JP2010162128A - Support frame structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To build a support frame structure capable of securing an eccentric distance from a position just below a specific position on a base board surface G as long as possible at the specific position of prescribed height. <P>SOLUTION: A main support 10 is raised on the base board surface G at a prescribed angle of inclination. The main support 10 is supported at the intermediate part by a sideways inclined support 11 from a side, and supported by a rearward inclined support 12 orthogonally crossing the side from the rear. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a frame body used for placing, gripping, or holding a target object, and more particularly to a support frame structure that forms a frame body with pillar members.

When an object is arranged at a specific position of a predetermined height, a normal columnar member is normally built vertically on a reference plane (usually the ground), and the object is installed at the tip or upper part of the columnar member.
However, when it is difficult to build a column material directly below the specific position, a straight column material is built at a position eccentric from the position directly below the reference plane, and a horizontal material, a bending member or an oblique member is installed from the column material. A structure is adopted in which the tip is made to reach the specific position. However, in this case, if the horizontal member or the bending member becomes long, a large eccentric moment acts, and the load to the tip cannot be endured, resulting in breakage, and the size of the eccentric distance is naturally limited. .
Also, in the case of diagonal materials, the base portion can be embedded in the ground to have an anchoring action, and the tip can reach the specific position, but the eccentric distance cannot be taken as in the above case. is there.
Therefore, it is difficult to take a large eccentric distance by these means.

  In view of the above circumstances, the present invention is a structure made of a novel column material that can take as much as possible an eccentric distance from a position on a base surface directly below a specific position at a predetermined height, that is, a column. The purpose is to obtain a frame structure.

In order to achieve the above object, the support frame structure of the present invention adopts the following configuration.
The strut frame structure of the present invention is as described in claim 1,
A main pillar 10 having a predetermined length which is erected with a predetermined inclination angle, with its bottom surface set on the base surface;
Side inclined pillars 11 that are arranged on the sides of the main pillars, and that have bottom surfaces that are also grounded on the base surface, and whose upper ends are fixed to the middle part of the main pillars or positions below the middle parts,
A rear inclined column 12 that is arranged behind the main pillar and has a bottom surface that is also grounded on the base surface and whose upper end is fixed at an intermediate portion of the main pillar or a position below the intermediate portion;
It is characterized by comprising.
In the above configuration, the position of the middle portion of the main column 10 to which the side inclined column 11 and the rear inclined column 12 are fixed includes the height of one half of the main column 10 and the upper and lower neighboring positions. Moreover, the attachment position to the main pillar 10 of the side inclination support | pillar 11 and the back inclination support | pillar 12 is not limited to the same height.
In the above configuration,
(1) An additional body is extended at the upper end of the main pillar,
(2) The main pillar is tiltable,
(3) The main pillar is composed of multiple stages and can be expanded and contracted.
Is an optional matter that is adopted as appropriate.
(Function)
The main column is supported at two points from the side (z direction) and rear (x direction) in the middle part, and the eccentric moment due to the extension of the main column above (y direction) is distributed in two directions perpendicular to each other. The main column can be freely extended three-dimensionally obliquely upward (in the three-axis directions of x, y, and z) while maintaining a large eccentric distance.

According to the support frame structure of the present invention, the eccentric distance from the position on the base surface directly below can be taken as large as possible at a specific position at a predetermined height where the main pillar is desired.
In addition, the main pillar can be freely arranged three-dimensionally, and a rational design is possible.
Furthermore, the length of the side inclined support column and the rear inclined support column can be shortened as much as possible, and it does not become an obstacle on the base surface.

The front view (one direction arrow of Drawing 2 and Drawing 3) which shows the example of application to the ball game batting practice device of one embodiment of the strut frame structure of the present invention, and shows the whole composition (constant state) of the ball game batting practice device View). FIG. 4 is a side view showing the entire ball game hitting training apparatus (a view taken in the direction of the arrow in FIGS. 1 and 3). FIG. 3 is a plan view showing the entire ball game hitting training apparatus (viewed in three directions in FIGS. 1 and 2). FIG. 2 is an operation diagram of the ball game hitting practice device in a moving state, in which FIG.

Embodiments of the support frame structure of the present invention will be described with reference to the drawings.
1 to 4 show an embodiment of the present strut frame structure and show an application example to a ball game (baseball) batting practice device (hereinafter simply referred to as a batting practice device). Further, the batting practice device adopts a portable mode.
In the figure, FIGS. 1 to 3 show the overall external configuration of the batting practice apparatus S, and FIG. 4 shows the operating state of the apparatus S.
In the figure, G is the ground surface or floor surface on which the batting practice device S is placed as a base surface, and a indicates the flight direction of the batting ball.

As shown in FIGS. 1 to 3, the hitting practice device S of the present embodiment includes an upper wire system mainly composed of two sets of upper wires 2 via a hitting ball 1 and two sets of lower wires 3. The upper and lower frame mechanisms (4, 5) that hold the upper and lower wire systems, and the upper and lower wire systems are arranged along the upper and lower wire systems. It is comprised from the exercise | movement mechanism part (Sa, Sb) which provides an exercise | movement function.
More specifically, the frame mechanism includes a support frame 4 as an upper frame that mainly holds the upper wire, and a base 5 as a lower frame that draws the upper and lower wires and holds these wires.
Further, the motion mechanism section includes a striking mechanism section Sa that provides a striking space for the striking practitioner and performs a feeding and pulling motion of the wires 2 and 3 by striking, a moving pulley mechanism 6 and a pulling back mechanism 7. 3 and a return mechanism portion Sb that exhibits a predetermined pull back action associated with the feed and pull back.
In addition, the front-rear relationship of this hitting practice device S is defined as the direction in which the hitting ball 1 flies forward. Also, the x, y, and z axes shown in the figure indicate the three-dimensional positional relationship of the apparatus S, the direction in which the ball 1 flies is taken as the x axis, the height direction is the y axis, and the width or depth direction is the z axis To take.

Hereinafter, the configuration of each unit will be described in detail.
Frame mechanism (See Figs. 1-3)
The frame mechanism includes a support frame 4 and a base 5, has rigidity, and functions as a machine frame that holds a functional member. In the batting practice device S, the strut frame 4 forms a characteristic part, but the base 5 also receives the return mechanism Sb, attaches the strut frame 4, and further installs and positions the batting practice device S. Responsible for determining the standard. That is, the base 5 functions as a basic surface of the concept of the present invention.

Prop frame 4 (see FIGS. 1 to 3)
The support frame 4 has a base end 10 fixed on the base 5 and erected at a predetermined angle. Similarly, the base end is implanted on the base 5 and the upper end is fixed to an intermediate portion of the main pillar 10. The side inclined support column 11 and the rear inclined support column 12 with the base end positioned rearward of the base 5 and the upper end fixed to the middle portion of the main column 10. In the figure, α represents the projection angle of the main column 10 onto the yz plane, and β represents the projection angle onto the xy plane.
Further, the main pillar 10 is horizontally extended in the lateral direction, that is, in the z direction with a horizontal extension 13 as an additional body at the upper end.
Each of the column members 10, 11, and 12 has a hollow shape in the present embodiment and has a square cross section in the illustrated example, but does not exclude a circular cross section.
(Main pillar 10)
The main column 10 of the support frame 4 is fixed at the base end on the base 5 and is inclined rearward (x direction) and side (z direction) at a predetermined angle. That is, they are arranged three-dimensionally obliquely. The main pillar 10 is bent at the upper end thereof, and a horizontal extension 13 as an additional body is extended in the horizontal lateral direction (z direction).
The main pillar 10 has a hollow shape, and an appropriate number of fixed pulleys are installed therein, and the upper wire 2 is wound around the fixed pulley and inserted into the hollow portion. Further, the base end thereof is installed in communication with the opening 14 formed in the base 5.
The main column 10 has a base end fixed to the base 5, but does not exclude a removable mode and does not exclude a mode allowing rotation.
(Side-inclined support 11)
The side inclined column 11 has a proximal end planted near the center on the base 5 and has an upper end fixed to a bracket member 10 a attached to an intermediate portion of the main column 10. Determine α. The laterally inclined column 11 has a hollow shape in order to reduce the weight, but does not exclude the solid.
The side inclined column 11 has a base end fixed to the base 5, but does not exclude a removable mode and does not exclude allowing rotation.
The fixing to the main pillar 10 does not exclude a removable mode, and does not exclude pin fixing that allows rotation.
(Back inclined column 12)
The rear inclined column 12 is placed at a rear position near the center of the rear side surface of the base 5 via an end plate 12a, and the upper end is fixed to a bracket member 10b attached to an intermediate portion of the main column 10, The backward inclination angle β of the column 10 is determined. The rear inclined column 12 has a hollow shape in order to reduce the weight in the same manner as the side inclined column 11 described above, but does not exclude solid.
The fixing of the rear inclined column 12 with the main column 10 does not exclude a removable mode, and does not exclude pin fixing that allows rotation.
The side inclined column 11 and the rear inclined column 12 are attached to the main column 10 by using fixing means that can be assembled and disassembled, for example, bolts and nuts. It is done.

Base 5 (See Figs. 1-3)
The base 5 has a rigid hollow box shape. As described above, the upper and lower wires 2 and 3 are drawn in, the wires 2 and 3 are held, and the return mechanism Sb is held. It has the function of determining the installation and position reference of the batting practice device S.
For this reason, the base 5 has an opening 15 outside the opening 14 described above on its upper surface. The opening 14 is an opening for the so-called upper wire 2 that communicates with the hollow portion of the main pillar 10, and the opening 15 is an opening for the lower wire 3.

As described above, the frame mechanism of the hitting practice device S of the present embodiment bears the following functions in association with the support frame 4 and the base 5.
First of all, the upper wire 2 formed on the horizontal extension 13 of the main pillar 10 with respect to the support frame 4 constituting the frame mechanism, particularly the upper and lower wires 2 and 3 held by the main pillar 10 and the base 5. The main function is to provide an arrangement surface that maintains a predetermined inclination angle between the outlet (or outlet) and the outlet (or outlet) of the lower wire 3 formed on the base 5. .
Next, in this frame mechanism, one miniaturized housing structure is obtained, and the wire system of the upper and lower wires 2 and 3 and the motion mechanism portion (Sa, Sb) that imparts a motion function to the wire system in this housing structure. ) Is incorporated and accommodated, and the structure is suitable for carrying.

The motion mechanism portion The motion mechanism portion is arranged along the upper wire system and the lower wire system and has a function of imparting a motion function to the wire system, and includes a hitting mechanism portion Sa and a return mechanism portion Sb.

Stroke mechanism part Sa
The striking mechanism part Sa provides a striking space for the striking practitioner and has a function of performing the feeding and pulling-back movements of the wires 2 and 3 by the striking.
The striking mechanism portion Sa of the present embodiment includes a striking ball 1 arranged on an inclined surface formed by a frame mechanism composed of a support frame 4 and a base 5, and an upper wire 2 and a lower wire 3 that are radially stretched on the inclined surface. It is comprised by.
(Hit ball 1)
The hitting ball 1 forms a sphere, and a single wire 17 having a predetermined length is integrally disposed through the center thereof, and a joint 18 (upper joint 18a, lower joint 18b) is disposed at the end of the wire 17. Is done.
(Upper wire 2 / Lower wire 3)
The upper wire 2 includes the wire 17 and the joint 18a disposed on the upper portion of the hitting ball 1, and includes two wires 20 (20a and 20b) disposed via the joint 18a.
The lower wire 3 includes a wire 17 and a joint 18b arranged at the lower part of the hitting ball 1, and includes two wires 21 (21a and 21b) arranged via the joint 18b.
The upper wire 2 is guided into the main column 10 via the guide roller 22 at a position higher than the joint 18a, and is hung around a vertical fixed pulley appropriately arranged in the main column 10, so that the vertical wire in the base 5 Guided to a fixed pulley. The wire 2 in the base 5 is further guided to the return mechanism portion Sb.
The lower wire 3 is guided into the base 5 through the guide roller 23 at a position lower than the joint 18b, and is wound around a vertical pulley arranged side by side in the base 5. The wire 3 in the base 5 is further guided to the return mechanism portion Sb.

Return mechanism Sb (see FIG. 4)
The return mechanism portion Sb is linked to the striking mechanism portion Sa, receives the supply of the wires 2 and 3, and exhibits a predetermined pull back action associated with the supply / retraction.
For this reason, the return mechanism portion Sb includes a main portion of a moving pulley mechanism 6 that is a combination of a fixed pulley and a moving pulley, and a pullback mechanism 7 that is arranged in conjunction with the moving pulley of the moving pulley mechanism 6.
In the present embodiment, the upper wire system of the upper wire 2 and the lower wire system of the lower wire 3 employ the substantially identical moving pulley mechanism 6 and pullback mechanism 7 and operate synchronously.

(Dynamic pulley mechanism 6)
The moving pulley mechanism 6 is guided to the fixed pulley group 30 and the moving pulley group 31 from the striking mechanism portion Sa through or without an appropriate guide horizontal pulley.
The fixed pulley group 30 is composed of two parallel fixed pulleys 33 and 34.
The movable pulley group 31 includes two side-by-side movable pulleys 35 and 36, and is arranged at a position away from the fixed pulley group 30 by a predetermined distance in a fixed position, that is, at a stationary position. The movable pulleys 35 and 36 are vertically placed and are rotatably held by the holding frames.
A stopper 38 is fixed near the fixed pulley group 30 between the fixed pulley group 30 and the moving pulley group 31. The distance between the holding frame of the moving pulley group 31 and the stopper 38 in a fixed state determines the stroke (stroke) of the moving pulley group 31.
Thus, the wires 2 and 3 are wound around the pulley below the fixed pulley 33 from the striking mechanism portion Sa and guided to the moving pulley 35, and the moving pulley 35 is wound around from below to the fixed pulley 33. It is hung on the pulley above the fixed pulley 33 and led to the moving pulley 36, and the moving pulley 36 is hung from the upper side to the lower and guided to the fixed pulley 34, and hung below the fixed pulley 34 and further extended. Is done.
(Retraction mechanism 7)
The pull-back mechanism 7 is arranged in a fixed state in conjunction with the moving pulley group 31 of the moving pulley mechanism 6 at a back position (z direction) in the base 5. That is, the pullback mechanism 7 includes a tension member 41 that is pulled out with a predetermined force from a pullback device 40 of the pullback mechanism 7. Engage and perform a retraction action with a retraction force to the movable pulley group 31.

Other members Wheels (not shown) are attached to the lower base of the base 5 of the main hitting practice apparatus S as necessary. The wheel can adopt a mode in which it can enter and exit from the base 5.
Thereby, this practice apparatus S can be moved easily.

(Installation of this batting practice device S)
The batting practice device S takes a portable form and is also an assembly type, and the batting practice device S is assembled.
That is, for the frame mechanism, the main column 10 is assembled and erected on the base 5, the side inclined column 11 and the rear inclined column 12 are fixed to the main column 10, and the column frame 4 and the base 5 are formed. Assemble the frame mechanism.
In use, the batting practice device S is installed on a predetermined flat surface G such as a floor.

(Operation of this batting practice device S)
The ball ball hitting training apparatus S having the above-described configuration performs the following operations. 1 to 3 show a stopped state of the striking ball 1 in the apparatus S (this is referred to as “constant state”), and FIG. 10 illustrates an operating state of the striking ball 1 in the apparatus S (this is referred to as “moving state”). Indicates.
In a fixed state, the upper and lower wires 2 and 3 on the hitting ball stationary holding surface in the hitting mechanism portion Sa are pretensioned by the pullback mechanism 7 via the upper and lower wire systems, and the hitting ball stationary holding surface. Due to the three-dimensional arrangement, the striking ball 1 held by the wires 2 and 3 stably holds the stopped state.
This stable state immediately stops when the stop from the return operation in the dynamic state, and exhibits a special effect.

When a trainee hits the hitting ball 1 with a bat for hitting practice, the hitting ball 1 jumps out in the vector direction (i direction) of the hitting force with the hitting force.
In the hitting mechanism portion Sa, the upper and lower wires 2 and 3 are fed out following the hitting ball 1 in response to the hitting of the hitting ball 1 forward. The guide rollers 22 and 23 suppress rapid swinging of the wires 2 and 3.
In the return mechanism section Sb, the wires 2 and 3 are fed out together with the movement of the movable pulleys 35 and 36 between the fixed pulley group 30 and the movable pulley group 31. The movement of the movable pulleys 35 and 36 toward the fixed pulleys 33 and 34 (in the z direction) resists the pulling force of the pulling device 40 of the pulling back mechanism 7 by the feeding force of the wires 2 and 3, via the tension member 41. It is done.
The movement of the movable pulleys 35 and 36 is decelerated by the pullback force of the pullback device 40, stops, and immediately thereafter receives the pullback force of the pullback device 40 and returns toward the pullback mechanism 7.
Along with the operation of the return mechanism section Sb, the hitting ball 1 at the hitting mechanism section Sa stops in the air and then immediately flies back toward the initial position. In this reverse flight, the wires 2 and 3 are smoothly pulled back into the apparatus S by the guide action of the guide rollers 22 and 23.
When the hit ball 1 reaches the vicinity of the initial position, it receives a pulling force from three directions and does not cause any special shake, and immediately stops at the original position.

(Effect of this hitting practice device S)
According to this batting practice device S, the arrangement of the striking ball 1 can be realized on the inclined surface by adopting a specific frame mechanism from the support frame 4 and the base 5, and the functional part within the base 5 can be realized. A certain motion mechanism part (blow mechanism part Sa, return mechanism part Sb) is accommodated, and the whole apparatus can be reduced in size and made portable.
Further, the striking ball 1 can maintain a stable stationary state by receiving tensile forces in three directions up and down across the striking ball 1 in the striking mechanism portion Sa of the apparatus S. This state is naturally exerted in the constant state, and even if an external force such as a strong wind is applied, it does not sway, and the moving state also quickly returns to the original stationary position after the return movement of the hit ball 1. And exhibits great damping.

(Effect of the frame structure of this embodiment)
In this embodiment, the main column 10, the side inclined column 11 and the rear inclined column 12 constitute a column frame 4 as a column frame structure. The side inclined column 11 and the rear inclined column 12 are inclined to have an appropriate length and inclination. By adopting the angle, the main pillar 10 can be arranged in a free inclination. Further, the eccentric distance at the tip of the main pillar 10 can be made as large as possible.
And the horizontal extension part 13 as an additional body raises the freedom degree of arrangement | positioning of a functional member, and the convenience is high.

  The present invention is not limited to the embodiment described above, and various design changes can be made within the scope of the basic technical idea of the present invention.

  S ... Ball practice device for ball game, G ... Base surface, 4 ... Column frame, 5 ... Base, 10 ... Main column, 11 ... Side inclined column, 12 ... Back inclined column, 13 ... Horizontal extension (additional body)

Claims (1)

A main pillar having a predetermined length that is erected at a predetermined inclination angle, with its bottom surface set on the base surface;
Side inclined struts that are arranged on the sides of the main pillars, and that have bottom surfaces that are also grounded on the base surface, and whose upper ends are fixed at positions below the intermediate part of the main pillars or the intermediate part,
It is arranged behind the main pillar, and similarly comprises a bottom inclined bottom on the base surface and an upper end of the middle pillar of the main pillar or a rearward inclined post fixed at a position lower than the middle part.
A strut frame structure characterized by that.