JPS6350630Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention relates to a buoy balancer for a Western bow, and more specifically, to a buoy balancer (double stabilizer) for a hand riser to prevent the bow from rolling and maintain balance.

(b) Conventional technology Generally speaking, various stabilizers are known for Western bows in order to reduce vibrations and shots during release. Among the stabilizers, the buoy balancer (double stabilizer), which has the function of balancing left and right and preventing lateral sway, generally has a main body for attaching weights to the left and right in a well-balanced manner, as shown in Figure 7, and a main body attached to a western bow. It was known to consist of a set bolt for fixation, and to attach the main body directly to a Western bow.

(c) Problems to be solved by this invention The buoy balancer that has been commonly used in the past consists of a main body and a set bolt for fixing the main body to the bow handle through a through hole that passes through the center of the main body. was.

In such a conventional example, in order to attach the main body to the Western bow handle, when the set bolt is passed through the main body and screwed into the Western bow handle, the rotational torque of the set bolt is transmitted to the main body, and the main body is also slightly damaged. It had the problem of rotating compared to Western bows. Therefore, in order to adjust the main body and bow to each other at a 90° angle, it is necessary to tighten the set bolt a little, adjust the angle of the main body to the bow to 90°, and then tighten the set bolt again. However, the setting bolt had to be continued until it was firmly fixed to the Western bow handle, and it had the disadvantage that it took a long time to attach the buoy balancer to the Western bow.

Also, once the buoy balancer is removed from the bow, when reinstalling it,
Another drawback was that the angle between the buoy balancer and the bow had to be re-adjusted.

Furthermore, it is said that it is not possible to adjust minute angles, such as when the angle between the western bow and the main body changes slightly when the set bolt is tightened strongly at the end to maintain the 90° angle between the western bow and the main body. There were some problems.

(d) Means to solve the problem This invention consists of a bow mounting part, a rotating cover, a main body,
The bow attachment part consists of a fixing part that is fixed to the hand riser and a cylindrical head that is continuous with the fixing part. The rotating cover has a hollow cylindrical shape that can accommodate the head of the western bow mounting part, and is provided with a bolt that can be fixed by pressing the groove part of the western bow mounting part, and is fitted and abutted on the main body. The body has a structure in which weights are removably attached to both ends in the longitudinal direction, a through hole through which a set bolt passes through the center part, and a fitting part that fits and abuts the rotating cover. A buoy balancer characterized in that the set bolt has a male thread that is screwed into the head of the bow attachment part through a through hole in the main body and the cylinder of the rotating cover, and a head that presses the main body against the rotating cover. This proposal solves the above problems.

(e) Effect This invention fixes the western bow mounting part to the western bow body,
Store the head of the western bow mounting part in the rotating cover, fix the western bow mounting part, fix the main body by touching the rotating cover, pass the set bolt through the through hole provided in the main body, and fix it to the cylindrical head of the western bow mounting part. do. When this buoy balancer body is attached to a Western bow, the rotational torque of the set bolt is not directly transmitted to the body, so the buoy balancer body does not rotate relative to the Western bow.

Furthermore, when the buoy balancer is removed from the western bow, by keeping the western bow attachment part and the rotating cover fixed to the western bow body, when it is reattached, it can be easily attached to the position where it was previously attached.

(F) Example Below, Figure 1 shows the front view when the buoy balancer is attached to a Western bow, Figures 2, 3, 4, and 5 show the plane of each part, the front view, and the assembled state. An embodiment of this invention will be described with reference to FIG. 6.

1 is a hand riser (Western bow), and 2 is a buoy balancer. A hole for mounting a buoy balancer 2 is provided in the hand riser 1, and a female mounting screw 3 is screwed into the inner surface of the hole. The buoy balancer 2 includes a bow attachment part 4 in the form of a screw-in bolt, a rotating cover 5, a main body 6, a set bolt 7, and a weight 8.
It consists of more.

As shown in FIG. 2, the bow mounting part 4 has a hollow cylindrical head 9 with a female thread on the inner wall, and a mounting screw 10 which is a male thread with a smaller diameter than the head 9 and integrally extends continuously. and configure. The head 9 is provided with a groove 13 that goes around the circumferential direction of the cylinder, and a tightening hole 12 is provided in the side surface of the cylinder peripheral wall. The groove portion 13 is provided on the mounting screw 10 side. Mounting screw 10
is screwed into the female mounting thread 3 of the hand riser 1.

As shown in FIG. 3, the rotary cover 5 has a hollow cylindrical shape, the diameter of the penetrating portion at one end is smaller than that of the other hollow portion, and a fitting convex portion 14 is formed linearly at the end. The inner diameter of the cylinder of the rotary cover 5 is sufficient as long as it can accommodate the head 9 of the bow attachment part 4, but in this embodiment, it is configured to be approximately the same size as the outer diameter of the head 9. On the cylindrical side surface of the other end of the rotary cover 5, three hexagonal socket head bolts 15 are provided perpendicularly to the cylinder center axis at an angle of about 120° so as to be screwable in the direction of the cylinder center axis.

The main body 6 has a cylindrical longitudinal shape as shown in FIG. 4, and has a structure in which weights 8 and the like can be attached and removed at both ends in the longitudinal direction, and a recess 23 having a width approximately the same as the outer diameter of the rotating cover 5 on both sides of the center part. Further, a fitting recess 17 is provided in the recess 23 on the rotary cover 5 side of the recess 23,
A through hole 16 is bored in the center. Fitting recess 17
are provided on both sides of the through hole 16, and the rotating cover 5
It abuts and fits with the fitting convex portion 14 of.

As shown in FIG. 5, the set bolt 7 has a male threaded portion 19 having a smaller diameter than the head 18 extending from one end of the cylindrical head 18, and a hole provided at the other end of the head 18. A female thread 21 for fixing the center rod 20 etc. is screwed onto the inner surface of the part. Also head 1
A tightening hole 22 is provided on the side surface of the head 18 in a direction perpendicular to the cylindrical center of the head 18.

Next, use each part to connect buoy balancer 2 to western bow 1.
Attach to.

First, insert an iron rod or the like strong enough to screw and fix the western bow mounting part 4 to the female mounting thread 3 of the western bow 1 into the tightening hole 12 of the western bow mounting part 4, and then screw the mounting screw of the western bow mounting part 4. 10 and the female mounting screw 3 are firmly screwed together and fixed. Next, insert the rotary cover 5 into the head 9 of the Western bow attachment part 4 from the side of the arrow finger A, and lightly screw in the hexagon socket head bolt 15. The hexagon socket head bolt 15 will enter the groove 13, and the rotation cover 5 will attach to the Western bow. Although it is possible to rotate around the part 4, it becomes impossible to come out. In this state, when the concave part 17 of the main body 6 is further fitted into the convex part 14 of the rotating cover 5 and the main body 6 is rotated, the main body 6 and the rotating cover 5 are attached to the western bow mounting part which has already been fixed to the western bow 1. You will be able to rotate around 4. By rotating the main body 6 in this manner and further tightening the hexagon socket head bolts 15 of the rotating cover 5 at the position where the western bow 1 and the main body 6 intersect at an angle of 90 degrees, the rotating cover 5 can be attached to the western bow. The rotary cover 5 is fixed to the bow attachment part 4 and cannot rotate around the part 4.

Also, when adjusting the angle between the Western bow 1 and the main body 6 to 90 degrees, rotate the rotating cover 5 around the Western bow mounting part 4 by the required slight angle, and screw in the hexagon socket head bolt 15 at that position. However, since the center of the hexagon socket head bolt 15 is perpendicular to the center of rotation around the western bow mounting part 4, even if the rotational torque is transmitted to the western bow mounting part 4 when screwing in, there is no effect, and the adjusted position is not affected. Fixed.

Next, the fitting recess 17 of the main body 6 is inserted into the rotating cover 5.
After the set bolt 7 is fitted into the fitting projection 14 of the main body 6, the set bolt 7 is passed through the through hole 16 of the main body 6 and screwed into the female thread 11 of the bow attachment part 4 in the rotary cover 5. Then, an iron rod or the like strong enough to withstand the tightening of the set bolt 7 is inserted into the tightening hole 22 and tightened onto the female screw 11. At this time, the western bow 1, the western bow attachment part 4, and the rotating cover 5 are already fixed, and the fitting recess 17 and the fitting protrusion 14 are fitted, so when tightening the set bolt 7, the main body 6 and the western bow There is no possibility that the angle with 1 will deviate.

Further, the buoy balancer 2 can be mounted not only at the female mounting thread 3 but also at any position on the bow 1.

In addition, after the competition, buoy balancer 2 and western bow 1
When removing it from the bow, loosen the set bolt 7 and remove it from the bow attachment part 4, and remove the main body 6. At this time, since the fitting protrusion 14 of the rotary cover 5 that fits into the fitting recess 17 of the main body 6 does not move with respect to the Western bow 1, the main body 6
When reattaching the bow, the main body 6 and the bow 1 can assume the already adjusted angle. In addition, by making the fixing of the Western bow mounting part 4 and the rotating cover 5 and the screwing state of the rotating cover 5 and the set bolt 7 more robust than the screwing of the Western bow mounting part 4 and the female mounting thread 3, the setting bolt 7, Main body 6, rotating cover 5,
The bow attachment part 4 remains fixed when the buoy balancer 2 is attached.
It is also possible to remove the entire bow from the bow 1. In this case, when reinstalling the buoy balancer 2 after removing the entire buoy balancer 2, the position where the western bow mounting part 4 and the female mounting thread 3 are screwed together and fixed is fixed, so if the buoy balancer 2 and the western bow 1 are tightened with the same tightening torque, the buoy balancer 2 and the western bow 1 are fixed. The angle formed by the angle can be an angle that has already been adjusted.

(g) Effects of the invention Therefore, when attaching a buoy balancer to a hand riser (Western bow), it is very easy to make subtle adjustments to the angle between the hand riser and the body to which the weight is attached in order to balance the left and right sides. effective.

Moreover, even when the buoy balancer body is once removed and then reattached, the angle between the hand riser (Western bow) and the buoy balancer body can be very easily and precisely restored to the angle before removal.

[Brief explanation of drawings]

Figure 1 is a front view of an embodiment of this invention, Figures 2 to 5 are front and side views showing parts of an embodiment of this invention, and Figure 6 is an assembled view of an embodiment of this invention. FIG. 7 is a front view showing a conventional example. 1... Hand riser (Western bow), 2... Buoy balancer, 3... Mounting female thread, 4... Western bow mounting part, 5... Rotating cover, 6... Main body, 7... Set bolt, 8... Weight, 9 ...Head, 10...
...Mounting screw, 11... Female thread, 12... Tightening hole, 13... Groove, 14... Fitting convex portion, 15...
Hexagon socket head bolt, 16...through hole, 17...fitting recess, 18...head, 19...male thread part, 20...
... Center rod, 21 ... Female thread, 22 ... Tightening hole, 23 ... Recess.

Claims (1)

[Scope of utility model registration request] It has a western bow mounting part, a rotating cover, a main body, and a set bolt.The western bow mounting part consists of a fixed part that is fixed to the hand riser and a cylindrical head that is continuous with the fixed part, and the head has a female thread on the inner circumference of the cylinder. The rotary cover has a hollow cylindrical shape that can accommodate the head of the bow mounting part, and a bolt that can be fixed by pressing the groove of the bow mounting part. The main body has a fitting part that fits and abuts on the main body, and the main body has removable weights at both ends in the longitudinal direction, a through hole through which a set bolt passes through the center part, and a fitting part that fits into the rotating cover. The set bolt has a male screw threaded through the through hole of the main body and the cylinder of the rotating cover to be screwed onto the head of the bow attachment part, and a head that presses the main body against the rotating cover. Buoy balancer is characterized by one thing.