Utility model content
In view of the above problems, problem of the present utility model is to provide a kind of ink feed container, its can reduce not to
The surplus for the ink that ink reservoir is supplemented and remained, the ink reservoir store the ink supplied to ink jet device.
In order to solve above-mentioned problem, ink feed container of the present utility model, it supplements the ink to ink-feeding device
Water, the ink-feeding device have:Ink reservoir, it stores the ink supplied to ink jet device;Ink entry stream
Road portion, it is formed with the stream connected with the ink reservoir;And recess, it possesses the inwall of multiple circular arcs, and institute
State ink entry flow path portion to be provided projectingly to the center of the inwall of the relative circular arc, the feature of the ink feed container exists
In having:Ink accommodating portion, it accommodates the ink;And stream forming portion, it is arranged at the end of the ink accommodating portion
Portion, and internally possess the ink outlet stream connected with the ink accommodating portion, the stream forming portion possesses:Ink goes out
Mouthful, it is formed at the side opposite with the ink accommodating portion of the ink outlet stream;And valve, it goes out in the ink
The centre of mouth stream can openedly and closedly close the ink outlet stream, and the valve possesses opening portion, when the stream forming portion is inserted
Enter the recess of the ink-feeding device, and cause the stream forming portion with the ink entry flow path portion in defined position
When putting connection, the abutting of the ink entry flow path portion by entering the ink outlet stream via the ink outlet,
The ink entry flow path portion is set to be connected with the ink accommodating portion, when the stream forming portion and the ink entry flow path portion exist
As defined in described during the connection of position, at the center of the ink entry flow path portion through the ink-feeding device and link phase
To the circular arc inwall direction on, the width between the periphery wall of the stream forming portion is in the opening portion is clipped in
Between and relative valve portion between 3 times of width within, wherein, the periphery wall of the stream forming portion is gone out with the ink
Mouthful center in the axial direction in axle center at least from the ink outlet to the top of the ink entry flow path portion between it is outer
Perisporium.
According to the utility model, at the stream forming portion being arranged on the end part of ink feed container, go out from ink
Width (the stream shape between periphery wall between the position that mouth is reached to the top of the ink entry flow path portion of ink-feeding device
Into the maximum of the outside dimension in portion) when being configured at the valve of ink outlet stream of the inner side of stream forming portion and opening by opening
Portion is clipped in the middle and within 3 times of the width of relative valve portion.So, in ink feed container, ink is made to ink
The outside dimension of the stream forming portion of water feeder side outflow becomes smaller.Thus, due to that can suppress to be attached to be formed in
The amount of ink on the ink outlet stream of the inner side of stream forming portion, thus can reduce not to ink-feeding device supplement and
The surplus of the ink remained in ink feed container.
In the utility model, following setting can be carried out, i.e. the valve possesses valve body and is arranged on narrow on valve body
Seam, the valve are the ink when the stream forming portion is connected with the ink entry flow path portion in the defined position
Water inlet flow path portion enters the slit so as to possess the part of the opening portion.So, by entering ink outlet stream
The ink entry flow path portion on road abuts with valve, so as to form opening portion on valve.
In the utility model, following setting can be carried out, i.e. when the stream forming portion and the ink entry stream
The opening portion is clipped in the middle in the defined position connection and the width between the relative valve portion is by road portion
The outside dimension of the ink entry flow path portion.That is, the ink entry stream from ink outlet to ink-feeding device
Width (maximum of the outside dimension of stream forming portion) between periphery wall between the position that the top in portion is reached can be
Within 3 times of the outside dimension of the ink entry flow path portion of ink-feeding device.
In the utility model, it is preferably, the valve is arranged on from the ink outlet side of the stream forming portion
In the range of end is axially towards the ink accommodating portion side 4mm~10.3mm.If configuring valve within this range, easily in ink
The intermediate configurations valve of water out stream.Also, be readily configured to by the ink entry flow path portion entered from ink outlet and
Opening portion is formed on valve.
In the utility model, in order to reduce the outside dimension of stream forming portion, following setting can be carried out, i.e. when
When the stream forming portion is connected with the ink entry flow path portion in the defined position, filled through the providing ink
The center of the ink entry flow path portion put and link on the direction of the inwall of the relative circular arc, on the axial direction extremely
Width between the periphery wall of the stream forming portion between lacking from the ink outlet to the top of the ink entry flow path portion
Spend for 6mm~15.6mm.
Also, following setting in this case, can be carried out, i.e. the internal diameter size of the ink outlet is
7.9mm, when the stream forming portion is connected with the ink entry flow path portion in the defined position, through the ink
The center of the ink entry flow path portion of water feeder and link on the direction of the inwall of the relative circular arc, the axle
It is upward at least from the ink outlet to the top of the ink entry flow path portion between the stream forming portion periphery
Breadth Maximum between wall is 14.9mm.So, the size of stream forming portion can be provided.
In the utility model, following setting can be carried out, i.e. in the defined position, the ink entry stream
Road portion enters 8.5mm in the ink outlet stream from the ink outlet.So, it is readily configured to by going out from ink
The ink entry flow path portion that mouth enters forms opening portion on valve.
Embodiment
The embodiment of application ink feed container of the present utility model is illustrated referring to the drawings.The ink of this example
Water bottle 1 is used to supplement ink to ink Jet system 2.
(ink Jet system)
First, ink Jet system is illustrated.Fig. 1 be schematically show this example ink Jet system it is main
The stereogram of structure.As shown in figure 1, ink Jet system 2 has printer 4 (ink jet device) and ink-feeding device 5.
Printer 4 possesses the record portion 7 of printhead 6 and possesses CPU, ROM, RAM etc. control unit 8.Printhead 6 is inkjet printing
Head, it is equipped on bracket 9.Hereinafter, mutually orthogonal axis is set to X-axis, Y-axis and Z axis.In Fig. 1, by ink Jet system 2
Configuration is as defined in X-axis and Y-axis on X/Y plane.Z-direction is above-below direction.
Printer 4 possesses the casing 12 of the rectangular shape with recording sheet outlet 11 on the front surface.The He of record portion 7
Control unit 8 is contained in casing 12.In printer 4, the side for being provided with recording sheet outlet 11 is the front side of Y direction
(front), its opposite side are rear side (rear).Record portion 7 from printhead 6 to by conveying mechanism (not shown) from rear side
Recording medium 3 towards front side conveying sprays ink droplet and printed.Record portion 7 can pass through travel mechanism's (not shown) edge
X-axis moves back and forth.Ink-feeding device 5 supplies ink to printhead 6.Control unit 8 controls printhead 6, conveying mechanism, moving machine
The driving of structure and ink-feeding device 5.
Ink-feeding device 5 possesses multiple ink tanks 21 of ink reservoir and the adapter in these multiple ink tanks 21
22.Each ink tank 21 forms the width of X-direction relative to the shorter flat pattern of the length of Y direction.Multiple ink tanks 21 are along X-axis
Direction arranges.Adapter 22 overlays the front part of multiple ink tanks 21 of arrangement from top.Adapter 22 possesses along X-direction
Multiple slots 23 of arrangement.Each ink tank 21 of ink-feeding device 5 is connected with record portion 7 via ink tube 24.It is stored in ink
Ink (ink in ink tank 21) in feedway 5 is supplied to printhead 6 from ink-feeding device 5 via ink tube 24.
Fig. 2 is the exploded perspective view for the primary structure for representing ink-feeding device 5.Fig. 3 is the vertical view of ink-feeding device 5
Figure.In fig. 2, an ink tank 21 has been pulled down from adapter 22.As shown in Fig. 2 ink tank 21 possesses the can body of ink reservoir
The ink implanting needle 26 that the upper surface of 25 (ink reservoirs) and the front part from can body 25 protrudes upward along Z-direction
(ink entry flow path portion).When from X-direction, can body 25 possesses the cuboid extended in the Y-axis direction longlyer
The ledge 25b for the rectangle that part 25a and rear end part from parallelepiped body portion 25a protrude upward.Ink implanting needle 26
It is arranged on the parallelepiped body portion 25a upper surface in ledge 25b front.When from Z-direction, ink implanting needle
26 have circular profile.The outside dimension of ink implanting needle 26 is fixed.Also, ink implanting needle 26 internally possesses edge
Two streams 27 that Z-direction is extend side by side.Two stream 27 connects with can body 25 respectively.Ink tank 21 can be led via ink
Enter pin 26 and import ink from the outside of ink tank 21 to the inside of can body 25.
In this example, ink-feeding device 5 is contained in the inside of casing 12 together with printhead 6, ink tube 24, and is located at
The front side of casing 12.In addition, there is also ink-feeding device 5 to configure the situation outside casing 12.That is, providing ink dress be present
Put 5 situations about being formed with the split of printer 4.
Here, the ink being stored in each ink tank 21 is water-base ink or oily ink.As water-base ink, dyestuff be present
The dispersates such as the ink that is dissolved in Deng solute in aqueous solvent, pigment are dispersed in ink in aqueous dispersion etc..As oiliness
Ink, the ink that the dispersates such as ink, pigment that the solutes such as dyestuff are dissolved in oil-based solvent are dispersed in oiliness dispersant be present
Water.In this example, multiple ink tanks 21 accommodate the mutually different ink of color respectively.For example, multiple ink tanks 21 accommodate black respectively
Ink, yellow ink, magenta ink, cyan.In addition, the feelings of the ink of same color are accommodated there is also multiple ink tanks 21
Condition.
As shown in Figures 2 and 3, adapter 22 is located at the ledge 25b of can body 25 front and parallelepiped body portion 25a
Top.The number for the slot 23 being arranged on adapter 22 is identical with the number of ink tank 21.Each slot 23 possesses from switching
The recess 30 that the upper surface 22a of the Z-direction of device 22 is recessed downward along Z-direction.
Recess 30 has a pair of oblong depressions 32 of round-shaped circular depressions 31 and rectangular shape.The length of side
Square-shaped recess 32 extends forwards from circular depressions 31 along Y direction, and the oblong depressions 32 of opposite side are from circular depressions 31 along Y
Direction of principal axis rearward extends.As shown in figure 3, at the center of circular depressions 31, it is provided with and runs through circular logical in the Z-axis direction
Hole 33.In the state of adapter 22 is arranged in ink tank 21, the ink implanting needle 26 of ink tank 21 runs through through hole along Z-direction
33.Thus, ink implanting needle 26 turns into the state being provided projectingly to the inner side of recess 30.Therefore, each slot 23 turns into and possessed
The structure of recess 30 and ink implanting needle 26.
Ink implanting needle 26 is provided projectingly to the center of circular depressions 31.In this example, along two adjacent slots 23 of X-axis
Circular depressions 31 are connected to each other.Each circular depressions 31 possess to tilt 45 degree of relative a pair of angle relative to X-direction
The internal face 31a (inwall of circular arc) of circular arc.
On two oblong depressions 32 of each slot 23, it is respectively arranged with from the convex portion that internal perisporium protrudes inwardly
35.The location and shape of convex portion 35 are different in each slot 23.It is separately positioned on and clips the two long of circular depressions 31
Convex portion 35 in square-shaped recess 32 configures is rotating the symmetrical position of 180 degree relative to the central axis of ink implanting needle 26.Respectively
Individual slot 23 is symmetrical relative to the central axis rotation 180 degree of ink implanting needle 26.
(ink bottle)
Then, 4~Fig. 7 of reference picture illustrates to ink bottle.Fig. 4 is the side view of ink bottle.Fig. 5 is to pull down cover
Ink bottle (bottle main body) side view.Fig. 6 is Fig. 5 line A-A sectional view.Fig. 7 is the stereogram of outlet side part.
As shown in figure 4, the ink bottle 1 of this example possesses bottle main body 41 (ink feed container) and is releasably arranged on bottle master
Cover 42 on body 41.In addition, in the explanation of ink bottle 1, the direction of the axis L along bottle main body 41 is set to L axle sides
To bottle main body 41 to be set to-L the directions of L direction of principal axis relative to the direction of the location of cover 42, its opposite side is set to
+ L directions.Bottle main body 41 axis L using be arranged on the top in+L directions of bottle main body 41 ink outlet 47 center as axle center.
(bottle main body)
As shown in figure 5, bottle main body 41 possesses the ink accommodating portion 44 of inner containment ink and is arranged on ink accommodating portion 44
+ L directions side end stream forming portion 45.As shown in fig. 6, stream forming portion 45 internally possesses and ink accommodating portion 44
The ink outlet stream 46 of connection.Also, tip portion of the stream forming portion 45 in the side opposite with ink accommodating portion 44 has
Standby ink outlet 47.Ink outlet 47 is the downstream of ink outlet stream 46.Cover 42 is arranged in bottle main body 41, covering
Stream forming portion 45, close ink outlet 47.
As shown in fig. 6, bottle main body 41 by main element 51, the outlet side part 52 being fixed on main element 51 and
By the seal member 53 of the ring-type sealed between main element 51 and outlet side part 52, these three parts are formed on axial direction.
Main element 51 is by resin material, iron such as PET (PET), nylon, polyethylene, polypropylene, polystyrene
The metal material such as material or aluminium is formed.Outlet side part 52 is by PET (PET), nylon, polyethylene, poly- third
The resin materials such as alkene, polystyrene are formed.Seal member 53 is by the foamed material of polyethylene, rubber or elastomer elastomeric material
Formed.
Main element 51 forms ink accommodating portion 44.Main element 51 possesses:Path cylinder portion 55, it is located at +Z direction end;
First conically shaped portion 56, from the ora terminalis in-L directions in path cylinder portion 55 towards-L directions, circumferentially side extends for it;Central diameter cylinder portion 57, its
Axially extended from the ora terminalis in-L directions in the first conically shaped portion 56;Second conically shaped portion 58, it is from-L the sides in central diameter cylinder portion 57
To ora terminalis towards-L directions, circumferentially side extends;Big footpath cylinder portion 59, it is from the ora terminalis in-L directions in the second conically shaped portion 58 along axle
To extension;And rounded bottom 60, it blocks the open-ended of-L directions in big footpath cylinder portion 59.Central diameter cylinder portion 57 is on outer peripheral face
Possesses external thread part 61.In the end part in-L directions in big footpath cylinder portion 59, in the region of the one fixed width of L direction of principal axis, set
There is the reducing diameter part 62 that outside dimension is smaller than big footpath cylinder portion 59.
Outlet side part 52 possesses:Stream forming portion 45;It is fixed on fixation cylinder portion 64 on main element 51;And set
In stream forming portion 45 and the fixed circular step portion 65 used between cylinder portion 64.Stream forming portion 45, which is located at, fixes with cylinder portion 64
+ L directions side.The outside dimension of stream forming portion 45 is smaller with cylinder portion 64 than fixed.
Stream forming portion 45 possesses the ora terminalis annular convex prominent to inner circumferential side in a portion 71 and the+L directions from cylinder portion 71
72.The inner side in cylinder portion 71 is ink outlet stream 46.Ink outlet 47 is provided by the circular inner peripheral surface of annular convex 72.And
And stream forming portion 45 possesses the valve 74 of circle, it can openedly and closedly close the ink in the centre of ink outlet stream 46
Water out stream 46.Valve 74 is fixed on the state being clipped on L direction of principal axis between the valve support 75 of ring-type and annular convex 72
In stream forming portion 45.
Valve 74 is slit valve.Valve 74 possesses the circular valve body 78 formed by rubber or elastomer elastomeric material and formed
In the slit 79 of the cross of the core of valve body 78.Valve 74 possesses:Annulus 81, it is convex with ring-type that it is folded in valve support 75
Between portion 72 and it is fixed on outlet side part 52;Circular portion 82, it is located at the inner circumferential side of annulus 81;And ring-type
Linking portion 83, it links between annulus 81 and circular portion 82.On circular portion 82, the slit formed with cross
79.Linking portion 83 is prominent from annulus 81 to inner circumferential side and is bent to-L directions side (side of ink accommodating portion 44).Linking part
Points 83 relatively thin compared to annulus 81 and circular portion 82.Here, in the state of external force is not applied to valve 74, such as Fig. 6 institutes
Show, slit 79 is closed, and valve body 78 blocks ink outlet stream 46.
Fixation cylinder portion 64 possesses the internal thread part 85 screwed togather with the external thread part of main element 51 61 on inner peripheral surface.
On the fixed outer peripheral face with cylinder portion 64, the external thread part 86 for installing cover 42 is provided with.
Circular step portion 65 possesses:Annular plate section 89, it hangs down from the ora terminalis in-L directions of stream forming portion 45 along with axis L
Straight direction extends to outer peripheral side;Annular wall 90, it extends from the ora terminalis of the outer circumferential side of annular plate section 89 to-L directions;And the
Two annular plate sections 91, it extends to outer peripheral side from the ora terminalis in-L directions of annular wall 90 along the direction with axis L-orthogonal.Second
The ora terminalis of the outer circumferential side of annular plate section 91 is connected with fixed with the ora terminalis in+L directions in cylinder portion 64.
Here, as shown in fig. 7, outlet side part 52 is also equipped with the first location division 95 and the second location division 96.First positioning
The location division 96 of portion 95 and second is arranged on the side in the direction vertical with axis L that stream forming portion 45 is clipped in the middle and another
Side.First location division 95 and the second location division 96 are tabular, are protruded from annular plate section 89 to+L directions.Also, the first location division
95 and second location division 96 radially extended respectively in the side of stream forming portion 45 and opposite side.The top of first location division 95
Face 95a and 96 top end face 96a of the second location division is more prominent more to+L directions than the top of stream forming portion 45.It is fixed first
In the location division 96 of position portion 95 and second on the circumferential lateral parts of direction, the engaging recessed part 97 extended along L direction of principal axis is provided with.
When the ink-feeding device 5 from ink bottle 1 to ink Jet system 2 supplements ink, the first location division 95 and the
The recess 30 (a pair of oblong depressions 32) of the slot 23 of two location divisions 96 insertion ink-feeding device 5, by being rotated around axis L
Ink bottle 1 is positioned.When the first location division 95 and the second location division 96 are inserted into a pair of oblong depressions 32, engaging is recessed
Portion 97 engages with the convex portion 35 being arranged on oblong depressions 32.
Also, outlet side part 52 has flange part 100 in the centre position of the L direction of principal axis of stream forming portion 45.Flange
Portion 100 possesses:Annular flange portion 101, its from the outer peripheral face of stream forming portion 45 along the direction with axis L-orthogonal to outer peripheral side
Extension;And rectangular flange portion 102, its from the first location division 95 and the centre position of the L direction of principal axis of the second location division 96 to
Circumferential both sides extension.Annular flange portion 101 and each rectangular flange portion 102 diametrically continuous without step, and
The end face 100a in+L directions of flange part 100 is the tabular surface with axis L-orthogonal.
When the ink-feeding device 5 from bottle main body 41 to ink Jet system 2 supplements ink, flange part 100 and ink
The outer peripheral edge of the recess 30 of slot 23 on the upper surface 22a of the adapter 22 of feedway 5 abuts, and is positioned on L direction of principal axis
Bottle main body 41.That is, the end face 100a in+L directions of flange part 100 is relative to ink-feeding device 5 by bottle main body 41
The locating surface positioned on L direction of principal axis.
Here, as shown in fig. 6, by the way that seal member 53 is configured in the circular step portion 65 of outlet side part 52
Side, and the path cylinder portion 55, the first conically shaped portion 56 and central diameter cylinder portion 57 of main element 51 are inserted into outlet side part 52
Fixation cylinder portion 64 inner circumferential side, by the external thread part 61 in central diameter cylinder portion 57 and the fixed spiral shell of internal thread part 85 with cylinder portion 64
Close, so as to which bottle main body 41 be assembled.In the state of bottle main body 41 is assembled, outlet side part 52 is arranged at
The ink outlet stream 46 of stream forming portion 45 connects via the centre bore of seal member 53 with bottle main body 41 (ink accommodating portion 44)
It is logical.
(cover)
As shown in figure 4, cover 42 possesses the trunk 105 of tubular and the end in+L directions of blocking trunk 105 is opened
The top plate portion 106 of mouth.On the end part in-L directions of the inner peripheral surface of trunk 105, being provided with can be outer with bottle main body 41
The internal thread part 107 that threaded portion 86 (being arranged on the fixation of outlet side part 52 with the external thread part 86 in cylinder portion 64) screws togather.Lid
Part 42 is formed by resin materials such as PET (PET), nylon, polyethylene, polypropylene, polystyrene.Lid
Part 42 makes the external screw thread of its internal thread part 107 and bottle main body 41 by covering bottle main body 41 from the side of outlet side part 52
Portion 86 screws togather, so as to be fixed in bottle main body 41.Here, in the middle body of top plate portion, the envelope for setting oriented-L directions to protrude
Closing part 108, when cover 42 is fixed in bottle main body 41, closure 108 closes ink outlet 47 from L direction of principal axis.
(ink replenishing action)
Fig. 8 is that the ink replenishing of the supplement ink of ink-feeding device 5 from bottle main body 41 to ink Jet system 2 acts
Illustrate figure.Fig. 9 is the partial cross section that bottle main body 41 during ink replenishing is acted, ink tank 21, adapter 22 are blocked with YZ planes
Figure.
When the ink tank 21 from bottle main body 41 to ink-feeding device 5 supplements ink, user is by cover 42 from bottle main body
Pulled down on 41.Thereafter, as shown in figure 8, making bottle main body 41 be located at lower section as outlet side part 52, main element 51 is above
Supplement posture.Then, the tip portion of outlet side part 52 is inserted to the slot 23 of the adapter 22 of ink-feeding device 5,
The flange part 100 of outlet sidepiece part 52 is set to be abutted with the upper surface 22a of adapter 22.That is, by the top ends of stream forming portion 45
The circular depressions 31 of point insertion adapter 22, make the flange part 100 of outlet sidepiece part 52 end face 100a and adapter 22 it is upper
The edge of opening of recess 30 on the 22a of surface abuts.
Here, by the side of the Y direction in circular depressions 31, oblong depressions 32 are inserted into the first location division 95,
In the opposite side of Y direction, oblong depressions 32 are inserted into the second location division 96, bottle main body 41 by around axis L rotate and by
Positioning.At this moment, the top end face 95a of the first location division 95 and the engaging recessed part 97 of the second location division 96 are with being arranged on oblong depressions
Convex portion 35 on 32 engages.Also, by by the recessed of the flange part 100 of outlet side part 52 and the upper surface 22a of adapter 22
The edge of opening in portion 30 abuts, so as to which bottle main body 41 is relative to the position of the Z-direction of adapter 22 and ink tank 21 (L direction of principal axis)
Position 41A as defined in being positioned in.
When bottle main body 41 is positioned in defined position 41A in Z-direction (L direction of principal axis), as shown in figure 9, slot 23
Ink implanting needle 26 enter the inner side of stream forming portion 45 via ink outlet 47.Thus, ink implanting needle 26 and ink go out
Mouth stream 46 turns into the state of connection.Also, enter the tip portion of the ink implanting needle 26 of the inner side of stream forming portion 45 with
The valve body 78 of valve 74 is abutted and opens slit 79, and valve body 78 is run through in Z-direction (L direction of principal axis).Thus, on valve 74, shape
The opening portion 110 run through into the tip portion of ink supply water implanting needle 26.As a result, opened because ink outlet stream 46 turns into
State, therefore the ink accommodating portion 44 of bottle main body 41 connects with ink implanting needle 26.Therefore, the ink in ink accommodating portion 44 from
Ink outlet stream 46 is flowed out in ink tank 21 via ink implanting needle 26.Therefore, ink fills from bottle main body 41 to providing ink
5 ink tank 21 is put to feed.
(size of each several part)
Then, reference picture 5, Figure 10, to the chi of each several part of the slot 23 of the ink-feeding device 5 of ink Jet system 2
The size of very little, bottle main body 41 each several part, each several part of slot 23 and the relation of the size of each several part of bottle main body 41 are said
It is bright.Figure 10 is the explanation figure of the size of slot 23 and each several part of stream forming portion 45.State shown in Figure 10 is formed for stream
The insertion recess 30 of portion 45 and bottle main body 41 are positioned in the defined position 41A of Z-direction (L direction of principal axis) state.In Figure 10
In, cut off slot 23 and stream forming portion 45 with the line B-B shown in Fig. 3, Fig. 8.Line B-B is each slot 23 in ink tank 21
Place, through the center of ink implanting needle 26, along the line of the internal face 31a for the relative circular arc for linking recess 30 direction extension.
Line B-B extends along the direction that 45 degree are tilted relative to X-direction and Y direction.
First, as shown in Figure 10, the distance between internal face 31a of circular arc relative in the circular depressions 31 of adapter 22
E (internal diameter sizes of circular depressions 31) is 15.6mm.From the bottom surface 30a of recess 30 (circular depressions 31 and oblong depressions 32) extremely
The upper surface 22a of adapter 22 size F is 11.5mm.From the bottom surface 30a of recess 30 to the top (upper end of ink implanting needle 26
Face) between size G be 10.3mm.The outside dimension H of ink implanting needle 26 is 6mm.
On the other hand, in bottle main body 41, as shown in figure 5, the total length M of Z-direction (L direction of principal axis) is (from the first location division
95 and second location division 96 the+L directions end to-L directions end of rounded bottom 60 size) be 123mm.The big footpath of bottle main body 41
The outside dimension N in cylinder portion 59 is 38mm.In addition, according to the difference of the species of bottle main body 41, there is also the big footpath cylinder of bottle main body 41
The outside dimension N in portion 59 is 54mm situation.
Then, as shown in Figure 10, the internal diameter size O of ink outlet 47 is 7.9mm.The internal diameter size O of ink outlet 47 is
The internal diameter size of the inner peripheral surface of the ring-type of the annular convex 72 of stream forming portion 45.
The size P of the Z-direction (L direction of principal axis) of stream forming portion 45 is (from the top of stream forming portion 45 to annular plate section 89
Between size) be 19.1mm.Size Q from the top of stream forming portion 45 to the end face 100a of flange part 100 is 9.7mm.
Valve 74 is maintained at holding from the top of stream forming portion 45 along Z-direction (L direction of principal axis) to ink for the inner side of stream forming portion 45
Receive in the side 4mm~10.3mm of portion 44 scope R.
Here, working as, stream forming portion 45 inserts recess 30 and bottle main body 41 is positioned in rule in Z-direction (L direction of principal axis)
During fixed position 41A, gap S is formed between the top of stream forming portion 45 and the bottom surface 30a of recess 30.Gap S Z axis side
To distance be 1.8mm.Therefore, ink implanting needle 26 inserts in stream forming portion 45 8.5mm (in ink outlet stream 46).
That is, when bottle main body 41 is positioned in defined position 41A, from the top of stream forming portion 45 to the top of ink implanting needle 26
Between the distance T of Z-direction be 8.5mm.
Then, the maximum of the stream forming portion 45 between from the top of stream forming portion 45 to the top of ink implanting needle 26
Outside dimension U (width between the periphery wall of stream forming portion 45) is 14.9mm.Also, work as ink implanting needle 26 along Z-direction
During through valve body 78, opening portion 110 is clipped in the middle and the width V between relative body portion 78a (valve portion) is 6mm.
Width V between relative body portion 78a can be considered as the opening portion 110 being formed on line B-B direction on valve body 78
Width.Also, the width V between relative body portion 78a is identical with the outside dimension of ink implanting needle 26.Therefore, relatively
Body portion 78a between width V can also be considered as the outside dimension of ink implanting needle 26.The maximum of stream forming portion 45
Outside dimension U and ink implanting needle 26 is clipped in the middle and the ratio between width V between relative body portion 78a on N directions
Within 3 times.It is 2.48 times in this example.
(action effect)
According to this example, from the top of stream forming portion 45 to the top of ink implanting needle 26 between stream forming portion 45
During opening portion 110 (ink implanting needle 26) is to be clipped in maximum outside diameter size U (width between the periphery wall of stream forming portion 45)
Between and relative body portion 78a on N directions between 3 times of width of width V within.Therefore, in bottle main body 41, make
The stream forming portion 45 that ink flows out towards the side of ink tank 21 is smaller.Also, due to defining each several part of stream forming portion 45
Size, therefore stream forming portion 45 will not also increase.Thereby, it is possible to the ink for suppressing to be attached on the inner peripheral surface of stream forming portion 45
The amount of water.Therefore, it is possible to reduce the surplus for the ink for not supplementing and remaining in bottle main body 41 to ink tank 21.
Also, because stream forming portion 45 is smaller, therefore the slot that stream forming portion 45 is inserted can be formed smaller
23, as a result, can body 25 can be formed smaller.
In this example, valve 74 is the slit valve for the slit 79 for possessing valve body 78 and being arranged on valve body 78.Therefore, by entering
The ink implanting needle 26 for entering ink outlet stream 46 is abutted with valve 74 (valve body 78), and opening portion 110 can be formed on valve 74.
Also, due to valve 74 be arranged on the end from the side of ink outlet 47 of stream forming portion 45 to along L direction of principal axis 4mm~
In the range of 10.3mm, therefore valve 74 can be configured in the centre of ink outlet stream 46.In ink outlet stream 46
Between configure valve 74 structure can reduce the ink being attached in the ink outlet 47 of the tip portion of stream forming portion 45.
Also, it is readily configured to form opening portion 110 on valve by the ink implanting needle 26 entered from ink outlet 47.And then by
Entering ink outlet stream 46 in ink implanting needle 26 has 8.5mm, therefore can pass through the ink into ink outlet stream 46
Implanting needle 26 forms opening portion 110 on valve 74.