阅读说明：本技术 带体调节系统 (Belt body adjusting system ) 是由 黄鹰君 陈翊辉 于 2018-10-16 设计创作，主要内容包括：一种带体调节系统,该带体调节系统具有：基部本体,该基部本体具有底壁、两个侧壁和延伸在该两个侧壁之间的带体固位杆,该底壁具有穿其而过的孔口,该孔口具有围绕内表面延伸的螺纹；以及螺丝盘,该螺丝盘具有中心凸出部和围绕该中心凸出部延伸的螺纹。该中心凸出部通过旋转该螺丝盘而穿过该基部本体中的孔口进行装配,从而使该螺丝盘中的螺纹与该孔口中的螺纹配合,使得能够通过转动该螺丝盘来调节该凸出部在该基部本体底壁上方的高度。在需要高程度的摩擦的情况下,凸出部可以通过孔口定位在最大高度处,而在需要低程度的摩擦的情况下,该凸出部可以定位在较低的位置。(A belt body adjustment system, the belt body adjustment system having: a base body having a bottom wall, two sidewalls, and a strap retaining bar extending between the two sidewalls, the bottom wall having an aperture therethrough with threads extending around an inner surface; and a screw disk having a central boss and a thread extending around the central boss. The central boss is fitted through the aperture in the base body by rotating the screw disk so that the threads in the screw disk mate with the threads in the aperture so that the height of the boss above the base body bottom wall can be adjusted by turning the screw disk. In case a high degree of friction is required, the protrusion may be positioned at a maximum height through the aperture, whereas in case a low degree of friction is required, the protrusion may be positioned at a lower position.)

1. A strap adjustment system, the strap adjustment system comprising:

a base body having a bottom wall, two side walls, and a strap retaining bar extending between the two side walls, the bottom wall having an aperture therethrough with threads extending around an inner surface thereof; and

a screw disk having a central boss and threads extending around the boss, the central boss adapted to be fitted through the aperture in the base body by rotating the screw disk so that the threads in the screw disk mate with the threads in the aperture so that the height of the boss above the base body bottom wall can be adjusted by turning the screw disk.

2. The strap adjustment system of claim 1, further comprising a cam cap pivotably connected to the two side walls, the cam cap having a top surface and a bottom surface, the bottom surface containing a friction generating element configured to grip a strap placed through the base body when the cam cap is lowered.

3. The band adjustment system of claim 2, wherein the cam cover is retained in a lowered position by a torsion spring.

4. The band adjustment system of claim 2, wherein the friction generating element is a tooth.

5. The belt adjustment system of claim 2, wherein the cam cover is connected to the side wall via a pivot rod that extends through apertures in the side wall and cam cover.

6. The strap adjustment system of claim 1, wherein the projection has a rounded top surface with circumferential ridges for rubbing the strap as it extends through the base body.

7. The strap adjustment system of claim 1, wherein the base body further comprises a male buckle portion having locking legs, and further comprises a female buckle portion, wherein the locking legs are adapted to snap into side openings of the female buckle portion.

1 technical field

The invention relates to a belt body adjusting system. In particular, the present invention relates to a strap adjustment system that can provide an adjustable degree of friction on the strap when the system is in an unlocked position depending on the use of the system.

Background

Disclosure of Invention

It is therefore an object of the present invention to create a strap adjustment system that can hold the strap in place prior to locking, but still allow adjustment. It is another object of the present invention to provide a method wherein the amount of friction on the belt can be adjusted based on the use of the device.

These and other objects are achieved by a belt adjustment system in which a member having an adjustable height is connected to a belt adjuster to increase friction under the belt to prevent the belt from becoming loose without being secured. This area body governing system includes: a base body having a bottom wall, two sidewalls, and a strap retaining bar extending between the two sidewalls, the bottom wall having an aperture therethrough with threads extending around an inner surface; and a screw disk having a central boss and a thread extending around the central boss. The central boss is fitted through the aperture in the base body by rotating the screw disk so that the threads in the screw disk mate with the threads in the aperture so that the height of the boss above the base body bottom wall can be adjusted by turning the screw disk. In case a high degree of friction is required, the protrusion may be positioned at a maximum height through the aperture, whereas in case a low degree of friction is required, the protrusion may be positioned at a lower position.

Preferably, the lugs are located directly below the tie retention bar, so as to reduce the space allotted for the sliding of the tie, the smaller this space, the more difficult it is for the tie to slide freely. By narrowing the passage between the lug and the rod by moving the lug closer to the rod, the surfaces of the lug and the rod come into contact with the band, creating additional friction that will slow down the sliding of the band.

The user can finely adjust the height of the convex part by rotating the disc, thereby controlling the sliding speed of the belt body. In a preferred embodiment, the projection has a rounded top surface with a ridge for rubbing against the strap as the strap extends through the base body.

In one embodiment, the strap adjustment system can include a cam cover pivotally connected to both side walls. The cam cap has a top surface and a bottom surface, the bottom surface containing friction generating elements configured to grip a strap placed through the base body when the cam cap is lowered. The cam cover may be held in the lowered position by a torsion spring, thereby eliminating the need to manually close the cam cover. Preferably, the friction generating elements are teeth. The cam cover may be connected to the side wall via a pivot rod that extends through apertures in the side wall and cam cover.

The adjustable friction system of the present invention is particularly useful in combination with the cam locking system described above. For example, a user of a backpack carrying a load, particularly a large outdoor backpack, may need to adjust the shoulder straps, for example by cam-locking the shoulder straps to a comfortable level. As the load gets heavier, the need for adjustment becomes even higher. However, the user always needs to repeat these two actions-releasing and tightening the belt system to reach a comfortable level. This is because conventional cam locks do not provide the fine tuning options described above. Once the cam is opened, the band slides very quickly, and the speed of sliding is so fast that the user has no opportunity to experience this comfort by closing the cam to stop the sliding of the band. The heavier the load, the faster the belt body slides. The present invention solves this problem by slowing the speed at which the belt can slide freely.

In another embodiment, the base body may be formed by a male buckle portion of a side release buckle having locking legs that may snap into side openings of a corresponding female buckle portion. The strap is attached to the male buckle portion by winding the strap around the rod. The bulge is used for preventing the belt body from sliding in the adjusting process.

Drawings

Other objects and features of the present invention will become apparent from the following detailed descriptions considered in conjunction with the accompanying drawings. It is to be understood, however, that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention.

In the drawings, wherein like reference numerals refer to like elements throughout the several views:

FIGS. 1A and 1B show cross-sectional views of a prior art cam lock device;

fig. 2 shows a top view of the strap adjusting device according to the invention;

FIG. 3 shows an exploded view of the device shown in FIG. 2;

FIG. 4 shows a cross-sectional view along line IV-IV of FIG. 2;

FIG. 5 shows a cross-sectional view of the device of FIG. 4 with the cam cover raised and the projection in a lowered position;

FIG. 6 shows a cross-sectional view of the device of FIG. 4 with the projection in a fully raised position;

fig. 7 illustrates an alternative embodiment of a strap adjustment system according to the present disclosure; and

fig. 8 illustrates another alternative embodiment of a strap adjustment system according to the present invention.

Detailed Description

Referring now in detail to the drawings, fig. 1A and 1B show a prior art cam lock system 1 having a base 2 and a cam cover 3 having teeth 4, the teeth 4 being clamped on a strip 20 fed through the base 2. However, as shown in fig. 2, once the cam cap 3 is raised, there is a large clearance above the tape body 20, and at this time the tape body 20 can slide freely with little friction.

A strap adjustment system 10 according to the present invention is shown in fig. 2-6. Here, the system 10 is composed of a base body 30, a cam cover 40, and a screw disk 50. The base body 30 has a bottom wall 31, two side walls 32, 33 and a strap retaining bar 34 disposed between the side walls 32, 33. An aperture 35 is provided in the bottom wall. The orifice 35 is equipped with threads 36 around the interior of the orifice 35. Apertures 37 are provided in the side walls 32, 33 for receiving rods 43 placed through apertures 42 on the cam cover 40 to attach the cam cover 40 to the base body 30. As shown in fig. 2, the torsion spring 44 biases the cam cover 40 in the lowered position. The cam cap 40 is equipped with teeth 41 on the bottom side to grip the strap 20 when the cam cap 40 is in the lowered position. The screw disc 50 has a central protrusion 51 with a rounded top surface equipped with ridges 52 or grooves. The projection 51 has threads 53 which surround the projection 51 at least at its lower part. These threads 53 mate with the threads 36 in the aperture 35 in the base body 30 to attach the screw disk 50 to the base body 30. Rotating the threaded disc 50 the required amount raises and lowers the projections 51 relative to the base body 30. The stop 54 prevents over-rotation of the screw disk 50 when it is mounted to the base body 30.

The strap adjustment system 10 is shown in use in fig. 5 and 6, where the strap 20 is placed through the base body 30 under the strap retention bar 34. In fig. 5, rotating the screw disk 50 brings the lugs 51 to a lower point, thereby providing only little additional friction to hold the tie body 20 in place, as can be seen by only a small deformation of the tie body 20 as it is pressed toward the rod 34. In fig. 6, rotating the screw disc 50 in a manner such that the lugs 51 rise to a higher level provides additional friction to the tie body 20, as can be seen by the greater deformation of the tie body 20 as it is pressed against the rod 34. The user can position the tab 51 at any desired height to optimally slide the tie body 20 within the base body 30.

Fig. 7 and 8 illustrate additional embodiments of a strap adjustment system according to the present invention. In fig. 7, the cam cap is not used and the strap is tensioned around the rods 71, 72 of the base body 70. The screw disk 50 extends through an aperture 74 equipped with threads (not shown). The screw disc 50 operates in the same manner as described above with respect to fig. 5 and 6.

In fig. 8, the base body is in the form of a male portion 80 that is connected to a female portion 90. The male portion 80 has a pair of locking legs 81, these locking legs 81 extending into the cavity of the female portion 90 and snapping into locking slots 92 of the female portion 90. The male buckle portion 80 has a strap retaining bar 84 against which the strap is pressed by the lug 51 of the screw disk 50, the lug 51 extending through an aperture 86 in the bottom wall 83 of the male buckle portion 80. The orifice 86 is equipped with internal threads (not shown). The height of the projection 51 may be adjusted in the same manner as described above with respect to fig. 5 and 6.

Thus, while only a few embodiments of the present invention have been shown and described, it will be obvious that various changes and modifications may be made therein without departing from the spirit and scope of the present invention.