JP5002184B2 - Valve device - Google Patents

Description

  The present invention relates to a valve device attached to, for example, an opening formed in a sealed bag body for containing a futon, and more specifically, the bag body is decompressed by suction from the outside in an open state. The present invention relates to a valve device that is deflated and maintains pressure in the bag in a closed state.

As the valve device described above, the valve body is provided in the valve frame body attached to the opening of the bag body so as to be movable inward and outward, and the valve body is pressed inward to close the air passage. The closed state can be held by the lock mechanism, while the closed state by the lock mechanism is released, and the suction port of the intake nozzle of the vacuum cleaner is brought into contact with the valve frame to suck it. The thing of the structure which can be made into an open state by sucking a valve body outside and separating from an air passage is known (for example, refer to patent documents 1).
JP 2004-338784 A

  By the way, the locking mechanism is configured to rotate the locking rotation member with respect to the valve frame in a direction orthogonal to the inner and outer directions, so that it is difficult to operate with one hand. It was. This will be described in more detail below. That is, when the rotation member for locking is rotated with one hand, the soft bag body provided with the valve frame is easily deformed, the valve frame is rotated, and the rotation member is rotated. It becomes difficult. On the other hand, in order to reliably rotate the rotation member, it is necessary to hold the valve frame to prevent the rotation of the valve frame. In this case, both hands are used for the rotation operation of the rotation member. There is an inconvenience that it is impossible to operate with one hand. Furthermore, the bag body may be damaged as the above-described deformation of the bag body is repeatedly performed.

  The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a valve device having a lock mechanism that can be easily operated with one hand.

The valve device according to claim 1 of the present invention is attached to a valve mounting hole provided in a sealable bag body, and has an air passage hole for taking air into and out of the bag body and the air passage. A valve frame having a receiving surface for a valve body around the hole; a valve body provided so as to be able to come into contact with and away from the receiving surface; and a large radius portion that presses the valve body against the receiving surface to close the valve And a cam part formed with a small radius part which is separated from the valve body and is allowed to open the valve on one end side, and the cam part is in a desired angle range along with the undulation of the operation part on the other end side. A lever that is supported by the valve frame body so as to rotate inside and at least in a sideways state when the valve is closed , the valve frame body rotatably supports the cam portion and the sideways sideways. Has an opening for receiving the lever in the state, and Opening portion has a structure which extends to the outer edge portion of the valve frame, said valve member by suction by suction nozzles from the outside of the valve frame in the open permissive opens away from said receiving surface It is set as a valve state.

  The valve device according to a second aspect of the present invention is the valve device according to the first aspect, wherein the valve frame body is disposed on the inner side of the bag body and on the outer side of the bag body. An outer valve frame is connected to the outer valve frame through the valve mounting hole.The inner valve frame is provided with the receiving surface, and a valve body mounting portion is provided on the outer peripheral portion of the receiving surface toward the outer valve frame. The valve body is formed so as to protrude, the valve body is provided inside the valve body mounting portion so as to be able to contact and separate from the receiving surface, and the lever is provided on the outer valve frame body.

  The valve device according to a third aspect of the present invention is the valve device according to the first or second aspect, wherein the valve body has a valve body main body on the receiving surface side and the valve body on the cam portion side. It has the press board which presses a main body uniformly to this receiving surface, It is characterized by the above-mentioned.

  A valve device according to a fourth aspect of the present invention is the valve device according to the third aspect, wherein an annular convex portion is formed on the valve body body side of the receiving surface or on the receiving surface side of the valve body body, and A second annular convex portion is formed on the pressing plate in a positional relationship corresponding to the annular convex portion.

  In the case of the present invention, when the other end side of the lever is raised and lowered and the small radius portion of the cam portion is aligned with the valve body, the cam portion is separated from the valve body and is allowed to open, and suction is performed from the outside in that state. By doing so, the valve body is separated from the receiving surface and is opened. On the other hand, when the large radius portion of the cam portion is aligned with the valve body, the cam portion presses the valve body against the receiving surface and the valve is closed. And since such a valve opening permission state and a valve closing state are performed by the raising / lowering operation of the other end side of the lever, the lever can be raised / lowered with a finger of the hand while holding the valve frame with the hand. For this reason, it is not necessary to use both hands so that the valve frame does not rotate as in the prior art, and it is possible to easily operate with one hand, and the operability is greatly improved. In addition, since the valve frame does not rotate even if it is operated with one hand, it is possible to prevent the bag from being deformed and to prevent the bag from being damaged.

  According to the second aspect of the present invention, a valve body is provided in the valve body mounting portion of the inner valve frame body, and a lever is provided in the outer valve frame body, and a peripheral portion of the valve mounting hole between these two valve frame bodies. The valve device as a whole can be easily configured by connecting both the valve frame bodies so that the cam portions are positioned on the valve bodies.

  In the case of the invention according to claim 3, since the valve body has a pressure plate that uniformly presses the valve body main body on the receiving surface side and the valve body main body on the cam portion side on the receiving surface side, in all directions of the receiving surface A close contact state without a gap between the valve body main body and the receiving surface can be achieved, and the valve closing state becomes more reliable.

  In the case of the invention of claim 4, the second annular convex portion presses the annular portion where the receiving surface or the valve body main body and the annular convex portion are in close contact with each other, It is possible to reliably eliminate the gap between the receiving surface.

  The present invention will be specifically described below.

  1A and 1B are drawings showing a valve device according to an embodiment of the present invention, wherein FIG. 1A is a plan view showing the valve device, FIG. 1B is a cross-sectional view taken along line AA in FIG. These are sectional drawings by the BB line of (a). FIG. 2 is an external view showing a bag body to which the valve device of FIG. 1 is attached.

  A bag body 2 shown in FIG. 2 is an object to be attached to which the valve device shown in FIG. 1 is attached, is formed in a rectangular shape, has a valve attachment hole 3 formed on the surface used as an upper side, and a futon or cushion on one side. For example, a zipper 5 is provided as an opening 4 for taking in and out stored items and an opening / closing tool for opening and closing the opening 4. The zipper 5 is indicated by a broken line. The valve device 1 according to this embodiment is attached to the valve attachment hole 3.

  The valve device 1 includes a valve frame body 10 attached around the valve mounting hole 3, a valve body 20 provided inside the valve frame body 10, and a lever 30 for operating the valve body 20. However, the whole is made of a synthetic resin.

  The valve frame body 10 is configured by connecting an inner valve frame body 11 disposed on the inner side of the bag body 2 and an outer valve frame body 12 disposed on the outer side of the bag body 2 through a valve mounting hole 3. Inside the frame body 10, an air passage hole 13 for taking air in and out of the bag body 2 is provided. The air passage hole 13 communicates with the valve mounting hole 3.

  A valve body receiving surface 14 is formed in an annular region on the outer peripheral edge of the air passage hole 13. A valve body 20 is provided on the upper side of the receiving surface 14, and the valve body 20 is pressed downward by a cam portion 31 of a lever 30 provided on the valve frame body 10 so as to be swingable around a horizontal axis. And a valve-opening-permitted state that enables upward movement.

  3A is a plan view of the inner valve frame 11, and FIG. 3B is a bottom view thereof. The inner valve frame 11 is formed such that a radial protrusion 11b protrudes downward from a circular plate 11a formed in a circular shape in plan view, and the air passage hole 13 is formed at the center of the circular plate 11a. Is formed. In the present embodiment, four types of projections 11b are formed, and one type of projection 11b-1 is formed by shifting 90 ° from the center of the disk 11a. That is, it is formed in a cross shape, and the center side of each protrusion 11 b-1 passes below the air passage hole 13. The other type of projection 11b-2 is shorter than the projection 11b-1, and has an end on the center side connected to an annular portion 11c having a smaller diameter than the air passage hole 13, and the adjacent projection 11b-1. Two are formed in between. Further, another type of protrusion 11b-3 is shorter than the protrusion 11b-2, and one protrusion 11b-3 is adjacent between the adjacent protrusions 11b-1 and 11b-2 or between adjacent protrusions 11b-2. Is formed. Further, the other type of protrusion 11b-4 is shorter than the protrusion 11b-3, and one protrusion 11b-4 is formed between adjacent ones other than the protrusion 11b-4.

  The plurality of protrusions 11b are formed in order to prevent the air passage hole 13 from being blocked by the contents accommodated in the bag body 2, and to easily and reliably carry out the air in and out of the air passage hole 13. In addition, the space between adjacent protrusions 11b functions as an air passage.

  On the upper side of the disk 11a, an annular valve body mounting portion 11d is formed concentrically with the air passage hole 13, and the inner side of the valve body mounting portion 11d is the receiving surface 14. An annular convex portion 14 a is formed on the upper surface of the receiving surface 14. On the other hand, engagement pieces 11e are formed at four locations outside the valve body attaching portion 11d.

  As shown in FIG. 1, the outer valve frame 12 is formed in a substantially disk shape, and has an outer skin 12 a that functions as an upper surface, and an outer periphery 12 b of the outer skin 12 a is formed so as to protrude downward. A protrusion 12c that contacts the valve body mounting portion 11d and a pressing piece 12d are partially formed on the lower side of the valve frame body 12, and a downward engagement piece is provided at a lower position corresponding to the engagement piece 11e. 12e is formed.

  The outer valve frame 12 has an outer periphery 12b in contact with the outer periphery of the disc 11a of the inner valve frame 11, and a projection 12c and a pressing piece 12d in contact with the valve body mounting portion 11d, and an engagement piece. 12e is engaged with the inner valve frame 11 by engaging the engaging pieces 11e with the claws. The peripheral edge of the valve mounting hole 3 of the bag 2 is sandwiched between the outer periphery 12b of the outer valve frame 12 and the outer periphery of the disc 11a of the inner valve frame 11.

  A circular positioning portion 12f for positioning the suction port 51 of the suction nozzle 50 of the vacuum cleaner is formed on the outer skin 12a so as to protrude upward, and a plurality of positioning portions 12f, four in the example shown in FIG. Two air passage through holes 12i are provided. The diameter of the positioning portion 12 f is set to a dimension corresponding to the inner diameter of the suction port 51. The outer skin 12a has an opening with a constant width, and a lever 30 is swingably attached to the inside of the opening.

  The lever 30 has a cam portion 31 formed on one end side, and the other end side functions as an operation portion 32. Support shafts 33 are formed on both sides of the cam portion 31 so as to protrude in the horizontal direction. 33 is pivotally supported by a bearing portion 12g provided inside the outer skin 12a of the outer valve frame 12 so that the lever 30 can swing.

  The pressing pieces 12d are positioned at both limit positions of the swinging range of the lever 30, and the lever 30 can be swung within an angular range in contact with the upper surface 12h of each pressing piece 12d. Yes.

The cam portion 31 is formed with a large radius portion 31 a that presses the valve body 20 against the receiving surface 14, and a small radius portion 31 b that allows the valve body 20 to be separated from the receiving surface 14. Therefore, it is possible to adjust the angle of the cam portion 31 with respect to the valve body 20 by raising and lowering the operation portion on the other end side, that is, swinging the support shaft 33 around the support shaft 33. Specifically, as shown in FIG. 4A, when the lever 30 is in contact with the upper surface 12h of one holding piece 12d (the left side in the figure), that is, when the operating portion 32 is in the sideways state lying down on the left side, radius portion 31b is in a state of the above direction. On the contrary, as shown in FIG. 4B, when the lever 30 is in contact with the upper surface 12h of the other pressing piece 12d (the right side in the figure), that is, when the operating portion 32 is in the sideways state lying down on the right side, the small radius portion 31b is in a state of under-facing.

  As shown in FIG. 1, the valve body 20 is provided on the inner side of the valve body mounting portion 11 d and includes a valve body main body 21 and a pressing plate 22.

  As shown in FIG. 5, the valve body 21 is formed in a substantially equilateral triangle shape in plan view, and the long radius portion 21 a is set to have substantially the same size as the inner radius of the valve body mounting portion 11 d, and the valve body mounting portion The air passage hole 13 is configured to be lifted up and down guided by 11d, lowered and in contact with the annular convex portion 14a. The short radius portion 21b of the valve body 21 functions as an air passage when the valve body 21 is separated from the annular convex portion 14a, that is, in a raised state.

  The upper pressing plate 22 uniformly presses the valve body 21 against the annular convex portion 14a of the receiving surface 14, and a circular portion 22b is connected to the outer end of the radial skeleton portion 22a as shown in FIG. In the configuration, six hollow portions 22c are provided between adjacent skeleton portions 22a. These hollow portions 22c function as air passages.

  Second annular convex portions 22d and 22e are provided on the upper and lower surfaces of the pressing plate 22 in a positional relationship corresponding to the annular convex portion 14a. The second annular convex portion 22d is on the upper surface side, and the second annular convex portion 22e is on the lower surface side. The upper second annular convex portion 22d and the lower second annular convex portion 22e are connected to each other at the cavity portion 22c.

  As described above, the valve body 21 is provided so as to be able to contact and separate from the receiving surface 14, more specifically, the annular convex portion 14 a, and the small radius portion 31 b of the cam portion 31 is moved by swinging the lever 30. When the pressing plate 22 is pressed downward by the large radius portion 31a in the upward direction, the valve body 21 comes into contact with the annular convex portion 14a, and the air flow in the air passage 13 is blocked. As a result, the valve is closed. On the other hand, when the lever 30 is swung so that the small radius portion 31b of the cam portion 31 faces downward and the cam portion 31 is separated from the pressing plate 22, the valve body 21 is opened against the annular convex portion 14a by its own weight. The valve is allowed. And in this valve opening permission state, as shown in FIG.1 (b), if the suction inlet 51 of the suction nozzle 50 of a vacuum cleaner is made to contact | abut to the circular positioning part 12f and it aspirates, the valve body main body 21 will become an annular convex part. The valve floats up from 14a and opens, and the air inside the bag body 2 is sucked. The sucked air is guided by the radial projections 11b and guided to the air passage hole 13, and directly through the gap between the short radius portion of the valve body 21 and the valve body mounting portion 11d, or the cavity of the pressing plate 22 It is sent to the through hole 12i of the circular positioning portion 12f via the portion 22c and moves to the intake nozzle 50.

  Thereafter, when the suction is finished and the suction port 51 is separated from the circular positioning portion 12f, the inside of the bag body 2 is in a negative pressure, so that the valve body 21 comes into contact with the annular convex portion 14a, and the bag The outside air is prevented from entering the inside of the body 2, and the internal pressure of the bag body 2 is kept constant. Thereafter, when the lever 30 is swung so that the small radius portion 31b of the cam portion 31 faces upward and the pressing plate 22 is pushed downward by the large radius portion 31a, the valve body 21 remains in contact with the annular convex portion 14a. Will be locked.

  Therefore, in the case of this embodiment, the air flow / blocking in the air passage hole 13 is performed by swinging the lever 30, that is, by the raising / lowering operation of the other end side operation portion 32 of the lever 30. The lever 30 can be raised and lowered with the fingers of the hand while holding the valve frame 10 from above, so that it is not necessary to use both hands so that the valve frame does not rotate as in the prior art, and it can be easily performed with one hand. It becomes possible to operate, and the operability is greatly improved. In addition, since the valve frame 10 does not rotate even if it is operated with one hand, the bag 2 is hardly deformed and the bag 2 can be prevented from being damaged.

  In the present embodiment, the valve body 20 is provided in the valve body mounting portion 11d of the inner valve frame body 11 and the lever 30 is provided in the outer valve frame body 12, so The entire valve device 1 can be easily configured by sandwiching the peripheral edge of the valve mounting hole 3 and connecting the valve frame bodies 11 and 12 so that the cam portion 31 is positioned on the valve body 20. . Further, since the valve body 20 has the valve body main body 21 on the receiving surface 14 side and the pressing plate 22 that uniformly presses the valve body main body 21 on the receiving surface 14 on the cam portion 31 side, in all directions of the receiving surface 14 A close contact state without a gap between the valve body 21 and the receiving surface 14 can be achieved, and the valve closing state becomes more reliable. Furthermore, the second annular convex portion 22d presses the annular portion where the valve body 21 and the annular convex portion 14a are in close contact with each other, and the valve body main body 21 and the receiving surface 14 in all directions of the receiving surface 14 described above are pressed. It is possible to reliably eliminate the gap between them.

  In addition, in embodiment mentioned above, although the shape of the valve body main body 21 is made into the regular equilateral triangle by planar view, this invention is not limited to this. The valve closed state can be secured inside the portion that contacts the annular convex portion 14a, and the air passage and the guidance by the valve body mounting portion can be secured outside the portion that contacts the annular convex portion 14a. And may be a polygonal shape such as a substantially regular tetragon or a substantially regular pentagon in plan view. Or it is good also as polygons, such as a triangle, a quadrangle | tetragon, or a pentagon, not only in the shape where a vertex exists in an equal position with respect to the center. Furthermore, it may be a circular one that enters the valve body attaching portion, and a through hole for an air passage may be formed outside a portion that contacts the annular convex portion 14a.

  In the above-described embodiment, the annular valve body attaching portion 11d is used as a means for guiding the valve body, but the present invention is not limited to this. For example, you may use the annular valve body attaching part etc. which have a rectangular cavity with a horizontal cross section. In this case, the shape of the valve body is also adjusted. Furthermore, in the case of using a valve body body in which a through hole for an air passage is formed outside the portion that contacts the annular convex portion, the valve body mounting portion may not be annular, for example, the annular portion It may be intermittent with a part of the cutout.

  Furthermore, in the above-described embodiment, the lever is laid down by raising and lowering from the side to the opposite side, but the present invention is not limited to this. For example, when locking in a valve-closed state, it is preferable that the bag body is placed on its side in consideration of stacking and storing in a push-in state, etc. You may make it stand in the standing state which stood up vertically. In this case, the swing angle of the lever can be regulated by setting the opening to a half length with a constant width provided in the outer skin 12a and making the lever hit the end of the opening.

  Furthermore, in the above-described embodiment, the large radius portion of the cam portion provided on one end side of the lever is configured to have a constant dimension over the entire region other than the small radius portion, but the present invention is not limited to this. You may make it provide the middle radius part which becomes so long as it approaches the small radius part on both sides of the large radius part of a cam part. Further, when the lever is provided so as to be able to swing between the sideways state and the standing state, it is required to adjust the positional relationship between the large radius portion and the small radius portion.

  Furthermore, in the embodiment described above, the annular convex portion is provided on the receiving surface. However, the present invention is not limited to this, and the annular convex portion may be provided on the lower surface side of the valve body.

  Furthermore, in the above-described embodiment, the annular convex portion and the valve body main body (or the receiving surface when the annular convex portion is provided on the lower surface side of the valve body main body) are brought into contact with and separated from each other to be in a valve open / closed state. However, the present invention is not limited to this, and the sealing member may be provided between the valve body and the receiving surface to omit the annular convex portion. In the case of this configuration, the pressing plate may be omitted.

It is drawing which shows the valve apparatus which concerns on one Embodiment of this invention, (a) is a top view which shows the valve apparatus, (b) is sectional drawing by the AA line of (a), (c) is (a) It is sectional drawing by the BB line of FIG. It is an external view which shows the bag body to which the valve apparatus of FIG. 1 is attached. (A) is a top view of an inner side valve frame, (b) is the bottom view. (A) is a front view which shows the state which laid down the lever in the valve closing state, (b) is a front view which shows the state which laid down the lever in the valve opening permission state. It is a top view which shows a valve body main body and a valve body attaching part. (A) is a top view which shows a press board, (b) is the front view, (c) is the front sectional drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Valve apparatus 2 Bag body 3 Valve mounting hole 10 Valve frame body 11 Inner valve frame body 11d Valve body mounting part 12 Outer valve frame body 13 Air passage hole 14 Receiving surface 14a Annular convex part 20 Valve body 21 Valve body main body 22 Pressure plate 22d, 22e 2nd annular convex part 30 Lever 31 Cam part 31a Large radius part 31b Small radius part

Claims (4)

A valve which is attached to a valve mounting hole provided in a sealable bag body, has an air passage hole for taking air into and out of the bag body, and has a valve body receiving surface around the air passage hole. A frame,
A valve body provided so as to be able to contact and separate from the receiving surface;
One end side has a cam portion formed with a large radius portion that presses the valve body against the receiving surface to close the valve body and a small radius portion that leaves the valve body and allows the valve to open. A cam portion is supported by the valve frame body so as to rotate within a desired angle range in accordance with the undulation of the operation portion on the other end side, and includes a lever that is at least lying down in a closed state ;
The valve frame body rotatably supports the cam portion and has an opening portion in which the sideways lever is accommodated, and the opening portion extends to an outer edge portion of the valve frame body in a plan view. It has a configuration that exists,
The valve device according to claim 1, wherein the valve body is separated from the receiving surface and opened by suction by an intake nozzle from the outside of the valve frame body in the valve opening allowed state.
The valve device according to claim 1,
The valve frame body is configured by connecting an inner valve frame body disposed on the inner side of the bag body and an outer valve frame body disposed on the outer side of the bag body through the valve mounting hole. The receiving surface is provided, and a valve body mounting portion is formed on the outer peripheral portion of the receiving surface so as to project toward the outer valve frame body. The valve body is located on the inner side of the valve body mounting portion with respect to the receiving surface. A valve device characterized in that the lever is provided on an outer valve frame body. The valve device according to claim 1 or 2,
The valve device has a valve body main body on the receiving surface side and a pressing plate that uniformly presses the valve body main body against the receiving surface on the cam portion side. The valve device according to claim 3,
An annular convex portion is formed on the valve body main body side of the receiving surface or the receiving surface side of the valve body main body, and a second annular convex portion is formed on the pressing plate in a positional relationship corresponding to the annular convex portion. A valve device characterized by that.

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