JP2006214566A - Joint made of aluminum and method of joining square pipe made of aluminum using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint made of aluminum useful as a joint for a square pipe made of aluminum used in a storage shelf composed of eighty or more seedling box storage shelves and requiring a higher strength, wherein square pipes capable of being removably connected with each other with screws are connected with one another into a planar L-shape or T-shape by use of joints made of aluminum and having the same shape for assembling the seedling box storage shelves by using square pipes made of aluminum, and a method of joining the square pipes made of aluminum. <P>SOLUTION: The joint comprises a block made of aluminum having joining hands to be joined with the square pipe made of aluminum, which hands are extended in an L-shape/T-shape. The individual joining hand has a plurality of nut holes for screwing a bolt with interposing hollow parts for reducing weight between the holes in longitudinal direction, and the square pipe made of aluminum is connected with the joining hand by using a plurality of bolts. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a joint and method for connecting an aluminum square pipe to a flat L-shape or T-shape using an aluminum joint of the same shape.

  Conventionally, various joints or connecting members for connecting a square pipe or the like to, for example, an L-shape are known, but there is no known one that can easily and freely connect an aluminum square pipe. It was.

Japanese Patent Laid-Open No. 7-208416 JP 2002-57477 A JP 2003-247516 A

  An object of the present invention is to use an aluminum connecting joint having the same shape as an L-shaped or T-shaped rectangular pipe that can be detachably connected by bolting when assembling and building a seedling box storage shelf using an aluminum square pipe. Aluminum joints useful as joints for aluminum square pipes that require higher strength for 80 or more storage shelves of seedling box storage shelves, and methods for connecting aluminum square pipes using the same Is to provide.

  In a joint made of an aluminum block whose joints with aluminum square pipes are spent in the L-type / T-type, a plurality of nuts for screwing a plurality of bolts sandwiching an intermediate light-weight cavity in the longitudinal direction of each joint The present invention relates to a joint characterized by arranging holes and connecting each aluminum square pipe to each connecting hand using a plurality of bolts.

  In the above description, the present invention relates to a joint that bolts an aluminum square pipe to a nut hole via a reinforcing plate that commonly covers the nut holes of all connecting hands.

  An L-type / T-type aluminum basic block with a nut insertion hole at each tip and a hook-shaped hook projecting from each tip surface, and a hook-shaped hook projecting from one end It consists of a combination of a linear aluminum extension block with a nut insertion hole in the part, and each tip of the basic block is linearly extended by the male and female connection of each hook-shaped hook part between the basic block and the extension block. The present invention relates to a joint characterized by forming a connecting hand with a square pipe.

  In the above, a steel nut is fitted in each nut fitting hole of both blocks, and a steel pin is press-fitted inside the connecting portion of the hook-like hook portion of both blocks and the outside of the connecting portion of both blocks is welded. Related to aluminum fittings for connecting aluminum square pipes.

  Further, in the above, the hollow portion is hollowed out in the base portion surrounded by the nut fitting hole of the basic block, and the hollow portion is similarly hollowed out between the nut fitting hole of the extension block and the hook-shaped hook portion, and the both blocks are related to the weight reduced. .

  Further, the square pipes connected in the above are fitted so as to cover the entire length of the extension block and the steel nut of the basic block connected to the extension block, and the square pipe and both blocks are connected by steel bolts screwed into the steel nut through the square pipe wall. It is related to the joint that tightens.

  Further, in the above, a reinforcing plate of a size covering the entire surface of the joint is commonly applied to the outer surface of the full-width pipe to be connected, and the reinforcing plate and then the aluminum reinforcing plate through the square bolt wall and the steel bolt screwed into the steel nut. It is related to the joint that tightens the square pipe and both blocks.

  In the above description, the present invention relates to a joint in which the connection between the square pipe and the joint is detachable.

  In the above description, the outer surface of the square pipe relates to a joint in which narrow grooves running in the longitudinal direction are arranged at a close interval.

  The present invention relates to a connection method for connecting an aluminum square pipe to an L-shaped / T-shaped array using the joints described above.

  The above connection method relates to a method of connecting an aluminum square pipe and an aluminum joint with a steel bolt and a steel nut, and a method of fitting the steel nut into the joint in advance and fixing it.

The block material joint of the present invention was developed for a storage rack of 80 or more seedling box storage shelves (for 80 sheets, 96 sheets, 120 sheets) because higher strength is required. Although it is basically a frame structure, it is a particularly important part in the frame structure because complex forces such as shear, compression, tension, and bending moment act on the joint.
The joint portion has a structure in which a square pipe is inserted into each of the T-shaped and L-shaped block members and fastened with a steel bolt from above the reinforcing plate.
The T-shaped block member has a structure in which three extension block members are joined to the basic block member in order to extend the length.
Similarly, the L-shaped block member has a structure in which two extension block members are joined to the basic block member.
The above mating method has a structure in which a steel pin is press-fitted and welded together in order to maintain strength.
In order to firmly join the square pipe and the block material, a steel nut was press-fitted into the block itself. As a result, even in the case of an aluminum material having a relatively low hardness, the joint is made of steel, so that the joint strength increases and aging does not easily occur.

  The invention will now be described by way of example with reference to the drawings, which are given for the purpose of illustration and are not intended to limit the invention.

  FIG. 1 shows a plan view of a T-shaped basic block (T-B) of an aluminum T-shaped joint, and a nut insertion hole (2) at each of the tip portions (1) (1) (1) for forming a connecting hand. ) And a hollow portion (3) for weight reduction is cut out in the base portion surrounded by the nut insertion holes (2), (2), and (2). A male hook-like hooking portion (4) protrudes from the tip surface of the tip portion (1), and a pin press-fit recess (5) to be described later is formed on the inner surface of the hook-like shape. .

  FIG. 2 shows a plan view of a linear extension block (E-B) made of an aluminum T-shaped joint, and has one nut fitting hole (2) identical to the above-mentioned nut fitting hole on one end side. A pair of female hook-like hooks (4 ') that can be fitted into the male and female are protruded on the end surface of the above-mentioned hook-like hook (4). A dent (5 ′) for pin press-in to be described later is formed. A hollow portion (3 ') for weight reduction is cut out between the nut fitting hole (2) and the hook-shaped hook portion (4').

  FIG. 3 is a plan view of a combination block formed by connecting the basic block (T-B) of FIG. 1 and the extension block (EB) of FIG. The female hook-like hooks (4 ′) of the extension block (EB) are respectively connected to the male hook-like hooks (4) at the tip of the T-shaped three sides of B). 4) The steel pin (6) is press-fitted into a pin press-fitting hole formed in a circular shape by the recesses (5) and (5 ') between (4'), and the connection of both hooks (4) and (4 ') is established. Immobilize. As a result, a T-shaped integrated joint having a connecting hand in which each end of the basic block (TB) is extended by the extension block (EB) is obtained.

  Although not shown, a steel nut is fitted and fixed in the nut fitting hole (2) of the T-shaped joint in FIG.

  Three square joints (not shown) of the T-shaped joint shown in FIG. 3 fitted with this steel nut are fitted with an aluminum square pipe (not shown) for the full length of the extension block (EB) and the steel nut for the basic block (TB). Nut fitting holes (2) fitted with nuts are covered and fitted to each other, and bolts (not shown) are externally attached to a plurality of steel nuts inside through bolt holes that are pre-opened in an aluminum square pipe. The screwed aluminum square pipe is fastened and fixed to each connecting hand at multiple locations. When tightening bolts and nuts, washers, spring washers, etc. are used in accordance with conventional methods. (7) shows the abutting surface that receives the end face of the aluminum square pipe.

  By connecting the bolts and nuts at the inner and outer joints as described above, the connection between the aluminum square pipes and the joints of the joints is firmly ensured. In order to further secure the mutual position between the three connecting joints, an aluminum reinforcing plate of a size that covers all the joints at the same time, specifically, all the nuts fitted in the multiple nut fitting holes of all connecting joints at the same time (Not shown) is applied to the outer surface of a three-sided aluminum square pipe, and the intended purpose is achieved by the bolt-nut connection described above.

  FIG. 4 shows a plan view of an L-shaped basic block (LB) of an aluminum L-shaped joint, which has nut insertion holes (2) at the tip portions (1) and (1) for forming a connecting hand, respectively. The base portion surrounded by the nut insertion holes (2) and (2) has a hollow portion (3 '') for weight reduction. A male hook-like hook (4) is projected from the tip surface of the tip (1), and this structure is the same as in the previous case.

  FIG. 5 is a plan view of a combination block formed by connecting the basic block (LB) of FIG. 4 and the extension block (EB) of FIG. B) The female hook-like hooks (4 ') of the extension block (EB) are respectively connected to the male hook-like hooks (4) at the ends of the L-shaped two ends of B, and both hooks are connected. (4) A steel pin (6) is press-fitted into a pin press-fitting part formed between (4 '), and the connection of both hooks (4) (4') is fixed. As a result, an L-shaped integrated joint having a connecting hand in which each end of the basic block (LB) is extended by the extension block (EB) is obtained.

In the same manner as described above, a steel nut is fitted and fixed in the nut fitting hole (2). The aluminum square pipe is connected to the L-type joint in the same manner as in the case of the T-type joint.
Further, the reinforcing plate applied to the entire surface of the joint is implemented in the same procedure as described in the case of the T-type joint.

It is a top view of a T type basic block. It is a top view of an extension block. FIG. 3 is a plan view of a T-type joint that connects the block of FIG. 1 and the block of FIG. 2 in combination. It is a top view of an L type basic block. FIG. 5 is a plan view of an L-shaped joint that connects the block of FIG. 4 and the block of FIG. 2 in combination.

Explanation of symbols

T-B: T-shaped basic block L-B: L-shaped basic block EB: Extension block 1 ... Tip of the basic block 2 ... Nut insertion hole 3, 3 ', 3''... ... Cavity part 4 ... Magular hook part 4 '... Female hook part 5,5' ...... Pin press-fit recess 6 ... Steel pin 7 ... Abutting to receive the end face of a square pipe surface

Claims (12)

  In a joint made of an aluminum block whose joints with aluminum square pipes are spent in the L-type / T-type, a plurality of nuts for screwing a plurality of bolts sandwiching an intermediate light-weight cavity in the longitudinal direction of each joint A joint characterized by arranging holes and connecting each aluminum square pipe to each connecting hand using a plurality of bolts.   The joint according to claim 1, wherein the aluminum square pipe is bolted to the nut hole via a reinforcing plate that commonly covers the nut holes of all connecting hands.   An L-type / T-type aluminum basic block with a nut insertion hole at each tip and a hook-shaped hook projecting from each tip surface, and a hook-shaped hook projecting from one end It consists of a combination of a linear aluminum extension block with a nut insertion hole in the part, and each tip of the basic block is linearly extended by the male and female connection of each hook-shaped hook part between the basic block and the extension block. A joint characterized by forming a connecting hand with a square pipe.   A steel nut is fitted in each nut fitting hole of both blocks, and a steel pin is press-fitted inside the connecting portion of the hook-shaped hook portion of both blocks and the outside of the connecting portion of both blocks is welded. 3. Aluminum joint for connecting aluminum square pipes according to 3.   5. The block according to claim 3 or 4, wherein the hollow portion is cut out in the base portion surrounded by the nut fitting hole of the basic block and the hollow portion is also cut out between the nut fitting hole of the extension block and the hook-like hook portion to reduce both the blocks. Fittings.   The square pipe to be connected is fitted so as to cover the entire length of the extension block and the steel nut of the basic block connected to it, and the square pipe and both blocks are tightened by steel bolts screwed into the steel nut through the square pipe wall The joint according to any one of claims 3 to 5.   A reinforcing plate of a size covering the entire surface of the joint is commonly applied to the outer surface of the full-width pipe to be connected, and the reinforcing plate and then the square pipe through the aluminum reinforcing plate by a steel bolt screwed into the steel nut through the square pipe wall. The joint according to any one of claims 3 to 6, wherein both blocks are tightened.   The joint according to any one of claims 1 to 7, wherein the connection between the square pipe and the joint is detachable.   The joint according to any one of claims 1 to 8, wherein narrow grooves running in the longitudinal direction are arranged at close intervals on an outer surface of the square pipe.   A connection method for connecting an aluminum square pipe to an L-shaped / T-shaped array using the joint according to any one of claims 1 to 9.   The connection method according to any one of claims 1 to 10, wherein an aluminum square pipe and an aluminum joint are connected by a steel bolt and a steel nut. The connection method according to any one of claims 1 to 11, wherein the steel nut is fitted and fixed to the joint in advance.

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