JP6300627B2 - Syringe type ejection container - Google Patents

Description

  The present invention relates to a syringe-type ejection container that ejects a content liquid by pressing a plunger, and particularly relates to a container that ejects a content liquid in small portions.

  In a syringe-type ejection container that ejects the content liquid by pressing the plunger, depending on the application, it is required to eject the content liquid in small portions without ejecting all of the content liquid at once. As such, Patent Document 1 discloses an injection ejector in which a housing having a C-shaped cross section is attached to a plunger rod. In this ejector, the first ejection is performed with the housing attached to the plunger rod, and then the housing is removed and the second ejection is performed.

Japanese Examined Patent Publication No. 6-13054

  By the way, in what was shown by patent document 1, the housing must be removed in the middle of operation, and the place of the removed housing must be ensured, and there is room for improvement in terms of usability. It was.

  An object of the present invention is to solve such a conventional problem. The purpose of the present invention is to divide the content liquid into a predetermined amount and to eject the liquid in a predetermined amount. A new syringe-type ejection container is proposed.

The present invention is a syringe-type ejection container having a plunger that is inserted into a syringe and having an operation unit that pushes a piston positioned in front of the plunger by applying a pressing force to eject the content liquid. And
The operation part has a guide extending from the rear to the front, has a base part provided at the rear of the syringe, a guide projection supported to prevent the guide from rotating, and a saw blade part at the front end. A pressing member to which a pressing force is directly applied, and a convex portion projecting outward in the radial direction, the convex portion being inclined with respect to the front-rear direction and provided with a rear end portion against which the saw blade portion is pressed. A locking member that directly or indirectly presses the plunger, and an elastic member that is supported by the base and applies a biasing force toward the rear to the locking member,
The base includes a guide path that regulates the position of the lock member in association with the convex part, and the guide path includes a first pressing path that extends from the rear toward the front, and the first pressing path. And a detour path whose rear edge extends in the same direction as the rear end and extends from the front to the rear, and is connected to the detour path and extends from the rear to the front. Two pressing paths ,
Between the elastic member and the locking member is a syringe type ejection container Ru comprising a support member for rotatably supporting between said pushing member and said locking member.

  The convex portion has a front end portion extending in a direction orthogonal to the front-rear direction, and the first pressing path extends in parallel to the front end portion and contacts the convex portion. It is preferable to have a front edge portion that stops the pushing member.

  According to the present invention, while the convex portion pressed by the saw blade portion can eject the content liquid while moving along the first pressing path, the convex portion is a connecting portion between the first pressing path and the bypass path. If it approaches, the convex part will move to the direction which goes around the axis line of a syringe with respect to a saw blade part with the urging | biasing force of an elastic member. After that, once the pressure on the pressing member is released, the convex portion automatically moves to the end position of the detour path (start position of the second pressing path) with the biasing force of the elastic member. By pressing, ejection in the second pressing path can be performed. As described above, according to the present invention, it is possible to divide the content liquid into at least two times that the convex part moves along the first pressing path and the second pressing path. In addition, the operation for dividing the content liquid only needs to be once released from the pressing member, which improves usability.

  The convex portion is provided with a front end portion extending in a direction orthogonal to the front-rear direction, and the first pressing path extends in parallel with the front end portion. In the case of providing the front edge portion for stopping the progress, the content liquid for the next time is not ejected, so that the content liquid can be subdivided in an intended amount.

  Although it is possible to press the elastic member directly against the lock member, if a support member is provided between the lock member and the elastic member to support the lock member so as to be rotatable between the push member, the first press The convex portion can be automatically moved more stably when approaching the connecting portion between the route and the detour route.

It is sectional drawing in front view which shows one Embodiment of the syringe-type ejection container according to this invention. 1A is a side view, and FIG. 1B is a cross-sectional view in a side view of the guide member shown in FIG. It is a side view of the pushing member shown in FIG. It is a side view of the locking member shown in FIG. It is a side view of the support member shown in FIG. FIG. 6A schematically shows a situation in which a convex portion moves along a guide route. FIG. 5A is a diagram showing a state immediately before the first ejection, and FIG. 5B is a diagram showing a state where the convex portion is saw just before the end of the first ejection. It is a figure which shows the state which moved with respect to the blade part, (c) is a figure which shows the state which the front edge part of the convex part contact | abutted to the front edge part of the 1st press path | route, and the 1st ejection was complete | finished. (D) is a figure which shows the state which the convex part moved to the starting position of the 2nd press path | route, (e) is a figure which shows the state which the 2nd ejection was complete | finished.

  Hereinafter, an embodiment of the syringe-type ejection container of the present invention will be described with reference to the drawings. In addition, in this specification, a claim, and an abstract, the front is the side where the ejection part is located with respect to the operation part shown in FIG. 1, and the back is the opposite side.

  FIG. 1 shows an embodiment of a syringe-type ejection container according to the present invention. The syringe-type ejection container of the present embodiment includes a syringe 10, a plunger 20 that is inserted into the syringe 10, a piston 30 that is positioned in front of the plunger 20, and an ejection unit 40 that is provided in front of the syringe 10. And an operation unit A that applies a pressing force when ejecting the content liquid. Here, the operation portion A is directly applied with a pressing force of a finger or the like when the content liquid is ejected, and a base portion B (in the present embodiment, constituted by a finger hooking member 50, a base 60, and a guide member 70) provided behind the syringe. The pressing member 80, the locking member 90 positioned in front of the pressing member 80, the supporting member 100 positioned in front of the locking member 90, and a biasing force directed rearward to the locking member 90 via the supporting member 100. The elastic member 110 is provided.

  The syringe 10 includes a cylindrical body 11 having a hollow shape. A front cylinder portion 12 having a smaller diameter than the trunk portion 11 is provided in front of the trunk portion 11. Further, a flange portion 13 extending toward the radially outer side is provided behind the trunk portion 11.

  The plunger 20 includes a base portion 21 that is cylindrical and has a front end closed. A front end 22 formed in a screw shape is provided in front of the base body 21.

  The piston 30 is provided so as to be slidable and liquid-tightly contacted with the inner peripheral surface of the body portion 11. The rear end portion of the piston 30 is provided with a hole 31 adapted to the front end portion 22, and the piston 30 is connected to the plunger 20. In addition, the content liquid F is filled in the syringe 10 in front of the piston 30.

  The ejection part 40 includes a cylindrical holder 41 that is fitted and held in the front cylinder part 12. An inner surface of the holder 41 is provided with a threaded portion 42, and a pipe member 43 is detachably held therein. Inside the pipe member 43, there is provided a spin element 44 that communicates with the internal passage of the front cylindrical portion 12 and that allows the content liquid F to be sprayed in the form of a mist while swirling. In addition, you may comprise so that the pipe member 43 may be directly attached to the front cylinder part 12, without providing the holder 41. FIG. Moreover, the ejection form of the content liquid F is not limited to the mist form using a spin element, For example, the foam form using a mesh may be sufficient. Further, the content liquid F may be directly discharged from the front cylinder portion 12 without providing the ejection portion 40.

  The finger-hanging member 50 includes a cylindrical wall 51 that passes through the body 11, a flange wall 52 that extends radially outward from the rear end of the cylindrical wall 51, and an annular shape that extends rearward from the edge of the flange wall 52. The wall 53 is integrally connected to each other. The finger hooking member 50 is inserted from the front of the syringe 10, and the flange wall 52 is disposed in front of the flange portion 13.

  The base 60 includes a support wall 61 that sandwiches the flange portion 13 with the flange wall 52 and is fitted and held on the inner surface of the annular wall 53. A cylindrical outer peripheral wall 62 extending backward is integrally connected to the support wall 61. On the rear side of the outer peripheral wall 62, an engaging portion 63 provided as a through hole penetrating the outer peripheral wall 62 in the radial direction is provided. The engaging portion 63 may be a concave portion that is recessed from the radially inner side to the outer side.

  As shown in FIGS. 2A and 2B, the guide member 70 includes a cylindrical peripheral wall 71, and a ring wall 72 is integrally connected to the rear end of the peripheral wall 71. Further, a claw portion 73 that engages with the engaging portion 63 and holds the guide member 70 against the base 60 is provided on the outer surface of the peripheral wall 71. The peripheral wall 71 is provided with a guide 74 extending from the rear toward the front. The guide 74 of the present embodiment is a vertical recess in which the peripheral wall 71 is recessed from the radially inner side to the outer side, and a total of three guides 74 are provided at an angle of 90 ° around the central axis of the guide member 70. . The guide 74 can be variously modified as long as it corresponds to a guide projection 83 of the pushing member 80 described later. For example, the guide 74 may be constituted by a vertical through-hole penetrating the peripheral wall 71 in the radial direction.

  Further, the peripheral wall 71 is provided with a guide path 75 formed through the peripheral wall 71 in the radial direction. The guide path 75 is formed at an angle of 90 ° around the central axis of the guide member 70 with respect to the adjacent guide 74, whereby three guides 74 and one guide path 75 are 90 in the circumferential direction. It is arranged at an angle of °. The guide path 75 is connected to the first pressing path 75a extending from the rear to the front, the bypass path 75b connected to the first pressing path 75a, the bypass path 75b and extending from the rear to the front. And a second pressing path 75c. Further, the rear edge 75d of the detour path 75b extends from the front to the rear while being inclined with respect to the front-rear direction (in this embodiment, being inclined so as to rise to the left in a side view). . Further, the front edge portion 75e of the first pressing path 75a extends in a direction orthogonal to the front-rear direction. Further, a stop path 75f that is inclined in the same direction as the bypass path 75b is provided in front of the second pressing path 75c. The guide path 75 of the present embodiment is capable of ejecting the content liquid F in two portions, in which the first ejection is performed in the first pressing path 75a and the second ejection is performed in the second pressing path 75c. It is.

  As shown in FIG. 3, the push-in member 80 surrounds the disc-shaped top wall 81 serving as a portion to which a pressing force is applied by a finger or the like, and the edge of the top wall 81 and extends from the rear to the front. A peripheral wall 82 is provided. A guide protrusion 83 is provided on the outer surface of the peripheral wall 82 so as to protrude outward in the radial direction. In the present embodiment, a total of three guide protrusions 83 are provided at positions corresponding to the guides 74, respectively. As a result, the pushing member 80 can be moved in the front-rear direction with respect to the guide member 70, but is held so as to be unable to rotate around its axis. In addition, a saw blade portion 84 having a shape in which triangular portions having a triangular shape are repeatedly arranged around the axis of the pushing member 80 is provided at a portion corresponding to the guide path 75 at the front end of the peripheral wall 82.

  As shown in FIG. 4, the lock member 90 includes a cylindrical peripheral wall 92 that surrounds the edge of the disk-shaped top wall 91. A front portion of the peripheral wall 92 is a large-diameter portion 93 having an outer diameter larger than that of the other portion, and a step surface is formed between the large-diameter portion 93 and the other portion. The large diameter portion 93 is formed so that the front end of the peripheral wall 82 of the pressing member 80 contacts the rear end (step surface) of the large diameter portion 93 when the lock member 90 is attached to the pressing member 80. The peripheral wall 92 is provided with a convex portion 94 that protrudes radially outward (one in this embodiment). Specifically, the convex portion protrudes in the radial direction from the outer surface of the large-diameter portion 93 and is formed so that a cross section along the front-rear direction protruding rearward from the stepped surface is L-shaped. The convex portion 94 includes a rear end portion 95 that is inclined in the same direction as the rear edge portion 75d and against which the saw blade portion 84 is pressed. The convex portion 94 includes a front end portion 96 extending in parallel with the front edge portion 75e.

  As shown in FIG. 5, the support member 100 integrally connects a cylindrical peripheral wall 102 to the edge of the disk-shaped top wall 101, and includes a ring-shaped support wall 103 in front of the peripheral wall 102. The support wall 103 is provided with an annular wall 104 extending forward. Here, as shown in FIG. 1, the base portion 21 of the plunger 20 is slidably held inside the annular wall 104.

  The elastic member 110 expresses an elastic force in the extending direction, and is disposed between the support wall 61 of the base 60 and the support wall 103 of the support member 100 as shown in FIG. The illustrated elastic member 110 is in the form of a spirally wound coil, but various members can be used as long as they apply a biasing force toward the rear to the support member 100 and the lock member 90 connected thereto. Can be adopted. The support member 100 may be omitted so that the urging force of the elastic member 110 is directly applied to the lock member 90. However, as will be described later, the lock member 90 is 1 is rotated about the axis O shown in FIG. 1, the elastic member 110 becomes a resistance, and the lock member 90 may not be smoothly rotated. For this reason, it is preferable to apply the urging force of the elastic member 110 to the lock member 90 via the support member 100 as in the present embodiment.

  Next, a situation in which the convex portion 94 pressed by the saw blade portion 84 moves along the guide path 75 will be described with reference to FIG. FIG. 6A is a diagram showing a state immediately before the first ejection, and the apex of the rear end portion 95 is positioned at the middle portion of one peak portion of the saw blade portion 84.

  Then, a pressing force is applied to the pushing member 80 and the first ejection is started. At this time, the convex portion 94 is pressed by the saw blade portion 84 and proceeds forward in the first pressing path 75a. Then, as shown in FIG. 6 (b), when reaching the connecting portion between the first pressing path 75a and the detour path 75b, the convex portion 94 is pushed by the urging force of the elastic member 110 and is indicated by a broken line in the figure. From the state where the apex of the portion 95 is located at the middle portion of the peak portion of the saw blade portion 84, the state moves to the state where the apex of the rear end portion 95 is located at the bottom of the valley portion of the saw blade portion 84, as indicated by a solid line in the figure . That is, the lock member 90 having the convex portion 94 rotates around the axis O shown in FIG. 1 with respect to the pushing member 80 having the saw blade portion 84. At this time, a flipping sound is generated between the convex portion 94 and the saw blade portion 84, and a light impact is transmitted to the finger or the like pressing the pushing member 80, so that the user knows that the first ejection has been completed. be able to. Note that the length L of the first pressing path 75a shown in FIG. 2 is half of the total moving distance 2L of the piston 30 as shown in FIG. It is set so that half of the content liquid F filled in can be ejected. Note that the length L can be changed according to the desired ejection amount.

  In the present embodiment, the first pressing path 75a includes a front edge portion 75e. For this reason, when the front end portion 96 of the convex portion 94 comes into contact with the front edge portion 75e, the progress of the pushing member 80 can be stopped and the first ejection can be finished. In addition, although the convex part 94 shown in FIG.6 (c) has moved ahead from the position shown in FIG.6 (b), you may make it into a substantially the same position.

  After reaching the position where the playing sound is generated or the position where the front end portion 96 is in contact with the front edge portion 75e, the pressure on the push-in member 80 is once loosened so as to project as shown in FIG. The part 94 automatically moves to the end position of the detour path 75b (start position of the second pressing path 75c) with the urging force of the elastic member 110. Here, since the base portion 21 of the plunger 20 shown in FIG. 1 is slidably attached to the annular wall 104 of the support member 100, the pushing member is left with the plunger 20 and the piston 30 left in place. 80, the lock member 90 and the support member 100 move slightly backward. For this reason, the content liquid F etc. once ejected are not drawn into the syringe 10.

  Then, the second ejection is started by pressing the pushing member 80 again, and the convex portion 94 moves to the position indicated by the broken line in FIG. 6E (the piston 30 moves to the front end of the trunk portion 11 as shown in FIG. 1). By pressing the pushing member 80 until it moves to the position), the same amount of content liquid F as the first ejection can be ejected. Thereafter, when the finger or the like that has been pressed is released from the pressing member 80, the convex portion 94 automatically moves to the stop path 75f by the urging force of the elastic member 110 as shown by the solid line in FIG. The original second pressing path 75c is never returned to the starting position. Further, it is possible to prevent the container from being reused by pulling back the plunger.

  The syringe-type ejection container according to the present invention is not limited to this embodiment, and various modifications can be made within the scope according to the claims. For example, when the first pressing path 75a and the detour path 75b are repeatedly provided, the first pressing path 75a and the detour path 75b can be subdivided into three or more times.

  According to the present invention, the content liquid can be subdivided and ejected in a predetermined amount, and the operation at the time of subdividing the content liquid only needs to be once released from the pressing member, so that it is easy to use. A novel syringe-type ejection container can be provided.

DESCRIPTION OF SYMBOLS 10 Syringe 11 Body 12 Front cylinder part 13 Flange part 20 Plunger 21 Base part 22 Front end part 30 Piston 31 Hole 40 Ejection part 41 Holder 42 Screw part 43 Pipe member 44 Spin element 50 Finger hook member 51 Cylindrical wall 52 Flange wall 53 Annular wall 60 Base 61 Support wall 62 Outer peripheral wall 63 Engagement part 70 Guide member 71 Peripheral wall 72 Ring wall 73 Claw part 74 Guide 75 Guide path 75a First pressing path 75b Detour path 75c Second pressing path 75d Rear edge 75e Front edge Portion 75f Stop path 80 Pushing member 81 Top wall 82 Perimeter wall 83 Guide projection 84 Saw blade portion 90 Lock member 91 Top wall 92 Perimeter wall 93 Large diameter portion 94 Convex portion 95 Back end portion 96 Front end portion 100 Support member 101 Top wall 102 Perimeter wall 103 support wall 104 annular wall 110 Elastic member A Operation part B Base F Contents liquid O Syringe axis

Claims (2)

A syringe-type ejection container having a plunger inserted into a syringe, and having an operation unit that pushes a piston positioned in front of the plunger by applying a pressing force to eject the content liquid.
The operation part has a guide extending from the rear to the front, has a base part provided at the rear of the syringe, a guide projection supported to prevent the guide from rotating, and a saw blade part at the front end. A pressing member to which a pressing force is directly applied, and a convex portion projecting outward in the radial direction, the convex portion being inclined with respect to the front-rear direction and provided with a rear end portion against which the saw blade portion is pressed. A locking member that directly or indirectly presses the plunger, and an elastic member that is supported by the base and applies a biasing force toward the rear to the locking member,
The base includes a guide path that regulates the position of the lock member in association with the convex part, and the guide path includes a first pressing path that extends from the rear toward the front, and the first pressing path. And a detour path whose rear edge extends in the same direction as the rear end and extends from the front to the rear, and is connected to the detour path and extends from the rear to the front. Two pressing paths ,
The locking between the elastic member and the member, the syringe type ejection container Ru comprising a support member for rotatably supporting the lock member between said pushing member.   The convex portion has a front end portion extending in a direction orthogonal to the front-rear direction, and the first pressing path extends in parallel to the front end portion and contacts the convex portion. The syringe-type ejection container according to claim 1, further comprising a front edge portion that stops the progress of the pushing member.

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