JPH04136515A - Screw member and connecting structure - Google Patents

Abstract

PURPOSE:To increase the speed for connecting two members to be connected and adjust the distance between the two easily by providing male threads and annular grooves in the same axis as the male threads and extending circumferentially on the outer periphery of the screw member. CONSTITUTION:Male threads 7 of a screw member 5 is connected to female threads 4 of an insert 3 embedded in an interior wall panel 2. When the screw member 5 is pushed through a hole 14 in a fixture 9 into a recess 15 against a concrete bed 1 together with the interior panel 2, fixing pieces 11 and 12 deform elastically and their center ends 11b and 12b come over a crest of grooves 8 to make locking. Thus, the screw member 5 and the fixture 9, i.e., the concrete bed wall 1 and the interior wall panel 2 are bound together with each other. When a ring portion 6 is turned to turn the screw member 5 after the connection is completed, the fixing pieces 11 and 12 are turned along the annular grooves 8 and, therefore, the screw member 5 will not move in the axial direction of the fixture 9. On the other hand, the female threads 4 and the screw member 5 move in the axial direction relatively to each other to adjust the distance between both members to be connected 1 and 2.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a bonding structure for mechanically bonding two substances to be bonded in a state in which the distance between the amounts of the substances to be bonded can be adjusted, and to the bonding structure, etc. This invention relates to a screw member to be used.

[Conventional technology]

Many coupling structures have been known in the art that mechanically couple two objects using screws in a state where the distance between the amounts of the objects can be adjusted.

[Problem to be solved by the invention]

However, all of the conventional bonding structures described above have a problem in that the bonding operation is time-consuming.

The present invention has been made in view of the above circumstances, and one of the objects of the present invention is to be able to easily and quickly join two objects to be joined, and to greatly improve the work efficiency of joining work compared to the past. It is an object of the present invention to provide a coupling structure and a screw member used in the coupling structure, which can improve the performance of the coupling structure and easily adjust the distance between the amounts of the substances to be coupled.

Another object of the invention is to provide a shock-resistant bonding structure.

Still another object of the present invention is to provide a bonding structure that can obtain a suitable cushioning effect.

[Means to solve the problem]

The screw member according to the present invention is provided with a male screw and an annular groove coaxial with the male screw and extending in the circumferential direction on the outer periphery.

Further, in the bonding structure according to the present invention, a first object to be bonded and a base made of a plate-shaped material are each separated from the base with an outer peripheral end left uncut, and the outer peripheral end is attached to the base. a plurality of radially arranged engaging pieces that are continuous and have a center side end as a free end, and a center side end of the engagement piece formed in the engagement piece installation portion of the base; a coupling tool attached to the side of the first object to be coupled, the coupling tool having an open section formed of a hole or a recess for allowing the annular groove installation section of the screw member to enter therebetween; The annular groove installation part is inserted between the object to be connected, the female screw provided on the second object side, and the center side end of the engagement piece of the coupling tool, and the engagement part is inserted into the annular groove. The screw member is engaged with the center end of the mating piece, and the male screw is screwed into the female screw.

[Effect]

In the present invention, the male threaded portion of the threaded member is screwed in advance to the female thread provided on the second object to be connected, and the annular groove of the threaded member is provided between the central end of each engagement piece. Push the part in the axial direction to engage the center side end of each engagement piece in the annular groove. Thereby, the screw member and the coupling tool are coupled, and in turn, the first and second objects to be coupled are coupled.

Note that even if a force is applied to the screw member in the pulling direction after the connection, if the engaging pieces are inclined in the pushing direction of the screw member with respect to the plane perpendicular to the axial direction, each engaging piece Since the center end of the screw member is brought into even stronger contact with the annular groove, the screw member will not come off from the coupling tool.

Then, when the screw member is rotated after the connection, since the annular groove is engaged with the tip of the engagement piece, the screw member does not move in the axial direction with respect to the coupling tool no matter how many times it is rotated, and remains the same. While the female screw screwed into the male screw of the screw member moves in the axial direction with respect to the screw member, the gap between the first and second objects is fixed. The interval can be adjusted.

〔Example〕

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

1 to 7 show a first embodiment of the present invention, in which an interior wall panel 2 (in this embodiment) is attached to a concrete base wall 1 (first object to be joined in this embodiment) of a reinforced concrete building. This is an example in which the present invention is applied to a bonding structure for attaching a second bonded object.

In this embodiment, a plurality of inserts 3 are embedded in the interior wall panel 2 at appropriate positions, and female threads 4 are formed in these inserts 3 with their axial directions perpendicular to the interior wall panel 2. ing.

The screw member 5 is provided with a hexagonal nut-shaped flange 6 in the middle, a male thread 7 on the outer periphery of one end side of the flange 6, and a male thread 7 coaxial with the male thread 7 on the outer periphery of the other end. , a large number of annular grooves 8 are provided that are not spiral but extend in the circumferential direction. The collar portion 6 has a male thread 7 and an annular groove 8.
It protrudes more radially.

The connector 9 is formed by press-forming a metal plate material having appropriate elasticity such as steel, stainless steel, or spring steel.
0, a plurality of first engagement pieces 11 and a plurality of second engagement pieces 12 are integrally formed.

As clearly shown in FIG. 4, the base portion 10 includes a rectangular first main surface portion 10a, and a pair of opposite sides of the first main surface portion 10a, each of which is bent in a right angle direction. It integrally has a pair of second main surface parts 10c bent inward from these side parts 10b in a perpendicular direction (parallel to the second main surface part 10a). A slight gap 13 is provided between the surface portions 10c.

Each of the first engagement pieces 11 is cut and raised from the second main surface portion 10a of the base 10, leaving only the outer peripheral end 11a uncut, and the outer peripheral end 11a is cut and raised from the second main surface portion 10a. It is continuous with Oa and extends radially with the center side end 11b as a free end. Further, each engagement piece 11 has an inclined portion 11
C and a parallel portion lid, and the inclined portion 11c is sloped upward from the outer peripheral end 11a toward the center, and the parallel portion lid is an inclined portion when no external force is applied thereto. It is bent from the terminal end of 11C and extends parallel to the -th main surface portion 10a to the center side end 11b. Engagement piece 11 of the -th main surface portion 10a of the base 10
A hole 14 is formed in the installation part.

The second engagement pieces 12 are each cut and raised from the vicinity of the mutually opposing ends of the pair of second main surfaces 10c of the base 10, leaving only the outer circumferential ends 12a uncut. It is continuous with the two principal surfaces 10c, and extends radially coaxially with the first engagement piece 11, with the center side end 12b being a free end. Further, each engagement piece 12 has a slope portion 1 .
2c and a parallel portion 12d, and the inclined portion 12c is sloped so as to be raised from the outer circumferential end 12a toward the center in the same direction as the inclined portion 11C of the first engagement piece 11. , when no external force is applied to the parallel portion 12d, the parallel portion 12d bends from the end of the inclined portion 12c and forms the center side end 12.
b extends parallel to the second main surface portion 10c. As clearly shown in FIG. 5, recesses 15 are formed in the second engagement piece 12 installation portion of each second main surface portion 10c, and these recesses 15 act as if they form one hole. are facing each other.

As shown in FIGS. 2, 4, and 6, fitting recesses 16 are provided at both ends of the side surface portion 10b of the connector 9. As shown in FIGS.

The connector support member 17 is made of a metal material such as steel, is long and linear, and is attached to the concrete base wall 1 vertically or horizontally to correspond to the spacing between the inserts 3 on the interior wall panel 2 side. Multiple pieces are installed at intervals.

The coupling tool support member 17 has a cross-sectional shape as shown in FIG. 16 is tightly fitted. As a result, when a large force above a certain level is not applied to the coupler 9, the coupler support member 1
It does not move with respect to the coupler support member 17, and only moves in the length direction of the coupler support member 17 when a large force of a certain level or more is applied. In addition, the coupling tool 9 is arranged so that the axial direction of the engaging pieces 11 and 12 is horizontal, and the engaging pieces 11 and 12 are oriented so as to protrude toward the concrete base wall 1 side.
It is supported by a coupler support member 17.

In this embodiment, when attaching the interior wall panel 2 to the concrete base wall 1, the male screw 7 of the screw member 5 is screwed into the female screw 4 of the insert 3 embedded in the interior wall panel 2 in advance. , with the position of the connector 9 relative to the connector supporting member 17 aligned with the position corresponding to the position of the screw member 5, as shown in FIG. In the hole 14 and the recess 15 toward the concrete base wall 1 (the engaging piece 11
．． 12 is cut and raised), the first and second engagement pieces 11 and 12 are elastically bent and deformed, so that the center side ends 11b and 12b of the engagement pieces 11 and 12 are inserted between the grooves 8. Go over the mountains.

Further, when the screw member 5 is stopped being pushed in, the center side end 11b of the engaging piece 11.12 is at that position.

12b engages with the groove 8. Thereby, the screw member 5 and the coupling tool 9 are coupled together, and in turn, the interior wall panel 2 is coupled to the concrete base wall 1.

Here, even if a force is applied to the screw member 5 in the pulling direction, since the first and second engaging pieces 11 and 12 are inclined in the pushing direction of the screw member 5 with respect to the plane perpendicular to the axial direction, The center-side ends 11b and 12b of the first and second engagement pieces 11 and 12 are strongly abutted against the annular groove 8, and the screw member 5 cannot be pulled out (note that the screw member 5 cannot be pulled out). 9, before the screw member 5 is pushed in, even if the first and second engagement pieces 11 and 12 have a structure that is not inclined in the direction in which the screw member 5 is pushed in, the center side of the engagement pieces 11 and 12 If the diameters between the ends 11b and 12b are each smaller than the diameter of the annular groove 8, and when the screw member 5 is pushed in, these engaging pieces 11 and 12 are inclined in the direction in which the screw member 5 is pushed. , even if a force is applied to the screw member 5 in the pulling direction, the screw member 5 will still not come out).

After the connection, when the screw member 5 is rotated by rotating the collar portion 6 with a tool such as a spanner, the annular groove 8 is engaged with the tip of the engagement piece 11.12, so the screw member 5 is rotated several times. Even when rotated, it does not move in the axial direction with respect to the coupling tool 9 and remains at the same position, while the female screw 4 screwed into the male screw 7 of the screw member 5 is attached to the screw member 5 together with the interior wall panel 2.
Since it moves in the axial direction, the distance between the concrete base wall 1 and the interior wall panel 2 can be adjusted.

In this way, in this joining structure, the interior wall panel 2 can be quickly joined to the concrete base wall 1 in a one-touch manner by simply pushing the screw member 5 into the joining tool 9, and the screw member 5 can be rotated. This allows the gap between the interior wall panel 2 and the concrete base wall 1 to be easily adjusted.

Furthermore, since the elasticity of the engaging pieces 11, 12 exhibits a spring effect, this coupling structure is strong against impact. And the engaging piece 11.1
By appropriately setting the size of the spring effect in step 2, it is possible to obtain an appropriate cushioning effect.For example, when applied to a school gymnasium wall, etc., it can be used to prevent people from colliding with interior wall panels. You can increase your sexuality.

Note that the connector 9 may be fixed to the connector support member 17 by spot welding or the like.

Figures 8 to 10 show a second embodiment of the present invention, in which the PCClO2 (first and second bonded objects in this embodiment) are vertically moved when installing PCClO2 to a building frame. This is an example in which the present invention is applied to a coupling structure that couples in a direction.

In this embodiment, a suitable number of inserts 20 are embedded in the lower end of each PC board 19 at appropriate positions, and female threads 21 are formed in these inserts 20 with the axial direction of the inserts 21 extending upward and downward.

The screw member 5 has the same shape as in the first embodiment (each part of the screw member 5 is given the same reference numeral as in the first embodiment).

Similar to the connector 9 of the first embodiment, the connector 22 is formed by press-forming a metal plate material having appropriate elasticity, such as steel, stainless steel, or spring steel. The piece 11 and the plurality of second engaging pieces 12 are integrally formed.

The base portion 23 includes a rectangular first main surface portion 23a, a pair of side surface portions 23b bent downward in a perpendicular direction from two opposing sides of the second main surface portion 23a, and further from these side surface portions 23b. A pair of second main surface portions 23c bent inward in the right angle direction (parallel to the second main surface portion 23a)
a pair of side surfaces 23d bent downward at right angles from the remaining two sides of the second main surface 23a, and a protrusion 23 bent outward from the lower ends of these side surfaces.
e, and a slight gap 24 is provided between the second main surface portions 230.

The first engagement piece 11 and the second engagement piece 12 are similar to those of the first embodiment, and are formed on the first main surface portion 23a1 and the second main surface portion 23c, respectively. Each part of the engaging pieces 11 and 12 is given the same reference numeral as in the first embodiment).

The coupling tool 22 is fitted into a box body 25 whose top surface is open. Here, the opposing sides 2 of the box body 25
5a and 25b are respectively sandwiched between both side ends of the side surface portion 23b and second main surface portion 23c of the coupling tool 22 and the inner surface of the side surface portion 23d, and the side surface portion 23b and the second main surface portion 23c are housed in the box body 25. , the side surface portion 23d and the protrusion portion 23e
is exposed outside the box body 25. The connector 22 and the box body 25 are embedded in the upper end of each PC board 19 at positions corresponding to the inserts 20 in a mutually fitted state. Note that here, the coupling tool 22 is embedded in such a direction that the engaging pieces 11 and 12 protrude downward.

In this embodiment, when connecting PCClO2 in the vertical direction, the upper PCClO2-embedded insert 20
The male screw 7 of the screw member 5 is previously screwed into the female screw 21 of the screw member 5, and as shown in FIG. 1
4 and the recess 15 from above to the bottom, and engage the center side ends 11b and 1.2b of the engagement piece 11.12 with the annular groove 8 of the screw member 5 in the same manner as in the first embodiment. do. Thereby, the screw member 5 and the coupling tool 22 are coupled, and in turn, the upper PCClO2 and the lower PCClO2 are coupled.

Then, the interval between the upper PCClO2 and the lower PCClO2 is determined by setting the screw member 5 in the same manner as in the first embodiment.
It can be adjusted by rotating.

11 and 12 show a third embodiment of the present invention, and this embodiment is an example in which the present invention is applied to a double floor of a building.

In this embodiment, a suitable number of inserts 27 are embedded in the floor plate 26 (the second object to be joined in this embodiment) at suitable locations, and these inserts 27 have internal threads 28.
is formed with its axial direction facing up and down. A male screw 30 provided on the outer periphery of the upper end of the intermediate screw 29 is screwed into the female screw 28 . A hexagonal nut-shaped head 29a is provided at the lower end of the intermediate screw 29. Furthermore, a female thread 31 is formed on the inner periphery of the intermediate thread 29.

The screw member 5 has the same shape as in each of the above embodiments (each part of this screw member 5 is given the same reference numeral as in each of the above embodiments).

The coupling tool 32 is formed by press-forming a metal plate material having appropriate elasticity such as steel, stainless steel, spring steel, etc., as in the case of the first embodiment. , and a plurality of second engaging pieces 12 are integrally formed.

The base portion 33 includes a rectangular first main surface portion 33a, a pair of side surface portions 33b bent downward in a perpendicular direction from two opposing sides of the second main surface portion 33a, and further from these side surface portions 33b. Right angle direction (-th principal surface portion 33a
(parallel direction) a pair of second main surface portions 3 bent inward
3c, and a pair of side surfaces 33d that are bent downward in the right angle direction from the remaining two sides of the second main surface 33a, and there is a slight gap 34 between the second main surface 33c. It is provided. Further, the side surface portion 33d extends below the second main surface portion 33c.

The first engagement piece 11 and the second engagement piece 12 are similar to those in each of the embodiments described above, and are formed on the first main surface portion 33a1 and the second main surface portion 33c. Each part of the joining pieces 11 and 12 is given the same reference numeral as in each of the above embodiments). Note that the engaging pieces 11 and 12 are cut and raised downward.

A plurality of channel steels 36 are horizontally embedded in the concrete floor 35 (the first object to be joined in this embodiment) with the openings of their cross sections facing upward. As shown in FIG. 11, the coupling tool 32 is fitted into these channel steels 36 such that the outer surface of the side surface portion 33d is in contact with the inner surface of the channel steel 36. A sheet-like rubber 37 is placed at the bottom of the channel steel 36 between the side surfaces 33d of the connector 32.

In this embodiment, when joining the floor plate 26 to the concrete floor 35, the male thread 30 of the intermediate screw 29 is screwed into the female thread 28 of the insert 27 on the floor plate 26 side in advance, and the female thread of the intermediate screw 29 is 31 is the male screw 7 of the screw member 5.
After screwing them together, as shown in FIG.
5 from above to the bottom, and do the same as in each of the embodiments described above to remove the center end 11b of the engaging piece 11.12.

12b is engaged with the annular groove 8 of the screw member 5, and at the same time, the lower end of the screw member 5 is brought into contact with the rubber 37.

Thereby, the screw 11 and the coupling tool 32 are coupled together, and in turn, the concrete floor 35 and the floor plate 26 are coupled together.

In this embodiment, the distance between the floor plate 26 and the concrete floor 35 can be adjusted not only by rotating the screw member 5 with respect to the intermediate screw 29, but also by rotating the intermediate screw 29 with respect to the female screw 28. It can also be adjusted by
The distance between the floor plate 26 and the concrete floor 35 can be adjusted largely without increasing the length of the female screw 28.

Furthermore, the combination of the spring effect due to the elasticity of the engaging pieces 11, 1.2 and the effect of the rubber 37 makes it possible to absorb the impact acting on the floorboard 26 and the floor impact sound.

In each of the above embodiments, two groups of engagement pieces, the first engagement piece 11 and the second engagement piece 12, are provided, but in the present invention, one group of engagement pieces is provided. Only one may be provided. Moreover, in that case, instead of providing multiple stages of annular grooves in the screw member, only one annular groove may be provided. However, if two groups of engagement pieces are provided as in this embodiment, the two groups of engagement pieces 11 and 12 are threaded into the screw member 5 at the same time, so that the deflection of the screw member 5 can be prevented. It is possible to increase the bonding strength.

Further, in the present invention, the cross-sectional shape of the annular groove 8 of the screw member is not limited to the triangular cross-sectional shape as in each of the embodiments shown in the drawings.

Further, in the present invention, the flange portion 6 does not necessarily need to be provided on the screw member 5. However, if the flange 6 is provided as in this embodiment, it can be used when rotating the screw member 5, and when the screw member 5 is pushed into the coupling tool to a certain depth, the flange 6 becomes the engagement member. 11 and prevents the screw member 5 from being pushed further into the coupling tool 32, it can also function as a stopper to prevent the screw member 5 from being pushed into the coupling tool excessively. Further, the shape of the flange portion may be other than a hexagonal nut shape.

Further, in each of the embodiments described above, the engaging pieces 11.12 are bent in the middle, and the inclined portions lie, 12c and the parallel portions lid, 12d.
However, in the present invention, the engagement piece does not necessarily need to be bent in the middle.

Furthermore, in each of the above embodiments, both the first and second objects are plate-shaped, but the bonding structure according to the present invention has a structure in which the first object and/or the second object are plate-shaped. This method can also be applied when the object to be bonded is not plate-shaped.

Further, in each of the embodiments described above, the connector is made of metal, but it is also possible to use other materials other than metal, such as synthetic resin, as the material of the connector.

〔Effect of the invention〕

As described above, the present invention has the following features: (a) Two objects to be bonded can be easily and quickly bonded, the work efficiency of the bonding work can be dramatically improved compared to the conventional method, and the amount of the objects to be bonded can be reduced. The spacing can be easily adjusted.

(b) Strong against impact.

(c) An appropriate cushioning effect can be obtained by appropriately setting the elasticity of the engaging piece.

It is possible to obtain excellent effects such as.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing a first embodiment of the coupling structure according to the present invention, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is a side view showing a screw member in the first embodiment. Figure, 4th
The figure is a perspective view showing the connector in the first embodiment, and the fifth figure is a perspective view showing the connector in the first embodiment.
The figure is a plan view showing the coupling tool, and FIG. 6 is a VI-
7 is a cross-sectional view taken along line VI in FIG. 6, FIG. 8 is a cross-sectional view showing a second embodiment of the joint structure according to the present invention, and FIG. 9 is a cross-sectional view taken along line ■-■ in FIG. FIG. 10 is a sectional view taken in a section perpendicular to the cross section of FIG. 9 showing the coupling tool and box body, and FIG. 11 is a third cross-sectional view of the coupling structure according to the present invention. A cross-sectional view showing the embodiment, and FIG. 12 is a perspective view showing the connector in the third embodiment. 1... Concrete base wall, 2... Interior wall panel,
4...Female screw, 5...Screw member, 6...Brim part,
7... Male thread, 8... Annular groove, 9... Connector, 1
0...Base, 11...First engagement piece, lla...
Outer peripheral side end of the first engaging piece, llb... Center side end of the first engaging piece, 12... Second engaging piece, 12a... Outer circumferential side of the second engaging piece End, 12b... Center side end of second engagement piece, 14... Hole, 15... Recess, 17... Connector support member, 19... PC board, 21... Female screw, 2
2... Connector, 23... Base, 26... Floor board, 3
1... Female screw, 32... Connector, 33... Base,
35- Concrete floor. fig fig fig fig fig fig fig fig fig fig fig fig fig fig fig fig fig fig fig fig fig fig fig fig fig.

Claims (1)

[Scope of Claims] 1. A threaded member provided on its outer periphery with a male thread and an annular groove coaxial with the male thread and extending in the circumferential direction. 2. The threaded member according to claim 1, further comprising a flange portion protruding from the male thread and the annular groove in the radial direction in a portion between the male thread installation portion and the annular groove installation portion. 3. A first object to be joined, and a base made of a plate-shaped material, each of which is separated from the base with an outer peripheral end left uncut, and the outer peripheral end is continuous with the base and the center end is connected to the base. a plurality of engaging pieces arranged radially, with the free ends being formed at the engaging piece installation portion of the base, and between the center side ends of the engaging pieces. a coupling tool having an opening part that allows the annular groove installation part to enter and is attached to the first object to be joined; a second object to be joined; and the second object to be joined. The annular groove installation portion is inserted between a female thread provided on the side and the center side end of the engagement piece of the coupling device, and the center side end of the engagement piece is engaged with the annular groove. and the screw member according to claim 1, wherein the male screw is screwed into the female screw. 4. The coupling structure according to claim 3, wherein the coupling device is supported movably along the linear direction by a coupling device support member attached to the first object to be bonded and extending in the linear direction.