JPH0448937Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is used to prevent the movement of an article by tightening a belt between an article and a fixed structure, or to fix an article by tightening a belt wrapped around the article. This relates to belt fasteners used for

Conventional technology This type of belt tightener was developed in
The one shown in Publication No. 10054 is known. In this device, the main body and an operating lever are rotatably supported, a hook mounting bracket is rotatably supported on the operating lever, a belt hanging shaft is suspended on the operating lever, and the operating lever is operated. By rotating the main body and rotating the belt, the belt is wound and fixed around the rotating shaft of the main body and the operating lever.

Also, Special Publication No. 59-29393, Publication No. 58-52063
Publication No. 57-128537, Publication No. 128537, Utility Model Application No. 59-
Publication No. 78252, Publication No. 1982-69805, Publication No. 69805, Publication No. 69805
-69806 Publication etc. are known, but these are also the above-mentioned Utility Model Publication No. 55-10054.
Similar to the publication, a belt is wrapped around two shafts and tightened.

In these devices, the belt is wound around one shaft and wound around the other shaft, and further passed between the one shaft and the belt and pulled out onto the previous belt. When the tension of the previous belt is applied, the belt on the free end side is compressed and fixed between that belt and the one shaft.

Problems that the invention attempts to solve However, in these inventions, under static conditions of use where a constant tension is constantly applied to the belt, it is possible to support an extremely large tension and to secure the article. However, if the tension applied to the belt fluctuates, the belt will slip, albeit very slightly, and if this fluctuation is repeated, the belt will gradually loosen.

In particular, this type of belt fastener is often used to tighten and secure items mounted on vehicles or ships, but in such cases, belt fasteners are often used to tighten and secure items mounted on vehicles or ships. The belt tension constantly changes. Therefore, even if the slippage of the belt caused by a single tension change is small, as this is repeated thousands or tens of thousands of times, the slippage of the belt accumulates and has a serious effect on the fixing state of the article. This causes the belt to become loose, giving rise to

The present invention has been devised in view of the above circumstances, and provides a belt fastener that does not cause the belt to slip due to fluctuations in the tension applied to the belt, and does not cause the belt to loosen even after long-term use. The purpose is to

Means for Solving the Problems The present invention provides a belt tightener that includes at least a hook mounting bracket and an operating lever, and tightens and releases the belt by rotating the operating lever relative to the hook mounting bracket. A fixed bar is suspended between the bases of the operating lever, and a slit is formed that extends from the fixed position of the fixed bar in a direction away from the hook mounting bracket when the operating lever is rotated in the release direction with respect to the hook mounting bracket. A sliding bar parallel to the fixed bar is slidably suspended in the slit, and the end portion of the belt bypasses the sliding bar and is wound around the fixed bar to connect the fixed bar and the sliding bar. It is characterized in that it is drawn out between the sliding bar and a belt portion that bypasses the sliding bar.

The present invention will be explained below with reference to the drawings. In the drawings, 1 is a support member. This support member 1 is a substantially U-shaped member, and its bridge portion 2 includes
A belt insertion opening 3 for supporting a belt is formed in the support member 1 . Further, locking holes 5, 5 are bored in both side plates 4, 4 of the support member 1.

Reference numeral 6 denotes an operating lever, which includes a cover plate 7 and its cover plate 7.
It has a substantially U-shaped cross section with side plates 8, 8 hanging vertically on both sides of the board, and two parallel bars 10, 11 are placed between the bases 9, 9 of the side plates 8, 8. is suspended.

Further, the side plates 8, 8 are provided with protruding locking protrusions 13, 13 that lock into the locking holes 5, 5 of the support member 1.

Reference numeral 14 denotes a hook attachment fitting, and a hook 16 is rotatably supported at the tips of both side plates 15.

The support member 1, the operating lever 6, and the hook attachment fitting 14 are rotatably supported by trunnions 17, 17. The support member 1, the operating lever 6, and the hook mounting bracket 14 are
As shown in the figure, the support member 1 and the operating lever 6, and the operating lever 6 and the hook mounting bracket 14 may be supported by separate trunnions. It is also possible to do so.

In the present invention, one of the two bars 10 and 11 suspended between the bases 9 and 9 of the operating lever 6 is a fixed bar, and the other bar 11 is attached to and separated from the fixed bar 10. It is a sliding bar that can be moved. That is, the fixed bar 10 is fixed on both sides to the base parts 9, 9, and the sliding bar 11 moves toward and away from the fixed bar 10 along the slit 12 formed in the base parts 9, 9 of the operating lever 6. It is designed to be able to slide in any direction.

The slit 12 moves away from the hook mounting bracket 14 from the fixed position of the fixing bar 10 when the operating lever 12 is rotated relative to the hook mounting bracket 14 in the releasing direction, that is, counterclockwise in the figure. It is extending.

Although the bars 10 and 11 have a substantially square cross section in the drawings, they are not limited to this, and may have a circular cross section. However, if the cross section of the bars 10 and 11 is circular, the belt portion that is squeezed between the bars 10 and 11 will be compressed in a linear manner by both bars 10 and 11, which can easily cause pain. Therefore, as shown in the drawings, it is preferable that the opposing portions of both bars 10 and 11 be flat, and that the belt be compressed between the flat surfaces.

18 is a belt. A hook (not shown) is attached to one end of the belt 18, and the free end of the belt 18 is inserted through the belt insertion opening 3 of the support member 1, bypasses the sliding bar 11, and is inserted into the fixed position. It is wound around the bar 10 and passes between the fixed bar 10 and the sliding bar 11, and further the sliding bar 11
and the belt portion that bypasses the sliding bar 11, and the belt 1 from the belt insertion opening 3 again.
It is pulled out above 8.

Function Next, the function of the present invention will be explained. FIG. 5 shows the belt 18 in its released state before being tightened. The operating lever 6 is rotated to the left in the figure, and the bar 10,
11 is located below the trunnions 17, 17. In this state, the sliding bar 11 is sliding along the slit 12 to the right in FIG.
You can freely change the length of 8.

There, a hook (not shown) at the end of the belt 18 is attached.
Then, the hook 16 of the hook attachment fitting 14 is locked to the article and the fixed structure, and the free end of the belt 18 is pulled to adjust the length and tension is applied to the belt 18.

In this state, when the operating lever 6 is rotated to the right in the figure, the bars 10 and 11 move from below the trunnions 17 and 17 to the left and upward, so that the belt 1
8 is strongly tightened. Then, the locking protrusions 13, 13 of the operating lever 6 are locked in the locking holes 5, 5 of the support member 1, and the operating lever 6 is supported with respect to the support member 1. This state is shown in FIGS. 1 to 4.

In this state, the tensioned belt 18 bypasses the sliding bar 11, so the sliding bar 11 slides along the slit 12 in the direction approaching the fixed bar 10, and the fixed bar 10 The belt portion between and the sliding bar 11 is compressed. Furthermore, since the belt portion on the free end side is pinched between the sliding bar 11 and the belt portion that bypasses the sliding bar 11, the belt 18 does not slip, and even after long-term use, the belt 18 will not come loose.

In particular, even when the tension applied to the belt 18 fluctuates, the portion of the belt pressed between the fixed bar 10 and the sliding bar 11 does not slip, so that loosening of the belt 18 can be reliably prevented. It is.

Also, if you turn the operating lever 6 to the left again,
Returning to the state shown in FIG. 5 again, the belt 18 is unfastened, and the article can be unfastened by loosening the belt 18.

Effects of the invention Therefore, according to the invention, the structure is simple,
The belt 18 can be tightened with a simple operation. When the belt 18 is in a tightened state, the belt 18 will not loosen due to fluctuations in the tension applied to the belt 18, and a stable tightened state can be maintained for a long period of time. Therefore, even when used to secure articles mounted on a vehicle or ship, the fixed state is stable and does not loosen due to vibration or shaking.

Further, in the present invention, when the operating lever 6 is rotated in the tightening/releasing direction, the sliding bar 11 can move toward and away from the fixed bar 10 as shown in FIG. It can be tightened and the length of the belt can be easily adjusted.

Further, as shown in FIG. 1, when the belt 18 is tightened, the trunnions 17, 17
By configuring the belt to pass above the center of the belt, the tension applied to the belt 18 acts to rotate the operating lever 6 to the right in the figure, thereby biasing the operating lever 6 in the belt tightening direction. Therefore, the tightening of the belt 18 will not be released due to the operating lever 6 being inadvertently rotated in the releasing direction during use.

Embodiment Also, in the drawings, the hook 16 is directly attached to the hook mounting bracket 14, but the side plate 15
It is also possible to connect the hook 16 and the separate hook 16 with a belt or chain. In addition, the belt 18, whose one end is directly connected to the hook mounting bracket 14, is hung on a bar fixed to a separate hook 16 with respect to the hook mounting bracket 14, and then the belt 18 is hung on a bar fixed to the hook 16, which is separate from the hook mounting bracket 14. After hanging, its free end can also be attached to the fastener of the invention. In this case, two hooks are attached to the ring-shaped belt 18 with both ends connected to the fastener of the present invention, and the hooks are hooked onto the article and the fixed structure, and between the two hooks The belt 18 will be stretched twice.

[Brief explanation of the drawing]

The drawings show the belt tightening device of the present invention, in which FIG. 1 is a central vertical sectional view in the belt tightened state, FIG. 2 is a plan view thereof, and FIGS. - sectional view and - sectional view. FIG. 5 is a central vertical cross-sectional view of the belt in a state in which the belt is untightened. 6... Operating lever, 10... Fixed bar, 11...
...Sliding bar, 14...Hook mounting bracket, 18...
…belt.

Claims (1)

[Scope of utility model registration request] At least the hook mounting bracket 14 and the operating lever 6
In this belt tightener, the belt 18 is tightened and released by rotating the operating lever 6 with respect to the hook mounting bracket 14, and a fixed bar 10 is suspended between the bases 9, 9 of the operating lever 6. Then, when the operating lever 6 is rotated in the release direction with respect to the hook mounting bracket 14, a slit 12 is formed that extends from the fixed position of the fixing bar 10 in a direction away from the hook mounting bracket 14, and the fixing bar 10 is inserted into the slit 12. A sliding bar 11 parallel to the bar 10 is slidably suspended, and the end portion of the belt 18 bypasses the sliding bar 11, is wound around the fixed bar 10, and is connected to the fixed bar 10 and the sliding bar 11. Pass through the
The belt fastener is further characterized in that it is pulled out between the sliding bar 11 and a belt portion that bypasses the sliding bar 11.