JP3277617B2 - Soft sheet holding rack - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to hold a flexible thin plate such as a printed wiring board so as not to bend or deform.
The present invention relates to a soft thin plate holding rack having a large degree of freedom with respect to the size of a thin plate.

[0002]

2. Description of the Related Art Conventionally, thin plates such as printed wiring boards are shown in FIGS.
As shown in FIG. 8, it is transported and stored using various holders. That is, the first transport / storage method is, as shown in FIG. 6, a method in which the printed wiring boards 8, 81 are leaned on the locking grooves 92 of the rack 90. Note that, in the figure, reference numeral 91 denotes a grip.

As shown in FIG. 7, a second method of transporting and storing is to hook a clip 94 with a spring into a positioning hole 82 of a printed wiring board 8 and suspend the printed wiring board 8 on a clip frame 93. It is. In the third method, as shown in FIGS. 8 and 9, the periphery of the printed wiring board 8 is
This is a method of carrying, storing, and the like by sandwiching the sheet 5 and the holding body 96. In FIG. 8, reference numeral 97 denotes a hinge connecting the frame body 95 and the holding body 96.

[0004]

However, the above prior art has the following problems. That is, in the first transport / storage method shown in FIG. 6, the relatively thick printed wiring board 8 is curled due to bending of the distal end portion 80. In addition, the relatively thin printed wiring board 81 is bent as a whole,
It comes into contact with the nearby printed wiring board 81 or the rack 90.

In the second transport / storage method shown in FIG. 7, the operation of fixing the printed wiring board 8 to the clip 94 with a spring is complicated. Further, there is a disadvantage that the thin printed wiring board 81 is damaged by the biasing force of the spring. The third method shown in FIGS. 8 and 9 requires a frame 95 for each thin plate, and the work of sandwiching the printed wiring board 8 by the sandwiching body 96 is complicated. In addition, since the frame 95 must be replaced every time the size of the printed wiring board 8 is different, workability is poor.

SUMMARY OF THE INVENTION In view of the problems of the prior art, the present invention holds a soft thin plate such as a printed wiring board so as not to bend or deform, and provides a flexible thin plate having a large degree of freedom with respect to the size of the held thin plate. It is intended to provide a holding rack.

[0007]

According to the present invention, a pair of right and left clamp frames for sandwiching the left and right ends of a thin plate from the front and rear, and a shaft mounted between the two clamp frames to adjust an interval between the two clamp frames. A holding rack of a soft thin plate having a shaft and
The clamp frame penetrates all the holding frames, a plurality of holding frames arranged in the front-rear direction for holding the ends of the thin plate from the front and rear, a connecting member for connecting the holding frames so as to be able to approach and separate from each other, A holding shaft for tightening the holding frame so as to press the thin plate.

The most remarkable point in the present invention is that the holding rack has a pair of clamp frames for sandwiching the left and right ends of the thin plate, and an adjusting shaft extends between the two clamp frames. The shaft is configured so that the distance between the clamp frames can be adjusted. The clamp frame includes a plurality of holding frames for holding the thin plate, a connecting member for connecting the gap between the holding frames so as to be adjustable, and a tightening shaft for tightening the thin plate held by the holding frame. That is.

The connecting member includes, for example, a ring-shaped body having a long hole formed therein, and there is an engagement method of slidably engaging a locking portion provided on each holding frame with the long hole of the ring-shaped body. . Then, the tightening shaft is tightened, and the locking portion is slid along the elongated hole to adjust the distance between the holding frames.

[0010] The above-mentioned locking portion includes, for example, a shaft having a head having a diameter larger than the elongated hole and a slide shaft having a diameter smaller than the elongated hole. Then, the slide shaft is inserted into the long hole, and the head is made to protrude from the long hole, so that it can be locked to the ring-shaped body.

Further, it is preferable that the holding frame is configured to have a non-slip elastic member such as rubber at a holding portion for holding the thin plate. This is because, by providing the gripper with the non-slip elastic member, the thin plate is not damaged, and the thin plate is hard to slip through.

[0012]

In the holding rack according to the present invention, the distance between the left and right clamp frames can be adjusted by the adjusting shaft. Therefore, the interval between the clamp frames can be adjusted according to the length of the thin plate in the left-right direction. That is, the degree of freedom with respect to the width of the thin plate is large. Further, by increasing the interval between the clamp frames after holding the thin plate, tension can be applied to the thin plate, so that the thin plate is unlikely to be bent or deformed.

The distance between the holding frames for holding the thin plate can be approached or separated by a connecting member. Therefore,
Even if the thickness of the thin plate changes, it can respond flexibly, and the degree of freedom for the thickness of the thin plate is large. Further, by arranging a large number of holding frames, a large number of thin plates can be held at the same time. Even if the number of the holding frames changes, the thin plate can be pressed and held at once by tightening the tightening shaft, so that the number of working steps per sheet can be reduced.

Further, the degree of freedom with respect to the vertical length of the thin plate to be held is large. This is because the gripping portions for the left and right ends of the thin plate can be gripped and movable in at least one position in the vertical direction, and therefore the degree of freedom for the size of the thin plate to be held in the vertical direction is large. As described above, according to the present invention, it is possible to provide a holding rack for a soft thin plate such as a printed wiring board that holds a flexible thin plate without bending or deformation and that has a large degree of freedom with respect to the size of the thin plate to be held. Can be.

[0015]

【Example】

First Embodiment A soft thin plate holding rack 10 according to an embodiment of the present invention will be described with reference to FIGS. In this embodiment, as shown in FIGS. 1 to 3, a pair of right and left clamp frames 20 for sandwiching the left and right ends of a printed wiring board 8 which is a soft thin plate from front and rear.
And the two clamp frames 20 are supported by a shaft.
A holding rack 10 for a printed wiring board 8 having an adjustment shaft 11 capable of adjusting an interval W between them.

The clamp frames 20 hold eleven ends of the printed wiring board 8 from front and rear, and are connected to the holding frames 211 to 213 arranged in the front-rear direction so as to be close to and separated from each other. Connecting member 22 (FIGS. 3 and 4)
And a tightening shaft 25 that penetrates all the holding frames 211 to 213 and tightens the holding frames 211 to 213 so as to press the printed wiring board 8.

As shown in FIG. 4, the connecting member 22 is a ring-shaped body 220 having a long hole 221. In the long hole 221 is provided a locking portion 24 provided on each of the holding frames 211 to 213. It is slidably engaged, and the locking shaft 25 is tightened to slide the locking portion 24 along the elongated hole 221 to adjust the interval δ (FIG. 4) between the holding frames 221 to 223.

Hereinafter, each will be described in detail. The soft thin plate in this example is the printed wiring board 8. As shown in FIGS. 1 and 2, the holding rack 10 of the present embodiment has a pair of right and left clamp frames 20 and four adjustment shafts 11 which support the clamp frames 20 at four points, that is, up, down, front and rear. .

The clamp frame 20 has eleven holding frames 211 to 21 capable of holding ten printed wiring boards 8.
As shown in FIG. 3, adjustment shafts 11 are attached to the upper and lower sides of the holding frames 211 and 213 at the front end and the rear end. Then, as shown in FIG.
At the upper and lower portions of the 213, a locking portion 24 that engages with a ring-shaped body 220 as a connecting member 22 that connects between the adjacent holding frames 211 to 213 is attached.

As shown in FIG. 4, the ring-shaped body 220 has a long hole 221, and the locking portion 24 is engaged with the long hole 221. The locking portion 24 has a large-diameter head 241 protruding from the elongated hole 221 and an engagement shaft 242 sliding in the elongated hole 221. The diameter of the engagement shaft 242 is smaller than the hole width d of the elongated hole 221 (FIG. 4), while the diameter of the head 241 is larger than the hole width d.

Further, the clamp frame 20 is composed of
213 has a tightening shaft 25. As shown in FIGS. 1 and 3, the tightening shaft 25 has a through shaft 251 having male threads at both ends and a tightening cap 252 having a female screw screwed with the through shaft 251.

As shown in FIGS. 1 and 2, the adjusting shaft 11 for adjusting the interval between the right and left clamp frames 20 includes a knob 111 for rotation and a main shaft 1 having a male screw at a tip end portion 112.
It consists of 10. The male screw of the tip 112 of the main shaft 110 is screwed with the female screw of the holding frames 211 and 213, and the knob 111 can be rotated to adjust the distance W between the clamp frames 20.

Next, the operation and effect of this embodiment will be described. In the holding rack 10 of this example, first, the tightening shaft 25
By loosening the tightening cap 252 of the
The printed wiring board 8 is inserted between the holding frames 211 to 213 by widening the interval δ (FIG. 4) between 11 and 213.

Subsequently, the tightening cap 252 is tightened, so that the printed wiring board 8 can be held between the holding frames 211 to 213 to be firmly held. Finally, the knob 111 of the adjustment shaft 11 is turned in a direction to widen the interval W between the clamp frames 20, so that an appropriate tension (tensile force) can be applied to the printed wiring board 8.

As described above, since the holding rack 10 can hold the printed wiring board 8 by giving an appropriate tension, the printed wiring board 8 is not loosened or deformed. Also, the distance W between the clamp frames 20 and the holding frame 2
The interval δ between 11 and 213 is adjustable, and the upper and lower widths of the printed wiring board 8 are not particularly limited.

Further, by increasing or decreasing the number of the holding frames 211 to 213, the number of the printed wiring boards 8 that can be held on the holding rack 10 can be freely increased or decreased. As described above, according to the present embodiment, a soft thin plate such as a printed wiring board is held so as not to bend or deform, and the degree of freedom in the size of the held thin plate is large. A soft thin plate holding rack having a large degree of freedom can be provided.

Embodiment 2 This embodiment is another embodiment in which the structure of the connecting member 23 is changed in Embodiment 1 as shown in FIG. As shown in FIG. 5, the connecting member 23 of the holding rack 10 of this embodiment
A pantograph-shaped connecting member 23 attached to upper and lower portions of the holding frames 211 to 213.

The connecting member 23 is constituted by four arms 231 forming a parallelogram connected by a pair of surroundings. A pair of opposed rotating shafts 23 among the four rotating shafts 232 and 233 connecting the four arms 231.
2 are attached to the adjacent holding frames 211 to 213, respectively. The other pair of rotation shafts 233 is not fixed anywhere. As a result, the holding frames 211 to 213
Is changed by expansion and contraction of the connecting member 23. Others are the same as in the first embodiment.

[Brief description of the drawings]

FIG. 1 is a plan view of a holding rack according to a first embodiment.

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is an enlarged view around a connecting member according to the first embodiment.

FIG. 5 is an enlarged view around a connecting member according to a second embodiment.

FIG. 6 is a perspective view of a conventional holding rack for printed wiring boards.

FIG. 7 is a perspective view of another conventional printed wiring board holding rack.

FIG. 8 is a front view of another conventional printed wiring board holding rack.

FIG. 9 is a perspective view of FIG. 8;

[Explanation of symbols]

 10. . . Holding rack, 11. . . Adjustment axis, 20. . . Clamp frame, 211-213. . . Clamping frame, 22, 23. . . Connecting member, 220. . . Annular body, 221. . . Long hole, 24. . . Locking part, 25. . . 7. Tightening shaft, . . Printed wiring board,

Continuation of the front page (56) References JP-A-4-30552 (JP, A) JP-A-3-286548 (JP, A) JP-A-4-199846 (JP, A) JP-A-2-224356 (JP) JP-A-2-271645 (JP, A) JP-A-60-182735 (JP, A) JP-A-3-209845 (JP, A) JP-A-4-251956 (JP, A) 3-177094 (JP, A) Actually open 1988-162536 (JP, U) Actually open 1987-70437 (JP, U) Actually open 1987-142843 (JP, U) Actually open 1-176935 (JP, U U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65G 1/00 537 H05K 13/02 H05K 7/14

Claims (4)

(57) [Claims] 1. A soft type having a pair of left and right clamp frames for sandwiching the left and right ends of a thin plate from front and rear, and an adjusting shaft which extends between the two clamp frames and can adjust an interval between the two clamp frames. A holding rack for holding a thin plate, wherein the clamp frame includes a plurality of holding frames arranged in the front-rear direction for holding the ends of the thin plate from front and rear, and a connecting member for connecting the holding frames so that they can approach and separate from each other; And a tightening shaft for penetrating all the holding frames and tightening the holding frames so as to press the thin plates. 2. The connecting member according to claim 1, wherein the connecting member is a ring-shaped body having a long hole, and a locking portion provided on each holding frame is slidably engaged with the long hole. Tighten the shaft and slide the locking part along the long hole,
A holding rack made of a soft thin plate, wherein a distance between holding frames is adjusted. 3. A holding rack for a soft thin plate according to claim 1, wherein the holding frame has a non-slip elastic member such as rubber at a grip portion for holding the thin plate. 4. A rack for holding a soft thin plate according to claim 1, wherein the soft thin plate is a printed wiring board.