JPS5932691B2 - Bracket set for transportation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an adjustable bracket tightening device using an elastic body for attaching a bracket or the like to a rod or shaft having a circular cross section. This invention relates to a coupling structure between a specific shape and a fixing groove provided in a rod or shaft.

BACKGROUND OF THE INVENTION Conventionally, methods for fixing brackets in mechanical devices have generally been set screws, clamps, keys, etc., and have been used as simple and safe methods.

However, for parts such as weighting arms in spinning machines, which require a particularly large number of detailed adjustments, are limited in location, and require a high degree of certainty and stability in each installation state, conventional None of the methods are satisfactory.

In other words, these conventional methods have disadvantages such as the fact that the set conditions are relatively easy to go awry based on empirical implementation, and that correction requires skill and skill, resulting in unexpected trouble, and is difficult to access due to location. There is.

For this reason, in cases such as those mentioned above, various new attempts have been made up to now, but all have been little more than the same.

In addition, various deficiencies have been pointed out in the conventional methods of direct fixation, such as set screws, clamps, and keys, as a result of experience when managing multiple weights in factories, and various improvements have been attempted. However, the current situation is that satisfactory results have not yet been achieved.

Therefore, the applicant developed an adjustable bracket tightening device using an elastic body as disclosed in Japanese Patent Publication No. 56-1489.

That is, we have developed a bracket tightening device that includes four main components: a rod or shaft R, a bracket (bracket) B, an adjusting screw (adjuster) J, and an elastic body S such as a plate spring.

In particular, in this method, as an example, an elastic body S such as a plate spring holds a cylindrical body such as a cylindrical roller at its tip,
This includes an interlocking connection between the cylindrical body and a long groove provided in the bracket.

However, in the case of this method, in a weighting arm that carries a heavy load, there is a possibility that instability factors may sometimes occur due to problems mainly in manufacturing the balance spring.

The main problem is that the balance spring that grips the cylindrical roller and the gripping surface of the cylindrical roller tend to have gaps and deviations due to slipping or slight rolling on the rounded surface.

An effective way to prevent this is to use a ball instead of a wide cylindrical roller, and make sure that the contact pressure surface with the balance spring is in close contact with the ball. By drilling holes in the bracket, it is possible to increase the effect of stable gripping due to full-surface contact.

Of course, even in the case of a cylindrical roller, it is possible to stabilize it by processing this part so that it closely contacts the roller.

However, there may be cases in which there are still uncertainties associated with either the cylindrical roller method or the ball method described above.

Solving this problem is absolutely necessary in order to develop the best and most versatile products.

This invention includes the above, and is based on verification experiments based on the results of various practical tests focusing on the possibility of various problems occurring with adjustable bracket fastening devices. The structure of this invention is explained as follows according to FIGS. 1 to 10 along with the prior invention shown in FIGS. 1 to 6.Q The principle of the mechanism leading to this invention is based on the basic principle already presented in the prior invention. It consists of the four main elements shown in Figure 1.

That is, they are a tightening rod or shaft R, a bracket B, an adjusting screw part (adjuster part) J, and an elastic body S such as a plate spring.

In the drawing, the tip C of both ends of the elastic body S is attached to a fixed point on the main body of the bracket B, and the rear end C is attached to a fixed point on the main body of the bracket B.
It is in a state of meshing engagement with the recessed long groove formed in the direction of the axis XX' of the rod R in a free contact manner.

In addition, the block a of the adjustment screw part J is an integral structure with the above-mentioned C-point bracket (B) body, and the adjustment screw fits into the screw groove of the block a to be freely adjustable. It is in a position that pushes the middle part.

In such a configuration, if the adjustment screw part J is adjusted in the direction in which the elastic body extends, that is, in the direction in which point P is pushed down, c-b
The ZZ' axis of B is the vertical axis Y of the rod.
As it approaches Y', the angle θ becomes smaller.

On the other hand, when the elastic body S is adjusted in the direction in which it contracts, that is, in the direction in which the set bolt moves upward, the restoring force of the elastic body S causes C-
Since the distance between B is reduced, the ZZ' axis moves away from the YY' axis, and the angle θ opens to the larger side, and the bracket) B retreats clockwise (clockwise).

In addition, within the restoring operation range of this elastic body, its residual internal stress F.

Therefore, the rear end of the elastic body S is located at the contact fitting surface d of the mounting shaft R, and acts as a tightening pressure F1.

Also, if you loosen the adjustment screw until Fo≦0, the bracket will close)
B can be freely adjusted in the long groove axis direction (X-X') of the rod R.

That is, the present invention is based on the above-mentioned principle, and as shown in FIG.
A state is formed in which both ends of the elastic body S are fixedly connected with each other as an intermediate body, and the strain of the ferroelastic body S is changed by adjusting the adjusting screw part J attached to the bracket B itself.

Through this operation, a structure is adopted in which the fastening angle and lateral position of the bracket B with respect to the rod R can be freely adjusted by adjusting and arbitrarily selecting the distance between a and b.

The difference between Figures 4 and 5 is that the method of using the elastic plate spring S is reversed, and the principle of operation is the same, but Figure 5 is an example in which the adjustment direction of the adjustment screw part is reversed compared to the former. It is.

Each can be used differently depending on space, ease of operation, how to apply external force, etc.

A cylindrical roller or ball is held at the tip of the leaf spring S, and is adapted to mesh with a long groove or hole provided in the bracket.

The present invention based on the above principle will be explained below with reference to FIGS. 7 to 10.

In FIG. 7, the device or mechanism according to the present invention includes a rod or shaft R having a circular cross section, an arm bracket B1, an adjustment screw part (adjuster part) J, and an otsu lever L.
It consists of a swing block L2, a pivot pin P, a link block S1, and a plate spring S2.

Therefore, instead of using a directly elastic plate spring as a means for bridging between the rod or shaft and the pivot pin P, the swing block L2 and the link block S1
This forms a link structure connected in the manner of a rotational joint, thereby variably bridging the rod or shaft R and the pivot pin P.

This structure has a strong plate spring S2 supported at both ends inside the swing block, and this plate spring S2
The center part of the opposite side of the support at both ends is the link block S mentioned above.
It comes into pressure contact with the projection S"1 on the back of 1.

This imparts a directional elastic action to the link motion mechanism, providing a function that closely corresponds to the adjustment of the adjustment screw J and the longitudinal groove R' of the support rod R and the fitting leg of the link block S1. In other words, a sufficient tightening pressure for fitting with the protrusion S1 is generated.

Specifically, the device or mechanism according to the present invention has the following structure.

A rod or shirt R having a long groove R' is rotatably fitted into a hole B' in the lower part of the arm bracket B.

Then, a pivot pin P is fitted into the hole of the arm bracket B and supported directly above this tightening rod or shaft R,
A pair of lock levers Ll and a swing block as shown in FIGS. 8 and 9 are supported on this pivot pin P so that two forces can be combined into one and can be rotated up and down.

The lock lever Ll has a hole 1 for the pivot pin and a stop pin 1.
2, and holes 3, 4, corresponding to the mounting holes 6, 7, 8 provided in the swing block L2.
5 are provided, and both are integrally connected by pins or ports 9, 10, and 11.

In the drawings, reference numeral 12 denotes a pair of lock levers, which are pins connecting the lower parts of the lock levers and serve to control the protrusion of the link block S1 in relation to the tip 1T of the link block S1.

The swing block L2 has a roughly 7-shaped shape with a flat surface on the top, and has a recess 13.14°15 inside for fitting and holding the link block S1 and plate spring S2 shown in FIG. is provided.

As shown in FIG. 10, the link block S1 has a cylindrical upper end 16 that fits in the recess 13 of the swing block L2 and is swingably supported, and a swing block 2.
It has a concave lower end 17 which can be engaged with the stop pin 12 of the holder.

Further, at an intermediate position on one side, there is a protrusion 81' that engages with the longitudinal groove R' of the rod or shaft R, and on the other side, there is a protrusion S1 that comes into contact with the plate spring S2.

The plate spring S2 is connected to the swing block L at both ends.
2, and this swing block L
2 and the link block S1.

Therefore, the adjustment screw J attached to the arm bracket) B
The tip of the plate spring S2 is swing-locked and adjustably abuts on the flat upper surface of S2 and pressurizes it.
The projection 81' of the link block S1 is engaged with and connected to the longitudinal groove R' of the rod or shaft R through.

In this case, the plate spring S2 plays an important role in elastically engaging the link block S1 with the longitudinal groove R' of the rod or shirt H.

That is, in such a structure, when the adjusting screw J is adjusted in the tightening direction (the direction of the arrow X extending downward), the swing block L2 rotates clockwise about the pivot pin P.

As a result, as shown in FIG. 7, in the relationship a-b-c formed by the link mechanism, the distance between sides a-c increases.

Therefore, the support bracket) B is moved in the counterclockwise direction (arrow Y
direction).

On the other hand, the plate spring S2 pushing the link block S1 increases its curvature deformation and increases the tightening pressure in the longitudinal groove R' of the rod or shirt R.

At the position where adjustment of the adjusting screw J is stopped, these changes stop and a balanced stationary state is achieved.

Next, loosen the adjustment screw J in the direction (direction that goes upward).
When adjusted to
- It acts in the direction of shortening the distance of C.

This action is maintained until the lower end 11 of the link block S1 contacts the pin 12 fixed to the lower end of the lock lever Ll.

The direction of rotation of the arm bracket B at this time is clockwise (direction of arrow Z).

When the adjustment of the adjusting screw J is stopped, the same balanced stationary state as described above is achieved at the original position.

As explained above, the present invention provides a device or mechanism for selectively fixing a bracket or the like to a rod or shaft having a circular cross section, which includes a bracket having a hole at a predetermined position and a longitudinal groove on the outer circumferential surface. a rod or shaft that is loosely fitted into the hole of the bracket; a pair of lock levers that are rotatably supported at one end by a pivot pin fixed to the bracket and that bridge and hold a stop pin at the other end; a swing block connected between the lock levers and having a flat part on the upper part; a protrusion that engages with the longitudinal groove of the rod or shaft; one end of the swing block is swingably supported by the swing block; a link block that can be engaged with a stopper of the lock lever; a plate spring that is held between the swing block and the link block and presses the link block toward the rod or shaft; The present invention relates to an adjustable bracket tightening device that uses an elastic body and includes an adjustment screw that is attached and comes into contact with the flat surface of the swing block at its tip.

The device according to the invention produces many effects as follows.

In other words, adjustments can be made freely and easily even during movement, and small and precise adjustments can be easily made, allowing anyone to make correct installation and adjustment without special skill, which saves labor when managing a large number of parts. This is a large contribution.

Furthermore, since the internal stress of the elastic body is always applied during tightening, there is no risk of loosening of the tightened part due to impact, vibration, etc.

Therefore, stability is good and tightening reliability is high.

Furthermore, since it can be adjusted in one place and in one direction, it is efficient and rational, and has great advantages in terms of operation and operation compared to conventional systems, especially when managing multiple systems.

Moreover, compared to a completely fixed type, this invention has flexibility in use because it uses an elastic body, and is particularly convenient as a tightening device for a device such as a waiting arm, and has great advantages in general maintenance.

Furthermore, as a structure, it is reasonable in terms of design and operation.

In the case of a waiting arm, it may also be used as a safety device against damage when wrapping cotton.

In addition, the structure is simple and the space is relatively small, so it can be used effectively.

At the same time, it does not require any special skills to manufacture or assemble, making it suitable for mass production.

[Brief explanation of the drawing]

FIG. 1 is a drawing showing the principle on which this invention is based. FIGS. 2 to 6 are drawings for explaining various applications and specific embodiments of the application of the principle shown in FIG. 1, respectively. FIG. 7 is an explanatory view of a typical embodiment for explaining the present invention, which is an improvement of the separate application shown in FIGS. 1 to 6. FIG. 8 is a three-dimensional external view showing the main parts in FIG. 7. FIG. 9 is a diagram showing the lock lever and swing block shown in FIG. 8 separately. Finally, FIG. 10 is a diagram showing the link block and plate spring in FIG. 8 separately. R... Tightening rod or shaft, B...
...Arm bracket, J...Adjustment screw part (adjuster part), P...Pivot pin, Ll...
...Rotsukurei", L2...Swing block, Sl...Link block, S2
・・・・・・Plate spring.

Claims (1)

[Claims] 1. A device or mechanism for selectively fixing a bracket or the like to a rod or shaft having a circular cross section, which includes a bracket having a hole at a predetermined position, a longitudinal groove on the outer circumferential surface, and a loosely fitted state in the hole of the bracket. A rod or shaft located at the bracket, a pair of four levers that are rotatably supported at one end on a pivot pin fixed to the bracket and a locking pin at the other end, and an upper portion that is not connected between the lock levers. a swing block having a flat part at the top thereof, and a protrusion that engages with the longitudinal groove of the rod or shaft, one end of which is swingably supported by the swing block, and the other end of which is connected to a stop pin of the lock lever. a link block that can be engaged; a plate spring that is held between the swing block and the link block and presses the link block toward the rod or shaft; consisting of an adjustment screw that comes into contact with the flat surface of the
Adjustable bracket tightening device using elastic material.