WO2009054578A1

WO2009054578A1 - Up and down sliding type clip device for vinyl bag

Info

Publication number: WO2009054578A1
Application number: PCT/KR2008/001787
Authority: WO
Inventors: Soon-Lee Juen
Original assignee: Soon-Lee Juen
Priority date: 2007-10-24
Filing date: 2008-03-31
Publication date: 2009-04-30
Also published as: KR20090003944U

Abstract

The present invention relates to a vertical sliding type clip device for sealing plastic bags, and more particularly, to such a vertical sliding type clip device for sealing plastic bags, which seals an opened plastic bag having the unused portions of contents such as food and the like contained therein so as to stably store the contents contained in the bag for a long time period. The vertical sliding type clip device for sealing plastic bags of the present invention comprises: a base member; a cover member disposed on the base member; a lifting and lowering section interposed between the base member and the cover member and adapted to lift and lower the cover member to allow a plastic bag to be inserted between the base member and the cover member; and a locking section adapted to couple the base member and the cover member to each other.

Description

UP AND DOWN SLIDING TYPE CLIP DEVICE FOR VINYL

BAG

Technical Field

[1] The present invention relates to a vertical sliding type clip device for sealing plastic bags, and more particularly, to such a vertical sliding type clip device for sealing plastic bags, which seals an opened plastic bag having the unused portions of contents such as food and the like contained therein so as to stably store the contents contained in the bag for a long time period. Background Art

[2] FIG. 1 is a perspective view showing a conventional closure for flexible bags, and

FIG. 2 is a cross-sectional view showing the closure for flexible bags of FIG. 1 (see U.S. Patent No. 3,141,221).

[3] As shown in FIGs. 1 and 2, the closure for flexible bags includes an inner bar 12 taking the shape of an elongated rod, and a holder 13 for wrapping the inner bar 12.

[4] The holder 13 has a fitting groove formed longitudinally on the arcuate inner surface thereof.

[5] Thus, the holder 13 is formed in a 'C'-shape in cross-section as shown in FIG. 2.

[6] A method of sealing a flexible bag B using such a closure clip device includes placing the inner bar 12 at a neck portion adjacent to an entrance opening of the flexible bag B, and then folding the neck portion of the flexible bag B so as to wrap the inner bar 12.

[7] In this state, as shown in FIG. 2, the holder 13 is wrappingly fit around the inner bar

12 with the neck portion of the flexible bag B impinged therebetween.

[8] An alternate sealing method includes fixing the inner bar 12 to the holder 13 in such a fashion that the inner bar is not moved, and then slidingly pressing the holder 13 while abutting against the inner bar 12 in a state of folding the neck portion of the flexible bag B so as to allow the flexible bag B to be interposed between the inner bar 12 and the holder 13.

[9] In this case, since the holder 13 has the arcuate fitting groove formed on the inner surface thereof, the flexible bag B is engagingly interposed between the inner bar 12 and the holder 13 through the fitting groove and the entrance opening of the flexible bag B is exposed to the outside of the holder 13.

[10] Since the neck portion adjacent to the entrance opening of the flexible bag B is press- fit between the holder 13 and the inner bar 12, the entrance opening of the flexible bag is temporarily sealed. [11] In this case, the holder 13 or inner bar 12 may include protrusions formed on the inner or outer surface thereof so as to further press the flexible bag B.

[12] However, this conventional closure clip device entails a problem in that since a user must fit the holder onto the inner bar with one hand while simultaneously grasping the inner bar and the flexible bag B wrapped on the same with the other hand, it is not easy to insert or remove the flexible bag B into or from the clip device.

[13] In addition, the conventional closure clip device has a shortcoming in that since an air-tight seal is well not established between the interior and exterior of the flexible bag, in case where the food and the like contained in the flexible bag B is stored for a long period of time, the food and the like may be spoiled by means of air remained inside the flexible bag B. Disclosure of Invention Technical Problem

[14] Accordingly, the present invention has been made in an effort to solve the above problem occurring in the prior art, and it is an object of the present invention to provide a vertical sliding type clip device for sealing plastic bags, which allows a user to easily seal or unseal a plastic bag, and can effectively establish an air-tight seal between the interior and exterior of the plastic bag. Technical Solution

[15] To accomplish the above object, the present invention provides a vertical sliding type clip device for sealing plastic bags, including: a base member; a cover member disposed on the base member; a lifting and lowering section interposed between the base member and the cover member and adapted to lift and lower the cover member to allow a plastic bag to be inserted between the base member and the cover member; and a locking section adapted to couple the base member and the cover member to each other.

[16] The lifting and lowering section includes: a standing support formed protrudingly upwardly or downwardly from each of both sides of one of the base member and the cover member; and a support- accommodating recess formed in each of the both sides of the other of the base member and the cover member so as to allow the standing support to be fittingly inserted thereto.

[17] The base member includes a lower pressing block formed protrudingly upwardly from the top surface thereof, and the cover member comprises an upper pressing block formed protrudingly downwardly from the bottom surface thereof so as to come into close contact with the lower pressing block.

[18] The boundary contact surface between the lower pressing block and the upper pressing block defines a curved line in a longitudinal direction of the pressing blocks. [19] The locking section is formed on both sides of the base member or the cover member, the boundary contact surface between the lower pressing block and the upper pressing block is formed in such a fashion that the central portion thereof takes an arcuate shape convexed downwardly with respect to both sides thereof, and the upper pressing block has a curvature greater than that of the lower pressing block.

[20] Alternatively, the locking section is formed on both sides of the base member or the cover member, wherein the boundary contact surface between the lower pressing block and the upper pressing block is formed in such a fashion that the central portion thereof takes an arcuate shape convexed upwardly with respect to both sides thereof, and wherein the upper pressing block has a curvature smaller than that of the lower pressing block.

[21] In addition, one of the lower pressing block and the upper pressing block has a pressing protrusion formed longitudinally protrudingly on the surface thereof, and the other of the lower pressing block and the upper pressing block has a pressing groove formed longitudinally concavely on the surface thereof so as to allow the pressing protrusion to be engagingly inserted thereto.

Advantageous Effects

[22] As described above, the vertical sliding type clip device for sealing plastic bags of the present invention has the following effects. [23] Since the clip device is lifted and lowered vertically, the user can easily insert or remove the plastic bag into or from the clip device. [24] In addition, an air-tight seal between the interior and exterior of the plastic bag can be established more effectively by means of the upper pressing block and the lower pressing block. Especially, the boundary contact surface between the upper pressing block and the lower pressing block defines a curved line, such that air-tight sealability of the plastic bag can be further increased.

Brief Description of the Drawings [25] FIG. 1 is a perspective view showing the outer appearance of a conventional closure for flexible bags according to the prior art; [26] FIG.2 is a cross-sectional view of FIG. 1;

[27] FIG. 3 is a perspective view showing a vertical sliding type clip device for sealing plastic bags, which is in a closed state, according to an embodiment of the present invention; [28] FIG. 4 is a perspective view showing a vertical sliding type clip device for sealing plastic bags, which is in an opened state, according to an embodiment of the present invention; [29] FIG. 5 is an exploded perspective view showing a vertical sliding type clip device for sealing plastic bags, which is viewed from one direction, according to an embodiment of the present invention;

[30] FIG. 6 is an exploded perspective view showing a vertical sliding type clip device for sealing plastic bags, which is viewed from the other direction, according to an embodiment of the present invention;

[31] FIG. 7 is a schematic diagrammatic cross-sectional view showing the structure of an upper pressing block and a lower pressing block of a vertical sliding type clip device for sealing plastic bags according to an embodiment of the present invention; and

[32] FIG. 8 is a cross-sectional view showing a vertical sliding type clip device for sealing plastic bags according to an embodiment of the present invention.

[33] <Explanation on reference numerals of main elements in drawings >

[34] 110: cover member, 111: support- accommodating recess, 112: upper pressing block,

113: first hook, 114: elevating spring, 115: pressing protrusion, 120: base member, 121: standing support, 122: lower pressing block, 123: second hook, 124: locking spring, 125: pressing groove Mode for the Invention

[35] Reference will now be made in detail to a preferred first embodiment of the present invention with reference to the attached drawings.

[36] FIG. 3 is a perspective view showing a vertical sliding type clip device for sealing plastic bags, which is in a closed state, according to an embodiment of the present invention, FIG. 4 is a perspective view showing a vertical sliding type clip device for sealing plastic bags, which is in an opened state, according to an embodiment of the present invention, FIG. 5 is an exploded perspective view showing a vertical sliding type clip device for sealing plastic bags, which is viewed from one direction, according to an embodiment of the present invention, FIG. 6 is an exploded perspective view showing a vertical sliding type clip device for sealing plastic bags, which is viewed from the other direction, according to an embodiment of the present invention, FIG. 7 is a schematic diagrammatic cross-sectional view showing the structure of an upper pressing block and a lower pressing block of a vertical sliding type clip device for sealing plastic bags according to an embodiment of the present invention, and FIG. 8 is a cross-sectional view showing a vertical sliding type clip device for sealing plastic bags according to an embodiment of the present invention.

[37] As sown in FIGs. 3 to 5, the vertical sliding type clip device for sealing plastic bags according to the present invention includes a base member 120, a cover member 110, a lifting and lowering section and a locking section.

[38] The base member 120 is formed in a generally rectangular parallelepiped shape, and includes a lower pressing block 122 formed protrudingly upwardly from the top surface thereof. [39] The lower pressing block 122 extends along the central line of the base member 120 in a longitudinal direction of the base member 120. [40] The lower pressing block 122 may be formed in a single number at the central portion of the base member 120 and may be formed in plural numbers at the front and rear sides of the base member 120, respectively. [41] The cover member 110 serves to protectively cover the top portion of the base member 120, and a neck portion adjacent to an entrance opening of the plastic bag is inserted between the base member 120 and the cover member 110. [42] The cover member 110 includes an upper pressing block 112 formed protrudingly downwardly from the bottom surface thereof so as to come into close contact with the lower pressing block 122. [43] The upper pressing block 112 extends along the central line of the cover member 110 in a longitudinal direction of the cover member 110. [44] The upper pressing block 112 may be formed in a single number at the central portion of the cover member 112 and may be formed in plural numbers at the front and rear sides of the cover member 110, respectively. [45] In other words, the upper pressing block 112 and the lower pressing block 122 are formed in the same number as each other so as to allow them to be correspondingly brought into close contact with each other. [46] In case where the upper pressing block 112 and the lower pressing block 122 are formed in plural numbers, respective contact surfaces of the upper pressing block 112 and the lower pressing block 122 are made different from each other in height. [47] For example, if each of the upper pressing block 112 and the lower pressing block

122 is three in number, the contact surfaces of the upper pressing block 112 and the lower pressing block 122 positioned at the central portions of the cover member 110 and the base member 120 are made greater in height than those of the upper pressing blocks 112 and the lower pressing blocks 122 positioned at the front and rear sides of the cover member 110 and the base member 120. [48] By doing so, the plastic bag inserted between the upper pressing block 112 and the lower pressing block 122 is bent due to a difference in height between the contact surfaces of the upper pressing blocks 112 and the lower pressing blocks 122, such that the inflow and outflow of air to and from the plastic bag through the entrance opening of the plastic bag can be further interrupted. [49] In addition, the upper pressing block 112 and the lower pressing block 122 may include an elastic body such as a rubber pad mounted on the contact surfaces thereof so as to increase air-tight sealability of the plastic bag. [50] The lower pressing block 122 and the upper pressing block 112 may be formed in a linear shape when viewed from the front or rear side, but is preferably formed in a curved shape. [51] That is, the boundary contact surface between the upper pressing block 112 and the lower pressing block 122 defines a curved line in a longitudinal direction of the pressing blocks. [52] For this purpose, the boundary contact surface between the lower pressing block 122 and the upper pressing block 112 is formed in such a fashion that the central portion thereof takes an arcuate shape con vexed downwardly with respect to both sides thereof. [53] In this case, the curvature of the upper pressing block 112 is formed greater than that of the lower pressing block 122. [54] That is, a virtual circle drawn by extending the arcuate line surface of the upper pressing block 112 is formed smaller than that drawn by extending the arcuate line surface of the lower pressing block 122. [55] Alternatively, the boundary contact surface between the lower pressing block 122 and the upper pressing block 112 is formed in such a fashion that the central portion thereof takes an arcuate shape con vexed upwardly with respect to both sides thereof. [56] In this case, the curvature of the upper pressing block 112 is formed smaller than that of the lower pressing block 122. [57] That is, a virtual circle drawn by extending the arcuate line surface of the upper pressing block 112 is formed greater than that drawn by extending the arcuate line surface of the lower pressing block 122. [58] By doing so, when the cover member 110 and the base member 120 are coupled to each other by means of the locking section formed at each of both sides of the cover member 110 and the base member 120, the close-contact force between upper pressing block 112 and the lower pressing block 122 can be further increased. [59] Also, one of the lower pressing block 122 and the upper pressing block 112 has a pressing protrusion 115 formed longitudinally protrudingly on the surface thereof, and the other of the lower pressing block 122 and the upper pressing block 112 has a pressing groove 125 formed longitudinally concavely on the surface thereof so as to allow the pressing protrusion 115 to be engagingly inserted thereto. [60] In this embodiment, the upper pressing block 112 has the pressing protrusion 115 protrudingly on the surface thereof, and the lower pressing block 122 has the pressing groove 125 formed concavely on the surface thereof. [61] The lifting and lowering section functions to vertically lift and lower the cover member 110 so as to allow the neck portion of the plastic bag to be disposed between the base member 120 and the cover member 110. [62] The lifting and lowering section includes a standing support 121, a support- accommodating recess 111 and an elevating spring 114. [63] The standing support 121 is formed protrudingly upwardly from each of both sides of the top surface of the base member 112. [64] The support-accommodating recess 111 is formed in each of both sides of the bottom surface of the cover member 110 so as to allow the standing support to be fittingly inserted thereto. [65] The elevating spring 114 is interposed between the standing support 121 and the support- accommodating recess 111 so as to elastically support the cover member 110. [66] Alternatively, the support-accommodating recess 111 may be formed in the base member 120, and the standing support 121 may be correspondingly formed on thereon. [67] The locking section serves to fasteningly engage the base member 120 and the cover member 110 with each other, and general locking means can be used as the locking section. [68] In this embodiment, a first hook 113 is formed protrudingly downwardly from the bottom surface of both sides thereof, and a second hook 123 is formed in the base member 120 to correspond to the first hook 113 so as to allow the first hook 1143 to be snap-fittingly engaged therewith. The second hook 123 is elastically supported by a locking spring 124 in a direction in which the second hook 123 is engaged with the first hook 13. [69] The second hook 123 is mounted in the base member 120 in such as fashion as to be horizontally movable by means of the locking spring 124. [70] Thus, when the cover member 110 is lowered, i.e., is moved downwardly toward the base member 120, the first hook 113 is snap-fittingly engaged with the second hook

123 while compressing the elevating spring 114. [71] In this case, the second hook 123 is brought into close contact with the first hook 113 by means of an elastic restoring force of the locking spring 124 so as to prevent the cover member 110 from escaping from the base member 120. [72] Now, the operating process of the vertical sliding type clip device for sealing the plastic bags of present invention as constructed above will be discussed hereinafter. [73] As shown in FIG. 4, the neck portion of a plastic bag is placed between the base member 120 and the cover member 110 in a state where the cover member 110 is lifted by means of an elastic force of the elevating spring 114. [74] In this case, the neck portion of the plastic bag is placed across the boundary contact surface between the upper pressing block 112 and the lower pressing block 122. [75] Thereafter, a user presses the cover member 110 into a closed state as shown in FIG.

3. [76] The cover member 110 is lowered while compressing the elevating spring 114, and the first hook 113 formed on the bottom of the cover member 110 is snap-fittingly engaged with the second hook 123 formed in the base member while abutting against being brought into close contact with the second hook 123.

[77] At this time, the first hook 113 is closely engaged with the second hook 123 by means of the elastic force of the locking spring 124. For this reason, the cover member 110 is engaged with the base member 120 without being moved upwardly.

[78] When the cover member 110 is engaged with the base member 120, the upper pressing block 112 and the lower pressing block 122 are brought into close contact with each other with the plastic bag interposed therebetween.

[79] At this time, as shown in FIG. 7(a), in case where the boundary contact surface between the lower pressing block 122 and the upper pressing block 112 is formed in such a fashion that the central portion thereof takes an arcuate shape con vexed downwardly with respect to both sides thereof and the curvature of the upper pressing block 112 is formed greater than that of the lower pressing block 122, the locking section is formed at both sides of the cover member 110 and the base member 120. Thus, when the both sides of the cover member 110 and the base member 120 are coupled to each other by means of the locking section, the central portions of the upper pressing block 112 and the lower pressing block 122 are brought into closer contact with each other than the both sides thereof.

[80] In other words, since the contact surfaces of the central portions of the upper pressing block 112 and the lower pressing block 122 come earlier into close contact with each other than those of both sides thereof, when the both sides of the upper pressing block 112 and the lower pressing block 122 come into close contact with each other, the central portions of the upper pressing block 112 and the lower pressing block 122 come into much closer contact with each other.

[81] Moreover, the pressing protrusion 115 and the pressing groove 125 formed on the upper pressing block 112 and the lower pressing block 122 further increase the airtight sealability of the neck portion of the plastic bag.

[82] Thereafter, in case where it is desired to remove the plastic bag from the clip device, when the user pushingly presses the second hook 123, the first hook 113 hookingly engaged with the second hook 123 is released from the engagement with the second hook 123, and the cover member 110 is lifted by means of the elastic restoring force of the elevating spring 114 which has been compressed such that a space is defined between the base member 120 and the cover member 110.

[83] As a result, the plastic bag can be removed from the clip device.

[84] The vertical sliding type clip device for sealing plastic bags according to the present invention is not limited to the above-mentioned embodiment, but can be modified variously within a scope of the technical spirit of the present invention. Industrial Applicability

[85] The vertical sliding type clip device for sealing plastic bags according to the present invention has an effect in that the neck portion of the plastic bag is placed between the cover member and the base member of the clip device and then cover member and the base member are coupled to each other, such that an air-tight seal between the interior and exterior of the plastic bag can be established more easily and effectively.

Claims

[1] A vertical sliding type clip device for sealing plastic bags, comprising: a base member; a cover member disposed on the base member; a lifting and lowering section interposed between the base member and the cover member and adapted to lift and lower the cover member to allow a plastic bag to be inserted between the base member and the cover member; and a locking section adapted to couple the base member and the cover member to each other.

[2] The vertical sliding type clip device according to claim 1, wherein the lifting and lowering section comprises: a standing support formed protrudingly upwardly or downwardly from each of both sides of one of the base member and the cover member; and a support- accommodating recess formed in each of the both sides of the other of the base member and the cover member so as to allow the standing support to be fittingly inserted thereto.

[3] The vertical sliding type clip device according to claim 2, wherein the lifting and lowering section further comprises an elevating spring interposed between the standing support and the support- accommodating recess.

[4] The vertical sliding type clip device according to claim 1 or 2, wherein the base member comprises a lower pressing block 122 formed protrudingly upwardly from the top surface thereof, and the cover member comprises an upper pressing block 115 formed protrudingly downwardly from the bottom surface thereof so as to come into close contact with the lower pressing block.

[5] The vertical sliding type clip device according to claim 4, wherein the boundary contact surface between the lower pressing block and the upper pressing block defines a curved line in a longitudinal direction of the pressing blocks.

[6] The vertical sliding type clip device according to claim 5, wherein the locking section is formed on both sides of the base member or the cover member, wherein the boundary contact surface between the lower pressing block and the upper pressing block is formed in such a fashion that the central portion thereof takes an arcuate shape convexed downwardly with respect to both sides thereof, and wherein the upper pressing block has a curvature greater than that of the lower pressing block.

[7] The vertical sliding type clip device according to claim 5, wherein the locking section is formed on both sides of the base member or the cover member, wherein the boundary contact surface between the lower pressing block and the upper pressing block is formed in such a fashion that the central portion thereof takes an arcuate shape convexed upwardly with respect to both sides thereof, and wherein the upper pressing block has a curvature smaller than that of the lower pressing block. [8] The vertical sliding type clip device according to claim 4, wherein one of the lower pressing block and the upper pressing block 112 has a pressing protrusion formed longitudinally protrudingly on the surface thereof, and the other of the lower pressing block and the upper pressing block has a pressing groove formed longitudinally concavely on the surface thereof so as to allow the pressing protrusion to be engagingly inserted thereto.