HK1114753B - Tool storage device - Google Patents

Description

Tool storage device

Technical Field

Taiwan priority, application No.93132333, application date 2004, 10/26 is claimed.

The present invention relates to a tool storage device for holding large hand tools such as pliers, screwdrivers, wrenches, and related tools. The device comprises a hollow upright pivot shaft with upper and lower ends, which are covered by caps. A plurality of coupling rings are mounted at different elevations on the hollow upright pivot shaft, and a plurality of support arms are coupled to the coupling rings. The storage areas of different heights are adapted to tools of different sizes.

Background

A variety of tool cases and tool holders are known. The present invention provides a universal, convertible tool storage device in which a plurality of support arms are coupled to coupling rings and are nested at different elevations about an upright hollow pivot shaft. Each support arm has proximal and distal portions and further includes a front face, a top face and a bottom face. The top and bottom surfaces penetrate through a plurality of accommodating grooves opened in the hole to store hand tools. There is no tool storage device of the prior art that has a plurality of support arms coupled to a coupling ring and nested at different heights about an upright hollow pivot shaft. A plurality of support arms are disposed at different heights on the hollow upright pivot shaft to accommodate the storage of hand tools of different sizes. In one embodiment, at least one tool rack is associated with a coupling ring that is mounted on the hollow upright pivot shaft. There is also no known in the art to provide a hollow upright pivot shaft which can be capped at both ends, and which has a cavity which can be connected to a fastening structure to secure the assembled tool storage device to a vertical surface such as a wall. The following patents are incorporated by reference for purposes of background art:

U.S. patent No. 6705655132, to assignee, discloses a tool holder comprising a multi-tiered stack of integral collars, which holder pivots about a common axis.

U.S. patent No. 6241092, entitled Vasudeva, describes a bite type support that allows a screwdriver to be placed vertically.

U.S. patent No. 458681, entitled Quitmann, discloses a support for displaying items at the point of sale.

Disclosure of Invention

A novel tool storage device is provided for storing relatively large tools, such as pliers, screwdrivers, wrenches, and the like, and related items, during routine use by craftsmen.

The tool storage device includes a hollow upright pivot shaft having upper and lower ends and capped at both ends. A plurality of coupling rings are nested at different heights within the hollow upright pivot shaft to allow the support arm to accommodate tools of different sizes. Each support arm has a proximal end and a distal end, and further includes a front surface, a bottom surface, and a plurality of vertically extending top and bottom receiving slots for receiving hand tools. In a further embodiment, the tool storage device comprises, in addition to the support arms, at least one tool rack for holding tools and a plurality of couplings such that the at least one tool rack is capable of being coupled to and rotated about the hollow upright pivot shaft. Each coupling includes a coupling ring mounted on the hollow upright pivot shaft, a flat arm for supporting a tool rack, and a neck extending outwardly from the exterior of the coupling ring to a distal end of the flat arm. In addition, a first raised portion is transversely provided at the proximal end of the flat arm and is connected to the neck portion, and a distal raised portion is transversely provided at the opposite distal end of the flat arm, the raised portions and the arm together defining a space for a tool rack.

In order to enable a technician to hang the tool storage device on a wall, the hollow upright pivot shaft is covered at each end by a top cover, each top cover has an attachment surface with an insertion hole, and a plurality of separable coupling structures each having an insertion rod connected to each top cover by way of the insertion hole; the fastening structures each include a base portion having a plurality of holes for fastening the tool storage device to an upright support. Each fastening structure comprises a connecting unit which is respectively connected with the connecting structures on the top covers at the upper end and the lower end of the vertical hollow pivot shaft.

Drawings

FIG. 1 is a partially exploded view of the tool storage device of the present invention showing the relationship between the coupling ring and the support arm.

Fig. 2 is an assembled view of fig. 1.

Fig. 3 is an exploded view of the tool storage device of the present invention.

Fig. 4 is an assembly view of fig. 3.

Fig. 5 depicts a variety of hand tools that may be received in the present tool storage device.

Fig. 6 is a view similar to fig. 5, illustrating the different angles at which the support arms of the tool storage device may be adjusted.

Fig. 7 is an exploded view of one tool rack and two support arms of the tool storage device.

Fig. 8 is an assembly view of fig. 7.

Fig. 9 shows a tool storage device in which a tool rack for holding a pair of pliers, a wrench and a cutting tool is provided, and two support arms for holding a screwdriver and the like are provided.

Fig. 10A depicts a separable coupling structure and a separable fastening structure. The device in fig. 10A is connected by two wires.

FIG. 10B depicts the connecting structure and fastening structure connected to the hollow upright pivot shaft by the top cover.

Fig. 11 is an exploded view of a detachable coupling structure and a detachable fastening structure.

Fig. 12 is a combination of a coupling structure and a fastening structure.

FIG. 13 depicts the top cover at both ends of the hollow upright pivot shaft, as shown, with the plug holes through which the latch rods connect the top cover.

Fig. 14 illustrates the tool storage device in a position where it is attached to a wall.

FIG. 15 illustrates an embodiment of the tool storage device showing the hollow upright pivot shaft, two support arms, and a tool rack attached to the hollow upright pivot shaft by a coupling ring; showing the holes, coupling structures and fastening structures on the pivot cap.

Detailed description of the preferred embodiments

The present invention relates to a tool storage device comprising a hollow upright pivot shaft having upper and lower ends, the ends being covered by caps. A plurality of coupling rings are disposed at different heights on the hollow upright pivot shaft, and a plurality of support arms are coupled to the coupling rings, each support arm having a proximal end and a distal end, and further comprising a front face, a top face and a bottom face, the top face and the bottom face being perpendicular to the front face and extending along upper and lower edges of the front face, respectively. A plurality of storage slots extend vertically through the top and bottom surfaces for storing hand tools, the storage slots having a top opening in the top wall and a bottom opening in the bottom surface.

Suitably, the upper edge of the front opening of each of the storage means of the tool storage device is open and in communication with the top opening of said storage means, and the lower edge of the front opening of each of the storage means is closed; preferably, each of the receiving slots has a neck at its top opening, each of the support arms has an anode connecting portion at its proximal end for connection to the coupling ring, each of the coupling rings has a cathode connecting portion on its outer portion for connecting the support arms to the coupling rings via the two connecting portions, suitably, the support arm anode connecting portion has a T-shaped portion, the coupling ring cathode connecting portion has an upwardly extending T-shaped recess for receiving the T-shaped connecting portion of the support arm anode connecting portion, suitably, the anode connecting portion of each of the support arms extends outwardly from the support arm proximal end at different angles, and further, a spacer ring is provided on the hollow upright pivot shaft between every two adjacent coupling rings.

In the device of the invention, a plurality of positioning grooves are distributed on the inner wall of each coupling ring at equal angles and axially extend to the top and the bottom. The hollow upright pivot shaft has a plurality of spring plates longitudinally arranged on its outer surface, each spring plate having an open end with a raised portion for engaging and retaining the positioning groove of the coupling ring.

In the tool storage device of the present invention, the hollow upright pivot shaft is provided with ribs on the surface thereof between every two spring plates and along the line of the spring plates, and the coupling ring is fixed against rotation about the pivot shaft when the ribs are engaged in the positioning grooves of the coupling ring.

In the tool storage device of the present invention, the open top and bottom of the storage pocket and the storage pocket of each support arm are tapered in a direction from the proximal end to the distal end of the support arm; while the thickness of each support arm also tapers in a direction from the proximal end to the distal end of the support arm. The tool storage device of the present invention further comprises a hollow upright pivot shaft having upper and lower ends, the upper and lower ends being covered by caps. An important feature of the present invention is that each of the caps has a coupling surface having a receptacle therein, and the structure allows the coupling member to be inserted into the receptacle and the entire tool storage device to be hung from a vertical surface such as a wall surface. A plurality of coupling rings are mounted at different heights on the hollow upright pivot shaft, and a plurality of support arms are coupled to the coupling rings. Each support arm has a proximal end and a distal end, and further includes a front face, a top face and a bottom face, the top face and the bottom face being perpendicular to the front face and extending along upper and lower edges of the front face, respectively. A plurality of storage slots extend vertically through the top and bottom surfaces for storing hand tools, the storage slots having a top opening in the top wall and a bottom opening in the bottom surface.

The present invention is also directed to such a tool storage device comprising a support arm for holding screwdrivers and similar tools, and at least one tool holder for holding pliers, wrenches and cutting tools.

The apparatus of the present invention includes an upright hollow pivot shaft having upper and lower ends, a plurality of coupling rings disposed at different heights about the hollow upright pivot shaft, and a plurality of support arms coupled to the coupling rings, each support arm having a proximal end and a distal end. Each support arm includes a front face, a top face and a bottom face, the top face and the bottom face extending in a direction perpendicular to the front face and along upper and lower edges of the front face, respectively. The supporting arm is provided with a plurality of accommodating grooves which vertically penetrate through the top surface and the bottom surface for storing hand tools. Each of the storage slots has an opening in the front, a top opening in the top surface communicating with the front opening, a bottom opening in the bottom surface, and a neck-like closure in the top opening.

The tool storage device includes at least one tool rack for holding pliers, wrenches and cutting tools. The apparatus includes a plurality of couplers to enable at least one tool holder to be coupled to a hollow upright pivot shaft. Each coupling includes a coupling ring pivotally connected to the hollow upright pivot shaft, a flat arm for supporting a tool rack, and a neck extending radially from the exterior of the coupling ring and extending to the distal end of the flat arm.

A first raised portion is transversely disposed on the proximal end of the flat arm and is connected to the neck portion, and a second raised portion is transversely disposed on the opposite distal end of the flat arm, the second raised portion forming a space for a tool rack with the proximal raised portion and the flat arm.

In one embodiment, each tool holder has a recessed area on the back surface thereof, the recessed area having a plurality of spaced apart raised portions defining a plurality of finger grooves, the plurality of finger grooves being spaced apart by the raised portions. In a preferred embodiment, the tool storage device comprises one tool rack and two support arms. Suitably, a screwdriver and associated tools may be placed on the support arm and heavier tools such as pliers, wrenches and cutting tools may be placed on the tool holder.

Preferably, the anode segments of each support arm extend outwardly from the proximal end of the support arm at different angles, and spacer rings are provided on the hollow upright pivot shaft between every two adjacent coupling rings, optionally, a clip is provided on the outer wall of the spacer rings for storing a hand tool, suitably, a plurality of locating grooves are equiangularly distributed on the inner diameter of each coupling ring and extend axially toward the top and bottom, a plurality of resilient tabs are longitudinally arranged on the outer surface of the hollow upright pivot shaft, each spring plate has an open end with a protrusion for the positioning groove of the coupling ring to be engaged with.

Suitably, the hollow upright pivot shaft is further provided with a rib between and along the line of the two spring plates, the coupling ring being secured against rotation about the pivot shaft when the rib engages the positioning groove of the coupling ring. Furthermore, the containing groove on each supporting arm and the openings at the top and the bottom of the containing groove are gradually reduced along the direction from the near end to the far end of the supporting arm; likewise, the thickness of each support arm tapers in a direction from the proximal end to the distal end of the support arm.

The present invention includes a tool storage device that can be used in conjunction with a coupling structure and a fastening structure to place the tool storage device on a wall. The storage device includes a hollow upright pivot shaft having upper and lower ends, and two end caps covered by the hollow upright pivot shaft, each cap having a coupling surface with an insertion hole. A plurality of coupling rings are mounted at different heights on the hollow upright pivot shaft for pivoting. Suitably, a plurality of support arms are associated with the coupling ring, each support arm having a proximal end and a distal end, a front face, a top face and a bottom face, the top and bottom faces extending along the upper and lower edges of the front face, respectively, in a direction perpendicular to the front face. The support arm has a plurality of storage slots extending vertically through the top and bottom surfaces for storing hand tools, each storage slot having a front opening in a front face thereof, a top opening in the top surface communicating with the front opening, a bottom opening in the bottom surface, and a neck-like closure in the top opening. The tool storage device includes at least one tool rack for holding pliers, wrenches and cutting tools. The device is provided with a plurality of couplers and a vertical hollow pivot joint which are connected with at least one tool rack. Each coupling includes a coupling ring pivotally connected to the hollow upright pivot shaft, a flat arm for supporting a tool rack, and a neck extending outwardly from an outer wall of the coupling ring and extending to a distal end of the flat arm. A first transverse ridge is provided at the proximal end of the flat arm and connected to the neck, and a second transverse ridge is provided at the opposite distal end of the flat arm, the two ridges and the flat arm together forming a space for a tool rack. Each tool holder has a recessed area on the back surface thereof, wherein a plurality of protruding portions are spaced apart from each other in the recessed area to form a plurality of finger-shaped grooves, and the plurality of finger-shaped grooves are spaced apart from each other by the protruding portions. In a preferred embodiment, the tool storage device comprises one tool rack and two support arms.

The invention discloses a tool storage device capable of being fixed on a wall surface. The device comprises a vertical hollow pivot shaft, the pivot shaft is provided with an upper end and a bottom end, the top covers at the two ends are provided with a connecting surface, and the connecting surface is provided with a jack. A plurality of separable coupling structures are connected to the top cover by a plug rod inserted into the insertion hole.

The device also provides a plurality of fastening structures including a base having a plurality of holes for fastening the tool storage device to an upright support. Each fastening structure comprises a coupling unit detachably connectable to the coupling structures on the top covers at the upper and lower ends of the hollow upright pivot shaft.

The tool storage device includes at least one tool rack having a plurality of tool links which are adapted to be connected to the hollow upright pivot shaft at a pivot joint and to at least one tool rack, each tool rack having a coupling ring pivotally connected to the hollow upright pivot shaft, a flat support arm for supporting the tool rack, and a neck portion extending outwardly from an outer wall portion of the coupling ring to a distal end of the flat support arm The tool holders are each provided with a recessed area on the back surface thereof, the recessed area having a plurality of raised portions spaced apart from one another to define a plurality of finger-like recesses, the plurality of finger-like recesses being spaced apart from one another by the raised portions.

In a preferred embodiment, the tool storage device comprises one tool rack and two support arms. The proximal end of each support arm has an anode connecting section adapted to be connected to the coupling ring, and the outer wall portion of each coupling ring has a cathode connecting section adapted to be connected to the anode connecting section of the support arm. Each support arm anode connecting section is provided with a T-shaped lug, and the coupling ring cathode connecting section is provided with an upward extending T-shaped groove for accommodating the T-shaped lug. The anodic attachment segment of each support arm can extend outwardly from the proximal end of the support arm at different angles.

The tool storage device of the present invention has spacer rings on the hollow upright pivot shaft between every two adjacent coupling rings. Alternatively, a clip may be provided on the spacer ring outer wall portion for storing a hand tool.

Each coupling ring has a plurality of locating grooves with equal angles distributed on the inner diameter and axially extending to the top and the bottom. A plurality of spring plates are longitudinally arranged on the outer surface of the hollow upright pivot shaft, each spring plate is provided with an open end, and the open end is provided with a protrusion which is convenient for the positioning groove of the coupling ring to be clamped and engaged.

The hollow upright pivot shaft also has a rib between the two spring plates and along the line of the spring plates, and the coupling ring is fixed against rotation about the pivot shaft when the rib is engaged in the positioning groove of the coupling ring.

In the tool storage device of the present invention, the storage groove of each support arm and the openings at the top and bottom of the storage groove are tapered in the direction from the proximal end to the distal end of the support arm; likewise, the thickness of each support arm tapers in a direction from the proximal end to the distal end of the support arm.

Detailed description of the drawings

Fig. 1 and 2 illustrate the relationship between the coupling ring 10 and the support arm 11. The support arm 11 is a strip-like structure having a proximal end 12 and a distal end 13, a front face 14 between the proximal end 12 and the distal end 13, a top face 15 and a bottom face 16, the top face 15 and the bottom face 16 extending between the proximal end 12 and the distal end 13 along upper and lower edges of the front face, respectively, in a direction perpendicular to the front face 15. The support arm 11 has a thickness which also tapers in a direction from the support arm proximal end 12 to the support arm distal end 13. The supporting arm 11 is provided with a plurality of accommodating grooves 17 vertically penetrating the top surface 15 and the bottom surface 16. Each open receiving channel 17 has a front opening 18 in the front 14, which opening is open at an upper end 19 and closed at a lower end 20. Each of the open receiving slots 17 has a top opening 21 in the top surface 15 which communicates with the open upper end 19 of the front opening 18. The top opening 21 of the receiving groove 17 has a neck-shaped closing-in 22. The bottom opening 23 of the receiving slot 17 tapers in size in a direction from the proximal end 12 of the support arm to the distal end 13. The support arm 11 further comprises an anode connecting portion 24 provided at the proximal end 12 of the support arm and a cathode connecting portion 25 provided at the outer wall of the coupling ring 10. The anode connecting section 24 is a T-shaped projection comprising a flat, external section 29, a narrow, internal section 28 connected to the proximal end 12 of the support arm 11. The cathode connecting section 25 of the outer wall of the coupling ring 10 has a groove 26 which is open at one end and closed at the other end to receive a flat outer connecting section 29 of the anode connecting section 24, and a narrow bore to receive a narrow inner connecting section 28 of the anode connecting section 24, the flat outer connecting section 29 being insertable into the groove 26 which is open at one end.

FIGS. 3 and 4 illustrate a plurality of coupling rings 10 and spacer rings 31 mounted at spaced intervals on the hollow upright pivot shaft 32 at different heights, the hollow upright pivot shaft 32 having upper and lower ends with caps 35 at both ends, the caps having receptacles 36 for mounting, a plurality of positioning grooves 33 equiangularly distributed on the inner diameter of each of the coupling rings 10 and the spacer rings 31 and extending in the axial direction, a clip 34 on the outer wall of each spacer ring 31, a plurality of resilient tabs 38 longitudinally arranged on the outer surface of the hollow upright pivot shaft 32, the resilient tabs 38 having a proximal end attached to the outer surface of the hollow upright pivot shaft 32 and an open distal end and provided with a protrusion 39 for facilitating the engagement and catching of the positioning grooves 33 of the coupling rings 10 or the spacer rings 31, the user being able to rotate the coupling rings 10 on the hollow upright pivot shaft 32 by manually rotating the support arms 11, thereby changing the relative angle of the support arms 11 on the pivot shaft 32 to be positioned between the positioning grooves 33, and, when the support arms 11 are separated, the protrusions 39 at the open ends of the spring strips 38 are engaged in the positioning grooves 33 of the coupling ring 10 to maintain the coupling ring 10 at the adjusted angle, further, the hollow upright pivot shaft 32 is provided with a rib 30 along the line of the spring strips 38, and the coupling ring 10 is fixed against rotation about the pivot shaft 32 when the rib is engaged in the positioning grooves 33 of the coupling ring 10.

Figures 5 and 6 illustrate various hand tools that may be received in the tool storage device. Fig. 6 illustrates different angles at which the support arms 11 of the tool storage device may be adjusted. The hand tools 40, 41 are inserted into the receiving grooves 17 of the support arms 11 or the clips 34 fixed to the outer wall of the spacer ring 31. The hand tools 40, 41 can be inserted into the receiving grooves 17 in this well-ordered manner: the working end 37 of the hand tool 40 is obliquely inserted through the front opening 18 and is passed out through the bottom opening 23, the hand tool 40 is erected, the stem 42 enters the receiving groove 17 and is positioned by the neck section 43 thereof, and the handle 44 of the hand tool 40 is fixed on the top surface 15 of the support arm 11. Each support arm 11 is rotatable about a vertical hollow pivot 32 to facilitate the placement of the hand tool 40.

Figures 7, 8 and 9 illustrate a tool holder and two support arms. As shown in fig. 7, the tool holder 45 has a recessed area on the back side thereof, and a plurality of protruding portions are spaced apart in the recessed area to form a plurality of finger grooves 57, and the plurality of finger grooves 57 are spaced apart by the protruding portions.

Fig. 9 illustrates the tool storage device comprising at least one tool rack 45 for holding pliers, wrenches and cutting tools 46 of a given storage and retrieval, and two support arms 11 for holding screwdrivers and the like 40. A coupling 47 is received on the hollow upright pivot shaft 32 for connection to a tool holder 45. The tool holder 45 may be detachably connected to the coupling 47. Fig. 7 and 8 show that the coupling member 47 comprises a coupling ring 10 connected to the hollow upright pivot shaft 32, a flat arm 48, a neck 49 (not shown), and a transversely disposed ridge 50 extending outwardly from the outer portion 51 of the coupling ring 10 to the distal end of the flat arm 48. A proximal ridge portion 52 is at the distal end of the flat arm 48 and is connected to the neck portion 49. The second raised area 50 is located at the distal end of the flat arm 48 and together with the proximal raised area 52 and the flat arm 48, forms a space for the tool rack 45. The first and second raised portions 52 and 50 are provided at their edges with first and second positioning ribs 53 and 54, respectively. The flat support arm 48 is provided with an annular projecting positioning portion 55. The tool holder 45 has a plurality of positioning slots 56 at opposite ends thereof for engaging with the positioning protrusions 53 and 54 of the coupling member 47. The back of the tool holder is provided with a plurality of positioning grooves 57 engaged with the protruding positioning portions 55.

Fig. 10A and 10B show a detachable coupling structure 59 and a detachable fastening structure 58.

The structure in fig. 10A is shown connected by two wires 60, and shows the holes 68 for attaching the device to a wall. Fig. 10B shows the top cover 35, the coupling structure 59 and the pivot shaft 32 without coupling rings.

Fig. 11 shows the coupling structure 59 and the fastening structure 58. The coupling structure 59 is provided with an insert rod 69; the fastening structure 58 is provided with two holes 61 through which the optional wire 60 passes. Two resilient locking blocks 64 are equally spaced on either side of the central guide shaft 63, each locking block 64 having a front guide surface 62. Also visible is an aperture 68, which is one of a pair of apertures through which the tool storage device may be hung from a wall.

Fig. 12 and 13 show the coupling structure 59 and the fastening structure 58 combined together, with the insertion rod 69 inserted into the top cover 35 through the insertion hole 36; also shown is a pair of holes 61 for receiving wires therethrough.

Fig. 14 illustrates the tool storage device 66 of the present invention attached to a wall through an aperture 68.

FIG. 15 shows the tool storage device 66, coupling ring 10, support arm 11, tool rack 45 and coupling 47 in an upright position; also shown are the receptacle 36, the cap 35, the coupling structure, the fastening structure 58, and the plunger 69, the fastening structure 58 is provided with two holes 61 through which the optional cord 60 passes; the fastening structure is also provided with two holes 68 for fastening the device of the invention to a wall, further, fig. 15 shows that the fastening structure 58 comprises two resilient locking blocks 64, a central guide shaft 63, two guide surfaces 62 and a coupling structure 59. in connection with fig. 7, the tool holder 45 is provided on its rear side with a recessed area in which a number of protruding parts are spaced apart, forming a number of finger grooves 57, the number of finger grooves 57 being spaced apart by the protruding parts.

Various modifications to the present invention have been contemplated. Therefore, within the scope of the appended claims, the invention may be practiced other than as specifically described.

Claims (12)

1. An apparatus for storing tools, comprising:

(a) a hollow upright pivot shaft having upper and lower ends;

(b) the upper end and the lower end of the vertical hollow pivot are provided with top covers; and

(c) each top cover comprises a connecting surface on which a jack is arranged;

(d) a plurality of separable coupling structures, each coupling structure having a plug inserted into the insertion hole of the top cover so as to be coupled with the top cover;

(e) a plurality of fastening structures, each fastening structure comprising a base portion including a plurality of holes to be fixed to an upright support;

(f) each fastening structure comprises a coupling unit which can be detachably connected with the coupling structures on the top covers at the upper end and the lower end of the vertical hollow pivot shaft.

(g) The hollow upright pivot shaft comprises a plurality of coupling rings which are respectively sleeved on the hollow upright pivot shaft at different heights, and a plurality of supporting arms which are connected with the coupling rings, wherein each supporting arm is provided with a near end, a far end, a front face, a top face and a bottom face, a plurality of accommodating grooves which vertically penetrate through the top face and the bottom face are used for accommodating hand tools, each accommodating groove is provided with a top opening on the top face, and is provided with a bottom opening on the bottom face.

(h) At least one tool rack for holding tools; and

(i) a plurality of coupling members for coupling and rotating at least one tool rack to the hollow upright pivot shaft, each of said coupling members including a coupling ring pivotally connected to the hollow upright pivot shaft, a flat arm for supporting a tool rack, a neck extending outwardly from the exterior of the coupling ring to a distal end of the flat arm, a first ridge transversely disposed at a proximal end of the flat arm and connected to the neck, and a distal ridge transversely disposed at an opposite distal end of the flat arm, the ridges and arms defining a space for accommodating a tool rack.

2. The tool storage device of claim 1, wherein each tool rack has a recessed area on a rear surface thereof, wherein the recessed area has a plurality of protruding portions spaced apart to form a plurality of finger grooves, and wherein the plurality of finger grooves are spaced apart by the protruding portions.

3. The tool storage device of claim 1, comprising a tool rack and two support arms.

4. The tool storage device of claim 1, wherein said support arm has an anode connecting portion at a proximal end thereof for connecting to a coupling ring, and a cathode connecting portion at an outer portion of said coupling ring for connecting to said anode connecting portion at said proximal end of said support arm.

5. The tool storage device of claim 4, wherein said support arm anode segment has a T-shaped connector block and said coupling ring cathode segment has an upwardly extending T-shaped recess for receiving said T-shaped connector block.

6. The tool storage device of claim 5, wherein the anode connecting segment of each support arm extends outwardly from the proximal end of the support arm at a different angle.

7. The tool storage device of claim 1, further comprising a spacer ring provided between each two adjacent coupling rings on the hollow upright pivot shaft.

8. The tool storage device of claim 7, wherein each spacer ring outer wall portion is provided with a clip for holding a hand tool.

9. The tool storage device of claim 1, wherein each coupling ring has a plurality of positioning grooves formed at equal angles on its inner wall and extending axially to the top and bottom, and a plurality of resilient strips are longitudinally arranged on the outer surface of the hollow upright pivot shaft for coupling and positioning with the coupling ring, the resilient strips having an open end with a protrusion for engaging the positioning grooves of the coupling ring.

10. The tool storage device of claim 9, wherein the hollow upright pivot shaft has a rib on the surface between every two spring strips and along the line of the spring strips, and the coupling ring is fixed against rotation about the pivot shaft when the rib is engaged in the positioning groove of the coupling ring.

11. The tool storage device of claim 1, wherein the receiving groove of each support arm and the top and bottom openings of the receiving groove are tapered in a direction from the proximal end to the distal end of the support arm.

12. The tool storage device of claim 9, wherein the thickness of each support arm tapers from the proximal end to the distal end of the support arm.