JPH01108407A - Nut - Google Patents

Abstract

PURPOSE: To mount the nut at any position of the bolt and simplify the operation by cutting out bolt engaging notches with screw threads at the bottom and openings in opposite direction with respect to each other on the two projecting pieces forming a U shape so as to freely engage and disengage in the outer peripheral direction of the bolt. CONSTITUTION: A metal plate with elasticity is bent into a U shape. The distal ends 2a, 3a of a pair of parallel upper and lower projecting pieces 2, 3 spaced by a distance larger than the diameter of a bolt 4 are bent. The space between the bent ends is smaller than the diameter of a bolt. U-shaped bolt engaging notches 5, 6 with openings in opposite direction with respect to each other are arranged on the two projecting pieces 2, 3. Engaging portions 7, 8 for screwing with the screw threads of the bolt 4 are formed at the bottom portions thereof. Thus, it is possible to mount the nut at any position of the bolt 4 without the need for special tools, hence it is possible to fix or dismount parts rapidly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a nut that can be attached to and detached from a bolt in one click.

[Conventional technology and its problems]

For example, use hanging bolts to attach parts to buildings, etc.

To suspend the suspension, as shown in FIG. 10, suspend the suspension bolt 21 from the fixing member 20, and attach the
It is well known that the suspended support member 24 is fixed with a pair of upper and lower hexagonal nuts 22 and 23, but since the hexagonal nut can only be screwed in from the end of the bolt, it is difficult to secure the suspended support member 24. The hexagonal nut 22 that is pressed from above must be screwed into the suspension bolt 21 in advance, and since the hexagonal nut cannot be moved on the axis of the bolt unless it is rotated one by one, the installation of the suspended support member 24 is a labor-intensive task. It took a lot of effort.

Therefore, nuts that could be easily attached to and detached from bolts were devised.
Publication No. 22 discloses an annular nut 2 as shown in FIG.
5 is formed with a notch in the shape of an abbreviation, internal threads 26 are formed above and on the sides of the notch, and an inclined groove 27 is formed in the upper part on the opposite side of the notch, nut 25
The present invention proposes an invention in which the bolt 21 is formed to be tiltable so that it can be slid along the bolt 21'' or screwed into the female thread 26.

Therefore, this nut 25 has its axis line at port 1-21.
'By tilting the bolt 25 with respect to the axis of
Since it can be slid freely on the bolt 21', the effort required to move it on the bolt 21' can be reduced.
What can only be done from the end at 1' is
Since it is the same as a general hexagonal NAND, if the bolt 21' is inserted through multiple members, the nut 25 located between the members must be attached to the bolt 21' in advance. After inserting the bolt 21' into the member, in order to attach or remove the nut 25 from the member I-21', the member I-21' must be removed one by one from the member, which is difficult when fixing multiple members to the bolt. The trouble of putting on and taking off Nando's was completely unavoidable.

In addition, if the end face of the notch part contacts the member, the nut 25 may tilt and become impossible to tighten, so the nut 25 is designed so that the end face on the opposite side of the notch part contacts the member. When installing, it is necessary to check the posture while fitting onto the bolt 21', which makes attachment and detachment to the bolt 21' even more troublesome.

SUMMARY OF THE INVENTION An object of the present invention is to provide a nut that can be attached to and removed from a bolt without impairing the fastening force of the members and without having to confirm the posture of the nut.

[Means for solving problems]

In order to achieve the above object, the present invention provides a bolt with a substantially U-shape so that it can be bent freely from the outer circumferential direction, and the two opposing protruding pieces have a shape that intersects with the protruding direction of each protruding piece. A bolt-engaging groove extending in the direction of At the bottom of the bolt engagement groove,
The structure is such that an engaging portion is formed to be screwed into the thread of the bolt.

[Action/effect of the invention]

In this configuration, the naph and to are fitted onto the bolt from the outer circumferential direction with their protruding pieces parallel to the axis of the bolt, and then the bolt engagement grooves of both protruding pieces are fitted onto the bolt. When the nut is rotated 90 degrees in a direction substantially perpendicular to the axis of the bolt, both protruding pieces become substantially perpendicular to the axis of the bolt, and the engagement portions formed at the bottoms of the bolt engagement grooves However, since the nut is screwed into the threads of the bolt from both sides of the axis, that is, the engaging portion of the protruding piece is fitted onto the bolt, so that the nut can be screwed onto the bolt.

Therefore, in order to fasten a member inserted through a bolt, it is enough to fit the nut onto the bolt, change its position near the member to be fastened, and then screw it in a very small distance. Dimensions (i.e., dimensions that allow the nut to rotate in a direction perpendicular to the axis of the bolt without the side end of the protruding piece coming into contact with the fastened member) After unscrewing, rotate approximately 90 degrees in the opposite direction. When rotated, the nut will be removed to the side of the bolt.

In this case, when one protruding piece of the NAND comes into close contact with the fastened member in the fastened state, the nut cannot tilt or shift in any direction, and the threaded state between the engaging part and the bolt is maintained. , the members to be fastened are securely and firmly fastened, and since the nut is approximately U-shaped, it can be fastened even if any protruding piece is in close contact with the member to be fastened. Since there is no direction for fastening, there is no need to further check the orientation when attaching to the bolt.

Note that the nut according to the present invention does not require any special tools and can be tightened with an ordinary spanner wrench, etc., but it is also possible to tighten the nut with a screwdriver or the like between the bolt and the back side that connects both protruding pieces. Turn it! It can also be tightened.

As described above, the nut according to the present invention can be attached to any part of the bolt in one click, and can be firmly fastened even when attached from any direction. , even when a plurality of members are fixed to a bolt, the work of fixing and unfixing the members can be performed quickly.

〔Example〕

Next, an embodiment of the present invention will be explained based on the drawings (Figs. 1 to 5). In the drawings, reference numeral 1 is a nanometer according to the present invention, and the nanometer l-1 is made of elastic material such as spring steel. It is formed by bending a metal plate having a substantially U-shape, and the vertical distance S between the pair of upper and lower protruding pieces 2 and 3 extending parallel to each other is made larger than the diameter of the bolt 4 by an appropriate dimension. ,
The tips of each of the protruding pieces 2 and 3 are bent into a tapered V-shape, and the distance S1 between the tips of the bent pieces 2a and 3a is made smaller than the diameter of the bolt 4. Accordingly, the nut 1 is configured to be able to be fitted into and removed from the bolt 4 from the outer circumferential direction against the elasticity of each of the protruding pieces 2.3.

Each of the protruding pieces 2 and 3 has a
The bolt engaging grooves 5 and 6 each have a substantially U-shaped bolt engaging groove 5,6 that extends in a direction crossing the protruding direction of Each bolt engagement groove 5, 6 is cut out so that a perfectly circular hole is formed. Each bolt engaging groove 5.
6 is formed so that the groove width S2 at the entrance thereof is slightly larger than the straight edge of the bolt 4, and the radius of curvature R at the bottom of each bolt engagement groove 5.6 is set to the threaded thread of the bolt 4. The bolts are set to dimensions corresponding to the root diameter or effective diameter of the bolts, so that they are partially screwed into the threads of the bolts 4 in the circumferential direction at the bottoms of the respective bolt engagement grooves 5 and 6. Engagement portions 7 and 8 having a triangular cross section are formed.

In the above configuration, as shown in FIGS. 4 and 5,
The nut 1 is fitted onto the bolt 4 from the side against the elasticity of each of the protruding pieces 2 and 3, and then the bolt engagement grooves 5 and 6 are fitted onto the bolt 4, and the nasol -1 by 90 degrees in the direction perpendicular to the axis of the bolt 4, that is, in the direction shown by arrow A in FIG. The engaging portions 7.8 in 2 and 3 are screwed together with the bolt 4 from both sides across the axis line, and the state is the same as when the poles 1-4 are screwed into each protruding piece 2.3. The nut 1 can be screwed in by rotating it around the axis of the bolt 4.

Therefore, when fixing the member 9 at a mid-height position of the bolt 4, as in the case of suspending a member from a hanging bolt, the member to be fixed 9 is supported at a predetermined height using a hexagonal nand 10 or the like. After the nut 1 is fitted onto the bolt 4 near the member to be fixed 9, the nut 1 is moved to the vicinity of the member to be fixed 9, and then the posture is changed in the manner described above, and then the nut 1 is fitted onto the bolt 4 in the vicinity of the member to be fixed 9. Conversely, from the above-mentioned fastened state, screw the nut 1 upward by a certain distance (a dimension that allows the nut 1 to rotate 90 degrees in the direction orthogonal to the axis of the bolt 4). After returning it, the nut 1 can be removed laterally by rotating the nut 1 in the opposite direction and changing its position so that each protruding piece 2.3 is approximately parallel to the axis of the bolt 4. .

In this case, when the lower projecting piece 3 is in close contact with the fixed member 9, the nut 1 cannot be tilted in any direction, so that its locked state is maintained, and the fixed member 9 is securely held. Moreover, it can be firmly fastened, and any of the protruding pieces 2
, 3 are fastened even if they come into close contact with the fastened member 9, there is no need to further check the mounting posture of the nut 1 when fitting it onto the bolt 4.

According to the embodiment described above, the nut 1 is rectangular in plan view and can be turned with a closed spanner range, but the nut 1 can be turned with a closed spanner range. You can also insert a screwdriver into the gap and turn nut 1.

The shape of the nut 1 is not limited to the above-mentioned one, but may be formed into a simple U-shape or a 0-shape as shown in FIG. Bending part 2a
, 3a, the guide pieces 2b, 3b have a V-shaped shape that widens toward the tip.
It is also possible to connect the protruding pieces 2.3 as shown in Fig. 3.
Forming the inwardly bent parts 2a, 3a at the tips of the bolt 4 has the advantage of preventing the nut 1 fitted onto the bolt 4 from accidentally falling off. When the guide pieces 2b, 3b are connected, there is an advantage that the nut 1 can be easily fitted into the bolt 4 while retaining the advantages of the bent portions 2a, 3a.

Furthermore, it goes without saying that the material of the nut 1 is not limited to the spring steel of the embodiment described above, but may also be made of other metal plates such as stainless steel, Guicast, or synthetic resin.

Further, the form of the engaging portion 7.8 that is screwed into the bolt 4 is not limited to the above-mentioned embodiment. ,3
When the plate thickness t of the nut 1 is thin, or when the material of the nut 1 is synthetic resin, etc., as shown in FIGS. A protrusion 11.12 that partially surrounds the periphery of the bolt 4 is integrally provided, and this protrusion 11.12 is formed with retaining portions 7a and 8a that are threadedly engaged with multiple threads of the bolt 4. In addition, when these protrusions 11 and 12 are provided, the engaging portions 7a and 8a formed thereon may be formed into long groove holes extending in the circumferential direction of the bolt 4, as shown in FIG. The engaging portions 7b, 8b are shaped like long slots.
b, -I

[BRIEF DESCRIPTION OF THE DRAWINGS] FIGS. 1 to 9 show embodiments of the present invention, FIG. 1 is a perspective view of a nut according to the first embodiment of the present invention, FIG. 2 is a plan view,
Fig. 3 is a side view, Fig. 4 is a perspective view showing the installation state, Fig. 5 is a sectional view showing the installation state, Fig. 6 is a side view showing another embodiment, Figs. 8 and 9 are cross-sectional views showing other forms of the engaging portion, and FIG. 10 is a view showing a conventional example.
FIG. 11 is a sectional view showing the prior art. 1...Nut, 2,3...Protruding piece, 4...
Bolt, 5, 6... Bolt engagement groove, 7.8.7a,
8a, 7b, 8b... engaging portions.

Claims (1)

[Claims] (1) The bolt is formed into a substantially U-shape so that it can be freely fitted and removed from the outer circumference, and the two opposing protruding pieces have a bolt engagement that extends in a direction that intersects the protruding direction of each protruding piece. A mating groove is cut out so that the bolt engagement groove in one protrusion piece and the bolt engagement groove in the other protrusion piece open in opposite directions, and at the bottom of the bolt engagement groove in each of the protrusion pieces. is a nut formed with an engaging portion that is screwed into the thread of the bolt;