JPH1030615A - Coupling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remarkably improve coupling efficiency between two structures through one action operation of a bolt to one action nut. SOLUTION: One action nut 12 is provided and formed such that a bolt fixed within a first structure 11 is freely inserted in an insertion direction without rotation regardless of a screw but the is joined in a screwed-in state in a pull-off direction. During joining of the first structure 11 and a second structure 14, a bolt 17 having a tip joined in a screwed-in state with one action nut 12 is inserted in the second structure 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to office equipment such as a partition for partitioning a space in an office and a desk in a conference room.
Alternatively, the present invention relates to a connecting device used to connect structures such as walls, floors, and ceilings of prefabricated houses.

[0002]

2. Description of the Related Art Conventionally, an adhesive has been widely used to connect two structures. However, since this uses a solvent, an adverse effect on the human body is unavoidable. There is a disadvantage that the structure cannot be rearranged.

On the other hand, there has been proposed a coupling device as shown in FIG. 13, for example. For this, a nut insertion hole 2 and a bolt through hole 3 are formed in one of the structures 1,
The other structure 4 has a bolt insertion hole 5 and a bolt through hole 6
Is formed, and when connecting the two structures 1 and 4,
The shaft portion of the bolt 7 inserted into the bolt insertion hole 5 is passed through the bolt through holes 6 and 3, and the nut 8 inserted into the nut insertion hole 2 is screwed into the bolt 6, as shown in FIG. It is to tighten.

[0004]

However, in the conventional connecting device, when there are many fastening portions using bolts and nuts, the number of fastening operations is increased, which places a heavy burden on the operator, and also causes the bolts or nuts to be tightened. There is a problem that the efficiency of the fastening operation as a whole is extremely low because of the large number of rotations.

[0005] The present invention solves the above-mentioned problems, and the use of a one-touch nut can greatly improve the connection efficiency of two structures, thereby reducing the number of connection work steps and the burden on the operator. It is an object of the present invention to obtain an inexpensive connecting device.

Another object of the present invention is to provide a connecting device that can simplify the operation of inserting a bolt into a one-touch nut.

Another object of the present invention is to provide a connecting device which can save the trouble of inserting a bolt into a structure.

Another object of the present invention is to provide a connecting device which can effectively prevent the bolts from being hindered when transporting and handling the structure, since the bolts can be connected to the structure when connecting the structures. And

Another object of the present invention is to provide a connecting device in which screws at both ends of a bolt can be correctly screwed into each one-touch nut in each structure connected to each other.

[0010]

To achieve the above object, a connecting device according to the first aspect of the present invention is provided such that a bolt fixed in a first structure is rotated in an insertion direction regardless of a screw. It has a one-touch nut that is screwed and connected to a screw in the pulling direction, and a tip end is provided in the second structure when the first structure and the second structure are joined. The part has a bolt inserted and screwed into the one-touch nut.

Further, in the connecting device according to the second aspect of the present invention, the bolt fixed in the first structure can freely enter the insertion direction without rotating regardless of the screw in the insertion direction, but can move in the removal direction. A bolt having a one-touch nut screwed and coupled to a screw, the tip of which is inserted and screwed into the one-touch nut when the first structure and the second structure are joined in the second structure Is mounted so that it can be rotated.

Further, in the connecting device according to the third aspect of the present invention, the bolt fixed in the first structure can freely enter the insertion direction without rotating regardless of the screw in the insertion direction, but can move in the removal direction. A one-touch nut screwed into the screw and joined,
A bolt holding member mounted in the second structure, the one end being inserted into the bolt holding member, rotatably supported by the bolt holding member, and the first structure and the second structure.
The other end is provided with a bolt that is inserted and screwed into the one-touch nut when the structure is joined.

In the connecting device according to the fourth aspect of the present invention, the bolt fixed in the first structure can freely enter the insertion direction without rotating regardless of the screw in the insertion direction, but can move in the removal direction. A first one-touch nut screwed into and coupled to a screw; and a second one-touch nut fixed in a second structure and having a reverse screw to the first one-touch nut; At the time of joining the structure of the second structure and
One end is inserted and screwed into the first one-touch nut, the other end is inserted and screwed into the second one-touch nut, and both ends are provided with mutually opposite bolts.

Further, in the connecting device according to the invention of claim 5, the diameters of both ends of the bolt are different.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a connecting device according to the present invention. In FIG.
Reference numeral 2 denotes a one-touch nut embedded near one end face of the first structure 11, and reference numeral 13 denotes a bolt through hole facing an opening of the one-touch nut 12.

Further, 14 is a second member to be joined to the first structure.
Reference numeral 15 denotes a bolt insertion hole provided at a portion of the second structure 14 facing the one-touch nut 12, 16 denotes a bolt through hole, and 17 denotes a bolt inserted into the bolt insertion hole 15.

Here, the one-touch nut is a bolt,
In the insertion direction (screw-in direction), the nut can be freely inserted without rotating regardless of the screw, but in the pull-out direction, it refers to a nut that is screwed and coupled to the screw. Therefore, the screw connection (slightly tightening) is performed only by pushing the bolt in the insertion direction (screw-in direction), and the screw cannot be loosened without turning in the pull-out direction (loosening direction).

FIGS. 2A, 2B, 2C and 2D show an example of the one-touch nut. The nut case 23 has a bolt insertion hole 21 and a tapered hole 22 continuous with the bolt insertion hole 21, a two-piece screw piece 24 inserted into the nut case 23 to form a conical shape as a whole, and these screw pieces 24. A spring 25 for urging the conical surface of the tapered hole 22 in a direction of pressing against the inner surface of the tapered hole 22, and a cover 26 accommodating the spring 25 and connected to the nut case 23.

On the inner peripheral surface of each screw piece 24, there is formed a screw portion 27 which is screwed to a bolt inserted therein.

When the one-touch nut 12 is pushed into the bolt 17 as shown in FIG.
The tip of the shaft portion of the screw member 27 hits the screw portion 27, and the screw piece 24 is pushed in against the spring 25 as shown in FIG. Then, since the conical surface which is the outer peripheral surface of the screw piece 24 slides along the tapered hole 22 in a direction in which the diameter of the tapered hole 22 increases, the screw pieces 24 are separated from each other and formed by a plurality of screw pieces 24. The inner diameter of the bolt 17 is increased, and the shaft of the bolt 17 can freely enter the screw 27 without rotating. When the pushing is stopped at the point of entry, the screw piece 24 is pushed back in the direction in which the diameter of the tapered hole 22 is reduced by the urging force of the spring 25. Therefore, the inner diameter of the screw piece 24 is determined by the tapered hole 22 and the conical surface of the screw piece 24. The diameter is reduced, and the screw portion 27 of the screw piece 24 and the screw of the bolt 17 are screwed and connected as shown in FIG. Therefore,
As shown in FIG. 2D, the one-touch nut 12 can be completely connected by slightly winding the nut.

In this description, the example of pushing in and tightening the one-touch nut 12 has been described, but the order may be reversed. That is, the one-touch nut 12 may be fixed, the bolt 17 may be pushed in, and the bolt 17 may be tightened.

Therefore, when the first structure 11 and the second structure 14 shown in FIG. 1 are joined and the shaft of the bolt 17 is inserted into the bolt insertion hole 21 of the one-touch nut 12, the shaft of the bolt 17 is The tip of the part hits the screw part 27,
The screw piece 24 is pushed into the nut case 23 against the spring 25.

As a result, the screw pieces 24 are separated from each other by the sliding of the conical surface of the screw piece 24 with respect to the tapered hole 22 and the inner diameter is expanded, so that the shaft portion of the bolt 17 sufficiently enters the screw portion 27. . When the pushing is stopped at the point where the screw piece 24 has entered, the screw piece 24 is pushed back by the urging force of the spring 25, and the inner diameter of the screw piece 24 is reduced by the tapered hole 22 and the conical surface of the screw piece 24. 27 and bolt 1
The screw 7 is screwed and connected. Therefore, even if a force in the pulling direction acts on the bolt 17, the screw of the shaft of the bolt 17 and the screw portion 27 of the screw piece 24 mesh with each other as shown in FIG. No, so both structures 11,
14 are securely connected as shown in FIG.

At this time, if necessary, the bolt 1
The meshing state is completed with a slight tightening of the screw 7 slightly into the screw portion 27. In this manner, the bolt 17 can be securely fastened to the nut 12 with one touch simply by pushing the bolt 17 without turning it, so that the connection of the two structures can be performed simply and efficiently.

FIG. 4 shows another embodiment of the present invention.
Reference numeral 31 denotes a bolt whose one end is supported by the second structure 14, which is formed by integrally connecting a neck portion 32 and a retaining flange portion 33 to the head of the bolt as shown in FIG. Make

The flange portion 33 is rotatably inserted into a bolt retaining hole 34 provided in the second structure 14, and the neck portion 32 has a neck through hole 35 at a position facing the opening of the one-touch nut 12. It is rotatably supported inside.

Therefore, in this embodiment, the bolts 31 previously attached to the second structure 14 are pushed into the one-touch nuts 12 of the first structure 11 so as to push the two structures as shown in FIG. Objects 11 and 14 can be connected with one touch in the same manner as described above.

Also in this case, if necessary, the bolt 31 can be slightly screwed in and slightly tightened, so that the engagement state of the bolt 31 with the screw portion 27 can be further ensured.

FIG. 6 shows another embodiment of the present invention.
In the same figure, reference numeral 41 denotes a bolt whose one end is supported by the second structure 14, which is formed by integrally connecting a neck 42 and a hook head 43 to a bolt head as shown in FIG. Become.

The second structure 14 has a hook head insertion hole 44 and a first structure 11 which communicates with the hook head insertion hole 44.
A neck through hole 45 is provided at a position facing the opening of the one-touch nut 12 on the side.

Reference numeral 46 denotes a locking plate as a bolt holding member inserted into the ring groove 46a of the hook head insertion hole 44. As shown in FIG. 7, this is a central portion of a disc-shaped spring plate. Is provided with a zigzag hole 46b so that the vicinity of the zigzag hole 46b rises slightly to one side,
A spring force is applied.

Therefore, in this embodiment, first, the hook head 43 of the bolt 41 is pushed into the zigzag hole 46b of the locking plate 46 inserted into the second structure 14, and penetrated. By supporting the neck portion 42 in the zigzag hole 46b, one end of the bolt 41 can be held by the second structure 14.

Then, the other end of the bolt 41 whose one end is held in this way is pushed into the one-touch nut 12 through the bolt insertion hole 13 of the first structure 11, thereby obtaining the first structure as shown in FIG. The second structure 14 can be tightly connected to the object 11. In this embodiment, since the bolts 41 are prepared only when the structures 11 and 14 are connected, the bolts 41 do not hinder the handling, transportation, and storage of the structures.

FIG. 9 shows another embodiment of the present invention.
This is one in which the screw portion 27 embeds a right-handed one-touch nut 51 in the first structure 11, and the screw portion 27 embeds a left-handed one-touch nut 52 in the second structure 14 in advance. is there.

In connecting the two structures 11 and 14, a bolt 55 having a right-hand screw 53 at one end and a left-hand screw 54 at the other end is separately prepared, and each end of the bolt 55 is passed through each bolt. The two structures 11 and 14 may be inserted into the holes 56 and 57, respectively, as shown in FIG. Here, if it is necessary to further securely connect the structures 11, 14, the bolt 55 is slightly tightened.

In this embodiment, for example, the screw portion 27 is connected to the right-handed one-touch nut 51 by the bolt 5.
In order to prevent the left screw 54 from being inserted, it is desirable that the diameter of the screw portion 27 of one one-touch nut 51 and the right screw 53 of the bolt 55 be larger or smaller than the other.

Further, such a one-touch nut 51,
Reference numeral 52 denotes each of the structures 11, 1 as shown in FIGS.
4 is provided on each of the opposing surfaces, and one bolt 5
5 can be inserted, and each structure 11, 14 can be reliably connected integrally at the upper and lower portions. As described above, when the number of connection points is large, the efficiency of the fastening operation is further improved, and the power is further exhibited.

[0038]

As described above, according to the first aspect of the present invention, the bolt fixed in the first structure can freely enter the insertion direction without rotating regardless of the screw in the insertion direction. Has a one-touch nut that is screwed and joined to the screw,
In the second structure, when the first structure and the second structure are joined, a bolt whose front end is inserted and screwed into the one-touch nut is inserted, so that the one-touch nut can be used. The coupling efficiency of the two structures can be greatly improved, and the effects of reducing the number of coupling steps and the burden on the operator can be greatly reduced.

According to the second aspect of the present invention, the bolt fixed in the first structure can freely enter the insertion direction without rotating regardless of the screw in the insertion direction, but can screw into the screw in the removal direction. A one-touch nut that is joined together to rotate the bolt whose front end is inserted and screwed into the one-touch nut when the first structure and the second structure are joined in the second structure Since it is configured to be attached as much as possible, an effect is obtained that the work of screwing the bolt to the one-touch nut can be simplified.

According to the third aspect of the present invention, the bolt fixed in the first structure can freely enter the insertion direction without rotating regardless of the screw, but can screw the screw in the removal direction. A one-touch nut joined together and a bolt holding member mounted in the second structure, wherein the bolt holding member is rotatably supported by inserting one end into the bolt holding member; When the structure and the second structure are joined, the other end is provided with a bolt that is inserted and screwed into the one-touch nut, so that it is possible to save the trouble of inserting the bolt into the structure. can get.

According to the fourth aspect of the present invention, the bolt fixed in the first structure can enter freely without rotating in the insertion direction regardless of the screw, but can be screwed into the screw in the removal direction. A first one-touch nut coupled together and a second one-touch nut fixed in a second structure and having a reverse thread to the first one-touch nut; When joining the second structure and the second structure, one end is connected to the first structure.
And the other end is inserted and screwed into the second one-touch nut, and both ends are provided with oppositely threaded bolts, so that the coupling efficiency of the two structures is greatly increased. In addition, the bolts can be securely connected to the structures when the structures are connected, so that the bolts can be effectively prevented from becoming an obstacle when the structure is transported or handled.

According to the fifth aspect of the present invention, since the diameters of both ends of the bolt are made different, screws at both ends of the bolt can be properly screwed into each one-touch nut in the structure to be connected. The effect that can be performed is obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part showing a coupling device according to an embodiment of the present invention.

FIG. 2 is a sectional view showing the structure of the one-touch nut shown in FIG. 1, in which (a), (b), (c) and (d) are shown in the order of operation steps.

FIG. 3 is a cross-sectional view showing a connection state between a one-touch nut and a bolt in FIG. 1;

FIG. 4 is a sectional view of a main part showing a coupling device according to another embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a connection state between the one-touch nut and the bolt in FIG.

FIG. 6 is a sectional view showing a connecting device according to another embodiment of the present invention.

FIG. 7 is a front view showing the locking plate in FIG. 7;

FIG. 8 is a cross-sectional view showing a connection state between a one-touch nut and a bolt in FIG. 6;

FIG. 9 is a sectional view showing a coupling device according to another embodiment of the present invention.

FIG. 10 is a cross-sectional view showing the state of connection between the one-touch nut and the bolt in FIG.

FIG. 11 is a sectional view showing another embodiment of the present invention.

FIG. 12 is a cross-sectional view showing a connected state in FIG. 11;

FIG. 13 is a sectional view of a main part showing a conventional connecting device.

FIG. 14 is a cross-sectional view showing a coupling state between a nut and a bolt in FIG.

[Explanation of symbols]

 11 First structure 12, 51, 52 One-touch nut 14 Second structure 17, 31, 4, 55 Bolt 46 Bolt holding member

Claims (5)

[Claims] 1. A one-touch nut fixed in a first structure, wherein a bolt can freely enter in an inserting direction without rotating regardless of a screw, but is screwed and connected to a screw in a removing direction. And a bolt inserted into the second structure, the tip of which is inserted and screwed into the one-touch nut when the first structure and the second structure are joined. apparatus. 2. A one-touch nut fixed within the first structure, wherein the bolt can freely enter in the inserting direction without rotating regardless of the screw, but is screwed and connected to the screw in the removing direction. And a bolt which is rotatably mounted in the second structure, and whose tip is inserted and screwed into the one-touch nut when the first structure and the second structure are joined. A coupling device. 3. A one-touch nut fixed within the first structure, wherein the bolt can freely enter in the insertion direction without rotating regardless of the screw, but is screwed and connected to the screw in the removal direction. And a bolt holding member mounted in the second structure, and rotatably supported by inserting one end of the bolt holding member into the bolt holding member, and the first structure and the second structure. And a bolt having the other end inserted and screwed into said one-touch nut at the time of joining. 4. A first bolt fixed within the first structure, which can freely enter in the inserting direction without rotating regardless of the screw, but is screwed and connected to the screw in the removing direction. And a one-touch nut fixed to the second structure,
At the time of joining the second one-touch nut having a reverse screw to the one-touch nut of the first structure and the second structure, one end is inserted and screwed into the first one-touch nut, and the other end is connected to the first one-touch nut. 2. A coupling device which is inserted and screwed into the one-touch nut of No. 2 and has oppositely threaded bolts at both ends. 5. The connecting device according to claim 4, wherein the diameters of both ends of the bolt are different.