Injection apparatus and injection apparatus with container

Abstract

To suppress leakage of an injection object from a container.SOLUTION: An injection apparatus injects an injection object from a jet opening part. The injection apparatus includes a housing containing the jet opening part. The housing includes a container holding part constituted so as to hold a container containing a container opening part for supplying the housed injection object. In a state that the container is held by the container holding part and the injection apparatus is placed on a horizontal plane, the injection apparatus is brought into contact with the horizontal plane at three positions, and the container opening part is opened toward the direction upper than a direction parallel to the horizontal plane.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a spray device and a spray device with a container. [Background technology]

[0002] For example, as disclosed in Patent Document 1, a spraying device that sprays a target object such as a liquid is known. One example of the spraying device is a painting device that sprays paint or coating material. The spraying device holds a container that contains the target object. The spraying device and the container constitute a container-equipped spraying device.

[0003] When work using the container-equipped spray device is stopped, the container-equipped spray device may be placed on a horizontal surface such as a workbench. When the container-equipped spray device is placed on a horizontal surface, the tip opening of the container may face downward in the vertical direction. In this case, the substance to be sprayed contained in the container may leak out of the container due to gravity. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 2007-521941 Summary of the Invention [Problem to be solved by the invention]

[0005] The present disclosure has been made in consideration of the above points, and aims to prevent leakage of a target object from a container. [Means for solving the problem]

[0006] One embodiment of the present disclosure is as follows. <1> ~ <32> Regarding.

[0007] <1> An injection device that injects an object to be injected from an injection opening, a housing including the ejection opening; the housing includes a container holder configured to hold a container including a container opening for supplying the object to be sprayed therein; When the container is held in the container holding portion and the spray device is placed on a horizontal surface, the spray device contacts the horizontal surface at three positions, and the container opening opens upward in a direction parallel to the horizontal surface.

[0008] <2> a housing including the ejection opening; a gas flow path forming portion held by the housing, the housing includes a container holding portion configured to hold a container that contains the object to be sprayed, the gas flow path forming portion includes an opening portion that is disposed opposite the ejection opening portion and ejects gas toward the ejection opening portion, the container includes a container opening for supplying the object to be ejected to a region between the ejection opening and the opening, When the container is held in the container holding portion and the spray device is placed on a horizontal surface, the spray device contacts the horizontal surface at three positions, and the container opening opens upward in a direction parallel to the horizontal surface.

[0009] <3> When the container is held by the container holder and the spray device is placed on a horizontal surface, 70% or more of the internal volume of the container is located below the lower end of the container opening. <1> or <2> 2. The injection device according to claim 1 .

[0010] <4> the housing includes a handle portion that is gripped by a user, the container holding portion, and an intermediate portion that is located between the handle portion and the container holding portion and includes the ejection opening; the intermediate portion includes flange portions bulging out on both sides in the width direction, The width direction is perpendicular to both the front-rear direction and the up-down direction, The front-rear direction is parallel to the ejection direction of the ejected object, the up-down direction is a direction in which the handle portion and the container holding portion face each other and is perpendicular to the front-rear direction; The three positions include a first contact position on the flange portion, a second contact position on the handle portion, and a third contact position on the container holder. <1> ~ <3> 10. The injection device according to claim 9,

[0011] <5> When projected onto the horizontal plane, the ejection opening and the third contact position are located on opposite sides of a reference axis that passes through the first contact position and the second contact position, the third contact position is located at a rear end portion of the container holding portion that is away from the ejection opening in the front-rear direction. <4> 2. The injection device according to claim 1 .

[0012] <6> the container holding portion holds the container such that the container moves away from the flange portion in the up-down direction as the container moves away from the ejection opening in the front-rear direction. <5> 2. The injection device according to claim 1 .

[0013] <7> a gas flow path forming portion held by the housing, the gas flow path forming portion includes a tip nozzle member that supplies gas toward the ejection opening, a connector that is connected to a tubular member that supplies compressed gas, and a communication member that forms a flow path for the gas from the connector to the tip nozzle member, When projected onto the horizontal plane, the ejection opening is located on the opposite side to the third contact position and the connector with respect to a reference axis line that passes through the first contact position and the second contact position. <4> ~ <6> 10. The injection device according to claim 9,

[0014] <8> a weight located within the housing; When projected onto the horizontal plane, the ejection opening is located on the opposite side to the third contact position and the weight with respect to a reference axis line that passes through the first contact position and the second contact position. <4> ~ <7> 10. The injection device according to claim 9,

[0015] <9> When projected onto the horizontal plane, the ejection opening is located on the opposite side to the third contact position and the center of gravity of the ejection device with respect to a reference axis line that passes through the first contact position and the second contact position. <4> ~ <8> 10. The injection device according to claim 9,

[0016] <10> The center of gravity is located in the handle portion. <9> 2. The injection device according to claim 1 .

[0017] <11> the flange portion includes a widest portion having a maximum dimension along the width direction, When projected onto the horizontal plane, the widest portion on the flange portion facing the ejection opening and the horizontal plane is located on the opposite side to the third contact position, with a reference axis passing through the first contact position and the second contact position as the center. <4> ~ <10> 10. The injection device according to claim 9,

[0018] <12> a central axis of the container passing through the ejection opening when the container is held by the container holder; When observed from the width direction, the ejection direction of the object from the ejection opening is along an extension line of the flange portion. <4> ~ <11> 10. The injection device according to claim 9,

[0019] <13> An injection device that injects an object to be injected from an injection opening, a housing including the ejection opening; the housing includes a handle portion to be gripped by a user, a container holding portion configured to hold a container containing the object to be sprayed, and an intermediate portion located between the handle portion and the container holding portion and including the ejection opening, a central axis of the container passing through the ejection opening when the container is held in the housing; the intermediate portion includes flange portions bulging out on both sides in the width direction, The width direction is perpendicular to both the front-rear direction and the up-down direction, The front-rear direction is parallel to the ejection direction of the ejected object, the up-down direction is a direction in which the handle portion and the container holding portion face each other and is perpendicular to the front-rear direction; When observed from the width direction, the direction in which the object to be ejected from the ejection opening is along an extension line of the flange portion.

[0020] <14> a weight located within the housing; the housing includes a handle portion that is gripped by a user, the container holding portion, and an intermediate portion that is located between the handle portion and the container holding portion and includes the ejection opening; the intermediate portion includes flange portions bulging out on both sides in the width direction, The width direction is perpendicular to both the front-rear direction and the up-down direction, The front-rear direction is parallel to the ejection direction of the ejected object, the up-down direction is a direction in which the handle portion and the container holding portion face each other and is perpendicular to the front-rear direction; The weight is located on the handle portion side of the flange portion in the vertical direction. <1> ~ <13> 10. The injection device according to claim 9,

[0021] <15> An injection device that injects an object to be injected from an injection opening, a housing including the ejection opening; a weight located within the housing; the housing includes a handle portion to be gripped by a user, a container holding portion configured to hold a container containing the object to be sprayed, and an intermediate portion located between the handle portion and the container holding portion and including the ejection opening, the intermediate portion includes flange portions that bulge out on both sides in the width direction and extend in the front-rear direction, The width direction is perpendicular to both the front-rear direction and the up-down direction, The front-rear direction is parallel to the ejection direction of the ejected object, the up-down direction is a direction in which the handle portion and the container holding portion face each other and is perpendicular to the front-rear direction; The weight is located on the handle portion side of the flange portion in the up-down direction.

[0022] <16> a weight located within the housing; the housing includes a handle portion that is gripped by a user, the container holding portion, and an intermediate portion that is located between the handle portion and the container holding portion and includes the ejection opening; the housing includes a recess at a position between the handle portion and the intermediate portion for receiving a crotch portion between the user's thumb and index portion; the weight is at least partially located rearward in the front-rear direction from an axis connecting a lower end in the up-down direction of a region that is the rear end of the handle portion in the front-rear direction and the recess, The front-rear direction is parallel to the ejection direction of the ejected object, The up-down direction is a direction in which the handle portion and the container holding portion face each other and is perpendicular to the front-rear direction. <1> ~ <15> 10. The injection device according to claim 9,

[0023] <17> An injection device that injects an object to be injected from an injection opening, a housing including the ejection opening; a weight located within the housing; the housing includes a handle portion to be gripped by a user, a container holding portion configured to hold a container containing the object to be sprayed, and an intermediate portion located between the handle portion and the container holding portion and including the ejection opening, the housing includes a recess at a position between the handle portion and the intermediate portion for receiving a crotch portion between the user's thumb and index portion; the weight is at least partially located rearward in the front-rear direction from an axis connecting a lower end in the up-down direction of a region that is the rear end of the handle portion in the front-rear direction and the recess, The front-rear direction is parallel to the ejection direction of the ejected object, The up-down direction is a direction in which the handle portion and the container holding portion face each other, and is perpendicular to the front-rear direction.

[0024] <18> a gas flow path forming portion held by the housing and configured to supply gas toward the ejection opening; an opening / closing operation member that opens and closes the gas flow path formed by the gas flow path forming portion, the opening / closing operation member is located on the front side of the handle portion in the front-rear direction, and opens the gas flow path by moving toward the rear side in the front-rear direction. <16> or <17> 2. The injection device according to claim 1 .

[0025] <19> a weight located within the housing; the housing is made of resin, The housing includes a handle portion that is gripped by a user and the container holding portion, The weight is located within the handle portion. <1> ~ <18> 10. The injection device according to claim 9,

[0026] <20> An injection device that injects an object to be injected from an injection opening, a resin housing including the ejection opening; a weight located within the housing; The housing includes a handle portion that is gripped by a user and a container holding portion that is configured to hold a container that contains the object to be sprayed, The injection device, wherein the weight is located within the handle portion.

[0027] <21> a gas flow path forming portion held by the housing, the gas flow path forming portion includes a tip nozzle member that supplies gas toward the ejection opening, the tip nozzle member includes a gas nozzle portion that ejects the gas, and a bottom wall portion that extends from the gas nozzle portion in a direction non-parallel to a direction in which the gas is ejected from the gas nozzle portion, the gas nozzle portion includes a gas flow path including a tapered portion that tapers toward the gas ejection opening in the gas ejection direction, a bottom surface of the bottom wall portion is located at the same position as the tapered portion in the ejection direction or at a position closer to the ejection opening than the tapered portion; <1> ~ <20> 10. The injection device according to claim 9,

[0028] <22> An injection device that injects an object to be injected from an injection opening, a housing including the ejection opening; a gas flow path forming portion held by the housing, the housing includes a container holding portion configured to hold a container that contains the object to be sprayed, the gas flow path forming portion includes a tip nozzle member that supplies gas toward the ejection opening, the tip nozzle member includes a gas nozzle portion that ejects the gas, and a bottom wall portion that extends from the gas nozzle portion in a direction non-parallel to a direction in which the gas is ejected from the gas nozzle portion, the gas nozzle portion includes a gas flow path including a tapered portion that tapers toward the gas ejection opening in the gas ejection direction, an injection device, wherein a bottom surface of the bottom wall portion is located at the same position as the tapered portion in the injection direction or at a position closer to the injection opening than the tapered portion.

[0029] <23> The container includes a storage portion that stores the object to be ejected, and a cap that closes the storage portion, the container holding portion includes a container guard that covers the container from a radial direction perpendicular to a central axis of the container, The container guard extends from the container held by the container holder in a direction opposite to the cap along the central axis. <1> ~ <20> 10. The injection device according to claim 9,

[0030] <24> An injection device that injects an object to be injected from an injection opening, a housing including the ejection opening; the housing includes a container holding portion configured to hold a container that contains the object to be sprayed, The container includes a storage portion that stores the object to be ejected, and a cap that closes the storage portion, the container holding portion includes a container guard that covers the container from a radial direction perpendicular to a central axis of the container, The spray device, wherein the container guard extends from the container held by the container holder in a direction opposite to the cap along the central axis.

[0031] <25> The container includes a storage portion that stores the object to be ejected, and a cap that closes the storage portion, the container holding portion includes a container guard that covers the container from a radial direction perpendicular to a central axis of the container, the container guard includes a recess at a position facing the cap; The recess increases the circumferential length of the portion of the container exposed from the container guard, the length being centered on the central axis. <1> ~ <24> 10. The injection device according to claim 9,

[0032] <26> An injection device that injects an object to be injected from an injection opening, a housing including the ejection opening; the housing includes a container holding portion configured to hold a container that contains the object to be sprayed, The container includes a storage portion that stores the object to be ejected, and a cap that closes the storage portion, the container holding portion includes a container guard that covers the container from a radial direction perpendicular to a central axis of the container, the container guard includes a recess at a position facing the cap; The recess increases the circumferential length of the portion of the container exposed from the container guard, the length being centered on the central axis.

[0033] <27> The container held in the container holding portion is covered by the container guard in at least a part of an area in which the recess is located in a direction along the central axis, the part having a length that is less than 50% of a circumferential length around the central axis. <25> or <26> 2. The injection device according to claim 1 .

[0034] <28> The housing further includes a handle portion that is gripped by a user; the container guard is positioned to both outer sides in the width direction of the container held by the container holding portion, The width direction is perpendicular to both the front-rear direction and the up-down direction, The front-rear direction is parallel to the ejection direction of the ejected object, The up-down direction is a direction in which the handle portion and the container holding portion face each other and is perpendicular to the front-rear direction. <25> ~ <27> 10. The injection device according to claim 9,

[0035] <29> the housing includes a housing main body and a rotation restricting member detachable from the housing main body, the container includes a container portion that contains the object to be sprayed, a cap that closes the container portion, and a container nozzle portion that is rotatably held by the cap, the container nozzle is opened and closed by rotating the container nozzle relative to the cap; the rotation restricting member contacts the container nozzle portion of the container held by the container holder to restrict rotation of the container nozzle portion. <1> ~ <28> 10. The injection device according to claim 9,

[0036] <30> An injection device that injects an object to be injected from an injection opening, a housing including the ejection opening; the housing includes a container holding portion configured to hold a container that contains the object to be sprayed, the housing includes a housing main body and a rotation restricting member detachable from the housing main body, the container includes a container portion that contains the object to be sprayed, a cap that closes the container portion, and a container nozzle portion that is rotatably held by the cap, the container nozzle is opened and closed by rotating the container nozzle relative to the cap; The rotation restricting member contacts the container nozzle portion of the container held by the container holder to restrict rotation of the container nozzle portion.

[0037] <31> a gas flow path forming portion held by the housing, the gas flow path forming portion includes a gas nozzle portion that is disposed facing the ejection opening and ejects gas toward the ejection opening, The container includes a container nozzle portion that supplies the object to be sprayed to a region between the ejection opening and the gas nozzle portion. <1> ~ <30> 10. The injection device according to claim 9,

[0038] <32> <1> ~ <31> an injection device according to any one of the preceding claims; a container held by the spray device. [Effects of the Invention]

[0039] According to the present disclosure, leakage of the object to be injected from the container can be suppressed. [Brief explanation of the drawings]

[0040] [Figure 1] FIG. 1 is a diagram for explaining this embodiment, and is a perspective view showing a specific example of a spray device with a container. [Figure 2] FIG. 2 is an exploded perspective view showing the container-equipped spray device shown in FIG. [Figure 3] FIG. 3 is a perspective view showing the spray device with the container shown in FIG. [Figure 4] FIG. 4 is a perspective view of the spray device of the container-equipped spray device shown in FIG. [Figure 5] FIG. 5 is a front view showing the container-equipped spray device shown in FIG. 1 from the front side along the front-rear direction. [Figure 6] FIG. 6 is a top view showing the container-equipped spray device shown in FIG. 1 from above along the vertical direction. [Figure 7] 7 is a perspective view showing the container of the container-equipped spray device shown in FIG. 1. FIG. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. [Figure 9] FIG. 9 is a top view showing the container-equipped spray device shown in FIG. 1 from above in the up-down direction in a state where it is placed on a horizontal surface. [Figure 10] FIG. 10 is a front view of the container-equipped spray device shown in FIG. 1, viewed from the front side in the front-rear direction, in a state where it is placed on a horizontal surface. [Figure 11] FIG. 11 is a plan view showing the spray device with a container shown in FIG. 1 placed on a horizontal surface, viewed from a direction along a line perpendicular to the horizontal surface. [Figure 12]12 is a plan view of the spray device with container shown in FIG. 11 placed on a horizontal surface with the first housing part removed, viewed from a direction perpendicular to the horizontal surface. DETAILED DESCRIPTION OF THE INVENTION

[0041] The container-equipped spray device and the spray device according to this embodiment will be described below with reference to a specific example shown in Figures 1 to 12. Some components included in the container-equipped spray device and the spray device are shown in some of the drawings but are omitted in other drawings.

[0042] To clarify the relationship between directions between drawings, arrows with common symbols are used in several drawings to indicate the front-to-back direction D1, the up-down direction D2, and the width direction D3, which will be described later. The tip of the arrow is the first side in each direction. The side opposite the tip of the arrow is the second side in each direction. An arrow pointing toward the viewer in a direction perpendicular to the surface of the drawing is indicated by a symbol with a dot in a circle, as shown in FIG. 5, for example. An arrow pointing toward the viewer in a direction perpendicular to the surface of the drawing is indicated by a symbol with an x ​​in a circle, as shown in FIG. 8, for example.

[0043] The container-equipped spray device 10X according to this embodiment includes the spray device 10 and the container 70. The spray device 10 includes a housing 20. The housing 20 includes an ejection opening 25. The container 70 is held in the housing 20. The spray device 10 ejects the object to be sprayed housed in the container 70 from the ejection opening 25. The spray device 10 according to this embodiment is devised to prevent the object to be sprayed from leaking from the container.

[0044] The term "jet target" refers to an object that can be sprayed. The jet target may be a liquid. The jet target may be a powder. Liquid also includes a suspension in which some substance is dispersed in a solvent. In other words, liquid is not limited to meaning a state different from that of a solid or gas, but refers to a liquid substance that has fluidity to the extent that it can be sprayed from the ejection opening. The liquid may be a paint containing a coloring material. The coloring material may be one or more of a dye and a pigment. The powder may be a powdery material or a granular material. The powder may be a coating material containing a coloring material.

[0045] 1 and 2, the spray device 10 may include, in addition to the housing 20, an opening / closing operation member 49, a gas flow path forming portion 50, and a weight 65. In the illustrated spray device 10, gas is used to spray liquid from the spray opening 25. Below, the components included in the container-equipped spray device 10X will be described in order with reference to the illustrated specific example in which the object to be sprayed is liquid.

[0046] First, the container 70 will be described. The container 70 contains the container-equipped spray device 10X and the object to be sprayed from the spray device 10. The container 70 may be a bottle. The container 70 may be refillable with the object to be sprayed. The container 70 may be disposable. A portion of the container 70 may be transparent so that the remaining amount of the object to be sprayed can be confirmed. In the following description, the object to be sprayed contained in the container 70 will be described as a liquid.

[0047] In the example shown in FIG. 7 , the container 70 includes a storage portion 71 and a cap 73. The storage portion 71 stores a liquid. The storage portion 71 may be a bottle body. The storage portion 71 may be transparent. The storage portion 71 may be made of resin or glass. The storage portion 71 may have an opening for discharging the liquid. The storage portion 71 may be refilled with liquid through this opening. The cap 73 covers the opening of the storage portion 71. The cap 73 may be a bottle cap. The cap 73 may be detachable from the storage portion 71. The cap 73 may be made of resin or metal. The cap 73 may be made by assembling two or more parts.

[0048] 7 and 8, the cap 73 includes a cap body 74, a needle portion 75, and a gasket 76. The gasket 76 seals the gap between the cap body 74 and the storage portion 71. The needle portion 75 extends from the cap body 74. The needle portion 75 includes a flow path for the object to be injected therein. The needle portion 75 includes a supply port 75a for supplying the object to be injected. The illustrated needle portion 75 extends from the cap body 74 along the central axis CL70 of the container 70, toward the side opposite to the storage portion 71. The needle portion 75 is located on the central axis CL70.

[0049] 7 and 8, the illustrated container 70 further includes a container nozzle portion 78 held by the cap 73. The container nozzle portion 78 is held by the cap 73 so as to cover the needle portion 75. The container nozzle portion 78 extends along a central axis CL70. The container nozzle portion 78 is located on the central axis CL70.

[0050] The container nozzle portion 78 is rotatable relative to the cap 73 about the central axis CL70. By rotating in one direction relative to the cap 73 about the central axis CL70, the container nozzle portion 78 moves relative to the cap 73 to one side along the central axis CL70. By rotating in the other direction relative to the cap 73 about the central axis CL70, the container nozzle portion 78 moves relative to the cap 73 to the other side along the central axis CL70.

[0051] The container nozzle portion 78 includes a container opening 78a. As shown in FIG. 8 , the container opening 78a is located at the end away from the storage portion 71 along the central axis CL70. The container opening 78a is located at the tip in a direction parallel to the central axis CL70. The container opening 78a is located on the central axis CL70. The liquid supplied from the supply port 75a of the needle portion 75 to between the needle portion 75 and the container nozzle portion 78 passes through the container opening 78a. That is, the liquid contained inside the container 70 is discharged from the container opening 78a to the outside of the container 70.

[0052] The container opening 78a of the container nozzle 78 can be opened and closed by the needle 75. The tip of the needle 75 is inserted into the container opening 78a depending on the relative positions of the container nozzle 78 and the needle 75 along the central axis CL70. At this time, the container opening 78a is closed by the needle 75. The needle 75 opens the container opening 78a by moving away from the inner surface of the container nozzle 78. That is, the container opening 78a can be closed by rotating the container nozzle 78 relative to the cap 73 about the central axis CL70. The container opening 78a can be opened by rotating the container nozzle 78 relative to the cap 73 about the central axis CL70. Furthermore, the opening degree of the container opening 78a can be adjusted by rotating the container nozzle 78 relative to the cap 73 about the central axis CL70. That is, by rotating the container nozzle part 78 about the central axis CL70 relative to the cap 73, the amount of liquid (object to be ejected) supplied from the container 70 can be adjusted.

[0053] The container nozzle portion 78 includes a nut portion 78b. The nut portion 78b is an annular portion centered on the central axis CL70. The nut portion 78b includes a corner portion. In the illustrated example, the nut portion 78b forms a hexagonal nut. The nut portion 78b is located at the base end of the container nozzle portion 78. The nut portion 78b is located on the opposite side of the central axis CL70 from the container opening 78a.

[0054] The container nozzle portion 78 may be made of resin. The container nozzle portion 78 may be made of metal. The container nozzle portion 78 may be made by assembling two or more parts.

[0055] Next, a description will be given of the spray device 10. The spray device 10 holds the container 70 having the above-described configuration. The spray device 10, together with the container 70, can constitute a spray device with container 10X.

[0056] As shown in FIGS. 1 and 3, the housing 20 may include a handle portion 30, an intermediate portion 35, and a container holding portion 45. The handle portion 30 is a portion that is gripped by a user. The handle portion 30 is configured to be gripped by a user. The container holding portion 45 is a portion that holds a container 70. The container holding portion 45 is configured to hold the container 70. The intermediate portion 35 is located between the handle portion 30 and the container holding portion 45. The handle portion 30 and the container holding portion 45 are connected to each other via the intermediate portion 35. As shown in FIGS. 1 and 5, the intermediate portion 35 includes the ejection opening 25.

[0057] As shown in Figures 5 and 6, the intermediate portion 35 may include a flange portion 36. The flange portion 36 is a portion that bulges (or protrudes) in the width direction D3. The flange portion 36 bulges (or protrudes) on both sides in the width direction D3. As shown in Figure 5, the flange portion 36 extends further in the width direction D3 than the handle portion 30. The flange portion 36 extends further in the width direction D3 than the container holding portion 45. The handle portion 30 is located more inward than the flange portion 36 in the width direction D3. The container holding portion 45 is located more inward than the flange portion 36 in the width direction D3.

[0058] 1 and 4 to 6, the flange portion 36 extends in the front-rear direction D1 on both sides in the width direction D3. The flange portion 36 may extend on a plane parallel to both the front-rear direction D1 and the width direction D3. As shown in FIG. 5, the ejection opening 25 is located on the flange portion 36. The ejection opening 25 is located on the first side (front side) of the flange portion 36 in the front-rear direction D1.

[0059] 6, the flange portion 36 includes a widest portion 38 in the middle in the front-rear direction D1. The flange portion 36 has a maximum dimension in the width direction D3 at the widest portion 38. That is, the flange portion 36 has a maximum width in the width direction D3 at the widest portion 38.

[0060] As shown in Figures 1 and 3, the flange portion 36 includes a ridge line 37. The ridge line 37 is formed by connecting positions of the flange portion 36 that protrude in the width direction D3. As shown in Figure 6, the ridge line 37 extends in the front-rear direction D1 on both sides in the width direction D3. The ridge line 37 may be located on a plane that is parallel to both the front-rear direction D1 and the width direction D3. The ridge line 37 may be annular (or circumferential). The widest portion 38 is located on the ridge line 37. The ridge line 37 connects to the ejection opening 25 at the first-most side (front side) in the front-rear direction D1.

[0061] The width direction D3 is perpendicular to both the front-rear direction D1 and the up-down direction D2. The inside in the width direction D3 is the side closer to the center of the container-equipped spray device 10X in the width direction D3. The outside in the width direction D3 is the side farther from the center of the container-equipped spray device 10X in the width direction D3.

[0062] The front-rear direction D1 is parallel to the ejection direction of the object to be ejected. The ejection direction is any direction in which the object to be ejected. When the object to be ejected is ejected divergently, in other words, when the object to be ejected is ejected in various directions within a certain angle range, the front-rear direction D1 is parallel to any direction in which the object to be ejected is ejected. In the illustrated example, the front-rear direction D1 is the direction in which the object to be ejected is mainly ejected.

[0063] The direction in which the object is mainly ejected is the direction in which the largest amount of object is ejected when the object is ejected in a divergent manner. In the illustrated example, liquid is ejected together with gas. In this example, the direction in which the liquid is mainly ejected is the direction in which the gas is ejected at the highest pressure.

[0064] The first side in the front-to-rear direction D1 is the front side, which means the side along which the ejected liquid travels, and the second side in the front-to-rear direction D1 is the rear side, which means the side opposite to the side along which the ejected liquid travels.

[0065] The up-down direction D2 is the direction in which the handle portion 30 and the container holding portion 45 face each other. The up-down direction D2 is the direction connecting the handle portion 30 and the container holding portion 45. The up-down direction D2 is also perpendicular to the front-rear direction D1.

[0066] The first side in the vertical direction D2 is the upper side and is closer to the container holding portion 45 than the handle portion 30. The first side in the vertical direction D2 is the side away from the handle portion 30. The second side in the vertical direction D2 is the lower side and is the side closer to the handle portion 30 than the container holding portion 45. The second side in the vertical direction D2 is the side away from the container holding portion 45.

[0067] The handle portion 30 is gripped by a user. The user holds the injection device 10 by gripping the handle portion 30. The handle portion 30 is an elongated portion. The handle portion 30 extends generally in the up-down direction D2.

[0068] As shown in Figures 1 and 10, the housing 20 includes a recess 26 located between the handle portion 30 and the intermediate portion 35. The recess 26 receives the crotch portion between the user's thumb and index portion. The thumb is placed on the second side in the width direction D3 of the handle portion 30. The fingers other than the thumb are placed on the first side in the width direction D3 of the handle portion 30. The portion of the flange portion 36 located on the second side in the front-to-rear direction D1 guides the thumb. The portion of the flange portion 36 located on the first side in the front-to-rear direction D1 guides the index finger.

[0069] The container holder 45 holds the container 70. The container holder 45 may hold the container 70 in a detachable manner.

[0070] In the illustrated example, the central axis CL70 of the container 70 held in the container holding portion 45 is inclined with respect to the front-to-rear direction D1. As shown in Fig. 8, the central axis CL70 of the container 70 held in the container holding portion 45 passes through the ejection opening 25. As shown in Fig. 1, the container 70 held in the container holding portion 45 moves away from the flange portion 36 in the up-down direction D2 as it moves away from the ejection opening 25 in the front-to-rear direction D1. The container 70 held in the container holding portion 45 is located on the first side (upper side) in the up-down direction D2, facing the second side (rear side) in the front-to-rear direction D1.

[0071] The container holder 45 may include a container guard 46 that covers the held container holder 45. The container guard 46 covers the container 70 from a radial direction of the container 70 that is perpendicular to the central axis CL70 of the container 70.

[0072] 1, the container guard 46 extends from the container 70 held by the container holder 45 in a direction opposite to the cap 73 along the central axis CL70. As shown in FIG. 6, the container guard 46 is located on a second side (rear side, user side) in the front-rear direction D1 from the container 70. The container guard 46 forms an end portion of the spray device 10 located on the second side (rear side, user side) in the front-rear direction D1.

[0073] 3, 5, and 6, the container guard 46 extends outward in the width direction beyond the container 70 held by the container holding portion 45. In other words, the container 70 held by the container holding portion 45 is located more inward than the container guard 46 in the width direction D3.

[0074] As shown in Figures 1, 3, and 11, the container guard 46 may include a recess 47. The recess 47 is located so as to face the cap 73 of the container 70 held in the container holding portion 45. The recess 47 faces the cap 73 from a radial direction perpendicular to the central axis CL70. The recess 47 provided in the container guard 46 exposes the cap 73. By providing the recess 47, the circumferential length of the portion of the container 70 exposed from the container guard 46, centered on the central axis CL70, is increased.

[0075] As shown in FIG. 2 , the housing 20 may specifically include a first housing component 22A and a second housing component 22B. The first housing component 22A and the second housing component 22B may be combined to form the entire housing 20. The first housing component 22A and the second housing component 22B may be combined to form the housing main body 21 of the housing 20. The first housing component 22A and the second housing component 22B may be arranged in the width direction D3. The first housing component 22A and the second housing component 22B may each be a divided piece obtained by dividing the housing 20 at the center in the width direction. The first housing component 22A and the second housing component 22B may be made of resin. The first housing component 22A and the second housing component 22B may be an injection-molded product.

[0076] 2, 4, and 8, the housing 20 includes a housing main body 21 and a rotation restricting member 23. The housing main body 21 includes a first housing component 22A and a second housing component 22B. The rotation restricting member 23 is detachable from the housing main body 21. The rotation restricting member 23 may be made of resin. The rotation restricting member 23 may also be an injection-molded product.

[0077] In the illustrated example, the rotation restricting member 23 is included in the container holding portion 45. The rotation restricting member 23 contacts the container nozzle portion 78 of the container 70 held in the container holding portion 45 to restrict rotation of the container nozzle portion 78. In the illustrated container 70, the container nozzle portion 78 includes a nut portion 78b. The container holding portion 45 includes an accommodating portion 23a that accommodates the nut portion 78b. The accommodating portion 23a includes an internal shape that is complementary to the external shape of the nut portion 78b. The internal shape of the accommodating portion 23a includes corners. When the nut portion 78b is accommodated in the accommodating portion 23a, relative rotation of the accommodating portion 23a and the nut portion 78b about the central axis CL70 is restricted.

[0078] Next, the gas flow path forming part 50 will be described. The gas flow path forming part 50 supplies gas toward the ejection opening 25. The gas flow path forming part 50 supplies compressed gas toward the ejection opening 25. The gas flow path forming part 50 may eject gas toward the ejection opening 25. The gas flow path forming part 50 is at least partially held by the housing 20.

[0079] The gas ejected from the gas flow path forming portion 50 is not particularly limited. The gas may be air. The gas may be nitrogen. The gas may be an inert gas. The type of gas may be selected depending on the application of the ejection device 10 and the object to be ejected from the ejection device 10. The gas may function as a gas for transporting the object to be ejected when it is ejected.

[0080] 2, the illustrated gas flow path forming unit 50 includes a distal nozzle member 51, a communicating member 60, and a connector 62. The distal nozzle member 51 is located at the distal end of the gas flow path forming unit 50. The connector 62 is located at the proximal end of the gas flow path forming unit 50. The communicating member 60 is located between the distal nozzle member 51 and the connector 62.

[0081] The tip nozzle member 51 supplies gas toward the ejection opening 25. As shown in FIG. 8, the tip nozzle member 51 is connected to the tip of the communicating member 60. The tip nozzle member 51 is supplied with gas from the communicating member 60. The tip nozzle member 51 supplies the gas supplied from the communicating member 60 toward the ejection opening 25. As shown in FIGS. 2 and 8, the tip nozzle member 51 is held in the housing main body 21 of the housing 20. The tip nozzle member 51 is held between the first housing part 22A and the second housing part 22B. The tip nozzle member 51 is positioned at the ejection opening 25. The tip nozzle member 51 may be made of metal.

[0082] As shown in Figure 8, the tip nozzle member 51 includes a gas nozzle portion 52, a bottom wall portion 54, and a side wall portion 55. The gas nozzle portion 52 has a gas flow path 53 formed therein that is connected to the communication member 60. The gas flow path 53 includes a tapered portion 53a. The tapered portion 53a tapers toward an opening 52a located at the tip of the gas nozzle portion 52. The gas flow path 53 extends in the front-rear direction D1. The opening 52a faces the ejection opening 25 along the front-rear direction D1.

[0083] The tip nozzle member 51 may be made of resin. The tip nozzle member 51 may be made of metal. The gas nozzle portion 52, the bottom wall portion 54, and the side wall portion 55 may be configured as separate parts. The gas nozzle portion 52, the bottom wall portion 54, and the side wall portion 55 may be molded as a single piece without any seams. The gas nozzle portion 52, the bottom wall portion 54, and the side wall portion 55 may be manufactured by cutting out without any seams.

[0084] As shown in FIG. 8 , the container nozzle portion 78 supplies the object to be injected to a region between the ejection opening 25 and the gas nozzle portion 52 in the front-rear direction D1. The central axis CL70 of the container 70 held by the container holding portion 45 passes through the ejection opening 25. In the illustrated example, the container opening 78a located at the tip of the container nozzle portion 78 is located between the ejection opening 25 and the opening 52a of the gas nozzle portion 52 in the front-rear direction D1. When the compressed gas is ejected from the opening 52a to the first side (front side) in the front-rear direction D1, a negative pressure is created in the region where the gas is ejected and moves at high speed. The container opening 78a of the container nozzle portion 78 is located in the region where this negative pressure is created. When the container opening 78a is open, the object to be injected in the container 70 is drawn forward of the gas nozzle portion 52. The object to be injected supplied from the container 70 is ejected together with the gas in the front-rear direction D1.

[0085] The bottom wall portion 54 extends from the gas nozzle portion 52. The bottom wall portion 54 extends from the gas nozzle portion 52 in a direction non-parallel to the direction in which gas is ejected from the gas nozzle portion 52. The bottom wall portion 54 extends from the gas nozzle portion 52 in a direction non-parallel to the front-rear direction. The bottom wall portion 54 may extend from the gas nozzle portion 52 in a direction perpendicular to the front-rear direction.

[0086] The bottom wall portion 54 includes a bottom surface 54a facing a first side in the front-rear direction D1. The bottom surface 54a extends in a direction non-parallel to the gas ejection direction from the gas nozzle portion 52. The bottom surface 54a may extend in a direction non-parallel to the front-rear direction. The bottom surface 54a may extend from the gas nozzle portion 52 in a direction perpendicular to the front-rear direction D1. The bottom surface 54a of the bottom wall portion 54 may be located at the same position as the tapered portion 53a or closer to the ejection opening 25 than the tapered portion 53a in the ejection direction or the front-rear direction D1. The bottom surface 54a of the bottom wall portion 54 may be located at the same position as the tapered portion 53a or closer to the first side (front) of the tapered portion 53a in the ejection direction or the front-rear direction D1. In conventional ejection devices, the bottom surface is located farther from the ejection opening 25 than the tapered portion in the ejection direction or the front-rear direction D1.

[0087] The side wall portion 55 extends from the bottom wall portion 54 in the front-to-rear direction D1. The side wall portion 55 is fixed to a portion of the housing 20 that forms the ejection opening 25. The side wall portion 55 may be tubular. The side wall portion 55 may be cylindrical or rectangular. A notch may be provided in the tubular side wall portion 55. The tip of the container nozzle portion 78 may pass through the notch and be positioned within the space surrounded by the bottom wall portion 54 and the side wall portion 55. The bottom wall portion 54 and the side wall portion 55 stabilize the ejection direction of the object and gas ejected from the ejection opening 25.

[0088] The connector 62 is connected to an external compressed gas source. The external compressed gas source is a compressed gas source supplied to the injection device 10. The connector 62 is connected to a tubular member 90 extending from the compressed gas source. The tubular member 90 is connected to a pressure source such as a compressor. The tubular member 90 may be a cylinder or a rectangular tube. The connector 62 and the tubular member may be detachable. The connector 62 may be made of metal.

[0089] In the illustrated example, the connector 62 is held by the handle portion 30. The connector 62 partially extends from the handle portion 30. The connector 62 extends from the handle portion 30 to the second side (lower side) in the up-down direction D2.

[0090] The communicating member 60 forms a gas flow path from the connector 62 to the tip nozzle member 51. The communicating member 60 may be directly connected to the connector 62. The communicating member 60 may be directly connected to the connector 62 so that gas can be supplied from the connector 62. The communicating member 60 may be directly connected to the tip nozzle member 51 as shown in FIG. 8. The communicating member 60 may be directly connected to the tip nozzle member 51 so that gas can be supplied to the tip nozzle member 51. The communicating member 60 may be a tubular member made of, for example, rubber or resin. The communicating member 60 may be cylindrical or rectangular. The communicating member 60 may be a long, narrow hole formed in a resin block or a metal block.

[0091] As shown in Figure 2, the illustrated communicating member 60 includes a distal end tube 60a, an on-off valve 61, and a proximal end tube 60b. The distal end tube 60a and the proximal end tube 60b are cylindrical members made of rubber, resin, or the like. The on-off valve 61 is held by the housing 20. The on-off valve 61 is located within the handle portion 30. The on-off valve 61 is not particularly limited and may be any of a variety of valves.

[0092] The distal end side tube 60a extends between the distal end nozzle member 51 and the on-off valve 61. The distal end side tube 60a is connected to the distal end nozzle member 51 and the on-off valve 61. The proximal end side tube 60b extends between the connector 62 and the on-off valve 61. The proximal end side tube 60b is connected to the connector 62 and the on-off valve 61.

[0093] Next, the opening / closing operation member 49 will be described. The opening / closing operation member 49 opens and closes the gas flow path formed by the gas flow path forming section 50. The configuration of the opening / closing operation member 49 is not particularly limited. The opening / closing operation member 49 may act on the gas flow path forming section 50 by operating to open or close the flow path of the gas flow path forming section 50.

[0094] In the illustrated example, the opening / closing operation member 49 acts on the opening / closing valve 61 by operating. The opening / closing operation member 49 may come into contact with the opening / closing valve 61 by operating, thereby opening the flow path of the gas flow path forming unit 50. The opening / closing operation member 49 may move away from the opening / closing valve 61 and close the flow path of the gas flow path forming unit 50 when no external force for operation is applied by the user.

[0095] In the illustrated example, the opening / closing operation member 49 is movably held by the housing 20. The opening / closing operation member 49 is located on the front side (first side) in the front-to-rear direction D1 of the handle portion 30. It opens the gas flow path by moving toward the rear side (second side) in the front-to-rear direction D1. The illustrated opening / closing operation member 49 is held by the housing 20 so as to be swingable. The opening / closing operation member 49 is not limited to the illustrated example, and may also be held by the housing 20 so as to be linearly movable.

[0096] The opening / closing operation member 49 may be made of resin. The opening / closing operation member 49 may be an injection-molded product. The illustrated opening / closing operation member 49 includes an opening / closing lever portion 49a and a spring portion 49b that are integrally molded. The opening / closing lever portion 49a is held in the housing 20 so as to be able to swing. The spring portion 49b is connected at one end to the opening / closing lever portion 49a. The spring portion 49b is fixed at the other end to the housing 20. The spring portion 49b pushes the opening / closing lever portion 49a. The opening / closing lever portion 49a is pushed by the spring portion 49b toward a position where the gas flow path of the gas flow path forming portion 50 is closed.

[0097] Next, the weight 65 will be described. The weight 65 is disposed inside the housing 20. In the illustrated example, the weight 65 is located inside the housing 20 made of resin. The housing 20 made of resin is lightweight. The weight 65 gives the injector 10 a comfortable feeling of weight, which can improve the operability of the injector 10.

[0098] The weight 65 may be a metal block. In the example shown in FIG. 2, the weight 65 is a metal plate. The metal plate weight 65 is fixed to the housing 20. The injection device 10 may include multiple weights 65. In the example shown in FIG. 2, the weights 65 arranged in the housing 20 include a first weight 66 and a second weight 67. The first weight 66 is fixed to the first housing part 22A, and the second weight 67 is fixed to the second housing part 22B. The first weight 66 and the second weight 67 are located at the same position in the front-to-rear direction D1. The first weight 66 and the second weight 67 are located at the same position in the up-down direction D2. The first weight 66 and the second weight 67 are located apart in the width direction D3. The communicating member 60 (base end side tube 60b) is located between the first weight 66 and the second weight 67.

[0099] 2, the weight 65 is located on the handle portion side of the flange portion 36 in the vertical direction D2. In other words, the weight 65 is located on the second side (lower side) in the vertical direction D2 than the flange portion 36. In the example shown in FIG. 2, the weight 65 is located inside the handle portion 30.

[0100] 2, weight 65 is located at least partially on the rear side (second side) in the front-rear direction D1 of axis AX2 connecting recess 26 and lower end 31a in the up-down direction D2 of region 31 that is the rear end (second side end) in the front-rear direction D1 of handle portion 30. Weight 65 is located closer to the palm of the hand gripping handle portion 30 than the four fingers other than the thumb.

[0101] Next, we will explain the operation during use of the container-equipped spray device 10X having the above configuration and the spray device 10. In the following explanation, liquid as a spray target is supplied from the container 70, and the spray device 10 sprays the liquid.

[0102] A user can spray liquid from the spray device 10 by operating the opening / closing operation member 49. By operating the opening / closing operation member 49, gas is sprayed from the opening 52a of the gas nozzle portion 52 of the gas flow path forming portion 50 toward the spray opening 25. The gas moving at high speed from the gas nozzle portion 52 toward the spray opening 25 creates a negative pressure in the area between the gas nozzle portion 52 and the spray opening 25. A negative pressure is created in the area surrounded by the bottom wall portion 54 and the side wall portion 55 of the tip nozzle member 51. As a result of the creation of the negative pressure, liquid is supplied from the container nozzle portion 78 of the container 70 to the area between the gas nozzle portion 52 and the spray opening 25. The liquid supplied from the container opening 78a is sprayed in the front-to-rear direction D1 together with the gas supplied from the opening 52a.

[0103] In the illustrated example, the container 70 is held by the container holder 45 at an angle relative to the front-to-rear direction D1. As shown in FIGS. 1 and 3, the container 70 held by the container holder 45 moves away from the flange portion 35 in the up-down direction D2 as it moves away from the ejection opening 25 in the front-to-rear direction D1. That is, the container 70 held by the container holder 45 is located on the first side (upper side) in the up-to-down direction D2, but on the rear side (second side) in the front-to-rear direction D1. The central axis CL70 of the container 70 held by the container holder 45 passes through the ejection opening 25. According to this example, a user may mistakenly believe that liquid is being ejected along the central axis CL70.

[0104] However, in the illustrated example, an intermediate portion 35 is located between the handle portion 30 and the container holding portion 45 of the housing 20. The intermediate portion 35 includes the ejection opening 25. The intermediate portion 35 includes flange portions 36 that bulge on both sides in the width direction D3. When observed from the width direction D3, the ejection direction of the liquid from the ejection opening 25 is located on an extension of the flange portions 36.

[0105] According to this example, the flange portion 36 allows the user to understand the direction in which the liquid is sprayed, without causing the user to mistakenly believe that the liquid is sprayed along the central axis CL70 of the container 70. Therefore, the liquid can be prevented from being sprayed in an unintended direction, and the liquid can be sprayed in the intended direction.

[0106] Furthermore, the container holding portion 45 holds the container 70 so that the central axis CL70 passes through the ejection opening 25 of the housing 20. Therefore, the ejection device 10 can be made smaller in size in the front-rear direction D1.

[0107] As shown in Figure 2, the spray device 10 includes a weight 65. The weight 65 is located on the handle portion 30 side of the flange portion 36 in the vertical direction D2. According to this embodiment, the weight 65 is located below the flange portion 36 in the vertical direction D2. In the spray device 10 in which the container 70 is held above the flange portion 36 in the vertical direction D2, the center of gravity can be lowered in the vertical direction. Therefore, the spray device 10 is easy to handle. Liquid can be stably sprayed in the intended direction.

[0108] In the illustrated spray device 10, the housing 20 may be made of resin. The weight 65 may be located inside the handle portion 30. A resin housing 20 can reduce the weight. On the other hand, by placing the weight in the handle portion 30, the spray device 10 can be held stably during use. Therefore, the spray device 10 is easy to handle. Liquid can be stably sprayed in the intended direction.

[0109] As shown in FIG. 2, the housing 20 includes a recess 26 located between the handle portion 30 and the intermediate portion 35, which receives the crotch portion between the user's thumb and index portion. The weight 65 may be located at least partially rearward in the front-to-rear direction from an axis AX2 connecting the recess 26 and the lower end 31a in the up-down direction of the region 31 that is the rear end of the handle portion 30 in the front-to-rear direction. According to this embodiment, the weight 65 is located near the base of the thumb or near the palm of the hand holding the handle portion 30. This makes the spray device 10 easy to handle. Liquid can be sprayed stably in the intended direction.

[0110] Furthermore, as shown in FIG. 2, the spray device 10 further includes an opening / closing operation member 49 that opens and closes the gas flow path formed by the gas flow path forming portion 50. The opening / closing operation member 49 is located on the front side of the handle portion 30 in the front-rear direction D1. The opening / closing operation member 49 opens the gas flow path formed by the gas flow path forming portion 50 by moving it toward the rear side in the front-rear direction D1. In this specific example, liquid is sprayed by moving the opening / closing operation member 49 backward using the index finger, middle finger, or the like. Since the weight 65 is located near the base of the thumb or near the palm of the hand holding the handle portion 30, the opening / closing operation member 49 can be easily operated. Therefore, the spray device 10 is easy to handle. The object to be sprayed can be stably sprayed in the intended direction.

[0111] The position of the center of gravity of the spray device 10 can be adjusted by the arrangement of the weight 65. The position of the center of gravity of the container-equipped spray device 10X can be adjusted by the arrangement of the weight 65. The center of gravity of the spray device 10 may be located within the handle portion 30. The center of gravity of the container-equipped spray device 10X may be located within the handle portion 30. When the container 70 is filled with the substance to be sprayed to its maximum capacity, the center of gravity of the container-equipped spray device 10X may be located within the handle portion 30. When the container 70 is not filled with the substance to be sprayed, the center of gravity of the container-equipped spray device 10X may be located within the handle portion 30. By locating the center of gravity in the handle portion 30, the spray device 10 and the container-equipped spray device 10X can be easily handled. Liquid can be stably sprayed in the intended direction.

[0112] In the container-equipped spray device 10X, the container 70 is held by the housing 20 of the spray device 10. During use of the container-equipped spray device 10X, the container 70 held by the housing 20 may come into contact with the outside and be damaged.

[0113] 1 and 3, in the illustrated container-equipped spray device 10X, the container 70 is held by the container holder 45 at an incline with respect to the front-to-rear direction D1. The container 70 held by the container holder 45 moves away from the flange portion 35 in the up-down direction D2 as it moves away from the ejection opening 25 in the front-to-rear direction D1. That is, the container 70 held by the container holder 45 is located on the first side (upper side) in the up-to-down direction D2, on the rear side (second side) in the front-to-rear direction D1. The central axis CL70 of the container 70 held by the container holder 45 passes through the ejection opening 25. A container 70 held by an inclined spray device 10 is prone to damage due to contact with the outside.

[0114] To address this problem, in the illustrated spray device 10, the container holder 45 includes a container guard 46 that covers the container 70 in a radial direction perpendicular to the central axis CL70 of the container 70. As shown in FIGS. 1 and 3, the container guard 46 extends from the container 70 held by the container holder 45 in a direction opposite to the cap 73 along the central axis CL70. According to the illustrated example, the rear end of the container 70 can be protected by the container guard 46. This can prevent damage to the container 70.

[0115] 6, the container guards 46 are positioned on both outer sides in the width direction D3 of the containers 70 held by the container holders 45. That is, the containers 70 held by the container holders 45 are positioned inside the container guards 46 in the width direction D3. Therefore, the containers 70 can be stably protected by the container guards 46. Damage to the containers 70 can be suppressed.

[0116] Before using the container-equipped spray device 10X, a container 70 containing a liquid as the object to be sprayed is prepared. First, the container 70 is attached to the container holding portion 45 of the spray device 10. At this time, the nut portion 78b of the container nozzle portion 78 is accommodated in the accommodation portion 23a of the rotation restricting member 23 located in the container holding portion 45. This allows the rotation of the container nozzle portion 78 of the container 70 relative to the housing 20 to be restricted.

[0117] Next, the opening of the container opening 78a is adjusted by rotating the cap 73 relative to the container nozzle portion 78. This allows the amount of liquid ejected from the container-equipped spray device 10X to be adjusted to an appropriate amount.

[0118] Furthermore, the liquid in the container 70 may be refilled while the container-equipped spray device 10X is in use. When refilling the container 70 with liquid, the container 70 is removed from the housing 20, and the refilled container 70 is attached to the housing 20. Furthermore, when the container-equipped spray device 10X is not in use or when use of the container-equipped spray device 10X is discontinued, the cap 73 is rotated relative to the container nozzle portion 78 to close the container opening 78a, thereby preventing liquid from leaking from the container 70.

[0119] In this manner, when using the container-equipped spray device 10X, the container 70 is handled. When handling the container 70, if the container portion 71 is grasped, the container portion 71 and the cap 73 may separate. If the container portion 71 and the cap 73 separate, liquid may spill out of the container 70.

[0120] To address this problem, the container holding portion 45 of the housing 20 includes a recess 47 at a position facing the cap 73. More specifically, as shown in FIGS. 1 and 3 , the container guard 46 includes a recess 47 at a position facing the cap 73. The recess 47 increases the circumferential length of the portion of the container 70 exposed from the container guard 46, centered on the central axis CL70. Therefore, when handling the container 70, for example, when attaching or detaching the container 70 to or from the housing 20 or adjusting the opening degree of the container opening 78a, the container 70 can be easily and stably held. In particular, because the recess 47 is located at the position of the cap 73, the cap 73 can be easily and stably held. Handling the container 70 by holding the cap 73 can prevent the cap 73 and the storage portion 71 from separating, which would otherwise cause liquid to leak from the storage portion 71.

[0121] In at least a portion of the region where the recess 47 is located in the direction along the central axis CL70 of the container 70 held by the container holder 45, the portion may be covered by the container guard 46, the portion being less than 50% of the circumferential length about the central axis CL70. That is, in at least a portion of the region where the recess 47 is located in the direction along the central axis CL70, the cap 73 may be exposed, the portion being 50% or more of the total circumferential length about the central axis CL70. According to this specific example, the cap 73 can be more stably gripped when handling the container 70.

[0122] In at least a portion of the area in which the recess 47 is located in the direction along the central axis CL70, the proportion of the portion covered by the vessel guard 46 out of the total circumferential length centered on the central axis CL70 may be 0% or more and less than 50%, or 0% or more and 45% or less, or 0% or more and 40% or less.

[0123] As described above, the container opening 78a of the container nozzle portion 78 can be opened or closed by rotating the container nozzle portion 78 relative to the cap 73. The opening degree of the container opening 78a of the container nozzle portion 78 can be adjusted by rotating the container nozzle portion 78 relative to the cap 73. As shown in FIG. 4 , the container holding portion 45 includes a rotation restricting member 23. The rotation restricting member 23 is formed with a housing portion 23a. The nut portion 78b of the container nozzle portion 78 is inserted into the housing portion 23a of the rotation restricting member 23. When the nut portion 78b comes into contact with the housing portion 23a, the rotation of the container nozzle portion 78 relative to the rotation restricting member 23 and the container holding portion 45 is restricted.

[0124] In the illustrated configuration, the rotation restricting member 23 may be damaged when the container 70 is attached to or detached from the container holder 45, or when the cap 73 is rotated with the container nozzle 78 being restricted in rotation by the rotation restricting member 23. In the illustrated example, the rotation restricting member 23 is detachable from the housing main body 21 of the housing 20. Therefore, a damaged rotation restricting member 23 can be removed from the housing main body 21, and a new rotation restricting member 23 can be attached to the housing main body 21. In other words, by making the rotation restricting member 23, which is easily damaged, replaceable, the container-equipped spray device 10X and other parts of the spray device 10 can be used continuously.

[0125] After using the container-equipped spray device 10X and the spray device 10, the area around the ejection opening 25 is cleaned. In the illustrated example, a tip nozzle member 51 of the gas flow path forming member 50 is attached to the ejection opening 25. As shown in FIG. 8 , the tip nozzle member 51 includes a gas nozzle portion 52 that ejects gas and a bottom wall portion 54 that extends from the gas nozzle portion 52 in a direction non-parallel to the ejection direction of the gas from the gas nozzle portion 52. A container opening 78a of the container nozzle portion 78 of the container 70 is located between the ejection opening 25 and the gas nozzle portion 52. The container 70 supplies liquid between the ejection opening 25 and the gas nozzle portion 52.

[0126] The gas nozzle portion 52 includes a gas flow path 53 including a tapered portion 53a that tapers toward the gas ejection opening 25 in the gas ejection direction. The bottom surface 54a of the bottom wall portion 54 is located in the same position as the tapered portion 53a or in a position closer to the ejection opening 25 than the tapered portion 53a in the gas ejection direction. The bottom surface 54a of the bottom wall portion 54 is located near the ejection opening 25 in the front-to-rear direction D1. Therefore, the bottom surface 54a can be easily cleaned.

[0127] In conventional sprayers, the bottom surface is located farther from the spray opening than the tapered portion in the spray direction or front-to-rear direction D1. Therefore, in the sprayer 10 shown in the figure, the bottom surface 54a is located in the same position as the tapered portion 53a in the spray direction or closer to the spray opening 25 than the tapered portion 53a, making it much easier to clean the bottom surface 54a.

[0128] The spray device with a container and the spray device may be placed on a horizontal surface such as a workbench. For example, when work using the spray device with a container and the spray device is stopped, the spray device with a container and the spray device may be placed on a horizontal surface such as a workbench. When the spray device with a container and the spray device are placed on a horizontal surface, the nozzle tip opening of the container may face downward in the vertical direction. In this case, the liquid contained in the container may leak out of the container due to gravity.

[0129] To address this problem, it may be possible to use a base or the like to hold the container-equipped spray device and the spray device in an appropriate position. However, a cylindrical member (such as a hose) that supplies compressed gas may be connected to the container-equipped spray device and the spray device. An external force may be applied to the container-equipped spray device and the spray device through the cylindrical member. This external force may cause the container-equipped spray device and the spray device to come off the base. As a result, the liquid contained in the container may leak out of the container due to gravity. In other words, the base cannot sufficiently prevent the liquid from leaking from a container-equipped spray device placed on a horizontal surface.

[0130] 9 to 12 show the container-equipped spray device 10X and the spray device 10 placed on a horizontal surface 5. FIG. 9 shows the container-equipped spray device 10X and the spray device 10 from a first side (upper side) in the up-down direction D2. FIG. 10 shows the container-equipped spray device 10X and the spray device 10 from a first side (front side) in the front-rear direction D1. FIGS. 11 and 12 show the container-equipped spray device 10X and the spray device 10 from a direction perpendicular to the horizontal surface 5. FIG. 12 shows the container-equipped spray device 10X and the spray device 10 with the first housing part 22A removed.

[0131] 9 and 10, when the container-equipped spray device 10X is placed on a horizontal surface 5, the container-equipped spray device 10X comes into contact with the horizontal surface 5 at three positions. When the container-equipped spray device 10X is placed on the horizontal surface 5, the spray device 10 comes into contact with the horizontal surface 5 at three positions. When the container-equipped spray device 10X is placed on the horizontal surface 5, the container nozzle portion 78 opens upward from a direction parallel to the horizontal surface 5. In other words, when the container-equipped spray device 10X is placed on the horizontal surface 5, the container opening 78a opens upward from a direction parallel to the horizontal surface 5.

[0132] That is, when the container-equipped spray device 10X is placed on the horizontal surface 5 and no external force other than gravity is applied to it, the container-equipped spray device 10X comes into contact with the horizontal surface at three positions. When the container-equipped spray device 10X is placed on the horizontal surface 5 and no external force other than gravity is applied to it, the spray device 10 comes into contact with the horizontal surface at three positions. Therefore, the posture of the container-equipped spray device 10X and the spray device 10 on the horizontal surface 5 is stable. In addition, when the container-equipped spray device 10X is placed on the horizontal surface 5 and no external force other than gravity is applied to it, the container nozzle portion 78 opens upward from the horizontal direction. When the container-equipped spray device 10X is placed on the horizontal surface 5 and no external force other than gravity is applied to it, the container opening 78a opens upward from the horizontal direction. As a result, when the container-equipped spray device 10X is placed on the horizontal surface 5, it is possible to prevent the liquid contained in the container 70 from leaking from the container nozzle portion 78.

[0133] When no external force other than gravity is applied to the container-equipped spray device 10X placed on a horizontal surface 5, the container-equipped spray device 10X comes into contact with the horizontal surface at only three positions. When no external force other than gravity is applied to the container-equipped spray device 10X placed on a horizontal surface 5, the spray device 10X comes into contact with the horizontal surface at only three positions.

[0134] When the container 70 is held by the container holding portion 45 and the spray device 10 is placed on the horizontal surface 5, 70% or more of the internal volume of the container 70 may be located below the lower end of the container opening 78a of the container nozzle portion 78. In other words, when the container-equipped spray device 10X is placed on the horizontal surface 5, 70% or more of the internal volume of the container 70 may be located below the lower end of the container opening 78a of the container nozzle portion 78. According to this specific example, when the spray device 10 is placed on the horizontal surface 5, such as a workbench, during a work interruption, the liquid contained in the container 70 can be more effectively prevented from leaking from the container nozzle portion 78.

[0135] When the container 70 is held in the container holding portion 45 and the spray device 10 is placed on a horizontal surface 5, the ratio of the volume of the portion of the container nozzle portion 78 located below the lower end of the container opening 78a to the internal volume of the container 70 may be 70% or more and 100% or less, 75% or more and 100% or less, or 80% or more and 100% or less.

[0136] 9 to 12, the three positions of the spray device 10 that contact the horizontal surface 5 may be a first contact position CP1 on the flange portion 36, a second contact position CP2 on the handle portion 30, and a third contact position CP3 on the container holding portion 45. According to this specific example, when the spray device 10 is placed on the horizontal surface 5 and no external force other than gravity is applied to it, the spray device 10 contacts the horizontal surface at three positions. The three positions are distributed among the flange portion 36, the handle portion 30, and the container holding portion 45. By distributing the three contact positions, the attitude of the spray device 10 on the horizontal surface 5 is more effectively stabilized. Therefore, leakage of the liquid contained in the container 70 from the container nozzle portion 78 can be more effectively prevented.

[0137] 11 and 12, when projected onto the horizontal plane 5, the ejection opening 25 and the third contact position CP3 are located on opposite sides of a reference axis AX1 that passes through the first contact position CP1 and the second contact position CP2. The third contact position CP3 is located at the rear end portion of the container holding portion 45 that is farthest from the ejection opening 25 in the front-rear direction D1. According to this specific example, the three contact positions CP1, CP2, and CP3 are spaced apart, which more effectively stabilizes the attitude of the ejection device 10 on the horizontal plane 5. Therefore, leakage of the liquid contained in the container 70 from the container nozzle portion 78 can be more effectively prevented.

[0138] 11 and 12, the container holder 45 holds the container 70 so that the container 70 moves away from the flange portion 36 in the up-down direction D2 as it moves away from the ejection opening 25 in the front-rear direction D1. According to this specific example, the third contact position CP3 is significantly separated from the first contact position CP1 and the second contact position CP2 in the up-down direction D2. By distributing the three contact positions CP1, CP2, and CP3, the attitude of the spray device on the horizontal plane is more effectively stabilized. Therefore, leakage of the liquid contained in the container 70 from the container nozzle portion 78 can be more effectively prevented.

[0139] 12, a gas flow path forming part 50 is held in the housing 20. The gas flow path forming part 50 includes a tip nozzle member 51, a connector 62, and a communicating member 60. The tip nozzle member 51 supplies gas toward the ejection opening 25. The connector 62 is connected to a tubular member 90 that supplies compressed gas. The communicating member 60 forms a gas flow path from the connector 62 to the tip nozzle member 51.

[0140] 11 and 12, in the projection onto the horizontal plane 5, the ejection opening 25 is located on the opposite side from the third contact position CP3 and the connector 62 with respect to a reference axis AX1 that passes through the first contact position CP1 and the second contact position CP2. That is, in the projection onto the horizontal plane 5, the ejection opening 25 is located on the opposite side from the third contact position CP3 with respect to the reference axis AX1. In the projection onto the horizontal plane 5, the ejection opening 25 is located on the opposite side from the reference axis AX1. In the projection onto the horizontal plane 5, the third contact position CP3 is located on the same side from the reference axis AX1.

[0141] According to this specific example, when the tubular member 90, which is connected to an external compressed gas source, is connected to the connector 62, the container-equipped spray device 10X and the spray device 10 may be subjected to an external force from the tubular member 90. According to this specific example, in a projection onto the horizontal plane 5, the third contact position CP3 and the connector 62 are located on the opposite side from the ejection opening 25, with the reference axis AX1 passing through the first contact position CP1 and the second contact position CP2 as the center. Furthermore, in a projection onto the horizontal plane 5, the third contact position CP3 and the connector 62 are located on the same side with respect to the reference axis AX1. Therefore, the force applied to the container-equipped spray device 10X and the spray device 10 from the tubular member 90 tends to act to push the spray device 10, which is in contact with the horizontal plane 5 at the first contact position CP1 and the second contact position CP2, toward the horizontal plane 5 at the third contact position CP3. This makes it possible to more effectively maintain the spray device 10 in a position in contact with the horizontal plane 5 at the three contact positions CP1, CP2, and CP3. Therefore, the liquid contained in the container 70 can be more effectively prevented from leaking out from the container nozzle portion 78.

[0142] 12, the injection device 10 further includes a weight 65 located within the housing 20. In projection onto the horizontal plane 5, the ejection opening 25, the third contact position CP3, and the weight 65 are located on opposite sides of a reference axis AX1 that passes through the first contact position CP1 and the second contact position CP2. That is, in projection onto the horizontal plane 5, the ejection opening 25 and the third contact position CP3 are located on opposite sides of the reference axis AX1. In projection onto the horizontal plane 5, the ejection opening 25 and the weight 65 are located on opposite sides of the reference axis AX1. In projection onto the horizontal plane 5, the third contact position CP3 and the weight 65 are located on the same side of the reference axis AX1.

[0143] According to this specific example, the weight 65 acts on the spray device 10 so as to push the spray device 10, which is in contact with the horizontal surface 5 at the first contact position CP1 and the second contact position CP2, toward the horizontal surface 5 at the third contact position CP3. This more effectively prevents the spray device 10 from rotating around the reference axis AX1 in a direction in which the third contact position CP3 moves away from the horizontal surface 5. This more effectively maintains the spray device 10 in a position in which it is in contact with the horizontal surface 5 at the three contact positions CP1, CP2, and CP3. This more effectively prevents the liquid contained in the container 70 from leaking out of the container nozzle portion 78.

[0144] The position of the center of gravity of the injection device 10 can be adjusted by arranging the weight 65. When projected onto the horizontal plane 5, the ejection opening 25 may be located on the opposite side of the third contact position CP3 and the center of gravity of the injection device 10 with respect to a reference axis AX1 that passes through the first contact position CP1 and the second contact position CP2.

[0145] Similarly, the position of the center of gravity of the container-equipped spray device 10X can be adjusted by arranging the weight 65. When projected onto the horizontal plane 5, the ejection opening 25 may be located on the opposite side of the third contact position CP3 and the center of gravity of the container-equipped spray device 10X, with the reference axis AX1 passing through the first contact position CP1 and the second contact position CP2 as the center. The center of gravity of the container-equipped spray device 10X may be the center of gravity of the container-equipped spray device 10X when the container 70 is filled with the maximum amount of the object to be sprayed that it can accommodate.

[0146] That is, in the projection onto the horizontal plane 5, the ejection opening 25 and the third contact position CP3 are located on opposite sides of each other with respect to the reference axis AX1. In the projection onto the horizontal plane 5, the ejection opening 25 and the center of gravity of the spray device 10 or the container-equipped spray device 10X may be located on opposite sides of each other with respect to the reference axis AX1. In the projection onto the horizontal plane 5, the third contact position CP3 and the center of gravity of the spray device 10 or the container-equipped spray device 10X may be located on the same side of each other with respect to the reference axis AX1.

[0147] According to this specific example, the weight of the spray device 10 or the container-equipped spray device 10X acts on the spray device 10, which is in contact with the horizontal surface 5 at the first contact position CP1 and the second contact position CP2, so as to push the spray device 10 toward the horizontal surface 5 at the third contact position CP3. This more effectively prevents the spray device 10 from rotating around the reference axis AX1 in a direction in which the third contact position CP3 moves away from the horizontal surface 5. This more effectively maintains the spray device 10 in a position in which it is in contact with the horizontal surface 5 at the three contact positions CP1, CP2, and CP3. This more effectively prevents the liquid contained in the container 70 from leaking from the container nozzle portion 78.

[0148] As shown in Fig. 9, the intermediate portion 35 includes a flange portion 36 that is widened in the width direction. The flange portion 36 includes a widest portion 38 where the dimension along the width direction D3 is maximum. The flange portion 36 includes a ridge line 37. The flange portion 36 may include the widest portion 38 on the ridge line 37. As shown in Figs. 11 and 12, when the container-equipped spray device 10X is placed on a horizontal surface 5 and projected onto the horizontal surface 5, the widest portion 38 facing the ejection opening 25 and the horizontal surface 5 may be located on the opposite side from the third contact position CP3, with a reference axis AX1 that passes through the first contact position CP1 and the second contact position CP3 as the center.

[0149] According to this specific example, the widest portion 38 on the flange portion 36 can more effectively prevent the spray device 10 from rotating around the reference axis AX1 in a direction in which the third contact position CP3 moves away from the horizontal plane 5. The spray device 10 can be more effectively maintained in a position in which it is in contact with the horizontal plane 5 at the three contact positions CP1, CP2, and CP3. Therefore, it is possible to more effectively prevent the liquid contained in the container 70 from leaking out of the container nozzle portion 78.

[0150] 9 to 12, the arrangement state of the container-equipped spray device 10X when placed on the horizontal surface 5 has been described. The arrangement state (posture) of the container-equipped spray device 10X described above may be obtained regardless of the amount of the object to be sprayed contained in the container 70. The arrangement state (posture) of the container-equipped spray device 10X described above may be obtained when the container 70 is filled with the maximum amount of the object to be sprayed that can be contained therein.

[0151] In the present embodiment described above, the first spray device 10 sprays the object to be sprayed from the spray opening 25. The spray device 10 includes a housing 20 that includes the spray opening 25. The housing 20 includes a container holder 45 configured to hold a container 70 that includes a container opening 78a for supplying the contained object to be sprayed. When the container 70 is held in the container holder 45 and the spray device 10 is placed on a horizontal surface 5, the spray device 10 contacts the horizontal surface 5 at three positions CP1, CP2, and CP3, and the container opening 78a opens upward relative to a direction parallel to the horizontal surface 5.

[0152] In the present embodiment described above, the second spraying device 10 sprays the object to be sprayed from the spray opening 25 using gas. The second spraying device 10 includes a housing 20 including the spray opening 25 and a gas flow path forming unit 50 held by the housing 20. The housing 20 includes a container holding unit 45 configured to hold a container 70 that contains the object to be sprayed. The gas flow path forming unit 50 includes an opening 52a that is arranged facing the spray opening 25 and sprays gas toward the spray opening 25. The container 70 includes a container opening 78a that supplies the object to be sprayed to a region between the spray opening 25 and the opening 52a. When the container 70 is held by the container holding unit 45 and the spraying device 10 is placed on a horizontal surface 5, the spraying device 10 contacts the horizontal surface 5 at three positions, and the container opening 78a opens upward relative to a direction parallel to the horizontal surface 5.

[0153] The first and second spray devices 10 according to the present embodiment provide the following advantageous effects. When the spray device 10 is placed on the horizontal surface 5 and no external force other than gravity is applied to the spray device 10, the spray device 10 comes into contact with the horizontal surface 5 at three positions CP1, CP2, and CP3. This stabilizes the posture of the spray device 10 on the horizontal surface 5. In addition, when the spray device 10 is placed on the horizontal surface 5 and no external force other than gravity is applied to the spray device 10, the container nozzle portion 78 opens upward from the horizontal direction. This prevents the object to be sprayed contained in the container from leaking out of the container nozzle portion 78 when the spray device 10 is placed on a horizontal surface such as a workbench during a work interruption.

[0154] In the present embodiment described above, the third spray device 10 sprays the target object from the spray opening 25. The spray device 10 includes a housing 20 including the spray opening 25. The housing 20 includes a handle portion 30 that is gripped by a user, a container holding portion 45 configured to hold a container 70 that contains the target object, and an intermediate portion 35 located between the handle portion 30 and the container holding portion 45 and including the spray opening 25. The central axis CL70 of the container 70 passes through the spray opening 25 when held in the housing 20. The intermediate portion 35 includes flange portions 36 that bulge on both sides in the width direction D3. The width direction D3 is perpendicular to both the front-rear direction D1 and the up-down direction D2. The front-rear direction D1 is parallel to the spray direction of the target object. The up-down direction D2 is the direction in which the handle portion 30 and the container holding portion 45 face each other and is perpendicular to the front-rear direction D1. When observed from the width direction D3, the direction in which the object to be jetted from the jetting opening 25 is along the extension line of the flange portion .

[0155] The third spray device 10 according to this embodiment has the following advantageous effects. The container holder 45 holds the container 70 so that the central axis CL70 of the container 70 passes through the ejection opening 25 of the housing 20. This allows the spray device 10 to be miniaturized in the front-to-rear direction D1. Furthermore, the ejection direction of the object to be sprayed from the ejection opening 25 is along an extension of the flange portion 36 when observed from the width direction D3. This allows the user to understand the ejection direction of the object to be sprayed by the flange portion 36, without misleading the user into thinking that the object to be sprayed is being ejected along the central axis CL70 of the container 70. This prevents the object from being ejected in an unintended direction, and allows the object to be ejected in the intended direction.

[0156] In the present embodiment described above, the fourth spray device 10 sprays the target object from the spray opening 25. The spray device 10 includes a housing 20 including the spray opening 25 and a weight 65 located within the housing 20. The housing 20 includes a handle portion 30 gripped by a user, a container holding portion 45 configured to hold a container 70 containing the target object, and an intermediate portion 35 located between the handle portion 30 and the container holding portion 45 and including the spray opening 25. The intermediate portion 35 includes flange portions 36 that bulge on both sides in the width direction D3 and extend in the front-to-rear direction D1. The width direction D3 is perpendicular to both the front-to-rear direction D1 and the up-to-down direction D2. The front-to-rear direction D1 is parallel to the spray direction of the target object. The up-to-down direction is the direction in which the handle portion 30 and the container holding portion 45 face each other and is perpendicular to the front-to-rear direction D1. The weight 65 is located on the handle portion 30 side of the flange portion 36 in the up-to-down direction D2.

[0157] The fourth spray device 10 according to this embodiment has the following advantages. The weight 65 is located below the flange portion 36 in the vertical direction D2. In the spray device 10 in which the container 70 is held above the flange portion 36 in the vertical direction D2, the center of gravity of the container-equipped spray device 10X can be lowered in the vertical direction. Therefore, the spray device 10 is easy to handle. The object to be sprayed can be stably sprayed in the intended direction.

[0158] In the present embodiment described above, the fifth spray device 10 sprays the target substance from the spray opening 25. The spray device 10 includes a housing 20 including the spray opening 25 and a weight 65 located within the housing 20. The housing 20 includes a handle portion 30 gripped by a user, a container holding portion 45 configured to hold a container 70 containing the target substance, and a middle portion 35 located between the handle portion 30 and the container holding portion 45 and including the spray opening 25. The housing 20 includes a recess 26 located between the handle portion 30 and the middle portion 35 to receive the crotch area between the user's thumb and index finger. The weight 65 is located at least partially rearward in the front-rear direction D1 of an axis AX2 connecting the recess 26 and a lower end 31a, in the up-down direction D2, of a region 31 that is the rear end of the handle portion 30 in the front-rear direction D1. The front-rear direction D1 is parallel to the spray direction of the target substance. The up-down direction D2 is the direction in which the handle portion 30 and the container holding portion 45 face each other, and is perpendicular to the front-rear direction D1.

[0159] The fifth spray device 10 according to this embodiment has the following advantages. The weight 65 is located near the base of the thumb or near the palm of the hand holding the handle portion 30. This makes the spray device 10 easy to handle. The object to be sprayed can be sprayed stably in the intended direction.

[0160] In the present embodiment described above, the sixth spray device 10 sprays the object to be sprayed from the spray opening 25. The spray device 10 includes a resin housing 20 including the spray opening 25, and a weight 65 located inside the housing 20. The housing 20 includes a handle portion 30 that is held by a user, and a container holding portion 45 configured to hold a container 70 that contains the object to be sprayed. The weight 65 is located inside the handle portion 30.

[0161] The sixth spray device 10 according to this embodiment has the following advantages. The resin housing 20 allows for a lighter weight. Meanwhile, the placement of a weight on the handle portion 30 allows the spray device 10 to be held stably during use. Therefore, the spray device 10 is easy to handle. The object to be sprayed can be sprayed stably in the intended direction.

[0162] In the present embodiment described above, the seventh spraying device 10 sprays the object to be sprayed from the spray opening 25. The spraying device 10 includes a housing 20 including the spray opening 25 and a gas flow path forming unit 50 held by the housing 20. The housing 20 includes a container holding unit 45 configured to hold a container 70 that contains the object to be sprayed. The gas flow path forming unit 50 includes a tip nozzle member 51 that supplies gas toward the spray opening 25. The tip nozzle member 51 includes a gas nozzle portion 52 that sprays gas and a bottom wall portion 54 that extends from the gas nozzle portion 52 in a direction non-parallel to the direction in which the gas is sprayed from the gas nozzle portion 52. The gas nozzle portion 52 includes a gas flow path 53 that includes a tapered portion 53a that tapers toward the spray opening 25 in the direction in which the gas is sprayed. The bottom surface 54a of the bottom wall portion 54 is located at the same position as the tapered portion 53a in the jetting direction or at a position closer to the jetting opening 25 than the tapered portion 53a.

[0163] The seventh spray device 10 according to the present embodiment has the following advantages: The bottom surface 54a of the bottom wall portion 54 is located near the ejection opening 25 in the front-rear direction D1. Therefore, the bottom surface 54a can be easily cleaned.

[0164] In the present embodiment described above, the eighth spray device 10 sprays the object to be sprayed from the spray opening 25. The spray device 10 includes a housing 20 including the spray opening 25. The housing 20 includes a container holding portion 45 configured to hold a container 70 that contains the object to be sprayed. The container 70 includes a storage portion 71 that stores the object to be sprayed, and a cap 73 that closes the storage portion 71. The container holding portion 45 includes a container guard 46 that covers the container 70 in a radial direction perpendicular to a central axis CL70 of the container 70. The container guard 46 extends from the container 70 held by the container holding portion 45 in a direction opposite to the cap 73 along the central axis CL70.

[0165] According to the eighth injection device 10 of this embodiment, the following effects can be obtained: The rear end of the container 70 can be protected by the container guard 46. Damage to the container 70 can be suppressed.

[0166] In the present embodiment described above, the ninth spray device 10 sprays the object to be sprayed from the spray opening 25. The spray device 10 includes a housing 20 including the spray opening 25. The housing 20 includes a container holding portion 45 configured to hold a container 70 that contains the object to be sprayed. The container 70 includes a storage portion 71 that stores the object to be sprayed, and a cap 73 that closes the storage portion 71. The container holding portion 45 includes a container guard 46 that covers the container 70 in a radial direction perpendicular to a central axis CL70 of the container 70. The container guard 46 includes a recess 47 at a position facing the cap 73. The recess 47 increases the circumferential length of the portion of the container 70 that is exposed from the container guard 46, centered on the central axis CL70.

[0167] The ninth injection device 10 according to this embodiment provides the following advantageous effects. When handling the container 70, for example, when attaching or detaching the container 70 to or from the housing 20, the container 70 can be easily and stably gripped. When handling the container 70 by gripping the accommodating portion 71, the accommodating portion 71 and the cap 73 held in the housing 20 may separate, causing the object to be injected to spill out of the container 70. By handling the container 70 by gripping the cap 73, the occurrence of such a problem can be prevented.

[0168] In the present embodiment described above, the tenth spray device 10 sprays the object to be sprayed from the spray opening 25. The spray device 10 includes a housing 20 including the spray opening 25. The housing 20 includes a container holding portion 45 configured to hold a container 70 that contains the object to be sprayed. The housing 20 includes a housing main body 21 and a rotation restricting member 23 that is detachable from the housing main body 21. The container 70 includes a storage portion 71 that contains the object to be sprayed, a cap 73 that closes the storage portion 71, and a container nozzle portion 78 that is rotatably held by the cap 73. The container nozzle portion 78 is opened and closed by rotating the container nozzle portion 78 relative to the cap 73. The rotation restricting member 23 contacts the container nozzle portion 78 of the container 70 held by the container holding portion 45 to restrict rotation of the container nozzle portion 78.

[0169] The tenth spray device 10 according to this embodiment has the following advantageous effects. When attaching or detaching the container 70 to or from the container holder 45, or when rotating the cap 73 with the container nozzle portion 78 restricted in rotation by the rotation restricting member 23, the rotation restricting member 23 may be damaged. By making the rotation restricting member 23 detachable from the housing 20, the other parts of the spray device 10 can continue to be used.

[0170] In one example of the present embodiment, when the container 70 is held by the container holding portion 45 and the spraying device 10 is placed on the horizontal surface 5, 70% or more of the internal volume of the container 70 may be located below the lower end of the container opening 78a. According to this example, when the spraying device 10 is placed on the horizontal working surface 5, it is possible to more effectively prevent the object to be sprayed contained in the container 70 from leaking from the container nozzle portion 78.

[0171] In one example of the present embodiment, the housing 20 may include a handle portion 30 gripped by a user, a container holding portion 45, and an intermediate portion 35 located between the handle portion 30 and the container holding portion 45 and including the ejection opening 25. The intermediate portion 35 may include flange portions bulging on both sides in a width direction D3. The width direction D3 is perpendicular to both the front-rear direction D1 and the up-down direction D2. The front-rear direction D1 is parallel to the ejection direction of the object to be ejected. The up-down direction D2 is the direction in which the handle portion 30 and the container holding portion 45 face each other and is perpendicular to the front-rear direction D1. The three positions may include a first contact position CP1 on the flange portion 36, a second contact position CP2 on the handle portion 30, and a third contact position CP3 on the container holding portion 45. According to this example, when the spray device 10 is placed on a horizontal surface 5 and no external force other than gravity is applied to it, the spray device 10 contacts the horizontal surface 5 at three positions CP1, CP2, and CP3. The three positions CP1, CP2, and CP3 are distributed among the flange portion 36, the handle portion 30, and the container holding portion 45. By distributing the three contact positions CP1, CP2, and CP3, the attitude of the spray device 10 on the horizontal plane 5 is more effectively stabilized. Therefore, the object to be sprayed contained in the container 70 can be more effectively prevented from leaking from the container nozzle portion 78.

[0172] In one example of the present embodiment, when the container 70 is held in the container holding portion 45 and the spray device 10 is placed on the horizontal surface 5, the ejection opening 25 and the third contact position CP3 may be located on opposite sides of a reference axis AX1 that passes through the first contact position CP1 and the second contact position CP2. The third contact position CP3 may be located at the rear end portion of the container holding portion 45 that is farthest from the ejection opening 25 in the front-rear direction D1. According to this example, the third contact position CP3 is located at the rear end portion of the container holding portion 45 that is farthest from the reference axis AX1 in the front-rear direction D1. By distributing the three contact positions CP1, CP2, and CP3, the posture of the spray device 10 on the horizontal surface 5 is more effectively stabilized. Therefore, the object to be sprayed contained in the container 70 can be more effectively prevented from leaking from the container nozzle portion 78.

[0173] In one example of this embodiment, the container holding portion 45 may hold the container 70 such that the container 70 moves away from the flange portion 36 in the up-down direction D2 as it moves away from the ejection opening 25 in the front-rear direction D1. According to this example, the third contact position CP3 is significantly separated from the first contact position CP1 and the second contact position CP2 in the up-down direction D2. By dispersing the three contact positions CP1, CP2, and CP3, the attitude of the spraying device 10 on the horizontal plane 5 is more effectively stabilized. Therefore, the object to be sprayed contained in the container 70 can be more effectively prevented from leaking from the container nozzle portion 78.

[0174] In one example of the present embodiment, the spray device 10 may further include a gas flow path forming unit 50 held in the housing 20. The gas flow path forming unit 50 may include a tip nozzle member 51 that supplies gas toward the ejection opening 25, a connector 62 that connects to a tubular member 90 that supplies compressed gas, and a communication member 60 that forms a gas flow path from the connector 62 to the tip nozzle member 51. When the container 70 is held in the container holding unit 45 and the spray device 10 is placed on the horizontal surface 5, the ejection opening 25, the third contact position CP3, and the connector 62 may be located on opposite sides of a reference axis AX1 that passes through the first contact position CP1 and the second contact position CP2, as projected onto the horizontal surface 5. When the tubular member 90, which communicates with an external compressed gas source, is connected to the connector 62, the spray device 10 may be subjected to an external force from the tubular member 90. According to this example, in the projection onto the horizontal plane 5, the third contact position CP3 and the connector 62 are located on the opposite side from the ejection opening 25, with the reference axis AX1 passing through the first contact position CP1 and the second contact position CP2 as the center. Furthermore, in the projection onto the horizontal plane 5, the third contact position CP3 and the connector 62 are located on the same side with the reference axis AX1 as the reference. Therefore, the force applied to the ejection device 10 from the cylindrical member 90 is likely to act on the ejection device 10, which is in contact with the horizontal plane 5 at the first contact position CP1 and the second contact position CP2, so as to push the ejection device 10 toward the horizontal plane 5 at the third contact position CP3. This makes it possible to more effectively maintain the ejection device 10 in a position where it is in contact with the horizontal plane 5 at the three contact positions CP1, CP2, and CP3. Therefore, it is possible to more effectively prevent the object to be ejected contained in the container 70 from leaking from the container nozzle portion 78.

[0175] In one example of the present embodiment, the spray device 10 may further include a weight located within the housing 20. When the container 70 is held in the container holding portion 45 and the spray device 10 is placed on the horizontal surface 5, the ejection opening 25, the third contact position CP3, and the weight 65 may be located on opposite sides of a reference axis AX1 that passes through the first contact position CP1 and the second contact position CP2, as projected onto the horizontal surface 5. According to this example, the weight 65 acts on the spray device 10 so as to push the spray device 10, which is in contact with the horizontal surface 5 at the first contact position CP1 and the second contact position CP2, toward the horizontal surface 5 at the third contact position CP3. This more effectively prevents the spray device 10 from rotating around the reference axis AX1 in a direction away from the horizontal surface 5 at the third contact position CP3. This more effectively maintains the spray device 10 in an attitude in which it is in contact with the horizontal surface 5 at the three contact positions CP1, CP2, and CP3. Therefore, the object to be injected contained in the container 70 can be more effectively prevented from leaking out from the container nozzle portion 78.

[0176] In one example of the present embodiment, when the container 70 is held by the container holding portion 45 and the spray device 10 is placed on the horizontal surface 5, the ejection opening 25 may be located on the opposite side of the third contact position CP3 and the center of gravity of the spray device 10, with the reference axis AX1 passing through the first contact position CP1 and the second contact position CP2 as the center. According to this example, the weight of the spray device 10 acts to push the spray device 10, which is in contact with the horizontal surface 5 at the first contact position CP1 and the second contact position CP2, toward the horizontal surface 5 at the third contact position CP3. This more effectively prevents the spray device 10 from rotating around the reference axis AX1 in a direction away from the horizontal surface 5. This more effectively maintains the spray device 10 in a position in which it is in contact with the horizontal surface 5 at the three contact positions CP1, CP2, and CP3. This more effectively prevents the object to be sprayed contained in the container 70 from leaking from the container nozzle portion 78.

[0177] In one example of the present embodiment, the center of gravity of the spray device 10 may be located in the handle portion 30. According to this example, since the center of gravity is located within the handle portion 30, the spray device 10 is easy to handle. The object to be sprayed can be sprayed stably in the intended direction.

[0178] In one example of this embodiment, the flange portion 36 may include a maximum width portion 38 having a maximum dimension along the width direction D3. When the container 70 is held in the container holding portion 45 and the spray device 10 is placed on the horizontal surface 5, the maximum width portion 38 on the flange portion 36 facing the ejection opening 25 and the horizontal surface 5 may be located on the opposite side of the third contact position CP3 from the reference axis AX1, which passes through the first contact position CP1 and the second contact position CP2. According to this example, the maximum width portion 38 on the flange portion 36 can more effectively prevent the spray device 10 from rotating around the reference axis AX1 in a direction in which the third contact position CP3 moves away from the horizontal surface 5. The spray device 10 can be more effectively maintained in a position in which it is in contact with the horizontal surface 5 at the three contact positions CP1, CP2, and CP3. Therefore, the object to be sprayed contained in the container 70 can be more effectively prevented from leaking from the container nozzle portion 78.

[0179] In one example of the present embodiment, the central axis CL70 of the container 70 may pass through the ejection opening 25 while held by the container holder 45. When observed from the width direction D3, the ejection direction of the object from the ejection opening 25 may be along an extension of the flange portion 36. According to this example, the container holder 45 holds the container 70 so that the central axis CL70 of the container 70 passes through the ejection opening 25 of the housing 20. This allows the ejection device 10 to be compact in the front-to-rear direction D1. Furthermore, the ejection direction of the object from the ejection opening 25 is along an extension of the flange portion 36 when observed from the width direction D3. This allows the user to understand the ejection direction of the object from the flange portion 36, without misleading the user into thinking that the object is being ejected along the central axis CL70 of the container 70. This prevents the object from being ejected in an unintended direction, and allows the object to be ejected in the intended direction.

[0180] In one example of this embodiment, the spray device 10 may further include a weight 65 located within the ejection opening 25. The housing 20 may include a handle portion 30 gripped by a user, a container holding portion 45, and an intermediate portion 35 located between the handle portion 30 and the container holding portion 45 and including the ejection opening 25. The intermediate portion 35 may include flange portions 36 bulging on both sides in the width direction D3. The width direction D3 is perpendicular to both the front-rear direction D1 and the up-down direction D2. The front-rear direction D1 is parallel to the ejection direction of the object to be ejected. The up-down direction D2 is the direction in which the handle portion 30 and the container holding portion 45 face each other and is perpendicular to the front-rear direction D1. The weight 65 may be located on the handle portion 30 side of the flange portion 36 in the up-down direction D2. According to this example, the weight 65 is located lower than the flange portion 36 in the up-down direction D2. In the container-equipped spray device 10X in which the container 70 is held above the flange portion 36 in the vertical direction D2, the center of gravity can be lowered in the vertical direction D2. This makes the spray device 10 easier to handle. The object to be sprayed can be sprayed stably in the intended direction.

[0181] In one example of the present embodiment, the spray device 10 may further include a gas flow path forming unit 50 held in the housing 20 and supplying gas toward the ejection opening 25, and an opening / closing operation member 49 that opens and closes the gas flow path formed by the gas flow path forming unit 50. The opening / closing operation member 49 may be located on the front side of the handle unit 30 in the front-to-rear direction D1 and may open the gas flow path by moving it toward the rear side in the front-to-rear direction D1. According to this example, the object to be sprayed is sprayed by moving the opening / closing operation member 49 backward using the index finger, middle finger, or the like. A weight is located near the base of the thumb or near the palm of the hand holding the handle unit 30, making the opening / closing operation member 49 easy to operate. Therefore, the spray device 10 is easy to handle. The object to be sprayed can be stably sprayed in the intended direction.

[0182] In one example of this embodiment, the spray device 10 may further include a weight 65 located within the housing 20. The housing 20 may be made of resin. The housing 20 may include a handle portion 30 to be gripped by a user and a container holding portion 45. The weight 65 may be located within the handle portion 30. According to this example, the resin housing 20 can be used to reduce weight. On the other hand, by placing the weight 65 in the handle portion 30, the spray device 10 can be gripped stably during use. Therefore, the spray device 10 is easy to handle. The object to be sprayed can be stably sprayed in the intended direction.

[0183] In one example of the present embodiment, the spray device 10 may further include a gas flow path forming portion 50 held in the housing 20. The gas flow path forming portion 50 may include a tip nozzle member 51 that supplies gas toward the ejection opening 25. The tip nozzle member 51 may include a gas nozzle portion 52 that ejects gas and a bottom wall portion 54 that extends from the gas nozzle portion 52 in a direction non-parallel to the ejection direction of the gas from the gas nozzle portion 52. The gas nozzle portion 52 may include a gas flow path 53 that includes a tapered portion 53a that tapers toward the ejection opening 25 in the gas ejection direction. The bottom surface 54a of the bottom wall portion 54 may be located at the same position as the tapered portion 53a or at a position closer to the ejection opening 25 than the tapered portion 53a in the ejection direction. According to this example, the bottom surface 54a of the bottom wall portion 54 is located near the ejection opening 25 in the front-rear direction D1. Therefore, the bottom surface 54a can be easily cleaned.

[0184] In one example of this embodiment, the container 70 may include a storage portion 71 that stores the object to be sprayed, and a cap 73 that closes the storage portion 71. The container holding portion 45 may include a container guard 46 that covers the container 70 from a radial direction perpendicular to the central axis CL70 of the container 70. The container guard 46 may extend from the container 70 held by the container holding portion 45 in a direction opposite to the cap 73 along the central axis CL70. According to this example, the rear end of the container 70 can be protected by the container holding portion 45. Damage to the container 70 can be suppressed.

[0185] In one example of the present embodiment, the container 70 may include a storage portion 71 that stores the object to be injected and a cap 73 that closes the storage portion 71. The container holding portion 45 may include a container guard 46 that covers the container 70 from a radial direction perpendicular to the central axis CL70 of the container 70. The container guard 46 may include a recess 47 at a position facing the cap 73. The recess 47 may have a longer circumferential length about the central axis CL70 of the portion of the container 70 that is exposed from the container guard 46. According to this example, when handling the container 70, for example, when attaching or detaching the container 70 to or from the housing 20, the container 70 can be easily and stably held. When handling the container 70 by holding the storage portion 71, the storage portion 71 and the cap 73 held in the housing 20 may separate, causing the object to be injected to spill out of the container 70. Handling the container 70 by holding the cap 73 can prevent such problems from occurring.

[0186] In one example of this embodiment, the container held by the container holder may be covered by the container guard in at least a portion of the area where the recess is located in the direction along the central axis, the portion being less than 50% of the circumferential length centered on the central axis. According to this example, when handling the container, for example, when attaching or detaching the container to or from the housing, the container can be easily and stably handled. When handling the container by gripping the container holder, the container holder and the cap held in the housing may separate, causing the target substance to spill out of the container. By handling the container by gripping the cap, the occurrence of such a problem can be suppressed.

[0187] In one example of this embodiment, the housing 20 may further include a handle portion 30 that is gripped by a user. The container guard 46 may be positioned further outward in the width direction D3 than the container 70 held by the container holding portion 45. The width direction D3 is perpendicular to both the front-rear direction D1 and the up-down direction D2. The front-rear direction D1 is parallel to the spray direction of the object to be sprayed. The up-down direction D2 is the direction in which the handle portion 30 and the container holding portion 45 face each other and is perpendicular to the front-rear direction D1. In other words, the container 70 held by the container holding portion 45 is positioned inside the area where the container guard 46 is located in the width direction D3. Therefore, the container 70 can be protected by the container guard 46. Damage to the container 70 can be suppressed.

[0188] In one example of the present embodiment, the housing 20 may include a housing main body 21 and a rotation restricting member 23 that is detachable from the housing main body 21. The container 70 may include a storage section 71 that stores an object to be sprayed, a cap 73 that closes the storage section 71, and a container nozzle section 78 rotatably held by the cap 73. The container nozzle section 78 may be opened and closed by rotating the container nozzle section 78 relative to the cap 73. The rotation restricting member 23 may contact the container nozzle section 78 of the container 70 held in the container holding section 45 to restrict the rotation of the container nozzle section 78. According to this example, the rotation restricting member 23 may be damaged when the container 70 is attached to or detached from the container holding section 45, or when the cap 73 is rotated with the container nozzle section 78's rotation restricted by the rotation restricting member 23. By making the rotation restricting member 23 detachable from the housing 20, a damaged rotation restricting member 23 can be replaced with an undamaged rotation restricting member 23. This allows the parts of the injection device 10 other than the rotation restricting member 23 to continue to be used.

[0189] Although the present embodiment has been described with reference to specific examples, the above-described specific examples do not limit the present embodiment. The above-described embodiment can be implemented with various other specific examples, and various omissions, substitutions, changes, additions, etc. can be made without departing from the spirit of the present invention.

[0190] For example, although the example in which the object to be ejected is a liquid has been shown, the object to be ejected is not limited to this example, and may be a powder. [Explanation of symbols]

[0191] 5: horizontal surface, 10X: spray device with container, 10: spray device, 20: housing, 21: housing main body, 22A: first housing part, 22B: second housing part, 23: rotation restriction member, 23a: storage part, 25: ejection opening, 26: recess, 30: handle part, 31: area, 31a: lower end, 35: middle part, 36: flange part, 37: ridge line, 38: widest part, 45: container holding part, 46: container guard, 47: recess, 49: opening / closing operation member, 49a: opening / closing lever part, 49b: spring part, 50: gas flow path forming part, 51: tip nozzle member, 52: gas nozzle part, 52a: opening, 53: gas flow path, 53a: Tapered portion, 54: bottom wall portion, 54a: bottom surface, 55: side wall portion, 60: communicating member, 60a: distal end side tube, 60b: proximal end side tube, 61: on-off valve, 62: connector, 65: weight, 66: first weight, 67: second weight, 70: container, 71: storage portion, 73: cap, 74: cap body, 75: needle portion, 75a: supply port, 76: gasket, 78: container nozzle portion, 78a: container opening, 78b: nut portion, 90: cylindrical member 90, D1: front-rear direction, D2: up-down direction, D3: width direction, AX1: reference axis, AX2: axis, CP1: first contact position, CP2: second contact position, CP3: third contact position, CL70: central axis

Claims

1. An injection device that injects an object to be injected from an injection opening, a housing including the ejection opening; the housing includes a container holder configured to hold a container including a container opening for supplying the object to be sprayed therein; When the container is held in the container holding portion and the spray device is placed on a horizontal surface, the spray device contacts the horizontal surface at three positions, and the container opening opens upward in a direction parallel to the horizontal surface.

2. 2. The spray device according to claim 1, wherein when the container is held in the container holder and the spray device is placed on a horizontal surface, 70% or more of the internal volume of the container is located below the lower end of the container opening.

3. the housing includes a handle portion that is gripped by a user, the container holding portion, and an intermediate portion that is located between the handle portion and the container holding portion and includes the ejection opening; the intermediate portion includes flange portions bulging out on both sides in the width direction, The width direction is perpendicular to both the front-rear direction and the up-down direction, The front-rear direction is parallel to the ejection direction of the ejected object, the up-down direction is a direction in which the handle portion and the container holding portion face each other and is perpendicular to the front-rear direction; 2. The spray device of claim 1, wherein the three positions comprise a first contact position on the flange portion, a second contact position on the handle portion, and a third contact position on the container holder.

4. When projected onto the horizontal plane, the ejection opening and the third contact position are located on opposite sides of a reference axis that passes through the first contact position and the second contact position, The injection device according to claim 3 , wherein the third contact position is located at a rear end portion of the container holding portion that is away from the ejection opening in the front-rear direction.

5. The injection device according to claim 4 , wherein the container holder holds the container such that the container moves away from the flange portion in the up-down direction as it moves away from the ejection opening in the front-rear direction.

6. a gas flow path forming portion held by the housing, the gas flow path forming portion includes a tip nozzle member that supplies gas toward the ejection opening, a connector that is connected to a tubular member that supplies compressed gas, and a communication member that forms a flow path for the gas from the connector to the tip nozzle member, 4. The injection device according to claim 3, wherein, in the projection onto the horizontal plane, the ejection opening is located on an opposite side to the third contact position and the connector with respect to a reference axis line passing through the first contact position and the second contact position.

7. a weight located within the housing; 4. The injection device according to claim 3, wherein, in a projection onto the horizontal plane, the ejection opening, the third contact position, and the weight are located on opposite sides of a reference axis that passes through the first contact position and the second contact position.

8. 4. The injection device according to claim 3, wherein, in the projection onto the horizontal plane, the ejection opening is located on the opposite side of the third contact position and the center of gravity of the injection device with respect to a reference axis line passing through the first contact position and the second contact position.

9. The injector of claim 8 , wherein the center of gravity is located in the handle portion.

10. the flange portion includes a widest portion having a maximum dimension along the width direction, 4. The injection device according to claim 3, wherein, in a projection onto the horizontal plane, the widest portion on the flange portion facing the ejection opening and the horizontal plane and the third contact position are located on opposite sides of a reference axis passing through the first contact position and the second contact position.

11. a central axis of the container passing through the ejection opening when the container is held by the container holder; The injection device according to claim 3 , wherein, when observed from the width direction, the injection direction of the object from the injection opening is along an extension line of the flange portion.

12. An injection device that injects an object to be injected from an injection opening, a housing including the ejection opening; the housing includes a handle portion that is gripped by a user, a container holding portion configured to hold a container that contains the object to be sprayed, and an intermediate portion that is located between the handle portion and the container holding portion and includes the ejection opening, a central axis of the container passing through the ejection opening when the container is held in the housing; the intermediate portion includes flange portions bulging out on both sides in the width direction, The width direction is perpendicular to both the front-rear direction and the up-down direction, The front-rear direction is parallel to the ejection direction of the ejected object, the up-down direction is a direction in which the handle portion and the container holding portion face each other and is perpendicular to the front-rear direction; When observed from the width direction, the direction in which the object to be ejected from the ejection opening is along an extension line of the flange portion.

13. a weight located within the housing; the housing includes a handle portion that is gripped by a user, the container holding portion, and an intermediate portion that is located between the handle portion and the container holding portion and includes the ejection opening; the intermediate portion includes flange portions bulging out on both sides in the width direction, The width direction is perpendicular to both the front-rear direction and the up-down direction, The front-rear direction is parallel to the ejection direction of the ejected object, the up-down direction is a direction in which the handle portion and the container holding portion face each other and is perpendicular to the front-rear direction; The injection device according to claim 1 , wherein the weight is located on the handle portion side of the flange portion in the up-down direction.

14. An injection device according to any one of claims 1 to 13; a container held by the spray device.

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