JPS6137890Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a tightening tool used to tighten a belt between an article and a fixed structure to prevent the article from moving, or to tighten a belt wrapped around the article. A belt tightening method that allows the belt to be tightened or untightened with a simple operation, and that prevents the belt from becoming unintentionally loosened or untightened due to the tension of the belt after tightening. The object of the invention is to provide a device particularly suitable for securing loads on trucks and ships.

Various types of belt tighteners have been proposed in the past, but the most common one is one in which the main body and the operating lever are pivotally connected by a first shaft, and a second shaft is attached to the operating lever. , one end of the belt is inserted from below the first shaft, wound around the second shaft, and then pulled out from between the first shaft and the belt above the first belt. The length of the belt is adjusted by rotating the lever forward, and then by rotating the lever backward, the belt is wound around the first shaft and tightened. . This device has a simple structure and is easy to operate, and the belt can be tightened appropriately, making it extremely suitable for the above-mentioned purpose.

However, with this structure, a large force is always acting on the lever to try to rotate it in the opening direction, so to prevent this, another means of supporting the lever is required. Moreover, it is necessary to operate the support means after rotating the lever in the tightening direction. Furthermore, this support means must be structurally quite strong, resulting in a complicated structure. Moreover, in the case of a simple structure, the lever becomes difficult to open due to the support means.

The present invention was devised in view of the above circumstances, and it connects the hook mounting member, which is the main body, and the operating lever via a rotating member, and can easily tighten and release by simply rotating only the operating lever. This can be done with just one touch.

Therefore, the present invention has a hook mounting member having a hook attached to its front end, a rotating member rotatably attached to the rear end of the hook mounting member, and a lower end of the rotating member. a first shaft attached;
a second shaft attached to the upper end of the rotating member; an operating lever having its base pivoted to the other end of the rotating member so as to be rotatable within a small range; and the operating lever and the rotating member. a guiding means for gradually rotating the operating lever forward relative to the rotating member when the moving member is rotated rearward relative to the hook mounting member; and a guiding means for gradually rotating the operating lever forward relative to the rotating member; It consists of a locking means for locking the base,
The other end of the belt, which has another hook attached to one end, is inserted from the rear under the first shaft and goes around the second shaft, and then the first shaft and the belt are connected. By pulling the belt backward through the opening and rotating the operating lever backward, the rotating member is rotated backward with respect to the hook mounting member to wind the belt around the first shaft, and the guiding means After the operating lever is rotated forward relative to the rotating member, the operating lever is rotated backward relative to the rotating member to lock the locking means. be.

The present invention will be explained below with reference to the drawings. Figures 1 to 3 show a first embodiment of the present invention, in which 1 is a hook mounting member, which is composed of a pair of opposing side plates 2, 2; The front end portions are bent toward each other, and a hook 3 is pivotally attached to the front end. Also, this hook mounting member 1
At the rear end, a bridging piece 4 is provided between the side plates 2, 2, and the bridging piece 4 has a rear surface forming an inclined surface 5 whose upper end is inclined forward.

Reference numeral 6 denotes a rotating member, which has a substantially U-shaped cross section and is composed of a bottom plate 7 and side plates 8, 8 provided opposite to each other on both sides of the bottom plate 7, and has an upper end and a lower end. A first shaft 9 and a second shaft 10 are respectively attached between the side plates 8 and 8, and are pivotally connected to the hook attachment member 1 via the first shaft 9. . Moreover, the upper edge of the side plates 8, 8 of this rotating member 6 has a notch 11.
A step-like contact edge 12 is formed at the front end of the notch 11, and a protruding piece 13 that protrudes rearward is formed at the rear of the notch 11.

Reference numeral 14 denotes an operating lever, which has a substantially U-shaped cross section and is composed of a cover plate 15 and a pair of side plates 16, 16 provided oppositely on both side edges of the cover plate 15. No. 16 has a wide width at the base and tapers at the tip. The operating lever 14 is pivotally connected to the rotating member 6 by the second shaft 10 at the bases of its side plates 16, 16. The front end of the cover plate 15 of the operating lever 14 is fitted into the notch 11 of the rotating member 6, and the operating lever 14 is connected to the rotating member 6.
When the cover plate 15 is rotated forward, the front edge of the cover plate 15 comes into contact with the abutment edge 12 of the notch 11, and when the cover plate 15 is rotated backward, the back surface of the cover plate 15 comes into contact with the protruding piece 13. , the rotation range of the operating lever 14 relative to the rotation member 6 is limited to a small range. Further, a locking piece 17 is projected from the lower part of the front edge of the base of the operating lever 14.

When the operating lever 14 is rotated forward, the rotating member 6 is tilted forward about the first shaft 9, as shown in FIG. 3a.
In this state, the other end of the belt 18 with a hook (not shown) attached to one end is inserted from the rear under the first shaft 9, wound around the outside of the second shaft 10, and then wrapped around the first shaft 9. shaft 9 and belt 1
8 and pull it out above the belt 18. Then, the hook 3 and the hook attached to the belt 18 are respectively locked to an article or a fixed structure, and the length of the belt 18 is adjusted by pulling the free end of the belt 18.

Next, when the operating lever 14 is rotated rearward, the operating lever 14 first rotates rearward using the second shaft 10 as a rotation axis, but immediately the back surface of the cover plate 15 comes into contact with the protruding piece 13, and the operating lever 14 rotates. The member 6 is rotated rearward about the first shaft 9 as a rotation axis. As a result, the belt 18 is wound around the first shaft 9, and the belt 18 is tightened by an amount corresponding to the circumferential length of the shaft 9 around which it is wound.

When the operating lever 14 is further rotated, the operating lever 14 and the rotating member 6 continue to rotate together with the first shaft 9 as the rotating axis, and the locking piece 17 is attached to the upper end of the bridging piece 4. come into contact with This state is shown in Figure 3b.
is shown.

When the operating lever 14 is further rotated, since the rear surface 5 of the bridging piece 4 is inclined, the distance between the first shaft 9 and the locking piece 17 is expanded, as shown in FIG. 3c. The rotating member 6 is connected to the operating lever 14.
The operating lever 14 rotates faster than the rotating member 6.
It will rotate slightly forward. Next, when the locking piece 17 reaches the lower end of the bridging piece 4, the engaging piece 17 locks onto the bridging piece 4 as shown in FIG. 3d.

Therefore, by simply rotating the operating lever 14 rearward, the belt 18 can be tightened and the operating lever 14 can be locked to the hook attachment member, making the operation extremely simple. Further, in this embodiment, the angle α between the line A connecting the center of the second shaft and the tip of the locking piece 17 and the line B along the upper edge of the locking edge 17 is slightly less than a right angle. Since the locking piece 17 is set at a large angle, the rotating member 6 is slightly rotated forward in the process of locking the locking piece 17 to the bridging piece 4. Therefore, when the second shaft 10 is pulled forward by the tension applied to the belt 18, the locking piece 17 and the bridging piece 4 act to lock more deeply, and the locking piece 17 and the bridging piece 4 act to lock more deeply, and are prevented from being unsteady due to vibration or the like. It does not dissociate easily.

Next, when releasing this fastener, rotate the operating lever 14 forward, the operating lever 14 will rotate about the second shaft 10, and the locking piece 1
7 comes off from the bridging piece 4 as shown in Figure 3e,
The tension of the belt 18 causes the rotating member 6 to rotate forward and return to the state shown in FIG. 3a.

4 to 6 show a second embodiment of the present invention. The hook attachment member 1 is a member having a substantially U-shaped cross section, with side plates 2, 2 facing each other on both side edges of a bottom plate 19, and a hook 3 is pivotally attached to the front end thereof. At the rear end of the hook attachment member 1, a cam edge 20 is formed on the upper edge of the side plates 2, 2, and a locking edge 21 is further formed that bites downward from the rear end of the cam edge 20.

The rotating member 6 is a member having a substantially U-shaped cross section and consisting of a cover plate 22 and side plates 8, 8, and first and second shafts 9, 10 are attached between the side plates 8, 8. . Further, a shaft 23 is provided at the bottom of the operating lever 14 between the side plates 16, 16.
Both ends of the shaft 23 protrude outward from the side plates 16, 16. And this operating lever 14
When the cover plate 15 is rotated forward, the front edge of the cover plate 15 comes into contact with the upper end of the cover plate 22 of the rotating member 6, and when the cover plate 15 is rotated backward, the shaft 23 comes into contact with the lower part of the cover plate 22, thereby preventing operation. The rotation range of the lever 14 relative to the rotation member 6 is limited to a small range.

When the operating lever 14 is rotated forward, the rotating member 6 falls forward as shown in FIG. 6a and becomes open, allowing the belt 18 to be adjusted freely. Next, when the operating lever 14 is rotated rearward, the operating lever 14 first rotates about the second shaft 10, and the shaft 2
3 comes into contact with the cover plate 22 of the rotating member 6, and then the operating lever 14 and the rotating member 6 rotate rearward together with the first shaft 9 as the rotation axis, and both ends of the shaft 23 It abuts against the cam edge 20 of the hook attachment member 20. This situation is shown in Figure 6b. Then, as the movement continues, shaft 23
moves along the cam edge, the distance between the shaft 23 and the first shaft 9 is widened as shown in FIG. Become. Next, when the shaft 23 reaches the rear end of the cam edge 20, the operating lever 14 rotates rearward with respect to the rotating member 6, and the shaft 23 is locked to the locking edge 21 and operated as shown in FIG. The lever 14 locks onto the hook support member 1. At this time,
When the shaft 23 is locked to the locking edge 21, the angle β between the line C connecting the center of the shaft 23 and the center of the second shaft 10 and the line D extending the locking edge 21 is slightly less than a right angle. If the shape of the locking edge 21 is set so that the shaft 23 and the locking edge 21 have a large angle, the locking between the shaft 23 and the locking edge 21 will be maintained strongly by the tension of the belt 18, and the locking state will not occur inadvertently due to vibration etc. will never be released.

Next, when the operating lever 14 is rotated forward, the sixth
As shown in FIG. The moving member 6 rotates forward and returns to the state shown in FIG. 6a.

Next, what is shown in FIGS. 7 to 9 is a third embodiment of the present invention. The hook mounting member 1 has a substantially U-shaped cross section consisting of a bottom plate 19 and side plates 2, 2, and has a hook 3 pivotally attached to its front end.
Further, a shaft 24 is fixed at the lower rear end between the side plates 2, 2. The rotating member 6 has a pair of opposing side plates 8, 8, and first and second shafts 9, 10 are attached between the side plates 8, 8, and between the rear edges of the side plates. A bridging piece 25 is fixed. In addition, the operating lever 14 is connected to the lid plate 15 and the side plate 1.
It has a U-shaped cross section consisting of 6 and 16, and is pivotally connected to the rotating member 6 by a second shaft 10 at the upper part of its base. Further, approximately V-shaped notch edges 26, 27 are formed at this base, into which the bridging piece 25 is fitted, and when the operating lever 14 rotates, the notch edges 26, 27 are formed. is bridging piece 25
By coming into contact with the upper edge or front surface of the control lever 14, the rotation range of the operating lever 14 relative to the rotation member 6 is limited to a small range. Further, an arc-shaped fitting edge 28 that fits into the shaft 24 is formed at the lower front end of the base of the side plates 16, 16, and a guide edge 29 extending downward from the lower end of the fitting edge 28 is formed. .

In this embodiment, when the operating lever 14 is rotated forward, the rotating member 6 falls backward as shown in FIG. 9a, making it possible to freely adjust the length of the belt 18. When the operating lever 14 is rotated, the notch edge 26 comes into contact with the upper end of the bridging piece 25, causing the rotating member 6 to rotate rearward, causing the operating lever 14 to rotate.
and the rotating member 6 rotate together. Then, as shown in FIG. 9b, the lower edge of the guiding edge 29 comes into contact with the shaft 24, and the guiding edge 29 further slides along the shaft 24, and the operating lever 14 rotates as shown in FIG. 9c. When the shaft 24 rotates forward relative to the movable member 6 and reaches the upper end of the guide edge 29, the shaft 24 fits into the fitting edge 28, and the operating lever 14 locks into place as shown in FIG. 9d. It is locked to the mounting member 6. In this example, the mating edge 2
Since the lower end of the fitting edge 8 extends forward from the line E connecting the second shaft 10 and the center of curvature of the fitting edge 28, the locked state will not be released due to vibration or the like. In this embodiment, a belt 18 is also provided between the rear end of the bottom plate 19 of the hook attachment member 1 and the lower edge of the bridging piece 25 of the rotating member 6, as shown in 9d.
belt 18 by allowing it to be clamped.
This also has the effect of preventing the material from becoming loose inadvertently.

Since the present invention has the above-described configuration, the second shaft 10 around which the belt 18 is wound rotates from the front of the first shaft 9 upwards or backwards, thereby rotating the belt 18. By wrapping around the first shaft 9, the belt 18 is appropriately tightened and can secure the article to a fixed structure. Furthermore, this can be accomplished with a single operation of rotating the operating lever 14 backwards, and no special operation is required to lock the operating lever 14. Moreover, when releasing the tightening of the belt 18, it is sufficient to simply rotate the operating lever 14 slightly forward. Also, at this time, operation lever 1
4 rotates about the second shaft 10 as a rotation axis,
Since almost no force acts on the operating lever 14 to prevent it from rotating, it can be released with an extremely small force.

In each of the embodiments described above, the first shaft 9
The hook mounting member 1 and the rotating member 6 are pivotally connected by the second shaft 10, and the rotating member 6 and the operating lever 14 are pivotally connected by the second shaft 10. There is no need for the shafts 9 and 10 to match. For example, if the center of rotation between the hook attachment member 1 and the rotation member 6 is set at an intermediate position between the first shaft 9 and the second shaft 10, when the operating lever 14 is rotated backward, the first This causes the shaft 9 to move forward, making it possible to tighten the belt 18 more strongly.

In the above description of the present invention, in order to facilitate understanding, the left side of the figure in the tightened state is referred to as the front, and the right side is referred to as the rear, and the vertical relationship is also made to correspond to the top and bottom in this state. Therefore, in explaining the operating process, please note that the front-back, top-bottom relationship may not match the corresponding drawing.
In addition, regarding the rotating member, since the side where the first shaft is located is set at the bottom, in the third embodiment, the rotating range of the rotating member is large, so that the vertical and front-to-back relationships are the same even in the tightened state. hard.

[Brief explanation of the drawing]

1 to 3 show the first embodiment of the present invention, in which FIG. 1 is a front view, FIG. 2 is a plan view, and FIG. 3 is a central longitudinal section in the plan view showing the process of operation. It is a front view. 4 to 6 show a second embodiment of the present invention, in which FIG. 4 is a front view, FIG. 5 is a plan view, and FIG. 6 is a central longitudinal section in the plan view showing the process of operation. It is a front view. 7 to 9 show a third embodiment of the present invention, in which FIG. 7 is a front view, FIG. 8 is a plan view, and FIG. 9 is a central longitudinal section in the plan view showing the process of operation. It is a front view. DESCRIPTION OF SYMBOLS 1... Hook mounting member, 2... Side plate, 3... Hook, 4... Bridge piece, 6... Rotating member, 7... Bottom plate, 8... Side plate, 9... First shaft, 10 …
... Second shaft, 11 ... Notch, 13 ... Projection piece, 14 ... Operation lever, 15 ... Lid plate, 16
... Side plate, 17 ... Locking piece, 18 ... Belt, 1
9... Bottom plate of hook mounting member, 20... Cam edge,
21... Locking edge, 22... Lid plate of rotating member, 23
... Shaft, 24 ... Shaft, 25 ... Bridge piece, 26, 27 ... Notch edge, 28 ... Fitting edge,
29...Inductive edge.

Claims (1)

[Claims for Utility Model Registration] 1. A hook mounting member 1 having a hook 3 attached to its front end, a rotating member 6 rotatably pivotally attached to the rear end of the hook mounting member 1, and the rotating member 6. A first shaft 9 attached to the lower end of the moving member 6
a second shaft 10 attached to the upper end of the rotating member 6; and an operating lever 14 whose base is pivoted to the upper end of the rotating member 6 so as to be able to rotate within a small range. , a guide means for gradually rotating the operating lever 14 forward relative to the rotating member 6 when the operating lever 14 and the rotating member 6 are rotated rearward relative to the hook mounting member 1; and the hook mounting member. It consists of a locking means for locking the base of the operating lever 14 at the rear end of the member 1, and the locking and release of the locking means is performed by rotating the operating lever 14 in a small range with respect to the rotating member 6. The other end of the belt 18 with another hook attached to one end is inserted from the rear under the first shaft 9, goes around the second shaft 10, and then The first shaft 9 is passed between the first shaft 9 and the belt 18, and is pulled out rearward and the operating lever 14 is rotated rearward to rotate the rotary member 6 rearward with respect to the hook attachment member 1. At the same time, the guiding means rotates the operating lever 14 forward with respect to the rotating member 6, and then the operating lever 14 is rotated backward with respect to the rotating member 6. A belt fastener characterized in that the locking means is configured to lock. 2. Utility model registration claim 1, characterized in that during the locking process of the locking means, the rotating member 6 is configured to rotate slightly forward with respect to the hook attachment member 1. Belt fastener as described. 3. The belt fastener according to claim 1, wherein the rotating member 6 is pivotally connected to the hook attachment member 1 by a first shaft 9. 4. The belt according to claim 1, wherein the rotating member 6 is pivotally attached to the hook attachment member 1 at an intermediate position between the first shaft 9 and the second shaft 10. Fasteners. 5 The rotating member 6 has a pair of side plates 8, 8 facing each other, and a notch 11 is formed at the upper edge of the side plates 8, 8, and a protruding piece 13 is formed that protrudes behind the notch 11. Then, when the tip of the cover plate 15 of the operating lever 14, which has a substantially U-shaped cross section, is fitted into the notch 11, and the operating lever 14 is rotated forward, its front edge comes into contact with the front of the notch 11. Rim 12
When it comes into contact with and rotates backward, the operation lever 1
Utility model registration claim 1, characterized in that the rotation range of the operation lever 14 relative to the rotation member 6 is limited to the small range by the back surface of the operating lever 14 coming into contact with the protruding piece 13. Belt fastener as described in section. 6. The rotating member 6 has a cover plate 22 and a pair of side plates 8, 8 formed opposite to each other on both side edges of the cover plate 22, and has a substantially U-shaped cross section at the base of the operation lever 14,
A shaft 23 is attached between the side plates 16, 16, and when the tip of the cover plate 15 of the operation lever 14 and the shaft 23 come into contact with the upper end and lower part of the cover plate 22 of the rotation member 6, the operation lever 14 can be rotated. The belt fastener according to claim 1, wherein the range of rotation of the movable member 6 is limited to the small range. 7. A bridging piece that forms approximately V-shaped notch edges 26, 27 on the side plates 16, 16 at the base of the operation lever 14, which has a generally U-shaped cross section, and connects the side plates 8, 8 of the rotating member 6. 25 with its notched edges 26, 27
The notch edges 26 and 27 abut the front and upper edges of the bridging piece 25, respectively, thereby limiting the rotation range of the operating lever 14 relative to the rotation member 6 to the small range. A belt fastener according to claim 1 of the utility model registration claim characterized by: 8. A bridging piece 4 is provided between the rear end edges of both side plates 2, 2 of the hook mounting member 1, and a locking piece 1 is provided at the lower part of the base of the side plates 16, 16 of the operation lever 14, which has a substantially U-shaped cross section.
7, and when the operating lever 14 is rotated backward, the locking piece 17 slides along the rear surface of the bridging piece 4, thereby rotating the operating lever 14 forward with respect to the rotating member 6. This utility model is characterized in that the operating lever 14 is rotated rearward with respect to the rotating member 6, and the locking piece 17 is locked to the lower edge of the bridging piece 4. A belt fastener according to claim 1. 9 Utility model registration claim No. 8 characterized in that the upper part of the rear surface of the bridging piece 4 is inclined forward.
Belt fastener as described in section. 10 The angle formed by the line connecting the center of rotation of the operating lever 14 with respect to the rotating member 6 and the upper corner of the tip of the locking piece 17 and the upper edge of the locking piece 17 is slightly larger than a right angle. A belt fastener according to claim 8 of the utility model registration claim, characterized in that: 11 A cam edge 20 is formed on the upper end edges of the rear end portions of the side plates 2, 2 of the hook mounting member 1, and a locking edge 21 is formed from the rear end of the cam edge 20 to the bottom of the cam edge 20. A shaft 23 is provided at the base of both side plates 16, 16 of the operating lever 14, and when the operating lever 14 is rotated backward, the shaft 23 slides along the cam edge 20, so that the operating lever 14 is rotated. When the shaft 23 rotates forward with respect to the movable member 6 and the rear operation lever 14 rotates backward with respect to the rotary member 6, the shaft 23 is engaged with the locking edge 21. A belt fastener according to claim 1 of the utility model registration claim, characterized in that: 12 A line connecting the center of the shaft 23 in a state where the shaft 23 is locked to the locking edge 21 and the center of rotation of the operating lever 14 with respect to the rotation member 6;
The belt fastener according to claim 11, wherein the angle formed by the locking edge 21 is slightly larger than a right angle. 13 A shaft 24 is attached between the side plates 2, 2 at the rear lower part of the hook mounting member 1, and a fitting edge 28 into which the shaft 24 fits is formed at the lower front end of the side plates 16, 16 at the base of the operating lever 14. ,
A guiding edge 2 extending downward from the lower end of the fitting edge 28
9 and when the operating lever 14 is rotated rearward, the guiding edge 29 slides on the shaft 24, so that the operating lever 14 is moved toward the rotating member 6.
, and then the fitting edge 2
8. The belt fastener according to claim 1, wherein the shaft 24 is fitted into and locked with the shaft 24. 14 The fitting edge 28 is substantially arc-shaped, and the arc extends forward beyond the extension of a line connecting the center of rotation of the operation lever 14 with respect to the rotation member 6 and the center of curvature of the arc. 13. The belt fastener according to claim 13 of the utility model registration claim. 15 Registration of a utility model characterized in that the belt 18 is held between the rotating member 6 and the hook attachment member 1 when the operating lever 14 is rotated backward and the locking means is locked. A belt fastener according to claim 1.