KR20210021770A - shelf of house and the manufacturing method - Google Patents

Abstract

The present invention relates to a home shelf and a method for manufacturing the same. More specifically, provided are the home shelf and the method for manufacturing the same, wherein the home shelf improves a structure of an existing home shelf to be installed on a wall or furniture of a bathroom or a kitchen of a house to enable various forms of daily necessities such as a shampoo or soap to be placed thereon or to enable a towel or dishcloth to be hung thereby. While a hanger rod is inserted to an assembly hole formed inside a circumferential surface of a support frame, an inserted end of the hanger rod is expanded to enable the hanger rod to be fixated and fastened to the support frame to prevent the hanger rod from being separated from the assembly hole.

Description

Household shelf and its manufacturing method {shelf of house and the manufacturing method}

The present invention relates to a household shelf and a method of manufacturing the same, and more particularly, by attaching and installing it to a bathroom or kitchen wall or furniture in a home to place various types of household goods such as shampoo or soap, or to hang towels or dishcloths. It relates to a household shelf and a manufacturing method thereof.

In general, a shelf or drawer is provided on a bathroom or kitchen wall in a home, and a shelf for placing or hanging various household items used in the bathroom is installed.

As an example of such a shelf, Korean Patent Publication No. 10-2017-0100949 has been proposed. This relates to a hanger for furniture, and a fixed base member that is fixed to furniture and the like and forms a coupling projection; A pair of connecting members each provided at both side end portions of the fixed base member and having a coupling groove into which the coupling protrusion is inserted and fixed and forming a slot; A pair of arm members coupled with one end to the slot and capable of rotating in the vertical direction; A plurality of hook rods installed on the pair of arm members to hang items; And, it includes a rotation angle holding means for maintaining the rotation angle of the arm members at a plurality of positions, the rotation angle holding means, an elastic member elastically installed in the connecting member, and one side of the arm member And a plurality of angle adjustment grooves formed at an end thereof, and a stopper positioned between the elastic member and the angle adjustment groove and positioned in any one of the angle adjustment grooves by the elastic force of the elastic member. Polygonal coupling protrusions formed at regular intervals on the inner side of the arm member and coupling grooves formed on the hanging rod are combined, and if the coupling projections are made in a polygonal shape, rotation of the hanging rod itself can be prevented. You can prevent the hanging items from coming off the hook.

However, the hanger structure requires not only to form a coupling groove on the hook rod, but also to further form a polygonal coupling protrusion at regular intervals on the inner side of the arm member, so manufacturing cost increases and the manufacture of the furniture hanger is also complicated.

Of course, as a structure for reducing manufacturing cost, as shown in FIG. 1, a shelf used for bathroom has been proposed. This is a support frame (2) that is bent into a'C' shape after cutting a hollow metal pipe to an appropriate length, and a plurality of hook bars (3) are provided at equal intervals, and a bracket ( 4) is provided and is fixed to the wall of the bathroom with fastening means such as screws. This support frame (2) is made of stainless steel, with a diameter of about 19 mm or less, and those of a thickness of 0.5 mm or less, but stainless steel materials can prevent rust from occurring due to laundry, and are inexpensive compared to ordinary steel. Although it is expensive, the cost can be reduced by minimizing the diameter and thickness, and the hanging rod (3) mounted on the support frame (2) mainly uses a round bar of 8 mm or less, and the hanging rod ( In order to connect the ends of 3), assembling holes 2a as shown in FIG. 2 are formed while maintaining a predetermined distance for a plurality of assembling through drilling or punching in general.

However, in the assembling hole 2a of the hanger frame 2, a plurality of protrusions 2b protruding irregularly in the form of a burr are formed inclined at the inner end of the assembling hole 2a. The characteristic of the assembling hole 2a is made of stainless steel. As the tube body is naturally formed through drilling or punching, the end of the hanging rod (3) is simply inserted into the assembly hole (2a) of the support frame (2), so external force is applied to the middle part of the hanging rod (3). When applied, there is a problem that the hook rod 3 is bent and easily separated.

Of course, it is possible to insert a separate separation prevention hole at the end of the hanging rod 3 and fix it to the assembly hole 2a, but in this case, there is a problem that the manufacturing cost of the shelf is increased.

Reference 1: Unexamined Patent Publication No. 10-2017-0100949

Therefore, in order to solve the problems of the prior art as described above, the present invention is installed on the wall or furniture of a bathroom or kitchen in the home to place various types of household goods such as shampoo or soap, or to hang towels or dishcloths. The structure of the home shelf is improved, and the hook rod is inserted into an assembly hole formed inside the circumference of the support frame made of metal, and the inserted end of the hook rod is extended so that the hook rod is fixed to the support frame and the hook rod is assembled. It is an object of the present invention to provide a home shelf and a method of manufacturing the same that can be prevented from being separated from.

Another object of the present invention is to more easily insert the end of the hanging rod into the assembly hole of the support frame when manufacturing a home shelf, while simply expanding the end of the inserted hook rod to improve work efficiency and reduce manufacturing cost when manufacturing a shelf. An object thereof is to provide a household shelf and a method of manufacturing the same.

The present invention for solving such a technical problem is;

In a domestic shelf comprising a support frame having an assembly hole formed in a support leg having a hollow portion therein, and a hook bar 20 having an end fitted to the assembly hole of the support leg to be coupled; The hook rod is inserted into the hollow portion through the assembly hole of the support leg with a plurality of wing portions and slit grooves formed along the circumference of the end, and the wing portion at the end of the hook rod is bent so as to spread outwardly and has a diameter greater than that of the assembly hole. It provides a home shelf, characterized in that the large expansion engaging portion is formed in the hollow portion of the support leg.

At this time, in the assembly hole of the support leg, a plurality of irregular protrusions protrude along the edge in the direction of the hollow portion of the support leg due to punching or drilling, and an insertion space is formed between the outer circumferential surface of the hook bar and the wing portion. It characterized in that a plurality of irregular protrusions formed on the edge of the insert and seated.

In addition, the present invention;

In the manufacturing method of a household shelf in which the end of a hook bar is coupled to an assembly hole formed in a support leg of a support frame having a hollow part inside, processing the wing part to form a plurality of wing parts and slit grooves while spreading the end of the hook bar outward. Step and; A hook rod assembly step of inserting the end of the hook rod in the direction of the hollow portion inside the support leg through the assembly hole of the support leg; And a hook rod binding step of forming an expansion hook having a larger diameter than an assembly hole in the hollow portion of the support leg by bending the end wing of the hook rod inserted into the hollow portion inside the support leg so as to be wide open in the outer direction of the hook rod. It also provides a method of manufacturing a home shelf.

In this case, after the wing portion processing step, before the hook rod assembly step, a taper processing step of forming a wing portion spreading outwardly of the hook rod to be closed in the center direction; characterized in that it further comprises.

The shelf according to the present invention is sturdy because the end of the hook bar is inserted into the inside through an assembly hole formed in the support frame, and the end of the inserted hook bar is expanded to form an extension hook to form a shelf, so it is robust and the bonding process is simple. This is easy.

In addition, the shelf of the present invention securely maintains the coupling part of the support frame and the hanger bar to prevent the hanger bar from being bent and separated from the assembly hole even when heavy household items are placed, thereby improving the consumer's reliability of the product and increasing the product's marketability. There is also an effect of letting go.

In particular, the shelf of the present invention has a plurality of wing portions and slit grooves formed in the longitudinal direction at its ends before the hanging rods pass through the assembly hole, but the extension locking portion is not formed, so that the hollow portion of the support leg is passed through the assembly hole of the support frame. Since it is possible to pass through when inserted, the inner diameter of the assembly hole can be minimized, so that the strength reduction of the support frame can also be minimized.

In addition, the shelf of the present invention does not use a separate part for coupling the hanger rod to the assembly hole formed in the support leg of the support frame, so the coupling structure between the hanger rod and the support frame is simple, and material costs required for manufacturing additional parts can be greatly reduced. Of course, it is possible to minimize the gap between the assembly hole of the support frame and the hanger bar, so even if you hang a towel or dishcloth on the hanger bar, it prevents it from spinning or shaking, and you can maintain a strong bond between the hanger bar and the support frame.

1 is a perspective view showing an example of a general household shelf.
2 is an enlarged view of an assembly hole formed during punching or drilling on a support frame of a general household lathe.
3A is an overall perspective view of a household shelf according to the present invention.
3B is an enlarged view illustrating an assembly hole formed in a support frame of a home shelf according to the present invention.
Figure 4 is a flow chart of manufacturing a home shelf according to the present invention.
5A and 5E are cross-sectional views sequentially showing a process of manufacturing a home shelf according to the present invention.
6 is a perspective view showing an example of a hook rod according to the present invention.
7 is a view showing a state in which the fixing key is coupled to the end of the support frame of the home shelf according to the present invention.

Hereinafter, a home shelf and a method of manufacturing the same according to the present invention may be understood by the embodiments described in detail with reference to the accompanying drawings.

Since the present invention can apply various changes and have various forms, embodiments will be described in detail in the text. However, this is not intended to limit the present invention to a specific form of disclosure, and it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

First, referring to FIGS. 3A and 3B, the home shelf 10 according to the present invention has a “c” shape, and the support frame 30 having an assembly hole 32 formed inside the opposite side of the support legs 31, Includes a hanging rod 20 that is coupled by fitting an end to the assembly hole 32 of the support frame 30, and a bracket 40 is provided at the end of the support frame 30 so as to use a fastening means such as screws. By fixing it to a wall surface such as a kitchen or a kitchen, or by fixing it to furniture, various types of household goods such as shampoo or soap can be placed. In particular, towels or dishcloths can be hung on the hanger bar 20.

At this time, the bracket 40 may be further provided with a support frame 30 ′ having a simple “c” shape in which the hook rod 20 is not coupled, and may be manufactured in a two-stage manner.

In addition, the home shelf 10 of the present invention can be manufactured as a single-stage shelf consisting of only one support frame 30, and it is obvious that all of these modifications also fall within the scope of the present invention.

At this time, the support frame 30 and the hook bar 20 may be made of metal, for example stainless steel, and it is preferable to use a round bar shape.

These assembling holes 32 are mainly formed by punching or drilling. In this case, they irregularly protrude in the direction of the hollow part 31a inside the support leg 31 along the edge of the assembling hole 32 in the form of a burr. A plurality of protrusions 32a are formed.

The present invention is manufactured in a state in which the support frame 30 and the hook bar 20 constituting the household shelf 10 are integrally coupled, and a manufacturing method thereof will be described with reference to FIGS. 4 to 6.

In the wing part processing step (S100) of FIG. 5A, a plurality of wing parts 21 and slit grooves 22 are formed around the circumference while spreading the end of the hook bar 20 made of a metal, for example, stainless steel material to the outside. As a step of forming, for this purpose, first, by providing the upper and lower fixing jig 100 having a semicircular groove into which the hanging rod 20 is inserted, the hanging rod 20 is fixed while using the fixing jig 100 Part of the end of (20) is exposed.

In addition, by placing the slit tool 200 at the exposed end of the hooking rod 20 that is fixed in position by the fixing jig 100 and moving it in the direction of the hooking rod 20, the end of the hook portion 21 and the slit It opens outward while forming the groove (22).

The slit tool 200 for processing the end of the hook rod 20 includes an insertion shaft 210 fitted into the inner diameter of the hook rod 20, and an inclined surface 220 that opens the end of the hook rod 20 to the outside. ) Is continuously formed, and a plurality of slit blades 230 are formed on the inclined surface 220 so that the insertion shaft 210 is inserted into the inner diameter of the hanging rod 20 to prevent deformation of the hanging rod 20 In addition, as the continuously formed inclined surface 220 is inserted, a plurality of wing portions 21 and slit grooves 22 are formed along the circumference of the end.

In the taper processing step (S200) of FIG. 5B, the slit tool 200 is separated from the hook rod 20, and the wing portion 21 that is spread outward of the hook rod 20 is formed to be closed in the center direction. As a step, for this purpose, first, a taper tool 300 having an inclined surface inside so that the wing part 21 that is spread outward can be inserted is provided on one side of the fixing jig 100 fixing the hook bar 20.

The tapered tool 300 is further provided with a core shaft 310 having a relatively small diameter compared to the inner diameter of the hanging rod 20 on the inside thereof, and the tapered tool 300 slides in the direction of the fixing rod, so that the core shaft ( 310) is inserted into the inner side of the hook rod 20, and the wing portion 21 spreading outward is closed along the inclined surface in the direction of the core axis inserted into the hook rod, and thus the end of the hook rod 20, that is, a slit groove ( 22) is formed wing portion 21 is formed in a tapered shape.

At this time, when the tapered tool 300 slides, the wing portion 21 of the hooking rod 20 is interrupted to the core shaft 310, thereby preventing the wing portion 21 from being excessively closed, which will be described later. Make a hole for the bending deformation of the wing part.

The hook rod assembly step (S300) of FIG. 5C is a step of inserting the tapered end of the hook rod 20 into the assembly hole 32 formed inside the support leg 31 of the support frame 30, and the support frame (30) is preferably prepared in a state supported by a base plate (not shown) operated through a pneumatic cylinder or a hydraulic cylinder.

That is, a support frame 30 having a "c" shape and having an assembly hole 32 formed on the inside facing each other of the support legs 31 on both sides is seated on the base plate, so that the operator manipulates the pneumatic cylinder or the hydraulic cylinder to It is preferable that the (31) is retracted inwardly with elasticity, and for this purpose, it is preferable that the base plate is formed with a groove in which the support leg 31 can be placed.

At this time, the wing forming jig 400 is inserted into the support leg 31 of the support frame 30, and is inserted into the hollow part 31a inside the support leg 31 through the end opening of the support leg 31. And, the fitting shaft 410 protrudes in a direction facing the assembly hole 32, and has a shape in which a wing bending groove 420 is provided on an outer circumference of the protruding fitting shaft 410.

In addition, the wing forming jig 400 is inserted into the end opening of the support leg 31, and has a plurality of fitting shafts 410 and a blade bending groove in accordance with the assembling hole 32 formed continuously at equal intervals in the support leg 31. It is preferable to have (420).

In the hook rod binding step (S400) of FIG. 5D, the end wing portion 21 of the hook rod 20 inserted through the assembly hole 32 inside the support leg 31 of the support frame 30 is placed outside the hook rod. It is a step of binding the support frame 30 and the hook bar 20 by forming an expansion catching portion 23 having a diameter larger than that of the assembly hole 32 by opening and bending in the direction.

To this end, the support legs 31 on both sides of the support frame 30 supported on the base plate are moved to have elasticity inward, and the wing forming jig 400 is inserted into the end of the hook bar 20 while the wing The part 21 is molded so as to be bent in the outward direction.

That is, the fitting shaft 410 of the wing forming jig 400 inserted into the support leg 31 is formed as a protrusion having an inclined tip, and the central hole of the wing portion 21 that is closed to the above-described taper tool 300 While being easily inserted into the wing portion 21 is opened along the outer diameter surface of the fitting shaft 410, the fitting shaft 410 is formed in the outer diameter circumference of the protruding wing shaping jig 400 It is guided through the wing bending groove 420 of the wing portion 21 is bent in the reverse direction, that is, the assembly hole 32 direction.

At this time, the wing portion 21 of the hook rod 20 is bent toward the assembling hole 32 to the outside of the hook rod 20 to form an extension hooking part 23, the extension hooking part 23 The diameter is formed larger than the diameter of the assembly hole 32 to prevent the hanging rod 20 from being separated from the assembly hole 32 to be separated. At this time, as shown in FIG. 6, the expansion engaging portion 23 is formed to be bent with an angle of more than 90° and less than 180° around the folded portion 21b.

In particular, the wing part 21 is bent toward the assembly hole 32 to the outside of the hook rod 20, and an insertion space 21a is formed between the outer circumferential surface of the hook rod 20 and the wing part 21. This insertion space (21a) is a space in which a plurality of irregular protrusions (32a) formed along the inner diameter edge of the assembly hole (32) are inserted and seated in the process of forming the assembly hole (32) through punching or drilling. When the irregular protrusion 32a is inserted and fitted into the insertion space 21a, the engaging area is increased, so that the binding force between the hook bar 20 and the support leg 31 may be further increased.

At this time, referring to FIG. 5E, when the irregular protrusion 32a of the assembly hole 32 is inserted into the insertion space 21a, the ends of the plurality of irregular protrusions 32a are hollow of the support leg 31 at the edge of the assembly hole 32. Since the lengths protruding in the direction of the part (31a) are different, the relatively long protrusion (32a) first touches the folded part (21b) when inserted into the insertion space (21a), and the end is bent or crushed to the insertion space (21a). Can be supported.

Of course, the wing portion 21 may be bent while being bent in the direction of the assembly hole 32 while being rolled in a coil shape, and the degree and shape of the wing portion 21 are determined by the material, component content, and thickness of the hook rod 20. Alternatively, it may be formed into various shapes according to the shape of the wing molding jig 400.

On the other hand, referring to Figure 5e, in a state in which the expansion hooking portion 23 of the hooking rod 20 is formed, the air and hydraulic supply of the pneumatic cylinder or the hydraulic cylinder is released, so that the support leg 31 having elasticity is initially It opens to the outside of the state, and the wing molding jig 400 is separated from the end of the hook bar 20. At this time, the base plate is moved to the initial state to return the support leg 31 to its original position, and then the wing forming jig 400 is separated through the end opening of the support leg 31, and the hook in the fixing jig 100 By separating the rod 20, the shelf 10 is completed.

Of course, the shelf 10 can be finally completed by integrally combining the bracket 40 at the end of the support frame 30 through welding, etc., and the shelf 10 is a fastening means such as screws, etc. It can be fixed to a wall surface such as a kitchen, or to a furniture to place various types of household items such as shampoo or soap. Of course, the shelf 10 of the present invention may hang towels or dishcloths on one or more hanger rods 20 provided when installed on the bathroom wall or in the kitchen.

On the other hand, Figure 7 is a view showing a state in which the fixing key is coupled to the end of the support frame of the home shelf according to the present invention. According to this, after separating the wing molding jig 400 from the support frame 30, the fixing key 50 is inserted through the end opening 31b of the support leg 31 to fix the end of the hook bar 20. It is preferable to prevent the hanging rod 20 from flowing along the assembly hole 32 as a zoom.

The fixing key 50 for this is, for example, a contact protrusion 52 formed on the outer circumferential surface of the cylindrical or cylindrical body 51 in the longitudinal direction, and at the front end of the body 51 at the end of the hook bar 20 An oblique contact portion 53 is formed to press the molded folded portion 21b.

At this time, the inclined contact portion 53 may advance while gradually pressing the folded portion 21b formed at the end of the hook bar 20 by adopting a structure having an inclined surface that is deflected toward one side toward the front end.

According to this structure, when the inclined contact portion 53 of the fixing key 50 is forcibly inserted into the hollow portion 31a through the end opening 31b of the support leg 31 using a tool or the like, the inclined contact portion 53 ) As it advances, the folded portion 21b molded at the end of the hook rod 20 installed in the assembly hole 32 closest to the end opening 31b of the support leg 31 is pressed in the direction of the assembly hole 32.

In addition, in the process of being inserted into the hollow part 31a through the end opening 31b of the support leg 31, as the fixing key 50 is formed with a contact protrusion 52 on the outer circumferential surface of the body 51 in the longitudinal direction. As the contact protrusion 52 is in close contact with one side of the inner circumferential surface of the hollow portion 31a, the fixing key 50 can be prevented from being separated from the hollow portion 31a of the support leg 31.

This is because both ends of the hook bar 20 are supported by the support legs 31 without shaking, so that the shelf can be prevented from being twisted during transportation and installation of the home shelf 10.

As described above, the above-described embodiment has been described with respect to the most preferred example of the present invention, but it is not limited to the above embodiment, and it is obvious to those skilled in the art that various modifications are possible within the scope not departing from the technical idea of the present invention. .

10: shelf 20: hook bar
21: wing part 21a: insertion space
21b: folded portion 22: slit groove
23: extension locking part 30: support frame
31: support leg 31a: hollow part
32: assembler 32a: protrusion
100: fixed jig 200: slit tool
210: insertion shaft 220: inclined surface
230: slit blade 300: taper tool
310: core shaft 400: wing molding jig
410: fitting shaft 420: wing bending groove
S100: blade processing step S200: taper processing step
S300: hook rod assembly step S400: hook rod binding step

Claims (4)

A support frame 30 having an assembly hole 32 formed in the support leg 31 having a hollow portion 31a therein, and a hanging rod 20 that is fitted and coupled to the end of the assembly hole 32 of the support leg 31 In the household shelf (10) comprising a;
The hook rod 20 is inserted into the hollow portion 31a through the assembly hole 32 of the support leg 31 in a state in which a plurality of wing portions 21 and slit grooves 22 are formed along the circumference of the end. ,
The end wing portion 21 of the hook rod 20 is bent to be wider in the outer direction of the hook rod 20 so that an expansion hook portion 23 having a diameter larger than that of the assembly hole 32 is a hollow portion of the support leg 31 Household shelf, characterized in that formed in (31a).
The method of claim 1,
A bracket 40 is provided at the end of the support frame 30, and the assembly hole 32 of the support leg 31 is plural in the direction of the hollow part 31a of the support leg 31 due to punching or drilling. Irregular protrusions (32a) are formed protruding along the edges, and an insertion space (21a) is formed between the outer circumferential surface of the hanging rod (20) and the wing (21), Household shelf, characterized in that the projection (32a) is inserted and seated.
In the manufacturing method of a home shelf in which the end of the hook bar 20 is coupled to the assembly hole 32 formed in the support leg 31 of the support frame 30 having a hollow part 31a therein,
A wing portion processing step of forming a plurality of wing portions 21 and slit grooves 22 while spreading the ends of the hook rods 20 to the outside;
A hook rod assembly step of inserting the end of the hook rod 20 in the direction of the hollow portion 31a inside the support leg 31 through the assembly hole 32 of the support leg 31;
The end wing portion 21 of the hook rod 20 inserted into the hollow portion 31a inside the support leg 31 is bent to be wider in the outer direction of the hook rod 20 to expand the diameter larger than that of the assembly hole 32 A method of manufacturing a home shelf comprising: a hook rod binding step of forming the locking portion 23 in the hollow portion 31a of the support leg 31.
The method of claim 3,
After the wing portion processing step and before the hook rod assembling step, a taper processing step of forming the wing portion 21 that is spread outwardly of the hook rod 20 to be constricted in the center direction; How to make a shelf.

Images