JPS637187Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a tatami floor fixing device used in a vertical tatami mating machine.

(Prior art) A device for fixing a tatami bed placed on a tatami stand tatami floor placement part with a tatami tightening member and by piercing a plurality of tatami fixing needles from the bottom side of the tatami bed is as follows: Kimiaki Sane
This method has been proposed in Japanese Patent Publication No. 38-6945 and Japanese Patent Publication No. 11480-1980.

(Problems to be solved by the invention) Although each of the above-mentioned technologies has certain advantages, if the tatami floor is only tightened with the tatami stand and tatami tightening member, the tatami will not be properly sewn and cut. May move.

For this reason, although the tacking needle is inserted, a cam, a link, etc. are used as the needle movement mechanism, which complicates the structure and makes it very difficult to operate.

In particular, recently there has been development and research in the industry to determine the size of tatami mats using numerical control, and in order to cope with these technologies, two-stage tightening of temporary and final tightening of the tatami floor is required. However, this has not been possible with conventional techniques.

This invention allows you to fine-tune the position by lightly pressing the tatami floor without inserting a needle into the tatami floor when it is temporarily tightened.
It is an object of the present invention to provide a fixing device for a tatami floor that can be completely fixed by piercing the tatami floor with a needle and strongly tightening the tatami floor in the final tightening state.

(Means for solving the problem) The technical means taken by the present invention to achieve the above-mentioned purpose are characterized by the tatami stand 2 and the tatami tightening member 5.
are movable up and down relative to each other, so that the tatami bed T can be tightened and released freely at the upper and lower facing portions of the tatami stand 2 and the tatami tightening member 5, and a plurality of needles 15 are inserted from the bottom side of the tatami bed T. In the device for fixing the tatami floor T, there are
A guide member 3 having a vertical guide portion 3A is fixed, and a pair of left and right columns 4 having threaded portions 4B are provided on the guide portion 3A of the guide member 3 so as to be movable up and down. A tatami tightening member 5 is installed via a cylinder 6 screwed into the threaded part 4B of 4 so as to be able to move up and down by screw feeding, and a tatami bed T is stuck into the bottom side of the tatami stand 2 from the bottom side. A needle attachment body 13 having a plurality of fixing needles 15 is fixed to and constructed on a pair of left and right columns 4, and a drive source 8 is provided that allows the tatami tightening member 5 and the pair of left and right columns 4 to move vertically relative to each other. The point is that

(Function) When the drive source 8 is driven forward, the tatami tightening member 5 is moved downward by the screw feed of the cylindrical body 6 screwed into the threaded part 4B, and is placed on the placement part of the tatami stand 2. Press down lightly on the tatami floor T (see Figure 2).

In the state shown in FIG. 2, the tatami floor T is not fixed, so the position of the tatami floor T can be finely adjusted according to the size of the tatami mat.

Furthermore, when the drive source 8 is sequentially driven, the tatami floor T is tightened by the tatami mat tightening member 5 and the tatami stand 2, and the tatami mat tightening member 5 cannot be lowered after that. The pillar 4 is raised by screw feeding, and as it rises, the needle 15 of the needle attachment body 13 installed between the pillars 4 is pierced from the underside of the tatami bed T, completely fixing the tatami bed T (the first (See Figure 3).

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

Reference numeral 1 designates a pair of legs, and a channel-shaped tatami stand 2 is installed between the legs 1 on a horizontal plane, and the upper surface of the tatami stand 2 is used as a placement part for the tatami floor T.

Reference numeral 3 designates vertical guide members, which are provided on both sides of the tatami floor placement portion of the tatami stand 2, and in this example, the guide members 3 have a U-shaped cross section that is fixed to the tatami stand 2; It is configured to have a guide portion 3A on the vertical line.

4 is a support, and a straight portion 4 is inserted into and supported by the guide portion 3A of the guide member 3.
A and a screw portion 4B, and is movable up and down and extends in the vertical direction.

Reference numeral 5 denotes a channel-shaped tatami tightening member, which is installed so as to be relatively movable between the threaded portions 4B of the pillars 4, and corresponds to the tatami stand 2 above and below, and tightens the tatami floor T at the upper and lower facing parts. It is said to be free.

That is, each threaded portion 4B of the pillar 4
A cylindrical body 6 having worm teeth 6A on its outer periphery is fitted with a screw, and a mat tightening member 5 is installed horizontally on the support 4 with the cylindrical body 6 sandwiched from above and below.

In addition, an elastic body 7 such as sponge or rubber is attached to the lower surface of the tatami tightening member 5 according to the length of the tatami floor T.

Reference numeral 8 denotes a drive source, which in this example is a motor capable of forward and reverse rotation, and is capable of rotating the shaft 10 via the winding body 9 .

The shaft 10 is rotatably supported by a bearing bracket 11 along the mat tightening member 5, and threaded portions 12 formed on the shaft 10 are engaged with the worm gears 6A of the cylindrical body 6, respectively.

Reference numeral 13 denotes a needle attachment body, which is supported by being attached at both ends with bolts 14 or the like between the straight portions 4A at the lower end of the pillar 4, and this needle attachment body 13 has a sharp needle protruding vertically upward. 15
are attached via a plurality of bolts 24, etc., and an insertion portion 25 for the needle 15 is formed in the tatami stand 2.

Reference numeral 16 denotes a control section, which has a tightening operation section 16A, a loosening operation section 16B, and a stop operation section 16C, is provided on the tatami tightening member 5, and is electrically connected to the drive source 8.

Reference numeral 17 denotes a temporary tightening detection means, which includes a lever 19 pivotally supported on the tatami mat tightening member 5 so as to be able to swing around a fulcrum 18, a detection section 20 provided at one end of the lever 19, and a detection section 20 provided at one end of the lever 19. It consists of a spring 21 biased to protrude downward from the elastic body 7, a switch 22 turned on and off by a lever 19, and the like.

Note that a window or cutout 23 for the detection means 17 is formed in the elastic body 7.

Therefore, in this embodiment, when the tatami floor T on the tatami stand 2 is pressed once in the state shown in FIG. As the worm teeth 6A are rotated via the screw 12, the tatami tightening member 5 is relatively lowered on the threaded part 4B of the support column 4, and the detection part 20 touches the tatami floor T as shown in FIG. By pushing up the lever 19 against the lever 21, the switch 22 is turned off and the drive source 8 is stopped.

The state shown in FIG. 2 is a temporary tightening state, and the position of the tatami floor T can be finely adjusted in this state.

The tightness of this temporary tightening can also be adjusted by adjusting the strength above and below the detection unit 20.

If you continue to press the operation part 16A from the temporary tightening state, the drive source 8 rotates sequentially, the tatami tightening member 5 tightens the tatami floor T with the tatami stand 2 to a certain pressure, and when the predetermined tightening is completed, the tatami tightening member 5 cannot be lowered, the pillar 4 is relatively raised while being supported by the guide member 3, and the needle 15 is raised via the needle attachment body 13 installed between the pillars 4, and tightens the tatami floor T. In this state, you will be able to pierce it from the bottom side.

When the needle attachment body 13 hits the lower surface of the tatami stand 2 and cannot rise any further, the tatami tightening member 5 descends again and tightens the tatami floor T, and the tatami floor T is tightened with the needles 15 stuck in it. After that, the drive source 8 stops due to a timer expiration or the like, and the operating part 16A is released.

In addition, in order to release (open) the tatami floor T, push the loosening operation part 16B and continue to rotate the drive source 8 in the reverse direction, the support 4 descends until the needle attachment body 13 hits the guide member 3, and the needle 15 Since the needle attachment body 13 is prevented from descending any further when it comes out of the floor T, the tatami tightening member 5 rises, and when the lift stop switch is activated, the drive source 8 is stopped, and the drive source 8 is stopped. It becomes possible to take out.

(Advantages of the device) According to this device, instead of fixing a support post with a screw part to the tatami base, the support post is provided with a guide part that is fixed to the tatami base and can move up and down freely, so the length (height) of the support post can be shortened. The tatami tightening member is attached to the top side of the tatami base via a cylindrical body that is screwed into the support post, and the needle attachment body with needles is attached to the bottom side of the tatami base. Therefore, when the drive source is started and stopped,
Both the tatami fastening member and the needle attachment are capable of moving up and down relative to one another.

For this reason, after making fine adjustments by lightly pressing the tatami bed on the tatami stand with the tatami tightening member, with the tatami bed sandwiched between the tatami tightening member and the tatami stand, the needle should be inserted from the bottom side of the tatami bed. The tatami floor can be completely and accurately fixed by piercing the tatami, the tatami will not move during the sewing and cutting work of the tatami, and the tatami can be sewn to the correct size.

In addition, in order to completely secure the tatami floor between the tatami tightening member and the tatami stand, the needle is inserted from the underside of the tatami floor, so there is no damage to the tatami mat. This is advantageous as a tatami sewing machine.

Furthermore, since the pair of left and right columns are movable up and down on the guide portion of the guide member fixed to the tatami stand side, the relative up and down movement of the tatami tightening member and the needle attachment body installed on these columns can be accurately performed. .

Therefore, the present invention is very useful as a tatami floor fixing device that has a simple structure and is easy to operate.

[Brief explanation of drawings]

The drawings show embodiments of the invention, and are shown in FIGS. 1 to 3.
The figure is a partially omitted front view showing the order of work steps, FIG. 4 is a view taken along the line D--D in FIG. 1, and FIG. 5 is a partially enlarged view of FIG. 4. 2... Tatami stand, 3... Guide section, 4... Support, 5...
... Tatami tightening member, 8 ... Drive source, 13 ... Needle attachment body, 15 ... Needle.

Claims (1)

[Scope of Claim for Utility Model Registration] The tatami stand 2 and the tatami tightening member 5 can be moved vertically relative to each other, and the tatami floor T can be tightened and released at the upper and lower facing portions of the tatami stand 2 and the tatami tightening member 5. In addition, in the device for fixing the tatami floor T by piercing the tatami floor T from the lower surface side of the tatami floor T with a plurality of needles 15, the vertical guide portion 3A is provided on the tatami stand 2 sides on both sides of the tatami floor placement portion. A guide member 3 is fixed, and a pair of left and right columns 4 having threaded portions 4B are fixed to the guide member 3.
A tatami tightening member 5 is provided on the upper surface side of the tatami stand 2 so as to be movable up and down in the guide portion 3A of the tatami mat stand 2, and a tatami tightening member 5 is provided on the upper surface side of the tatami stand 2 through a cylinder 6 screwed into the threaded portion 4B of the support column 4 and is movable up and down by screw feeding. A plurality of needles 1 are constructed and fixed to the lower surface of the tatami stand 2 by piercing the tatami floor T from the lower surface.
A needle attachment book 13 having a needle attachment book 13 having a diameter of 5 is fixed to a pair of left and right columns 4, and is provided with a drive source 8 that allows the tatami tightening member 5 and the pair of left and right columns 4 to move vertically relative to each other. A fixing device for the tatami floor in a tatami sewing machine.