JP6066834B2 - Trigger type ejector - Google Patents

Description

  The present invention relates to a trigger type ejector that ejects liquid or the like by operating a trigger, and more particularly, to a component configuration of the trigger type ejector.

  The trigger type ejector is usually an ejector body mounted on the mouth / neck portion of the container body, a trigger movably provided at the front portion of the ejector body, and provided in the ejector body, and the trigger moving operation. A pump that is driven by a discharge operation and is driven in a reverse direction by a return spring to perform a suction operation, a suction pipe that is suspended in the container body and sends contents such as liquid in the container body into the pump, and A nozzle that is rotatably provided at a front end portion of the ejector body, and selectively ejects the content pumped from the inside of the pump to the outside and shuts off the ejection according to the rotation position. Depending on the rotational position of some nozzles, the contents are ejected as they are, and in addition, they are ejected in the form of a mist or foam.

  By the way, as a conventional trigger type ejector, for example, the one disclosed in the patent document 1 by the applicant of the present application is known. In this trigger type ejector, a cylindrical tip member that rotatably supports a nozzle is provided as an ejector. A horizontal board that supports the upper end of the return spring located on both sides of the trigger is placed on the injection cylinder, and the front end of the horizontal board is fitted to the cylinder tip member. By fitting the rear end part to the restraining piece at the rear part of the ejector body, and at the same time as fixing the return spring to the ejector body, it is intended to prevent the pipe body member from being ejected by the discharge pressure from the injection cylinder of the ejector body. Yes.

Japanese Patent No. 3789904

  However, in the above-described conventional trigger type ejector, the tube tip member, which is a separate component from the ejector body, is tightly fitted to the ejector body in a liquid-tight manner to prevent escape, and the tube tip to the ejector body Since the parts are configured to be fitted via a horizontal board, which is a separate part from the ejector body, it is necessary to manage liquid tightness, fitting strength, etc. In order to ensure the combined strength, it is necessary to increase the wall thickness, and there is a disadvantage that the amount of resin in the ejector body and parts increases.

  Therefore, an object of the present invention is to eliminate the above-mentioned disadvantages in the trigger type ejector.

The trigger type ejector of the present invention that solves the above problems is
An ejector body mounted on the mouth and neck of the container body;
A trigger movably provided at the front of the ejector body;
A return spring that biases the trigger toward the return position;
A pump provided in the ejector main body, driven by a movement operation of the trigger to perform a discharge operation, and driven in a reverse direction together with the trigger by the return spring to perform a suction operation;
A nozzle that is provided at a front portion of the ejector body, and performs ejection to the outside of the content pumped from the pump;
In the trigger type ejector comprising
The tube tip member that supports the nozzle is formed integrally with the injection tube at the front of the ejector body,
A spring support member that supports an upper end portion of the return spring is fitted into the front portion of the ejector body from above, and is fixed to the ejector body by fitting an undercut portion to the front portion. It is characterized by.

  In the trigger type ejector according to the present invention, when the trigger that is movably provided at the front part of the ejector body mounted on the mouth and neck of the container body is moved during use, the trigger type ejector is provided in the ejector body. The pump is driven by the operation of moving the trigger to perform the discharge operation, and the contents previously sucked from the container body are applied to the nozzle provided on the tube tip member formed integrally with the injection tube at the front of the ejector body. Pumping and ejecting the pumped contents to the outside, then the pump is driven in the reverse direction together with the trigger by a return spring that biases the trigger toward the return position, and performs a suction operation; The contents such as liquid in the container are sent into the pump.

  Further, in the trigger type ejector of the present invention, the tube tip member formed integrally with the front injection cylinder of the ejector body supports the nozzle, and the spring support member that supports the upper end portion of the return spring includes The undercut portion is fitted to the front portion of the ejector body by being fitted and inserted into the front portion of the ejector body from above, and the front portion of the ejector body and the tube tip member Since there is no intervening, liquid tightness and fitting strength for fitting the tube tip member to the front part of the ejector body are not required.

  Therefore, according to the trigger type ejector of the present invention, it is not necessary to increase the wall thickness in order to ensure liquid tightness, fitting strength, etc. between the injection cylinder and the cylinder tip member at the front part of the ejector body. Therefore, it is possible to reduce the amount of resin in the ejector body, the tube tip member, etc., and to make the ejector lightweight and inexpensive. Moreover, since the injection cylinder and the cylinder tip member are integrally formed, the number of parts is also reduced.

Furthermore, in the trigger type ejector according to the present invention, the both sides of the front portion of the ejector body are provided with recesses that open sideways against each other, and the upper end of the fork of the trigger is mutually connected. A support shaft that protrudes in opposition is provided, and the spring support member presses the upper end of the fork of the trigger having the support shaft fitted into the recesses on both sides of the front portion of the ejector body from the outside . The trigger support shaft can be prevented from coming off by attaching the spring support member to the front portion of the ejector body.

In the trigger type ejector of the present invention, the spring support members are respectively inserted into slits provided along both side portions of the front portion of the ejector body, and the outer wall portions of the slits are inserted. It is preferable to have an insertion piece for fitting the undercut part at the tip at the lower end, since the fitting strength to the front part of the ejector body can be increased.

  Furthermore, in the trigger type ejector according to the present invention, it is preferable that the spring support member presses the upper end portion of the trigger from the outside with the insertion piece because the trigger support shaft can be prevented from coming off.

  And in the trigger type ejector of this invention, the recessed part of the both sides of the front part of the said ejector main body has opened also upwards, and the said spring support member fitted the said support shaft in the said recessed part It is preferable that the upper end portion of the fork of the trigger is pressed from the upper side because rattling or the like in the swinging of the trigger is suppressed and the operability is stabilized.

(A) is a longitudinal cross-sectional view which shows the whole structure of one Example of the trigger type ejector of this invention, (b) is a front view which shows the nozzle of the trigger type ejector of the Example. (A), (b) and (c) are the top view, side view, and front view which show the ejector main body of the trigger type ejector of the said Example. (A), (b) and (c) are the front views which expand and show the front part of the ejector main body of the trigger type ejector of the said Example, The side view which follows the AA line of Fig.2 (a) And it is sectional drawing which follows the BB line of FIG.3 (b). (A), (b), (c), (d) and (e) are a front view, a side view, a rear view, a plan view and a longitudinal sectional view showing a trigger of the trigger type ejector of the above embodiment. . (A), (b) and (c) are plan views showing the mounting state of the trigger on the front portion of the injector body of the trigger type ejector of the above embodiment, along line CC in FIG. 5 (a). FIG. 6 is a sectional view taken along a line D-D in FIG. 5B. (A), (b), (c), (d), and (e) are a front view, a cross-sectional view, a rear view, a plan view, and a plan view showing a return spring and a spring support member of the trigger type ejector of the above embodiment. It is a bottom view. (A), (b), (c) and (d) are a plan view and a longitudinal section showing a mounting state of a return spring and a spring support member to the front part of the injector body of the trigger type injector of the above embodiment. It is sectional drawing which follows the EE line | wire of a figure and FIG.7 (b), and the FF line | wire of FIG.7 (b) in the state which mounted | wore the trigger.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1A is a longitudinal sectional view showing the overall configuration of an embodiment of the trigger type ejector of the present invention, and FIG. 1B is a front view showing a nozzle of the trigger type ejector of the embodiment. In the figure, reference numeral 1 denotes a resin-made injector body 2 which is attached to a mouth and neck portion of a container body (not shown) by screwing (may be fitted by undercut or the like) via a cap member 1a. Resin triggers 3 are supported by the front portion 1b of the injector body 1 so that the upper end 2a is swingable in the front-rear direction, and the triggers 2 are positioned on both sides of the front portion 1b of the injector body 1 respectively. A return spring 4 made of resin that urges toward the return position shown in FIG. 4A is fitted to the ejector body 1, and the piston 4a is driven rightward in FIG. Is discharged and triggered by the return spring 3 A resin pump 5 that is driven in a reverse direction and sucks and is suspended in the container body, and a resin suction pipe that feeds contents such as liquid in the container body into the pump 4, and 6 is an ejector. A resin-made nozzle that is rotatably provided at the front portion 1b of the main body 1 and selectively ejects the contents pumped from the pump 4 to the outside and blocks the ejection by the rotation; 7 Is a resin-made cover that is fitted into the ejector body 1 from behind and is fitted to the ejector body 1 at the inner upper and lower fitting portions 7a to cover the ejector body 1. In addition, the nozzle 6 may be one that selects a plurality of ejection patterns (whether or not they are blocked), such as a mist or foam, for example. Instead, it may perform only the ejection.

  2 (a) is a plan view showing the ejector body 1 of the trigger type ejector of the above embodiment, FIG. 2 (b) is a side view showing the ejector body 1, and FIG. 2 (c) It is a front view which shows the ejector main body 1, and the injector main body 1 has reverse L shape in the side surface shape, and is back and forth in the front part 1b located in the left in FIG. 2 (a), (b) A cylindrical main passage having an injection cylinder 1c extending horizontally in the direction and extending in the vertical direction as shown in FIG. 2 (b) on the right side in FIGS. 2 (a) and 2 (b). 1d. A cylindrical pump chamber 1e for accommodating the pump 4 is formed on the front side of the main passage 1d, and the main passage 1d is vertically moved with an opening communicating with the pump 4 accommodated in the pump chamber 1e interposed therebetween. Are provided with reverse support valves 1f and 1g each allowing only upward flow, the lower end portion of the main passage 1d is connected to the upper end portion of the suction pipe 5, and the upper end portion of the main passage 1d is the passage in the injection cylinder 1c. A cylinder tip member 8 having a central shaft portion 8a and a cylindrical portion 8b surrounding the central shaft portion 8a is formed integrally with the injection cylinder 1c at the distal end portion of the injection cylinder 1c. The tip portion communicates with the space between the central shaft portion 8a of the tube tip member 8 and the cylindrical portion 8b.

  The tube tip member 8 has two circumferential protrusions 8c that extend from both sides to the top of the outer peripheral surface of the cylindrical portion 8b and are aligned with each other in the axial direction, while the nozzle 6 has an ejection hole 6a at the center thereof. An inner cylinder portion 6b that communicates with the outer cylinder portion 6c, and an outer cylinder portion 6c that surrounds the inner cylinder portion 6b. Between the two circumferential protrusions 8c of the cylindrical portion 8b of the cylinder tip member 8, the outer cylinder portion 6c of the nozzle 6 is provided. By fitting a plurality of protrusions 6d aligned in the circumferential direction on the inner peripheral surface of the rear part, the nozzle 6 is supported so as to be rotatable around the axis of the cylindrical part 8b. A plurality of axial grooves are formed on the outer peripheral surface of the central shaft portion 8a of the tube tip member 8, and also on the inner peripheral surface of the inner tube portion 6b of the nozzle 6 that is liquid-tightly fitted to the central shaft portion 8a. A plurality of axial grooves are formed, and the nozzle 6 is rotated to a rotation position where the axial grooves of the central shaft portion 8a of the tube tip member 8 and the axial grooves of the inner cylinder portion 6b of the nozzle 6 face each other. The space between the central shaft portion 8a of the tube tip member 8 and the cylindrical portion 8b communicates with the ejection hole 6a of the nozzle 6 through these axial grooves, and the tip of the injection tube 1c is opened to the outside. In addition, by rotating the nozzle 6 to a rotation position where the axial groove of the central shaft portion 8a of the tube tip member 8 and the axial groove of the inner tube portion 6b of the nozzle 6 do not face each other and are disengaged in the circumferential direction, The space between the central shaft portion 8a and the cylindrical portion 8b of the tube tip member 8 is closed with respect to the ejection hole 6a of the nozzle 6, and the injection tube Tip of c is cut off from the outside world.

  3A is an enlarged front view showing the front portion 1b of the ejector body 1 of the trigger type ejector of the above embodiment, and FIG. 3B shows the front portion 1b of the ejector body 1. FIG. 2A is a side view taken along the line AA in FIG. 2A, and FIG. 3C is a sectional view taken along the line BB in FIG. 3B showing the front portion 1b of the ejector body 1. As shown in FIG. 2, the front portion 1b of the ejector body 1 has a gap from the back surface of the tube tip member 8 to the middle portion in the longitudinal direction along both sides of the flat upper surface of the injection tube 1c. Two ribs 1h extending with a gap between them are formed, and at the middle part of the front part 1b of the ejector body 1, as shown in the cross section of FIG. The rib-shaped portions projecting from both sides of the rib 1h are opposed to each other so as to open to the side of the front portion 1b and open upward as well. Part 1i is formed. The intermediate part of the front part 1b of the ejector body 1 is also formed with frame-like wall parts 1j surrounding the concave parts 1i on both sides of the intermediate part, and these wall parts 1j and the concave parts 1i inside thereof A slit 1k extending in the vertical direction is formed along the side of the front portion 1b. In addition, the injection cylinder 1c has a flat upper surface over the entire length in this embodiment, and the section from the rear surface of the cylinder tip member 8 to the position of the slit 1k is a substantially square cylindrical cross section as shown in FIG. As shown in FIG. 7C described later, the upper end of the slit 1k from the rear end to the main passage 1d has a substantially semi-cylindrical cross-sectional shape. As shown in FIG. 2A, the wall 1j extends from the rear end of the portion surrounding the recess 1i in a U shape to the main passage 1d along both sides of the flat upper surface of the injection cylinder 1c. .

  4A is a front view showing the trigger 2 of the trigger type ejector of the above embodiment, FIG. 4B is a side view showing the trigger 2, and FIG. 4C shows the trigger 2. 4 (d) is a plan view showing the trigger 2, FIG. 4 (e) is a longitudinal sectional view showing the trigger 2, and FIG. 5 (a) shows the above embodiment. FIG. 5B is a plan view showing the mounting state of the trigger 2 on the front portion of the injector body of the trigger type ejector, and FIG. 5B shows the mounting state of the trigger 2 along line CC in FIG. FIG. 5C is a sectional view taken along the line D-D in FIG. 5B, showing the mounting state of the trigger 2, and as shown in FIG. And has a bifurcated upper end 2a. On the upper end portion 2a of the trigger 2, there are provided support shafts 2b that project inwardly (in a direction approaching each other), and these support shafts 2b are arranged in the slit 1k as shown in FIG. Thus, the trigger 2 is pivotably fitted in the recess 1i located at the intermediate portion of the front portion 1b of the ejector body 1, and the trigger 2 is supported on the front portion 1b of the ejector body 1 so as to be swingable in the front-rear direction.

  As shown in FIG. 4 (e), the trigger 2 is also formed with a through hole 2c extending in the front-rear direction by a rectangular tube portion positioned in the middle portion in the vertical direction. As shown in FIG. 1, the tip of the piston 4a of the pump 4 is inserted (freely inserted). Further, on the inner surface of the through hole 2c, protrusions 2d that protrude inward (in a direction approaching each other) are formed so as to face each other, and these protrusions 2d are formed in the through hole 2c as shown in FIG. The trigger 2 is coupled to the piston 4a by being rotatably fitted in circular recesses 4b formed on both sides of the tip of the piston 4a inserted into the piston 4a, whereby the trigger 2 and the piston 4a are interlocked. . Further, the trigger 2 has pockets 2e that open rearward and upward on both sides thereof, and in these pockets 2e, two return springs located on both sides of the front portion 1b of the ejector body 1 are provided. 3 of hooking portions 3b to be described later are respectively inserted and hooked.

  FIG. 6A is a front view showing the return spring 3 and the spring support member 9 of the trigger type ejector of the embodiment, and FIG. 6B is a cross-sectional view showing the return spring 3 and the spring support member 9. 6C is a rear view showing the return spring 3 and the spring support member 9, FIG. 6D is a plan view showing the return spring 3 and the spring support member 9, and FIG. FIG. 7A is a bottom view showing the return spring 3 and the spring support member 9, and FIG. 7A shows the return spring 3 and the spring support member 9 to the front portion of the injector body of the trigger type ejector of the above embodiment. FIG. 7B is a longitudinal sectional view showing the mounted state of the return spring 3 and the spring support member 9, and FIG. FIG. 7B is a cross-sectional view taken along the line E-E in FIG. 7B, showing the mounting state of the ring 3 and the spring support member 9, and FIG. 7D shows the mounting state of the return spring 3 and the spring support member 9. FIG. 8 is a cross-sectional view taken along line FF in FIG. 7B in a state where the trigger 2 is mounted.

  The two return springs 3 extend downward from the left and right side portions of the spring support member 9, respectively, and each return spring 3 has a double arcuate portion 3a in which lower ends are integrally coupled. The engaging portion 3b protrudes downward from the lower end of the arcuate portion 3a. The spring support member 9 has a substantially flat plate shape, and two lower ribs 9a and two intermediate ribs 9b extending in the front-rear direction (left-right direction in FIGS. 6B and 6D) on the lower surface thereof. And two inner ribs 9c extending in the front-rear direction between the two intermediate ribs 9b, and the front side of the lower surface of the two outer ribs 9a (FIG. 6B, ( In d), the upper end of the return spring 3 is integrally coupled to the left side, and the insertion piece 9d is disposed on the rear side of the lower surface of the two outer ribs 9a (right side in FIGS. 6B and 6D). Is formed. Each insertion piece 9d is made thinner than the width dimension of the outer rib 9a and is disposed flush with the outer surface of the outer rib 9a, whereby a step portion is formed inside the insertion piece 9d in the outer rib 9a. Has been. Moreover, the undercut part 9e which protrudes outward is formed in the lower end part of each insertion piece 9d. The return spring 3 and the spring support member 9 may be formed integrally or separately. In the case of separate molding, the insertion piece 9 d may be provided integrally with the return spring 3.

  The spring support member 9 is placed on the front portion 1b of the ejector body 1 from above, and the two return springs 3 extending downward from both sides of the spring support member 9 are disposed on both sides of the front portion 1b of the ejector body 1. 7, and two insertion pieces 9 d extending downward from both sides of the spring support member 9 are inserted into the slits 1 k on both sides of the front portion 1 b of the ejector body 1, respectively. As shown in a) to (c), an undercut portion 9e at the tip is fitted to the lower ends of the wall portions 1j on both outer sides of the slits 1k, and further, two intermediate ribs on the lower surface of the spring support member 9 9b and the two inner ribs 9c located inside thereof are fitted into the two ribs 1h on the injection cylinder 1c of the front portion 1b of the ejector body 1 from the outside and the inside, respectively, and the spring support member 9 Position As a result, the spring support member 9 and the two return springs 3 supported at the upper ends of the spring support member 9 and located on both sides of the front portion 1b of the ejector body 1 are connected to the front portion of the ejector body 1. Mounted on 1b. At that time, the bifurcated upper end 2a of the trigger 2 is first inserted into the slits 1k on both sides of the front portion 1b of the ejector body 1 from below, and the trigger as shown in FIG. The support shafts 2b opposed to the upper end 2a of 2 are fitted in the recesses 1i on both sides of the front part 1b of the ejector body 1, and then the two insertion pieces 9d are inserted into the slits 1k on both sides. Inserting the two spring support members 9 as shown in FIG. 7 (d) by inserting them and fitting the undercut portions 9e at the ends to the lower ends of the wall portions 1j on both outer sides of the slits 1k. The piece 9 presses the upper end 2a of the trigger 2 from the outside to prevent it from coming off from the recess 1i. At the same time, the step of the outer rib 9a of the spring support member 9 presses the upper end 2a of the trigger 2 from the upper side. Concave The anti-removal from 1i.

  In the trigger type ejector of this embodiment, when in use, when the swinging operation is performed by pulling the trigger 2 provided movably on the front portion 1b of the ejector body 1 attached to the mouth and neck of the container body, The pump 4 provided in the ejector body 1 is driven by the swing operation of the trigger 2 to perform a discharge operation, and the contents previously sucked from the container body are ejected under the action of the check valves 1f and 1g. Contents pumped to the nozzle 6 provided in the tube tip member 8 formed integrally with the injection cylinder 1c of the front portion 1b of the main body 1 and rotated from the nozzle 6 to the ejection position, and pumped from the pump 4 The pump 4 is driven in the reverse direction together with the trigger 2 by the return spring 3 that urges the trigger 2 toward the return position, and is sucked into the container body. The suction pipe 5 is operated by the check valves 1f and 1g. In, and sends the contents of the liquid or the like of the container body into the pump 4. When not in use, the nozzle 4 is rotated to the blocking position to block the contents from being ejected to the outside world and prevent the contents from dripping.

  Further, in the trigger type ejector of this embodiment, a tube tip member 8 formed integrally with the injection tube 1c of the front portion 1b of the ejector body 1 supports the nozzle 6 so as to be rotatable, and a return spring. 3 is inserted into the front part 1b of the ejector body 1 from above, and the undercut part 9e is fitted to the front part 1b of the ejector body 1, thereby ejecting the ejector body. 1 and is not interposed between the front portion 1b of the ejector body 1 and the tube tip member 8, so that the liquid tightness for fitting the tube tip member 8 to the front portion of the ejector body 1 is secured. And fitting strength is not required.

  Therefore, according to the trigger type ejector of this embodiment, the wall thickness is increased in order to ensure the liquid tightness and fitting strength between the injection cylinder 1c of the front portion 1b of the ejector body 1 and the cylinder tip member 8. Since it is not necessary to increase the thickness, the amount of resin in the ejector body 1 and the tube tip member 8 can be reduced to make the ejector lightweight and inexpensive.

  Further, according to the trigger type ejector of this embodiment, the both sides of the front portion 1b of the ejector main body 1 are provided with the recesses 1i that open to the side against each other, and the upper end of the bifurcated portion of the trigger 2 2a is provided with a support shaft 2b projecting opposite to each other, and the spring support member 9 is a bifurcated portion of the trigger 2 in which the support shaft 2b is fitted in the recesses 1i on both sides of the front portion 1b of the ejector body 1. Since the top end 2a of the trigger 2 is pressed from the outside, the support shaft 2b of the trigger 2 can be prevented from coming off by attaching the spring support member 9 to the front portion 1b of the ejector body 1.

  Moreover, according to the trigger type ejector of this embodiment, the spring support members 9 are respectively inserted into the slits 1k provided along both sides of the front portion 1b of the ejector body 1, and both of the slits 1k are inserted. Since it has the insertion piece 9d which fits the undercut part 9e of a front-end | tip at the lower end of the outer wall part 1j, the fitting intensity | strength to the front part 1b of the ejector main body 1 can be raised.

  Furthermore, according to the trigger type ejector of this embodiment, the spring support members 9 are respectively inserted into the slits 1k provided along both sides of the front portion 1b of the ejector body 1, and both of the slits 1k are inserted. Since the upper end 2a of the trigger 2 is pressed from the outside by the insertion piece 9d for fitting the undercut portion 9e at the front end to the lower end of the outer wall portion 1j, it is possible to firmly prevent the support shaft 2b of the trigger 2 from coming off. It can be carried out.

  And according to the trigger type ejector of this embodiment, the recesses 1i on both sides of the front portion 1b of the ejector body 1 are also open upward, and the spring support member 9 has the support shaft 2b in the recess 1i. Since the upper end 2a of the bifurcated trigger 2 is pressed from the upper side by the step portion of the outer rib 9a, the support of the trigger 2 to the recesses 1i on both sides of the front portion 1b of the ejector body 1 is supported. The shaft 2b can be easily fitted.

  As described above, the trigger type ejector of the present invention is not limited to the configuration of the embodiment described above. For example, the upper end portion of the trigger is ejected independently without being pressed by the spring support member. The support shaft may be fitted into the concave portions on both sides of the front portion of the main body, and the spring support member may be fitted with an inward undercut portion without a slit to the front portion of the ejector main body.

  The upper end of the trigger also extends in the front-rear direction, and the support shaft is fitted into the recesses on both sides of the front of the ejector body, and the spring support member presses the upper end of the trigger from the outside without a slit. In addition, an undercut portion facing inward below the upper end portion of the trigger may be fitted to the front portion of the ejector body.

  The nozzle is not only able to select whether the contents are ejected to the outside world or to block the ejection depending on the rotation position, but the contents can be directly ejected and ejected in the form of a mist or foam. And can be selected.

  Thus, according to the trigger type ejector of the present invention, it is not necessary to increase the wall thickness in order to ensure liquid-tightness, fitting strength, etc. between the injection cylinder and the cylinder tip member at the front part of the ejector body. The amount of resin in the ejector body and parts can be reduced to make the sprayer lighter and cheaper.

1 ejector body 1a cap member 1b front 1c injection cylinder 1d main passage 1e pump chamber 1f, 1g check valve 1h rib 1i recess 1j wall 1k slit 2 trigger 2a upper end 2b support shaft 2c through hole 2d protrusion 2e pocket 3 Return spring 3a Arc-shaped part 3b Engagement part 4 Pump 4a Piston 5 Suction pipe 6 Nozzle 6a Ejection hole 6b Inner cylinder part 6c Outer cylinder part 6d Projection 7 Cover 7a Fitting part 8 Tube tip member 8a Center shaft part 8b Cylindrical part 8c Projection 9 Spring support member 9a Outer rib 9b Intermediate rib 9c Inner rib 9d Insertion piece 9e Undercut part

Claims (4)

An ejector body mounted on the mouth and neck of the container body;
A trigger movably provided at the front of the ejector body;
A return spring that biases the trigger toward the return position;
A pump provided in the ejector main body, driven by a movement operation of the trigger to perform a discharge operation, and driven in a reverse direction together with the trigger by the return spring to perform a suction operation;
A nozzle that is provided at the front end of the ejector body, and that ejects the contents pumped from the pump to the outside,
In the trigger type ejector comprising
The tube tip member that supports the nozzle is formed integrally with the injection tube at the front of the ejector body,
A spring support member that supports the upper end portion of the return spring is fixed to the ejector body by being fitted and inserted into the front portion of the ejector body from above and by fitting an undercut portion to the front portion .
On both sides of the front part of the ejector body, there are provided recesses that open sideways against each other,
The upper end of the fork of the trigger is provided with a support shaft that projects opposite to each other,
The trigger-type ejector characterized in that the spring support member presses an upper end portion of the fork of the trigger having the support shaft fitted into the recesses on both sides of the front portion of the ejector body . . The spring support member is inserted into a slit provided along both sides of the front portion of the ejector body, and the undercut portion at the tip is fitted to the lower ends of both outer wall portions of the slit. The trigger type ejector according to claim 1 , wherein the trigger type ejector has a piece. The trigger type ejector according to claim 2 , wherein the spring support member is configured to press the upper end portion of the trigger from the outside with the insertion piece. The recesses on both sides of the front part of the ejector body are also open upward,
The spring support member, characterized in that the bifurcated upper end portion of the fitting a support shaft engaged the said trigger in the recess is intended for pressing from the upper side, any one of claims 1 to 3 Trigger type ejector.

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