JPH0745245Y2 - Partition body tensioning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a partition body tensioning device for tensioning a partition body such as a net used for volleyball, tennis and the like.

[Problems to be solved by conventional techniques and devices]

2. Description of the Related Art Conventionally, for example, a net device used for volleyball, tennis, etc. (hereinafter referred to as a conventional example) has two upper and lower cords stretched at a predetermined interval (usually the upper side is a wire and the lower side is a wire). (Rope) a net body is stretched, the left end of the wire is fixed to the left column, the right end of the wire is attached to the right column via the pulley provided on the right column, and the attached wire end Is fixed to a wire winding ratchet gear rotatably provided on the right support, and the net is stretched between the left and right supports by rotating the gear. After tightening the net body in the tensioned state, fasten each to the left and right struts).

In the case of such a conventional example, if the wire is continuously used repeatedly, almost the same position of the wire on the right support side always comes into contact with and engages with the pulley, so that the position is bent and the wire is pulled from that part. The problem of breaking occurs.

Further, in the conventional example, after the wire is fixed to the left column, it is indispensable to lift the right end of the wire up to the pulley position provided on the upper part of the right column and lock the wire to the pulley. The work of locking the pulley is very troublesome because the wire and the net body have a certain weight and the position of the pulley is high.

The present invention provides a partition tensioning device that is very easy to attach a net and can be used in a durable manner without fear of breaking the wire.

[Means for Solving the Problems]

 The gist of the present invention will be described with reference to the accompanying drawings.

A suitable partition body 3 in which fastening string bodies 4 are connected to both ends of the right support 1,
The fastening string body 4'on the left side of the fastening string body 4 is fastened to the left strut 2, and is wound by the winding device 6 attached to the right strut 1. A take-up member 5 to be taken up is provided, and the tip of the take-up member 5 is constructed so as to be led out to the outside of the right strut 1. The lead-out portion of the take-up member 5 to the outside of the right strut 1 and the fastening cord body 4 are provided. The present invention relates to a partition body tensioning device, characterized in that a fastening string body 4 ″ on the right side is connected in a detachable manner.

[Action]

Pull out the tip end of the winding member 5 from the right support 1, and at the lower position, the fastening string body 4 ″ on the right side of the winding member 5 and the fastening string body 4 ″.
, And the winding member 5 is wound by the winding device 6 to stretch the partition 3 between the right column 1 and the left column 2.

〔Example〕

The drawings show the case in which the present invention is applied to a net device for volleyball, and the structure thereof is as follows (therefore, in this embodiment, the partition body 3 is a net body).

For the right column 1 and the left column 2, the elevating cylinders 1b and 2b having the bottom plates 24 having the screw holes 10 formed in the base cylinders 1a and 2a are fitted, and the screw rod 8 is attached to the bearing plate 7 attached to the base cylinders 1a and 2a. The bearing is erected, the horizontal bevel gear 9 is provided under the screw rod 8, and the lifting cylinder 1 is attached to the screw portion 8 ′ of the screw rod 8.
A rotary cylinder 12 with a vertical bevel gear 11 that meshes with the horizontal bevel gear 9 is rotatably provided on the peripheral surfaces of the base cylinders 1a, 2a by screwing the screw holes 10 of b and 2b. By inserting the handle 14 into the through hole 13 of 12 and rotating the handle 14, the screw rod 8 is rotated,
This is a structure in which the elevating cylinders 1b, 2b are provided so as to be movable up and down with respect to the base cylinders 1a, 2a.

A cap 15 is fitted on the upper part of the elevating cylinder 2b, and locking rods 16 are welded to the inner peripheral upper and lower two places.

Reference numeral 17 in the figure is a bearing ring.

A winding device 6 for winding a roller chain as a winding member 5 is installed in the elevating cylinder 1b. The winding member 5 is not limited to the roller chain, and it goes without saying that any member such as a wire may be used. Further, the winding device 6 may have any structure as long as it can wind a roller chain, a wire, or the like as the winding member 5, and the device may be installed in the elevating cylinder 1b or in the right column 1. You may attach it.

FIGS. 4 and 5 show a first example of the winding device 6, and FIG. 6 shows a second example of the winding device 6.

First, the first example will be described. Gears 18 and 19 are rotatably provided above and below the elevating cylinder 1b, and a roller chain connected to the right end 4 ″ of the fastening cord body 4 (wire in the drawing) is connected to the gears 18 and 1.
The structure is such that it is locked to 9 and hangs down inside the elevating cylinder 1b.

In the figure, reference numeral 20 is a ratchet claw, reference numeral 52 is a ratchet gear,
Reference numeral 21 is a mounting plate, reference numeral 22 is a guide roller, reference numeral 49 is a guide rod, reference numeral 23 is a spring, reference numeral 50 is an interval holding rod, and reference numerals 51, 5 are provided.
Reference numeral 3 is a rotating shaft, reference numeral 54 is a fitting hole into which the handle 55 is fitted, reference numeral 56 is a fastening rope, reference numeral 57 is a locking hook, and reference numeral 59 is a handle insertion hole.

Therefore, when the winding device 6 of the first example is adopted, when the roller chain is pulled into the elevating cylinder 1b, the ratchet gear 52 and the ratchet pawl 20 engage with each other to make a clicking sound and the gear 19 rotates. , The roller chain is pulled into the lifting cylinder 1b, so that the net body is stretched in a tensioned state,
When the engagement between the ratchet pawl 20 and the ratchet gear 52 is released, the roller chain can be freely pulled out from the elevating cylinder 1b.

Therefore, in the first example, since the right end of the wire is not drawn into the right strut 1 and is not wound, it is possible to reliably avoid the problem of breakage of the fastening string body 4 that the conventional example has and to pull out the roller chain sufficiently. If it is braided, the right end of the wire and the left end of the roller chain can be connected at a low position, and the net can be stretched very easily.

Next, a second example will be described. The mounting plate 21 is installed in the elevating barrel 1b.
Are installed opposite each other at a predetermined interval, and the rotation shaft tube is installed between the mounting plates 21.
25 is installed, and the winding drum 26 is fitted on the rotary shaft cylinder 25.

A slide cylinder 27 in which the spring 23 is fitted is inserted into the rotary shaft cylinder 25, and the rotary shaft cylinder 25 and the slide cylinder 27 are screwed to each other near the right end portion in FIG.

A large-diameter hole 28 and a small-diameter hole 29 are bored in the rotary shaft cylinder 25 so as to face each other in the vertical direction.

A flange portion is provided on one side (the left side in FIG. 6) of the inner hole 26 'of the winding drum 26, and a groove is formed at a position facing the flange portion.
31 is formed.

Large upper and lower holes 28 of rotary shaft tube 25 and elongated holes 30 of slide tube 27
A large-diameter pin 32 is inserted into the and, and a small-diameter hole pin 33 is inserted into the upper and lower small holes 29 of the rotary shaft cylinder 25 and the elongated hole 30 of the slide cylinder 27.

The spring 23 is held by a large diameter pin 32 and a small diameter pin 33.

Guide bushes 34 and 35 are fitted on the rotary shaft cylinder 25, and a flange body protruding inward is provided on the guide bush 35 on the right side in FIG. 6, and this flange body has a small diameter. A concave groove 58 into which the pin 33 is fitted is formed.

A ratchet pawl that meshes with a ratchet tooth 37 ′ of a ratchet gear 37 in a rotation-stopped state via a key 36 on the rotary shaft cylinder 25.
38 is pivotally attached to the mounting plate 21 so as to be opposed to the ratchet gear 37.

Reference numeral 39 is a fitting hole into which the handle 55 is inserted, reference numeral 40 is a retaining ring, reference numeral 41 is a snap ring, and reference numeral 42.
Is a roller chain locking projection, chain locking recess, code 43
Is a restriction ring that restricts the left-right movement of the winding drum 26, reference numeral 44 is a restriction body that restricts the left-right movement of the roller chain, reference numeral 45 is a locking screw, reference numeral 46 is a pressing spring, and reference numeral 47 is the front-back movement of the roller chain. The regulating rod to be regulated, reference numeral 48 is the mounting plate 21.
Is a support rod that supports the inside of the elevating cylinder 1b.

Therefore, when the winding device 6 of the second example is adopted, the following operational effects are exhibited.

When the handle 55 is inserted into the fitting hole 39 and the handle 55 is rotated, the slide cylinder 27 rotates, and the slide cylinder 27 is screwed into the rotation shaft cylinder 25.

When the slide cylinder 27 is screwed in, the spring 23 presses the large-diameter pin 32, and the large-diameter pin 32 is fitted into the concave groove 31 of the winding drum 26 (this state is shown in FIG. 6). 26 and the large diameter pin 32 are integrated, and as the slide cylinder 27 is rotated by the handle 55, the roller chain locked by the roller chain locking convex portion 42 of the winding drum 26 is sequentially drawn into the lifting cylinder 1b. Go.

Since the rotating shaft cylinder 25 is provided with a ratchet mechanism including a ratchet gear 37 and a ratchet pawl 38, a winding drum.
26 reversals do not occur.

Next, when the handle 55 is rotated in the reverse direction, the large diameter pin 32 separates from the concave groove 31 due to the pressing force of the spring 23, the small diameter pin 33 is fitted into the concave groove 58, and the winding drum 26 rotates. The moving shaft cylinder 25 is in a free state.

Therefore, the roller chain can be freely pulled out from the elevating cylinder 1b.

Therefore, when the second example is used, the same operational effect is obtained when the first example is used.

[Effect of device]

Since the present invention is configured as described above, the right side fastening cord body is not bent, and the right side fastening cord body is prevented from being broken, and the partition body is stretched. At this time, the work procedure of once pulling out the tip of the winding member from the right support, connecting the fastening string body on the right side to the winding member at the floor position, and then tensioning the partition body As in the conventional example, it is not necessary to lock the heavy net fastening string (wire) to the pulley on the top of the right column at a high position, so the partitioning work can be performed more efficiently. It is possible to provide an excellent partition body tensioning device.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a front view of this embodiment, and FIG. 2 is a cross-sectional view of a main part with a part of the right or left support post cut away 3 is a cross-sectional view of the main part of the left support column according to the present embodiment, FIG. 4 is a cross-sectional view of the main part of the right support column according to the present embodiment, and FIG. 5 is a flat view of the right support post according to the present embodiment. A sectional view and FIG. 6 are sectional views of a main part of a right column according to another example. 1 ... right column, 2 ... left column, 3 ... partition, 5 ... fastening string, 4 '... left fastening string, 4 "... right fastening string, 5 ... ... Winding member, 6 ... Winding device.

 ─────────────────────────────────────────────────── ─── Continuation of front page (71) Applicant 999999999 Kinji Asano 2901 Tsukioka, Sanjo City, Niigata Prefecture (72) Creator Yoshiki Asano 3-5 Minamishinpo, Sanjo City, Niigata Prefecture (72) Creator Ryojiro Asano Niigata 6-8 Minamishinbo, Sanjo-shi, Japan (72) Inventor Kinju Asano 2 Yoshida, Sanjo-shi, Niigata (72) Inventor Kinji Asano 2901 Tsukioka, Sanjo-shi, Niigata (56) References 21766 (JP, U) Actual public Sho 62-2074 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. An appropriate partition body 3 in which fastening cord bodies 4 are continuously provided at both ends is stretched between a right support column 1 and a left support column 2, and a fastening cord on the left side of the fastening cord body 4. The body 4 ′ is fixed to the left support 2, while a winding member 5 that is wound by the winding device 6 attached to the right support 1 is provided, and the tip of the winding member 5 can be led out of the right support 1. This winding member 5
The partition body tensioning device, characterized in that the lead-out portion to the outside of the right strut 1 and the right side fastening cord body 4 ″ of the fastening cord body 4 are detachably connected.