JPS6141899Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a tatami needle driving device for piercing a pin into a tatami floor stile from above the tatami surface layered on top of the tatami mat.

As a surface tensioning device for fixing the tatami face to the tatami floor with pins, a pair of left and right rails that can be tilted downward from the horizontal direction are protruded from the front end of the tatami floor support base.
A sliding bar having a fixed gripping wall on the upper surface of its rear end is supported on the rail so as to be slidable back and forth, and a movable gripping bar is placed on the sliding bar so that the movable gripping bar and the fixed gripping wall are connected to each other. It is known that the front end of the tatami mat is held between the mats (see Japanese Patent Publication No. 53-10376, Japanese Utility Model Publication No. 38104-1983, Japanese Utility Model Publication No. 104593-1983, etc.). This known tatami mat covering device places and positions the tatami mat on the tatami bed support base, extends the tatami mat over the tatami bed, and attaches a plurality of rear end portions of the tatami mat to the rear end stile of the tatami bed. It is fixed with book pins, and then the front end of the tatami mat is held between the fixed gripping wall of the sliding bar located at the rear end of the rail and the movable gripping bar, and the sliding bar is moved along the rail. Tighten the tatami mat by sliding it forward, then fold the rails downward and bend the tatami mat at right angles along the upper edge of the front end stile of the tatami bed, and then insert the front end of the tatami mat into the front end stile. It is fixed with a pin,
Tatami mats can be easily stretched with strong tension.

However, the above-mentioned known tatami lining device is
Since pins were manually inserted into the front and back stile of the tatami floor one by one, the work was troublesome and inefficient.

This invention provides a tatami needle driving device that can simultaneously drive a plurality of U-shaped pins into the entire surface of a tatami floor stile.

Examples of this invention will be described below with reference to the drawings.

In Figures 1 and 2, 1 is a tatami floor pedestal;
1a is a supporting leg of the tatami floor pedestal 1, on which a tatami floor 2 is placed, and a tatami table 3 is placed on the top surface of the tatami floor pedestal 1.
is being extended. A pair of left and right columns 4, 4 are erected on the upper surface of one end in the length direction of the tatami floor pedestal 1, and an upper shaft 5 and a lower shaft 6 are vertically parallel and rotatably supported on these columns 4, 4. be done. This upper shaft 5
has both ends protruding to the sides of the pillars 4, 4, and arms 7, 7 are respectively fixed to the protruding ends on both sides, and the above-mentioned tatami floor holder 1 is attached to the tip of this arm 7.
A piston rod 9a of a lifting fluid cylinder 9 is connected to the upper left and right sides via brackets 8, 8 so as to be swingable, and the operation of the lifting fluid cylinder 9 causes the upper shaft 5 to rotate approximately 90 degrees. It is becoming more and more common. Links 10 of the same length are located inside the pillars 4, 4 and are attached to the upper shaft 5 and the lower shaft 6 vertically parallel to each other and laterally symmetrically, and there are a total of four links in the upper, lower, left and right directions. 10
The left and right side walls 12 of a hopper 11 for loading pins are connected with pins to the tip of the hopper 11, and as the upper shaft 5 rotates, the hopper 11 maintains its vertical posture and moves between the solid line position and the chain line position 11 in FIG. Go up and down diagonally between.

The above-mentioned hopper 11 is formed in the shape of a rectangular parallelepiped box with an open upper surface and long in the width direction, and as shown in FIGS. 3 and 4, the front plate 13 and the rear plate 1
4 has an opening 13a along the upper surface of the bottom plate 15.
and 14a are drilled, respectively. On the inner surface of the rear plate 14, there are a plurality of prismatic inner guides 16 located above the opening 14a and an outer guide 1 having a U-shaped cross section surrounding the inner guides 16.
7 are fixed at appropriate intervals in the width direction, and a large number of U-shaped pins 18 are loaded into the space between the inner guide 16 and the outer guide 17 in a vertically stacked manner.
Note that the above U-shaped pin 18 has a bottom portion 18a.
Two needle parts 18b, 18b connected by a horizontal bar 18c parallel to the base part 18a are connected. On the other hand, a needle driving fluid cylinder 20 is attached to the piston rod 2 via brackets 19, 19 (see FIGS. 1 and 2) on the left and right sides of the lower front surface of the front plate 13.
The push plate holder 21 is installed with the left and right piston rods 20a facing backward, and both ends of a widthwise long push plate holder 21 are connected to the tips of the left and right piston rods 20a.
1, a plurality of push plates 22 fixed corresponding to the guides 16, 17 of the hopper 11 are slidably inserted from the opening 13a in the front surface of the hopper 11 along the bottom plate 15.

In the above structure, the hopper 11 is raised to the position shown by the solid line in FIG.
This tatami facing 3 is tensioned by known means, the ends are bent at right angles, and stacked on the stile 2a. Thereafter, when the lifting fluid cylinder 9 is operated and the piston rod 9a is retracted, the hopper 11 moves through the arm 7, the upper shaft 5 and the link 10 to the stile 2a of the tatami floor 2 as shown by the chain line 11 in FIG. The hopper 11 moves slightly forward and parallel, and stops at a position where the rear opening 14a of the hopper 11 is lowered by 15 to 30 mm from the upper surface of the tatami floor 2. And a needle driving fluid cylinder 20
is activated, the piston rod 20a is projected, and a plurality of U-shaped pins 18 located at the lowest stage of the hopper 11 are simultaneously pushed out from the hopper 11 via the push plate holder 21 and the needle push plate 22, as shown in FIG. It is driven into the stile 2a of the tatami floor 2 from above the tatami facing 3 as shown in FIG. When this driving is completed, the needle pusher plate 22 is returned, and then the hopper 11 is returned to the upper standby position.

In the embodiments described above, the upper shaft 5 can be rotated by a rack and pinion, a manual handle, or the like. Further, the lower shaft 6 may be driven instead of the upper shaft 5. Further, the hopper 11 may be raised and lowered vertically in front of the stile 2a, and in this case, a fluid cylinder, a rack and pinion, a chain transmission mechanism, etc. can be used as the raising and lowering means. Further, by using a vertical lifting mechanism in combination with the diagonal lifting mechanism as in the embodiment, it is possible to further facilitate the tensioning work of the tatami surface 3. Alternatively, the needle driving fluid cylinder 20 may be mounted in the opposite direction so that the needle driving is performed when the piston rod 20a is retracted. In addition, the needle driving fluid cylinder 20
An electromagnet may be used instead. Furthermore, the horizontal bar 18c of the U-shaped pin 18 can be omitted. Further, the tatami bed support 1 can support only the end of the tatami bed 2, and may be a small movable pedestal with wheels at the bottom. Of course, it can also be used in conjunction with a large fixed pedestal.

As explained above, this device is formed in the shape of a rectangular parallelepiped that is long in the width direction of the tatami bed pedestal above the tatami bed pedestal for supporting the end of the tatami bed, and has a large number of boxes inside. A hopper in which multiple rows of U-shaped pins are stacked and loaded is provided so that it can be raised and lowered, and a needle pushing plate for pushing out the U-shaped pins is slidably attached to the bottom of the hopper, and the hopper is lowered. As a result, a plurality of pins are pushed out from the bottom of the tatami mat in a row in the width direction by the needle pushing plate and driven into the stile of the tatami floor. Fixing work can be done extremely efficiently and easily.

[Brief explanation of drawings]

Fig. 1 is a front view of an embodiment of this invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, Fig. 3 is a horizontal sectional view of a part of the hopper, and Fig. 4 is a sectional view taken along the - line in Fig. 3. FIG. 5 is a perspective view of the tatami floor. 1: Tatami floor pedestal, 2: Tatami floor, 2a: stile, 3:
Tatami surface, 11: hopper, 18: U-shaped pin, 2
2: Needle pusher plate.

Claims (1)

[Scope of Claim for Utility Model Registration] [1] Above the tatami bed pedestal for supporting the edge of the tatami bed, a rectangular parallelepiped box shaped long in the width direction of the tatami bed pedestal is formed, and there are many inside. A hopper in which book U-shaped pins are stacked and loaded in multiple rows is provided so that it can be raised and lowered, and a needle pusher plate for pushing out the U-shaped pins is slidably attached to the lower part of the hopper. The tatami needle driving device is characterized in that a plurality of pins are pushed out in one row in the width direction from the bottom by the needle pushing plate as it descends, and are driven into the stile of the tatami floor. [2] Request for registration of a utility model in which multiple needle pusher plates are attached to a pusher plate holder that is long in the width direction, and both ends of the pusher plate holder are connected to piston rods of fluid cylinders fixed to the left and right sides of the hopper. The tatami needle driving device according to item 1. [3] Scope of Utility Model Registration Claim 1, in which the hopper is attached via parallel links to pillars erected on the left and right sides of the tatami floor pedestal, and the parallel links are swung up and down by a fluid cylinder. Or the tatami needle driving device according to item 2. [4] Any one of claims 1 to 3 for registering a utility model, in which a U-shaped pin is formed by connecting two needle parts connected at the base part with a horizontal bar parallel to the base part. Tatami needle driving device described in Crab.