JP2013053636A - Fall prevention apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fall prevention apparatus capable of strongly holding an article placed on a fixed surface.SOLUTION: The fall prevention apparatus 1 includes: a case (suction cup holding member) 2; a suction cup 20; and a pressing member 10 capable of supporting the article. The case 2 is urged in the direction of separating from the suction cup 20 by a spring (urging member) 6. The suction cup 20 can be elevated and lowered by the operation of an operation lever (suction cup operating member ) 5. Operations of an unsucked state and a sucked state of the suction cup 20 are selectable and the case 2 goes up and down accompanied by the operations. Accompanied by the going-up and down operations of the case, the pressing member 10 is also enabled to go up and down, thus enabling the article 90 to be fixed on the fixed surface 80 strongly.

Description

  The present invention relates to a device for preventing a television or other article from falling, and more particularly to a tipping preventing device capable of firmly holding an article placed on a fixed surface.

  With the transition of terrestrial television broadcasting from analog to digital, digital television has become widespread, from public offices, private companies, educational institutions to general households. Most digital TVs that can receive digital terrestrial broadcasting have wide and thin screens (hereinafter referred to as flat-screen TVs), and they fall over when hit by an object or an earthquake occurs. Is concerned. For example, when an earthquake occurs, there is a concern that a flat-screen television may fall from the television stand and break down, or the fallen television may hit a person and be injured, leading to an unexpected situation. Japanese Patent Application Laid-Open No. 2004-228561 discloses a flat TV set for preventing overturning.

  The overturn prevention device for a flat television disclosed in Patent Document 1 has a T-shaped member made of resin at both ends of a belt-like belt, and an adhesive tape is provided on the surface of the T-shaped member. For example, by attaching one T-shaped member to the back of a flat TV and attaching the other T-shaped member to the top surface of the TV stand, the flat TV and the TV stand can be connected with a belt-like belt. The TV is prevented from falling down easily. That is, by using the flat TV tipping prevention device described in Patent Document 1, it is possible to suppress the occurrence of unforeseen circumstances such as a failure of a flat-screen TV and a user's injury.

JP 2006-304239 A

  However, in the flat TV fall prevention device disclosed in Patent Document 1, since the adhesive tape is used to connect the flat TV and the T-shaped member, the attachment and removal are performed several times by changing the attachment position or the like. There is a disadvantage that the adhesiveness is lowered only by repeating. In addition, the adhesive tape has an extremely weak adsorbing force as compared with fastening means such as a screw and may be easily detached, and there is a concern that the adhesive tape cannot play a role as a fall prevention device.

  In view of the above-described present situation, an object of the present invention is to provide a fall prevention device that can firmly hold an article placed on a fixed surface.

  The invention according to claim 1 for solving the above-mentioned problem is a tipping prevention device that holds an article placed on a fixed surface and prevents the article from falling, and a suction cup whose inner surface is adsorbed to the fixed surface; A suction cup holding member that is on the outer surface side of the suction cup and holds at least the vicinity of the outer edge of the suction cup at the time of suction of the suction cup, a lifting shaft that is joined to the central portion of the suction cup to raise and lower the central portion of the suction cup, the lifting shaft and the suction cup holding member, Engage and move the elevating shaft to move the suction cup holding member between the suction cup and the suction cup holding member and bias the suction cup holding member away from the suction cup. A biasing member and a pressing member having a contact portion attached to the suction cup holding member and in contact with the article, and operating the suction cup operating member with the inner surface side of the suction cup placed on the fixed surface, and a central portion of the suction cup Close to the suction cup holding member The suction cup holding member moves to the fixed surface side against the biasing member, and the pressing member can move to the fixed surface side together with the suction cup holding member to hold a part of the article. This is a fall prevention device.

  The overturn prevention device employed in the present invention has a mechanism capable of increasing the suction force of the suction cup. Specifically, the suction cup holding member "holds the vicinity of the outer edge of the suction cup at the time of suction" to press the vicinity of the outer edge of the suction cup against the fixed surface so that the suction cup is brought into close contact with the fixed surface. Air is blocked from entering. Then, the pressure between the fixed surface and the suction cup is made negative by “making the central portion of the suction cup close to the suction cup holding member” by the lifting shaft and the suction cup operation member. The fixed surface and the suction cup, which are under negative pressure, are firmly attached and do not easily come off.

Moreover, the fall prevention apparatus employ | adopted by this invention has a mechanism which can press and hold | maintain an article | item. More specifically, a pressing member that comes into contact with the article is attached to the suction cup holding member. The suction cup holding member is “moved to the fixed surface side against the biasing member” by the operation of the suction cup operation member. That is, when the suction cup operation member is operated to attach the suction cup to the fixed surface, the suction cup holding member sinks to the fixed surface side against the biasing member.
Here, since the pressing member is attached to the suction cup holding member, the pressing member moves to the fixed surface side as the suction cup holding member moves. As a result, “a part of the article can be held”.
For example, the base of a flat-screen television is generally plate-shaped. Therefore, for example, by installing the fall prevention device of the present invention in the vicinity of the base of a flat-screen TV, and then firmly sticking the suction cup to the fixed surface, the pressing member is placed on the base of the TV. The flat TV can be firmly fixed to the TV base (fixed surface) by holding the base of the flat TV with the pressing member.

  The invention according to claim 2 is the fall prevention device according to claim 1, wherein the pressing member is elastically fixed to the suction cup holding member.

  “Elasticly fixed” means that the pressing member can return to its original position and shape even if it moves, distorts, or deforms relative to the suction cup holding member. Show. As described above, the pressing member can hold the base of a thin television. In other words, when an earthquake or the like occurs, the pressing member is likely to receive a load from the base side of the flat-screen television. For example, a large thin TV has a weight of several tens of kilograms. Therefore, if it is not elastically fixed, when a large thin television is shaken, a load is directly applied to the suction cup holding member through the pressing member, and the suction cup may be detached. By elastically fixing the pressing member to the suction cup holding member, even when a large thin television is shaken, the load can be buffered by the pressing member, and the suction cup can be prevented from coming off. In addition, an effect of suppressing vibration of a flat-screen TV or the like can be expected.

  The invention according to claim 3 is characterized in that the pressing member has an upper abutting portion that holds the article from above and a side surface holding portion that holds the side surface of the article. It is a fall prevention device of description.

  The article placed on the fixed surface is likely to swing in both the vertical direction of the top and bottom and the horizontal direction of the left and right. In other words, the article placed on the fixed surface can be reliably held by holding the article with both the upper contact portion and the side surface holding portion.

  The invention according to claim 4 is the overturn prevention device according to any one of claims 1 to 3, wherein a part or all of the pressing member is made of an elastic member.

  By making a part or all of the pressing member from an elastic member, it is possible to increase the load that can be buffered by the pressing member. That is, the suction cup for fixing the article can be made more difficult to come off.

  According to a fifth aspect of the present invention, the pressing member has a contact portion that contacts the article, and the contact portion of the contact portion with respect to the article has a cushioning property. The fall prevention device according to any one of the above.

  Articles that can be held by the pressing portion have various heights. Therefore, in the pressing member, it is possible to hold articles of various heights by providing cushioning to the abutting portion that abuts the article. Higher vibration control effect can be expected.

  The invention according to claim 6 is the fall prevention device according to any one of claims 1 to 5, wherein the pressing member is rotatable with respect to the suction cup holding member.

The article placed on the fixed surface may be loaded in the rotational direction in addition to the vertical direction in the vertical direction and the horizontal direction in the horizontal direction. By making the pressing member pivotable with respect to the suction cup holding member, the load in the rotational direction can also be buffered.
Further, according to the present invention, since the pressing member can be rotated with respect to the suction cup holding member, the degree of freedom of the attachment position of the suction cup is high.

  According to a seventh aspect of the present invention, the suction cup holding member presses the vicinity of the outer edge of the suction cup against the fixed surface when the suction cup is attracted, and leaves the vicinity of the outer edge of the suction cup when the suction cup is not attracted. The fall prevention device according to any one of the above.

As described above, the article can be firmly fixed to the fixing surface by firmly adhering the fixing surface and the suction cup. However, the suction cup cannot be easily removed as it is, and it becomes difficult to move the article. That is, a sucker that is easy to remove as needed is more convenient.
The fall prevention device of the present invention can increase or decrease the suction force of the suction cup, firmly fix the article, and easily remove it as necessary.
Moreover, since the fall prevention apparatus of this invention has the large movement margin of a suction cup holding member and the movement amount of a press member is large, it is easy to hold down articles | goods.

  According to the fall prevention device of the present invention, the article placed on the fixed surface can be firmly held.

BRIEF DESCRIPTION OF THE DRAWINGS The fall prevention apparatus which concerns on embodiment of this invention is shown, (a) is a front view, (b) is a perspective view. It is a disassembled perspective view of the fall prevention apparatus of FIG. It is a front view explaining the adhesive resin which the fall prevention apparatus of FIG. 1 has, and the inside of a circle is the one part enlarged view. It is a front view which shows operation | movement of the fall prevention apparatus of FIG. 1, (a) is a non-adsorption state, (b) is an adsorption state. It is a front view which shows the function of the press member which the fall prevention apparatus of FIG. 1 has. It is an Example using the fall prevention apparatus of the apparatus which concerns on embodiment of this invention, and is a perspective view which shows the state which attached the fall prevention apparatus to the right and left of the base of a thin-screen television. It is an Example using the device overturn prevention device concerning the embodiment of the present invention, and is a perspective view showing the state where the overturn prevention device was attached before and after the base of a thin television.

  In the following, an embodiment of the device overturn prevention device of the present invention will be described in detail with reference to the drawings. In addition, the following description is for facilitating the understanding of the embodiment, and the present invention should not be understood to be limited thereby. In addition, description is abbreviate | omitted about a well-known thing.

As shown in FIGS. 1 (a) and 1 (b), the fall prevention device 1 has a substantially bowl-like outer shape.
The fall prevention device 1 includes a housing (suction cup holding member) 2, a suction cup 3, and a pressing member 10 that can support an article as main components.

  As shown in FIG. 2, first, the configuration around the housing 2 and the suction cup 3 will be described. Around the housing 2 and the suction cup 3, a lifting shaft 4 that can lift and lower the suction cup 20 and an operation lever that can operate the lifting shaft 4. There are a (suction cup operation member) 5, a spring (biasing member) 6 that biases the housing 2 in a direction away from the suction cup 3, and pins 8 and 9. The suction cup 20 is composed of the suction cup body 3 and the adhesive resin 7.

  As shown in FIG. 2, the housing 2 includes a main body 2 a serving as a frame and covers 2 b and 2 c. A central hole 2c is provided in the main body 2a.

  The suction cup body 3 is a deformable disk member. The suction cup body 3 has a center hole 3a. The suction cup body 3 is preferably made of a flexible material such as silicon resin.

  The elevating shaft 4 is a rod-like member capable of pulling the suction cup 20 (the suction cup body 3 and the adhesive resin 7). The elevating shaft 4 has a hole 4a on one end side and a flange portion 4b on the other end side.

The operating lever 5 is a knob member that can move the lifting shaft 4 up and down. The operation lever 5 has a substantially triangular cam-like portion 5c in front view. The operation lever 5 is provided with a hole 5a in the cam-like portion 5c. As shown in FIG. 4, the distance between the apex 5d of the cam-like portion 5c and the hole 5a is longer than the distance between one side 5e of the cam-like portion 5c.
Moreover, it has the lever main body 5b which a user operates with a finger.

  The spring 6 desirably has an urging force that urges the housing 2 in a direction away from the suction cup 20.

The adhesive resin 7 is a gel-like resin and has adhesiveness and shape retention. The adhesive resin 7 has a sticky tactile sensation and a sticky tactile sensation.
As shown in FIG. 3, the adhesive resin 7 can enter the concave portion 81 and the convex portion 82 even if the fixing surface 80 has irregularities. In other words, it may be considered that the shape of the concave portion 81 and the convex portion 82 of the fixed surface 80 can be embossed on the surface of the adhesive resin 7 like embossing. For example, when an eraser shaving powder or the like adheres to the adhesive resin 7, the shaving powder is buried in the adhesive resin 7.

Here, the positional relationship between the structural members around the housing 2 and the suction cup 20 will be described.
A pin 9 is communicated with the central hole 7 a of the adhesive resin 7. The pin 9 is locked to the flange portion 4b of the elevating shaft 4 with the suction cup 20 interposed therebetween. Airtightness is ensured between the pin 9 and the adhesive resin 7. Further, the pin 9 and the flange portion 4b of the lifting shaft 4 are inseparably joined together by an adhesive (not shown).
The lifting shaft 4 passes through the center hole 3 a of the suction cup body 3, the spring 6, and the center hole 2 d of the housing 2. On the other hand, the end of the lifting shaft 4 on the side of the hole 4 a protrudes from the center hole 2 d of the housing 2 to the outside of the housing 2. An operation lever 5 is inserted into the end of the elevating shaft 4 on the hole 4a side. Both the elevating shaft 4 and the operation lever 5 are connected by a pin 8.
That is, the hole 4a of the lifting shaft 4 and the hole 5a of the operation lever 5 are positioned so as to be concentric, and the pin 8 is communicated with the hole 4a and the hole 5a. That is, the suction cup 20 and the spring 6 are connected to the housing 2 by the lifting shaft 4.

Further, the operation of the suction cup 20 by the operation lever 5 will be briefly described.
As shown in FIG. 4A, when the lever body 5b of the operation lever 5 is in the vertical direction, the suction cup 20 is in a substantially flat state and is not deformed.
At this time, the pin 8 is close to the upper part of the housing 2, and the main body 2 a of the housing 2 is urged by the spring 6 in a direction (upward) away from the suction cup 20. In this state, the lower surface 2e of the peripheral end portion of the housing 2 is separated from the peripheral end portion 3b on the outer surface side of the suction cup 20.

As shown in FIG. 4B, when the lever body 5b is lowered in the horizontal direction, the suction cup 20 is in the suction state. That is, when the lever main body 5b is lowered in the horizontal direction, the apex 5d of the cam-like portion 5c comes into contact with the housing 2. Here, since the distance to the hole 5a is longer than the distance of one side 5e of the cam-like portion 5c, when the lever body 5b is lowered in the horizontal direction, the position of the hole 5a rises, and the elevating shaft 4 moves to the operating lever. Pulled by 5 and rises. That is, the operation lever 5 has a cam function, and the position of the pin 8 is raised in the vertical direction.
At this time, the main body 2a of the housing 2 is pushed downward by the cam mechanism of the operation lever 5, and the main body 2a presses the suction cup 20 toward the fixed surface 80 side. At this time, the lower surface 2e of the peripheral end portion of the housing 2 is in contact with the peripheral end portion 3b on the outer surface side of the suction cup 20, and holds the vicinity of the outer edge of the suction cup 20 (the peripheral end portion 3b).

  Moreover, the suction cup main body 3 and the adhesive resin 7 are deformed so as to form a mountain shape. The space formed between the fixed surface 80 and the suction cup 20 is in a decompressed state. That is, the decompressed space has an adsorption force that firmly adsorbs the fixed surface 80.

A configuration around the pressing member 10 will be described.
As shown in FIGS. 1A, 1 </ b> B, and 2, the pressing member 10 includes an abutting portion 11 that abuts against an article, and connecting portions 14 and 19 for fixing the abutting portion 11 to the housing 2. , A spring 17 and a screw 18.

The contact portion 11 includes an upper contact portion 12 that holds the article from above and a side surface holding portion 13 that holds the side surface of the article.
The upper contact portion 12 is a circular cushion member. The side surface holding part 13 is a substantially rectangular cushion member. The upper contact portion 12 and the side surface holding portion 13 are preferably made of a material such as an elastomer.

The connecting portion 14 is a substantially U-shaped plate member in a side view, and includes a fixed side 15 and a movable piece 16. Similarly, the connecting part 19 is also a plate member.
It is preferable to comprise the connection parts 14 and 19 with the metal material which has elasticity.

Here, the positional relationship between the constituent members around the pressing member 10 will be described.
As shown in FIGS. 4A and 4B, in the pressing member 10, the upper contact portion 12 is arranged so that the circular surface faces the fixed surface 80, and It is attached to the housing 2 via the movable piece 16. On the other hand, the side surface holding portion 13 is disposed so as to abut on the side surface of the article 90 and is attached to the housing 2 via the connecting portion 19.
That is, the side surface holding portion 13 is located below the upper contact portion 12 and is closer to the housing 2 than the winning upper contact portion 12.

  A spring 17 is disposed between the fixed side 15 and the movable piece 16. A screw 18 passes through the fixed side 15, the movable piece 16, and the spring 17. The screw 18 is attached to the housing 2.

Furthermore, the function of the upper contact portion 12 will be described.
As described above, the upper contact portion 12 is attached to the housing 2 via the movable piece 16. A spring 17 is disposed between the movable piece 16 and the fixed side 15. That is, as shown in FIG. 5, the upper contact portion 12 has a configuration that can move upward. For example, when the upper contact portion 12 receives a load from an article or the like, the movable piece 16 and the spring 17 can function as a damping device to attenuate the load.

Operation | movement of the fall prevention apparatus 1 provided with the suction cup 20 and the press member 10 is demonstrated.
FIG. 4 shows the operating state of the overturn prevention device 1, wherein (a) shows a non-adsorbing state and (b) shows an adsorbing state.

  In FIG. 4A, the fall prevention device 1 is disposed directly beside the article 90. At this time, the suction cup 20 is in an adsorbing state, the upper contact portion 12 is directly above the article 90, and the side surface holding portion 13 is located on the side surface of the article 90.

  In FIG.4 (b), the suction cup 20 exists in the adsorption | suction state, and as mentioned above, the main body 2a of the housing 2 is pressing the suction cup 20 to the fixed surface 80 side. That is, the main body 2a is closer to the fixed surface 80 side than the position of FIG. Along with the proximity of the main body 2a, the upper contact portion 12 connected to the housing 2 is also close to the article 90 side. As a result, the upper contact portion 12 firmly supports the article 90 with respect to the fixed surface 80.

Next, an embodiment using the fall prevention device 1 is shown in FIGS.
6 and 7 show a state in which the base 51 of the thin television 50 and the fixed surface 61 of the television base 60 are connected by the fall prevention device 1.
In FIG. 6, two fall prevention devices 1 are used and the left and right ends of the base 51 are supported.
In FIG. 7, two fall prevention devices 1 are also used, and the front and rear ends of the base 51 are supported.
6 and 7, the base 51 of the thin television 50 is firmly fixed to the fixing surface 61 of the base 60 by the fall prevention device 1.

1 Fall prevention device 2 Housing (suction cup holding member)
3 Suction cup body 4 Elevating shaft 5 Operation lever (suction cup operation member)
6 Spring (biasing member)
DESCRIPTION OF SYMBOLS 10 Press member 11 Contact part 12 Upper contact part 13 Side surface holding part 20 Suction cup 80 Fixed surface 90 Article

Claims (7)

  In the overturn prevention device for holding the article placed on the fixed surface and preventing the article from toppling over, a suction cup whose inner surface side is attracted to the fixed surface, and an outer edge side of the suction cup, at least near the outer edge of the suction cup when sucked A suction cup holding member which holds the suction cup, a lifting shaft which is joined to the central portion of the suction cup and lifts the central portion of the suction cup, and engages with the lifting shaft and the suction cup holding member to move the lifting shaft to hold the central portion of the suction cup. A suction cup operating member that moves close to and away from the member, a biasing member that is between the suction cup and the suction cup holding member and biases the suction cup holding member in a direction away from the suction cup, and a contact that is attached to the suction cup holding member and contacts the article When the suction cup operating member is operated by placing the inner surface side of the suction cup on the fixed surface and the central portion of the suction cup is brought close to the suction cup holding member, the suction cup holding member is Fixed surface side against the force member Overturning prevention device, wherein the moving the pressing member is able to retain part of the article moving on the fixed side with sucker holding member.   The overturn prevention device according to claim 1, wherein the pressing member is elastically fixed to the suction cup holding member.   The overturn prevention device according to claim 1, wherein the pressing member includes an upper contact portion that presses the article from above and a side surface holding portion that holds a side surface of the article.   The fall prevention device according to any one of claims 1 to 3, wherein a part or all of the pressing member is made of an elastic member.   5. The overturn prevention device according to claim 1, wherein the pressing member has a contact portion that contacts an article, and the contact portion of the contact portion with respect to the article has a cushioning property.   6. The overturn prevention device according to claim 1, wherein the pressing member is rotatable with respect to the suction cup holding member.   The fall prevention device according to any one of claims 1 to 6, wherein the suction cup holding member presses the vicinity of the outer edge of the suction cup against the fixed surface when the suction cup is attracted, and leaves the vicinity of the outer edge of the suction cup when the suction cup is not attracted. .

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