Clip for sealing bag opening

Abstract

A clip used to seal an opening of a bag according to an embodiment of the present invention includes a base extending lengthily in a longitudinal direction and provided with a coupling pin at each of both ends thereof, and a movable frame including a handle part disposed above the base to extend in the longitudinal direction and an elastic member disposed at each of both ends of the handle part and having one end coupled to the coupling pin and the other end restricted by the handle part, wherein the handle part further includes an inner accommodation part lengthily extending along the longitudinal direction, and the elastic member is slidable along the inner accommodation part, wherein the elastic member is inserted only up to a predetermined position within the inner accommodation part and is withdrawn only up to a predetermined position outside the inner accommodation part, and the movable frame is elastically deformed by external force to move closer or further away from the base, wherein a position of the movable frame is maintained at the lowest height closest to the base, the highest height that is maximally spaced apart from the base, and an intermediate height between the lowest height and the highest height.

Description

TECHNICAL FIELD

[0001] The present invention relates to a clip used to seal a bag opening, and more particularly, to a clip designed to seal the entire bag opening without a gap, thereby preventing contents inside a bag from flowing out by a simple operation.BACKGROUND ART

[0002] In general, products sealed using plastic bags have a risk of a change in condition of contents due to an inflow of air into the bags after being opened, a risk of spoilage or contamination of the contents due to an introduction of burgs or dust into the bags, and thus, a user usually seals the bag by tying the opening with a rubber band or string to prevent air from being introduced as much as possible. However, the conventional sealing method described above had a problem of being very cumbersome to be used, and tools capable of sealing the bag opening have been invented on the market.

[0003] For example, Korean Patent Registration No. 10-0416405 discloses an invention related to a pack sealing device, which is a tool for sealing an opening of a pack (bag and envelope made of various materials and having various sizes and shapes) which contains various items or objects including liquids, gases, and solids in a manner in which an opening of the pack is folded, and then, the sealing device is inserted into the folded portion to seal the pack opening.

[0004] However, since this type of sealing tool is designed to have a predetermined gap in an incision of which one side is opened, when the pack has a relatively thick thickness (such as a rice bag or a pet food bag), there is a disadvantage in that it is difficult to insert the pack into the incision. In addition, since the sealing tool is designed to be used after folding the opening defined in an upper end of the bag once for sealing, it is found to have a somewhat cumbersome disadvantage in actual use.DISCLOSURE OF THE INVENTIONTechnical Problem

[0005] The present invention has been created to solve the above-described problems, and an object of the present invention is to provide a clip capable of sealing a bag opening through a simple operation.

[0006] Another object of the present invention is to provide a compatible sealing clip that is capable of being widely applied to a bag having a large size or thick thickness.Technical Solution

[0007] To achieve the above objects, a clip used to seal an opening of a bag according to an embodiment of the present invention includes a base extending lengthily in a longitudinal direction and provided with a coupling pin at each of both ends thereof, and a movable frame disposed above the base comprising a handle part extending in the longitudinal direction and an elastic member disposed at each of both ends of the handle part and having one end coupled to the coupling pin and the other end restricted by the handle part, wherein the handle part further includes an inner accommodation part lengthily extending along the longitudinal direction, and the elastic member is slidable along the inner accommodation part, wherein the elastic member is inserted only up to a predetermined position within the inner accommodation part and is withdrawn only up to a predetermined position outside the inner accommodation part, and the movable frame is elastically deformed by external force to move closer or further away from the base, wherein a position of the movable frame is maintained at the lowest height closest to the base, the highest height that is maximally spaced apart from the base, and an intermediate height between the lowest height and the highest height.

[0008] In addition, a stopper may be disposed between one end and the other end of the elastic member, and the elastic member is divided into an outer portion between the one end and the stopper and an inner portion between the stopper and the other end, wherein the inner portion may be inserted into the inner accommodation part, wherein the stopper may be hooked with an outer end of the inner accommodation part so that the inner portion is inserted only up to a predetermined position within the inner accommodation part.

[0009] In addition, a pair of protrusions may protrude from a bottom surface of the handle part in the inner accommodation part of the handle part, a closed ring member may be provided at the other end of the elastic member, and the elastic member at each of both the ends of the handle part may be assembled with the handle part to accommodate one protrusion into the ring member.

[0010] In addition, the inner portion of the elastic member may be withdrawn from the inner accommodation part, wherein the ring member may be restricted by the protrusion so that the elastic member is withdrawn only up to the predetermined position outside the inner accommodation part.

[0011] In addition, the lowest height may correspond to a state in which the two elastic members of the movable frame are maximally inserted into the inner accommodation part so that the movable frame has the shortest length and is elastically curved downward to overlap the base, the intermediate height may correspond to a state in which the movable frame is maintained at the shortest length and is elastically curved upward to be spaced the intermediate height from the base, and the highest height may correspond to a state in which the two elastic members of the movable frame are maximally withdrawn from the inner accommodation part so that the movable frame has a maximum length and is further curved upward to be spaced the highest height from the base.

[0012] In addition, the movable frame may be deformed in stages between the lowest height, the intermediate height, and the highest height.

[0013] In addition, when the handle part of the movable frame is pulled upward from the base at the highest height, in a state in which the shortest length of the movable frame is maintained, the movable frame may be elastically deformed upward to be convex so that the movable frame has the intermediate height, and when the handle part is further pulled upward at the intermediate height, the inner portion may be withdrawn from the inner accommodation part, and the movable frame may extend lengthily and be further deformed upward to be convex so that the movable frame has the highest height.

[0014] In addition, when the handle part of the movable frame is pressed downward toward the base at the highest height, the inner portion may be inserted into the inner accommodation part so that the movable frame approaches the base, and when the movable frame has the shortest length, the inner portion may have the intermediate height, and when the handle part is further pressed downward at the intermediate height, in the state in which the movable frame is maintained at the shortest length, the movable frame may be elastically deformed downward to be convex so that the movable frame has the lowest height.

[0015] In addition, when the movable frame has the lowest height, the handle part and the base may be in surface contact with each other, and a gap may occur between each of the pair of elastic members and the base.Advantageous Effects

[0016] According to an embodiment of the present invention, the sealing clip that is easily used to seal and open the bag opening through the simple operation may be provided.BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG. 1 is an exploded perspective view of a clip used to seal a bag opening according to an embodiment of the present invention.

[0018] FIG. 2 is front and perspective views of the clip illustrated in FIG. 1.

[0019] FIG. 3a is a plan view of a movable frame.

[0020] FIG. 3b is a side view of the movable frame.

[0021] FIG. 3c is an exploded perspective view of the movable frame.

[0022] FIG. 3d is a perspective view of an elastic member when viewed from the bottom.

[0023] FIG. 3e is a perspective view of a handle part when viewed in various directions.

[0024] FIG. 4 is a side view of a base.

[0025] FIG. 5a is side and bottom views when the movable frame has the longest length.

[0026] FIG. 5a is side and bottom views when the movable frame has the shortest length.

[0027] FIG. 6a is a view when the movable frame is disposed at the lowest height.

[0028] FIG. 6b is a view when the movable frame is disposed at an intermediate height.

[0029] FIG. 6c is a view when the movable frame is disposed at the highest height.

[0030] FIG. 6d is a view illustrating a modified example in use of the clip according to the present invention.MODE FOR CARRYING OUT THE INVENTION

[0031] Hereinafter, preferred embodiments will be described in detail with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein; rather, these embodiments are provided so that those skilled in the art thoroughly understand the present invention. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will completely convey the scope of the present invention to those skilled in the art.

[0032] Also, in the drawing figures, the dimensions of layers and areas may be exaggerated for clarity of illustration. Like reference numerals refer to like elements throughout. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. In this specification, it will also be understood that if a member A is referred to as being connected to a member B, the member A can be directly connected to the member B or indirectly connected to the member B with a member B therebetween. The terms used herein are for illustrative purposes of the present invention only and should not be construed to limit the meaning or the scope of the present invention. As used in this specification, a singular form may, unless definitely indicating a particular case in terms of the context, include a plural form. Also, the expressions “comprise / include” and / or “comprising / including” used in this specification neither define the mentioned shapes, numbers, steps, operations, members, elements, and / or groups of these, nor exclude the presence or addition of one or more other different shapes, numbers, steps, operations, members, elements, and / or groups of these, or addition of these. The term “and / or” used herein includes any and all combinations of one or more of the associated listed items.

[0033] As used herein, terms such as “first,”“second,” etc. are used to describe various members, components, areas, layers, and / or portions. However, it is obvious that the members, components, areas, layers, and / or portions should not be defined by these terms. The terms do not mean a particular order, up and down, or superiority, and are used only for distinguishing one member, component, area, layer, or portion from another member, component, area, layer, or portion. Thus, a first member, component, area, layer, or portion which will be described may also refer to a second member, component, area, layer, or portion, without departing from the teaching of the present invention.

[0034] Spatially relative terms, such as “below”, “beneath”, “lower”, “above”, “upper” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. These spatially relative terms are intended for easy comprehension of the prevent invention according to various process states or usage states of the prevent invention, and thus, the present invention is not limited thereto. For example, an element or feature shown in the drawings is turned inside out, the element or feature described as “beneath” or “below” may change into “above” or “upper”. Thus, the term “below” may encompass the term “above” or “below”.

[0035] FIG. 1 is an exploded perspective view of a clip used to seal a bag opening according to an embodiment of the present invention, FIG. 2 is front and perspective views of the clip illustrated in FIG. 1, FIG. 3a is a plan view of a movable frame, FIG. 3b is a side view of the movable frame, FIG. 3c is an exploded perspective view of the movable frame, FIG. 3d is a perspective view of an elastic member when viewed from the bottom, FIG. 3e is a perspective view of a handle part when viewed in various directions, FIG. 4 is a side view of a base, FIG. 5a is side and bottom views when the movable frame has the longest length, FIG. 5a is side and bottom views when the movable frame has the shortest length, FIG. 6a is a view when the movable frame is disposed at the lowest height, FIG. 6b is a view when the movable frame is disposed at an intermediate height, FIG. 6c is a view when the movable frame is disposed at the highest height, and FIG. 6d is a view illustrating a modified example in use of the clip according to the present invention. Hereinafter, with reference to these drawings, a clip 100 used to seal a bag opening according to an embodiment of the present invention will be described.

[0036] The clip 100 of the present invention includes a base 110 and a movable frame 130.

[0037] Referring to the drawings, the base 110 extends in a longitudinal direction, and a coupling pin 111 is disposed on each of both ends of the base 110. The base 110 may be a portion that presses and seals an opening-side surface of a bag sandwiched with the movable frame 130 as described later, and the side surface may have a shape of which a partial central portion is flat and then is gradually curved upward toward each of both ends as illustrated in FIGS. 1 and 2. The coupling pin 111 may be disposed on each of both ends of the base 110 so that the elastic member 150 of the movable frame 130, which will be described later, is pivotally coupled to the coupling pin 111. For example, as illustrated in FIG. 1, a ¬-shaped post of which an upper end is bent inward may be provided at each of both ends of the base 110, and each post may be provided with the coupling pin 111 passing through the post. In addition, a coupling hole is provided at one end of the elastic member 150, and thus, the coupling pin 111 of the base 110 may be inserted into the coupling hole so that the coupling pin 111 and the coupling hole are coupled to each other. In addition, the base 110 may be entirely integrated and may be optionally provided with two left and right pieces in a shape that is fixedly coupled at a center thereof. In addition, selectively, a slit may be provided at a center in a width direction of the base 220, and a reinforcing plate made of a rigid material may be inserted into the slit to give rigidity to the base 110. In addition, at least one uplifted portion 123 is disposed in a longitudinal direction on a top surface of the base 110. For example, as illustrated in FIG. 1, two uplifted portions 123 may be arranged in the longitudinal direction of the base 110. The uplifted portion 123 may be disposed to face a groove 152 that is concavely defined in a bottom surface of an outer portion 153 of the elastic member 150 described later, thereby enabling the bag to be more firmly fixed between the base 110 and the movable frame 130 when the base 110 and the movable frame 130 are disposed close to each other.

[0038] The movable frame 130 includes a handle part 140 disposed above the base 110 to extend in the longitudinal direction, and a pair of elastic members 150 disposed at both ends of the handle part 140 and having one end coupled to the coupling pin 111 by using a means such as a screw and the other end restricted by the handle part 140. The elastic member 150 may be bent downward to correspond to a surface shape of the base 110 when the base 110 and the movable frame 130 are disposed at the lowest height (see FIG. 6a), or may be bent upward when the base 110 and the movable frame 130 are disposed at an intermediate height or the highest height (see FIGS. 6b and 6c). The shape of the entire movable frame 130 may be flexibly deformed by bending deformation of the elastic member 150. That is, the movable frame 130 may be bent to be convex upward at the highest height as illustrated in FIG. 6c, and the shape of the movable frame 130 at the lowest height is elastically deformed to be convex downward to be close to the base110 as illustrated in FIG. 6a. For this, the elastic member 150 may be made using, for example, a polyacetal (POM) material. Since the POM has excellent elastic recovery and fatigue resistance, the POM may be maintained for a long lifespan even under such the repeated deformation. The handle may be provided at a center of the handle part 140 so that a user holds the handle with his / her fingers, and selectively, a hole may be provided to fix a handle ring for the convenience of the holding. The handle part 140 may be coupled to the base 110 through the elastic members 150 provided at both the ends thereof.

[0039] Here, as illustrated in FIG. 3d, the groove 152 may be defined in the bottom surface of the outer portion 153 of the elastic member 150. The groove 152 is configured to accommodate the uplifted portion 123 provided on the top surface of the base 110 inward. The groove 152 may be provided by defining the groove through separate processing in the bottom surface of the elastic member 150. For example, the groove 152 may be provided by bending a cross-section of the elastic member 150 into a “⊏” shape as illustrated in FIG. 3d. As a result, when the base 110 and the movable frame 130 are close to each other, the bag inserted between the base 110 and the movable frame 130 is restricted by the uplifted portion 123 and the groove 152 to prevent the bag from slipping away from the base 110 and the movable frame 130.

[0040] In addition, the handle part 140 is provided further with an inner accommodation part 141 that lengthily extends in the longitudinal direction. The inner accommodation part 141 is a type of conduit having a square cross-section, which is provided in a hexahedral hollow within the handle part as illustrated in FIG. 3e. The inner accommodation part 141 is configured to accommodate an inner portion 155 of the elastic member 150 to be slidable therein. A left elastic member 150 is inserted / withdrawn into / from the inner accommodation part 141 that is opened to one side in the longitudinal direction (left side in FIG. 3e) of the handle part 140, and a right elastic member 150 is inserted / withdrawn into / from the inner accommodation part 141 that is opened to the other side in the longitudinal direction (right side in FIG. 3e) of the handle part 140. For this, a cross-sectional size of the inner accommodation part 141 is larger than a cross-sectional size of the inner portion 155 of the elastic member 150.

[0041] One end of one elastic member 150 is pivotally coupled to a left coupling pin 111, and one end of the other elastic member 150 is pivotally fixed to a right coupling pin 111. As described above, one end of each elastic member 150 is fixed to the two coupling pins 111, and the other end of each elastic member 150 is slidable along the inner accommodation part 141 provided in the handle part 140. The elastic member 150 is divided into an outer portion 153 between one end and a stopper 151 and an inner portion 155 between the stopper 151 and the other end (see FIG. 1). A portion of the elastic member 150 that is slid to the inner accommodation part 141 may be the inner portion 155 of the elastic member 150. As the inner portion 155 is slid in and out of the inner accommodation part 141, an entire length of the movable frame 130 that reaches the handle part 140 and both the elastic members 150 is adjusted. Here, the elastic member 150 may be provided with a stopper 151 (see FIG. 3d) that protrudes upward or laterally between one end and the other end, and thus, the inner portion 155 may be inserted into the inner accommodation part 141. However, the stopper 151 may be hooked with the outer end of the inner accommodation part 141, and thus, the inner portion 155 may be inserted into the inner accommodation part 141 only up to a predetermined position.

[0042] A pair of protrusions 156 (see FIG. 3e) protrude from a bottom surface of the handle part 140 in the inner accommodation part 141 of the handle part 140. In addition, a closed ring member 157 is provided at the other end of the elastic member 150. Each elastic member 150 provided at each of both the ends of the handle part 140 is assembled to the handle part 140 to accommodate one protrusion 156 into the ring member 157. That is, since the protrusion 156 exists in the area inside the ring member 157, when the elastic member 150 is withdrawn from the inner accommodation part 141, the ring member 157 may be withdrawn only until the ring member 157 is hooked with the protrusion 156. Thus, the ring member 157 is restricted by the protrusion 156 so that the elastic member 150 is withdrawn only up to a predetermined position outside the inner accommodation part 141.

[0043] The movable frame 130 according to the present invention is changed in shape by external force to approach or be separated from the base 110 and also is maintained in position at the lowest height closest to the base 110, the highest height separated from the base 110, and the intermediate height between the lowest and highest heights. The lowest height is illustrated in FIG. 6a, the intermediate height is illustrated in FIG. 6b, and the highest height is illustrated in FIG. 6c.

[0044] The lowest height of FIG. 6a corresponds to a state in which the two elastic members 150 of the movable frame 130 are completely inserted into the inner accommodation part so that the movable frame 130 has the shortest length, but are elastically curved downward to overlap the base 110. The shortest length state is illustrated in FIG. 5b. Referring to the drawings, the stopper 151 of the elastic member 150 is hooked with the outer end of the handle part, and the inner portion 155 is inserted most deeply into the inner accommodation part 141. This state is a state in which the overall length of the movable frame 130 is the shortest, and the movable frame 130 is maintained in a form in which the movable frame 130 is elastically curved downward.

[0045] The intermediate height of FIG. 6b is a state in which the movable frame 130 is maintained at the shortest length, but is elastically curved upward and spaced the intermediate height from the base 110. The length of the movable frame 130 is the same as the lowest height of FIG. 6a and is a state in which the inner portion 155 is inserted most deeply into the inner accommodation part 141, but an outer appearance of the movable frame 130 is deformed into a shape that is curved upward. For example, when the movable frame 130 is disposed at the lowest height, if the user pulls the handle part 140 upward, the downwardly convex movable frame 130 springs back elastically and is deformed into an upwardly convex shape.

[0046] The highest height of FIG. 6c corresponds to a state in which the two elastic members 150 of the movable frame 130 are completely withdrawn from the inner accommodation part 141, so that the movable frame 130 has the maximum length, but is further curved upward and is spaced the highest height from the base 110. For example, when the movable frame 130 is disposed at the intermediate height, if the user pulls the handle part 140 upward, the elastic member 150 is withdrawn from the inner accommodation part 141 to lengthen the overall length of the movable frame 130, and in the process, the movable frame 130 becomes more convexly curved upward. Here, the inner portion 155 of the elastic member 150 may be coupled to the inner accommodation part 141 of the handle part 140 in a fitted state. Thus, when the handle part 140 is pulled upward with force stronger than frictional force between the inner portion 155 and the inner accommodation part 141, the height deformation described above may occur.

[0047] As a result, the movable frame 130 is selectively deformed between the lowest height, the intermediate height, and the highest height, and in particular, is deformed in stages between the lowest height, the intermediate height, and the highest height.

[0048] Hereinafter, referring to FIGS. 6a to 6c, the change in position and shape of the movable frame 130 will be specifically described.

[0049] As described above, the handle part 140 is provided with a handle, and the user pulls the handle upward with a finger or pulls upward a handle ring (not shown) additionally installed on the handle part 140 to open the movable frame 130 from the base 110. In a state in which the base 110 and the movable frame 130 are gapped therebetween, the bag to be sealed is disposed between the base 110 and the movable frame 130, and the movable frame 130 is pressed toward the base 110, and thus, the opening of the bag is sealed using the firm pressure between the two members. This motion may be realized through elastic relative position changes of the movable frame 130 with respect to the base 110.

[0050] First, at the lowest height of FIG. 6a, the inner portion 155 of the elastic member 150 is disposed inside the inner accommodation part 141, and the movable frame 130 overlaps the base 110. Here, referring to FIG. 2, when the movable frame 130 is disposed at the shortest length, a straight width between both the ends is longer than a straight width between both the ends of the base 110. Thus, when the movable frame 130 is assembled to the base 110, the width of the base 110 becomes narrower, and thus, the movable frame 130 is bent upward or downward. Here, when the movable frame 130 is pressed downward, the movable frame 130 is elastically bent to overlap the base 110. In addition, the handle part 140 at the central side of the movable frame 130 and the base 110 are in surface contact with each other, and a gap may be provided between the elastic member at a side of the movable frame 130 and the base 110. For this, for example, the heights of both sides in the longitudinal direction of the base 110 may be designed to be lower than a height of the center in the longitudinal direction.

[0051] When the handle part 140 of the movable frame 130 is pulled upward from the base 110 at the lowest height, the movable frame 130 is elastically deformed upward to be convex while maintaining the shortest length so that the movable frame 130 has the intermediate height. Particularly, when the user pulls the handle upward, the movable frame 130 is slowly lifted from the base 110, and the elastic member 150 continuously presses the handle part 140. Thereafter, at the moment when the handle part 140 moves away from the base 110 beyond a critical position, the elastic member 150 elastically bounces off the handle part 140, and the elastic member 150, which was curved downward, is instantaneously deformed into a upwardly convex shape. This causes the movable frame 130 to be bent upward as illustrated in FIG. 6b, thereby generating a space between the movable frame 130 and the base 110. In this state, the movable frame 130 is maintained in the shortest length state.

[0052] When the handle part 140 is pulled upward from the intermediate height, the length of the movable frame 130 extends as the inner portion is withdrawn from the inner accommodation part 141, and the movable frame 130 is deformed to be more convex upward, thereby reaching the highest height. Particularly, when the user further pulls the handle upward, and thus, the force is greater than the frictional force between the inner portion 155 and the inner accommodation part 141, the inner portion 155 begins to be slid outward away from the inner accommodation part 141. As the slidable movement progresses, when the ring member 157 of the inner portion 155 is hooked with the protrusion, the slidable movement stops, and the movable frame 130 reaches its maximum length. In this process, the movable frame 130 is completely curved upward and is spaced the highest height from the base 110. Even as the length of the movable frame 130 increases, since the inner portion 155 of the elastic member 140 continuously presses an inner wall of the inner accommodation part 141 outward, when the user's external force becomes smaller than the frictional force during the process in which the movable frame 130 has the highest height, the movable frame 130 may be maintained in the bent shape as it is.

[0053] Additionally, in the state illustrated in FIGS. 6b and 6c, the movable frame 130 is maintained to be the upwardly convex state, and at this time, the post provided on the base 110 has a “¬” shaped hook on its upper end that is bent inward, and the hook is in contact with the elastic member 140 of the movable frame 130. As described above, the hook restricts the upward movement of the movable frame 130 to guide the movable frame, thereby preventing the movable frame from wobbling.

[0054] In the intermediate or highest height state, the user allows the opening of the bag to be disposed between the base 110 and the movable frame 130 to press the handle part 140 toward the base 110 so that the movable frame 130 is close to the base 110, thereby sealing the opening of the bag. When the movable frame 130 is close to the base 110 at the highest height, the elastic members 150 on both the sides press the handle part 140 therebetween, and when the pressing force is greater than the frictional force, the inner portion 155 is inserted into the inner accommodation part 141 to reduce the length of the movable frame 130 and simultaneously to be lowered the height from the base 110. In this process, the stopper 151 has the shortest length when it is hooked with the outer end of the handle part 140, and the movable frame 130 has the intermediate height (FIG. 6b). In addition, when the movable frame 130 is closer to the base 110 at the intermediate height, elasticity is accumulated as the elastic members 150 at both the sides of the handle part 140 are pressed. If the pressure continues, one of the elastic members 150 or both elastic members 150 are elastically deformed into a downwardly convex shape. In addition, the handle part 140 and the pair of elastic members 150 overlap the top surface of the base 110 (see FIG. 6a).

[0055] The opening of the bag may be closed by setting the clip of the present invention to the above-described intermediate height state, disposing the opening of the bag in the space generated between the movable frame 130 and the base 110, and deforming the clip to the lowest height. However, usually, a cup used to scoop out contents (such as feeds) is often placed inside the bag. The user opens the clip to the intermediate height in the state in which the clip closes the opening of the bag, and then, after the bag is opened, the cup inside the bag is taken out to scoop out the contents. However, if a size of the cup is large, and the space between the movable frame 130 and the base 110 is smaller than the cup in the intermediate height state, the cup may not be able to move in and out of the space. In this case, the user may have inconvenience as the user has to separate the entire clip from the bag to scoop out the feed, and then put the clip back into the bag when the use is finished. Thus, the present invention has been designed to enable the clip to be set to the highest height higher than the intermediate height. Since the space between the movable frame 130 and the base 110 is large at the highest height, the cup may be taken out of the bag or placed into the bag by leaving the clip hung around the opening of the bag in the state in which the bag is opened, and thus, there is no need to separate the clip from the bag opening so as to remove and use the cup.

[0056] In addition, when deformed from the intermediate height state of FIG. 6b to the lowest height state of FIG. 6a, only the elastic members 140 at either side may be elastically deformed downward. Referring to FIG. 6d, when the movable frame 130 is pressed downward in the intermediate height state of FIG. 6b, only the elastic member 150 at the left is deformed downward to be convex and then overlap the base 110, and the elastic member 150 at the right is still maintained in the upwardly convex state. When the pressing is applied at a position that is slightly off the center of the handle part 140, only one elastic member is deformed as described above. According to this configuration, the space in which the bag opening is inserted between the movable frame 130 and the base 110 becomes narrower than the intermediate height state of FIG. 6b. Thus, if the bag size is small, when opening and closing the base 110 and the movable frame 130, one elastic member 150 is maintained in the state of overlapping the base 110, and only the rest elastic member 150 is deformed, and thus, the bag clip of the present invention may be deformed and used to be suitable for the bag size.

[0057] The above-mentioned embodiment is merely an embodiment of the clip used for sealing the bag opening according to the present invention, and thus, the present invention is not limited to the foregoing embodiment, and also it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.

Claims

1. A clip used to seal an opening of a bag, the clip comprising:a base extending lengthily in a longitudinal direction and provided with a coupling pin at each of both ends thereof; anda movable frame disposed above the base comprising a handle part extending in the longitudinal direction and an elastic member disposed at each of both ends of the handle part and having one end coupled to the coupling pin and the other end restricted by the handle part,wherein the handle part further comprises an inner accommodation part lengthily extending along the longitudinal direction, and the elastic member is slidable along the inner accommodation part, wherein the elastic member is inserted only up to a predetermined position within the inner accommodation part and is withdrawn only up to a predetermined position outside the inner accommodation part, andthe movable frame is elastically deformed by external force to move closer or further away from the base, wherein a position of the movable frame is maintained at the lowest height closest to the base, the highest height that is maximally spaced apart from the base, and an intermediate height between the lowest height and the highest height.

2. The clip as claimed in 1, wherein a stopper is disposed between one end and the other end of the elastic member, and the elastic member is divided into an outer portion between the one end and the stopper and an inner portion between the stopper and the other end,wherein the inner portion is inserted into the inner accommodation part, wherein the stopper is hooked with an outer end of the inner accommodation part so that the inner portion is inserted only up to a predetermined position within the inner accommodation part.

3. The clip as claimed in 2, wherein a pair of protrusions protrude from a bottom surface of the handle part in the inner accommodation part of the handle part,a closed ring member is provided at the other end of the elastic member, andthe elastic member at each of both the ends of the handle part is assembled with the handle part to accommodate one protrusion into the ring member.

4. The clip as claimed in 3, wherein the inner portion of the elastic member is withdrawn from the inner accommodation part, wherein the ring member is restricted by the protrusion so that the elastic member is withdrawn only up to the predetermined position outside the inner accommodation part.

5. The clip as claimed in 4, wherein the lowest height corresponds to a state in which the two elastic members of the movable frame are maximally inserted into the inner accommodation part so that the movable frame has the shortest length and is elastically curved downward to overlap the base,the intermediate height corresponds to a state in which the movable frame is maintained at the shortest length and is elastically curved upward to be spaced the intermediate height from the base, andthe highest height corresponds to a state in which the two elastic members of the movable frame are maximally withdrawn from the inner accommodation part so that the movable frame has a maximum length and is further curved upward to be spaced the highest height from the base.

6. The clip as claimed in 5, wherein the movable frame is deformed in stages between the lowest height, the intermediate height, and the highest height.

7. The clip as claimed in 6, wherein, when the handle part of the movable frame is pulled upward from the base at the highest height, in a state in which the shortest length of the movable frame is maintained, the movable frame is elastically deformed upward to be convex so that the movable frame has the intermediate height, andwhen the handle part is further pulled upward at the intermediate height, the inner portion is withdrawn from the inner accommodation part, and the movable frame extends lengthily and is further deformed upward to be convex so that the movable frame has the highest height.

8. The clip as claimed in 7, wherein, when the handle part of the movable frame is pressed downward toward the base at the highest height, the inner portion is inserted into the inner accommodation part so that the movable frame approaches the base, and when the movable frame has the shortest length, the inner portion has the intermediate height, andwhen the handle part is further pressed downward at the intermediate height, in the state in which the movable frame is maintained at the shortest length, the movable frame is elastically deformed downward to be convex so that the movable frame has the lowest height.

9. The clip as claimed in 6, wherein, when the movable frame has the lowest height, the handle part and the base are in surface contact with each other, and a gap occurs between each of the pair of elastic members and the base.

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