KR200233576Y1 - Slotted nut for furniture - Google Patents

Abstract

The present invention relates to a nut used to fasten two different furniture and wood by combining with a bolt, and the conventional nut does not penetrate the inner circumferential surface of the bolt fastening part and has only a limited depth, thereby assembling furniture and wood of various thicknesses. Nuts and bolts must be assembled according to the total thickness, and after tightening and loosening several times after assembly, the tightening parts of the wood will shrink and then the tightening should be added as much as the contraction. Since it is necessary to replace other nuts or bolts, it is inconvenient to assemble, and when replacing a new one, it is difficult to easily obtain a bolt or nut that meets specifications and waste additional costs.

The present invention devised to solve such a problem is a single standard of the present invention, which is easy to fasten furniture and wood of various thicknesses, and is easy to fasten, and the fastening state is loosened by shrinking furniture and wood after fastening. Designed to solve the phenomenon, the inner circumferential surface of the body is penetrated and the thread is formed to the end of the body, so that the bolt can be fastened to the end of the body, and at the end of the body, the head is circumferentially larger than the circumference of the outer diameter of the body. It is formed in the bottom surface of the head is formed a groove that can be seated cross-shaped (+) screwdriver is configured to facilitate the fastening with the bolt.

Description

Slotted nut for furniture {.}

The present invention is an improvement of the nut used for fastening in joining furniture and wood such as different cabinets, wardrobes, cabinets, and door locks. The bolts of various sizes, which are fasteners, can be compatible with one standard of the present invention.

Conventional manufacturing technology for furniture fastening nut uses a simple forging processing method, to form a cylindrical inner peripheral surface jig to form the inner peripheral surface to make the shape by hitting the jig produced on the cylindrical material.

In this case, only a limited depth can be formed due to the characteristics of forging, which is cracked or damaged when applying excessive force to form the inner circumferential surface of the cylinder more deeply. There is no choice but to.

However, in the conventional technique, the cylindrical inner circumferential surface does not penetrate, thereby burdening more material as not penetrated, and even when machining to form the thread 2, the tab end 11 of the tab 10, which is a machining tool, The pointed and pointed length cannot form a thread, but the inner circumferential surface is not penetrated. When it comes in contact with the bottom of the tab end 11 and the inner circumferential surface, the depth cannot be formed as much as the depth of the inner circumferential surface itself. The bolt 30, which is a relative fastener, is coupled enough to withstand the fastening tension.

Therefore, nuts and bolts 30 should also be selected according to the total thickness of the furniture wall combined in different furniture and wood assembly, and it is difficult to provide many different bolt sizes, and the nuts also have to have various specifications. There is no situation.

Therefore, conventional furniture and wood fasteners are not compatible with a single standard, so furniture and wood assemblers have lost inventory of having to stock nuts and bolts of various specifications, management failure to manage them, and In addition, they must bear the loss of space to provide a place to store them, and consumers often need to tighten the threaded joints due to the shrinkage of furniture walls during breakage, loss and reassembly of the nut. Purchasing the right parts has caused a lot of inconvenience and difficulty.

The present invention was devised to solve the problems of the prior art, and the purpose of the present invention is to improve the work efficiency and convenience of the workers in customer's satisfaction and standardization and assembly of the fastening nut standard for furniture and wood. It is to

As a technical idea for achieving the object of the present invention, the present invention has a structure in which a cylindrical inner circumferential surface penetrates toward the head 3 and forms a thread to an end below the inner circumferential surface.

1-1 is a perspective view of the present invention 1-2 is a front view of the present invention 1-3 is a cross-sectional view of the present invention

2 is a cross-sectional view of the tab processing

Figure 3a, 3b, 3c is a cross-sectional view showing a state of use of the subject innovation

4A, 4B and 4C are cross-sectional views showing the use state of a conventional nut.

<Description of Main Parts of Drawing>

(1) Body (2) Screws (3) Head

(4) driver seat (6) bolt guide

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1-1 is a perspective view of the present invention, and is largely formed in two parts, one of which is the head 3 and the other of the body. Figure 1-2 is a front view of the present invention. Figure 1-2 is a front view of the present invention. The torso (1) is not shown smaller than the head circumference, and a smaller circumference is formed inward from the head (1) outer diameter circumference. Indicate the surface of the excitation and in the small circumference to form a cross-shaped (+) groove to insert the driver when tightening the present invention, and form a small circumferential circumference at the center of the circumferential screwdriver seating portion (4). -3 is a cross-sectional view of the present invention showing a more detailed structure, the head (3) portion is formed of a circumference larger than the circumference of the outer diameter of the bolt introduction portion (6), the shape of the bottom surface of the general glass plate Similar to the one above the end of the driver's seat (4) out of the center of the circumference of the head, forming a wider plane, slanting down smoothly at the end, and slightly down towards the body (1). And form a straight section toward the body (1) again and meet the outer peripheral surface of the body (1) to form a head (3) shape, at the point of contact with the body (1) at the point of tension when tightening with the bolt (30) A little round is formed to withstand the force more. The bottom of the head (3) forming the flat section is provided with a groove for the Phillips-head driver (+), which is shaped like a cross (+), and the bottom surface. While forming a straight section from the bottom to form an inclined surface toward the center of the circumference to facilitate the driver coupling, the end of the bolt inlet (6) is penetrated into a circumference smaller than the inner circumference When the head is formed, the body (1) is formed with a circumference smaller than the circumference of the head, and the length is formed in a straight line smoothly with the length of the furniture assembly nut most commonly used. In (1), the inner peripheral surface of the bolt introduction portion 6 has a slight inclination toward the inner peripheral surface to facilitate the introduction of the first bolt 30, and a screw thread is formed to a little shorter than the end of the inner peripheral surface so that the bolt 30 can be fastened. And a groove is formed in an elliptical shape below, the end of which meets the circumference penetrated at the lower end of the driver seating portion 4 of the head (3) to form the structure of the furniture through-hole nut of the present invention .

FIG. 2 is a cross-sectional view of the tab 10 of the present invention, which shows the machining state of the tab 10 and the threaded coupling part. The tab 10 rotates at a low speed on the inner circumferential surface of the body 1 and rotates the thread 2. Form and descend.

As shown in the figure, the inner circumferential surface of the body 1 is penetrated, so even when machining to the end of the inner circumferential surface during processing of the tab 10, the tab end 11 does not interfere with any part, so it is necessary to be concerned about overload or damage of the tab 10. Can be worked without, and chip 14 generated by the processing is pulled out through the bottom so that the residue does not accumulate in the inner circumferential surface.

Figures 3a to 3c is a cross-sectional view showing the coupling state of the furniture with different furniture wall thickness in the present invention, the body (1) insertion of the present invention to the left furniture wall (20a) in connecting different furniture walls Insert the bolt 30 into the hole already made in order to insert the bolt 30, which is the mating fastener, from the end of the bolt 30 into the hole already made for inserting the bolt 30 in the right furniture wall as described above. Where the end of the bolt 30 and the inclined surface of the bolt introduction portion (6) of the present invention meets the surface of the bolt (30) or the present invention by rotating the tightening direction in the tightening direction of the inside of the thread (2) formed The bolt 30 is fastened. In particular, as shown in the drawing, the through-hole nut for furniture of the present invention has the thinnest furniture wall as shown in FIG. 3A because the inner circumferential surface penetrates the thread 2 to the end thereof. When combined with a thick bolt can be used to combine the end of the inner peripheral surface of the present invention with a long bolt (30), even when connecting a slightly thicker furniture wall as shown in Figure 3b as the end of the inner peripheral surface of the present invention with a bolt 30 of the same standard It can be used to fasten the nut, and even when connecting a thicker wall of furniture as shown in Figure 3c as the bolt 30 of the same size can be fastened to the inner circumferential surface thread (2) of the present invention without functional problems, the nut of the present invention Even if one standard and a single bolt 30 is used, it is possible to assemble different furniture walls of different standards.

In the drawings, reference numeral 20a denotes a left furniture wall, 20b a right furniture wall, and 30 a coupling bolt.

4A to 4C show an embodiment of a coupling structure of a conventional coupling nut for furniture, and the structure and method of inserting the furniture wall of the nut 40b and the bolt 40a are similar to the present invention, 4A is an embodiment when assembling the thinnest furniture wall, FIG. 4B is an embodiment when assembling the thickest furniture wall, and FIG. 4C is an embodiment when assembling the thickest furniture wall. Yes.

At this time, when fastening different furniture walls, the bolts 40a and the nuts 40b must be selected according to the thickness of each furniture wall. For this reason, the conventional nuts 40b can form threads on the inner circumferential surface. Since the hole depth is not penetrated like 45b and is limited to only a certain depth, the bolt 40a or the nut 40b cannot be used as a standard, and the bolt 40a and the nut 40b are adapted to different furniture wall thicknesses. In addition, when the bolt 40a is threaded to the inner circumferential surface of the nut 40b to connect the furniture wall with a minimum tensile force, the thread is typically formed only by a minimum engagement length that engages the thread. If this happens, the bolt 40a should be tightened to the end of the blockage by the inner circumference of the nut 40b, and no extra fastening space will be left. If the bolt 40a and the nut 40b are loosened and tightened a few times, the furniture wall is contracted by the force and then the bolt 40a or the nut 40b should be tightened as much as the contraction. Without this, the walls of the furniture cannot be firmly secured and their original function is lost.Then, they must purchase and refit bolts 40a and nuts 40b of different sizes, but consumers cannot easily purchase the parts. Not only that, but it can happen again.

Therefore, the inner circumferential surface of the body (1) of the present invention is penetrated and the thread (2) is formed to the end thereof, so that the maximum length is the maximum value, the margin length of the coupling bolt 30 can be secured, and the depth can be freely adjusted. Even when assembling several furniture walls of different thicknesses, it is possible to fix it firmly and practically with the bolts of the single design and few specifications of the present invention.

As described above, in the present invention, in view of the fact that the inner circumferential surface of the trunk 1 penetrates and the thread 2 is formed to the end, the fastening depth of the bolt 30 is freed to match the thickness of the furniture wall nut 40b. It is not necessary to select the bolts 40a and to replace the shrinkage of the furniture wall. Thus, a revolutionary design is possible that the different types of nuts 40b can be unified, and that the bolts 30 also do not require various specifications. Inevitably, it is further penetrated, thus reducing material costs, allowing users to manage compatible products with better quality and minimum inventory and availability.

In addition, the conventional nut (40b) is blocked because the inner peripheral surface is clogged due to the water film phenomenon during the plating operation, the end portion is not plated well, and during the processing of the thread (2), even the bolt (40a) may not be coupled well. Compared with this product, the inner circumferential surface is penetrated, so that no residue is accumulated during processing, so that both the inner tube and the outer appearance are clean even after plating.

Claims (1)

In the conventional furniture and wood fastening nut, which forms a screw thread 2 on the inner circumferential surface of only a part of the entire length and is not penetrated and engages with the corresponding bolt 30, the bolt introduction portion 6 The outer circumferential surface of the circular shape is lowered smoothly downward to form the trunk (1), and at the end forms a circumference larger than the outer diameter circumference of the inlet to form the head (3), the bottom surface of the head (3) cross (+) The driver seating part (4) groove is formed so that the driver can be seated, and connected to the inner side of the driver seating part (4), the inner peripheral surface formed with a thread (2) is formed to meet the hole through the circumference smaller than the circumference of the bolt introduction part (6) Has a thread (2) formed at a slight inclination toward the inner circumferential surface to facilitate bolting at the first inlet, and slightly below the end of the overall length, and has an elliptical surface beneath it. To form and the end portion of the screwdriver seating portion (4) through-hole nut for furniture configured to meet the penetrated portion of the lower end of the end of the nut when tightening the bolt.