JP3404593B2 - End plate for bellows fixing, bellows to which this end plate is fixed, and bellows set - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bellows fixing end plate used for attaching a bellows to a machine or a device, and a bellows and a bellows set to which the end plate is fixed.

[0002]

2. Description of the Related Art Conventionally, bellows have been used as parts constituting, for example, photographic machines and accordions.
In recent years, it has come to be used also as a component constituting a machine tool such as a laser beam machine or a welding machine. on the other hand,
Some industrial machines such as machine tools have a drive table for placing a reciprocating work piece or fixing various drive parts such as a welding part and a cutting part, As a device for driving such a drive table in a linear direction, there is a device using a linear motion device. And
Some of these linear motion devices include a guide rail and a moving body such as a drive table attached to the guide rail and reciprocating along the guide rail.
Some of the guide rails are configured as long screws that are rotated by a motor, and the movable body is configured to move in the length direction of the screws by the rotation of the screws. Further, in such a linear motion device, as a constituent element for ensuring that the moving body is smoothly reciprocated along the guide rails or the long screws, the front and back surfaces of the moving body have been lubricated conventionally. There are a fixed plate on which a grease nipple for discharging grease that is oil is arranged, and a plate on which an end seal is fixed.

However, such a structure of the conventional linear motion device is not a measure for preventing the cutting oil or cutting waste discharged from the machine or the like, or the dust of the factory from adhering to the guide rail or the like. This is sufficient, and it may not always be possible to guarantee that the moving body is smoothly reciprocated along the guide rail or the like. Therefore, conventionally, in order to solve such a problem, a bellows is attached between an end portion side of a guide rail or the like and a moving body, and the guide rail or the like is covered with the bellows, whereby the cutting oil or cutting waste, or Dust from factories is prevented from adhering to the guide rails and the like, which in turn guarantees that the moving body can smoothly reciprocate along the guide rails and the like.

[0004]

By the way, most of the bellows used as a part of such a linear motion device or other machine tools form a valley portion and a mountain portion alternately by bending a sheet body. Then, the front and back surfaces (both ends of the bellows) of the bellows body thus formed are bonded to metal or resin end plates, and the end plates are interposed therebetween,
A method is used in which one end is fixed to an end portion of a guide rail or the like and the other end is fixed to a moving body. For example, as shown in FIG. 8, one end of a bellows body 100, in which a valley portion 100a and a mountain portion 100b are alternately formed by bending a sheet body (reference numerals are omitted), has a U-shape (gate One end plate 101 formed in a U shape is fixed, and the other end plate 102 formed in a U shape (gate shape) is fixed to the other end of the bellows body 100. Then, in this fixing method, three double-sided adhesive tapes 103 are attached to the front surface (and the back surface) of the bellows body 100, and then,
In this method, the end plates 101 and 102 are attached via the double-sided adhesive tape 103. The one and the other end plates 101, 102 are formed with through holes 101a, 102a through which screws are inserted, and the bellows are provided at the end of a guide rail or the like (not shown) or in front of the moving body Or the rear surface), the through holes 101a, 102
It is fixed by a screw (not shown) inserted through a.

However, the method of attaching the end plates used to fix the bellows is extremely complicated when manufacturing a large number of bellows. Also,
In recent years, a bellows has been proposed and put into practical use, in which an intermediate plate is welded to the inside of each mountain portion formed by bending a sheet body, but an intermediate plate corresponding to each mountain portion is a component. With respect to the bellows, there is a demand for an end plate that can be attached more easily.

Therefore, the present invention has been proposed in order to solve the problem of the above-mentioned conventional end plate attached to the bellows, and an object thereof is to provide an end plate which can be attached extremely easily. It is what

[0007]

The present invention has been proposed to solve the above problems, and a first invention (an invention according to claim 1) relates to an end plate for fixing a bellows. The leg is one in which a mountain portion and a valley portion are alternately formed and expands and contracts, and one leg that is continuous from one end of the horizontal portion downward and has a mountain portion and a valley portion alternately formed and expands and contracts. For fixing the bellows fixed to the front surface or the back surface of the bellows, which has a leg portion and the other leg portion which is continuously formed downward from the other end of the horizontal portion and has a mountain portion and a valley portion alternately formed and expanding and contracting. An end plate, a horizontal plate portion formed in a shape substantially the same as a front surface or a back surface of the horizontal portion of the bellows, one vertical plate portion continuous downward from one end of the horizontal plate portion, and the horizontal plate The other vertical plate part that continues downward from the other end of the part , One insertion portion through which one leg portion forming a bellows formed on the back surface of the one vertical plate portion is inserted, and the other leg portion forming a bellows formed on the back surface of the other vertical plate portion And the other insertion portion through which is inserted.

The second invention (the invention according to claim 2)
Relates to a bellows, wherein the bellows fixing end plate is attached to at least a front surface and / or a back surface of the bellows.

The third invention (the invention according to claim 3)
Relates to a bellows set, and is composed of a sheet body, a horizontal portion that is formed by alternately forming a peak portion and a valley portion and expands and contracts, and a mountain portion and a valley that are continuous downward from one end of this horizontal portion. and a is one leg of stretching are alternately formed parts, and the other leg of the mountain portion becomes continuously downward from the other end of the horizontal portion and valleys are stretched or squeezed alternately formed, the resin And a plurality of intermediate plates each having a peripheral end fixed to each mountain portion formed on the horizontal portion, one leg and the other leg portion, and a bellows, and the bellows or the bellows as a stretching direction. The end plate for fixing the bellows according to claim 1, which is fixed to the front surface and the back surface of the bellows cut at arbitrary positions in a direction orthogonal to each other, and the front plate or the back surface side of the bellows with these end plates and an intermediate plate. And the fixing plate that holds the fixing plate between the end of the bellows and the end plate. A plurality of screws that secure the machinery across the chromatography bets, is characterized in that is housed.

The fourth invention (the invention according to claim 4)
In the above-mentioned third invention, the intermediate plate is
Each of the end plates is formed with a through hole through which a screw is inserted, and the end plate is formed with a through hole at a position corresponding to the through hole formed in the intermediate plate. .

If the end plate constituting each of the above inventions has the structure described in claim 1,
It does not matter whether the metal material is bent or the resin material is molded. That is, the one and the other insertion portions that constitute the end plate may be formed by bending a metal plate, or may be integrally formed of resin with the horizontal plate portion and the vertical plate portion. Is also good. Further, one of the one and the other insertion portions is necessarily formed in the one and the other vertical plate portions as long as it has a function of inserting one or the other leg portion forming the bellows. The present invention is not limited to this, and may have a plurality of insertion portions.

[0012]

DETAILED DESCRIPTION OF THE INVENTION An end plate and a bellows to which the end plate is attached according to an embodiment of the present invention will be described in detail below with reference to the drawings.

First, the bellows 1 to which this end plate is attached will be described. As shown in FIG. 1, the bellows 1 has a front shape formed into a substantially gate-like shape, and includes a sheet body (reference numeral is omitted) and an intermediate plate 2. The sheet body is made of synthetic leather, and has a width formed in a direction orthogonal to the expansion / contraction direction and a horizontal portion 3 in which peaks 3a and valleys 3b are alternately formed in the expansion / contraction direction, and the horizontal portion 3 One leg portion 4 is formed continuously from one end of the horizontal portion 3 and the other leg portion 5 is formed continuously from the other end of the horizontal portion 3 downward.
Then, on the one and the other leg portions 4 and 5, a mountain portion (a mountain portion and a valley portion formed on one leg portion are not shown) 5a and a valley portion 5b are formed in the expansion and contraction direction, respectively. ing. Therefore, the above-mentioned horizontal portion 3, one leg portion 4 and the other leg portion 5 are alternately formed with the mountain portions 3a,
The expansion / contraction operation is performed by 5a and the valleys 3b, 5b.

In the bellows 1 according to this embodiment, the above-mentioned intermediate plates 2 are welded to the positions corresponding to the ridges 3a and 5a, respectively. These intermediate plates 2 are integrally molded of synthetic resin, and as shown in FIG. 2, a horizontal portion 3 that constitutes the bellows 1.
The horizontal plate portion 6 whose upper end is welded to (the back surface of) the mountain portion 3a formed in the above, one vertical plate portion 7 which is continuous downward from one end of the horizontal plate portion 6, and the horizontal plate portion 6 and the other vertical plate portion 8 which is continuous downward from the other end of 6, and as shown in FIG.
One side of the one vertical plate portion 7 is welded to (the back surface of) the mountain portion 4a formed on the one leg portion 4 that constitutes the bellows 1, and one side of the other vertical plate portion 8 constitutes the bellows 1. It is welded to (the back surface of) the mountain portion 5a formed on the other leg portion 4. In addition, as shown in FIG. 2, through holes 6a and 6b into which screws described later are inserted are formed in the horizontal plate portion 6 which constitutes the above-mentioned plurality of intermediate plates 2, and the lower end of the one vertical plate portion 7 is formed. The other vertical plate portion 8
One convex portion 7a protruding in one direction is formed, and the other convex portion 8a protruding in one vertical plate portion 7 direction is formed at the lower end of the other vertical plate portion 8.

Next, the end plates attached to the front surface and the back surface of the bellows 1 having the above-mentioned structure will be described. The end plate 10 according to this embodiment is formed of a metal material, and as shown in FIG. 1 or 4, has the same front shape as each of the intermediate plates 2. That is, this end plate 10
Is a horizontal plate portion 11 having a length width substantially the same as the length width of the horizontal plate portion 6 forming the intermediate plate 2 (the length width of the front surface of the horizontal portion 3 forming the bellows 1); The vertical width of one vertical plate portion 7 which is continuous from one end of the plate portion 11 and which is the same as the height of one leg portion 4 which constitutes the bellows 1 and which constitutes the intermediate plate 2 One vertical plate portion 12 having substantially the same length and width and one leg portion 4 which is continuous from the other end of the horizontal plate portion 11 downward and has the same height as one leg portion 4 which constitutes the bellows 1. The other vertical plate portion 13 having a height and a width substantially the same as the length width of the other vertical plate portion 8 constituting the intermediate plate portion 2 is provided. On the back surface side of the one vertical plate portion 12, one insertion portion 14 through which the one vertical plate portion 7 constituting the intermediate plate 2 welded to the sheet body is inserted from the lower side to the upper side is formed. The other side plate hose of the other vertical plate portion 13 is formed with the other insertion portion 15 through which the other vertical plate portion 8 constituting the intermediate plate 2 welded to the sheet body is inserted from below to above. There is.

The one insertion portion 14 is formed by bending the one vertical plate portion 12 from one side to the back surface side, and the height thereof is higher than that of the one vertical plate portion 12. The width is made slightly shorter, and the width thereof is almost the same as that of the one vertical plate portion 12. The other insertion portion 15 is formed by bending the other vertical plate portion 13 from one side to the back surface side, and the height thereof is slightly shorter than the height of the other vertical plate portion 13. And
The width is approximately the same as that of the other vertical plate portion 13. That is, in the present embodiment, the lower ends of the one and the other insertion portions 14 and 15 are the same as the lower end positions of the one and the other vertical plate portions 12 and 13,
The upper end is more accordion 1 than the upper end position of the horizontal plate portion 11.
It is located below the same length as the length from the ridges 3a and 5a formed to the valleys 3b and 5b. In addition, in the horizontal plate portion 11 that constitutes the end plate 10,
Through holes 11a and 11b are formed at positions corresponding to the two through holes 6a and 6b formed in the horizontal plate portion 6 that constitutes the intermediate plate 2.

Next, the linear motion device 20 to which the bellows 1 is fixed by using the end plate 10 described above will be explained. In this embodiment, as shown in FIG. 1, the linear motion device 20 includes left and right support rails 21 and 22 having rails 21a formed therein, a front side support plate 23, and a back side support plate 24. , And a motor bracket 25 that faces the front side support plate 23. A drive motor 26 is fixed to the motor bracket 25, and a long drive screw 27 having a screw thread on the outer peripheral surface is fixed to the drive motor 26. One end of the drive screw 27 is rotatably supported by the front side support plate 23, and the other end is rotatably supported by the back side support plate 24. The drive screw 27 is provided with a moving body 28 that moves in the length direction of the drive screw 27 while being guided by the rail 21a. That is, in the linear motion device 20, the moving body 28 moves in the longitudinal direction of the drive screw 27 by the rotation of the drive screw 27 by the rotation drive of the drive motor 26. The left and right support rails 21 and 2 are
A guide rail 29 having a U-shaped cross section (the left guide rail is not shown) is fixed to the outer surface of 2 into which the tip side of one of the convex portions 7a and 8a of the intermediate plate 2 is inserted. ing.

Next, a method of fixing the bellows 1 to the linear motion device 20 using the end plate 10 will be described. First, the first adapter 30 is fixed to the upper surface of the front side support plate 23 constituting the linear motion device 20 by a screw or the like not shown, and the second adapter 31 is not shown on the upper surface of the rear side support plate 24. These first to third adapters 30, 31, 32, which are fixed by screws or the like and further fixed on the upper surface of the moving body 28 by screws or the like (not shown), have the same height. It is a block body and has the same length and width as the front side support plate 23, the back side support plate 24, or the moving body 28. In addition, the first adapter 30 and the second
Of the adapter 31 are provided with screw holes 30a, 30b, 31a, 31a at positions corresponding to the through holes 11a, 11b formed in the end plate 10, respectively, and the front surface of the third adapter 32 is formed. And on the back surface, screw holes 32a, 3 are provided at positions corresponding to the through holes 11a, 11b.
2b, 32c and 32d are formed.

On the other hand, on the front surface of the bellows 1, the above-mentioned end plate 10 is arranged from below the bellows 1 and one vertical plate portion 7 of the intermediate plate 2 located on the front surface of the bellows 1 is inserted into one insertion portion 14. , The other vertical plate portion 8 is inserted into the other insertion portion 15, and is attached to the front of the bellows 1. The end plate 10 is attached to the back surface of the bellows 1 in the same manner as described above. The end plate 10 attached to the front of the bellows 1
By using the fixing plate 38, a part of the horizontal portion 3 forming the bellows 1 is fixed to the fixing plate 38 and the end plate 10.
In the state of being sandwiched by and, it is fixed to the first adapter 30 using the screws 35, 35 shown in FIG. This fixing plate 38
Is formed of a metal material in an elongated rectangular shape, and has a width equal to the width of the horizontal portion 3 forming the bellows 1 and is formed in the horizontal portion 3 as shown in FIG. It has a width from the peak portion 3a to the valley portion 3b, and has two through holes 38a and 38b through which the screws 35 and 35 are inserted. That is, as shown in FIG. 5, the end plate 10 is connected to the first adapter 3
In the case of fixing to 0, the fixing plate 38 and the end plate 10 sandwich the sheet body that constitutes the bellows 1 and the horizontal plate portion 6 of the intermediate plate 2 and the screw 3
Fix with 5,35.

The method of attaching the end plate 10 to the back surface of the bellows 1 whose front surface is fixed to the first adapter 30 and the method of fixing this end plate 10 to the front surface of the third adapter 32 are the same as those described above. Bellows 1 that is the same and at the same time has end plates 10 mounted between a third adapter 32 and a second adapter 31, respectively.
The method of fixing is also the same as the method described above. By such a method, as shown in FIG. 5, the two bellows 1 and 1 which expand and contract due to the moving operation of the moving body 28 are fixed to the front side and the back side of the moving body 28 which constitute the linear motion device 20.

As described above, when fixing the bellows 1 to the linear motion device 20, the above-described method of attaching the end plates 10 to the front and back surfaces of the bellows 1 is performed by inserting the sheet body into the insertion portions 14 and 15 of the one and the other. And one of the other vertical plate parts 1 that constitute the intermediate plate 2 including a part of
This can be achieved by inserting 2 and 13. Therefore, it is possible to perform an extremely simple operation without using the double-sided adhesive tape as in the conventional case.

In the above-described embodiment, the end plate according to the present invention is shown in which the horizontal plate portion is formed with the two through holes into which the screws are inserted. However, these through holes are not necessarily horizontal. It does not need to be formed only in the plate portion, and for example, as in the end plate 40 shown in FIG. 6, two through holes 41a, 41 are formed in the horizontal plate portion 41.
b and the insertion portions 44, 45 formed in the one and the other vertical plate portions 42, 43 are made slightly shorter, and the one and the other vertical plate portions 42, 43 are formed.
Alternatively, one through hole 42a, 43a may be formed on the lower end side of 43, respectively. When such an end plate 40 is used, not only the fixing plate 38 described above but also the one and the other vertical plate portions 42 and 43 are used.
Use two fixing plates (not shown) that correspond to the length and width of

In addition, the above-mentioned end plates 10 and 4
In FIG. 0, one insertion portion 14, 15, 44, 45 is formed on each of the vertical plate portions on the one side and the other vertical plate portion, but the insertion portion forming the end plate according to the present invention is not limited to one. It is not limited to one, and for example, FIG.
Like the end plate 50 shown in FIG.
Two insertion parts 54, 55, and one vertical plate part 52, 53 continuous downward from both ends of 1 respectively.
It may be one in which 56 and 57 are formed.

Further, in the bellows 1 to which the above-mentioned various end plates (reference numerals are omitted) are attached, a large number of intermediate plates 2 are necessarily formed corresponding to the peaks 3a and 5a in the above-described embodiment. However, the bellows to which the end plate according to the present invention is attached is not necessarily limited to the bellows 1 as described above, and the above-mentioned end plate is attached to a bellows that has been conventionally manufactured, The end plate and the fixing plate may be fixed to the linear motion device by screws.

However, according to the bellows 1 described in the present embodiment, not only the shape retention of the entire bellows 1 can be maintained by the respective intermediate plates 2, but also the front side and the back side of the bellows 1 must be intermediate. Since the plate 2 is located, by using the end plate 1 and the fixing plate 38 described above, the bellows 1 can be fixed to the linear motion device 20 and the like more simply, quickly and firmly.

Since the bellows 1 is composed of the sheet body and the intermediate plate 2 as described above,
The operator can easily cut the bellows 1 at any position. That is, it is extremely easy to manufacture the long bellows 1 and cut the bellows 1 to a predetermined length in consideration of a moving stroke of a moving body that constitutes a mechanical device such as a linear motion device that fixes the bellows 1. Since the intermediate plate 2 is always located at the cut position or in the vicinity thereof and the through holes 6a and 6b are formed in all the intermediate plates 2 in the bellows 1, the screws 35 and 35 are inserted. There is no need to form a through hole for Therefore, for example, one bellows 1 sufficient for fixing to the linear motion device 20 described above, four end plates 10 described above, four fixing plates 38, and eight screws 35 form a bellows set, which is not shown. It is possible to adopt a method of storing in a packaging bag or the like for sale. A user who purchases such a bellows set cuts the bellows 1 to a length (moving stroke of a moving body or the like) corresponding to a mechanical device such as the linear motion device 20 which the user owns, and ends the end plate 10 and the fixing plate. 38 and screws 35, 35 can be used to simply and quickly secure the linear motion device 20. It should be noted that the sheet body forming the bellows 1 has screws 35, 35
Although the hole through which is inserted is not formed, the hole can be easily formed by using, for example, an awl.

[0027]

As is apparent from the above description of the embodiments of the present invention, in the end plate according to the present invention (the invention according to claim 1), a bellows is formed on the back surface of one vertical plate portion. One insertion portion is formed through which one leg portion is inserted, and the other insertion portion through which the other leg portion that constitutes the bellows is inserted is formed on the back surface of the other vertical plate portion. It can be easily and quickly attached to the front or back of the.

The second invention (the invention according to claim 2)
In the bellows according to (1), since the end plate is attached to the front surface and / or the back surface of the bellows in advance, it is possible to more quickly fix the bellows by a mechanical device such as a linear motion device.

The third invention (the invention according to claim 3)
In the bellows set according to, since the bellows including the end plate, the fixing plate, and the screw, as well as a large number of intermediate plates whose peripheral ends are fixed to the respective mountain parts, is a set,
The user can cut the bellows to a length according to the mechanical device to be fixed, and fix the bellows to the linear motion device by using the end plate or the fixing plate.

In particular, the fourth invention (the invention according to claim 4)
Since the intermediate plate is formed with a through hole through which a screw is inserted, no matter where the user cuts the bellows, the intermediate plate with all through holes is formed on the front and back surfaces of the bellows. Located in. Therefore, the work of fixing the bellows to the machine tool can be further simplified.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a bellows, an end plate and the like fixed to a linear motion device.

FIG. 2 is a front view showing an intermediate plate that is a component of a bellows.

FIG. 3 is a bottom view of the bellows.

FIG. 4 is a perspective view showing an end plate and a fixing plate.

FIG. 5 is a plan sectional view showing a state in which a bellows is fixed to a linear motion device.

FIG. 6 is a rear view showing another example of the end plate.

FIG. 7 is a rear view showing still another example of the end plate.

FIG. 8 is an exploded perspective view showing a conventional end plate and a bellows.

[Explanation of symbols]

1 bellows 2 Intermediate plate 3 Horizontal part 3a Yamabe 3b Tanibe 4 One leg 4a Yamabe 4b Tanibe 5 The other leg 5a Yamabe 5b Tanibe 6 Horizontal plate part 7 One vertical plate part 8 Other vertical plate part 10 End plate 11 Horizontal plate part 12 One vertical plate part 13 Other vertical plate part 14 One insertion part 15 Other insertion part 35 screws 38 Fixed plate 40 end plate 41 Horizontal plate part 42 One vertical plate part 43 Other vertical plate part 44 One insertion part 45 Other insertion part 50 end plate 51 Horizontal plate part 52 One vertical plate part 53 Other vertical plate part 54,55 One insertion part 56, 57 the other insertion part

Claims (4)

(57) [Claims] 1. A horizontal portion in which a mountain portion and a valley portion are alternately formed and expands and contracts, and one leg which is continuous from one end of the horizontal portion downward and in which the mountain portion and the valley portion are alternately formed and expands and contracts. For fixing the bellows fixed to the front surface or the back surface of the bellows, which has a leg portion and the other leg portion which is continuously formed downward from the other end of the horizontal portion and has a mountain portion and a valley portion alternately formed and expanding and contracting. An end plate, the horizontal plate portion having a shape substantially the same as the front surface or the back surface of the horizontal portion of the bellows, one vertical plate portion continuous downward from one end of the horizontal plate portion, and the horizontal plate The other vertical plate portion that continues downward from the other end of the portion, one insertion portion through which one leg portion that is formed on the back surface of the one vertical plate portion and that constitutes a bellows is inserted, and the other vertical plate portion Configure the bellows formed on the back of the part End plate for bellows fixed to a square and the other of the insertion portion leg portion is inserted in, that it comprises an characterized. 2. A bellows, wherein the bellows fixing end plate is attached to at least a front surface and / or a back surface of the bellows. 3. A horizontal portion which is formed of a sheet body and in which crests and troughs are alternately formed and expands and contracts, and crests and troughs which are continuous downward from one end of this horizontal part are alternately formed. and one leg of stretching is, the other leg of the mountain portion becomes continuously downward from the other end of the horizontal portion and valleys are stretched or squeezed alternately formed, is composed of a resin, the horizontal , A bellows having a large number of intermediate plates each having a peripheral end fixed to each mountain portion formed on one leg and the other leg, and this bellows or this bellows in an arbitrary direction in the direction orthogonal to the expansion and contraction direction. An end plate for fixing the bellows according to claim 1, which is fixed to a front surface and a back surface of the bellows cut at a position; and a fixing plate for sandwiching an intermediate plate with the end plate on the front side or the back side of the bellows, Machine with the above fixing plate sandwiching one end of the bellows and the end plate Bellows set a plurality of screws that secure the tool, it is characterized by comprising housed. 4. The intermediate plate is formed with through holes into which screws are respectively inserted, and the end plates are formed with through holes at positions corresponding to the through holes formed in these intermediate plates. The bellows set according to claim 3, wherein the bellows set comprises: