WO2009035248A1

WO2009035248A1 - Frame member for sectional shelving unit

Info

Publication number: WO2009035248A1
Application number: PCT/KR2008/005314
Authority: WO
Inventors: Chun Soon Choi
Original assignee: Chun Soon Choi
Priority date: 2007-09-14
Filing date: 2008-09-09
Publication date: 2009-03-19
Also published as: KR20090028322A; KR100919672B1

Abstract

Disclosed is a frame member for a sectional shelving unit. The frame member for the sectional shelving unit includes a body of an angle bar type having a first plate and a second plate; a plurality of first and second hooks correspondingly formed and protruded on an inside of each first and second plates at a predetermined interval; a plurality of lower coupling slits for coupling to the hooks retractably and vertically formed at each lower end portion of the first and second plates; a plurality of upper coupling slits for coupling to the hooks arranged at a predetermined interval in the lengthwise direction of the corresponding plate collinearly with each lower coupling slit; and a plurality of first and second coupling holes formed between the first and second hooks. The shelving frame can serve as the vertical frame and the horizontal frame at the same time, thereby easily manufacturing it and the shelving frame can be manufactured at a desiring arbitrary size through an appropriate cutting process.

Description

Description FRAME MEMBER FOR SECTIONAL SHELVING UNIT

Technical Field

[1] The present invention relates to a frame member for a sectional shelving unit for exhibiting all sorts of goods or articles arranged on the floor or warehouse etc. in multilayer structure, and more particularly to a frame member for a sectional shelving unit in that vertical frames and horizontal frames of the shelving unit for supporting a plurality of shelving plates in multilayer structure can be strongly assembled to each other without using separate coupling means such as bolts etc. and the shelving unit can be easily formed at an arbitrary length on the spot and so forth. Background Art

[2] Generally, a shelving unit is formed on various markets or warehouse etc. so as to exhibit all sorts of goods or articles.

[3] This shelving unit includes a latticed shelving frame and a plurality of shelving plates of a multilayer shape formed and supported on the shelving frame at a predetermined interval. Also, most of the shelving units are built in sections for easy carrying, establishing, and disjointing thereof.

[4] The knockdown shelving unit can take various forms according to the purposes thereof. The general shelving unit includes a shelving frame having a plurality of angle posts of "L" type arranged in the form of a rectangular shape, a plurality of coupling slots formed at the angle post at a predetermined interval, connecting beams horizontally coupled to the adjacent two angle posts through the coupling slots and the bolts and nuts, and shelving plates placed on the connecting beams of the shelving frame.

[5] However, in the conventional knockdown shelving unit, since the plurality of the angle posts is individually coupled to each connecting corner of the connecting beams through the bolts and nuts (8 places per one layer of the shelving plate), there are very many connecting portions. Accordingly, there are problems in that the assembling and disjointing works are very troublesome and these works is often time consuming.

[6] In the meantime, Korean Utility model registration No. 20-0391947 and US Patent

No. 5,553,549 disclose shelving units capable of constituting the shelving frame without a separate bolting work.

[7] In the Korean Utility model registration No. 20-0391947, the shelving unit includes an angle post, a plurality of latching holes vertically formed at the angle post, a pair of opposed connecting beams having latching hooks for inserting into the latching holes formed at both end portions of the connecting beams, and coupling portions having latching holes vertically bent to both end portions. Accordingly, the latching hooks formed at both end portions of the pair of connecting beams are inserted into the latching holes of the connecting portions of the connecting beams, thereby constituting the shelving frame without the separate bolting work.

[8] However, in the Korean Utility model registration No. 20-0391947, since the coupling portions corresponding to two connecting beams are coupled through fixing beams after two angle posts are coupled to the connecting beams vertically bent to both end portions thereof, the connecting beams and the fixing beams should be previously manufactured according to a predetermined standard thereof. Accordingly, because the size of the shelving frame can be determined according to the standard of the connecting beam and the fixing beam, it is difficult to actively cope with the installing place thereof. Also, according to circumstances, the empty spaces can be also existed according to any place thereof.

[9] Especially, since the shelving frame consists of the pillars, connecting beams, and fixing beams, which are different from each other in terms of shape, it is necessary to separately manufacture the various parts thereof. Accordingly, there are problems in that the fabrication process is very troublesome and the manufacturing cost is increased on account of the necessity of various molds.

[10] In the US Patent No. 5,553,549, the shelving unit includes a vertical post of an angle type, a plurality of key holes formed at the vertical post at a predetermined interval, and a pair of connecter of a "L" type vertically formed at both end portions of the horizontal member. Accordingly, the connecters are inserted into each key holes and then, pressed down, thereby constituting the shelving frame without the separate bolting work.

[11] However, in the US Patent No. 5,553,549, since the attaching connectors are formed at only both end portions of the horizontal member, the connecters should be previously manufactured according to a predetermined standard thereof. Accordingly, because the size of the shelving frame can be determined according to the standard of the connector, it is difficult to actively cope with the installing place thereof.

[12] Also, like the Korean Utility model registration No. 20-0391947, since the vertical post is different from the horizontal member in terms of shape, it is necessary to separately manufacture the various parts thereof. Accordingly, there are problems in that the fabrication process is very troublesome and the manufacturing cost is increased on account of the necessity of various molds. Disclosure of Invention Technical Problem

[13] Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a frame member for a sectional shelving unit in that a shelving frame consisting of horizontal and vertical frames can be easily assembled through any member of only one shape, whereby improving the manufacturing efficiency and reducing the manufacturing cost.

[14] Another object of the present invention is to provide a frame member for a sectional shelving unit in that vertical frames and horizontal frames of the shelving unit can be easily and strongly assembled and disjointed to each other without using separate coupling means such as bolts etc.

[15] Further another object of the present invention is to provide a frame member for a sectional shelving unit in that the shelving frame can be simply constructed at an arbitrary size as occasion demands without regard to the forming place thereof and other shelving units can be easily connected to each other. Technical Solution

[16] To accomplish the object, the present invention provides a frame member for a sectional shelving unit comprising: a body of an angle bar type having a first plate and a second plate perpendicularly bent to the first plate; a plurality of first and second hooks correspondingly formed and protruded on an inside of each first and second plates at a predetermined interval in the lengthwise direction of the body; a plurality of lower coupling slits for coupling to the hooks retractably and vertically formed at a lower end portion of at least one plate of the first and second plates and arranged at a predetermined interval in the lengthwise direction of the body; a plurality of upper coupling slits for coupling to the hooks arranged at a predetermined interval in the lengthwise direction of the corresponding plate collinearly with each lower coupling slit and having a plurality of assembling holes for allowing the hooks to be passed therethrough and communicated therewith at each lower end thereof; and a plurality of first and second coupling holes formed between the first hooks and the second hooks to be corresponded to each other.

[17] Preferably, the first hooks are located between each of the upper and lower coupling slits and reciprocally arranged with the upper and lower coupling slits in the lengthwise direction of the body.

[18] Preferably, the upper and lower coupling slits are located between the adjacent two first hooks two by two.

[19] Preferably, a plurality of third coupling holes is further formed between each of the upper coupling slits or each of the lower coupling slits.

[20] Preferably, a distance between upper ends of the upper and lower coupling slits is the same as that between the corresponding side ends of the first hooks or the second hooks [21] Preferably, each of the first and second hooks having predetermined width and length are integrally formed at the first and second plates in the lengthwise direction of the body through a lancing process. [22] Preferably, a supporting tap of each first and second hooks is in the form of an arc type in that an inner surface thereof is convexly bent toward the first and second plates. [23] Preferably, the upper coupling slit is retractably formed at a center of an upper end of the assembling hole and the upper end of the assembling hole is upward slanted toward the upper coupling slit. [24] Preferably, a plurality of connecting slots is further formed at a corner of the body at a predetermined interval in the lengthwise direction thereof.

Advantageous Effects

[25] In the frame member for the sectional shelving unit according to the present invention, there are effects in that the corresponding first and second hooks are formed on two plates of the frame member of the angle bar type at a predetermined interval respectively and the plurality of the upper and lower coupling slits coupled to the adjacent two hooks is formed on at least one plate at a predetermined interval, whereby serving as the vertical frame and the horizontal frame of the shelving frame at the same time.

[26] Also, there is another effect in that the shelving frame consisting of horizontal and vertical frames can be assembled through any member of only one shape and the vertical frames and horizontal frames of the shelving unit can be easily and strongly assembled and disjointed to each other without using separate coupling means such as bolts and so forth.

[27] Moreover, there is further another effect in that the plurality of the first and second hooks and the upper and lower coupling slits are continuously formed thereon at a predetermined interval, whereby the shelving frame can be manufactured at a desiring arbitrary size through an appropriate cutting process of the raw materials having a predetermined length on the spot.

[28] Furthermore, there is further another effect in that the plurality of the coupling holes are formed on two plates of the body at a predetermined interval, so that the completed shelving units can be strongly coupled to each other and the auxiliary shelving unit can be additionally connected to the shelving unit, thereby implementing various kinds of shelving units.

[29] Also, there is further another effect in that the independent shelving units can be easily coupled to each other on both sides by means of the connecting slots continuously formed at the corners of the body and the separate horizontal frame, so that the additionally forming loading spaces are formed between two shelving units and the length of the shelving unit can be sufficiently increased at a desired length. [30] Accordingly, the present invention can implement the safety, confidence, convenience in terms of use and cost-down.

Brief Description of the Drawings [31] The above as well as the other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: [32] FIG. 1 is a perspective view illustrating a frame member for sectional shelving unit according to the present invention; [33] FIG. 2 is a front sectional view illustrating a frame member for sectional shelving unit according to the present invention; [34] FIG. 3 is a planar view illustrating a frame member for sectional shelving unit according to the present invention;

[35] FIG. 4 is a schematic cross sectional view taken along line IV-IV of FIG. 2;

[36] FIG. 5 is an exploded perspective view illustrating an assembling method of a shelving frame using a frame member for sectional shelving unit according to the present invention;

[37] FIG. 6 is a cross sectional view illustrating a coupling status of FIG. 5;

[38] FIG. 7 is a schematic cross sectional view taken along line VH-VII of FIG. 6;

[39] FIG. 8 is a partially exploded perspective view illustrating a shelving frame using a frame member for sectional shelving unit according to the present invention; [40] FIG. 9 is a front sectional view illustrating a coupling status of horizontal and vertical frames of a shelving frame using a frame member for sectional shelving unit according to the present invention; [41] FIG. 10 is a cross sectional view illustrating a coupling status of horizontal and vertical frames of a shelving frame using a frame member for sectional shelving unit according to the present invention through bolts; [42] FIG. 11 is a schematically front sectional view illustrating a shelving frame using a frame member for sectional shelving unit according to another embodiment of the present invention; [43] FIG. 12 is an enlarged perspective view illustrating a frame member for sectional shelving unit according to further another embodiment of the present invention; [44] FIG. 13 is a perspective view illustrating a frame member for a sectional shelving unit according to further another embodiment of the present invention; and [45] FIG. 14 is an enlarged sectional view illustrating a using status of FIG. 13.

Best Mode for Carrying Out the Invention [46] A preferred embodiment of the invention will be described in detail below with reference to the accompanying drawings.

[47] FIG. 1 is a perspective view illustrating a frame member for sectional shelving unit according to the present invention, FIG. 2 is a front sectional view illustrating a frame member for sectional shelving unit according to the present invention, FIG. 3 is a planar view illustrating a frame member for sectional shelving unit according to the present invention, and FIG. 4 is a schematic cross sectional view taken along line IV-IV of FIG. 2.

[48] As shown in FIG. 1 through FIG. 4, the frame member for sectional shelving unit according to the present invention basically includes a body 10 of an angle bar type having a first plate 11 and a second plate 12 perpendicularly bent to the first plate 11.

[49] Here, the first plate 11 is the same as the second plate 12 in terms of a width thereof.

However, it is preferred that the width of the second plate 12 is smaller than that of the first plate 11.

[50] The first plate 11 includes a plurality of first hooks 21 formed and protruded on an inside thereof at a predetermined interval in the lengthwise direction of the body 10. Also, the second plate 12 includes a plurality of second hooks 21 formed and protruded on an inside thereof at a predetermined interval in the lengthwise direction of the body 10.

[51] Each of the first and second hooks 21 and 22 having predetermined width and length are integrally formed at the first and second plates 11 and 12 in the width direction through a lancing process, so that it takes the form of an approximate "L" type from a cross sectional point of view (length direction of the body 10).

[52] Each of the first and second hooks 21 and 22 include a latching portion 23 vertically protruded toward an inside of each first and second plates 11 and 12 and inserted into an upper coupling slit 31 or a lower coupling slit 32 of the first plate 11 and a supporting tap 24 for grasping the first plate 11 of another frame member together with pertinent plate (11 or 12) vertically bent from a front end of the latching portion 23 toward another plate (12 or 11).

[53] Here, each thickness of the first and second hooks 21 and 22 is located in the horizontal direction and each width of the first and second hooks 21 and 22 is located lengthwise. Accordingly, the bucking stress of the first and second hooks 21 and 22 can be increased owing to the load thereof and the movement of the frames 20 can be minimized after the assembling thereof, thereby obtaining the convenience in terms of use.

[54] In the meantime, in order to easily insert the first plate 11 of another frame member between the supporting tap 24 and the pertinent plate (11 or 12) without interference and strongly grasp the first plate 11 after the insertion thereof, preferably, the supporting tap 24 of each first and second hooks 21 and 22 is in the form of an arc type in that the inner surface thereof is convexly bent toward the first and second plates 11 and 12.

[55] Here, it is preferred that the interval between the tap 24 of the first hook 21 or the second hook 22 and the first plate 11 or the second plate 12 is identical with or slightly smaller than the thickness of the body 10 so as to strongly combine with each other.

[56] In the meantime, a plurality of lower coupling slits 32 for inserting the latching portions 23 of the first hook 21 or the second hook 22 therein is formed on a lower end of the body 10 at a predetermined interval in the lengthwise direction of the body 10. Also, a plurality of upper coupling slits 31 for inserting the latching portions 23 of another first hook 21 or another second hook 22 adjacent to the first hook 21 or the second hook 22, which is inserted into the lower coupling slit 32, is formed in the vicinity of a bending portion of the first plate 11 at a predetermined interval in the lengthwise direction of the body 10 collinearly with each lower coupling slit.

[57] Here, the distance Sl between the upper ends of the upper and lower coupling slits

31 and 32 is the same as another distance S2 between the corresponding side ends of the first hook 21 or the second hook 22.

[58] Also, the upper and lower coupling slits 31 and 32 are formed in the width direction of the first plate 11. Each lower coupling slit 31 is re tractably formed at the lower end portion of the first plate 11 to be opened. Meanwhile, a plurality of assembling holes 33 is communicated with the lower portion of each upper coupling slit 31 so as to penetrate the first hook 21 or the second hook 22 therethrough for the settlement with the first hook 21 or the second hook 22.

[59] Here, the present invention is not limited to any shape of the assembling hole 33. As shown in the drawings, the upper coupling slit 31 is retractably and upward formed at the center of the upper end 33a (vicinity of the bending portion of the body) of the assembling hole 33 of a rectangular shape.

[60] Accordingly, as shown in FIG. 5 and FIG. 8, the upper coupling slit 31 is formed at the center of the upper end 33a of the assembling hole 33, so that both end portions of the horizontal frame Ib can be accurately assembled to two hooks 21 or 22 of the right and left vertical frames Ia, which are opposed to each other. Also, as though the body 10 is cut at an arbitrary length, it can be easily assembled to the hooks 21 or 22 of two vertical frames Ia.

[61] Here, it is preferred that the upper end 33a of the assembling hole 33, that is, both side end portions of the entrance of the first hook 21 or the second hook 22, is upward slanted toward the upper coupling slit 31.

[62] Also, the upper and lower coupling slits 31 and 32 can be formed at the second plate

12 of the body 10. However, in this case, since it increases in size more than needs and the fabrication process is troublesome on account of an additional process of the upper and lower coupling slits 31 and 32, they do not need to be formed at each plate 11 and 12 at the same time.

[63] Also, a plurality of first coupling holes 41 is formed at the first plate 11 between each of the first hooks 21 and a plurality of second coupling holes 42 corresponding to each first coupling hole 41 is formed at the second plate 12 between each of the second hooks 22. Here, because the frame member serves as the vertical frame Ia or the horizontal frame Ib of the shelving frame 1, as shown in FIG. 9, the first and second coupling holes 41 and 42 takes the form of a long hole in the lengthwise direction of the body 10 so as to accept an assembling error during the assembling thereof and partially intersect each other.

[64] Accordingly, if necessary, the vertical and horizontal frames Ia and Ib can be strongly fixed to the shelving frame 1 through the coupling holes by means of bolt (not shown) and so forth or separate shelving frames 1 can be connected to each other through the coupling holes.

[65] Also, in the frame member according to the present invention, the vertical and horizontal frames Ia and Ib can be strongly fixed to the shelving frame 1 through only the first and second coupling holes 41 and 42. Preferably, as shown in FIG. 9 and FIG. 10, a plurality of third coupling holes 43 is further formed at the first plate 11 between each of the upper coupling slits 31 or each of the lower coupling slits 32, so that they can be coupled to each other by means of bolts B and nuts N.

[66] As described above, the first through third coupling holes 41 to 43 can serve to strongly fix the vertical and horizontal frames Ia and Ib to each other. Besides, they can be utilized as a coupling means for additionally attaching various accessories such as a ring for hanger etc. to the shelving frame 1.

[67] Here, where the frame member serves as the vertical frame Ia or the horizontal frame

Ib of the shelving frame 1 through the first hooks 21 formed at the first plate 11 and the upper and lower coupling slits 31 and 32, the first hooks 21 are located between each of the upper and lower coupling slits 31 and 32 and reciprocally arranged with the upper and lower coupling slits 31 and 32 in the lengthwise direction of the body 10 in order that both first coupling holes 41 or the first and second coupling holes 41 and 42 intersect each other during the assembling thereof.

[68] Also, the upper and lower coupling slits 31 and 32 are located between the adjacent two first hooks 21 two by two so as to cut the frame member without damages of the first and second hooks 21 and 22 and the upper and lower coupling slits 31 and 32.

[69] In this manner, according to the frame member for the sectional shelving unit, the corresponding first and second hooks 21 and 22 are formed on the fist and second plates 11 and 12 of the body 10 of the angle bar type at a predetermined interval re- spectively and the plurality of the upper and lower coupling slits 31 and 32 is formed on the first plate 11 at a predetermined interval. Accordingly, they can serve as the vertical frame Ia and the horizontal frame Ib of the shelving frame 1 at the same time, as shown in FIG. 5 through FIG. 7.

[70] That is, in case of the vertical frame Ia, the corresponding first and second hooks 21 and 22 formed on the fist and second plates 11 and 12 can be utilized as any assembling means with the horizontal frame Ib. Meanwhile, in case of the horizontal frame Ib, the plurality of the upper and lower coupling slits 31 and 32 formed on the first plate 11 can be utilized as any assembling means with the vertical frame Ia.

[71] An operation of the frame member for the sectional shelving unit according to the present invention will be described in detail below.

[72] Firstly, the first hooks 21 or the second hooks 22, which are formed at the first plate

11 or the second plate 12 of the vertical frame Ia, are inserted into the assembling holes 24, which are located at both end portions of the horizontal frame Ib.

[73] Then, the upper hook 21 or 22 is passed through the assembling hole 33 of the horizontal frame Ib and the lower hook 21 or 22 is transversely located below the lower end of the horizontal frame Ib.

[74] At this time, if the horizontal frame Ib is pressed down, the latching portions 23 of the adjacent two hooks 21 or 22 of the vertical frame Ib are inserted into the upper and lower coupling slits 31 and 32 of the horizontal frame Ib respectively and the supporting taps 24 of the hooks 21 or 22 are contacted with and supported by the inside surface of the first plate 11 of the horizontal frame Ib, so that they can be strongly fixed to each other.

[75] Here, since the interval d between the supporting taps 24 of the hooks 21 or 22 and the plate 11 or 12 of the body 10 is identical with or slightly smaller than the thickness of the body 10, the horizontal frame Ib can be closely and strongly inserted to the vertical frame Ia, thereby maintaining a very strong coupling status.

[76] In this manner, as shown in FIG. 8, four vertical frames Ia is coupled to the plurality of the horizontal frames Ib, so that it can obtain the shelving frame 1, which takes the form of a multilayer rack having a predetermined height.

[77] Then, the shelving plates P are placed on the second plates 12 formed at each layer of the horizontal frame Ib. At this time, if necessary, the shelving plate P can be strongly fixed to the shelving frame 1 through the second coupling holes 42 of the second plate

12 by means of screw and so forth.

[78] In the frame member for the sectional shelving unit according to the present invention, since the plurality of the first and second hooks 21 and 22 is continuously formed on the vertical frame Ia at a predetermined interval in the lengthwise direction and the plurality of the upper and lower coupling slits 31 and 32 is continuously formed on the horizontal frame Ib at a predetermined interval in the lengthwise direction, the vertical frames Ia and the horizontal frames Ib can be assembled to each other through an appropriate cutting process of the raw materials having a predetermined length on the spot without coming up to standards, whereby simply constructing the shelving frame 1 having a desired size.

[79] Also, besides the first and second hooks 21 and 22 and the upper and lower coupling slits 31 and 32, as shown in FIG. 9, the frame member for the sectional shelving unit according to the present invention further includes the plurality of the first through third coupling holes 41, 42 and 43 formed on the first and second plates 11 and 12 at a predetermined interval and coupled to each other during the assembling of the vertical and horizontal frames Ia and Ib as shown in FIG. 9 and a plurality of bolts B and nuts N for coupling to each other as shown in FIG. 10.

[80] Also, as shown in FIG. 11, the frame member for the sectional shelving unit according to the present invention further includes several auxiliary frames Ic coupled to the shelving frame 1, thereby constituting auxiliary shelving frame 2 formed at the outside of the completed shelving frame 1.

[81] As shown in FIG. 12, the frame member for the sectional shelving unit according to the present invention further includes a reinforcing frame Id for connecting the opposed horizontal frames Ib to each other and supporting the loads thereof. In this case, two second hooks 22 formed at the second plate 12 of two horizontal frames Ib are inserted into the upper and lower coupling slits 31 and 32 formed at both end portions of the first plate 11 of the reinforcing frame Id, thereby strongly assembling them through only simple work.

[82] Here, the assembling method using the reinforcing frame Id of FIG. 12 is identical with that of the vertical and horizontal frames Ia and Ib described above, except that the opposed horizontal frames Ib are horizontally connected and inserted through the reinforcing frame Id.

[83] FIG. 13 is a perspective view illustrating a frame member for a sectional shelving unit according to further another embodiment of the present invention and FIG. 14 is an enlarged sectional view illustrating a using status of FIG. 13.

[84] As shown in FIG. 13 and FIG. 14, the frame member for the sectional shelving unit according to further another embodiment of the present invention further includes a plurality of connecting slots 50 formed at a corner of the body 10 at a predetermined interval in the lengthwise direction.

[85] Also, a separate connecting frame F having a pair of hangers H inserted into the connecting slots 50 of the vertical frame Ia upward and downward is formed at both ends of two shelving frames 1, so that two shelving frames 1 are integrally coupled to each other without a separate coupling means, thereby additionally forming loading spaces between two shelving frame 1. Industrial Applicability

[86] The present invention relates to a frame member for a sectional shelving unit in that a shelving frame consisting of horizontal and vertical frames can be easily assembled through any member of only one shape, whereby improving the manufacturing efficiency and reducing the manufacturing cost.

Claims

[1] A frame member for a sectional shelving unit comprising: a body of an angle bar type having a first plate and a second plate perpendicularly bent to the first plate; a plurality of first and second hooks correspondingly formed and protruded on an inside of each first and second plates at a predetermined interval in the lengthwise direction of the body; a plurality of lower coupling slits for coupling to the hooks retractably and vertically formed at a lower end portion of at least one plate of the first and second plates and arranged at a predetermined interval in the lengthwise direction of the body; a plurality of upper coupling slits for coupling to the hooks arranged at a predetermined interval in the lengthwise direction of the corresponding plate collinearly with each lower coupling slit and having a plurality of assembling holes for allowing the hooks to be passed therethrough and communicated therewith at each lower end thereof; and a plurality of first and second coupling holes formed between the first hooks and the second hooks to be corresponded to each other.

[2] A frame member for a sectional shelving unit as claimed in claim 1, wherein the first hooks are located between each of the upper and lower coupling slits and reciprocally arranged with the upper and lower coupling slits in the lengthwise direction of the body.

[3] A frame member for a sectional shelving unit as claimed in claim 2, wherein the upper and lower coupling slits are located between the adjacent two first hooks two by two.

[4] A frame member for a sectional shelving unit as claimed in any one claim of claims 1 through 3, wherein a plurality of third coupling holes is further formed between each of the upper coupling slits or each of the lower coupling slits.

[5] A frame member for a sectional shelving unit as claimed in any one claim of claims 1 through 3, wherein a distance between upper ends of the upper and lower coupling slits is the same as that between the corresponding side ends of the first hooks or the second hooks

[6] A frame member for a sectional shelving unit as claimed in claim 1, wherein each of the first and second hooks having predetermined width and length are integrally formed at the first and second plates in the lengthwise direction of the body through a lancing process.

[7] A frame member for a sectional shelving unit as claimed in claim 6, wherein a supporting tap of each first and second hooks is in the form of an arc type in that an inner surface thereof is convexly bent toward the first and second plates.

[8] A frame member for a sectional shelving unit as claimed in claim 1, wherein the upper coupling slit is retractably formed at a center of an upper end of the assembling hole and the upper end of the assembling hole is upward slanted toward the upper coupling slit.

[9] A frame member for a sectional shelving unit as claimed in claim 1, wherein a plurality of connecting slots is further formed at a corner of the body at a predetermined interval in the lengthwise direction thereof.