KR100201905B1 - Attaching apparatus - Google Patents

Abstract

Conventionally, when attaching an attachment to a plate such as a car, the nut is welded to the back of the plate when tightening with a bolt or nut, but when welding, the difference in thickness of the two objects is large, so that welding is difficult and there is a problem in the reliability of welding. It was not satisfactory such as not being able to do it.

The present invention can be tightened as strongly as welding without welding to the back surface of the plate, and the nut can be attached to the back surface from one side of the front surface of the plate body, such as a steel pipe or a square tube.

In addition, there is a feature that shows the same effect not only on the iron plate, but also on structures such as plastic and paper.

Description

Attachment device of structure

1 is an exploded perspective view of one embodiment of the present invention.

2A is a perspective view showing the assembled state of FIG.

FIG. 2B is a cross-sectional view of FIG. 2A.

2c is a plan view of the plate body.

FIG. 2D is a cross-sectional view of FIG. 2C.

3A, 3B, and 3C are sectional views showing a process of fastening the nut body of FIG. 2A to the plate body.

3d is a cross-sectional view showing a state in which the fastening is completed.

3e is a plan view showing a state in which the fastening is completed on the plate body surface.

Figure 4a is an exploded perspective view of another embodiment of the present invention.

Fig. 4B is a perspective view showing the assembled state of Fig. 4A.

Figure 4c is a plan view showing a state in which the fastening is completed on the plate body surface.

FIG. 4D is a sectional view showing a process of fastening the nut body of FIG. 4B to a plate body. FIG.

5a, 5b, 5c, 5d, 5e, 5f, 5h, 5j, and 5l are perspective views showing an embodiment of the present invention.

5g, 5i, 5k, and 5m are cross-sectional views of FIGS. 5f, 5h, 5j, and 5l.

* Explanation of symbols for main parts of the drawings

1 nut part 2 nut

3: spring part 4: diaphragm part

5: Plate 6: Auxiliary Edition

7: string 8: bolt

9: Attachment 10: Casing

11 bolt hole 12 protruding frame

13: Casing rear 14,15,16,18: Jamming projection of the casing

17: protrusion 21: female thread

22,23: Before and after nut 25: Locking groove

30: sliding protrusion 31: bend

32: spring rear end 34: french nut fixing spring

35: groove 36,37: side hole

38: spring rear part 39: spring projection

41: bolt hole 43: string hole

44: protrusion frame 53: bolt hole

54: insertion hole 61: bolt hole

64: protrusion frame 100: nut body

The present invention is an improved patent of Patent No. 42934 (Attachment Attachment Apparatus for Structures), which is made by inserting a nut into an insertion hole drilled into a plate without using a weld nut when bolting the attachment to a plate such as a car. The present invention relates to a device for attaching an attachment of a structure that can be fastened to a bolt and nut, and particularly to a plastic plate as well as a metal plate.

Conventionally, when attaching an attachment to a thin plate such as an automobile body (car body), a method of directly welding and attaching an iron plate bead, a blind rivet, a blind nut, a welding nut, or an attachment is used. In particular, when attaching the nut to the back surface of the plate in advance, a cage nut (Cage-Nut), which is inserted into the weld nut, blind nut or plate by opening it with a spring force and spreading with a spring force, and a clip nut and a spring plate nut that are used in the outer part of the plate (Spring Nuts for Automibiles) and the like.

In the case of a weld nut welding a relatively thick nut to a thin plate, the difference in thickness between the two objects requires a great welding technique, and sometimes it is very difficult to replace it when welding incorrectly. In addition, when welding a large amount of nuts, there must be the hassle and jig to move the plate to the welding facility, and a small amount of nut welding must also have a welding facility. Therefore, when an unskilled person works, there is a problem in welding reliability, a work environment is also avoided, and there is a problem in that paint is applied after welding. Cage nut has a small load on the nut around the square hole, which is a problem for large loads such as plastic plates.Blind nuts require very precise fastening holes, special tools, and clip nut and spring plate nuts. Limited to the periphery of the plate. In particular, welded nuts, cage nuts, clip nuts, spring plate nuts, etc. are not available in steel pipes or square tube-type structures, and the blind nut may damage the base material (plate) when the plate is made of plastic.

In view of the above problems, an object of the present invention is to attach a nut to the back of the plate without welding, has a strong fastening force and can be attached to the center of the plate, etc., the structure does not require special tools or equipment It is to provide the attachment device of the attachment and to provide the attachment device of the structure that can not be welded or attached to the soft plate, such as plastic, paper, as well as metal plate body, another purpose is to provide a nut on the back side of the front side of the structure, such as steel pipe or square tube An attachment attaching device for a structure that can be installed is provided.

The applicant's prior patent No. 42934 (Attachment Attachment Apparatus of Structure) is to attach the nut to the back surface of the structure by working only on one side of the front surface of the structure, which is covered on the back side such as steel pipe or square tube, Separate and drill the holes for inserting bolt hole and reinforcement plate into the plate, and insert the reinforcement plate (also called attachment plate) connected to the string with the strap in the insertion hole from the front side of the plate and hold the string and use the string to back the plate. A device for attaching attachments to a structure in which a fastening screw hole of a reinforcing plate entered into a bolt hole of a plate body is brought into close contact with each other, and then bolted to an attachment. That is, the bolt body and the insertion hole are formed separately in the plate body which is a structure, and the fastening screw hole is formed in the same number and the same position as the bolt hole of the plate body, and the string is connected to the reinforcement board.

In addition, the fastening screw hole of the reinforcement plate may be a female thread (nut), or a simple hole for tightening blind rivets or tapping screws, the number of strings of the reinforcement plate may be one, two or more, and the tightening space is narrow. If it does not enter, the reinforcement plate may form a bent portion like a spring, and when the reinforcement plate is inserted into the insertion hole, the reinforcement plate does not fall behind the plate body and is temporarily held in close contact with the back side of the plate by pulling. It may be a thin plate to closely adhere the reinforcement plate, and the reinforcement plate may be formed with protrusions, grooves, holes, additional shapes or spaces necessary for attachment of the attachment, and the additional shape may be formed outside the insertion hole. It may be on the outer surface of the plate (see also Patent No. 42934 No. 7). Applicant's Utility Model Registration No. 56264 (Concealed Nut Fasteners Using Nut Fixtures) has a protective support piece (thin long sheet) and a fixing piece, which is the end of the protective support piece, bent outside the plate to bend and fixed to the plate. It is designed to attach a nut, and a strap (manned wire) may be additionally connected to the fixing piece, or to replace a strap such as a fixing piece without additional connection of the strap.

Therefore, the present invention is formed separately from the plate body of the structure, such as Patent No. 42934, the bolt hole and the insertion hole, and the string of the reinforcing plate to be thin plate like the fixing piece and protective support piece of Utility Model Registration No. 56264, This part is made into a plate part to be fixedly attached to the outer surface of the plate, and has a spring part that can be bent when inserted into the insertion hole in a reinforcing plate having a female screw (nut), which is a fastening screw hole, and a spring part and a plate part. It has a bent part in between, and this is made into a nut body. When the nut body of the present invention is inserted into the insertion hole from one side of the plate body, a string is connected to the distal end of the plate, and the nut is inserted into the insertion hole while the string is held, and when the string is pulled, only the plate portion springs out of the insertion hole. It is bent back to the original form is restored to the plate and the outer surface of the plate closely fixed to the nut portion (nut body except the plate portion) is attached to the plate inner surface. Of course, if only the plate is inserted into the insertion hole on the inner side of the plate (there is no need for straps at the distal end of the plate), the plate will be in close contact with the outer side of the plate and the nut will be attached to the inner side of the plate. It can be.

Structural feature of the present invention is to drill the bolt hole and the insertion hole in the plate, the structure, while holding the string, the reinforcing plate connected to the string from the outside of the plate into the insertion hole and using the string female thread hole of the reinforcing plate entered into the plate In the attachment attaching device of the structure in which the bolt holes of the plate body and the plate are matched, and then the bolts are tightened with the attachment, the reinforcement plate is a nut body consisting of a plate part and a nut part, and the nut part comprises a spring part and a nut, A bent part is formed between the spring parts, and when the plate part is inserted into the insertion hole of the plate body and it comes out of the plate body, once it is opened from the spring part and when the plate part completely passes through the insertion hole, the spring part returns to its original shape and the plate part is the plate outer surface. It is a structure in which the nut part (nut body except the plate part) is closely attached to the inner surface of the plate body while being in close contact with the plate.

Hereinafter, embodiments of the present invention will be described in detail with the drawings.

FIG. 1 is an exploded perspective view of an embodiment of the present invention. FIG. 1A is a perspective view in which the diaphragm 4 and the spring part 3 are integrated into one, and the diaphragm 4 has a bolt hole 41 and a protruding frame thereof. 44 is formed in the plate bolt hole 53, and a string hole 43 is formed. In the spring portion 3, the bent portion 31 and the projection 35 of the casing are recessed with the groove 35 and the spring. There is a rear 38.

FIG. 1B is a perspective view showing the nut 2 and the casing 10. The nut 2 with the female threaded portion 21 is inserted into the casing 10 so that the nut 2 cannot be pulled out by the catch pieces 14 and 16. FIG. do.

FIG. 1C is a perspective view of the lower surface of the casing 10, and the locking pieces 14 and 16 may be protruded in a standing shape in advance.

FIG. 2A is a perspective view showing the assembled state of FIG. 1, and FIG. 2B is a cross-sectional view of FIG. 2A, which projects the projecting piece 17 of the casing into the spring recess 35 and is integral with the diaphragm 4. The nut part 100 which consists of the diaphragm 4 and the nut part 1 which pressed the rear end 32 by the latching piece 18 and fixed it is shown, The nut part 1 connects the spring part 3 to the nut 2 ) And a casing (10). The protruding frame 44 of the diaphragm 44 and the female screw 21 of the nut 2 coincide, and the string hole 43 of the diaphragm inserts the string 7 or a tool, and the nut body 100 is inserted into one of the plate front sides. It is used when it is inserted into (54) and only the diaphragm 4 comes out of the insertion hole 54. (See Figure 4.)

FIG. 2C is a plan view of the plate body, in which the insertion hole 54 and the bolt hole 53 are formed separately in the plate body 5, indicating that this is a main part of the present invention, and FIG. 2D is a cross-sectional view of FIG.

In addition, the protruding frame to be fitted into the bolt hole 53 of the plate body may be used by forming the protruding frame 12 in the casing bolt hole 11 as well as the protruding frame 44 formed in the bolt hole 41 of the diaphragm. In addition, the female threaded portion 21 is formed on the protruding frame 12 (see also 5e), and may be used as the nut 2. In this case, the protruding frame may protrude downward.

The diaphragm 4, the spring part 3, and the bent part 31 may be integrated, and the nut 2 may also be integrated to form a single nut (see also part 5l). .

The material of the nut 2, the spring part 3, and the plate part 4 may be made of metal, plastic, or the like. When the plate part tip 42 protrudes longer than the nut 2 tip, the plate part 4 is opened. There is an advantage that it can be easily inserted into the insertion hole 53 of the plate body, and when the nut body 100 is inserted into the insertion hole and the string 7 is pulled so that only the plate 4 comes out of the plate body, It is preferable to protrude longer than the distal end portion 42.

Particularly, when the protrusion piece 17 of the casing is projected on the inner surface of the spring groove 35, the nut part 1 is prevented from lifting off the plate inner surface 52 even when the nut 2 is pressed and tightened with the bolt 8. have.

In addition, if the casing rear portion 13, which is extended with respect to the bent portion 31, is brought into close contact with the plate inner surface 52, the nut is tightened by a bolt (8) when the nut 2 is pressed and tightened. The pressure received by the section 1 can be reduced. Since the insertion hole 54 of the plate is for inserting the plate 4 or the nut 100, any shape such as a rectangle or a circle can be used. The plate bolt hole 53 is a protrusion frame 44 or a casing of the plate. The projecting frame 12 of the bolt hole 11 should be drilled slightly larger so as to be inserted into the inside.

The nut body may be formed in various forms such as a nut body 100 wrapped with a metal or plastic casing 10, a shape in which the nut 2 is welded to the spring part 3, a spring plate nut shape, and the like. The bolt hole 41 formed in the groove does not need to be drilled through the bolt hole 41 when it does not need to coincide with the female screw 21 (see FIG. 4), and may be partially formed only in some cases.

3A, 3B, and 3C are cross-sectional views illustrating a process of fastening the nut body of FIG. 2A to the plate body, and the fastening process is slightly longer than the tip of the nut 2 of the nut part 1 as shown in FIG. 3A. If the diaphragm tip 42 which is present is inserted from the inner surface 52 of the plate body into the insertion hole 54 and the nut part 1 is pushed side by side in the direction of the plate bolt hole 53 against the inner plate surface 52 of the plate body, 3b and 3c, the diaphragm 4 also advances toward the bolt hole 53 from the plate outer side surface 51, spreading by the spring action 3 ,.

3d is a cross-sectional view showing the state in which the fastening is completed, and the diaphragm 4 which has been opened when the diaphragm 4 passes through the insertion hole 54 and the bent portion 31 is fully inserted into the insertion hole 54 is a spring. By the restoring force to return to the original shape by the action of the part (3) closely adhered to the plate outer surface 51, the protruding frame 44 is inserted into the bolt hole 53, the plate portion 4 is separated from the bolt hole 53 The nut part 1 (the nut body 100 excluding the plate part 4) is closely attached to the inner surface 52 of the plate body, so that the nut 9 can be attached to the nut 9 with the bolt 8 later. It can be attached by tightening with. Therefore, the plate protrusion 44 is inserted into the plate bolt hole 3, and the bent portion 31 is already caught in the insertion hole 54, so that the nut portion 1 remains on the plate inner surface even when tightened with the bolt 8. At (52), it cannot move to the left, right, front, back, up or down.

FIG. 3E is a plan view showing the state in which the fastening is completed on the surface of the plate body, in which the bent portion 31 is inserted into the insertion hole 54 of the plate body, and the plate bolt hole 41 and the nut female threaded portion in the bolt hole 53 of the plate body. (21) is matched, the plate 4 is in close contact with the plate surface 51 can easily tighten the attachment (9) with the bolt (8).

At this time, even if the nut part 1 of the inner surface of the plate is pressed using the bolt 8, the casing rear part 13 is formed long in the longitudinal direction with respect to the bent part 31, and the protruding piece 17 Since the nut part 1 is not lifted from the inner surface of the plate even at a considerable pressure, it is convenient to tighten the bolt.

In addition, the nut body 100 can be fastened even after the insertion hole 54 and the bolt hole 53 are formed in the plate body and the paint is applied, so that the nut body 100 can be used in the final process. 4) For example, remove the protruding piece 44 from the plate bolt hole 53 and then remove it. When the string 7 or a manned tool is inserted into the string hole 43, the nut body 100 is inserted into the insertion hole 54, and the pull portion 4 is pulled out to the outside of the plate hole 54. One side fastening is possible because it can come out.

FIG. 4A is an exploded perspective view of another embodiment of the present invention, and FIG. 4B is a perspective view showing the assembled state of FIG. 4A, and the nut 2 is provided at the side holes 36 and 37 of the spring portion 3 having the diaphragm 4. And the front and rear protrusions 22 and 23 are used as the nut body 100. Unlike the first embodiment, the plate portion 4 does not need the bolt hole 41, so that the width of the plate portion 4 can be narrowed. Therefore, there is an advantage that the width of the insertion hole 54 can also be narrowed when only the plate 4 is pushed into the insertion hole 54 on the inner surface of the plate body. At this time, the nut protrusion 23 has a function of a right hand force (pairing) structure, as shown in the extended rear portion 13 of FIG.

4C is a plan view showing the state in which the fastening is completed on the plate body surface, and it can be seen that there is no bolt hole in the diaphragm 4.

FIG. 4D is a cross-sectional view showing the process of fastening the nut body of FIG. 4B to the plate body. The nut body 100 is inserted into the insertion hole 54 while holding the string 7 at the distal end of the plate portion. It is sectional drawing which pulled out only the plate part 4 to the insertion hole 54 outside. At this time, since the auxiliary plate 6 having the protruding frame 64 to enter the plate bolt hole 53 on the nut 2 is assembled with the nut 2, the nut body 100 is firmly attached to the plate inner surface 52. It is attached, and of course, if the protruding frame is formed on the nut 2, the auxiliary plate 6 is not necessary. When attaching the nut body 100 on the inner surface 52 of the plate body, only the diaphragm 4 is inserted into the insertion hole 54. In this case, the diaphragm 4 does not need the bolt hole 41, so the insertion hole ( 54) Both width and width can be narrowed.

5a, 5b, 5c, 5d, 5e, 5f, 5h, 5j, and 5l are perspective views of still another embodiment of the present invention. 5b and 5c show the nut body which the diaphragm 4 and the spring part 3 were integral, and welded to the side surface, the lower surface, and the upper surface of the nut 2, respectively. 5d shows that the diaphragm 4 and the spring part 3 are integrally formed, and the spring part 38 is provided in the longitudinal direction with respect to the bent part 31 so as to have a right-force (pairing) structure. It shows that the nut body wrapped by welding or casing can be formed. 5E is a partially cutaway perspective view of the nut body in which the protruding frame 12 of the casing bolt hole 11 is formed downward in FIG. 1 and the female screw portion 21 is formed thereon.

5f shows the flange nut 2 sandwiched between the spring portion 33 and the spring portion 34, and a hexagonal hole is formed in the spring portion 34 so that the hexagonal flange nut cannot turn as the bolt 8 is tightened. It is a perspective view of one nut body, FIG. 5G is sectional drawing of FIG. 5F.

5h and 5i are a perspective view and a cross-sectional view of the nut body of the present invention in which the bolt hole 41 and the protruding frame 44 are formed in the diaphragm 4, and the spring projection 39 has a nut catch. It shows the state which caught the groove | channel 25 and the nut 2 was not removed from the spring hole 36. FIG.

5J and 5K are the perspective view and sectional drawing which showed the nut body which formed the nut back part 23 in the longitudinal direction centering on the bend part 31 in the nut body of FIG.

5l and 5m show a perspective view and a side cross-sectional view of a nut body in the form of a spring plate nut in which the diaphragm 4, the spring part 3, and the nut 2 are integrated, and a sliding protrusion 30 is formed on the bottom surface of the spring plate nut. Formed to make it easy to be inserted into the insertion hole 54 of the plate body.

5A to 5L, the straps 7 of the diaphragm 4 are connected to each other, and the nut body 100 is inserted into the insertion hole 54 on one side of the plate outer surface 51. ), Only the plate portion 4 can come out of the insertion hole 54, and the nut portion 1 is held by the plate inner surface 52, and only the plate portion 4 (in this case, a string is necessary for the plate portion). None) The nut 1 can be attached to the inner surface 52 of the plate body even when inserted into the insertion hole 54.

By utilizing the attachment attachment device of the structure of the present invention, in addition to forming the bolt hole and the insertion hole in the plate body, it is possible to easily and powerfully attach the nut to any position on the inner surface of the plate without special tools or facilities, and by welding It can eliminate the troubles such as trouble, avoidance of work, and deterioration of welding quality and durability.It can be fastened to various materials such as iron plate, plastic, and paper. It is a useful invention that can replace the welding nut because there are various advantages and easy and economical fastening.

Claims (6)

Drill the bolt hole 53 and the insertion hole 54 into the plate body 5, which is a structure, and plug the reinforcing plate connected to the string in the state of holding the string 7 to the insertion hole 54 from the outside of the plate body and utilize the string. In the attachment attaching device of the structure in which the female screw 21 of the reinforcing plate entered inside and the bolt hole 53 of the plate body are matched and then the attachment 9 is fastened to the bolt 8, the reinforcing plate is attached to the plate portion ( 4) and a nut body 100 consisting of a nut part 1, wherein the nut part 1 is composed of a spring part 3 and a nut 2, and is disposed between the diaphragm part 4 and the spring part 3. When the bent portion 31 is formed, the plate portion 4 is inserted into the insertion hole 54 of the plate body, and when it is pushed out of the plate body, the plate portion 4 is opened from the spring portion 3 and the plate portion 4 is inserted into the insertion hole ( 54, the spring part 3 returns to the original shape, and the plate part 4 adheres to the plate outer surface 51, and the nut part 1 (plate part 4) is attached to the plate inner surface 52. Nut except Attachment mounting device of the structure, characterized in that to attach tightly to 100]. The nut according to claim 1, wherein the spring rear portion 38 and the nut 2 of the spring 3 connected to the diaphragm 4 are inserted into the thin casing 10 through the engaging pieces 14, 15, 16 and 18. Attachment device for a structure, characterized in that the sieve (100). The attaching device for attaching a structure according to claim 1 or 2, wherein a bolt hole (41) and a protruding frame (44) are formed in the diaphragm (4). Apparatus according to claim 1 or 2, wherein the rear portion (13,38) extending in the longitudinal direction about the bent portion (31) is formed. Apparatus according to claim 2, characterized in that the projecting piece (17) of the casing (10) protrudes into the spring recess (35). The attachment apparatus for attaching a structure according to claim 2, wherein a protruding frame (12) is formed in the bolt hole (11) of the casing (10) and a female screw (21) is formed thereon.