JP2003061759A - Increasable rack-shape furniture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the structure of a rack-shape furniture wherein the overall size or the configuration can be changed by connect-increasing, and at the same time, the assembly or disassembly is easy, and the integral strength can be kept even when being increased. SOLUTION: This rack-shape furniture has a screw section N3, on which a thread MN is formed, at the upper section, the lower section, the left side section or the right side section of base board bodies F2 and F3. The screw section N3 is exposed so that a screw rod TB on which a thread N being screwed with the thread section N3 is formed, may be accessed from the outside of the base board body, and can be screwed with. In this case, the screw rod TB is passed through a through hole JH going through in the accessing direction of frame structures F2 and F4 of an increasing unit which is increased on the accessed side. Thus, the thread section N at the end of the screw rod TB can be screwed with the thread section N3. At the end on the opposite side of the screw rod, a thread section, which is exposed to the surface section of the increasing unit so that a thread section at the end of a screw rod having the same thread as the screw rod TB can be accessed from the outside and screwed with, is provided or is able to be fitted for the constitution.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rack-shaped furniture which can be connected and expanded and can be easily assembled and disassembled and which can be used as a shelf or a cabinet.

[0002]

2. Description of the Related Art In an office or home, there are cases where it is desired to store documents, organize small items, or display them. In such a case, a single-purpose cabinet, library, or rack of a predetermined size is used. However, in the case of a single-purpose storage container, its usage pattern is constant, which is inconvenient when it is desired to organize completely different objects side by side, and it is not possible to arrange or change it according to the user's preference. is there. For example, if you want to organize and display hardware objects such as hobbies such as cameras along with objects to be sorted such as documents that you simply need to store, a storage unit with a fixed purpose does not always meet your wishes, and the overall size and form Cannot be changed as needed. On the other hand, an assembling type shelf frame that can be added is disclosed in Japanese Patent Laid-Open No. 11-332661.

[0003]

However, in the technique disclosed in the above publication, since the pole members are simply connected by screw fastening, it can be said that the structure is weak against the lateral force of the pole members, and the structure as a shelf frame is used. It cannot be said that the strength is sufficient.
In other words, it is a problem if the connecting force between the extension part and the existing part is weakened due to the addition. Furthermore, the technique disclosed in the above publication is merely a structure that can be added only in the vertical direction. Therefore, an object of the present invention is to provide a rack-shaped furniture having a structure in which the overall size and form can be changed by connecting and adding, the assembling and disassembling are easy, and the integrated strength can be maintained even if the adding is performed. To do. Moreover, it aims at providing the rack-shaped furniture of the structure which can be expanded not only in the vertical direction but also in the lateral direction.

[0004]

In view of the above object, in claim 1, an upper part, a lower part, a left side part, or a right side part of the base body is provided.
A threaded portion having a thread formed therein, the threaded portion being exposed so that a threaded rod formed with a thread that is screwed into the threaded portion can be accessed from the outside of the base body and can be screwed; A screw rod can be inserted into a through hole penetrating in the access direction of a frame structure of an extension unit to be added to the side from which the access is made, and the screw portion at the end can be screwed into the screw portion. At the opposite end, a threaded portion of the threaded rod end portion having the same screw as the threaded rod is provided so that it can be externally accessed and screwed and is exposed on the surface of the extension unit. The feature is to provide rack furniture that can be added.

The base body is an object to which the first extension unit in the extension direction is connected, and is formed on an appropriate portion such as an upper surface portion, a lower surface portion, a left side surface portion, a right side surface portion or the like forming the base body.
There is a screw part that can access and screw the screw rod from the outside. For example, when the threaded portion is provided only on the upper portion of the base body, it can be added only above the base body, and when it is provided on the upper portion and the left and right side portions, it can be added in the upper and left and right directions. The frame structure of the extension unit that passed through the screw rod is
By simply screwing the screw rod from the outside, it can be easily connected and fixed to the base body. Furthermore, since the threaded end of the threaded rod having the same screw as the threaded rod can be provided or attached to the end opposite to the threaded rod, the threaded end can be externally screwed into the threaded rod. Other expansion units can be added to the first expansion unit. In each of these extension units, the screw rods are linearly connected in the extension direction and fixedly held to each other, and if the outermost screw rods are rotated and screwed together, all the screw rods on the line will be They are attracted to each other and firmly connected to each other by this pulling force, and the opposing force against the lateral force of the connecting screw rod is supplemented by the shape-maintaining force of the frame structure. Can be firmly maintained. When disassembling, this can be easily done by rotating the screw rod in the opposite direction to loosen it. What is a screw rod?
This is applicable not only to the case where a male screw is provided on the outer periphery but also to the case where a female screw is provided on the inner surface of the cylindrical portion, and is used in a broad sense. The term “exposed” does not necessarily mean that the protrusion is made, but it means a state in which it is accessed and screwed from the outside, and it may be made to be protruded from the frame structure, flush, or retracted.

According to a second aspect of the present invention, the form formed by the base body and each extension unit is a rectangular parallelepiped, and the axial center distance of each exposed screw portion of the base body accessible from the outside and the extension unit The expandable rack-like furniture according to claim 1, wherein the axial center intervals of the exposed screw portions are the same as each other. Since the intervals are the same, new expansion units can be connected to the base body and existing expansion units in order.

According to a third aspect of the present invention, there is provided the expandable rack-shaped furniture according to the first or second aspect, which has a threaded portion exposed at an upper portion and a side portion of the base body. Since the screw portions are exposed on the upper portion and the side portions (either one of the left and right sides may be both), it is possible to expand not only in the upper direction but also in the lateral direction, and the degree of freedom of expansion can be improved.

According to a fourth aspect of the present invention, the base unit or the extension unit in the upward direction relative to the existing extension unit is a pair of left and right side frame structures having a square shape or a U shape having a pair of vertical frame portions. The vertical frame part has a through hole in the longitudinal direction, and the through hole has a body.
A threaded rod having a thread formed at one end thereof is inserted, and the lower end thread portion having the one end portion on the lower side is a screw that can be accessed and screwed from above the base body located on the lower side or an existing extension unit. A threaded portion capable of being threadedly engaged with the threaded end of the threaded rod end having the same thread as the threaded rod from above, or can be attached to the upper end of the threaded rod. A pair of left and right side frame structures are connected by a screw rod having a screw formed at one end, and a screw portion at one end of the screw rod is formed with a screw capable of being screwed into the screw portion. The threaded portion provided on the side frame structure is screwed to the other end of the threaded rod, and the threaded portion of the threaded rod end having the same screw as the threaded rod can be access-threaded from the side. An increase according to any one of claims 1 to 3, wherein a threaded portion is provided or can be attached. It provides the possibility of rack-like furniture.

A fourth aspect of the present invention is a case in which the base body or the existing extension unit is expanded upward. As a typical extension unit, a square bracket or a U-shape having a pair of vertical frame portions is used. A pair of left and right side frame structures. The square-shaped or U-shaped frame structure forms the side shape of the extension unit, so that the rectangular parallelepiped shape of the extension unit is less likely to collapse due to external force and can be maintained. Also, together with the connecting structure of the pulling screw rods, the opposing force against the lateral force of the connecting screw rods is supplemented by the shape maintaining force of this frame structure, and the synergistic effect of these will firmly maintain the structure of the rack-shaped furniture. it can. For example, if a screw part that can be accessed and screwed from above is provided or can be attached,
At the end (head) of the screw rod, a female screw portion is provided on the upper part of an integrated head like the head of a bolt, or a male screw is provided at the end of this screw rod. It means that the nut-shaped member is screwed and attached halfway in the thickness direction, and the female screw portion is left on the upper side of the nut-shaped member.

According to a fifth aspect of the present invention, the extension unit in the left-right direction with respect to the base body or the existing extension unit has a U-shaped side frame structure having a square frame shape or a pair of vertical frame parts. The vertical frame portion has a through-hole in the longitudinal direction, and the square-shaped and U-shaped portions each have a threaded rod having a thread formed at one end thereof, and the one end is positioned downward. The lower end screw portion is formed with a screw that can be screwed with the lower end screw portion, and is screwed with an access screwable screw portion from above the pedestal or an existing expansion unit, and the upper end portion of the screw rod is A threaded portion having the same thread as the threaded rod is provided or can be mounted with a threaded portion at the end of the threaded rod accessible from above, and the side frame structure has a through hole penetrating in the left-right direction. Is provided with a threaded rod with a thread formed at one end. The threaded portion of the one end is threadedly engaged with the threaded portion of the side accessible from the side of the base body or the existing extension unit, and the other end of the threaded rod is threaded. 5. The expandable rack-shaped furniture according to any one of claims 1 to 4, wherein a threaded portion of a threaded rod end portion having the same thread as the rod is provided with or installable with a threaded portion that can be accessed and screwed from the side. I will provide a.

A fifth aspect of the present invention is a case where the base body or the existing extension unit is extended in the left or right direction. As a typical extension unit, a square frame or a pair of vertical frame portions is formed. It has a U-shaped side frame structure. The square-shaped or U-shaped frame structure forms the side shape of the extension unit, so that the rectangular parallelepiped shape of the extension unit is less likely to collapse due to external force and can be maintained. Further, together with the connecting structure of the pulling screw rods, the opposing force against the lateral force of the connecting screw rods is supplemented by the shape maintaining force of this frame structure, and the synergistic effect of these can firmly maintain the structure of the rack-shaped furniture. .

According to a sixth aspect of the present invention, the base body has a pair of left and right side frame structures each having a U shape or a U shape having a pair of vertical frame portions, and the R shape is also a U shape. The vertical frame part also has a through hole in the longitudinal direction, and the lower end screw part with the one end part on the lower side is formed by inserting a threaded rod having a thread formed at one end part into the through hole. A screw that can be screwed with the lower end screw portion is formed, and is screwed with a screw portion provided near the lower end portion of the vertical frame portion, and the upper end portion of the screw rod has the same screw as the screw rod. The threaded portion of the threaded rod end is provided with or can be fitted with a threaded portion that can be accessed and screwed from above, and the pair of left and right side frame structures are connected by a threaded rod having a thread formed at one end thereof. However, the threaded portion at one end of the screw rod is formed with a screw that can be screwed into the threaded portion, and one side frame is Screw part that is screwed into a threaded portion provided in the frame structure, and has a threaded portion at the other end of the threaded rod that has the same screw as the threaded rod, and that can be threaded from the side to access the threaded portion. 2. The device according to claim 1, wherein the device is provided or can be installed.
The rack-shaped furniture according to any one of 1 to 5 is provided.

According to a sixth aspect of the present invention, the structure of the base body is embodied in a form similar to that of an extension unit for an upward extension. The square or U-shaped frame structure forms the side portion of the base body, so that the rectangular parallelepiped shape of the base body is less likely to collapse due to an external force and can be maintained. Also, if the screw rod of the extension unit is connected to the screw rod that is inserted through this, along with the connecting structure of the pulling screw rods, the opposing force against the lateral force of the connecting screw rod is maintained in the shape of this frame structure. Compensated by force, these synergistic effects can firmly maintain the structure of the rack furniture.

According to a seventh aspect of the present invention, the externally accessible threaded screw portion may be provided on the outer side of the screw portion provided on the one side frame structure. Provide rack furniture. As a result, it can be added to either the left or right side of the base body.

According to an eighth aspect of the present invention, there is provided the rack-like furniture which can be added, according to the sixth or seventh aspect, wherein a plate member is placed and engaged with a left and right screw rod of the base body or the extension unit to form a shelf. To do. There is the convenience that it can be used as a shelf simply by placing and engaging the plate member on the left and right screw rods of the frame structure.

According to a ninth aspect of the present invention, there is provided the rack-like furniture that can be added according to the eighth aspect, in which a drawer is provided on the shelf or a door is provided on the front side of the partition forming space of the base body or the extension unit. Since the shelf is formed according to the eighth aspect, it can be used as a convenient container by using this as a base and providing a drawer or a door on the front side.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the accompanying drawings. The term "expansion unit" according to the present invention may mean a specific member for expansion or an expansion space partitioned by an expansion frame structure or the like. FIG. 1 is a perspective view of an expandable rack-shaped furniture according to the present invention, which has five storage units U1, U2, U3, U4, U5. The accommodating portion U1 is a accommodating portion based on the base body, and the others are due to the extension unit. However, the axial center intervals of the exposed screw portions, which will be described later, are the same, and the accommodating spaces have a rectangular parallelepiped shape and the dimensions are mutually different. Is the same.

To describe the extension method in relation to claims 4 and 5, the extension unit according to claim 4 is provided on the base unit storage unit U1 to form the storage unit U2, and the storage unit U1 is charged on the left side of the storage unit U1. An extension unit according to Item 5 is provided to form a storage unit U3, and an extension unit according to Claim 5 is provided on the left side of the storage unit U2 to form a storage unit U4, and the storage unit U4 is formed on the expanded storage unit U4. The storage unit U5 is formed by providing the extension unit according to the fourth aspect. Of course, you can add more to the upper or left side, and also to the right side.

In this embodiment, a door FT is attached to the front side of the accommodating portions U3 and U4, and the others are shelf-like opened. A drawer may be provided in the storage portion of these shelves. Further, as will be described later, a groove FM is provided in the side frame structure, and the storage unit U is inserted into the groove FM.
Side walls PT are detachably attached to the left side of U3 and U4. It is also attached to the right side (not shown) of the storage units U3 and U4.

FIG. 2 shows the frame structure of the base body U1 which defines the space of the storage portion U1. A right side frame structure RF having a square shape is provided on the right side, and a left side frame structure LF having a square shape is provided on the left side, and these are provided by a screw rod YB of a solid rod member extending in the left and right directions. It is connected. A pedestal D on which feet L and casters K are mounted is arranged on the lower side. In FIG. 1, only the foot L is attached, but a modified view is intentionally shown in order to show that the configuration shown in FIG. 2 is also possible. Further, the plate member P0 is placed and locked on the same screw rod YB that is provided on the pedestal and extends in the left-right direction, and the other plate member P1 is placed on the screw rod YB in the upper portion. Placed and locked, the bottom and ceiling of the storage unit U1 are formed.

The square-shaped side frame structures RF and LF are
It has a pair of vertical frame portions F1, F2 and a pair of front-back frame portions F3, F4. These are made of aluminum. 3 is an exploded view of the base body including the pedestal, FIG. 4 is an exploded view of the square-shaped side frame structure, and the right square-shaped side frame structure from the same viewpoint direction as FIG. RF is illustrated. The left square frame-shaped side frame structure LF is the same as the unit body, although the assembling direction is opposite to the right and left (front and rear) from the right side frame structure.

The vertical frame portion F2 includes a main frame member F2M and corner members F inserted in the upper and lower ends thereof.
It has 2C and F2C '. Front-back frame part F
3, F4 and main frame members F2M and F1M (described later) are aluminum drawn products and are hollow parts.
Therefore, it is lightweight and has high strength. In a state where these are assembled, a through hole JH penetrating from the upper end to the lower end is provided, and the threaded rod TB ′ of the solid rod member is inserted therethrough.
On this screw rod, a nut-shaped member N3 is formed by penetrating a female screw portion MN to be screwed with a male screw portion N provided on the upper end thereof.
It is preferable that the upper end portion is screwed and mounted, so to speak, into a bolt shape and inserted into the through hole JH.

Further, inside the main frame member F2M, the through hole JH is narrowed for guiding the screw rod, and ribs are provided in the longitudinal direction for reinforcement. Such ribs are provided in the area excluding the upper and lower ends of the main frame member F2M. The vertical frame portion F1 on the rear side is
It has a main frame member F1M and corner members F1C and F1C 'to be inserted into the upper and lower ends thereof, and is a different form in which the front-rear shape is opposite to the vertical frame part F2, but the other is the same. .

Further, the front-rear direction frame portion F3 is connected to the upper corner members F2C and F1C, and the lower front-rear direction frame portion F4 is connected to the lower corner members F2C 'and F1.
It is connected to C '. Grooves FM are provided on the lower surface side of the upper front-rear direction frame portion F3 and on the upper surface of the lower front-rear direction frame portion F4, respectively. As described with reference to FIG. 1, the side wall PT having some flexibility can be attached and detached. Can be installed on.

As can be seen by referring to FIG. 5 which is a partial longitudinal sectional view of the base body including the pedestal and FIG. 3, the front-rear direction frame portion RD on the right side of the pedestal is the main frame member RDM.
And two end members RDC to be inserted into the front and rear ends thereof. The front-rear direction frame portion LD on the left side is also the same, and is the same unit body although the disposition direction is different. These are also made of aluminum, and the left and right main frame members are hollow drawn products. Therefore, it is lightweight and has high strength.

In FIG. 5, a flange N is provided in the end member RDC of the front-rear direction frame portion RD in the vertical direction, and the through hole JH of the vertical frame portion F2 is aligned with the axial center of the flange N.
The nut-shaped member N0 with F is inserted from the lower side, and the position is held by the action of the flange. The upper end of the nut-shaped member is provided with a female screw portion MN which is screwed with a male screw portion N provided at the lower end of the screw rod TB ', and a foot L is provided on the lower portion thereof.
A female screw portion for detachably threadingly attaching the caster K or the caster K is provided.

The nut-shaped member N0 of this embodiment penetrates into the inside of the lower corner member F2C 'of the vertical frame portion F2, but stays in the end member RDC of the front-back frame portion RD of the pedestal. It can also be set to.
The female screw portion MN at the upper end of the nut-shaped member N0 is screwed into the male screw portion N at the lower end of the screw rod TB ′ with the nut-shaped member N3 inserted from above into the through hole JH of the vertical frame portion F2. Right side square frame structure RF and pedestal D
And the front-rear direction frame portion RD. For screwing work, a groove CM for engaging a coin or a driver and a wrench hole RM for engaging a hexagonal wrench are provided at the upper end of the nut-shaped member N3. Thus, the right-sided rectangular frame structure RF and the frame portion RD of the pedestal D in the front-rear direction
And at least the planar lower end surface of the vertical frame portion F2 is the end member RD of the front-back frame portion RD of the pedestal D.
The flat upper surfaces of C overlap with each other while being pressed firmly against each other to be fixed. The same applies to the left rectangular frame structure LF and the front-rear direction frame portion LD.

Further, since the female screw portion MN of the nut-shaped member N3 penetrates to the upper side, from the upper side of this base body,
A screw rod TB (see FIG. 6) having a male screw portion N of the same screw as the male screw portion N at the lower end of the vertical screw rod TB ′ can be screwed. The upper surface of the nut-shaped member N3 is flush with the surface of the square frame structure, and other nut-shaped members (including N1 and N2 described later) are also the same, but they may be projected. Also, it may be withdrawn. Unlike this form example, the internal thread portion MN may be provided on the upper end side and the lower end side of the nut-shaped member N3 without penetrating therethrough, and the partition wall portion may exist between them. In addition, a head such as a nut-shaped member N3 may be integrated with the screw rod from the beginning, and in this case, the female screw portion MN may be provided only on the upper end side of the head. Other nut-shaped members (N1, which will be described later)
(Including N2) is also the same.

Left and right holes YH are provided in the left and right directions above the square-shaped side frame structures RF and LF. In the right side square frame structure RF in FIG. 3, the holes YH are The right side surface portion has a size capable of accommodating the nut-shaped member N1, and the left side surface portion has the above-described left-right screw rod Y.
B can be inserted, but the nut-shaped member N1 cannot be inserted. The square-shaped left side frame structure LF is the same unit body as the square-shaped right side frame structure RF, but since the left and right are arranged in reverse, the left-right direction hole YH is large in the left side surface and Small on face.

The nut-shaped members N1 and N2 may have the same shape as the above-described nut-shaped member N3, or may be the same part. One of the nut-shaped members is previously screwed into the male screw portion N provided at one end of the screw rod YB, and the screw rod is inserted from the side into the hole YH of the left or right frame structure RF or LF. The other nut-shaped member is inserted in the other frame structure LF or RF, and the male screw portion N at the other end of the screw rod is screwed. The left and right frame structures RF and LF are connected to each other by using the front and rear two left and right screw rods. The fact that one of the nut-shaped members and the screw rod YB may be integrated may be the same as the above-described relationship between the vertical screw rod TB ′ and the nut-shaped member N3.

Similar to the square-shaped side frame structure, the left and right front and rear direction frame portions RD and LD of the pedestal D are also connected using the front and rear two left and right direction screw rods YB and nut-shaped members N1 and N2. It Left and right front and rear frame parts R of the pedestal D
Two front and rear screw rods YB connecting D and LD are placed and engaged with a bent plate member P0 having a notch portion KM capable of engaging these screw rods, and are engaged with the bottom plate of the accommodating portion U1. To do. Further, another bent plate member P1 having a notch portion KM that can engage with these screw rods is placed on the front and rear two left and right screw rods YB connecting the left and right frame structures RF and LF. They are engaged with each other to form the ceiling plate of the accommodating portion U1.

In order to expand the storage unit U2 on the base body constructed as described above, the left and right side frame structures RF and LF in FIG. The same structure connected to each other using the strip-shaped members N1 and N2 is provided with a vertical screw rod TB which is different from the above-mentioned vertical screw rod TB 'only by a predetermined length.
Instead of B ′, as shown in FIG. 6, the female screw portion MN exposed at the upper end portion of the vertical through hole JH provided in the side frame structure of the base body is screwed from above. . In this way, the extension unit U2 can be connected and added to the upper side of the base body. In this case, at least the planar lower end surface of the vertical frame portion of the extension unit U2 abuts against the planar upper end surface of the vertical frame portion of the base body while firmly pressing each other. That is, in one vertical direction frame portion F2, the corner members F2C 'and F2
C and C are in flat contact with each other. The same parts as the bent plate member P1 of FIG. 3 are placed and engaged with the extension unit U2 as well.

A new extension unit can be further connected and added on the existing extension unit U2. That is,
The vertical screw rod TB may be screwed onto the female screw portion MN exposed at the upper end of the existing extension unit U2. Although the screw rod TB ′ and the screw rod TB have different lengths, for example, the nut-shaped member N0 is arranged such that the lower end male screw portion N of the screw rod TB ′ is located inside the front-rear direction frame portion of the pedestal.
Can be made the same in length by forming them short. That is, in this case, one type of vertical screw rod may be manufactured.

To add the storage unit U3 to the left side of the storage unit U1, first, the left front-rear direction frame portion LD of the pedestal in FIG.
And the left and right holes YH of the same unit body including the arrangement direction
Insert the left-right screw rod YB from the left side. In this case, if the nut-shaped member N2 is screwed onto the male screw portion N on the left end of the screw rod YB, workability is improved. The male screw portion N at the right end of this screw rod is screwed into the female screw portion MN of the nut-shaped member N2 exposed on the left side of the left front-rear direction frame portion LD of the pedestal D of the existing base body. In this way, the pedestal is connected and added to the left side.

On the other hand, a new rectangular frame structure LF, which is the same as the rectangular left frame structure LF of FIG. 3 in the disposing direction, is provided in the vertical through hole JH and below the expanded pedestal. It is easy to understand by arranging the upper part of the nut-shaped member N0 inserted from above in a position where it is inserted, and referring to FIG. 7 which is a plan view with a partial cross section, it is easy to see that the left-right direction hole of the new square frame structure LF. YH to the left and right screw rod YB
Insert. In this case, as shown in (b), if the nut-shaped member N2 is screwed in advance to the male screw portion N at the left end of the screw rod YB, workability is improved. The male screw portion N at the right end of the screw rod is screwed into the female screw portion MN of the nut-shaped member N2 exposed on the left side of the left-side frame structure LF of the existing base body.

Further, a vertical screw rod TB 'in which a nut-shaped member N3 is previously screwed into the male screw portion N of the upper end from the upper side in the vertical through hole JH of this new square frame structure. And the male screw portion N at the lower end thereof is screwed into the female screw portion MN of the nut-shaped member N0. In this way, the extension unit U3 is connected and extended on the left side. Bending plate members P0 and P1 similar to those in FIG. 3 are placed and engaged with the extension unit U3, respectively.

Next, in order to add the storage unit U4 to the left side of the storage unit U2, a new square-shape is added to the female screw portion exposed at the upper end of the square-shaped frame structure LF of the existing expansion unit U3. The nut-shaped member N3 is inserted through the frame structure LF.
The vertical screw rod TB having the above-mentioned structure is screwed, and the new screw-shaped frame structure LF is attached to the female screw portion MN exposed on the left side of the R-shaped frame structure LF of another existing extension unit U2. Insert the nut-like member N on the left end
The male screw portion N at the right end of the left-right screw rod YB on which 2 is mounted is screwed. Then, the bent plate member P1 is placed and engaged.

Further, in order to add the storage unit U5 to the upper side of the storage unit U4, the left and right rectangular frame structures LF and RF described in FIG. 3 are attached to the left and right screw rods YB and the nut-shaped member N.
Prepare the unit body that is connected using 1, N2,
Vertical screw rods TB with nut-shaped members N3 are inserted from above into vertical through holes JH provided in the left and right frame structures LF and RF, and the left and right square-shaped squares of the existing extension unit U4 are inserted. The male screw portion N at the lower end portion of the vertical screw rod TB is screwed into the female screw portion MN exposed at the upper end portions of the frame structures LF and RF for connection and extension.
Then, the bent plate member P1 is placed and engaged.

The frame structure RF shown in FIG. 7A and the frame structure LF on the left side thereof are connected to each other by a screw rod YB in the left-right direction.
And the nut-shaped members N1 and N2 are connected to each other by U1 and U2. The frame structure LF in the center of the figure and the frame structure LF on the left side of the frame structure LF are connected to each other by a horizontal screw rod YB.
The storage parts connected with the nut-shaped members N2 and N2 are 3, U4. The storage unit U5 is the storage unit U1,
It has the same structure as U2. Since the female screw MN is exposed at the upper end and left and right sides of the furniture that has been connected and added in this way, it is possible to attach appropriate metal fittings by using this and fix it to the ceiling or wall surface, which can be used as an earthquake countermeasure. it can. Also, a metal fitting for hooking a small item can be easily attached.

In the above, the extension is made on the left side of the base body, but it can also be made on the right side by utilizing the female screw portion MN of the nut-shaped member N1 exposed on the right side. Further, as an additional method, for example, when a plurality of storage units of three stages are to be added in a plurality of rows in the left-right direction, three B-shaped frame structures are connected in advance in the up-down direction, and this is used as a handling unit. It is also possible to improve workability. Furthermore, since the extension unit is composed of the side frame structure, the thin screw rod, and the small nut-shaped member, the side frame structures are overlapped so that their spreading surfaces face each other, and the inner side formed by the partition is formed. If a screw rod or a nut-shaped member is placed in or near the space, it can be packed very compactly.

Further, in the above, the side frame structure is used as a square frame shape, but it is also possible to use a U-shaped side frame structure in which the lower front-rear direction frame portion F4 is omitted. it can. The side frame structure uses the corner member as a separate component, but these may be integrated with the main frame member to form a component, or may be integrated with the front-rear frame portion to form a component. You may.

Furthermore, in the above description, the threaded rod is provided with a male thread at its end, but a female thread may be provided on the inner circumference of the cylindrical portion, and if threads are provided at both ends, one is a male thread. Yes, the other can be a female thread on the inner circumference of the cylindrical portion. Of course, the corresponding mating screw part is a screw that can be screwed into them. Also, as described above, the nut-shaped member is configured like the head of a bolt integrated with one end of the screw rod,
A hole may be provided on the outer side portion (upper side portion) of the head portion, and the female screw MN may be provided on the inner periphery thereof.

[0043]

As is apparent from the above description, according to the present invention, the overall size and form can be changed by connecting and adding, and the assembling and disassembling are easy, and the integrated strength can be maintained even if the addition is made. It is possible to provide a rack-shaped furniture having a structure capable of performing.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a rack-shaped furniture according to the present invention.

FIG. 2 is a perspective view of a base body including a pedestal.

FIG. 3 is an exploded view of FIG.

FIG. 4 is an exploded view of a side frame structure.

FIG. 5 is a partial vertical sectional view of FIG.

FIG. 6 is a partial vertical cross-sectional view showing a state in which an extension unit is added on the base body.

FIG. 7 is a plan view of a partial cross section of FIG. 1 and an exploded view of some components.

[Explanation of symbols]

D pedestal LF left side frame structure RL right side frame structure N Screw rod end male thread MN Female thread of nut-shaped member N1, N2, N3 Nut-shaped member TB ', TB Vertical screw rod YB left and right screw rod

Continued front page    (72) Inventor Tetsuya Kano             Limited company 3-21 Takada, Toshima-ku, Tokyo             Hiro Design Institute (72) Inventor Yoshiro Kakizaki             Kyoeiko, 1-2-18 Omorikita, Ota-ku, Tokyo             Business (72) Inventor Tatsuo Shiotani             Kyoeiko 1-18-2 Omorikita, Ota-ku, Tokyo             Business F term (reference) 3B054 AA01 BA06 BA10 BA14 BC04                       BC06 BC14 CA02 EA02 EA03                       FA01                 3B060 BA01 BB01 BC02 BD01 BD02                       BE01 BF02                 3J024 AA50 CA03 CA05 CA11 CA19

Claims (9)

[Claims] 1. A base member having a threaded portion on an upper part, a lower portion, a left side portion, or a right side portion, the threaded portion having a screw threaded to be engaged with the threaded portion. Is exposed from the outside of the base body so that it can be screwed, and the screw rod is inserted into the through hole that penetrates in the access direction of the frame structure of the extension unit to be added on the side from which it is accessed. The threaded portion of the end can be screwed into the threaded portion,
Is there a threaded portion at the opposite end of the threaded rod so that the threaded portion of the threaded rod end having the same thread as the threaded rod can be externally accessed and screwed and is exposed on the surface of the extension unit? Alternatively, rack-shaped furniture that can be added, which can be installed. 2. The partition formed by the base body and each expansion unit is a rectangular parallelepiped, and the axial center interval of each exposed screw portion of the base body accessible from the outside and each exposed screw of the expansion unit The expandable rack-shaped furniture according to claim 1, wherein the axial centers of the parts are the same as each other. 3. The rack-like furniture that can be added according to claim 1 or 2, further comprising a threaded portion exposed at an upper portion and a side portion of the base body. 4. The base unit or the upward extension unit with respect to the existing extension unit has a pair of left and right side frame structures in a U shape or a U shape having a pair of vertical frame portions. Both the square shape and the square shape have a through hole in the up-down direction in the longitudinal direction, and a threaded rod having a thread formed at one end is inserted through the through hole, and the one end is located at the lower side. The lower end threaded portion can be screwed into a threaded portion accessible from above the base body located below or the existing extension unit, and the upper end portion of the threaded rod is the same as the threaded rod. The threaded portion of the threaded rod end having the thread is provided with or can be fitted with a threaded portion that can be accessed and screwed from above, and the pair of left and right side frame structures is provided with a threaded end. It is connected by a rod, and the threaded portion at one end of the threaded rod can be screwed into the threaded portion. A threaded portion is formed and is screwed into a threaded portion provided on one of the side frame structures, and the threaded portion of the threaded rod end having the same thread as the threaded rod is attached to the other end of the threaded rod. The rack-shaped furniture according to any one of claims 1 to 3, wherein a threaded portion that can be accessed and screwed from one side is provided or can be mounted. 5. The base unit or the extension unit in the left-right direction with respect to the existing extension unit has a U-shaped side frame structure having a U-shape or a U-shape having a pair of vertical frame parts. In both vertical and vertical directions, the vertical frame part has a through hole in the longitudinal direction, and a threaded rod having a thread formed at one end is inserted through the through hole, and the lower end with the one end facing down. The screw part is formed with a screw that can be screwed with the lower end screw part, and is screwed with the screw part that can be access screwed from above the pedestal or the existing extension unit, and the upper end part of the screw rod has the screw part. The threaded portion of the threaded rod end having the same thread as the rod is provided with or can be fitted with a threaded portion accessible from above, and the side frame structure is provided with a through hole penetrating in the left-right direction. Yes, insert a threaded rod with a thread formed at one end, The threaded portion at one end is screwed into the threaded portion at the side accessible from the side of the base body or the existing extension unit, and the other end of the threaded rod has the same thread as the threaded rod. The rack-shaped furniture according to any one of claims 1 to 4, wherein a threaded portion of a threaded rod end portion having a threaded portion is provided with a threaded portion that can be accessed and screwed from the side or can be mounted. 6. The base body has a pair of left and right side frame structures each having a rectangular shape or a U shape having a pair of vertical frame portions. The directional frame portion has a through hole in the longitudinal direction, and a threaded rod having a thread formed at one end is inserted into the through hole, and the lower end screw portion with the one end portion facing down is the lower end screw. Screw thread that can be screwed with the threaded portion is formed, and is screwed with the threaded portion provided near the lower end of the vertical frame portion, and the threaded rod end having the same screw as the threaded rod is attached to the upper end portion of the threaded rod. A threaded portion capable of being screwed into the threaded portion from above is provided or can be attached, and the pair of left and right side frame structures are connected by a threaded rod having a thread formed at one end thereof, The threaded portion at one end of the threaded rod is formed with a screw that can be screwed into the threaded portion, and is attached to one side frame structure. The threaded portion that is screwed into the threaded rod portion, and the other end portion of the threaded rod is provided with a threaded portion that allows the threaded portion of the threaded rod end portion having the same screw as the threaded rod to be accessed from the side. The rack-shaped furniture that can be added or installed according to any one of claims 1 to 5. 7. The expandable rack-shaped furniture according to claim 6, wherein a threaded portion that can be externally accessed and screwed is also provided on the outer side of the threaded portion provided on the one side frame structure. . 8. The expandable rack-shaped furniture according to claim 6, wherein a plate member is placed on and engaged with a left and right screw rod of the base body or the extension unit to form a shelf. 9. The expandable rack-like furniture according to claim 8, wherein a drawer is provided on the shelf, or a door is provided in front of the partition forming space of the base body or the expansion unit.