JP4610756B2 - Belt fastener - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a belt fastener for fixing an article, and more particularly, to a belt fastener for fastening an article by fastening a belt between the article and a transporter with a belt.
[0002]
[Prior art]
The article is often fastened to the structure or the like with a belt to prevent the article from moving, or the articles are often fixed by wrapping the belt around each other. It is usual to use what is called. For example, when a vehicle is mounted on a ship and transported, the belt is used to tighten the belt when the vehicle is fixed to the floor of the ship with a belt.
[0003]
As a conventional belt fastener, for example, one described in Japanese Utility Model Publication No. 55-10054 is known. This is because the hook mounting bracket and the operation lever part are rotatably supported on the belt fastener body, the shaft for hanging the belt is suspended on the operation lever, and the belt is moved by rotating the operation lever. The belt is tightened and fixed by being wound around the rotation shaft of the main body and the operation lever. However, when an article mounted on a ship or a vehicle is tightened, the tightening tension applied to the belt constantly fluctuates due to vibration or shaking of the ship or the vehicle, so that there is a problem that the belt gradually becomes loose.
[0004]
Therefore, those described in Japanese Utility Model Publication No. 5-1684 and Japanese Utility Model Publication No. 5-17476 are known. In order to prevent the looseness from occurring even when used in an environment where vibration or the like acts, an uneven portion is formed on the contact surface with the belt for the purpose of firmly fixing the belt. A fixed bar and a sliding bar are provided, and a belt pressing member is further provided.
[0005]
[Problems to be solved by the invention]
However, in the belt fastener having the loosening prevention mechanism described in the above Japanese Utility Model Publication No. 5-1684 and the like, a processing bar on the main body increases because a sliding bar is slidably provided on the main body. Since the structure becomes complicated, there is a problem that the manufacturing cost must be increased. For the purpose of firmly fixing the belt, if the belt is firmly sandwiched between the fixing bar and the sliding bar, the bars must be made thicker, and the main body is enlarged. is doing.
[0006]
The present invention has been made in view of the above circumstances, and an object thereof is to provide an inexpensive belt fastener that can securely fix a belt even with a simple configuration, and that can be downsized. .
[0007]
[Means for Solving the Problems]
The belt fastener according to claim 1, which solves the above-mentioned problem, is a belt fastener in which an operation lever around which the belt is wound and a hook mounting member connected to the hook are pivotally supported with respect to each other. The operating lever includes a grip portion on a distal end side, a first bridging portion around which a belt is wound, and a second bridging portion that guides the belt wound around the first bridging portion in an overlapping manner. When the belt is tilted from the hook side to the non-hook side, the belt wound around the first bridging portion is guided by the second bridging portion and protrudes to the hook side so that the first bridging portion and the shaft A second bridging portion is arranged, and the slide member is loosely fitted to one bridging portion of the first bridging portion and the second bridging portion so as to be movable toward the other bridging portion. By the guided belt, the slide member and the other bridging portion So as to sandwich the wound belt serial first bridge portion, the limited amount of movement of the slide member, characterized in that the distance between the slide member and the other of the bridge portion and above a certain width .
[0008]
According to this configuration, the first bridging portion and the second bridging portion are integrated with each other by bending the base of the operation lever, and the sliding member that is a movable part is loosely fitted to one bridging portion. A belt fastener is formed.
[0010]
Further, the amount of movement is determined by the size of the slide member loosely fitted to one bridging portion in the sliding direction. That is, the distance from the other bridging portion can be made appropriate simply by changing the size of the slide member in accordance with the thickness of the belt.
[0011]
According to a second aspect of the present invention , in the belt fastener according to the first aspect, the first bridging portion and the second bridging portion are formed by a connecting plate that connects a pair of base portions provided with shaft support portions, and the slide member. Is formed of a plate material that moves along the connecting plate and is bent at both ends.
[0012]
According to this configuration, except for the hook mounting member, basically, it can be formed from only two plates of the main body and the slide member, and a belt fastener can be realized with a very simple structure. .
[0013]
A belt fastener according to a third aspect of the present invention is the belt fastener according to the first or second aspect , wherein one end of the bent end portion of the slide member formed from a plate material having both ends bent is the first bridging portion or the second bridging portion. The amount of movement of the slide member is limited by abutting with any one of the portions, and the distance between the other end portion and the other bridging portion is a certain width or more.
[0014]
According to this configuration, a structure for limiting the pressing force acting on the belt between the slide member and the other bridging portion is basically realized very simply by bending a single plate material. be able to.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an outline of a belt fastener 1 according to the present invention, and FIG. 2 is a top view thereof. The belt fastener 1 includes, as a basic configuration, an operation lever 2 around which a belt is wound, a hook mounting member 7 that is pivotally supported by the operation lever 2 and connected to a hook 10, and an operation lever. 2 and a slide member 8 that is loosely fitted to the belt 2 and sandwiches the belt 9. The belt fastener 1 fixes the belt 9 by tightening the operation lever 2 from the hook 10 side to the non-hook side. Hereinafter, the structure of each component will be described with reference to FIGS. 1 and 2.
[0016]
First, the control lever 2 is connected to the grip portion 3 at the tip, the two bridging portions (4, 5) around which the belt 9 is wound, and the pair connected to the grip portion 3 and the two bridging portions (4, 5). The side plate-like base portion 6 is integrally formed so that the cross section has a substantially bowl shape.
[0017]
The grip portion 3 is constituted by a tip portion of the operating lever 2 in which the side plate height of the hook-like portion is lowered like a wedge, and a rubber film is provided so as to cover the surface of the tip portion. The grip portion 3 is gripped from the rubber film and the operation lever 2 is rotated. This rubber film is not necessarily an essential component, and may be other than rubber.
[0018]
A pair of base portions 6 are integrally connected to the grip portion 3 so as to form a side plate of the hook-shaped portion. The base portion 6 includes a shaft support portion 11 for supporting the hook attachment member 7 and a locking portion 12 for restricting the rotation of the hook attachment member 7, and the two bridging portions (4, 5) are provided. Suspended.
[0019]
The shaft support portion 11 is formed with holes formed on the rotation shaft of the operation lever 2 on both surfaces of the pair of base portions 6. A rivet-shaped shaft member 13 that pivotally supports the hook mounting member 7 is inserted into the holes on both sides.
[0020]
The locking portion 12 is a protruding portion that is formed in a circular shape so as to protrude toward the outer side of the bowl-shaped portion on both surfaces of the base portion 6, and is located on the bridging portion side with respect to the shaft support portion 11. Yes. When the hook mounting member 7 rotates with respect to the operation lever 2, the hook mounting member 7 comes into contact with the hook mounting member 7 so as to rub, and a certain rotational force is applied between the operation lever 2 and the hook mounting member 7. Otherwise, the surface of the locking portion 12 cannot be rubbed so that the hook attachment member 7 is locked at the tightening position and the release position of the belt 9.
[0021]
The two cross-linking parts cross-linked to the base part 6 are composed of a first cross-linking part 4 and a second cross-linking part 5, and are formed so as to be arranged in the order of the grip part 3, the first cross-linking part 4, and the second cross-linking part 5. , Both are formed as a connecting plate for connecting the base 6. That is, in other words, two slits are provided on the bottom surface of the bowl-shaped portion, and the portion located between the slits is the first bridging portion 4, which is opposite to the grip portion 3 with respect to the first bridging portion 4. On the side, the portion located across the slit is the second bridging portion. The belt 9 is wound around the first bridging portion 4 in a single layer, and the belt 9 wound around the first bridging portion 4 is overlapped and further guided to the second bridging portion 5. The positional relationship between the two bridging portions and the shaft support portion 11 is such that when the belt 9 wound around the two bridging portions is stretched so as to be substantially along the bowl-shaped inner bottom portion of the operation lever 2, the belt 9 It is comprised so that it may be located in the bridge | bridging part side with respect to the axial support part 11. As shown in FIG. This is because the fastening tension acting on the belt 9 can be maintained in a self-holding manner, as will be described later in connection with the method of using the belt fastener 1.
[0022]
The above is the configuration of the operation lever 2, which can basically be formed by providing slits at two locations on a plate material having a predetermined outer shape and bending it into a bowl shape. One element of the structure according to the present invention can be realized very simply.
[0023]
Next, the structure of the hook attachment member 7 will be described. The hook mounting member 7 has a substantially U shape that can be formed by bending a round bar-like member, and the rod circumferential portion is crushed on a flat plate at both ends of the U-shaped bar member. And has a flat portion. Both flat portions have holes for allowing the shaft member 13 to pass therethrough, and the shaft and the shaft support portion 11 provided on the operation lever 2 are connected through the shaft member 13. The hook mounting member 7 and the operation lever 2 are supported so as to be rotatable relative to each other. Therefore, the hook attachment member 7 can also be formed simply by bending one rod member, and can be manufactured very easily.
[0024]
A hook 10 is connected to the hook attachment member 7 via a belt 14. The hook 10 may be of any structure as long as it can be hooked to a predetermined portion on the fixing side when fixing the article and can apply tension to the belt 9, and is not necessarily in the shape of a fishhook as in the present embodiment. It is not necessary to have the saddle type. Moreover, it may not necessarily be connected via the belt 14, but may have a structure to which the hook 10 is directly attached. For the hook mounting member 7, for example, two flat bar members are bent so that the hook mounting member 7 can be easily connected directly to the hook 10, one end of which is pivotally supported by the operation lever 2, and the other end is hooked. The structure which pinches | pinches and stops 10 may be sufficient.
[0025]
Finally, the structure of the slide member 8 will be described. The slide member 8 is composed of a flat plate with both ends bent, and the bent both ends are each bent twice at approximately 90 °, and the slide member 8 as a whole has a bowl-shaped cross section having an inward edge. It has a shape with The slide member 8 surrounds the second bridging portion 5 and is loosely fitted so that the inner bottom surface of the bowl-shaped portion covers the surface of the second bridging portion 5 opposite to the shaft support portion 11. 4 has a structure that can be moved toward 4. And at least at both ends of the slide member 8, the surface in contact with the belt 9 to be wound has a suitable friction coefficient with the belt 9 so as to be difficult to slip, such as knurling or shot blasting. It is desirable to apply anti-slip processing. Further, it is desirable that each bent portion at both ends is processed to have a curvature. Thereby, it is possible to prevent local stress concentration from occurring on the belt 9 at the portion in contact with each bent portion.
[0026]
Here, the structure of the slide member 8 will be described in more detail with reference to FIG. FIG. 5 is a cross-sectional view of the belt fastener 1 showing the periphery of the slide member 8 in an enlarged manner, and shows a state in which the slide member 8 is at a position farthest from the first bridging portion 4. At this time, ε1 represents the distance between the second bridging portion 5 and one end of the slide member 8 bent to the anti-grip side, and ε2 represents the distance between the bent other end and the first bridging portion 4. Yes. In the present embodiment, the length between the bent end portions of the slide member 8 and the slit formed between the first bridging portion 4 and the second bridging portion 5 so that the relationship of ε2> ε1 is satisfied. The width is set. For this reason, one end of the slide member 8 on the non-grip side comes into contact with the second bridging portion 5, so that the movement amount of the slide member 8 is limited, and the grip side end portion of the slide member 8 and the first bridging portion 4 An interval of a certain width or more is maintained between the two. In this embodiment, the slide member 8 has a shape having a hook-like cross section with an inward edge, but the inward edge is not necessarily formed at both ends. For example, it may be formed only at the end portion on the side opposite to the grip.
[0027]
The belt fastener 1 according to the present embodiment is configured as described above. Essentially, both the operation lever 2 and the slide member 8 can be formed from a single plate, and the hook mounting member. 7 can also be formed from one bar member, and the structure of the belt fastener 1 can be realized very easily.
[0028]
Next, a method of using the belt fastener 1 according to the present invention will be described with reference to FIGS. FIG. 3 shows the belt fastener 1 in a state before the belt 9 is tightened and when the tightening is released, and FIG. 4 shows a cross-section of the belt fastener 1 in a state of use after the belt 9 is tightened. It is shown.
[0029]
First, the case where the belt 9 is fastened will be described. In FIG. 3, the belt fastener 1 in a state before tightening is such that the positional relationship between the operation lever 2 and the hook mounting member 7 is such that the hook mounting member 7 is clockwise from the locking portion 12 around the shaft member 13. It is in the rotated position. In this state, although not shown, the other end of the belt 9 having a hook attached to one end is wound around the first bridging portion 4, and the first bridging portion 4 is passed through the inside of the hook-shaped portion of the operating lever 2. The slits between the second bridging portions 5 are passed through, and further guided so as to pass between the slide member 8 loosely fitted to the second bridging portions 5 and the belt 9. At this time, a hook (not shown) provided at one end of the belt 9 is locked to a predetermined portion on the fixing side when the article is fixed. As with the hook 10 provided at one end of the belt 9, the hook 10 is locked at a predetermined position and the belt 9 is slid so as to pull the other end of the belt 9, so that the article is almost fixed. Adjust the length of the belt 9 so that it is possible and lightly tensioned. From this state, the operation lever 2 is rotated clockwise about the shaft member 13 as shown by the arrow in the figure. By this rotation operation, the belt 9 is wound around the slide member 8 while being overlapped. At this time, the hook attachment member 7 passes while contacting the surface of the locking portion 12 so as to rub. Further, as the operation lever 2 rotates and the belt 9 is wound around the slide member 8, the slide member 8 approaches the first bridging portion 4.
[0030]
FIG. 4 is a cross-sectional view showing a state in which the rotation operation is completed and the tightening of the belt 9 is completed. The arrows shown in this figure are directions of tension acting on the belt 9 and the hook 10. Due to the tension applied to the belt 9, the end of the slide member 8 that is bent toward the non-grip side is pressed, and the slide member 8 moves toward the first bridging portion 4. Then, the belt 9 is sandwiched between the grip side end portion of the slide member 8 and the first bridging portion 4. Therefore, the tension acting on the belt 9 in a self-contained manner is maintained, and the belt 9 can maintain the tightening force without being loosened.
[0031]
The end portion of the slide member 8 sandwiching the belt 9 presses the belt 9 with a surface. Further, as described above, the bent portion has a curvature. Stress concentration can be prevented. And the space | interval of the slide member 8 and the 1st bridge | crosslinking part 4 is maintained more than fixed width, as demonstrated using FIG. For this reason, it is possible to prevent the pressing force applied to the belt 9 from being applied more than the level necessary for tightening the belt 9. These can prevent the belt 9 from being locally damaged. Further, regarding the value of ε2−ε1 which is the distance between the grip side end portion of the slide member 8 and the first bridging portion 4 when the belt 9 is tightened, in order to fix the condition such as the thickness of the belt 9 and the article. The length between both end portions of the slide member 8 and the slit width located between the two bridging portions can be set and adjusted so as to have an appropriate value according to the use conditions such as necessary tension.
[0032]
In FIG. 4, the direction of the moment acting on the operation lever 2 by the belt 9 is the clockwise direction with respect to the shaft member 13. As a result, a moment is applied in the direction in which the grip portion 3 is pressed against the belt 9, and the movement of the operation lever 2 in the rotational direction is restricted. Thus, the tightening tension is maintained in a self-holding manner.
[0033]
Next, the case where the belt 9 in the tightened state is released will be described. This is an operation state opposite to the above-described tightening case. In the belt fastener 1 in the tightened state as shown in FIG. 4, in order to release the tightening, the operation lever 2 is rotated counterclockwise with respect to the shaft member 13 with the grip portion 3. As a result, the pressing force by the belt 9 acting on the non-grip side end portion of the slide member 8 is released, and the pressing force holding the belt 9 between the slide member 8 and the first bridging portion 4 is also released. Is done. Then, the control lever 2 is rotated counterclockwise, the winding of the belt 9 around the slide member 8 is released, the tightening of the belt 9 is released, and the tension is released. The belt fastener 1 from which the belt 9 has been unfastened is normally maintained in a posture in which the hook attachment member 7 has passed through the engaging portion 12 as shown in FIG.
[0034]
The belt fastener 1 according to the present embodiment example can be used as described above to give a tightening force to the belt that fixes the article.
[0035]
The embodiment described above has the following effects.
(1) A conventional belt fastener is provided with a complex loosening prevention mechanism capable of firmly fixing a belt in order to prevent loosening when used in an environment in which vibrations act. there were. Therefore, an increase in manufacturing cost is unavoidable due to an increase in the number of parts and processing processes. However, in the belt fastener according to the present embodiment example, compared with the conventional belt fastener, the slide member is loosely fitted to the bridge portion, and the belt fastener does not loosen the belt. Fixing is possible. That is, a high-performance and inexpensive belt fastener can be provided.
[0036]
(2) Further, in the belt fastener according to this embodiment, the belt tightening force can be made appropriate depending on the size and moving amount of the slide member. In other words, even if the thickness of the belt changes, it is possible to cope with it simply by changing the size of the slide member.
[0037]
(3) In the belt fastener according to this embodiment, each of the main body and the slide member can be basically formed from a single plate material, and the belt fastener can be realized with an extremely simple structure. can do.
[0038]
In addition, embodiment is not limited to the above, For example, you may implement as changed as follows.
(1) The shape of the operating lever does not necessarily have to be such that the height of the side plate of the hook-shaped portion decreases in a wedge shape toward the grip portion as long as it is difficult to hold, and the inward edge It may have a bowl-shaped cross section with And if the structure which concerns on this embodiment example is realizable, as a material of an operation lever, a slide member, and a hook attachment member, it does not necessarily need to be a metal, and it is hard to damage to the article to lighten or fix. In order to improve, for example, resin may be used.
[0039]
(2) About the connection structure of a base part and a bridge | crosslinking part, it does not necessarily need to be formed by a bending process from one board | plate material like this embodiment example, For example, by the structure joined by welding etc. There may be.
[0040]
(3) Further, the loose fitting method of the bridging portion and the slide member does not necessarily have to be fitted in the bending portion of the slide member. For example, a long hole is provided in the bridging portion, and a rivet shape is provided in the long hole. Such a member may be used so that the slide member is movably supported.
[0041]
(4) Further, with respect to the shape of the end of the bridging portion that holds the belt facing the end of the slide member, in order to increase the binding force by increasing the contact area for holding the belt, for example, 180 ° It may be one that has been bent.
[0042]
(5) The bridging portion into which the slide member is loosely fitted may be the first bridging portion, and the same actions and effects as in the present embodiment can be realized. However, when the belt is pulled in order to adjust the belt length, the belt may be clamped by the slide member, and workability may be reduced. Therefore, the slide member is preferably loosely fitted to the second bridging portion.
[0043]
【The invention's effect】
According to the first aspect of the present invention, the article can be securely fixed without causing the belt to loosen, and the structure can be simplified as compared with the conventional belt fastener. That is, a high-performance and small-sized belt fastener can be provided.
[0044]
According to the second and third aspects of the invention, except for the hook mounting member, basically, it can be formed from only two plate materials, and it has an extremely simple structure and is reliable without causing the belt to loosen. It is possible to realize a belt fastener capable of fixing an article. Therefore, there is an effect that a small and very inexpensive belt fastener can be obtained.
[Brief description of the drawings]
FIG. 1 is a front view schematically showing a belt fastener according to the present invention.
FIG. 2 is a top view schematically showing a belt fastener according to the present invention.
FIG. 3 is a schematic view showing a case where the belt fastener according to the present invention is in a state before the belt is tightened and when the belt is released.
FIG. 4 is a schematic cross-sectional view showing the belt fastener according to the present invention when the belt is tightened and in use.
FIG. 5 is a schematic cross-sectional view of a belt fastener showing an enlarged periphery of a slide member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Belt fastener 2 Operation lever 3 Grip part 4 1st bridge | crosslinking part 5 2nd bridge | crosslinking part 6 Base 7 Hook attachment member 8 Slide member 9 Belt 10 Hook 11 Axial support part

Claims (3)

A belt fastener that pivotally supports an operation lever around which a belt is wound and a hook mounting member connected to a hook so as to be rotatable with respect to each other,
The operating lever includes a grip portion on a distal end side, a first bridging portion around which a belt is wound, and a second bridging portion that guides the belt wound around the first bridging portion in an overlapping manner. When the belt is tilted from the hook side to the non-hook side, the belt wound around the first bridging portion is guided by the second bridging portion and protrudes to the hook side so that the first bridging portion and the shaft A second bridging portion is arranged,
A slide member is slidably fitted to one of the first bridging portion and the second bridging portion so as to be movable toward the other bridging portion, and the slide member and the other bridging portion are guided by a belt guided by the second bridging portion. the wound belt to said first bridge portion between the bridge portion of so as to sandwich,
A belt fastener , wherein a movement amount of the slide member is limited, and a distance between the slide member and the other bridging portion is set to a certain width or more .   The first bridging portion and the second bridging portion are formed of a connecting plate that connects a pair of base portions provided with pivot support portions, and the slide member moves along the connecting plate and is bent at both ends. The belt fastener according to claim 1, wherein the belt fastener is formed of a plate material. One end of the bent end portion of the slide member formed from a plate material having both ends bent comes into contact with either the first bridging portion or the second bridging portion, so that the moving amount of the slide member is increased. The belt fastener according to claim 1 or 2 , wherein the belt fastener is limited, and a distance between the other end portion and the other bridging portion is equal to or greater than a certain width.

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