KR200251788Y1 - A structure of boot band - Google Patents

Abstract

The boot band structure according to the present invention has a boot band having a plurality of downward hooks 12a and 12b and upward hooks 14a and 14b, a clamping portion 16, a channel portion 18, and a nose portion 20. In the structure, the first and second downward hook (12a) (12b) and the upward hook guide which is formed in both ends of the boot body 10 in series to integrate the downward hook guide insert (12c) so as to correspond to each other. First and second upward hooks 14a and 14b incorporating the insert 14c; First and second reinforcing grooves (16a) (16b) formed concave in parallel with said clamping portion (16); First and second slots (18a) and (18b) formed in parallel to the channel portion (18) and at the same time as the channel portion inclined surfaces (18c) formed outwardly from the first and second slots (18a) and (18b); Since the nose portion 20 is formed on the nose portion 20 formed to correspond to the channel portion inclined surface 18c of the channel portion 18c and the nose portion projection surface 20b, the material length is reduced. And at the same time to ensure the durability, it is possible to be tightened while automatically adjusted to a precise standard.

Description

Bootband Structure {A STRUCTURE OF BOOT BAND}

The present invention relates to a boot band structure, and more specifically, to connect the boot to prevent the entry of foreign matter to the constant velocity joint that transmits power at constant velocity by placing the contact points of the driving shaft and the driven shaft in two dividing lines from the intersection angle of the shaft. The present invention relates to a boot band structure in which the outer periphery of the boot can be tightened by a band.

In the conventional boot band structure, as illustrated in FIG. 1, when both ends of the metal band 1 on the roof are superimposed on the lever 2 corresponding to the curvature of the loop and fixed to each other, the spot has a welding point P. It is fixed by welding, and the clip 3 is fixed by spot welding at the predetermined position of the metal band 1 so that the end of the lever 2 is folded and fixed when it is folded on the metal band 1.

While the magnifying glass D is maintained before the fastening of the metal band 1 configured as described above, the metal band 1 is placed on the outer surface of the constant velocity joint boot (not shown), which is a protective packing, when the metal band 1 is fastened. By folding the tip of the lever 2 on the clip 3 and folding it, the tightening force is generated by adjusting the magnifying glass D to the shrinking diameter d, and the clamping force is generated. Tighten the to maintain the fastening state.

However, in the conventional boot band structure configured as described above, since the lever 2 and the clip 3 are assembled by spot welding, it is difficult to maintain a precise shrinkage diameter d and is complicated to manufacture, resulting in a high manufacturing cost. There is an unreasonable problem of lowering, and in particular, since the loop is in a closed curve state, it can be used without any inconvenience in the assembly line of the vehicle, but in the state of the finished vehicle, there is a problem that the constant velocity joint must be removed when the metal band 1 is to be replaced.

Therefore, the present invention was devised to solve the above problems, and the object of the present invention is to enable mass production to a precise standard by press working using a single metal plate and at the same time facilitate the disassembly and assembly (fastening). In addition, the present invention provides a boot band structure that can be fastened while being automatically adjusted in a correct direction.

The boot band structure according to the present invention made to achieve the above object is a boot band structure having a plurality of down hooks and up hooks, a clamping portion, a channel portion, a nose portion, is formed in series at both ends of the boot body First and second upward hooks integrating the first and second downward hooks integrated with the downward hook guide insert and the upward hook guide inserts so as to correspond to each other; First and second reinforcing grooves formed concave in parallel with the clamping portion; A channel portion inclined surface formed on both sides of the channel portion at the same time as the first and second slots are formed in parallel with the channel portion; And a nose portion inclined surface and a nose portion protrusion surface formed on the nose portion so as to correspond to the channel portion inclined surface of the channel portion.

1 is a perspective view showing a conventional boot band structure;

Figure 2 is a perspective view showing a boot band structure according to the present invention in an expanded state,

3 is a cross-sectional view showing a boot band structure according to the present invention in a fastened state;

Explanation of symbols on the main parts of the drawings

10: boot body 12a, 12b: first and second downward hook

12c: downward hook guide insert 12d: downward hook chamber

14a, 14b: first and second upward hooks 14c: upward hook guide insert

14d: upward hook chamber 16: clamping portion

16a, 16b: first and second reinforcement grooves 18: channel portion

18a, 18b: first and second slots 18c: channel section slope

20: nose part 20a: nose part inclined surface

20b: nose part bump surface

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 and 3, the boot band structure according to the present invention has a boot body 10 made of a metal material and a longitudinal direction at a position close to one end with respect to the planar portion of the boot body 10. First and second downward hooks 12a and 12b formed in series at regular intervals and formed in series at regular intervals along the longitudinal direction at positions close to the other end with respect to the planar portion of the boot body 10. And the first and second upward hooks 14a and 14b which are respectively coupled to the first and second downward hooks 12a and 12b when the boot is fastened, and the planar portion of the boot body 10. While the lower part is opened by drawing at a position proximate to the second downward hook 12b, the upper part is bent into a declination shape projecting upward, and at the same time, the curved upper part is concave in parallel from the center to the lower part. The clamping portion 16 which forms the first and second reinforcing grooves 16a and 16b, The first and second slots 18a and 18b are formed in parallel with the planar portion of the boot body 10 at a position proximate to the clamping portion 16 and at the same time, the first and second slots 18a and ( An end portion close to the first and second upward hooks 14a and 14b with respect to the other end of the boot body 10 and the channel portion 18 having the channel portion inclined surface 18c formed on both sides from 18b). The nose portion 20 is formed on both sides of the nose portion inclined surface 20a so as to be aligned with the center of the channel portion 18 while being guided on the center line of the channel portion 18 at the same time. ; Nose Aspect).

That is, the length of the boot body 10 is determined according to, for example, the outer circumference of the boot (not shown), and the thickness is, for example, made of a thin metal plate of about ± 1 mm and at the same time, the width is For example, use ± 10mm.

The first and second downward hooks 12a and 12b and the first and second upward hooks 14a and 14b are downward from the boot body 10 by a first cutting process at one end thereof. And upward hook chambers (12d) (14d) (Chamber) are formed, and bends are formed at the other end by the second bending process from the boot body (10).

At this time, the bent portion is bent to block the remaining portion except for the portion facing the hole in order to improve buckling and shearing stress, and the bent portion is located at a boundary portion facing the bent portion with respect to the bent portion. When the first and second downward hooks 12a and 12b and the first and second upward hooks 14a and 14b overlap with each other at the center of the end, the contact area is increased and the guide role is increased. The down hook guide insert 12c and the up hook guide insert 14c are each integrally protruded so as to automatically align the state on the center line.

The channel portion inclined surface 18c on the channel portion 18 side is positioned at the first and second slots 18a and 18b and bent to correspond to the angle of the nose portion inclined surface 20a.

When fastening a boot (not shown) using the boot body 10 of the present invention configured as described above, first, the state of FIG. 2 is bent to form a circular shape as shown in FIG. 3, and at both ends of the boot body 10. The first and second downward hooks 12a and 12b and the first and second upward hooks 14a and 14b that are formed are fastened to correspond to each other by a locking method.

At this time, the first and second downward hooks 12a and 12b and the first and second upward hooks 14a and 14b are bent at a predetermined angle so as to coincide at an angle corresponding to each other, and the first and second hooks 12a and 12b are also bent. Since the lower hook guide inserts 12c and 14c are provided at the centers of the end portions of the lower hooks 12a and 12b and the first and second upward hooks 14a and 14b that face each other, the first and second hooks 12a and 12b are respectively provided. When the second downward hooks 12a and 12b and the first and second upward hooks 14a and 14b overlap with each other, the contact area is increased while the fastening state is automatically moved on the center line while acting as a guide. Will be aligned.

The entirety of the first and second downward hooks 12a and 12b and the first and second upward hooks 14a and 14b is downwardly hooked into a predetermined area by the cutting process from the boot body 10. ) And the upside hook chamber 14d, and the one end of the downside hook chamber 12d and the upside hook chamber 14d is bent by bending, and the bent portion is formed with the downside hook chamber 12d and the upside hook chamber 14d. Since the rest of the hooked portion except for the portion facing the hook chamber 14d is bent, the buckling and shearing stress are improved.

Since the first and second downward hooks 12a and 12b and the first and second upward hooks 14a and 14b are provided in series at regular intervals along the longitudinal direction of the boot body 10, respectively. When fastened correspondingly to each other to ensure the straightness (alignment on the center line).

In addition, since the first and second reinforcing grooves 16a and 16b are disposed in parallel at the center of the flat portion, the clamping portion 16 does not reduce the tightening force during bending, and reduces the depth of the dooing during pressing. It improves mold durability and improves quality.

The channel portion 18 has a structure in which first and second slots 18a and 18b are provided, and a channel portion inclined surface 18c is formed across the first and second slots 18a and 18b. Therefore, in the case of the channel portion inclined surface 18c, the nose portion 20 acts to guide the nose portion 20 on the center line of the channel portion 18 when tightened even when the nose portion 20 is not aligned at the center of the channel portion 18. In the case of the first and second slots 18a and 18b, the first and second slots 18a and 18b play a role of increasing seating property (compliance) which may be weakened due to an increase in rigidity according to the channel portion inclined surface 18c.

When the nose portion 20 and the channel portion 18 are coupled to each other, the nose portion 20 has a structure in which a nose portion inclined surface 20a is formed on both sides and a nose portion protrusion surface 20b is formed. The nose part inclined surface 20a and the nose part projecting surface 20b are easily guided to the channel part inclined surface 18c to help the automatic coincidence.

As described above, the boot band structure according to the present invention includes a plurality of downward hooks and guide inserts and chambers corresponding to each other in series by one metal material, a clamping part having a plurality of reinforcing grooves installed in parallel, and a plurality of parallel installations. It is press-processed to form a channel part with slots and inclined surfaces, and a nose part with inclined surfaces and protrusions, so as to reduce the length of the material and to ensure durability and to be tightened while automatically adjusting to precise specifications. There is one effect.

Claims (2)

In the boot band structure having a plurality of down hooks and up hooks, clamping portion, channel portion, nose portion, First and second downward hooks 12a and 12b and upward hook guide inserts 14c which are integrally formed at both ends of the boot body 10 and integrated with downward hook guide inserts 12c so as to correspond to each other. First and second upward hooks (14a) and (14b) incorporating the first and second hooks; First and second reinforcing grooves (16a) (16b) formed concave in parallel with said clamping portion (16); First and second slots (18a) and (18b) formed in parallel to the channel portion (18) and at the same time as the channel portion inclined surfaces (18c) formed outwardly from the first and second slots (18a) and (18b); Boot band structure, characterized in that formed in the nose portion 20 to form a nose portion inclined surface (20a) and nose portion projection surface (20b) formed to correspond to the channel portion inclined surface (18c) of the channel portion (18). The method of claim 1, The first and second downward hooks 12a and 12b and the first and second upward hooks 14a and 14b are formed with a lower hook chamber 12d and an upper hook chamber 14d at one end thereof, respectively. A bent portion is formed at the other end thereof, and the bent portion is bent such that the remaining portion except for the portions directed toward the downward hook chamber 12d and the upward hook chamber 14d is blocked and downward hook chamber 12d with respect to the bent portion. And an uplink hook guide insert (12c) and an uplink hook insert (14c) are integrally protruded from the center of the end positioned at the boundary of the uplink hook chamber (14d) and the bent portion.