cylindrical surface comes into contact with the elastic portion 94.
Therefore, the entire circumference of the outer peripheral portion of the suction cup 88 and the central portion of the suction cup 88 cannot be applied to the suction target surface 2, and the suction cup device 80 cannot be attached to the suction target surface 2 that is a cylindrical surface.
On the other hand, in this embodiment, as will be described below, the suction cup device is used even when the attracted surface 2 is a convex cylindrical surface or a concave cylindrical surface. 10 can be securely attached to the attracted surface 2.

Next, the operation of adsorbing the suction cup device 10 of the present embodiment to the attracted surface 2 formed of a convex cylindrical surface will be described.
6 (A) and 6 (B) are cross-sectional explanatory views in the case where the suction cup device 10 is attracted to the attracted surface 2 formed of a convex cylindrical surface.
FIGS. 7A and 7B are external explanatory views when the suction cup device 10 is attracted to the attracted surface 2 formed of a convex cylindrical surface.
When the suction cup device 10 is attracted to the attracted surface 2 formed of a convex cylindrical surface, as shown in FIGS. 6B, 7A, and 7B, elasticity at both ends of the first member 30 is obtained. So that the portions 40 are positioned at both sides along the circumferential direction of the cylindrical surface constituting the attracted surface 2 (the elastic portions 42 at both ends of the second member 32 are provided on the cylindrical surface constituting the attracted surface 2). The elastic portions 42 at both ends of the second member 32 constitute the attracted surface 2 as shown in FIG. 6A, so as to be positioned at both sides along the direction orthogonal to the circumferential direction. The elastic portions 40 at both ends of the first member 30 are positioned on both sides along the direction perpendicular to the circumferential direction of the cylindrical surface constituting the attracted surface 2 so as to be positioned at both sides along the circumferential direction of the cylindrical surface. To be located).
With the first and second members 30 and 32 arranged in this manner, when the accessory mounting portion 16 is gripped and the suction surface 22 faces the suction surface 2, and the suction cup 12 is applied to the suction surface 2, Similarly to the above, the suction cup 12 is attracted to the attracted surface 2, whereby the sucker device 10 is attached to the attracted surface 2.
Then, when the hand is released from the accessory mounting portion 16, the elastic portions 40, 42 of the first and second members 30, 32 press the attracted surface 2 through the back surface 24 of the suction cup 12, and at the same time, the central shaft 14 is moved. Accordingly, the central portion of the suction cup 12 is forcibly displaced in a direction away from the attracted surface 2.
In this case, since the elastic portions 40 and 42 of the first and second members 30 and 32 can be in contact with places having different heights, the outer peripheral portion of the suction surface 22 of the suction cup 12 is curved to the suction surface 2. Can be pressed to follow.
The biasing mechanism 20 includes first and second coil springs 34 and 36, and a plurality of members (first and second members 30, 32) are formed by the first and second coil springs 34 and 36. Therefore, it is advantageous to press the outer peripheral portion of the suction cup 12 following the curved shape of the attracted surface 2.
Thereby, the adhesion degree of the suction cup 12 is raised and the accessory attachment part 16 is attached to the to-be-adsorbed surface 2 in the state in which the rattling of the accessory attachment part 16 was prevented.
That is, when the attracted surface 2 is a convex cylindrical surface, the first and second members 30 and 32 are arranged in a specific positional relationship with respect to the cylindrical surface to prevent rattling. Thus, the accessory attaching portion 16 can be attached to the attracted surface 2.

Next, the operation of adsorbing the suction cup device 10 of the present embodiment to the attracted surface 2 formed of a concave cylindrical surface will be described.
FIGS. 8A and 8B are external explanatory views when the suction cup device 10 is attracted to the attracted surface 2 formed of a concave cylindrical surface.
When the suction cup device 10 is attracted to the attracted surface 2 made of a concave cylindrical surface, as shown in FIG. 8 (A), as in the case where the attracted surface 2 is a convex cylindrical surface, The elastic portions 40 at both ends of the member 30 are positioned at both sides along the circumferential direction of the cylindrical surface constituting the attracted surface 2 (the elastic portions 42 at both ends of the second member 32 are located at the attracted surface 2 Or the elastic portions 42 at both ends of the second member 32 as shown in FIG. 8 (B). The elastic portions 40 at both ends of the first member 30 are orthogonal to the circumferential direction of the cylindrical surface constituting the attracted surface 2 so as to be located on both sides along the circumferential direction of the cylindrical surface constituting the attracting surface 2 (Position so that it is located on both sides along the direction).
With the first and second members 30 and 32 arranged in this manner, when the accessory mounting portion 16 is gripped and the suction surface 22 faces the suction surface 2, and the suction cup 12 is applied to the suction surface 2, Similarly to the above, the suction cup 12 is attracted to the attracted surface 2, whereby the sucker device 10 is attached to the attracted surface 2. Then, when the hand is released from the accessory mounting portion 16, the elastic portions 40, 42 of the first and second members 30, 32 press the attracted surface 2 through the back surface 24 of the suction cup 12, and at the same time, the central shaft 14 is moved. Accordingly, the central portion of the suction cup 12 is forcibly displaced in a direction away from the attracted surface 2.
In this case, since the elastic portions 40 and 42 of the first and second members 30 and 32 can be in contact with places having different heights, the outer peripheral portion of the suction surface 22 of the suction cup 12 is curved to the suction surface 2. Can be pressed to follow.
The biasing mechanism 20 includes first and second coil springs 34 and 36, and a plurality of members (first and second members 30, 32) are formed by the first and second coil springs 34 and 36. Therefore, it is advantageous to press the outer peripheral portion of the suction cup 12 following the curved shape of the attracted surface 2.
Thereby, the accessory attachment part 16 is attached to the to-be-adsorbed surface 2 in the state in which the rattling of the accessory attachment part 16 was prevented.
Therefore, when the attracted surface 2 is a concave cylindrical surface, the first and second members 30 and 32 are arranged in a specific positional relationship with respect to the cylindrical surface in a state where rattling is prevented. The accessory attachment portion 16 can be attached to the attracted surface 2.

That is, according to the present embodiment, the pressing member 18 is assembled to the central shaft 14 separately, and the first member 30 separated from each other is in contact with different locations in the circumferential direction of the outer peripheral portion of the back surface 24 of the suction cup 12. Since it is constituted by the second member 32, the suction cup is used not only when the attracted surface 2 is a flat surface but also when it is a convex cylindrical surface, a concave cylindrical surface, or a curved surface other than the cylindrical surface. By pressing the outer peripheral portion of 12 following the curved shape of the attracted surface 2, the suction cup device 10 can be securely attached to the attracted surface 2 with an increased degree of adhesion.
Therefore, shakiness of the display panel and the controller attached to the suction cup device 10 can be suppressed, the display panel can be easily seen, or it is advantageous in improving the operability of the controller.
In addition, the number of the members separated from each other constituting the pressing member 18 is not limited to two, the first member 30 and the second member 32 described above, and may be two or more.

(Second Embodiment)
Next, a second embodiment will be described with reference to the drawings.
10 is a perspective view of the suction cup device 10 according to the second embodiment, FIG. 11 is a plan view of the suction cup device 10, FIG. 12 is a view as viewed from the arrow X in FIG. 10, and FIG. 14 is a sectional view taken along line AA in FIG. 10, and FIG. 15 is a sectional view taken along line BB in FIG.
In the suction cup device 10 according to the second embodiment, when the suction surface 22 is attracted to the attracted surface 2, the same parts and members as in the first embodiment are described with the same reference numerals. Unlike the first embodiment, the pressing member 18 abuts not on the outer peripheral portion of the back surface 24 of the suction cup 12 but on the portion of the attracted surface 2 outside the location of the attracted surface 2 on which the attracting surface 22 is attracted. Since other configurations are the same as those of the first embodiment, description thereof is omitted.
In other words, the pressing member 18 is separately assembled to the central shaft 14, and when the adsorption surface 22 is adsorbed to the adsorption surface 2, the pressing member 18 is located at the location of the attracted surface 2 outside the location of the attracted surface 2. The suction cup 12 is composed of a plurality of members that are in contact with different locations in the circumferential direction of the outer peripheral portion of the suction cup 12.

In the present embodiment, as in the first embodiment, the plurality of members are two members, the first member 30 and the second member 32, and the first and second members 30, 32 are hard. Both are formed from a synthetic resin and have a plate shape.
The first member 30 is an intermediate portion between the back surface 24 of the suction cup 12 and the accessory mounting portion 16 and has a width larger than the outer diameter of the first and second coil springs 34 and 36 along the diameter direction of the suction cup 12. The center axis 14 is movably inserted in the center of the extending direction and the both ends of the extending direction are attracted to the attracted surface 22 when the attracted surface 22 is attracted to the attracted surface 2. It is formed so as to be able to come into contact with the place of the attracted face 2 outside the place of the face 2.
In more detail, the 1st member 30 is exhibiting the curved plate shape which the center part of the extending direction displaced in the direction which leaves | separates from the suction cup 12 rather than the both ends of the extending direction.
And the hole 3002 is formed in the center part of the extension direction of the 1st member 30, and the center axis | shaft 14 is penetrated by this hole 3002 so that the movement to an axial direction is possible.

The second member 32 is a portion between the first member 30 and the accessory mounting portion 16 and has a width larger than the outer diameter of the first and second coil springs 34 and 36 and is orthogonal to the extending direction of the first member 30. Extending along the diameter direction of the suction cup 12, the central shaft 14 is movably inserted in the central portion of the extending direction, and the suction surfaces 22 are attracted to the attracted surface 2 at both ends in the extending direction. In this case, the suction surface 22 is formed so as to be able to come into contact with the location of the attracted surface 2 outside the location of the attracted surface 2 that is attracted.
In more detail, the 2nd member 32 is exhibiting the curved plate shape which the center part of the extending direction displaced in the direction which leaves | separates from the suction cup 12 rather than the both ends of the extending direction.
A hole 3202 is formed in the central portion of the second member 32 in the extending direction, and the central shaft 14 is inserted into the hole 3202 so as to be movable in the axial direction.
Further, the central portion 32A in the extending direction of the second member 32 is formed by a flat surface portion 3210 parallel to the flat surface 1602 of the accessory mounting portion 16, as shown in FIGS. The end portion of the coil spring 36 is locked in a stable state, and the distance between the accessory mounting portion 16 and the central portion 32A in the extending direction of the second member 32 is secured, and the suction cup device 10 is not enlarged. A large expansion / contraction stroke of the second coil spring 36 is ensured.

When the suction surface 22 is attracted to the attracted surface 2, the portions of the first and second members 30, 32 that are in contact with the location of the attracted surface 2 outside the location of the attracted surface 2 to which the attracting surface 22 is attracted are: It extends in an arc shape along the circumferential direction of the outer peripheral portion of the suction cup 12.
In the present embodiment, similar to the first embodiment, the first and second members 30 and 32 that are in contact with the location of the attracted surface 2 outside the location of the attracted surface 2 to which the attracting surface 22 is attracted. The portion is composed of elastic portions 40 and 42 formed of an elastic material.

The biasing mechanism 20 is provided between the accessory mounting portion 16, the suction cup 12, and the pressing member 18, and the attracting surface 22 attracts the attracting surface 22 to the attracting surface 22, and the attracting surface 22 attracts the attracting surface 22. The center of the suction cup 12 is urged in a direction away from the attracted surface 22 while being urged in a direction to be pressed against the location of the attracted surface 2 outside the two locations.
The urging mechanism 20 includes a central shaft 14, a first coil spring 34, and a second coil spring 36.
The first coil spring 34 is wound around the central shaft 14, and is provided between the central portion 30 </ b> A in the extending direction of the first member 30 and the central portion 32 </ b> A in the extending direction of the second member 32. The central portion 30 </ b> A in the extending direction and the central portion 32 </ b> A in the extending direction of the second member 32 are biased in a direction away from each other.
The second coil spring 36 is wound around the central shaft 14 and provided between the central portion 32A in the extending direction of the second member 32 and the accessory mounting portion 16 and the central portion 32A in the extending direction of the second member 32. And the accessory mounting portion 16 are biased in a direction away from each other.
Further, in the present embodiment, as in the first embodiment, a rotation preventing mechanism for preventing the rotation of the first member 30 and the second member 32 around the central axis 14 is provided.

  The effect similar to 1st Embodiment is show | played also by such 2nd Embodiment. That is, the pressing member 18 is assembled to the central shaft 14 separately, and the first member 30 separated from each other is in contact with a different portion of the attracted surface 2 outside the location of the attracted surface 2 to which the attracting surface 22 is attracted. Since it is constituted by the second member 32, the suction cup is used not only when the attracted surface 2 is a flat surface but also when it is a convex cylindrical surface, a concave cylindrical surface, or a curved surface other than the cylindrical surface. By pressing the outer peripheral portion of 12 in accordance with the curved shape of the attracted surface 2, the degree of adhesion can be increased and the suction cup device 10 can be securely attached to the attracted surface 2. It is possible to suppress the shakiness of the display panel and the controller, to make the display panel easy to see, or to improve the operability of the controller.

(Third embodiment)
Next, a third embodiment will be described with reference to the drawings.
16 is a perspective view of the suction cup device 10 according to the third embodiment, FIG. 17 is a plan view of the suction cup device 10, FIG. 18 is a front view of the suction cup device 10, and FIG. 19 is a cross-sectional view taken along line AA in FIG.
The same parts and members as those in the first embodiment will be described with the same reference numerals. The suction cup device 10 according to the third embodiment includes an accessory mounting portion 50, a pressing member 52, a biasing mechanism 54, and the like. The configuration is different from that of the first embodiment.

That is, the suction cup device 10 according to the third embodiment includes a suction cup 12, a central shaft 14, an accessory mounting portion 50, a pressing member 52, an urging mechanism 54, and the like.
The configuration of the suction cup 12 and the configuration of the central shaft 14 are the same as those in the first embodiment.

The accessory mounting portion 50 includes a disc portion 5002 having a size corresponding to the outer diameter of the suction cup 12. The upper end of the central shaft 14 is connected to the center of the disc portion 5002.
Similar to the central shaft 14, the accessory mounting portion 50 is made of metal or hard synthetic resin.
As shown in FIG. 19, a plurality of shaft insertion holes 5004 are formed in the outer peripheral portion of the disc portion 5002 at equal intervals in the circumferential direction.
For example, a display panel of a car navigation device or a television device, a controller for remotely controlling various in-vehicle devices, and the like are detachably attached to the accessory mounting portion 50.

The pressing member 52 is provided so as to be able to contact the outer peripheral portion of the back surface 24 of the suction cup 12.
The pressing member 52 is composed of a plurality of members 52A that are separated from each other and come into contact with different locations in the circumferential direction of the outer peripheral portion of the back surface 24 of the suction cup 12.
In the present embodiment, the plurality of members 52A are formed of a hard synthetic resin, both of which are plate-shaped and extend in an arc shape along the circumferential direction of the outer peripheral portion of the back surface of the suction cup 12.
In the present embodiment, four members 52A are provided, but the number of members 52A may be two or more.
In the third embodiment, the elastic portions 40 and 42 of the first embodiment are omitted. However, similarly to the first embodiment, a plurality of members 52A are provided on the back surface 24 of the suction cup 12. You may make it provide the elastic parts 40 and 42 formed with the elastic material in the part contact | abutted to an outer peripheral part.
As shown in FIG. 19, a concave portion 1810 made of a cylindrical surface is formed in an open shape on the upper surface of the plurality of members 52 </ b> A and in the central portion in the extending direction.

The urging mechanism 54 includes a plurality of connecting shafts 56 and a plurality of coil springs 58. The connecting shafts 56 and the coil springs 58 are provided in a number corresponding to the member 52A.
Each connecting shaft 56 extends in parallel with the central shaft 14, and a lower end thereof is tiltably coupled to the concave portion 1810 of the member 52 </ b> A, and an upper end thereof is inserted into the shaft insertion hole 5004 of the accessory mounting portion so as to be movable in the axial direction. Arranged.
A stopper 5602 formed in a disk shape with a diameter larger than the inner diameter of the shaft insertion hole 5004 is provided at an end portion where each connecting shaft 56 protrudes from the upper surface of the accessory mounting portion 50.
This stopper regulates the movement limit position of the connecting shaft 56 in the suction cup 12 direction.

The coil spring 58 is wound around each connecting shaft 56 and urges a plurality of members in directions away from the accessory mounting portion 50.
In the present embodiment, a flange portion 5604 is formed near the lower end of the connecting shaft 56, and one end of the coil spring 58 in the longitudinal direction is locked to the accessory mounting portion 50, and the other end in the longitudinal direction thereof is a flange. The portion 5604 is disposed to be locked.
That is, in the third embodiment, the plurality of members 52A constituting the pressing member 52 are movable in the axial direction of the central shaft 14 between the suction cup 12 and the accessory mounting portion 50 (more specifically, the center It can be moved in a direction parallel to the axial direction of the shaft 14) and is separately assembled to the central shaft 14 via the accessory mounting portion 50, the connecting shaft 56 and the coil spring 58.

Also in the third embodiment, similarly to the first embodiment, the pressing member 52 is separately assembled to the central shaft 14 and is different in the circumferential direction of the outer peripheral portion of the back surface 24 of the suction cup 12. Is formed by four members 52A separated from each other so that the attracted surface 2 is not only a flat surface but also a convex cylindrical surface, a concave cylindrical surface, or a curved surface other than the cylindrical surface. Even in this case, the outer peripheral portion of the suction cup 12 can be pressed by following the curved shape of the attracted surface 2.
Further, since each member 52A is individually urged by the coil spring 58, it is advantageous in pressing the outer peripheral portion of the suction cup 12 following the curved shape of the attracted surface 2.
Therefore, also according to the third embodiment, the degree of adhesion of the suction cup 12 can be increased and the suction cup device 10 can be securely attached to the attracted surface 2, and the shakiness of the display panel or controller attached to the suction cup device 10 can be achieved. Can be suppressed and the display panel can be easily seen, or it is advantageous in improving the operability of the controller.

As in the relationship between the first embodiment and the second embodiment, also in the third embodiment, the pressing member 52 (the plurality of members 52A) is placed on the outer peripheral portion of the back surface 24 of the suction cup 12. Alternatively, the suction surface 22 may be in contact with the location of the attracted surface 2 outside the location of the attracted surface 2 that is attracted, and even if configured in this way, the same effect as in the third embodiment can be obtained. Played.
In the first, second, and third embodiments, the suction cup device 10 for attaching a display panel, a controller of various in-vehicle devices, and the like has been described. However, an article supported by the suction cup device 10 is an in-vehicle article. The present invention is not limited to this, and can be applied to various articles.

It is a perspective view of suction cup device 10 of a 1st embodiment. 2 is a plan view of the suction cup device 10. FIG. FIG. 3 is a sectional view taken along line AA in FIG. 2. It is BB sectional drawing of FIG. (A), (B) is explanatory drawing in the case of making the suction cup apparatus 10 adsorb | suck to the to-be-adsorbed surface 2 comprised with a flat surface. (A), (B) is sectional explanatory drawing in the case of making the suction cup apparatus 10 adsorb | suck to the to-be-adsorbed surface 2 which consists of a convex cylindrical surface. (A), (B) is an external view explanatory drawing in the case of making the suction cup apparatus 10 adsorb | suck to the to-be-adsorbed surface 2 which consists of a convex cylindrical surface. (A), (B) is an external view explanatory drawing in the case of making the suction cup apparatus 10 adsorb | suck to the to-be-adsorbed surface 2 which consists of a concave cylindrical surface. It is sectional drawing which shows the suction cup apparatus 10 which provided the gel layer 28 in the suction cup 12. FIG. It is a perspective view of the suction cup apparatus 10 of 2nd Embodiment. 2 is a plan view of the suction cup device 10. FIG. It is a X arrow directional view of FIG. It is a Y arrow line view of FIG. It is AA sectional view taken on the line of FIG. It is BB sectional drawing of FIG. It is a perspective view of the suction cup apparatus 10 of 3rd Embodiment. 2 is a plan view of the suction cup device 10. FIG. 1 is a front view of a suction cup device 10. It is AA sectional view taken on the line of FIG. It is a perspective view of the suction cup apparatus of a comparative example. (A), (B) is sectional explanatory drawing in the case of making the suction cup apparatus 80 of a comparative example adsorb | suck to the to-be-adsorbed surface 2 which consists of a convex cylindrical surface.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Suction device, 12 ... Suction cup, 14 ... Center axis, 16 ... Accessory attachment part, 18 ... Pressing member, 20 ... Biasing mechanism, 22 ... Suction surface, 24 ... Back surface, 30 ... ... 1st member, 32 ... 2nd member.

Claims (16)

A suction cup in which one surface in the thickness direction is an adsorption surface and the other surface is a back surface;
A central axis projecting in a direction away from the back surface along the thickness direction from the center of the back surface of the suction cup;
An accessory attachment connected to the tip of the central axis;
A pressing member assembled to the central shaft between the suction cup and the accessory mounting portion and capable of contacting the outer peripheral portion of the back surface of the suction cup;
The central portion of the suction cup is urged in the direction of pressing the pressing member against the outer peripheral portion of the back surface with the suction surface being adsorbed to the attracted surface provided between the accessory mounting portion and the pressing member. An urging mechanism for urging the direction away from the attracted surface;
A suction cup device comprising:
The pressing member is
The suction cup extends along the diameter direction of the suction cup between the back face of the suction cup and the accessory mounting portion, and the central axis is movably inserted in the central portion of the extension direction, and both ends in the extending direction are the back face. First members that respectively contact the outer peripheral portions of
The central axis extends between the first member and the accessory mounting portion in a direction intersecting with the extending direction of the first member and along the diameter direction of the suction cup, and the central axis at the central portion in the extending direction. A second member that is movably inserted and has both ends extending in contact with the outer peripheral portion of the back surface.
The biasing mechanism is
The central axis;
Wrapped around the central shaft and provided between the central part in the extending direction of the first member and the central part in the extending direction of the second member, and the central part in the extending direction of the first member and the A first coil spring that urges the second member in a direction away from the central portion in the extending direction;
A direction wound around the central shaft and provided between a central portion in the extending direction of the second member and the accessory mounting portion, and separating the central portion in the extending direction of the second member from the accessory mounting portion. A suction cup device including a second coil spring that biases the coil spring . A suction cup in which one surface in the thickness direction is an adsorption surface and the other surface is a back surface;
A central axis projecting in a direction away from the back surface along the thickness direction from the center of the back surface of the suction cup;
An accessory attachment connected to the tip of the central axis;
When the suction surface is attached to the suction surface and is attached to the suction surface between the suction cup and the accessory mounting portion, the suction surface contacts the suction surface portion outside the suction surface portion. A pressing member capable of contacting;
The adsorbed surface portion outside the adsorbed surface portion where the adsorbing surface adsorbs the pressing member with the adsorbing surface adsorbed to the adsorbed surface provided between the accessory mounting portion and the pressing member. An urging mechanism for urging the central portion of the suction cup in a direction away from the attracted surface;
A suction cup device comprising:
The pressing member is
It extends along the diameter direction of the suction cup between the back surface of the suction cup and the accessory mounting portion, and the central axis is movably inserted in the central portion of the extension direction, and both ends in the extending direction are A first member abutting on the attracted surface portion outside the attracted surface portion adsorbed by the attracted surface in a state where the attracted surface is adsorbed on the attracted surface;
The central axis extends between the first member and the accessory mounting portion in a direction intersecting with the extending direction of the first member and along the diameter direction of the suction cup, and the central axis at the central portion in the extending direction. A second end that is movably inserted and has both ends extending in contact with the attracted surface portion outside the attracted surface portion adsorbed by the attracted surface while the attracted surface is attracted to the attracted surface. It is comprised including the member,
The biasing mechanism is
The central axis;
Wrapped around the central shaft and provided between the central part in the extending direction of the first member and the central part in the extending direction of the second member, and the central part in the extending direction of the first member and the A first coil spring that urges the second member in a direction away from the central portion in the extending direction;
A direction wound around the central shaft and provided between a central portion in the extending direction of the second member and the accessory mounting portion, and separating the central portion in the extending direction of the second member from the accessory mounting portion. And a second coil spring that biases
Suction cup device. The portion of the first member and the second member that abuts the attracted surface portion outside the attracted surface portion where the attracted surface is adsorbed in a state where the attracted surface is adsorbed to the attracted surface, It extends in an arc shape along the circumferential direction of the outer periphery of the suction cup
The suction cup device according to claim 2. The first member and the second member are formed of a hard material, and an elastic portion formed of an elastic material is provided at a portion where the first member and the second member abut on the outer peripheral portion of the back surface of the suction cup. Has been
The suction cup device according to claim 1. The first member and the second member are made of a hard material, and the sucked surface of the first member and the second member is attracted to the attracted surface while the attracted surface is attracted to the attracted surface. An elastic portion made of an elastic material is provided at a portion that contacts the attracted surface portion outside the surface portion.
The suction cup device according to claim 2. Each of the first member and the second member is formed in a curved shape in which a central portion in the extending direction is displaced in a direction away from the suction cups than both ends in the extending direction.
The suction cup device according to claim 1 . Each of the first member and the second member is formed in a curved shape in which a central portion in the extending direction is displaced in a direction away from the suction cups than both ends in the extending direction.
The suction cup device according to claim 2 . The first member and the second member are both plate-shaped, each having a width larger than the outer diameter of the first and second coil springs, and the central portion in the extending direction is more than the both ends in the extending direction. It is formed to extend in a curved shape displaced in a direction away from the suction cup
The suction cup device according to claim 6 or 7 . The location of the accessory mounting portion to which the tip of the central axis is connected is a plane orthogonal to the central axis, and the location facing the plane at the central portion in the extending direction of the second member is the A plane part parallel to the plane is formed
The suction cup device according to claim 8 . A rotation prevention mechanism is provided for preventing rotation of the first member and the second member around the central axis.
The suction cup device according to claim 1 or 2 . The suction cup is composed of a suction cup body and a gel layer,
The suction cup body is formed of an elastic material and constitutes the back surface.
The gel layer is made of gel and attached to the suction cup body to constitute the suction surface.
The suction cup device according to claim 1 or 2. A suction cup in which one surface in the thickness direction is an adsorption surface and the other surface is a back surface;
A central axis projecting in a direction away from the back surface along the thickness direction from the center of the back surface of the suction cup;
An accessory attachment connected to the tip of the central axis;
A pressing member assembled to the central shaft between the suction cup and the accessory mounting portion and capable of contacting the outer peripheral portion of the back surface of the suction cup;
The central portion of the suction cup is urged in the direction of pressing the pressing member against the outer peripheral portion of the back surface with the suction surface being adsorbed to the attracted surface provided between the accessory mounting portion and the pressing member. An urging mechanism for urging the direction away from the attracted surface;
A suction cup device comprising:
The pressing member is composed of a plurality of members separated from each other, which are separately assembled to the central axis so as to be movable in the axial direction of the central axis and come into contact with different locations in the circumferential direction of the outer peripheral portion of the back surface of the suction cup. The plurality of members constituting the pressing member are each formed to extend in an arc shape along the circumferential direction of the outer peripheral portion of the back surface of the suction cup,
The biasing mechanism is
A plurality of connecting shafts extending in parallel with the central axis, the lower ends of which are connected to the plurality of members, and the upper ends of the connecting shafts are movably supported by the accessory mounting portions;
A plurality of coil springs wound around each of the connecting shafts and biasing the plurality of members in directions away from the accessory mounting portions.
Suction cup device. A suction cup in which one surface in the thickness direction is an adsorption surface and the other surface is a back surface;
A central axis projecting in a direction away from the back surface along the thickness direction from the center of the back surface of the suction cup;
An accessory attachment connected to the tip of the central axis;
When the suction surface is attached to the suction surface and is attached to the suction surface between the suction cup and the accessory mounting portion, the suction surface contacts the suction surface portion outside the suction surface portion. A pressing member capable of contacting;
The adsorbed surface portion outside the adsorbed surface portion where the adsorbing surface adsorbs the pressing member with the adsorbing surface adsorbed to the adsorbed surface provided between the accessory mounting portion and the pressing member. An urging mechanism for urging the central portion of the suction cup in a direction away from the attracted surface;
A suction cup device comprising:
The pressing member is assembled separately to the central axis so as to be movable in the axial direction of the central axis, and the circumferential direction of the outer peripheral portion of the suction cup at the suctioned surface portion outside the suctioned surface portion where the suction surface is attracted Are formed of a plurality of members separated from each other, and each of the plurality of members constituting the pressing member extends in an arc shape along the circumferential direction of the outer peripheral portion of the back surface of the suction cup. Has been
The biasing mechanism is
A plurality of connecting shafts extending in parallel with the central axis, the lower ends of which are connected to the plurality of members, and the upper ends of the connecting shafts are movably supported by the accessory mounting portions;
A plurality of coil springs wound around each of the connecting shafts and biasing the plurality of members in directions away from the accessory mounting portions.
Suction cup device. A stopper for restricting the movement limit position of the connecting shaft in the suction cup direction is provided.
The suction cup device according to claim 12 or 13 . A flange portion is formed near the lower end of the connecting shaft, and the coil spring has one end in the longitudinal direction locked to the accessory mounting portion and the other end in the longitudinal direction locked to the collar portion. Arranged
The suction cup device according to claim 12 or 13 . The accessory mounting part is configured to include a disk part having a size corresponding to the outer diameter of the suction cup,
The upper end of the central axis is connected to the center of the disc part,
A plurality of shaft insertion holes are formed at intervals in the circumferential direction on the outer peripheral portion of the disk portion,
The plurality of connecting shafts are arranged such that upper portions thereof are inserted into the shaft insertion holes.
The suction cup device according to claim 12 or 13 .

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