JPH0736560Y2 - Belt stretcher - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt tensioning device for supporting a seat such as a chair or a sofa (hereinafter simply referred to as a chair) and for tensioning a belt for giving elasticity to the seat. It is a thing.

[0002]

2. Description of the Related Art Conventionally, in order to tension a belt, one end of the belt is stapled to a frame of a chair, and then the belt is manually pulled to a frame opposite to the frame, and the latter frame is stapled. Stop the belt and disconnect the extra belt.

[0003]

[Problems to be Solved by the Invention]
It requires a considerable amount of force to stretch the belt, and you must pull the belt strongly with one hand while using the stapler with the other hand.When you stretch multiple belts, the elasticity of each stretched belt It is easy to make a difference, and it requires strength and skill to attach.

An object of the present invention is to provide a tensioning device which requires almost no force and skill for tensioning the belt and which can be easily and evenly tensioned by anyone.

[0005]

Means for Solving the Problems Two frame rods, each of which is provided with a plurality of holes and which are substantially parallel to each other, are provided with a right-angled or obtuse-angled bent portion at one end of each of the parallel portions. A rod is attached between the frame rods near the base of the curved portion of the frame rods, a hole of the frame rod is selected, another rod body is attached between the frame rods, and a handle is attached to the other end of the frame rods. . The curved portion of the frame rod is formed from both ends of the U-shaped member, and the ends of the U-shaped member are suspended from each end of the frame rod at right angles or obtuse angles with respect to the frame rod. It may be attached and formed.

[0006]

Embodiments of the present invention will be described with reference to the drawings. Two frame rods 1 and 2 having a plurality of holes 3 and bent portions 4 at right angles or obtuse angles at the ends are made to face each other in parallel, and a rod 5 is fixed in the vicinity of the bent portions 4 by sharing a screw 5. A rod body 9 is detachably attached with screws 10 between the holes 3 and 3 of the frame rods 1 and 2 facing each other, and a handle 6 is fixed with screws 7 between the other ends of the frame rods 1 and 2. The frame rods 1 and 2, the rod bodies 8 and 9, and the handle 6 are
It may be made of any material such as metal, synthetic resin and wood.

Instead of the curved portion 4, a U-shaped member 4a
The ends of the U-shaped member 4a are brought into contact with one ends of the frame rods 1 and 2 at a substantially right angle or an obtuse angle and fixed with screws 5, and a grip 6 is provided between the other ends of the frame rods 1 and 2. May be fixed with a screw 7, and the rod 8 may be fixed by sharing the screw 5 between both ends of the U-shaped member 4a.

The interval between the opposing frames 1 and 2 is determined by the width of the belt. It is preferable to make the interval between the frames 1 and 2 a little wider in advance so that the belts can be shared even when the widths of the belts are slightly different. Also, depending on the width of the belt,
The U-shaped member 4a, the rod bodies 8 and 9, and the handle 6 having different lengths may be replaced.

Since the width of the belt is often narrower than the fist width of the hand, it is preferable to bend the ends of the frames 1 and 2 on the side where the handle 6 is attached to make the width between the frames wider than the fist width. .

The U-shaped member 4a may be attached to the frames 1 and 2 by welding or bonding, or the U-shaped member 4a and the frames 1 and 2 may be integrally formed.

Both ends of the U-shaped member 4a may be fixed inside or outside the frames 1 and 2.

One of the handle 6 and the rods 8 and 9, or
All tubes may be attached and fixed to the frames 1 and 2.

The attachment structure of the handle 6 is not limited to that shown in FIGS. 1 and 2, but as shown in FIG. 6, the end portions 1a, 2a of the frame bars 1 and 2 are bent and united. The handles 6a, 6a may be provided in the united portion.

When this tensioning device is used, as shown in FIG. 3, one end of the belt 13 is fixed to the upper part of the chair frame 11 with the staples 14, and the upper part of the opposite chair frame 12 is placed outside. The inner edges of both ends of the curved portion 4 or the U-shaped member 4a are brought into contact with each other, and the handle 6 is laid down toward the inner direction between the chair frames 11 and 12, that is, toward the chair frame 11. In this state, the belt 13 having one end locked to the chair frame 11 is attached to the rod 9
The rod body 8 and then the rod body 8 is wound from above and passed under the belt and above the rod body 9, and then the rod body 9 is wound and again the rod body 8 is wound.
The belt 13 is passed through the tensioning tool before coming into contact with the frame 12 so that the belt 13 is pulled out from below. After passing the belt 13 through the tensioning device, the tip of the belt 13 may be brought into contact with the frame 11 and the belt 14 may be locked to the frame 11 by the staple 14.

Depending on the degree of elasticity of the belt 13, the holes 3 of the frames 1 and 2 are selected to predetermine the attachment position of the rod 9 to the frames 1 and 2. The larger the distance between the rods 9 and 8 is, the stronger the belt 13 can be pulled.

In the state of FIG. 3, while holding the handle 6 with one hand and holding the vicinity of the point A of the belt 13 with the other hand, the chair frame 12 with the inner edges of both ends of the curved portion 4 or the U-shaped member 4a as a fulcrum. Rotate the tether outwards. FIG. 4 shows a state in which the handle 9 is rotated by about 90 degrees, and FIG. 5 is rotated by about 270 degrees.
Shows a state in which the abutment is brought into contact with the outside of the chair frame 12. Belt 1
Since 3 is almost fixed by the rods 8 and 9, it is pulled with a desired tension in the state of FIG. In this state, while pushing the handle 6 against the chair frame 12 with one hand, the belt 13 is locked to the chair frame 12 using a stapler at a position where the belt 13 is in contact with the upper portion of the chair frame 12, and the extra belt 13 Disconnect.

An elastic cushioning material may be provided at a portion of the curved portion 4 or the U-shaped member 4a that abuts the chair frame 12.

[0018]

The rod bodies 8 and 9, the bending portion 4 and the U-shaped member 4a of the tensioning tool fix the frames 1 and 2 in parallel at a desired interval.

The rods 8 and 9 wind the belt 13 so that the belt 13 is almost fixed, and the belt 13 is pulled by the rotation of the frame rods 1 and 2.

The inner edge of the curved portion 4 and the inner edges of both ends of the U-shaped member 4a come into contact with the upper end corner of the frame of the chair, and serve as a fulcrum when the frames 1 and 2 rotate to facilitate rotation.

The frames 1 and 2 support the rods 8 and 9, the curved portion 4, the U-shaped member 4a, and the handle 6, and function as an armature when rotating.

[0022]

[Effect] The belt tensioning device according to the present invention is easy to handle and does not require skill, and anyone can tension the belt on the chair with a slight tension by a slight force. It is also possible to change the degree of tension and tension depending on the elasticity of the belt.

[Brief description of drawings]

FIG. 1 is a perspective view of a belt stretcher.

FIG. 2 is a perspective view of a belt tensioning device.

FIG. 3 is an explanatory diagram showing a state in which a belt is attached to the belt tensioning device.

FIG. 4 is an explanatory view showing a state in which the belt tensioning tool is rotated by about 90 degrees.

FIG. 5 is an explanatory view showing a state in which the belt tensioning tool is rotated by about 270 degrees.

FIG. 6 is a perspective view of a handle portion of the belt tensioning device.

[Explanation of symbols]

 1 frame bar 1a end part 2 frame bar 2a end part 3 hole 4 curved part 4a U-shaped member 5 screw 6 handle 6a handle 7 screw 8 bar body 9 bar body 10 screw 11 chair frame 12 chair frame 13 belt

Claims (2)

[Scope of utility model registration request] 1. Two frame rods, each of which is provided with a plurality of holes and which are all or mostly parallel, are formed with a right-angled or obtuse-angled curved portion at one end of each of the parallel portions. A rod is attached between frame rods near the base of the curved portion, a hole of the frame rod is selected, another rod is attached and fixed between the frame rods, and a handle is attached to the other end of the frame rod. Belt stretcher. 2. The curved portion of the frame rod is composed of both ends of the U-shaped member, and both ends of the U-shaped member are perpendicular to the frame rod at one end of each of the frame rods. The belt tensioning device according to claim 1, wherein the belt tensioning device has an obtuse angle and is mounted by suspension.