JP2012115435A - Handle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging handle having sufficient strength without making thick, and capable of self-standing without tipping in the attached state to a string.SOLUTION: The handle includes a grip extending in a horizontal direction, first and second descending parts bent downward and extending continuously from both ends of the grip, respectively, first and second string supports extending in a horizontal direction continuously from lower ends of the first and second descending parts, respectively, first and second hollow ascending parts upward rising continuously from the first and second string supports at positions apart from the first and second descending parts, respectively, first and second string stopping protrusions protruded in directions toward the first and second descending parts from surfaces of the first and second ascending parts, which are opposed to the first and second descending parts, respectively, and first and second insertion holes formed by opening bottoms of the first and second hollow ascending parts, respectively.

Description

  The present invention relates to a hand that can be attached to a string or a shopping bag or the like wound around a luggage and used as a handle.

  As a handle to be attached to the string of the luggage, the applicant of the present application is injection-molded with the mold separating direction as the up and down direction, and has a horizontal grip with a semi-cylindrical shape with the upper direction open and elongated in the center. And a lower part where both ends of the grip part are bent downward, a string rest part provided horizontally at the lower end of the lower part, and a upward position from a position away from the lower part of the string rest part. A strap with an anchoring angle and an anchoring angle that rises upward from a position apart from the lower part of the strap and tilts alternately with respect to the plane passing through the center of the lower part. (Patent Document 1).

  According to the lender having such a configuration, it is easy to hang the string using the inclination of the string fixing angle, and the litter can be stacked vertically using the inclination. Can be reduced.

Japanese Patent No. 3598146

  However, according to the conventional litter described in Patent Document 1, it is difficult to sufficiently increase the strength of the strapping angle where the force concentrates, and breakage easily occurs. In particular, the slinging angle of the straps causes the force of the straps to be concentrated laterally or obliquely in the vicinity of the straps, which not only breaks, but also fixes the straps at the straps and lowers. Since a large amount of force is applied to the inclined side, it is necessary to take measures against the damage. Further, this uneven load caused twisting in the grip portion. This biased load may be applied from the load, but when attaching the strap to the strap, the operator tilts the handle and attaches the strap diagonally before the strap sinks sufficiently to the strap stop angle. In particular, it was often damaged when inserted. Furthermore, in recent years, a mechanical fastening PP band (polypropylene band) that has been widely used has a high strength and a high binding force, and a worker is attached against this, so a large force is applied. For this reason, it is also required to have strength that can withstand this.

  In order to increase the strength, the thickness of the required portion may be increased, but it is difficult to increase the thickness due to the characteristics of injection molding. That is, for example, when making a litter by injection molding of polypropylene, if the wall thickness exceeds 4 mm, it takes a lot of time for cooling, not only the productivity decreases but also the case where the shrinkage increases or is worst There was a possibility that a cavity was formed inside.

  Moreover, since the litter described in Patent Document 1 is slanted with respect to the surface passing through the centers of both descending portions, the lipper is released when the hand is released while attached to the string. There was a risk of inconvenience such as falling and making it difficult to hold, and scratching the luggage or wrapping paper.

  Accordingly, an object of the present invention is to provide a hand that can obtain a sufficient strength without increasing the wall thickness.

  Another object of the present invention is to provide a hand that can stand on its own without falling over when it is attached to a strap of a strap.

  According to the present invention, the grip part extended in the horizontal direction, the first and second lower parts provided continuously at both ends in the extension direction of the grip part, and bent downward and extended, The first and second string rest portions that are respectively provided continuously to the lower end portions of the first and second descending portions and extend in the horizontal direction, and the first and second at the positions away from the first and second descending portions. Hollow first and second raised portions that are respectively provided continuously to the second string rest portion and rise upward, and the first and second raised portions of the first and second raised portions. First and second stringing projections projecting in the direction of the first and second descending parts from the surface facing the descending part, respectively, and the vertical direction provided on the first and second stringing parts, respectively. First and second raised portions having first and second through holes. Bottom hand hanging first and second insertion holes are formed is provided by opening.

  Since the first and second through holes in the vertical direction are respectively formed in the first and second string placing portions, the strength of these string placing portions can be further increased, and the first and second raised portions are Since the first insertion hole and the second insertion hole are formed by being hollow and opening the bottom surface, the concentrated load can be distributed and borne by the surrounding wall. For this reason, sufficient strength can be secured without increasing the thickness. Therefore, even when manufactured by injection molding, cooling does not take time, productivity does not decrease, and there is no inconvenience that the shrinkage increases or a cavity is formed inside. And since it is hollow and supports a string with the surrounding wall of two places, it is hard to be damaged. In addition, it is possible to cope with a load in an oblique direction because the load is distributed on the peripheral wall. Furthermore, since the first and second string mounting portions are respectively provided with the first and second through holes in the vertical direction, a part of the mold at the time of the injection molding can pass through the first and second through holes. Since the holes can be penetrated and extended to the lower surfaces of the first and second stringing protrusions, the undercut portions of the first and second stringing protrusions can be easily produced.

  It is preferable that the 1st and 2nd insertion hole is comprised so that the 1st and 2nd raising part in the other hand which overlaps with an up-down direction may each be inserted. In this way, since a large number of litters can be stacked in the vertical direction, storage and transportation are easy, and the occupied volume at that time can be reduced.

  It is also preferable that first and second cutout openings are respectively provided in part of the wall surfaces of the first and second insertion holes on the first and second string rest portions side. Since the 1st and 2nd string stop protrusions in the other lenders to be superimposed enter the first and second cutout openings, respectively, stacking in the vertical direction of the lender becomes easier.

  It is also preferable that the first and second raised portions are configured symmetrically with respect to a vertical plane passing through the axis of the grip portion in the extending direction. By making it bilaterally symmetric, the load can be uniformly distributed and distributed, so that the strength becomes higher and the twist becomes less.

  It is also preferable that the lower ends of the first and second string rest portions and the first and second raised portions constitute a wide bottom surface. Because the bottom surface of the large area is in contact with the load, there is no inconvenience that the load surface or the wrapping paper is damaged. In addition, even if the hand is released with the lender attached to the string, it does not fall down and becomes independent, so handling becomes very easy.

  According to the present invention, since the first and second through holes in the vertical direction are respectively formed in the first and second string placing portions, the strength of these string placing portions can be further increased, Since the second rising portion is hollow and the bottom surface is opened, the first and second insertion holes are formed, so that concentrated loads can be distributed and borne by the surrounding walls. For this reason, sufficient strength can be secured without increasing the thickness. Therefore, even when manufactured by injection molding, cooling does not take time, productivity does not decrease, and there is no inconvenience that the shrinkage increases or a cavity is formed inside. And since it is hollow and supports a string with the surrounding wall of two places, it is hard to be damaged. In addition, it is possible to cope with a load in an oblique direction because the load is distributed on the peripheral wall. Furthermore, since the first and second string mounting portions are respectively provided with the first and second through holes in the vertical direction, a part of the mold at the time of the injection molding can pass through the first and second through holes. Since the holes can be penetrated and extended to the lower surfaces of the first and second stringing protrusions, the undercut portions of the first and second stringing protrusions can be easily produced.

It is a perspective view showing roughly the external composition in one embodiment of the litter of the present invention. FIG. 2 is an elevational view schematically showing an external configuration of the extender of FIG. 1, where (A) shows a single extender and (B) shows a state in which two extenders are stacked. It is a top view which shows roughly the external structure of the hand of FIG. FIG. 2 is a central cross-sectional view schematically showing the internal structure of the extender of FIG. 1, wherein (A) shows a single extender and (B) shows a state in which two extenders are stacked. FIG. 2 is a bottom view schematically showing an enlarged configuration of a part of the handle of FIG. 1. FIG. 2 is a perspective view schematically showing a partial male cavity mold and a partial structure of the hand when the handle of FIG. 1 is manufactured, (A) is a partial structure of the mold, (B ) Is a structure combining the mold and a part of the hand, (C) is a part of the structure of the produced hand, and (D) is a cross-sectional structure taken along the line DD in (C). . It is a perspective view which shows the state which uses the litter of FIG. It is a perspective view which shows the state which uses the litter of FIG. It is a side view for demonstrating the load at the time of using the litter of FIG.

  As shown in FIG. 1 to FIG. 5, the handle 10 in the present embodiment has a grip portion 11 having a substantially semi-cylindrical shape (a shaft section is U-shaped) that extends in the horizontal direction and is open in the upper direction. First and second lowering portions 12a and 12b, which are respectively provided continuously at both ends in the extending direction (axial direction) of the grip portion 11 and bent downward, and the first and second lowering portions. The first and second string rest portions 13a and 13b, which are respectively provided continuously at the lower ends of the portions 12a and 12b and extend in the horizontal direction, and are separated from the first and second lower portions 12a and 12b. The first and second string rest portions 13a and 13b are respectively provided in succession, and are mainly composed of hollow first and second raised portions 14a and 14b rising upward.

  In the present specification, the “horizontal direction” is a direction parallel to the surface of the baggage 10 when the litter 10 is attached to the strap, and the extending direction of the grip portion 11 (the direction of arrow H in FIG. 1). Yes, the “upward direction” is the direction away from the surface of the baggage 10 when attached to the baggage (the direction of the arrow U in FIG. 1), and the “downward” is the baggage of the baggage 10 1 is a direction toward the surface of the load (in the direction of arrow L in FIG. 1), and “top surface” is an upper end surface, and “bottom surface” is a lower end surface.

  The hand 10 protrudes from the surfaces of the first and second raised portions 14a and 14b facing the first and second lowered portions 12a and 12b in the direction of the first and second lowered portions 12a and 12b, respectively. The first and second string stop protrusions 15a and 15b and the first and second through holes 16a and 16b in the vertical direction provided in the first and second string rest portions 13a and 13b, respectively. I have.

  First and second insertion holes 17a and 17b are formed by opening the bottom surfaces of the hollow first and second raised portions 14a and 14b, respectively. First and second cutout openings 18a and 18b are respectively provided on part of the wall surfaces of the first and second insertion holes 17a and 17b on the first and second string rest portions 13a and 13b side. Yes.

  On the inner surface of the grip portion 11, a plurality of lateral ribs 19 extending in a direction perpendicular to the extending direction (axial direction) and having a crescent-shaped surface viewed from the axial direction, and an extending direction (axial direction) in the center ) Are integrally formed with a single longitudinal rib 20 extending along. By providing the lateral ribs 19 and the longitudinal ribs 20, the half-cylinder-shaped grip portion 11 is reinforced and can be prevented from being deformed by the load and the gripping force of the hand against it. In addition, the flow of the resin at the time of shaping | molding is accelerated | stimulated by providing the vertical direction rib 20. As shown in FIG. Moreover, since the grip part 11 does not have a pointed part on the lower surface and the load is applied to the user's hand widely on average, the hand does not hurt.

  The first and second descending portions 12a and 12b are integrally formed at both ends in the extending direction (axial direction) of the grip portion 11 so as to bend and extend downward. More specifically, a semi-funnel-shaped side wall continuous with the semi-cylindrical peripheral wall of the grip portion 11 is bent downward and extended, and a lower end portion thereof is narrowed and closed in a pyramid shape. And the 2nd fall part 12a and 12b is provided. The thickness of the edge part of the side wall in these 1st and 2nd fall parts 12a and 12b is formed thicker than the thickness of the grip part 11. FIG. This contributes to obtaining a strength that opposes the combined force of the force applied by the load applied to the first and second string rest portions 13a and 13b and the tensile stress of the bending moment generated in this portion. Yes.

  The first and second string rest portions 13a and 13b are integrally formed with the lower ends of the first and second descending portions 12a and 12b so as to extend in the horizontal direction, respectively. More specifically, the first and second string rest portions 13a and 13b are integrated with the first and second descending portions 12a and 12b, and continuously extend in the horizontal direction. Side wall portions extending downward from the end edges are respectively provided, and first and second through holes 16a and 16b penetrating in the vertical direction are respectively provided on the top surface portions. Further, the insides of the first and second string placing portions 13a and 13b are first and second cutout openings 18a and 18b provided in the first and second insertion holes 17a and 17b, respectively. And spaces communicating with the second insertion holes 17a and 17b, respectively.

  The first and second raised portions 14a and 14b have a hollow structure, and are integrated with the first and second string rest portions 13a and 13b at positions away from the first and second lowered portions 12a and 12b. Are formed so that they are continuous and rise upward. More specifically, the first and second raised portions 14a and 14b are integrally continuous with the lower ends of the first and second string rest portions 13a and 13b, respectively, and have a pyramidal cylinder shape rising upward. Is formed. The bottom surfaces of the first and second raised portions 14a and 14b are opened, thereby forming first and second insertion holes 17a and 17b, respectively. On the other hand, the tops of the first and second raised parts 14a and 14b are sharp parts for string scooping and are closed in this embodiment. However, the tops of the first and second raised portions 14a and 14b may be opened. First and second stringing protrusions 15a and 15b protruding from the side surfaces are provided at positions slightly lower from the tops of the first and second raised portions 14a and 14b. These 1st and 2nd string stop protrusion parts 15a and 15b protrude toward the 1st and 2nd fall parts 12a and 12b, respectively. The lower surfaces of these protrusions have surfaces that are perpendicular to the side surfaces of the first and second raised portions 14a and 14b, or surfaces that are inclined upward or downward. The sharper the downward inclination angle, the greater the stringing effect.

  In the present embodiment, the hand 10 includes the first and second lowered portions 12a and 12b, the first and second string rest portions 13a and 13b, the first and second raised portions 14a and 14b, the first And the second stringing projections 15a and 15b, the first and second through holes 16a and 16b, and the first and second cutout openings 18a and 18b are perpendicular to the axis of the grip 11 in the extending direction. It is configured symmetrically with respect to the plane. By making it symmetrical in this way, the load can be uniformly distributed and distributed, so that the strength is further increased and the twist is reduced. Moreover, it becomes difficult to break the string.

  The lower ends of the first and second string rest portions 13a and 13b and the lower ends of the first and second raised portions 14a and 14b are wide, and the lower ends of the first and second lowered portions 12a and 12b are wide. Since the bottom surface 21a and 21b having a large area composed of the lower ends are in contact with the load, there is no inconvenience that the surface of the load or the wrapping paper is damaged. Furthermore, even if the hand 10 is released with the litter 10 attached to the string, it will not fall down and will be self-supporting, so handling becomes very easy. That is, the lender attached to the strap hung on the luggage tends to fall down along the luggage when released, and must be raised when holding it again, but by having the bottom areas 21a and 21b with large areas, Such a fall can be avoided. In addition, as will be described later, when a vertical string is hung on the concave portion, which is the upper surface of the grip portion 11, the handle becomes easier to fall, and there is a risk that the vertical cord may come off from the concave portion of the grip portion 11 when it falls down. Therefore, it is very important that the bottom surfaces 21a and 21b having a large area do not fall over. Further, the lower ends of the first and second string rest portions 13a and 13b and the lower ends of the first and second raised portions 14a and 14b are not only wide but also constituted by a substantially rectangular peripheral wall having a large inner area. Therefore, the force is distributed to the upper surface of the luggage, and the possibility of damaging the wrapping paper or cardboard is greatly reduced.

  In particular, the handle 10 according to the present embodiment has the first and second string placing portions 13a and 13b formed with first and second through holes 16a and 16b penetrating in the vertical direction, respectively. The strength of the part can be further increased. That is, each of the first and second string rest portions 13a and 13b has two planes in which the top surface portion is divided from a single plane by the through hole, and the side wall portion is downward from the edge of the top surface portion. It has a two-piece configuration that extends. In this way, the two-piece configuration is more rigid than the one-piece configuration, which resists bending moment and torsion, and does not deform much even if a large bending moment and torsional force are applied to the strap. . For this reason, sufficient strength can be ensured and the moldability is improved without increasing the thickness.

Furthermore, in the litter 10 in this embodiment, the first and second insertion holes 17a and 17b are formed by opening the bottom surfaces of the first and second raised portions 14a and 14b, respectively. Therefore, the concentrated load can be distributed and borne by the surrounding wall. For this reason, sufficient strength can be secured without increasing the wall thickness, and even when manufactured by injection molding, cooling does not take time, productivity is not reduced, There is no inconvenience that it increases or a cavity is formed inside. Moreover, as will be described later, the horizontal walls of the peripheral walls of the first and second raised portions 14a and 14b are U-shaped at the height positions of the top surface portions of the first and second string rest portions 13a and 13b. Since it has a shape having a lip portion 14a ₁ (see FIGS. 6C and 6D) that goes inward from the U-shaped tip instead of the shape, the first and second string rest portions 13a and 13b A strength that sufficiently opposes the combined force of the force due to the applied load and the tensile stress of the bending moment caused thereby is obtained. In addition, it is possible to cope with a load in an oblique direction because the load is distributed on the peripheral wall.

  Furthermore, the handle 10 according to the present embodiment is provided with first and second through holes 16a and 16b in the vertical direction in the first and second string rest portions 13a and 13b, respectively. In addition, since a part of the mold at the time of injection molding can penetrate the first and second through holes 16a and 16b, respectively, and can extend to the lower surfaces of the first and second stringing protrusions 15a and 15b. The lower surfaces (undercut portions) of the first and second stringing protrusions 15a and 15b can be easily manufactured.

  Furthermore, the litter 10 in this embodiment has first and second insertion holes 17a and 17b formed in the first and second raised portions 14a and 14b, and the first and second insertion holes 17a and 17b are formed. Since the first and second cutout openings 18a and 18b are formed on the wall surfaces of the insertion holes 17a and 17b, a large number of hands can be stacked in the vertical direction. That is, as shown in FIGS. 2 (B) and 4 (B), the grip portion 11, the first and second lowered portions 12a and 12b, and the first and second through holes in the upper handle 10 are provided. 16a and 16b, first and second cutout openings 18a and 18b, first and second insertion holes 17a and 17b, grip portion 11 'in lower handle 10', first and second The lower portions 12a 'and 12b', the first and second raised portions 14a 'and 14b', and the first and second stringing projections 15a 'and 15b' are inserted into the upper and lower parts, respectively. A plurality of lenders can be easily stacked in the direction. As a result, storage and transportation are easy, and the occupied volume at that time can be reduced. That is, not only storage and transportation costs are reduced, but also valuable space around the cash register of the store is not wasted. In addition, when a single hand is overwhelmed by a load, a plurality of hands can be stacked in the vertical direction. In this case, the gripping part, the lowering part, the stringing part, the rising part, etc. Because it works together, it becomes very strong against load.

  The hand 10 in this embodiment is manufactured by injection molding using a mold whose mold separation direction is the vertical direction. The material used may be any resin material that can be injection-molded and has a certain degree of strength. In many cases, for example, polypropylene is used. The thickness is 4 mm or less at the thickest part. With this thickness, even when manufactured by injection molding, cooling does not take time, productivity does not decrease, and there are inconveniences such as increased shrinkage and formation of cavities inside. Does not occur. Of course, as described above, since the load is distributed and borne, sufficient strength can be secured without increasing the thickness.

Therefore, in the present embodiment, the first and second stringing protrusions are formed by forming the first and second through holes 16a and 16b penetrating the first and second string placing portions 13a and 13b in the vertical direction. A partially male cavity mold that can mold the lower surfaces of the portions 15a and 15b is used. 6A is a structure of a part of the mold, FIG. 6B is a structure combining the mold and a part of the handle, and FIG. 6C is a part of the manufactured hand. The structure, FIG. 6D, shows a cross-sectional structure taken along line DD of FIG. In these drawings, 60 is a mold part for molding the first insertion hole 17a of the first rising part 14a, 61 is a mold part for molding the first notch opening 18a, and 62 is a first part. A mold part for molding the first through-hole 16a of one string placing part 13a, 63 is a mold part for molding the lower surface of the first stringing protrusion 15a, and 14a ₁ is a first rise. The lip part currently formed in the surrounding wall of the part 14a is each shown. By using such a mold and forming a through hole in the string placing portion, it is possible to form a string stopper protruding portion having a lower surface (undercut portion) inclined at a free angle including the horizontal direction. In order to make such an undercut portion with a punched structure, the undercut portion must be inclined to a limited angle, and it is difficult to produce a large undercut portion. For this reason, it becomes impossible to produce a string stop projection that makes it difficult to remove the string. In addition, since the lower surface due to punching comes off from the mold due to the deformation due to the elasticity of the string rest part and the raised part, it is not possible to increase the rigidity in the part of the string rest part and the raised part, and the maximum strength is required. Although the portion could not be produced robustly, such a problem does not occur according to the method of this embodiment. Further, in the present embodiment, the peripheral wall horizontal cross sections of the first and second raised portions 14a and 14b are not U-shaped, but the lip portion 14a ₁ (in the case of the first raised portion 14a) that goes inward from the U-shaped tip ), The strength due to the force applied to the first and second string rest portions 13a and 13b and the tensile stress of the bending moment caused thereby are sufficiently counter to the combined force. Is obtained.

  Next, an actual method of using the hand 10 in this embodiment will be described with reference to FIG. In addition, although the following usage method is a case where the hand 10 is attached to a strap luggage, the hand 10 of the present embodiment may be used as a handle by attaching it to a shopping bag, a shopping bag or other bags. it can.

  As a first method, the first and second raised portions 14a and 14b of the handle 10 are passed through two parallel bundles of cords 71 wound around the luggage 70, and the first and second string rest portions 13a and As a second method of passing these strings 71 through 13b, the hand 10 is placed on the luggage 70, and the string 71 is placed on the luggage 70 so as to pass through the first and second string rest portions 13a and 13b. As a third method that is suitable for fastening the machine around the machine, one end of the string 71 is tied beforehand through the first through-hole 16a or the second through-hole 16b of the hand 10, and the string 71 is attached to the load 70 in that state. As a fourth method, one end of the string 71 is placed on the first string placing part 13a or the second string placing part 13b, and the string 71 is wound around the part 2 to 3 times. One end of 71 is fixed, and in that state the string There is successively wound Method 1 around the cargo 70.

  According to the first general method, the tension of the string 71 is applied to the tips of the first and second raised portions 14a and 14b at the initial point of hooking the litter 10 on the string 71 wound around the luggage 70. In particular, when the direction is a lateral direction perpendicular to the vertical direction, a large bending moment and twisting force act on the first and second string rest portions 13a and 13b. Since each of the first and second string rest portions 13a and 13b has a two-piece structure in which the side surface portion extends downward from the top surface portion which is divided into two flat surfaces and the edge of the top surface portion, bending Since the rigidity against the moment and torsion is large, and the first and second raised portions 14a and 14b are hollow and constituted by the peripheral wall, the concentrated load is distributed on the peripheral wall. Can bear. For this reason, the rigidity with respect to the bending moment and the twisting force is sufficient, and no breakage or the like occurs. Further, since it is symmetrical, the load can be uniformly distributed and distributed, so that the strength is higher and the twist is less.

  According to the second method, since a bending moment and a twisting force are not so much applied, there is no possibility of breakage. In this case, according to the litter 10 of the present embodiment, the lower ends of the first and second string rest portions 13a and 13b and the lower ends of the first and second raised portions 14a and 14b are wide. Since the bottom surfaces 21a and 21b having a large area are formed from the lower end and the lower ends of the first and second descending portions 12a and 12b, even if the hand 10 is attached to the string, it will not fall over. Because it is independent, it is very easy to handle. Since this method is often adopted in recent binding machines, it is very convenient for the litter 10 to be independent.

  According to the third method, the user can attach the string and the lender to the luggage at the same time without preparing the string and the lender separately, and can tie it firmly without using a binding machine. Further, since only one place is required for binding, the tying operation is facilitated.

  The fourth method will be described with reference to FIG. As shown in the figure, according to this method, the upper end 71b of the upper cord 71b is lowered by placing the starting end 71a of the cord 71 on one of the straps and winding the cord 71 around the portion two to three times. The leading end of the strap is firmly fixed to the hand 10 by pressing the side string. In this state, the hand 10 is placed at the center of the upper surface of the baggage 70, the string 71 is wrapped around the baggage 70 in the order of arrows A and B, and is entangled with one rising portion of the baggage 10, and further on the baggage 70 in the order of arrows C and D. It is wound and entangled with the rising portion on the opposite side, wound around the load 70 in the order of arrows E and F, and finally a ring 71d is formed with the end 71c of the string 71 facing down, and is hung on the opposite rising portion. If this termination process is performed three or more times, the termination portion of the string 71 is surely stopped, and even if the remainder of the string is cut short, it does not come off. According to the fourth method, the string is tied only once, and unlike the case of the strings that are difficult to tie, the string is only hooked on the rising rod-like portion, Easy to work. If the string 71 is hooked on the raised part next to the arrow F and then wrapped around the baggage 70 in the reverse order of the arrows F, E, D, C, B, and A in the reverse order, the string 71 can be tied more firmly. It is. This fourth method can be performed very easily when working in the absence of a binding machine. For example, it can be used for binding newspapers and magazines at home, and provides great convenience. Various cords can be used as the cord 71, but a strap-like PP (polypropylene) film cord that is inexpensive and generally widely used is suitable for the litter 10. In that case, the strapping and the hand attachment can be performed simultaneously and inexpensively. This band-shaped PP film string slips even when it is very slippery, so if you try to tie it twice, the first tie slips and loosens, making it difficult to bind. . However, according to the fourth method using the extender of the present embodiment, the string can be entangled with the lifter at the main point and the main point using the extender, and can be drawn using the frictional force. Therefore, it is possible to tie the string in a state of being tensioned with an appropriate strength. Further, the band-shaped PP film string is not twisted and is easy to be torn, but according to the fourth method, it is constrained to the string placing portion at each stage, so that the disadvantages are also compensated. Furthermore, since the litter 10 in this embodiment has the wide bottom face 21a, it is hard to fall down and is stable, so it is very convenient when carrying out the fourth method.

  It is also possible to use a method in which the loop is wound around the luggage 70 in a double manner and the intermediate string is passed through the strap. Similarly, it may be wound multiple times such as triple and quadruple.

  Next, the relationship between the load applied to the lender by the string 71 and breakage will be described.

  As shown in FIG. 9A, when a load is applied to the string 71 passing through the string placing part 93, the grip part 91 is bent like a bow. As shown in FIG. 9B, as the load is increased, the degree of bending deformation of the grip portion 91 increases, and finally, as shown in FIG. At a position 72 connected to 93, a whitening phenomenon (a phenomenon in which the material yields to the load and becomes white and deforms) occurs, elongation occurs, and eventually breaks. Further, when attaching the litter to the string 71 wound around the luggage, the string 71 is passed only up to the tip of the rising portion 94, but if the lipper is scooped up to scoop up the string 71, the position 72 is On the other hand, a very large load is applied.

  For this reason, the conventional litter often breaks at the position 72. In a conventional lender formed of polypropylene, when the width W of the raised portion 94 is 6 mm and the thickness is 4 mm, a break occurs at the position 72 when a load of about 40 kg is applied. In order to prevent this, the width W may be increased or the thickness may be increased. However, when the width W is increased, the overall size of the litter increases, and when the thickness is increased to exceed 4 mm, as described above, there are many inconveniences such as shrinkage or cavities inside the injection molding. Furthermore, the molding cycle becomes longer and the manufacturing cost increases. Without punching, this portion needs to be flexible, so that sufficient strength cannot be provided.

  On the other hand, in the present embodiment, the rising portion 94 is hollow and an insertion hole is provided so that the load concentrated on the portion where the rising portion 94 is engaged with the string rest portion 93 is distributed and applied to the surrounding wall. It is configured to do. As a result, when the lender is molded from polypropylene and the width W of the raised portion 94 is 6 mm and the thickness is 4 mm, it is shared at two locations, and can withstand a load of about 80 kg.

  In actual use, the weight of the baggage carried by the lender is about 20 kg at the maximum. However, considering the vibration and impact during transportation, considering the strong force applied when attaching to the string, and considering the safety factor against product variations, it is desirable to withstand a load of 50-60 kg . According to the lender of this embodiment, this can be realized without increasing the width W or thickness.

  In the above-described embodiment, the planar shape of the top surface portion of each of the first and second string rest portions 13a and 13b has been described as a rectangle, but may be a trapezoid, a triangle, or other shapes. Furthermore, a shape with a clear surface may be used. Further, the first and second insertion holes 17a and 17b may be through holes, and the tops of the first and second raised portions 14a and 14b may be opened.

  All the embodiments described above are illustrative of the present invention and are not intended to be limiting, and the present invention can be implemented in other various modifications and changes. Therefore, the scope of the present invention is defined only by the claims and their equivalents.

10, 10 'Lifter 11, 11', 91 Grasping part 12a, 12a 'First lower part 12b, 12b' Second lower part 13a, 13a 'First string rest part 13b, 13b' Second string Riding part 14a, 14a '1st raising part 14b, 14b' 2nd raising part 14a ₁ lip part 15a, 15a '1st stringing protrusion 15b, 15b' 2nd stringing protrusion 16a, 16a ' First through hole 16b, 16b 'Second through hole 17a, 17a' First insertion hole 17b, 17b 'Second insertion hole 18a, 18a' First notch opening 18b, 18b 'Second cut Notch opening 19 Lateral rib 20 Vertical rib 21a, 21b Bottom surface 60, 61, 62, 63 Mold part 70 Luggage 71 String 71a Starting end 71b Upper string 71c Ending 71d Ring 72 Position 9 String put 94 up 95 string stop projecting portion

Claims (5)

  A grip portion extending in the horizontal direction, first and second descending portions that are provided continuously at both ends in the extension direction of the grip portion, and are bent downward and extend, and the first and second portions First and second string rest portions respectively provided in succession at the lower end of the descending portion and extending in the horizontal direction, and the first and second at a position away from the first and second descending portions. Hollow first and second raised portions that are respectively provided continuously to the second string rest portion and rise upward, and the first and second raised portions of the first and second raised portions. Provided on the first and second stringing projections respectively projecting in the direction of the first and second falling parts from the surface facing the lowering part, respectively, and the first and second stringing parts. First and second through holes in the vertical direction, the hollow first and second hollow Hand hung wherein the first and second insertion holes by the bottom surface of the rising portion is open are respectively formed.   The said 1st and 2nd insertion hole is comprised so that the 1st and 2nd raising part in the other hand which overlaps with an up-down direction may be inserted, respectively. The lender described.   The 1st and 2nd notch opening is each provided in a part of wall surface by the side of the said 1st and 2nd stringing part of the said 1st and 2nd insertion hole, The 2nd notch opening is each provided. The lender described in 1 or 2.   The said 1st and 2nd raising part is comprised symmetrically with respect to the perpendicular plane which passes along the axis | shaft of the extension direction of the said grip part, The proposal of any one of Claim 1 to 3 characterized by the above-mentioned. hand.   5. The lower end of the first and second string rest portions and the first and second raised portions constitute a wide bottom surface, according to claim 1. The lender.

Images