JPS6214900Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial field of application) This invention relates to a string adjustment tool used for adjusting the length of strings in rigging and the like.

(Prior Art) Such a string adjuster is known from Japanese Utility Model Publication No. 12621/1983.

This is a trapezoidal board with inverted V-shaped side walls on both sides, and elastic pieces made by bending two strings into a V shape, which are passed along the inner surfaces of the side walls. It is designed to hold each string by pressing it.

(Problem that the invention aims to solve) In order to adjust the length of the string in this conventional example, it is necessary to move the string against the pressing force that presses the string so that each elastic piece faces the inner surface of the side wall. Therefore, it is not possible to hold the string very strongly, and it requires force to move the string. Further, if the string is thick, the pressing force with which the elastic piece presses the string against the inner surface of the side wall will be strong, and if it is thin, the pressing force will be small, and the string cannot be held with a predetermined force regardless of the thickness.

(Means for solving the problem) Therefore, the present invention provides a bottom plate, a pair of side walls that stand up along both sides of the top surface of the bottom plate and face each other, and form a groove on the top surface of the bottom plate, and a space between the above-mentioned both side walls. a base integrally equipped with a clamp protrusion protruding from the top surface of the bottom plate;
a cover plate that slidably abuts the lower surface on the upper surface of both side walls of the base body and closes the open upper surface of the base body;
The lower surface of the lid plate protrudes between each side wall of the base body and the clamp protrusion and faces each side of the clamp protrusion with a clamp surface, and when the lid plate is slid in one direction, the clamp protrusion A pair of ribs is provided on one side of the base body and the lid plate to press the string passed between each side of the base body and the lid plate, and to release the pressure on the string when the lid plate is slid in the other direction. A guide groove along the sliding direction or a projecting piece that slidably fits into the guide groove is provided on the other side, and a cover plate is slid on the base body and the cover plate to compress the string. It is characterized by the provision of stop devices that abut each other when released.

(Function) To hold the string, the cover plate is slid in one direction relative to the base. As a result, the string passed between the side surface of the clamp protruding portion of the base body and the clamp surface opposite to the side surface of the rib of the lid plate is compressed and held between the side surface and the clamp surface. To adjust the length of the string, the cover plate is slid in the other direction relative to the basic body until the respective stop device abuts. This releases the pressure on the string, so you can simply shift the string in either direction.

(Example) The lid plate 11, which is the lid element 10 in FIG. 1, is flat,
It has a smooth lower surface 12 and a recess 13 with a central transverse corrugated surface 14 on the upper surface. The central recess is connected to the front and rear arcuate thickened portions 15, 16. Two ribs 17, 18 are integrally formed downwardly on the lower surface 12 of the cover plate 11, which has a substantially rectangular contour. The ribs 17, 18 have mutually parallel outer surfaces 19, 20 and opposing, divergent, non-parallel clamping surfaces 21, 22, with corrugations 23 in the vicinity of the clamping surfaces. The recess 13 facilitates the removal of the lid plate and base assembly.

In this way, the substantially wedge-shaped ribs 17 and 18 are integrally provided with projecting pieces 24 and 2 on the outer surfaces of the wide end portions thereof, respectively.
5 is provided. Further, at the narrow end on the opposite side of the rib, there are guide grooves 26 and 27 that float this narrow end away from the lower surface 12 of the lid plate.

The cover plate 11 is formed in a remote area between the opposing clamping surfaces 21, 22 of both ribs 17, 18 with a groove 28 which is open in the longitudinal direction at the end of the cover plate, and approximately in the center of which is formed a groove 28 with a height. There is a protrusion 29 that reaches as far as the lower surface 12 of the lid 11, and the protrusion 29 has an obliquely upward slope 30. This protrusion 29 serves as a stop device for the lid plate.

FIG. 2 shows a base body 31, which has a generally U-shaped cross-sectional shape due to a channel 32 extending therethrough. The basic body has a corrugated portion 33 on the outside. The front and rear portions of the corrugated portion 33 form slightly downwardly arched portions 34 and 35.

The channel 32 is formed by a bottom plate 36 and both side walls 37 that are perpendicular to the bottom plate and parallel to each other. The upper surfaces 38 of the side walls are smooth and generally parallel to the bottom plate 36 of the channel 32. At one end of the base body 31, overhanging pieces 39 and 40 overhanging the groove 32 are formed integrally with each side wall 37, and the upper surface thereof is flush with the upper surface 38 of the side wall.

Guide grooves 41 and 42 cut into each side wall 37 are formed at the other end of the base. This guide groove 41,
42 is open at the other end of the base body 31 and closed at the abutting portion 43 toward one end.

A clamp protrusion 44 is integrally formed approximately in the center of the base body 31 and protrudes upward from the bottom plate 36 , and is integrally formed with the groove passage 3 .
Located inside 2. The clamping protrusion 44 has a substantially isosceles triangular wedge shape terminating at one end with a somewhat circular apex 47 on both sides and a perpendicular end surface 4 at the other end.
8, with each side and end surface 48 having a sharp clamping edge 4
5,46 are formed. The clamping projection 44 is provided with a slope 49 on the upper surface of its wide end that slopes upwardly toward an apex 47 at one end, the slope stepping down at 50 points to form a capture shoulder 51.
This shoulder 51 constitutes a stop device for the basic body. The upper surface 5 facing from this shoulder portion 51 toward the apex 47
2 is in the same plane as the top surface 38 of the side wall 37.

The parts shown in FIGS. 1 and 2 are molded plastic parts, and are assembled and used as shown in FIG. 3. That is, the ribs 17 and 18 are connected to the bottom plate of the groove passage 32 and both side walls 37 and 3.
By sliding the cover plate 10 along the groove 3
Push it inside 2. In this case, the lower surface 12 of the lid plate slides on the upper surface 38 of the base body 31. As the cover plate 11 is moved, the projecting pieces 39 and 40 come to engage in the guide grooves 26 and 27 of the ribs 17 and 18, and the rib 1
The overhanging pieces 24 and 25 of 7 and 18 are the guide grooves 4 of the base body.
1 and 42. Finally, the slope 30 of the protrusion 29 of the cover plate 11 climbs up and passes over the slope 49 of the clamp protrusion 44, so that the protrusion 29 can come into contact with the shoulder 51 of the clamp protrusion 44 from behind. become. Thereby, the cover plate 11 and the base body 31 are slidably coupled.

When the protrusion 29 is in contact with the shoulder 51, the ribs 17 and 18 of the lid plate are in the state shown by the broken lines in FIG.
Ribs 17 facing both sides of the clamp protrusion 44
Since the spaces between the clamp surfaces 21 and 22 of 18 are open, the string 53 can be passed between them and the string can be moved to adjust the length.

Then, as the lid plate is slid upward in FIG. The string 53 is compressed and held between the clamp edges 45 and 46 of the holder. The amount by which the lid plate for compressing and holding the string is slid upward is smaller if the string is thicker, and larger if the string is thinner.

Then, to adjust the length of the string again, or to hold another string, slide the lid plate downwards until the rib 1
7 and 18 to the positions indicated by broken lines in FIG. In this state, the protrusion 29 of the cover plate is in contact with the shoulder 51 of the base body, so that the cover plate is prevented from sliding downward any further, and the cover plate is prevented from coming off from the base body.

If it is desired to disassemble the cover plate and the base body, it is sufficient to lift the cover plate 11 a little and slide the cover plate further downward while separating the protrusion 29 upward from the shoulder portion 51.

(Effect of the invention) According to the invention, the length of the string can be adjusted by sliding the lid plate and placing the ribs 17 and 18 in the position shown by the broken line in FIG. It can be moved.

Since the string is held by sliding the lid plate in the opposite direction, it is possible to press and hold the string with approximately the same tightening force, whether the string is thick or thin.

Another advantage is that it can be constructed from only two parts.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a lid plate according to an embodiment of the invention as seen from the inside, Fig. 2 is a perspective view of the base, and Fig. 3 is a cross-sectional view of the string being tightened through the string. Inside, 11 is the lid plate, 17 and 18 are the ribs, 2
4 and 25 are overhanging pieces, 26 and 27 are guide grooves, 29 is a protrusion, a stop device, 31 is a base body, 32 is a groove path,
36 is a bottom plate, 37 is a side wall, 39 and 40 are overhang pieces,
41 and 42 are guide grooves, 44 is a clamp protrusion, and 5
1 indicates the shoulder and stop device.

Claims (1)

[Claims for Utility Model Registration] (1) A bottom plate 36, a pair of side walls 37, 37 that stand up along both sides of the top surface of this bottom plate and face each other and form a groove on the top surface of the bottom plate, and A base body 31 integrally equipped with a clamp protrusion 44 protruding from the upper surface of the bottom plate between the two, and a lid plate 11 whose lower surface slidably abuts on the upper surfaces of both side walls 37, 37 of the base body to close the open upper surface of the base body. On the lower surface of the lid plate 11, there are clamp surfaces 2 that protrude between the side walls 37, 37 of the base body and the clamp protrusion 44, and are provided on each side of the clamp protrusion.
1 and 22, and when the lid plate is slid in one direction, it compresses the string passed between each side of the clamp protrusion, and when the lid plate is slid in the other direction, the pressure on the string is released. A pair of ribs 17 and 18 are provided,
In addition, one of the base body and the cover plate has a guide groove (26 and 27 or 41 and 4) along the sliding direction of the cover plate.
2) The other side is provided with projecting pieces (24 and 25 or 39 and 40) that slidably fit into the guide groove, and the cover plate is slid on the base body and the cover plate to allow the string to be attached. A string adjustment tool characterized by being provided with stop devices 29 and 51 that come into contact with each other when pressure is released. (2) The clamp protrusion 44 is wedge-shaped and closes to the clamp edge 4.
5, 46, and the clamping surface 21,
Reference numeral 22 denotes a string adjustment tool according to claim (1) of the utility model registration, in which both sides of the clamp protrusion 44 are widened in opposite directions. (3) Utility model registration claim (1) or (2) that the clamping surfaces 21 and 22 of the lid plate are provided with a corrugated portion 23
Strap adjustment tool. (4) The clamping surfaces 21 and 22 are formed integrally with the ribs 17 and 18, and the parallel outer surfaces 19 and 2 of the ribs
0 is adapted to be guided along both side walls 37 of the bottom plate Claims (1) to (3) for utility model registration
A string adjustment tool using one of the above. (5) The ribs 17 and 18 are provided with overhanging pieces 24 and 25 that overhang from the outer surfaces, and the overhanging pieces are provided with guide grooves 41 and 4 that open toward one end of both side walls 37 of the base body.
2, the other ends 43 of the guide grooves 41 and 42 define the terminal end position of the cover plate, and the clamp edges 45 and 46 of the clamp protrusion 44 at said position
A string adjuster according to claim (4) of the utility model registration in which the distance between the lid plate and the lid plate is minimized. (6) Both side walls 37 have overhanging pieces 39, 4 that overhang opposite ends of the guide grooves 41, 42.
0, and this projecting piece is provided with ribs 17 and 18 of the lid plate.
A string adjuster according to claim (5) of the utility model registration, which engages with guide grooves 26 and 27 located in the area. (7) The lid plate and the stop device on the base mutually limit the movement of the lid plate and the base in the release direction. Any one of the claims (1) to (6) for registration of a utility model.
A string adjustment tool. (8) The stop device on the cover plate is a protrusion 29 formed in the longitudinal groove-shaped recess 28 on the lower surface of the cover plate, and the stop device on the base body is a protrusion 29 formed on the upper surface of the clamp protrusion 44. The strap adjustment device according to claim (7) for utility model registration, which is the shoulder portion 51. (9) The clamp protrusion has an upward slope 49 on the front surface of the shoulder 51, which cooperates with the counter slope 30 of the stop device 29 of the lid plate.Claim (8)
Strap adjustment tool. (10) From the utility model registration claim (1), in which the base body has corrugated portions 13 and 33 on the lower surface and the lid plate has corrugated portions 33 on the upper surface, respectively, and the corrugated portion 13 of the lid plate is disposed within the arched bottom portion. 9) A string adjustment device using one of the items listed above.