JPH052299Y2 - - Google Patents

Description

[Detailed Description of the Invention] A. Purpose of the Invention [Industrial Application Field] The present invention relates to a ribbon winding device of a ribbon type tightening device suitable for tightening and fixing a frame-like object such as a picture frame.

[Prior Art] A loop-shaped ribbon that is wound around an object to be fastened, such as a picture frame, and a winding device that winds up the ribbon are provided, and by winding the ribbon with the winding device, the ribbon is Therefore, a tightening device that tightens the object to be tightened with uniform tightening force has been proposed.

[Problem to be solved by the invention] From the viewpoint of operability, functionality, etc., it is desirable for the ribbon winding device of the above-mentioned tightening device to wind up the ribbon loop from both sides at the same time. It is desirable to be able to easily adjust the overall length of the loop to accommodate larger and smaller loops.

B. Structure of the invention [Means for solving the problems] In order to solve the above problems, the invention has the following structure.

That is, the ribbon winding device according to the present invention has the following features:
A ribbon winding device of a ribbon type tightening device used for tightening and fixing picture frames, etc., which has a first winding shaft to which one end of the ribbon is locked, and a first winding shaft to which the other end of the ribbon is locked. a second winding shaft, and a winding mechanism that rotates both winding shafts individually, and the ribbon coming out from the second winding shaft is slidable with respect to the first winding shaft. and when the first winding shaft rotates, the first winding shaft is engaged with the first winding shaft so as to be wound up, and is unwound to the outside via the first winding shaft. It is characterized in that it forms a loop that can be expanded and contracted with one end that is locked to the first winding shaft.

[Function] One end of the ribbon is locked to the first winding shaft, and the intermediate portion is slidably held to form a loop of the ribbon between the end and the intermediate portion. The end portion is locked onto a second winding shaft, and the excess ribbon on the side of the end portion is wound onto the second winding shaft.

When the loop is wound around the object to be fastened and the first winding shaft is rotated in a predetermined winding direction, the ribbon in the loop portion is simultaneously wound onto the first winding shaft from both sides. Therefore, the winding speed is high and a strong tightening force can be obtained, and the amount of deviation between the object to be tightened and the ribbon is small, and effective tightening can be performed.

When the ribbon loop is pulled in the opposite direction to the tightening direction, the spare ribbon wound around the second winding shaft is unwound through the first winding shaft, and the loop becomes larger. . Further, when the second winding shaft is rotated in a predetermined winding direction, the ribbon in the loop portion is wound onto the first winding shaft via the first winding shaft, and the loop becomes smaller.

[Examples] Examples shown in the drawings will be described below.

This tightening device 1 consists of a winding device 2 having a ribbon winding mechanism inside, a loop-shaped cloth ribbon 3 that is unwound from the winding device, and a plurality of corner guide tools 4,... .

In the winding device 2, the inside of the case 10 is partitioned into two upper and lower chambers 14 and 15 by a middle plate 11 and a bottom plate 12, and the lower chamber 15 has a first winding shaft 17 and a second winding shaft. 18 is provided, and its transmission mechanism is housed in the upper chamber 14. The first winding shaft 17 is provided with a vertically divided slit 20 for locking one end of the ribbon 3 and slidably guiding the middle part of the ribbon 3, and the second winding shaft 18 A vertically divided slit 21 is provided for locking the other end of the ribbon 3.

The base 17a of the first winding shaft is protruded into the upper chamber 14, and the first gear 2, which is a ratchet wheel, is attached to it.
A cylindrical handle shaft 2 with a handle 4 integrally formed at its lower end.
The handle shaft 25 has a square rod-shaped end 25a protruding from the case 10.
The handle knob 27 is fitted so as not to be freely rotatable.
The handle shaft 2 is secured by a screw 28.
5 can move up and down along the bearing portion 10a, and a spring-type engagement member 30 provided at the bottom of the bearing portion
By engaging the handle with one of three annular grooves 31, 32, 33 engraved on the outer periphery of the handle shaft 25, the handle can be moved to one of three positions, as shown in FIG.
When the handle shaft 25 is in the first position, the handle shaft 25 and the first
The handle shaft 25 is spline-coupled with the first winding shaft 17 so that the rotation of the handle shaft 25 is transmitted to the first winding shaft 17.
At any other position, the spline connection is released and the two are free to rotate relative to each other.

On the other hand, the base portion 18a of the second winding shaft is supported within the upper chamber 14, and a second gear 37 is integrally formed on the outer peripheral portion of the base portion 18a. This second gear 37 meshes with the first gear 24 when the handle shaft 25 is in the position, and when the first gear 24 rotates in the winding direction
The gear 37 rotates in the winding direction Y.

Further, on the side of the second winding shaft 18, a ratchet lever 40 is provided which engages with the teeth of a first gear 24, which is a ratchet wheel, when the handle shaft 25 is in the position. The ratchet lever 40 is rotatably attached to a pin 41 fixed to the intermediate plate 11, and is biased in a predetermined direction by a helical spring 43 while being restricted from rotating by a stopper 42. Due to the action of these ratchet mechanisms, the first gear 24 can only rotate in the direction of arrow X when the handle shaft 25 is in the position.

The center of the front surface of the case 10 is formed as a corner holding part 50 cut out at right angles in plan view, and ribbon outlet ports 51 and 5 communicating with the lower chamber 15 are provided on both sides of the corner holding part 50.
1 is provided. Ribbon passages 52, 52 are formed at the back of the ribbon outlet, and cylindrical guide rods 53, 53 are erected on both sides of the intersection of the two passages. Note that the notch angle α of the corner holding portion 50 does not necessarily have to be 90 degrees. Also,
There are recesses 5 for fixing on the left and right rear parts of the upper surface of the case 10.
4,54 are provided.

The method of mounting the ribbon 3 is as shown in FIG. 4. One end 3a is locked into the slit 21 of the second winding shaft, and the ribbon 3 is wound onto the second winding shaft 18 by an appropriate length. The intermediate portion 3b unwound from the ribbon roll on the second winding shaft side is passed through the slit 20 of the first winding shaft, and is let out from one of the winding ports 51 to form a loop shape. It is drawn into the case 10 from the other outlet, and the end 3c opposite to the end 3a is locked in the slit 20 of the first winding shaft.

The corner guide tool 4 has three angle pieces 6.
0, . . . are arranged radially, and corner holding portions 61 (1, 2, 3) are formed at intervals between the respective angular pieces. In the case of the embodiment, the angles β ₁ , β ₂ , and β ₃ of each corner holding portion are 90°, 120°, and 135°, respectively. Ribbon grooves 62, . . . are formed along the longitudinal direction of each of the angular pieces 60, . At the upper end of the ribbon groove 62, protrusions 63, 63 for preventing the ribbon fitted into the ribbon groove from falling off are provided, projecting from both sides. Since the corner guide tool 4 is made of an elastic material, the space between the convex portions 63, 63 can be expanded as necessary.

Next, the usage will be specifically explained.

For example, a rectangular picture frame 72 as shown in FIG.
When used for tightening and fixing the vertical frames 70, 70 and horizontal frames 71, 71 at the corner portions, as shown in FIG.
The corner guide tools 4, . . . are attached so that the ribbons fit into the grooves 62, 62 on both sides of the corner holding portion 61 (), respectively. In addition, the winding device 2
, leave the handle knob 27 in the pushed position. Then, apply the corner holding parts 61, . . . of each corner guide tool and the corner holding part 50 of the winding device to the corners of the frame 72,
When the handle knob 27 is rotated in the winding direction X, the ribbon of the loop portion is wound around the first winding shaft 17, and the frame 72 is tightened. At this time, since both ends of the loop portion are wound up at the same speed from the left and right outlets 51 (L, R), the winding speed is fast and a strong tightening force is obtained. There is little misalignment between the ribbon 71 and the ribbon 3, and the tightening condition is good. Incidentally, at the same time as the ribbon in the loop portion is wound up, the ribbon being wound around the second winding shaft 18 is also wound around the first winding shaft 17.

When using this tightening device 1, use the fixing recesses 54, 54 to tighten the shear vise 75, 75.
If the winding device 2 is fixed on the base 76, the flatness of the frame 72 can be strictly maintained, which is desirable. At this time, since the handle knob 27 of the winding device 2 is provided at the top of the device, it is convenient to perform the winding operation.

If the loop is to be made larger, it is sufficient to pull the ribbon on the side of the outlet 51 (L), and the ribbon wound around the second winding shaft 18 is sequentially let out through the slit 20 of the first winding shaft 17. It goes down. Conversely, if you want to make the loop smaller, pull the handle knob 27 to the pulled position. Then, the first gear 24 and the second gear 37 mesh with each other, so by turning the handle knob 27 in the X direction in this state, the second take-up shaft 18 rotates in the Y direction, and the ribbon in the loop portion moves through the slit 20. The film is wound up on the second winding shaft 18 one after another.

The corner angle is 120, like a regular hexagonal picture frame.
If the angle of the corner is 135 degrees, it is sufficient to insert ribbons into the grooves on both sides of the corner holding part 61 (2).
If the corner holding part 61(3) is held at a certain angle, ribbons may be inserted into the grooves on both sides of the corner holding part 61(3). In some cases, the corner guide 4 may not be used.

Furthermore, since the ribbon is flexible, it can also tighten objects with curved or irregularly shaped outer peripheries.

C. Effect of the invention As is clear from the above explanation, the ribbon winding device according to the present invention can wind up the loop of ribbon wound around the object to be fastened simultaneously from both sides, so the winding speed is Fast and strong tightening force can be obtained, the amount of deviation between the ribbon and the object to be tightened is small, and effective tightening can be performed, and the overall length of the loop can be easily adjusted. It can be easily adapted to the size of the object to be tightened, making it convenient for tightening and fixing frame-like objects such as picture frames.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an example of the tightening device according to the present invention, Fig. 2 is a plan view of the ribbon winding device, Fig. 3 is a side sectional view thereof, and Fig. 4 is a bottom view with the bottom plate omitted. , FIG. 5 is a plan view of the winding mechanism, FIG. 6 is a side view thereof, FIGS. 7 and 8 are a plan view and side view of the corner guide tool, and FIG. 9 is an explanatory diagram of an example of use. . 1...Tightening device, 2...Ribbon winding device, 3...
... Ribbon, 4 ... Corner guide tool, 10 ... Case, 17 ... First winding shaft, 18 ... Second winding shaft, 25 ... Handle shaft, 24 ... First gear,
37...Second gear, 40...Ratchet lever,
50, 61...Corner holding part.

Claims (1)

[Scope of utility model registration request] A ribbon winding device of a ribbon type tightening device used for tightening and fixing picture frames, etc., which has a first winding shaft to which one end of the ribbon is locked, and a first winding shaft to which the other end of the ribbon is locked. a second winding shaft, and a winding mechanism that rotates both winding shafts individually, and the ribbon coming out from the second winding shaft is slidable with respect to the first winding shaft. and when the first winding shaft rotates, the first winding shaft rotates.
is fed out to the outside via the first winding shaft while being engaged to be wound up by the first winding shaft;
A ribbon winding device, characterized in that the ribbon winding device forms an expandable and contractible loop with one end that is locked to the first winding shaft.