KR20230173433A - Rotational fastening structure of furniture leg pipe and lower support body using split fasteners - Google Patents

Abstract

The present invention relates to furniture having a leg tube body, such as a chair or table, and more specifically, a leg tube body having insertion grooves and fastening grooves on both sides of the lower part, a lower support body having a fastening axis at the tip, and a space between the leg tube body and the fastening axis. Each of the split fasteners to be located is provided so that the split fasteners, including the fastening shaft, can be quickly and easily coupled and fixed to the leg pipe body in a state where the split fasteners are tightly coupled to the fastening shaft of the lower support,
It is very efficient and economical due to its excellent workability and productivity as it can be fast and solidly fastened between the leg tube of a chair or table and the lower support, and the simple structure of the split fastener is a leg tube that is continuously subjected to load, rotation, or twisting. By stably maintaining the bonding force between the legs and the lower support, it is possible to extend the service life of the leg tube and the lower support, as well as the entire furniture. Anyone can assemble and fasten it easily and quickly, and can easily assemble the lower support and the lower support when necessary. Since the split fastener can be separated and reassembled from the leg tube body, the efficiency of production, maintenance, and management of various types of furniture, including chairs and tables, is very high.

Description

Rotational fastening structure of furniture leg pipe and lower support body using split fasteners}

The present invention relates to furniture having a leg tube, such as a chair or table. More specifically, the object is to achieve a mutually strong and simple connection between the lower support body, such as a caster or foot tube, which is coupled to the bottom of the furniture leg tube body, and the leg tube body. Of course, it is a connection between the furniture leg tube body and the lower support body that allows for easy disassembly and replacement, improving overall assembly and productivity as well as maintaining a mutually stable fastening state and enabling efficient repair and maintenance of the lower support body such as casters. It's about structure.

Furniture such as general chairs, chairs with backrests, or various tables are equipped with leg tubes to support and withstand the weight of the user or items placed on the top. Casters are provided at the bottom of the leg tubes for convenient movement. The provided bottom support, a bottom support with a height adjustment function, or a simple combination bottom support in the form of a trigger to prevent noise or abrasion are coupled and fixed.

In this way, the various lower supports attached to the bottom of the leg tube not only increase the convenience of use for chairs and tables, but also enable the bottom support to be separated from the leg tube body, so that in case of damage, wear, or noise, only the corresponding lower support can be replaced. By replacing them, the service life of furniture such as chairs and tables can be increased.

At this time, the connection method of the lower support to the leg tube body as described above is generally to adopt a structure by force press-fitting or screw connection, but various structural changes have been made in recent years for the purpose of improving assemblyability and securing a strong fastening force. This is a trend that is being attempted.

For example, in the case of Registered Utility Model No. 20-0305014, in the support body that can be used by inserting and fixing a wheel to a support pipe, it is fixed to the lower end of the support pipe, a protruding ridge is formed on the outer periphery of the lower end, and an insertion hole is formed in the center. a fixture, a bottom plate that is inserted into the insertion hole of the fixture and has a protrusion corresponding to the protrusion of the fixture on the outer periphery and a through hole formed in the center, and welded to the upper and lower portions of the through hole of the bottom plate, respectively. A pair of fastening nuts that are fixed and have a thread formed in the center for fastening the fixing bolt on the upper part of the wheel, and a stainless steel fixed cover that is pressed and fixed by surrounding the protruding protrusion formed on the lower outer periphery of the fixture and the protruding protrusion of the bottom plate. A support structure for wheels consisting of has been registered.

In addition, Registered Utility Model No. 20-0252821 relates to a height adjustment foot device in which a bolt-type wheel is fastened to the bottom, and a female thread is formed on the inside, and an intermediate coupling is inserted into the lower part of the hollow leg fixed to the bottom of the seat part. It includes a height adjustment foot on which a male thread is formed on the outside so that it can move up and down along the spiral of the female thread portion, and the height adjustment foot is a wheel to which a nut is fixed to the inside at the center of the lower part so that a bolt-type wheel can be fastened. A combined height adjustment foot device has been registered.

Next, in the case of Registered Utility Model No. 20-0207737, in order to increase product productivity by minimizing the number of parts of the caster fixture and simplifying the manufacturing process, a nut portion with a tapped hole formed in the inner center and multiple grooves on the outer surface was designed. A caster fixture consisting of a casing that surrounds the outer surface of the nut part and has a number of inner bending protrusions formed on the side at positions corresponding to the grooves has been registered.

In addition, in the case of Registered Utility Model No. 20-0401186, fastening screws are installed upright on the upper part of the wheel housing composed of moving wheels, and a fastening hole is formed on the bottom of the pole so that the fastening screw can be inserted, and the fastening screw is fixed by a fastening nut within the pole, and an insertion groove is formed along the periphery of the fastening screw on the upper part of the wheel housing, and an insertion hole protrudes along the periphery of the fastening hole on the lower bottom of the pole so that it can be inserted into the insertion groove. The formed wheel fastening structure has been registered.

However, the existing coupling structure of the leg tube and the lower support or caster causes the lower support connected to the leg tube to weaken over time, resulting in damage to the lower support itself or damage at the mutual joint. This has the disadvantage of making it impossible to use the entire furniture, such as a chair, due to repeated replacement of the lower support or damage to the leg tube.

In other words, most of the existing leg tubes and lower supports are made by inserting and fixing the screw shaft portion protruding above the tip of the lower support into the leg tube. In the case of lower supports such as casters, the lower part is used during repeated use of a chair or table. A phenomenon occurs in which the screw shaft at the tip of the support body becomes loose from the leg tube body due to rotational force in the reverse direction. As a result, when the bonding force between the leg tube body and the lower support body is weakened, the lower support body is affected by the user's weight, the chair or the table itself. Failure to stably support the weight causes damage to the joints.

Therefore, the weakened or lost bonding force between the leg tube body and the lower support body causes the lower support body to be quickly damaged and at the same time leads to damage to the mutual joints within the leg tube body, resulting in uneconomical problems due to frequent replacement of the lower support body and damage to the screw portion within the leg tube body. In the case of a chair or table with legs that cannot be replaced or repaired, it is extremely inefficient because the entire chair or table becomes unusable.

In particular, as is well known, the connection structure between the existing leg tube body and the lower support body is composed of a mutual screw connection method, and in order to realize such a connection structure, it is essential to form screws or nuts within the leg tube body by welding. This is because the manufacturing and production efficiency is reduced due to the preliminary work process on the leg tube body in order to combine the lower support body, and defects in the leg tube itself occur during the pre-work process for the leg tube body, which reduces the production cost for the entire furniture. It is currently acting as a cause for the rise.

Korea Registration Office 20-0305014 (registered on 2003.02.07.) Korea Registration Office 20-0252821 (registered on October 22, 2001) Korea Registration Office 20-0207737 (registered on October 11, 2000) Korea Registration Office 20-0401186 (registered on November 7, 2005)

The present invention improves the problems described above, and includes a leg pipe body having insertion grooves and fastening grooves on both sides of the lower part, a lower support body having a fastening shaft at the tip, and a split fastener to be located between the leg pipe body and the fastening shaft. Each is provided so that the split fastener including the fastening shaft can be quickly and easily fastened to the leg tube body in a state in which the split fastener is tightly coupled to the fastening shaft of the lower support,

A furniture leg using a split fastener allows for quick and solid fastening of the lower support to the leg tube by simply rotating the lower support with the split fastener assembled, as well as to quickly separate and reassemble the lower support from the leg tube. The purpose of the present invention is to provide a rotational fastening structure between the tube body and the lower support.

The present invention for achieving the above-described object includes a furniture leg tube body having a vertical insertion groove open at the bottom and a fastening groove formed on both sides of the lower part connected laterally from the tip of the insertion groove; a lower support body having a fastening shaft at the tip of which a plurality of locking grooves are spaced apart from each other upward and downward; It is divided into two sides and consists of a pair of split fasteners having a vertical axial groove on the mutually opposing surfaces and engaging protrusions spaced upward and downward within the axial groove,

The split fastener is provided with an inner guider inserted along the inner surface of the leg tube body and an outer guider assembled along the outer surface of the leg tube body, and a fitting groove into which the leg tube body is inserted is formed between these inner guiders and the outer guider, This is achieved by forming a fastening protrusion on the inner tip of the outer guider that is inserted and locked into a fastening groove along the insertion groove of the leg tube body.

The present invention is very efficient and economical with excellent workability and productivity as it can quickly and firmly fasten and fix the leg tube and the bottom support of a chair or table, etc., and the split fastener with a simple structure is continuously subject to load and rotation or twisting. By stably maintaining the bonding force between the leg tube and the bottom support, it is possible to extend the service life of the leg tube and the bottom support as well as the entire furniture. Anyone can assemble and fasten it easily and quickly if necessary. The bottom support and split fasteners can be easily separated and reassembled from the leg tube, making the production, maintenance, and management of various types of furniture, including chairs and tables, highly efficient.

Figure 1 is an overall exploded perspective view showing the mutual fastening structure according to the present invention.
Figure 2 is an exploded perspective view according to the type of bottom support in the mutual fastening structure according to the present invention.
Figure 3 is a cross-sectional view showing the entire coupling structure according to the present invention.
Figure 4 is an exploded perspective view of main parts showing the mutual fastening structure according to the present invention.
Figure 5 is a fully separated cross-sectional view showing the interlocking structure according to the present invention
Figure 6 is an exploded perspective view showing the coupling state of the lower support body and the split fastener to the leg pipe body in the mutual fastening structure according to the present invention.
Figure 7 is a cross-sectional view showing the coupling process of the lower support body to the leg tube body in the mutual fastening structure according to the present invention.
Figure 8 is an enlarged perspective view of the main part of the lower support body coupled to the leg tube body in the mutual fastening structure according to the present invention.

Additional objects, features and advantages of the present invention may be more clearly understood from the following detailed description and accompanying drawings.

Prior to a detailed description of the present invention, it should be noted that the present invention is capable of various modifications and may have various embodiments, and the examples described below and shown in the drawings are not intended to limit the present invention to specific embodiments. No, it should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

Additionally, when a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but other components may also exist in between. It must be understood that there is. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

Next, the terms used in this specification are only used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

In addition, terms such as "... unit", "... unit", and "... module" used in the specification refer to a unit that processes at least one function or operation, which is hardware or software or hardware and It can be implemented through a combination of software.

In addition, when describing with reference to the accompanying drawings, identical components will be assigned the same reference numerals regardless of the reference numerals, and overlapping descriptions thereof will be omitted. In describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

Figure 1 is an overall exploded perspective view showing the mutual fastening structure according to the present invention, Figure 2 is an exploded perspective view according to the type of bottom support in the mutual fastening structure according to the present invention, and Figure 3 is a mutual fastening structure according to the present invention. Figure 4 is a fully coupled cross-sectional view showing the interlocking structure according to the present invention, and Figure 5 is a fully separated cross-sectional view showing the mutual fastening structure according to the present invention.

As shown, the mutual fastening structure between the furniture leg tube body 100 and the lower support body 200 in the form of a caster or foot according to the present invention includes a vertical insertion groove 101 (101') with an open bottom and an insertion groove ( 101) A furniture leg tube body (100) having fastening grooves (102) (102') formed on both sides of the lower portion, which are horizontally connected from the tip of (101'). A lower support body 200 having a fastening shaft 210 having a plurality of locking grooves 211 and 211' spaced apart from each other in the upper and lower ends. As long as it is divided into two sides and has vertical axial resting grooves 301 (301') on the mutually opposing surfaces and locking protrusions (302) (302') spaced upward and downward within the axial resting grooves (301) (301'). It consists of a pair of split fasteners (300) (300').

At this time, the furniture leg tube body 100 is composed of a circular or square pipe and serves as a support angle for various chairs or tables, and the lower ends are open on both sides of the lower part of the leg tube body 100. Insertion grooves (101) (101') are formed in the vertical direction, and fastening grooves (102) (102') are formed continuously in the transverse direction from the ends of these insertion grooves (101) (101'). In other words, the insertion grooves 101 and 101' guide and guide the split fasteners 300 and 300' in the process of coupling the split fasteners 300 and 300' to the leg tube body 100. The fastening grooves 102 and 102' will serve to secure the split fasteners 300 and 300' coupled to the leg tube body 100.

In addition, the lower support body 200 is equipped with casters so that the chair or table can be moved conveniently and easily, or is made of synthetic resin material with a predetermined height to serve as a trigger for a table or storage furniture, etc. The split fasteners 300 and 300' serve to firmly bind and fix the leg tube body 100 and the lower support body 200 to each other, and are used as fastening shafts formed on the leg tube bodies 100 for various furniture. In a pre-assembled state in (210), the split fastener 300 (300') is inserted into the lower part of the leg tube body 100 together with the fastening shaft 210 and rotated, thereby forming the leg tube body 100 and the lower support body. (200) can be firmly coupled and fixed to each other.

In particular, the above-mentioned lower support body (200) is applicable to both the caster type widely used in chairs or mobile tables, and the foot type widely used in fixed chairs, fixed tables, various storage cabinets, etc., and the lower support body (200) in the form of a caster. ), it is composed of a wheel body 201 equipped with a caster 202, and a fastening shaft 210 located at the tip of the wheel body 201.

In addition, the lower support body 200 in the form of a trigger is composed of a trigger body 203 having a fastening shaft 210 located at the tip, and is fastened with metal on the upper side of the trigger body 203, which is injection molded by synthetic resin. By insert molding the shaft 210, the bonding force between them can be increased.

In this way, on the lower side of the fastening shaft 210 of the lower support body 200 in the form of a caster or foot, a support flange 212, which is circular or square in plan and has a larger outer diameter than the outer diameter of the fastening shaft 210, protrudes. It is formed so that the lower ends of the split fasteners (300) (300') described above are placed and in close contact with the support flange (212) of the fastening shaft (210) made of metal, so that they are connected through the leg pipe body (100). The support flange 212 is able to stably support the load such as a chair or table acting on the split fastener 300 (300') to prevent wear or damage to the lower support 200 due to excessive or concentrated load. This will prevent the service life from being shortened.

Next, the split fasteners 300 and 300' include inner guiders 303 and 303' inserted along the inner surface of the leg pipe body 100 and outer guiders 304 assembled along the outer surface of the leg pipe body 100. ) (304') is provided, and between the inner guiders (303) (303') and the outer guiders (304) (304'), there are insertion grooves (305) (305') into which the leg tube body (100) is inserted. It is formed at the inner ends of the outer guiders (304) (304') and is inserted and locked into the fastening grooves (102) (102') along the insertion grooves (101) (101') of the leg tube body (100). It is constructed by forming protrusions 306 and 306'.

That is, the pair of split fasteners 300 and 300' are each made semicircular in plan, and have semicircular fitting grooves 305 and 305' in the vertical direction so that the end of the leg tube body 100 is inserted. As this is formed, inside the fitting grooves 305 (305'), inner guiders (303) (303') are created that are in close contact with the inner surface of the leg tube body (100), and the fitting grooves (305) (305') On the outside, outer guiders 304 and 304' that are in close contact with the outer surface of the leg tube body 100 are respectively created.

Next, support protrusions 307 and 307', which are in close contact with the inner surface of the leg pipe body 100, are further protruded upward from the fastening protrusions 306 and 306' of the above-described split fasteners 300 and 300'. It may be configured to increase the mutually close fixing force between the leg pipe body 100 and the split fasteners 300 and 300', and the assembly pins 308 are provided on mutually opposing surfaces of the split fasteners 300 and 300'. ) and the assembly groove 309 are formed to correspond to each other, so that the split fasteners 300 and 300' can be maintained in a temporarily assembled state on the lower support 200.

In addition, vertical gripping protrusions 310 and 310' are formed radially on the outer surfaces of the outer guiders 304 and 304' of the split fasteners 300 and 300', so that the user or worker can hold them. By gripping the split fastener (300) (300'), which is capable of strong rotation by the protrusions (310) (310'), by hand, you can more easily assemble and fix it to the leg tube body (100), as well as the split fastener (300) )(300') may be able to quickly separate them through reverse rotation.

Looking sequentially at the assembly process of the lower support body 200 to the leg pipe body 100 through the fastening structure of the present invention configured as described above, first, a pair of split fastenings is performed on the fastening shaft 210 of the lower support body 200. The split fasteners 300 and (300') are temporarily assembled on the fastening shaft 210 by bringing the spheres (300) (300') into close contact with each other from the side. (301) (301') is made to the same size as the outer diameter of the fastening shaft 210, so that the inner surface of the shaft groove (301) (301') is in close contact with the outer surface of the fastening shaft 210, and at the same time, the shaft rest groove (301) The locking protrusions 302 and 302' in the grooves 301 and 301' are respectively inserted into the locking grooves 211 and 211' formed on the fastening shaft 210, thereby forming the split fasteners 300 and 300'. maintains a mutually coupled state in which it cannot move in the direction perpendicular to the fastening axis 210.

In addition, in the process of bringing the split fasteners (300) (300') into close contact with the fastening shaft (210), the assembly pins (308) and assembly grooves (309) formed on mutually opposing surfaces of the split fasteners (300) (300'). As this tight interference fit is achieved, the split fasteners 300 and 300' will be able to remain stably assembled on the fastening shaft 210 of the lower support 200.

In this assembled state, the worker attaches the separately provided binding ring (320) to the ring locking groove (311) (311') formed on the outer surface of the inner guider (303) (303') of the split fastener (300) (300'). When combined, it is possible to prevent the pair of inner guiders 303 and 303' divided from each other by the binding ring 320 from spreading outward, and the inner guiders 303 and 303' are positioned at the bottom. By continuously maintaining a stable state of close contact with the outer surface of the fastening shaft 210 of the support body 200, a firm connection between the lower support body 200 and the split fasteners 300 and 300' is maintained, as well as when sitting on a chair or using a table. This will be able to solve problems such as the fastening shaft 210 of the lower support 200 turning loose or having a gap from the split fastener 300 (300') due to loads in various directions acting during the process.

Next, as shown in FIGS. 6 and 7, the lower support body 200 with the above-mentioned split fasteners 300 and 300' assembled is coupled to the lower end of the leg tube body 100, and the assembled pieces face each other. Since the fitting grooves (305) (305') of the split fasteners (300) (300') will form a circle in plan, when the lower end of the leg tube body (100) is inserted into these fitting grooves (305) (305'), This means that the fastening protrusions 306 and 306' formed on the inner surfaces of the outer guiders 304 and 304' of the split fasteners 300 and 300' are inserted into the insertion grooves 101 of the leg tube body 100 ( All you have to do is push it upward to fit it along 101').

Therefore, while the split fasteners 300 and 300' are assembled in a tight form at the bottom of the leg tube body 100, the fastening protrusions 306 and 306' of the split fasteners 300 and 300' are inserted into the insertion grooves ( If it is caught on the tip of 101) (101'), it will no longer be able to be assembled upward, and in this state, if the split fastener 300 (300') is twisted and rotated from the leg tube body 100, the fastening protrusion 306 (306') is inserted along the fastening grooves (102) (102') of the leg pipe body (100), and the split fastener (300) (300') rotates, and the leg pipe body (100) and the split fastener (300) The lower supports 200 including (300') can be mutually coupled and fixed.

In addition, the support protrusions 307 and 307' formed to protrude upward from the inner ends of the fastening protrusions 306 and 306' are split fasteners formed as a pair while maintaining close contact with the inner surface of the leg tube body 100. Since (300) (300') continuously suppresses the opening from the leg tube body (100), even if a load is applied to the split fastener (300) (300') through the leg tube body (100), the split fastener (300) (300') will be able to maintain a firm and close fixation without opening.

In particular, in the process of rotating the fastening protrusions 306 and 306' of the above-mentioned split fasteners 300 and 300' into the fastening grooves 102 and 102' of the leg pipe body 100, the fastening grooves The locking protrusion 104 formed on (102) (102') serves to prevent the split fastener (300) (300') in the assembled state from rotating in the reverse direction and being separated from the leg tube body (100). The locking protrusion 104 is formed on one side of the lower part of the fastening grooves 102 and 102' facing the insertion grooves 101 and 101', and one side of the locking protrusion 104 is also an insertion groove. (101) It has an inclined surface 103 inclined toward (101'), and the fastening protrusion (300') of the split fastener (300) (300') is connected to the fastening groove (102) (102') of the leg tube body (100). In the process of entering 306) (306'), the fastening protrusions (306) (306') will be inserted into the fastening grooves (102) (102') in a somewhat tight shape by the inclined surface (103), and the locking protrusion (104) When the fastening protrusions 306 and 306' are inserted past the fastening grooves 102 and 102', they are divided including the fastening protrusions 306 and 306' due to the interference of the locking protrusion 104. The fastener 300 (300') will be able to maintain a fixed state in which it cannot be arbitrarily reversely rotated from the leg tube body 100.

Therefore, the lower support body 200 assembled with the split fasteners 300 and 300' can be quickly and easily assembled to the leg pipe body 100, and the lower support body 200 assembled to the leg pipe body 100 is sturdy. In addition to continuously maintaining a stable coupling and fixation state, the insertion grooves (101) (101') and fastening grooves (102) (102') formed in the leg pipe body (100) are divided into fasteners (300) (300'). Since it will be located inside the fitting groove 305 (305'), it is possible to create a simple exterior without any objection in terms of aesthetics, as shown in FIG. 8.

In addition, if replacement of the lower support 200 is necessary, hold the external guides 304 and 304' of the externally exposed split fasteners 300 and 300' by hand or use a separate tool. By rotating in the reverse direction, the fastening protrusions (306) (306') of the split fasteners (300) (300') are connected to the fastening grooves (102) (102') and insertion grooves (101) (101') of the leg tube body (100). This can be done by sequentially rotating and separating downwardly along the fastening grooves 102 and 102'. The locking protrusions 104 in the fastening grooves 102 and 102' are connected to the fastening protrusions 306 due to the strong rotational force of the split fasteners 300 and 300'. Since (306') will be partially compressed and separated from each other, even in the process of reassembling the new lower support body (200), the locking protrusion (104) will be attached to the fastening protrusion (306) (306') by the inclined surface (103). Guided insertion and prevention of reverse rotation by the locking protrusion 104 may still be effective.

Therefore, the fastening structure between the leg tube body and the lower support body of the present invention allows the lower support body 200, which is made of a caster or foot tube, to be quickly and firmly assembled to the leg tube body 100 in furniture having a leg tube body 100, such as a chair or table. The bottom support can be easily and quickly separated and reassembled from the leg tube as needed, which not only improves production and manufacturing efficiency for various types of furniture such as chairs and tables, but also contributes to significantly extending their service life. You can do it.

The embodiments described in the present specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent the entire technical idea of the present invention, so various equivalents and modifications can be substituted for them. It should be understood that there may be examples.

100: Leg tube body 101,101': Insertion groove
102,102': Fastening groove 103: Inclined surface
104: Stopper
200: lower support 201: wheel body
202: Caster 203: Trunk body
210: Fastening shaft 211,211': Locking groove
212: support flange
300,3000': Split fastener 301,301': Axial groove
302,302': Bracket protrusion 303,303': Inner guider
304,304': Outer guider 305,305': Fitting groove
306,306': Fastening protrusion 307,307': Supporting protrusion
308: assembly pin 309: assembly groove
310,310': Gripping projection 311,311': Ring locking groove
320: Binding ring

Claims (8)

A furniture leg having vertical insertion grooves (101) (101') with open bottoms and fastening grooves (102) (102') formed on both sides of the lower part connected laterally from the ends of the insertion grooves (101) (101'). A tube body (100); A lower support body 200 having a fastening shaft 210 having a plurality of locking grooves 211 and 211' spaced apart from each other in the upper and lower ends. As long as it is divided into two sides and has vertical axial resting grooves 301 (301') on the mutually opposing surfaces and locking protrusions (302) (302') spaced upward and downward within the axial resting grooves (301) (301'). It consists of a pair of split fasteners (300) (300'),
The split fasteners 300 and 300' include inner guiders 303 and 303' inserted along the inner surface of the leg tube body 100 and outer guiders 304 (304) assembled along the outer surface of the leg tube body 100. 304') is provided, and fitting grooves 305 and 305' into which the leg tube body 100 is inserted are formed between the inner guiders 303 and 303' and the outer guiders 304 and 304'. , At the inner ends of the outer guiders 304 and 304', fastening protrusions are inserted and locked into the fastening grooves 102 and 102' along the insertion grooves 101 and 101' of the leg tube body 100 ( 306) A rotational fastening structure of a furniture leg tube and a lower support body using a split fastener, characterized in that it is formed by forming (306').
According to clause 1,
At the inner lower part of the fastening grooves 102 (102') formed in the leg tube body 100, a locking protrusion 104 having an inclined surface 103 is formed to protrude, and a split portion is inserted into the fastening grooves 102 (102'). A furniture leg tube body using a split fastener, characterized in that it is configured to prevent the fastening protrusions 306 and 306' of the fasteners 300 and 300' from being arbitrarily separated from the fastening grooves 102 and 102'. and the rotational fastening structure of the lower support.
According to clause 1,
The fastening protrusions 306 and 306' of the split fasteners 300 and 300' are formed by forming support protrusions 307 and 307' that are in close contact with the inner surface of the leg tube body 100 and protrude further upward. A rotation fastening structure of a furniture leg tube body and a lower support body using a split fastener characterized by a.
According to clause 1,
The split fastener (300) (300') has assembly pins (308) and assembly grooves (309) formed on opposite surfaces of the split fasteners (300) and (300') to correspond to each other. Rotational fastening structure.
According to clause 1,
Using a split fastener, characterized in that vertical gripping protrusions 310 and 310' are formed radially on the outer surface of the outer guider 304 (304') of the split fastener (300) (300'). Rotational fastening structure of furniture leg tube and bottom support.
According to clause 1,
Ring locking grooves 311 (311') are formed on the outer surface of the inner guider (303) (303') of the split fastener (300) (300'), and the ring locking groove (311) (311') has a binding ring. (320) is formed by combining the inner guides (303) (303') for the pair of split fasteners (300) (300') by the binding ring (320) to prevent them from spreading apart. Rotational fastening structure of furniture leg tube and bottom support using a split fastener.
According to clause 1,
The lower support body 200 consists of a wheel body 201 equipped with a caster 202 and a fastening shaft 210 located at the tip of the wheel body 201,
A furniture leg tube body and a bottom support body using a split fastener are formed on the lower side of the fastening shaft 210 by further protruding a support flange 212 on which the bottom of the split fastener 300 (300') is placed. Rotational fastening structure.
According to clause 1,
The lower support body 200 consists of a trigger body 203 having a fastening shaft 210 located at the tip,
A leg tube body and a bottom support body for furniture using a split fastener, characterized in that the support flange 212 on which the bottom of the split fastener 300 (300') is placed is further protruded below the fastening shaft 210. Rotational fastening structure.

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