JPH066263Y2 - Connection tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a connecting tool for locking a plurality of independent objects by penetrating and integrally connecting them.

[Background technology and its problems]

For example, in concrete form forming, assembling a snow shade, fixing a panel material to a pillar material, and the like, it is necessary to superimpose a plurality of independent objects such as the panel material and the panel material and to integrally connect them.

Conventionally, bolts, nuts, cotter pins, and the like for locking each of them through have been adopted as tools for integrally connecting a plurality of such independent objects, but these have the following drawbacks.

That is, when using bolts and nuts, insertion and rotation operations are required, so much labor and time are required for attachment and detachment, and work efficiency and economy are poor. It became a further drawback when it was necessary to insert a washer or the like. On the other hand, when the split pin is used, both the independent objects must be penetrated before the tip part must be opened, and not only the work efficiency is poor, but also the disassembled part must be broken. The withdrawn cotter pin has the drawback that it cannot be used again.

Further, there is a drawback that the plurality of independent objects to be connected together with the bolt, the nut and the split pin cannot be used unless a hole having a diameter corresponding to the bolt or the like is formed in advance.

[Purpose of device]

An object of the present invention is to provide a through-locking type connecting tool that can be easily connected and disassembled, can dramatically improve work efficiency, and can be reused.

[Means and Actions for Solving Problems]

The present invention is a connecting tool for integrally locking a plurality of independent objects by penetrating and locking them, and is formed by a rod-shaped elastic member such that a radial dimension of a proximal end portion and a distal end portion is larger than that of an intermediate portion. , The tip portion is formed by a pair of curved portions whose middle portion is bulged outward in the radial direction and which is thinner than the middle portion, and each of the curved portions is deformable inward in the radial direction by an external force and the external force. It has elasticity capable of returning to its original shape by removal of, and one end of the curved portion is formed with a hitting surface that is bent in the radial direction and arranged so as to cover the other end, This configuration is intended to achieve the above object.

Therefore, if the base end portion is driven in while pressing the tip end portion against the holes marked or pre-drilled in the plurality of independent objects,
The tip portion bends in a beam shape around the base end portion, and the tip portion itself also bends and deforms in the radial direction, so that the tip portion penetrates a plurality of independent objects. At this time, since the hitting surface is provided on the tip end portion so as to cover the other end, a smooth insertion operation is possible.

After penetrating, the tip portion elastically returns to the original shape. as a result,
Since the radial dimension of the proximal end portion and the distal end portion is larger than the dimension of the intermediate portion, the plurality of independent objects that have penetrated are locked between the proximal end portion and the distal end portion and integrated with each other. Connected to.

On the other hand, when detaching from an independent object, the impact surface is driven in the direction of the base end part, the tip part is reduced in diameter to be submerged in the independent object, and the base end part that is pushed out to the opposite side is pulled appropriately, etc. And pull out. In this way, the tip portion is deformed in the same manner as described above, and after withdrawing, it elastically returns to the original shape again, so that it can be reused.

〔Example〕

An embodiment of a connecting tool according to the present invention will be described with reference to the drawings.

(First Embodiment) A first embodiment is shown in FIGS. 1 to 4, in which the connecting tool is an elastic member 1 formed of stainless steel material having a semicircular cross section (see FIG. 3). It is constructed by bending around the center.

That is, as seen in FIG.
The hole 11 is formed in a circular shape centering on a point, and one side 2 and the other side 3 of the elastic member 1 after bending are parallel to each other with a constant gap 21 to form an intermediate portion 20. An opening 32 is provided on the most distal side of the tip portion 30.

Further, as shown in FIG. 2, the tip portion 30 has a thin shape obtained by scraping off the semicircular arc surface of the elastic member 1,
And curved surfaces 33, 33, 3 with both ends chamfered in an arc shape
It is said to be 3,33. This is for facilitating the deformation of the curved portion 31 and reducing the frictional resistance at the time of driving.

Further, the tip side of the other side 3 of the tip portion 30 is extended longer than the one side 2, and the tip end portion thereof is bent in the radial direction so as to cover the one side 2, thereby forming a hitting surface 36. ing.

Here, when the arrow R direction shown in FIG. 1 is named as a radial direction, the radial dimension of the proximal end portion 10, the distal end portion 30, and the intermediate portion 20 is configured in this order. Therefore, the radial dimension of the intermediate portion 20 is smaller than the radial dimensions of the proximal end portion 10 and the distal end portion 30.

Therefore, when a radial external force is applied to the tip portion 30, the tip portion 30 has the intermediate portion 2 such that the one side 2 and the other side 3 of the elastic member 1 are centered around the base portion 10 like a cantilever.
Bending deformation occurs in the direction of narrowing the gap 21 of 0, and the tip portion 30 itself deforms the curved portion 31 into a more oblong elliptical shape. If the external force is removed, the gap 21,
The curved portion 31 returns to its original shape. Here, the opening 32 has an important role of promoting these flexural deformations.

Next, the operation of this embodiment will be described.

Panel-like independent objects forming building segments 6,
A concentric through hole 17 is provided in each of 7 and 8.

(Coupling) In the original state, inserting the tip end portion 30 into the inlet side 16 of the through hole 17 and driving the outer peripheral surface of the base end portion 10 with a hammer or the like from the direction of arrow X shown in FIG. 1 narrows the gap 21. Since the curved portion 31 is flexibly deformed so as to be horizontally long, the radial dimension of the tip portion 30 is reduced, and the outermost peripheral surface thereof penetrates the outlet side 18 while sliding on the inner surface of the through hole 17. Then, as shown in FIG. 4, the tip portion 30
Elastically returns to its original shape, resulting in independent objects 6, 7,
8 is positioned between the distal portion 30 and the proximal portion 10 and they are integrally connected.

(Disassembly) When disassembling the independent objects 6, 7 and 8, the tip portion 30
When the striking surface 36 is driven in the opposite direction to the case of connection or / and a round bar (not shown) is inserted into the hole 11 of the base end portion 10 and pulled out, the tip end portion 30 is the same as when connecting. Since it is flexibly deformed, it can be pulled out from the independent objects 6, 7, and 8. As a result, the connecting tool elastically returns to its original shape as shown in FIG. The removed connecting tool can be reused.

Therefore, according to this embodiment, if the through holes 17 are previously formed in the independent objects 6, 7, 8 to be integrally connected by a drill or the like, the connecting tool is simply driven into the through holes 17. , They can be connected together. Therefore, compared with the conventional bolts and nuts, there is no need for turning operation and no need for opening operation like split pins, so quick and reliable connection is possible and work efficiency is dramatically improved. Thus, the construction can be completed economically and in a short period of time.

Further, since the radial dimension of the distal end portion 30 and the proximal end portion 10 of the connecting tool is made larger than the radial dimension of the intermediate portion 20, the hole diameter of the through hole 17 to the independent objects 6, 7, 8 is elaborated. Since it does not need to be finished, and it may be smaller or larger than the outer diameter of the intermediate portion 20, a quick and economical coupling work is guaranteed also from this point.

Further, when disassembling the construct, if the driving tool is driven in from the distal end portion 30 side and / or pulled out from the proximal end portion 10, the connecting tool is elastically returned so that it can be reused and the pulling out operation thereof is simple and easy. Yes,
The economic profit can be further improved as compared with conventional bolts, nuts, split pins, and the like.

Furthermore, since the striking surface 36 covers the opening 32 when striking the through holes 17 of the independent objects 6, 7, and 8, smooth penetration can be achieved, and the striking surface 36 is hammered in. Since the connecting tool is punched through, the work of disassembling the structure or the like can be performed easily and reliably.

(Second Embodiment) The second embodiment is shown in FIGS. 5 and 6, and unlike the case of the first embodiment, the rod-shaped elastic member 1 is not formed by bending, but a stepped round shaft member. The tip portion 30 is formed on the. Here, the base end portion 10 uses the original step portion 13 as it is, the intermediate portion 20 is also formed using the original round shaft member itself, and the tip end portion 30 has the same shape as in the first embodiment. One side is long and is bent in the radial direction, and the impact surface 3
6 is formed.

Therefore, the integrated connection and disassembly of the independent objects 6, 7, and 8 can be performed quickly and easily as in the case of the first embodiment.

Further, it is economical because only the tip portion 30 needs to be formed from the round shaft member.

In the above embodiments, the connecting tool is made of stainless steel, but it is essential only that it has elasticity, so it may be made of non-metal or synthetic resin. It may be appropriately selected depending on the material of the independent object to be integrally connected and the size of the through hole.

Further, although the case where the independent object is provided with the through hole 17 in advance is disclosed, it is apparent that the present invention is also applicable to the integral connection of a plurality of independent objects having no through hole 17.

[Effect of device]

INDUSTRIAL APPLICABILITY The present invention has an excellent effect that it can be easily connected and disassembled, work efficiency can be dramatically improved, and it can be reused.

[Brief description of drawings]

1 is a front view showing a first embodiment of a connecting device according to the present invention, FIG. 2 is a side view based on the line II-II of FIG. 1, and FIG. 3 is a line of view of FIG. FIG. 4 is a front view showing a second embodiment of the present invention, FIG. 5 is a front view showing a second embodiment, and FIG.
It is a side view based on arrow VI-VI of a figure. 1 ... Elastic member, 10 ... Base end portion, 20 ... Intermediate portion, 2
1 ... Gap, 30 ... Tip part, 36 ... Hitting surface.

Claims (2)

[Scope of utility model registration request] 1. A connection tool for integrally locking a plurality of independent objects by penetrating and locking them, wherein a rod-shaped elastic member is formed so that a radial dimension of a base end portion and a tip end portion is larger than that of an intermediate portion. The tip portion is formed by a pair of curved portions whose middle portion bulges outward in the radial direction and is thinner than the middle portion, and each of the curved portions is deformable radially inward by an external force and It has elasticity capable of returning to its original shape by removal of an external force, and one end of the curved portion is formed with a hitting surface which is bent in the radial direction and arranged so as to cover the other end. A characteristic connecting tool. 2. In the claim 1 of the utility model registration claim,
A rod-shaped elastic member is bent into approximately two folds, the base end portion is formed into an annular shape having a diameter larger than that of the intermediate portion, and the intermediate portion is formed by a pair of opposing portions connected to the curved portions of the distal end portion. The connecting tool is characterized in that a constant gap is formed between these facing portions.