• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    ABSTRACT A pluralíty of electromagnetic valves are mounted on a manífold base, asingle top cover that covers the plurality of electromagnetic valves as a whole ismounted, the top cover is screwed into the manifold base in a state in which apositioning pin on a lower end of a peripheral wall is fittecl into a small hole in themanifold base, a reínforcing ríb is formed on an inner face of a top plate of the topcover, the rib is arranged so that the rib is brought into contact With the upperfaces of the electromagnetic valves all the time or is brought into contact with theelectromagnetic valves When the top cover is elastically deformed by a pressing force from the outside acting on the top cover. 16
    公开号:SE1150666A1
    申请号:SE1150666
    申请日:2011-07-13
    公开日:2012-01-31
    发明作者:Takashi Murakami；Shinji Miyazoe
    申请人:Smc Corp；
    IPC主号:
    专利说明:

    IO DESCRIPTION TITLE OF INVENTIONMULTIPLE MANIFOLD VALVE BACKGROUND OF THE INVENTION[ll FIELD OF THE INVENTION The present inventíon relates to a multiple manifold valve in which aplurality of valves are mounted on an integrabtype manifold base in an airtightmanner and particularly to a multiple manifold valve suitable for use in food- related processors which need to maintain good hygiene. [2] DESCRIPTION OF THE RELATED ARTHitherto, as multiple manifold valves used in food-related processors whichneed to maintain good hygiene, a multiple manifold valve has been known inwhich a plurality of valves are mounted on an integral-type manifold base, andeach valve is indivídually covered by a top cover and constituted in an aírtightmanner so as to withstand Washing by high-temperature and highpressure steamjet or the like. In this type of manifold valves, due to the necessity of vvashingafter use, the top cover capable of withstanding washing is individually providedto cover each valve on the manifold base, but not only that it is disadvantageous inlight of a manufacturing cost but also in order to suppress collection of sewage,Water and the like in a space between the adjacent top covers, a certain gap needsto be ensured between the adjacent top covers, Which obstructs size reduction ofthe entire manifold valve.In order to solve such problems, the top covers Which cover the multiple valves can be formed as a single top cover so that the single top cover can cover all the plurality of valves arranged close to each other in an airtight manner, but since the cover needs to be formed by a transparent or translucent synthetic resinor the like so that a flashing state of an operation indicator lamp of each valvecontained therein should be able to be visually checked, if the top cover is formedhaving a large size so that the top cover can cover the entire multiple valves bythe synthetic resin, which is not sufficíently strong, the strength should bereinforced by various means such as an increase in the thickness so as to addstrength that can Withstand washing by high-temperature and high-pressuresteam j et and other various considerations to the configuration of the top cover,and in the end, even if the top cover Which covers the multiple valves is made intoa single one, though it is effective for the size reduction of the manifoid valve, it is doubtful how much the manufacturing cost can be improved.
    BRIEF SUMMARY OF THE INVENTION A technical object of the present invention is to provide a multiple manifoldvalve whose reinforcement effect is improved by using a single top cover that cancover the entire multiple valves without giving the top cover itself sufficientstrength that withstands Washing by high-temperature and high-pressure steamjet by allowing the multiple valves to compensate for a part of the strength.
    In order to achieve the above object, according to the present invention, amultiple manifold valve formed by mounting multiple valves on a manifold baseand by wrapping the multiple valves with the top cover in a sealed state isprovided.
    The multiple valves are formed by a plurality of electromagnetic valves, andthe top cover is an integrabtype cover that covers the entire multiple valvesmounted on the manífold base and is formed by a transparent or translucentsynthetic resin, a plurality of positioning pins are formed on the lower ends ofperipherai walls of the top cover in a discrete state, the top cover is positioned by inserting the positioning pins into each of small holes in the manifold base, the top cover is screwed into the manifold base at a plurality of spots including at ieastthe four corners in that state, a reinforcing rib is formed on an inner face of a topplate of the top cover, and the rib is brought into contact With the upper faces ofthe electromagnetic vaives mounted on the nianifold base or is arranged above theelectromagnetic valves in a state in which such a positional relationship ismaíntained that the rib is brought into contact with the electromagnetic valveswithin a range where the top cover is elastically deforrned by a pressing force fromthe outside acting on the top cover.
    In the present invention, the ribs are preferably disposed at positions incontact with two of the adjacent electromagnetic valves astride.
    In this case, it is preferable that only one rib is brought into contact withone electromagnetic valve by arranging the ribs at every other adjacent part of theadjacent electromagnetic valves.
    Also, in the present invention, it may be so configured that on an end faceon an electromagnetic operation portion side of each of the electromagnetic valvesmounted on the manifold base and/or on an end face on the opposite side, areinforcing portion is formed which reinforces the peripheral wall of the top coverfrom inside against the inner face of the peripheral wall, a reinforcing peripheralwall rib is formed on a portion opposite the r-einforcing portion of the peripheralwall, and the peripheral wall ríb is formed in contact with the reinforcing portionof the electromagnetic valve or opposite the reinforcing portion while maintainingsuch a positional relationship of being brought into contact with the reinforcingportion of the electromagnetic valve Within a range in which the top cover iselastícally deformed by a pressing force from the outside acting on the top cover.
    The peripheral Wall ribs are preferably disposed at positions in contact withtwo of the adjacent electromagnetic valves astride.
    In this case, it is desirable that only one peripheral wall rib is brought into contact with one electromagnetic valve by arrangíng the peripheral wall ribs at every other adj acent part of the adjacent electromagnetic valves.
    Also, it may be so confígured that each of the peripheral wall ribs has a U-shaped section and two projecting rirns, and the two projecting rims areindividually brought into contact with one and the other of the adjacentelectromagnetic valves.
    In the present invention, it may be so configured that the multiple valvesmounted on the manifold base are divided into plural groups, the electromagneticvalves are closely arranged in parallel in each of the groups, a gap into which areinforcing wall can intervene is formed between the groups, and the reinforcingwall which intervenes into the gap between the groups and is brought into contactwith the manifold base is íntegrally provided on the inner face of the top cover.
    In this case, it is desirable that the reinforcing wall is formed so as to extendacross the inside of the top cover from one to the other of a pair of opposingperipheral walls, a positioning pin is formed on the lower end of the reinforcingWall, and by inserting the positioning pin into a small hole in the manifoid base,the reinforcing wall is fixed onto the manifold base.
    In the multiple manífold valve of the present invention having the aboveconfiguration, even if a pressing force for washing caused by high-temperatureand high-pressure steam jet or the like acts on the top cover, the reínforcing ríbsprojected on the inner face of the top plate of the top cover are brought into contactwith the upper faces of the electromagnetic valves Inounted on the manifold baseor the peripheral wall rib provided on the inner face of the peripheral wall of thetop cover is in contact with the reinforcing portion of each of the electromagneticvalves in advance, or even if they are not in contact, they are brought into contactwith the electromagnetic valves within a range of elastic deformation by thepressing force from the outside onto the top cover, and the strength of the topcover itself does not have to have sufficient strength to withstand an external force by the high-temperature and high-pressure steam jet or the like. lVioreover, lO dimensional accuracy of positions between the electromagnetic valves and the ríbson the inner face on the upper part of the top cover and the peripheral wall ribdoes not have to be particularly high.
    According to the manifold valve of the present invention described above indetail, while the single top cover is used to cover the entire multiple valvesmounted on the manifold base, the multiple valves can bear a part of the strengthwithout giving sufficíent strength to withstand washing by high-temperature andhigh-pressure steam jet or the like to the top cover itself, and thus, a manifoldvalve having multiple valves rnounted used in fooducelated processors requiring good hygiene can be provided With a simple structure and a low cost.
    BRIEF DESCRIPTION OF THE DRAWINS Fig. 1 is an exploded perspective view of a multiple manifold valve according to the present invention in an embodiment without some of electromagnetic valves.
    Fig. 2 is an exploded perspective view of the rnanifold valve seen fromdiagonally below.
    Fig. 8 is a plan view illustrating the inside seen through a transparent topcover of the manifold valve.
    Fig. 4 is a longitudinal sectional view at lV'IV position in Fig. 3.
    Fig. 5 is an enlarged sectional view of an essential part at V-V position in rig. s.
    DETAlLED DESCRIPTION OF THE INVENTION Figs. 1 to 5 illustrate an embodiment of a multiple manifold valve accordingto the present invention. This rnanifold valve has a multiple valve 2 formed bymounting a plurality of electromagnetic valves 3 on an integral-type manifold base 1 in a parallel state in an outline configuration and by covering the entire multiple valve 2 with a single top cover 4 made of a transparent or translucent light- permissive synthetic resin in a state air-tightly sealed by a seal member 5. The manifold base 1 has a rectangular shape When viewed on plan.
    Each of the electromagnetic valves 3 mounted on the manifold base 1 ismainly formed hy a switching valve of a known pilot-driven 3-5 port, but since a 5'port swítchíng valve is used in the illustrated example, in a mounting portion 6 ofeach of the electromagnetic valves 3 on the upper face of the manifold base 1, asknown from Fig. 1 and Fig. 4, a central supply channel 20 communicating with asupply port 10 of the electromagnetic valve 3, output channels 21a and Zlb locatedon both sides of the supply channel 20 and communicating with a pair of outputports 11a and llb of the electromagnetic valve 8, and discharge channels 22a and22b located on both outar sides of the output channels 21a and Zlb andcommunicating with a pair of discharge ports 12a and 12b of the electromagneticvalve 3 are opened in an aligned state and correspond to the ports of theelectromagnetic valve 3. The supply channels 20, the output Channels 21a and21b, and the discharge channels 22a and 22b in all the electromagnetic-valvemountíng portions 6 are disposed in a línear state in the juxtaposition direction ofthe electromagnetic valves 3, respectively, and form a supply channel row, anoutput channel row, and a discharge channel row, respectively.
    All the supply channels 20, the output channels 21a and 21b, and thedischarge Channels 22a and 2213 forrning the channel rows may be disposed at acertain interval so that, when the electromagnetic valves 3 are mounted to all themounting portions 6, all the electromagnetic valves 3 are closely disposed with noor only a slight gap formed between each other, but as in the illustrated example,the multiple valve 2 may be divided into a pluralíty of groups (See Fig. S) so that,though the electromagnetic valves 8 are closely arranged in parallel in each group,a gap 7 into which a reinforcing wall 49, which will be described later, provided onthe inner face of the top cover 4 intervene is formed between the groups and the distal end of the reinforcing wall 49 is brought into contact with the nianifold base 1 and posítíoned and fixed. The fixation of the electromagnetic valve 3 onto themanifold base 1 is accomplished by screwing and inserting a fixing screw 14 whichpenetrates the body of the electromagnetic valve 8 into a screw hole 24 dísposed inthe manifold base 1.
    On the other hand, inside the manifold base 1, a common supply path 26having a certain sectional shape with which each of the supply Channels 20communicates is disposed and located below the abovedescribed plurality ofsupply channels 20 aligned in one row and directed toward the alignmentdirection of the supply channels 20, and two common discharge paths 28a and 28b,each having a certain sectional shape with which each of the discharge channels22a and 22b communicates, are provided in parallel with the common supply path26 on both sides of the supply channels 20 and located below the pluralíty ofdischarge Channels 22a and 22b which form two channel rows.
    The output channels 21a and 21b opened in the manifold base 1 in analigned state communicate with output ports 27a and 27b opened in the lower faceof the manifold base 1 immediately below the output channels 21a and 21b andconnected to required fluid-pressure driving devices by pipíng through a pipe joint33 mounted to the output ports 27a and 27b as known from Fig. 2 and Fig. 4.Also, the common supply path 26 and the common díscharge paths 28a and 28bcommunicate with a supply port 80 and a pair of discharge ports Sla and 31bopened in the lower face of the manifold base 1 at positions not conflicting with theoutput ports 27a and 271) and are connected to an air pressure source and adischarge end by piping through a pipe joint 34 mounted to the discharge ports31a and Blb.
    Moreover, the manifold base 1 has a through hole 35 for wiring whichcontains Wiring (not shown) for electricity/control to be connected to theelectromagnetic valves 3 at a position below an electromagnetic operation portion 3a Which drives a pilot valve of each of the electromagnetic valves 3.
    Similarly to the common supply path 26 and the common discharge paths28a and 28b, the through hole 85 for vviring is constituted so as to have a certainsectional shape and to penetrate the manífold base 1 in parallel With each other.On one end of the manifold base 1, an end plate 37 is fixed by screws 39 viagaskets 38, and the common supply path 26, the common discharge paths 28a and28b, and the through hole 85 for wiring are air-tightly closed by the end plate 87,While on the other end of the manifold base 1, a terminal block 40 provided with acable terminal 40a that connects the wiring to the outside is fixed by screvvs 42 viagaskets 41, the through hole 35 for Wiring is aiirtightly closed by the terminalblock 40, and the ends of the common supply path 26 and the common dischargepaths 28a and 28b are air-tightly closed.
    The top cover 4 is of an integral type that covers the entire multiple valve 2mounted on the manifold base 1 and is formed by a transparent or translucentsynthetic resin, having a rectangular shape when viewed on plan, and a flashingstate or the like of an operation indicatoi' lamp of each electromagnetic valve 3contained in the top cover 4 can be visually recognized from the outside. Sincethe top cover 4 is large-sized so as to cover the entire multiple valve 2 and is madeof a synthetic resin, Which is not sufficiently strong, strength that can withstandwashing by high-temperature and high-pressure steam jet or the like should begiven. Thus, the top cover 4 is reinforced by using the electromagnetic valve 3firmly fixed to the rnanifold base l as Will be described below.
    That is, on lower ends of three peripheral Walls 4d to 4f among fourperipheral Walls 4c to 4f of the top cover 4, a plurality of positioning pins 4a areprojected in discrete arrangement, and by fitting and inserting the positioningpins 4a into small holes 44 disposed in the manifold base 1, the top cover 4 ispositioned, and the top cover 4 is fixed by screws 45 screwed into screw holes 46 dísposed in the manifold base l at plural spets including the four corners in that state. lO The peripheral Wall 4c located on the side of the electromagnetic operationportion Ba of each of the electromagnetic valves 3 Which constitute the multiplevalve 2 among the peripheral Walls 40 to 4f of the top cover 4 is prevented fromsliding and moving inward by contact With the end face on the electromagneticoperation portion 3a side of each of the electromagnetic valves 3, as Will bedescribed later, and is not positíoned by the positioning pin 4a, but the positioningpin can be also provided as necessary on the peripheral Wall 4c.
    The top cover 4 has one or a plurality of reinforcing ribs 47 on the inner faceof a top plate 4b thereof. The ribs 47 are in parallel with the peripheral walls 4eand 4f, and one ends of the ribs 47 reach the peripheral Wall 4c, While the otherends reach the peripheral Wall 4d. Each of the ribs 47 can be formed to such aheight that the rib is brought into contact With the pianar upper faces of theelectromagnetic valves 8 mounted on the manifold base 1 all the time but can bealso formed to such a height that the rib opposes the upper face with a slight gap.The slight gap is specifically such a gap that, When a pressing force acts on the topcover 4 from the outside in Washing of the top cover 4 by using high-temperatureand high-pressure steam jet (having specified values of 80°C, 8 to 10 MPa and thelike), the ribs 47 are brought into contact With the upper faces of theelectromagnetic valves 3 Within a range Where deformation of the top cover 4caused by the pressing force is elastic deformation, and the top cover 4 can bedisposed on the multiple valve 2 by forming each of the ribs 47 having a height sothat such a positional relationship is formed.
    In the illustrated example, as clearly shown in Fig. 5, the ribs 47 aredisposed at positions Where the ribs are brought into contact with the upper facesof two of the adjacent electromagnetic valves 8 astride and four ribs 47 aredisposed so as to be brought into contact With all the eight electromagnetic valves8. That is, in Fig. 5, by arranging the ribs 47 at every other adjacent part Where the electromagnetic valves 8 adjoin each other, only one rib 47 is brought into contact with one electromagnetic valve 8. However, the arrangement of the ribs47 is not limited by such a configuration.
    As described above, by configuring such that a part of the pressing forcefrom the outside acting on the top plate 4b of the top cover 4 is received by theelectromagnetic valves 3, the top plate 4b of the top cover 4 is reinforced by theelectromagnetic valves 3, and the strength of the top cover 4 made of the syntheticresin can be increased without making the strength of the top cover 4 itselfcounteract the external force during washing and the like.
    Also, the peripheral Walls 4c and 4d of the top cover 4 have the strengththereof reinforced by contact with the end faces of the electromagnetic operationportions Sa in the electromagnetic valves 8 mounted on the manifold base 1 and/orthe end face on the opposite side similarly to the top plate 4b. In the illustratedexample, the end face on the side of the electromagnetic operation portion Sa ofeach of the electromagnetic valves 8 is arranged opposite to the inner face of oneperipheral wall 4c of the top cover 4 as a reinforcing portion 8b that reinforces theperipheral wall 4c from the inside, peripheral Wall rihs 48 for reinforcement areformed vertically along the peripheral Wall 4c on a portion opposing thereinforcing portion Bb of the peripheral wall 4c, and by bringing the peripheralwall ríbs 48 into contact With the reinforcing portion 3b of the electromagneticvalve 8 or by opposing the rihs against the reinforcing portion Bh through a slightgap, such a positional relationship is formed that the top cover 4 is brought intocontact with the reinforcing portion 3b of the electromagnetic valve 8 within arange of elastic deformation by a pressing force onto the top cover 4 from theoutside.
    Each of the peripheral wall rib 48 is formed at a position corcresponding tothe end portion of the :reinforcing .rib 47 on the lower face of the top plate 4b andhas a U~shaped section.
    The electromagnetic valves 8 mounted on the inanifold base 1 have two or lO three positions, and the length from the end face on the side of the electromagneticoperation portion 8a to the end face on the opposite side is different depending onthe electromagnetic valve. Thus, there might be a case in which the peripheralwall cannot be reinforced by bringing the peripheral Wall ribs 48 provided on thepair of opposing peripheral walls 4c and 4d of the top cover 4 into contact with theboth end faces of the various electromagnetic valves 3. Thus, only if theelectromagnetic valve 3 having the maximum length that can be used in thismanifold valve is mounted on the manifold base 1, it is so configured that theperipheral walls 40 and 4d Which oppose each other in the top cover 4 are broughtinto contact with the ireinforcing portion Sh of the electromagnetic valve 8 forreinforcement. Thus, as described above, inward sliding movement of theperipheral wall 4c of the top cover 4 on the side of the electromagnetic operationportion 3a in each electromagnetic valve 8 is suppressed by the end of theelectromagnetic operation portion Sa side, and the positioning by using thepositioníng pin da is not provided.
    The peripheral wall ribs 48 are also disposed astride two of the adjacentelectromagnetic valves 3, each being formed to have a U-shaped section, and twoprojecting rims 48a are individually brought into contact with the twoelectromagnetic valves. Also, since the peripheral wall ribs 48 are arranged atevery other adjacent part of the adjacent electromagnetic valves 3 similarly to thereinforcing ribs 47, only one peripheral wall rib 48 is brought into contact with oneelectromagnetic valve 3, but other arrangements may be employed.
    Also, in order to have larger strength in addition to the reínforcement of thetop cover 4 by the ribs 47 and the peripheral wall ribs 48, as described above, themultiple valve 2 mounted on the manifold base 1 is divided into a plurality ofgroups, and the electromagnetic valves 8 are closely arranged in parallel in each group, but it is desirable that the gap 7 in which a reinforcing wall 49 provided on the lower face of the top plate 4b in the top cover 4 is disposed is formed between ll 3.0 the groups, and the reinforcing wall 49 which is suspended into the gap 7 andpositioned and fixed onto the rnanifold base 1 is integrally provided.
    The reinforcing Wall 49 is formed at an intermediate position of the topcover 4 so as to extend in parallel With the pair of opposing peripheral walls 4eand 4f and one end and the other end are integrally connected to one and the otherof another pair of the peripheral walls 4c and 4d, and the height of the reinforoingWall 49 is the same as those of the peripheral walls 40 to 4f.
    On the lower end of the reinforcing wall 49, a positioning pin 49a isprojected as necessary, and the positioning pin 49a can be fitted and inserted into a small hole 50 (See Fíg. 3) disposed in the rnanifold base 1.
    Reference Signs List 1 manifold base2 multiple valves3 electromagnetic valve Sa electromagnetic operation portion4 top cover 4a positioning pin 4b top plate 40, fldperipheral Wall 45 screw 44 small hole 47 rib 48 peripheral Wall rib 49 reinforcing Wall 12
    权利要求:
    Claims (9)
    [1] 1. A multiple manífold valve formed by mounting a multiple valve (2) on amanifold base (1) and by covering the multiple valve (2) with a top cover (4) in asealed state, characterized in that the multiple valve (2) is formed by a plurality of electromagnetic valves (3); the top cover (4) is of an integral type that covers the entire multiple valve(2) mounted on the manifold base (1) and is formed by a transparent ortranslucent synthetic resin; a plurality of positioning pins (4a) are formed on thelower ends of peripheral Walls (4c to 4f) of the top cover (4) in a discrete state;the top cover (4) is positioned by inserting the positioning pins (421) into each ofsmall holes (44) in the rnanifold base (1)š and the top cover (4) is screwed into themanifold base (1) at a plurality of spots including at least the four corners in thatstate; a reinforcing rib (47) is formed on an inner face of a top plate (4b) of the topcover (4), and the rib (47) is brought into contact with the upper faces of theelectromagnetic valves (3) mounted on the manífold base (1) or is arranged abovethe electromagnetic valves (8) in a state in which such a positional relationship ismaintained that the rib is brought into contact with the electromagnetic valves (3)Within a range Where the top cover (4) is elastically deformed by a pressing force from the outside acting on the top cover (4) .
    [2] 2. The multiple manifold valve according to claim 1, whereinthe rib (47) is disposed at a position in contact with two of the adjacent electromagnetic valves (3).
    [3] 3. The multiple manifold valve according to claim 2, vvherein only one rib (47) is brought into contact with one electromagnetic valve (8) 13 by arranging the rib (47) at every other adjacent part of the adjacent electromagnetic valves (3).
    [4] 4. The multiple manifold valve according to any one of claims 1 to 3, whereinon an end face on the side of an electromagnetic operation portion (3a) of the electromagnetic valve (3) mounted on the manifoid base (1) and/or an end face onthe side opposite thereto, a reinforcing portion (Sh) is formed that iceinforcesperipheral walls (4c, 4d) from the insides thereof against the inner faces of theperipheral walls (4c, 4d) of the top cover (4), a peripheral wall rib (48) forreinforcement is formed on a portion of each of the peripheral walls (4c, 4d)opposing the reinforcing portion (3b), the peripheral wall rib (48) is brought intocontact with the reinforcing portion (Sh) of the electromagnetic valve (3) or isformed so as to oppose the reinforcing portion (3b) in a state in which such apositional relationship is maintained that the rih is brought into contact With thereínforcing portion (Bb) of each of the electromagnetic valves (3) within a rangeWhere the top cover (4) is elastically deformed by a pressing force from the outside acting on the top cover (4) .
    [5] 5. The multiple manifold valve according to claim 4, Whereinthe peripheral wall rib (48) is disposed at a position in contact With two of the adjacent electromagnetic valves (3).
    [6] 6. The multiple manifold valve according to claim ö, whereinonly one peripheral wall rih (48) is brought into contact with oneelectromagnetic valve (3) by arranging the peripheral wall rib (48) at every other adjacent part of the adjacent electromagnetic valves (3).
    [7] 7. The multiple manifold valve according to claim 5 or 6, wherein 14 each of the peripheral Wall rib (48) has a U-shaped section and twoprojecting rims (48a), and the two projecting rims (48a) are brought into contact with one and the other of the adjacent electromagnetic valves (3) individually.
    [8] 8. The multiple manifold valve according to any one of claims 1 to 7, whereínthe multiple valve (2) mounted on the manifold base ( 1) is divided into aplurality of groups, the electromagnetic valves (3) are closely arranged in parallelin each group, a gap (7) in which a reínforcing wall (49) can intervene is formedbetween the groups; andon the inner face of the top cover (4), the reínforcing wall (49) intervening inthe gap (7) between the groups and brought into contact with the manifold base (1) is integrally provided.
    [9] 9. The multiple manifold valve according to claim 8, whereín the reinforcing wall (49) is formed so as to extend across the inside of the topcover (4) from one to the other of a pair of opposing peripheral walls (4c, 401), aposítíoning pin (49a) is formed on the lower end of the reinforcing wall (49), and byinserting the positioníng pin (49a) into a small hole (50) in the manifold base (1), the reinforcing Wall (49) is fixed onto the rnanifold base (1).
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    优先权:
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