JPH07504146A - plastic spring assembly - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] plastic spring assembly Background of the invention 1. Field of invention The present invention relates to a trigger-type release device mounted on the front tube of a storage container.

Such devices are known as trigger sprayers and are reusable. However, they are generally disposed of as disposable.

A trigger-type sprayer consists of a main body, a movable trigger mounted on the main body, and a trigger. A piston that is removably coupled to the and a cylinder within the body defining a pump chamber.

The cylinder extends to the fixed back wall of the body and connects the back wall and the interior of the movable piston. The space between the side ends defines a variable volume pump chamber. Cylinder has a fluid inlet valve and a fluid outlet pulp associated with the rear wall. ing.

To enable disposal and recycling of the sprayer, the trigger type sprayer of the present invention The play device is made of non-metallic plastic or synthetic resin parts.

This is a synthetic resin/plastic return spring body with trigger and sprayer. This is achieved by installing it between the main body. This spring body is the trigger and spray - Forms part of the pump mechanism between the main body of the device. This is also the rear part of the cylinder. Wall and associated plastic inlet flap valves and outlet flaps This can also be achieved by providing pulp.

2. Explanation of conventional technology Metal spring body inside the pump chamber of the pump mechanism of the trigger sprayer It is well known in the field of trigger sprayer technology that Ru. the spring body acts against a piston coupled to a trigger; It serves to return the trigger to its normal position when it is released.

Providing plastic spring bodies for trigger sprayers has also been done in the past. It is proposed that Below are some examples of trigger sprayers that have been proposed in the past. The invention is disclosed in the following patent.

United States Patent Number Patent Holder No. 4,915,263 Korba No. 4,898,307 Tiramani No. 4,624,413 Corset No. 4,593,607 Bennett No. 4.273,290 Fin No. 4,241,853 Boles et al. No. 4,191. , 313 Blake et al. Colba U.S. Patent No. 4,91 No. 5,263 has a plastic frame with a trigger, an upper leg, and a lower a curved member or bar disposed between the upper leg and the lower leg; A trigger sprayer is disclosed that includes a barrel and a cap. This spray The device generally includes a pump mechanism, a nozzle assembly, and a transfer arm body. .

The pump mechanism of this sprayer provides a return force against the frame and trigger. Except for the Rudame's metal coil spring, it is made of plastic. bird The frame, nozzle, and transport arm of the gar sprayer are made of plastic materials. It is molded. L. The curved member as a member of the Riga complete sprayer is It is located between the three-way and lower legs of the frame and is made of plastic. and returns the trigger to its normal position.

A trigger handle, an upper leg, a lower leg, a bendable member, and a cap. The frame is integrally molded from plastic. This curved part is 9. Move the trigger handle downward in an inward direction. l-liquor handle opens After this, the plastic material of the frame, especially the curved parts, is pressed and its rebound Return the frame containing the trigger to its normal position with NoJ. The return force of the curved member is The minimum requirement is therefore that Corva is made of plastic and bendable as required. It is proposed to replace the member with a metal member.

The main return force of this) Riga complete sprayer is the metal spring of the pump mechanism. The main characteristic of the curved member is the trigger handle. The goal is to allow for arch-shaped movement.

Tiramani's U.S. Pat. No. 4,898,307 states that the A short leaf spring that extends inwardly from the rear wall of the trigger. When the body is disclosed and engages the stop mechanism, and the trigger is squeezed, this lead The spring body is curved as shown in FIG. Tiramani is the Since the spring body is integral with the trigger, it is located adjacent to the rear wall of the trigger There is no teaching of elongated spring bodies with flat surfaces.

U.S. Patent No. 4,624,413 for a corset includes metal springs. A trigger sprayer is taught that includes a spring body, the metal spring body being It is not elongated and does not have a flat surface to engage the rear wall of the trigger. substitute One end of the outer spring body of the corset extends from the rear wall of the trigger. The trigger engages a portion of the shoulder and does not slide along the rear wall of the trigger.

The corset does not describe the material of the spring body, but the spring shown in Figure 1 In the cross-sectional view of both ends of the plug body, the cross-sectional view of the metal is shown, and the cross-sectional view of the non-metallic body is shown. is not shown.

Bennett, U.S. Pat. No. 4,593,607, discloses that metal or is made of plastic (preferably rDELRIN (registered trademark name)). A C-shaped spring member manufactured by Chick Co., Ltd. is disclosed. This spring member is Each end of a loop or coil spring member engages the trigger and Provides a repulsive force against the body of the sprayer when the gar is squeezed. vertically Although a movable piston is shown, its material is not described.

Tyra's U.S. Pat. No. 4,273,290 describes A chamber with a plastic spring body and a spin element is disclosed. and a poppet valve. This spin element, poppet valve, and It is integrally molded with the plastic spring body. Double spring body It is designed as a curved leaf spring and is pushed into the chamber. Therefore, the spring body is always in a pressed state and spins against the nozzle. One end of the element is pressed against the poppet valve and the other end is pressed against the annular shoulder. is forcing it on.

U.S. Pat. No. 4,241,853 to Ball et al. Integrally molded trigger return spring, including a one-piece molded shroud body A trigger sprayer is disclosed having a trigger body. This spring body is 1 placed in contact alignment with the spaced legs of the gar It includes a pair of vertical-type cartridge spring arms. These spring arm bodies Appears to be manufactured from non-metallic materials.

Blake et al., U.S. Pat. No. 4,191,313, discloses a pair of leafs. The pulling element is disclosed and the plastic shroud of the trigger sprayer is It is molded integrally with the arm body, and is attached to the rear of the pair of arm bodies of the trigger of the sprayer. It hangs from the shroud body when the platform is in an operable and stopped state, and the trigger is placed forward. It's pressed into position.

Blake et al., U.S. Pat. No. 4,191,313, further includes: A part of the piston and trigger unit has been disclosed, and the back side of the trigger has been disclosed. It includes a living hinge.

Additionally, U.S. Patent No. 4,624,413 for corsets includes piste The piston rod has a central hole that flares outward, and the central hole is connected to the piston rod. Undercut for a nap-style engagement fit and piston rod The head part has a shape that snaps into the undercut part of the center hole. A trigger type sprayer having a trigger type sprayer is disclosed. The piston rod has a flat leg. The main body of the trigger sprayer and the hinge can be It is integrally connected to the trigger which is connected in the same way. web or hinge It curves when the trigger is squeezed. flat leg or web type The hinge part of the member provides a coupling between the screw and the rod and the back side of the trigger. However, it does not provide a releasable, snap-fit coupling structure.

Other previously proposed trigger-type switches with a combination of trigger and piston Examples of I/- devices are disclosed in the following patents:

United States Patent Number Patent Holder No. 4,606,480 Gazla No. 3,061,202 Tyler and Gokoku Patent Publication No. 3314-020-A.

Gazla U.S. Patent No. 4,606,480 describes a vertical pump system. )・A complete set of riggers is disclosed, and the trigger has a semi-circular shape. Extending laterally (horizontally) pressed into a concave mold section with a large arch A cylindrical shaft is provided. When the trigger is squeezed, it is arranged in a fork shape two arms, each having a curved end surface, engage a cylindrical piston. to push the cylindrical piston upward.

Tyler, U.S. Pat. No. 3,061,202, describes a trigger-type sprayer. - The pin is pressed against the spring body received in the cylinder in the A square notch in the outer end of the stone is disclosed. Cross type inside trigger The rounded end of the web is received within the notch and is inserted into both sides of the notch when the trigger is squeezed. Move between sides.

In the strong country patent publication No. 3314-020-A, it is installed in opposition to the bottle, but , the end of the piston uncoupled to the bottle is disclosed. On the other hand, this The bin snaps into spaced legs that extend from the back of the trigger. It seems to fit the formula. This German patent publication states that the bottle is part of the trigger. It is stated that it is a department. The piston is pushed toward the trigger by a spring body. basted and openable for coupling to the piston rod of the piston No specific coupling structure is provided.

Trigger-type sprayers with flat valves or that appear to have metal parts Some non-piston trigger sprayers are disclosed in the following patents: Ru.

United States Patent Number Patent Holder No. 4,819,835 Tasaki No. 4,618,077 Corset No. 4,235,353 Capra et al. No. 4,225,061 Blake et al. No. 4,201,317 Aleph No. 4,155,487 Break No. 3,973,700 U.S. Patent No. 4,81 to Schmidt et al. Tasaki No. 9,835 includes an inlet valve, an outlet valve, and an interval valve. Trigger type with pump mechanism including a collection chamber and a cylindrical collection chamber A sprayer is disclosed. Piston unit and spring jointly with trigger The collecting chamber is used to change the volume of the collection chamber. Aisle is a collection channel The bar is connected to the interpulp chamber, and the pressure between these chambers is Establish balance. The passage between both chambers is relatively small compared to the size of the chambers. the pressure balance between both chambers is very small and therefore the pressure balance between the two chambers is Occurs after the process is completed.

During the intake stroke, a vacuum is created in the collection chamber and the piston By moving the stone, it communicates with the interpulp chamber through the passage. , increasing the volume of the collection chamber. This vacuum condition is caused by the inlet ball valve Open the inlet ball valve by lifting the ball on the valve and drain the fluid from the container. Aspirate and send to the interpulp chamber and then through the passage to the collection chamber - send to. The piston moves during the fluid ejection stroke to fill the volume of the collection chamber. increase the pressure between the collection chamber and the interpulp chamber. Ru. This pressure lifts the considerably heavy discharge valve body of the fluid outlet valve. to open the fluid outlet valve and vent fluid to atmosphere.

U.S. Pat. No. 4,618,077 for a corset includes a cylindrical member and an inner The trigger sprayer port includes a pump chamber surrounded by a conical top. A pump mechanism is disclosed. The conical l/tube fits tightly into the conical end wall. , which utilizes a normally closed check valve. The check valve has a conical top. The inlet ball in the conical end wall is Close the site. A storage chamber is disposed between the conical end wall and the cylindrical member.

The ring body extending around the conical end wall and the outer annular flange body of the cylindrical member is , outlet boat from the accumulation chamber to the discharge passage of the trigger sprayer. Seal. The vacuum in the pump chamber opens the check valve and injects fluid. into the pump chamber via the boat. The pressure inside the pump chamber is A ring that communicates with the accumulation chamber and creates its pressure and extends around the conical end wall Move the outer annular flange body of the cylindrical member axially away from the body to direct the fluid out. into the discharge passageway via the jet boat.

U.S. Pat. No. 4,235,353 to Cavler et al. Disclosed is a trigger-type sprayer having a pump mechanism including a bar and an accumulation chamber. has been done. This pump mechanism directs fluid from the container through an inlet ball valve. The fluid is then drawn into the piston chamber through the inlet valve. pumps fluid into the storage chamber by forcing it into the storage chamber. Send to the ceremony. If the pressure in the piston chamber is higher than the pressure in the accumulation chamber When the inlet flap valve is forced open, the fluid flows into the accumulation chamber. sent inward. The incoming fluid is directed against the movable wall and the mounted spring body. Increase the pressure in the accumulation chamber. The outlet opening of the accumulation chamber is Closed by outlet flap valve.

To discharge fluid into the atmosphere, the user depresses the discharge nozzle on the stem.

The stem forces the outlet flap valve of the accumulation chamber open, allowing the accumulation The piston, pressurized by the pressure in the chamber and the spring body, Pushing the body past the outlet flap valve and ultimately expelling it into the atmosphere Ru.

As soon as the user releases his/her hand, the outlet flap valve is forced closed again. It will be done.

U.S. Pat. No. 4,225,061 to Blake et al. A flexible valve element that is clamped between body components This includes: The valve element has holes other than the opening from which the protrusion extends. I haven't. A portion of the valve element is located above the dip tube and is typically The opening communicating with the dip tube is closed. Another part of the valve element on the opening in the body behind the chamber and the outlet valve. will be received between. All those parts of the release device are made of thermoplastic materials and molded resins. Manufactured.

Aleph's U.S. Pat. No. 4,201,317 describes a manual dispensing pump. The device is disclosed and includes a squeezable hero unit that is squeezed by a trigger.

An integrated tongue at its upper end adjacent to the outlet opening from the pump chamber. A thin shield extending from the outlet normally closes the outlet opening. deer When the tongue unit is squeezed and squeezes the fluid in the pump chamber, the outre Fluid pressure within the outlet opening forces the fluid past the thin shield body, forcing the outlet water Push it out onto the road.

A check valve is installed at the lower end of the pump chamber. Lube is inserted into the opening that communicates with the dip tube and into the body of the check valve. A bladder or stopper part that is hingedly connected via a hinge. It has

Blake, U.S. Pat. No. 4,155,487, discloses a trigger-type release point. a flexible ball having a flange at its upper end; It has a variable volume chamber defined by the body, which acts as a gasket. The chamber inlet check valve and outlet check valve The vertical flap that forms the flap makes it possible to carry the bag. flange and inlet Keitaru-shaped flap forming check valve and outlet check valve is a separate component in a trigger-type ejector pump that includes a piston and a cylinder. It may be.

U.S. Pat. No. 3,973,700 to Schmitz et al. A bellows piston assembly within a player is disclosed. The integrated tab has a tongue The inlet flap extends from the top and bottom sides of the unit to the inside of the tongue unit. Contains. When the inlet flap is raised, the bellows chamber When the let dip tube and the trigger are squeezed and the tongue is squeezed Open outlet flap valve to allow fluid to exit the tongue chamber. Move it to the J-let hole.

U.S. Pat. No. 4,241,852 to Boles et al. trigger having an elastic bladder and a charging chamber surrounding a piston; teaches sprayers. Bladders are relatively thin and flexible. It has a cylindrical pulp wall protruding forward on its front wall surface, and has an annular pulp wall. The flexible valve ring body, which is shaped like a radially inward direction, is a brush and is formed substantially coplanar with the front end wall surface of the holder. The cylindrical valve wall is is received in the rear facing wall of the aging chamber. Charging Chan The vacuum inside the bar causes the flexible valve ring body to move around the charging chamber circle. Vacuum against the extension of the cylindrical wall and close it, leaving the distal end of the cylindrical pulp wall behind. from its position in the wall facing towards the vessel, creating an opening towards the container; Fluid is drawn into the charging chamber. inside the charging chamber By creating pressure, this situation becomes repetitive and fluid is forced into the accumulation chamber. will be moved.

Summary of the invention The present invention provides a pump mechanism for a trigger-operated fluid ejection device mounted on a container. provided. This pump mechanism consists of a cylinder inside the body of the ejector and a cylinder a piston received within the body, movably mounted to the body and having a forward side and a rearward side; Trigger coupled to piston and piston coupled to trigger In order to push the trigger out of the cylinder, move the trigger away from the main body, and and a trigger having an elongated, facing flat surface and opposite ends. , non-metallic material containing a separate, non-coiled, elongated, generally flat spring mechanism The back side of the trigger has a rear wall surface and a spring The spring mechanism is located at one end of the spring mechanism located adjacent to the rear wall of the trigger. The end potion has one flat surface and is placed behind the trigger and resists the body. and the other end of the spring mechanism is engaged with the other end of the spring mechanism. be.

Brief description of the drawing FIG. 1 is a perspective view of a trigger sprayer constructed in accordance with the teachings of the present invention. .

FIG. 2 is an exploded perspective view of the trigger type sprayer shown in FIG. A locking ring body is shown that must be removed from the cylindrical base of the main body. .

Figure 3 is a vertical cross-sectional view of the trigger sprayer in its normal position; The spring body between the trigger and the sprayer body is coupled to the trigger. The piston rod is shown pressed to the outermost position.

FIG. 4 is a vertical cross-sectional view of a trigger sprayer similar to that shown in FIG. However, a fully throttled trigger condition is shown.

Figure 5 shows a non-metallic spring used in the trigger set sprayer shown in Figure 1. FIG. 3 is a perspective view of the plug assembly.

6 is a side view of the spring assembly shown in FIG. 5. FIG.

7 is a top view of the spring assembly shown in FIG. 5. FIG.

FIG. 8 is a top view of another embodiment of a spring assembly constructed in accordance with the teachings of the present invention. It is a front view.

9 is a side view of the spring assembly shown in FIG. 8. FIG.

10 is a bottom view of the spring assembly shown in FIG. 8. FIG.

Figure 11 is a vertical cross-sectional view of the connected trigger and piston in their normal position; be.

Figure 12 is a vertical view showing the trigger and piston shown in Figure 11 in a fully constricted state. FIG.

FIG. 13 is a side view of the piston shown in FIG. 4.

FIG. 14 is a plan view of the piston shown in FIG. 13 taken along line 14-14.

FIG. 15 is a vertical cross-sectional view of the piston shown in FIG. 14 along line 15-15. .

FIG. 16 is a vertical cross-sectional view of only the trigger.

FIG. 17 is a side view of the trigger shown in FIG. 16 taken along line 11-11.

Figure 18 shows the front end of the sprayer body of the trigger sprayer shown in Figure 2; , is a front side view of the nose bushing body extending from the front end, but at the end of the body. The mounted pull-away piece body has been removed.

19 is a rear view of the nozzle cap of the nozzle assembly shown in FIG. 2. FIG.

FIG. 20 shows the nozzle cap and nose shown in the nozzle assembly shown in FIG. This is an exploded view of a long vertical section of the bushing body, with some parts removed. Ru.

Figure 21 shows a nozzle cap coupled together as shown in Figure 1. and a longitudinal (generally vertical) cross-sectional view of the nose bushing body, with a portion removed. The condition is illustrated.

Figure 22 shows the nozzle assembly shown in Figure 1 with the pull-away piece body removed. 22 is a vertical cross-sectional view taken along line 22-22 of FIG.

FIG. 23 is a vertical cross-sectional view of a nozzle assembly similar to that shown in FIG. However, the two leg bodies extending from the main body are connected to the two engaging parts on the inner wall of the nozzle cap. The side wall of the sprayer body is squeezed to remove it from the blocking position of the stopper. Illustrated.

FIG. 24 shows the sprayer of the trigger sprayer shown in FIG. 2 similar to that of FIG. 2 is a front side view of the relay device body and the nose bushing body extending from the front end of the body. The figure shows the pull-away piece mounted on the front end of the main body. Ru.

FIG. 25 shows a puller mounted on the forward end of the body and constructed in accordance with the teachings of the present invention. It is a perspective view of a way piece body.

FIG. 26 is a side view of the pull-away piece body shown in FIG. 25.

27 is a vertical cross-sectional rear view of the pull-away piece body taken along line 27-27 in FIG. 26. It is a diagram.

Figure 28 shows the speed locking system of the present invention located on the engaging bottleneck body. The bottle cap of the I-Riga complete sprayer of the present invention, including the bottle cap assembly. FIG. 3 is an exploded side view of the top/bottleneck assembly.

FIG. 29 is a horizontal cross-section through the photo-luneck body and taken along line 29-29 in FIG. It is a diagram.

FIG. 30 is a perspective view of the locking ring body.

Figure 31 shows a partially removed bottle cap/bottle neck assembly. It is a partially exploded perspective view.

Figure 32 shows the bottle cap/bottle neck assembly for a trigger sprayer. FIG.

DESCRIPTION OF THE PREFERRED EMBODIMENT > The present invention will be explained in more detail using accompanying drawings. In Figure 1, the bottle 12 is filled with 1 is a perspective view of a pulled synthetic/plastic trigger sprayer 10; FIG. .

In FIG. 2, the components of the trigger type sprayer 10 are shown in more detail in an exploded perspective view. are doing.

Trigger sprayer 10 includes a body 14 and a nosepiece at a discharge end 18 of body 14. shing body 16, nozzle tambour blue abeam body 20, and top This part includes a potion 22 and a hand grip formation 24. The grip formation 24 is located behind the top portion 22 of the main body 14. The cylindrical base portion 26 of the main body 14 extends downward toward the cylindrical base portion 26 of the main body 14.

The bird -32 having the front side 31 is attached to the opposite side walls 36 of the trigger 32. It is molded into the top end and has two parts inside the body 14 of the trigger sprayer 10. By having two bottles 34 that are inserted into corresponding holes 38, the main body 14 can be rotated. will be installed on.

As shown in FIG. 2, the plastic spring assembly 40 is attached to the body 14. and the trigger 32, and always pushes the trigger 32 back to its normal position. ing. A piston 42 having an outer piston rod 44 is coupled to the trigger 32. The outer piston rod 44 has a trigger 32 and an inner cylindrical end. 46 and the inner cylindrical end 46 is connected to the cylindrical opening 48 in the body 14. a pump chamber defined within the cylindrical opening 48; Adjust the volume inside.

trigger 32, spring assembly 40, piston 42, and cylindrical opening 48 forms the main element of the pump mechanism 49.

A valve intake stem 50 is received at the bottom of the cylindrical base portion 26. There is a dip that is removably fixed and suspended to be inserted into the bottle 12. It has a tube body 52.

A child-safe sprayer/bottle connection is provided and the sprayer/bottle The connection is made through a lock receiving opening 54 formed in the cylindrical side wall of the cylindrical base 26. and a locking stopper on the bottle neck portion 30, the locking ring body 28 It includes a locking tab body 53 which is locked in place by a locking tab body 53.

When the molded sprayer body is removed from the mold, the body 14 and locking Six link bodies, point bodies, and fillets required to mold the ring body 28 together. It is connected to the cylindrical base portion 26 of the main body 14 by a mat or web body 57. The locking ring body 28 can be made into a cylindrical shape by destroying the fillet body 57. is removed from the base portion 26 and moved upwardly on the cylindrical base portion 26. trigger During the assembly process of the components of the -type sprayer 1o, the locking ring body 28 is assembled into a cylindrical base. is moved downward on the base portion 26.

A nozzle assembly 58 is provided and has a forwardly extending cylindrical extension 62. It includes a rotating nozzle cap 60. The nozzle cap 60 is a circle of the main body 14. The nozzle is mounted on the nose bushing body 16 extending from the cylindrical portion 64. It includes an annular band body 66 for holding the loop cap 60.

The three different positions of the nozzle cap 60 are the stop position, the spray position, and the spray position. The tree position is provided.

When the nozzle assembly 58 is mounted on the main body 14, the pull-away piece body 20 The mounting block 67 is inserted through the opening 68 in the top portion portion 22. received in a formal manner. At the same time, the fork arm body 69 of the piece body 20 a notch 70 in the application section 22 and/or a notch in the top wall of the cap 60; Through the section 71, one of the two flexible locking leg bodies 72 and the cylindrical The nozzle cap 60 is fixed at its stop position by extending between the shaped portion 64 and the nozzle cap 60. and further includes the nozzle assembly 58 of the trigger sprayer 10. To reliably provide tamper proof and locking for preventing children's accidents.

Nozzle assembly 58 is located at the discharge end of trigger sprayer 10, as previously described. It will be installed on the 18th. The top portion 22 of the main body 14 is a hand grip form. It extends rearward toward the rear end 73 of the section 24 and further slopes forward. , extending downward from the rear end 73 toward the cylindrical base 26 .

Six contact fillet bodies or web bodies 57 are located at the lower end of the cylindrical base portion 26. The locking ring body 28 was originally integrated with the locking ring body 28. Ru. During the molding process, the contact fillet body or web body 57 is destroyed and the locking The ring body 28 is moved upwardly relative to the cylindrical base portion 26. In addition, the lock When the king ring body 28 is moved downward on the cylindrical base portion 26, the locking The annular groove 74 in the ring body 28 is snap-fitted with the annular lip body 75 on the base portion 26. engage with. The upper position of the locking ring body 28 is the “before bottle application” position. , the locking ring body 28 has an inner wall of the locking ring body 28 and a cylindrical base portion. 26 by friction stops with rib segments 76 provided on the outer cylindrical wall soil. is held in position. A partial ring is formed above the outer cylindrical wall of the cylindrical base portion 26. The shaped rib segment 76 positions the locking ring body 28. Yes, somewhat limiting its upward movement.

As shown in FIG. A small-diameter seal ring body 316 is molded at 314 . Seal ring body 31 6 is designed to provide a seal against the inner diameter of the bottle neck portion 30. . The seal ring body 316 has an inclined end 318 on its lower side, and The torque neck portion 30 is inserted into the base portion 26 and around the seal ring body 316. It is.

An opening 320 is provided on the inside of the seal ring body 316, and the opening 32 0 has a shape corresponding to the shape of the intake stem 50, which generally has an elliptical cross section. ing. The intake stem 50 has a ridge body 322 on the intake stem 50. opening 32 until it snaps into engagement with a mounting groove on the inner surface of the wall of opening 320. It is pressed within 0 and fits. In this way an airtight seal is provided . The dip tube body 52 is removably fixed to the center of the intake stem 50. There is. The length of the dip tube body 52 is determined by the size of the bottle 12. It is something. However, the dip tube body 52 extends to near the bottom of the bottle 12. It is desirable that the length is such that it does not touch the bottom.

A cylindrical opening 48 is provided within the body 14 of the trigger sprayer 10.

The cylindrical end 46 of the piston is fitted hermetically within the cylindrical opening 48. The fixed back wall 326 of the cylindrical opening 48 and the rearward surface of the cylindrical end 46 of the piston A pump chamber 324 having a variable volume is created between a wall 328 and a wall 328 . Po A fixed wall 326 of the pump chamber 324 is connected to an inlet flap located at the lower part. It has a drop valve 330 and an opening 332 located at the upper part. intakes An orifice 334 passing through the wall of the system 50 is connected to the inlet flap valve 330. They are positioned to engage or mate and form an inlet passageway. stomach The intake passage includes a hollow dip tube body 52, an intake stem 50, and an oil valve. Refice 334 is provided.

The opening 332 is an outlet flap on the top side of the intake stem 50. Positioned to engage or mate with valve 336. inlet flap Valve 330 and outlet flap valve 336 are connected to pump chamber 324. Controls fluid flow in and out.

Trigger 32 includes two laterally extending bins 34 located at the top of trigger 32. by inserting the trigger sprayer into two corresponding holes 38 in the body 14. It is rotatably mounted on the main body 14 of 10.

As shown in FIG. 4, the plastic spring assembly 40 has a main body. Recess 41 in body 14 located below the inner end of 14 cylindrical portions 64 2 has a flat tapered end 410 that is press fit into the 2.

The other end 414 of the plastic spring assembly 40 is attached to the back wall 415. is pressed and located within the space 416 within the back side of the trigger 32 .

The plastic spring assembly 40 is curved and triggered by its repulsive force. -32 is always pushed back to its normal position.

Figure 4 shows a trigger-type switch with the L-rigger 32 pressed by the user. A player 10 is shown. The pressure within the pump chamber 324 causes the outlet valve to close. Wrap valve 336 is opened and fluid leaves pump chamber 324. at the same time , the plastic spring assembly 40 is curved to further increase the repulsion force. but may not be extended beyond its hook limit (l(001(11m1t)). instead, the user requires maximum force to keep the trigger 32 squeezed.

When the user stops pressing the trigger 32, the plastic spring assembly The burr 40, together with the piston 42, pushes the trigger 32 back to its normal position. Piss A vacuum is created within the pump chamber 324 as the ton 42 returns. this The vacuum state opens the inlet flap valve 330 and sucks fluid from the bottle 12. do.

When fluid is drawn from bottle 12, bottle 12 and trigger sprayer 10 Since the connection is airtight, a vacuum is also created within the bottle 12. bottle 1 In order to avoid vacuum conditions within 2, a degassing system is provided. Deaeration system is circular It includes a vent hole 344 in the top wall 314 of the cylindrical base portion 26. top wall 3 14 is a cylindrical opening 48 in the body 14 of the trigger sprayer 10. defining a wall between the lower side of the cylindrical groove 346 in the cylindrical base portion 26; There is. When the trigger 32 is fully squeezed, the vent hole 344 is opened and the bottle 1 2 A fluid connection between the interior and the outside air is established, and air cannot enter into the bottle 12. I can do it. When the trigger 32 is not squeezed, e.g. in its normal position, The vent hole 344 is covered by the cylindrical end 46 of the piston 42 and the vent hole 344 is covered by the cylindrical end 46 of the piston 42. 4 is closed and prevents the flow of fluid from the bottle 12.

Pump chamber 324 has a "dead volume" or "dead volume" of pump chamber 324. The minimum volume is between 1720 and 174 of the total volume of the pump chamber 324. It is designed to have a small capacity. Trigger 32 is pressed to the maximum After a small dead volume, a very small amount of fluid or air enters the pump chamber. It only remains within the bar 324. With this structure, the inside of the pump chamber 324 is The volume of compressible air space is minimized and the trigger sprayer 10 is Higher pressure on the flap valve 330 during filling of the rigger sprayer 10 Accumulate power. This minimum "dead volume" is the further element of the trigger sprayer 10. Enables faster filling, even higher vacuum and higher during intake and discharge strokes Provides squeezing force.

Another effect of the small "dead volume" is that the pump chamber 324 is very free of fluid. Fills faster, thus reducing the initial amount of time required to fill the trigger sprayer 10. The goal is to reduce the number of strokes.

The outer end 510 of the piston rod 44 has a transversely disposed cylinder 512. have. The cylinder 512 has a piston rod 44 between the leg bodies 513. It is arranged transversely to the long axis, and has a V-shaped cross section extending in the axial direction at its center. a hook portion 514 extending between sides 36 of trigger 32; A pivoting edge 516 is received at the top of the V-shaped outer end of the material 517. hook part The material 517 is part of the bearing formation 518; mation 518 is provided on the back side of the trigger 32 between the sides 36 and 519 through which the outer end 510 is received. There is. Cylinder 512 is within bearing formation 518 of trigger 32 The side of the V-shaped slot 514 acts as a locking body, and the connecting member limits the freedom of rotation.

The top of the V of the ■-shaped slot 514, that is, the arc due to the angle, is the hook member Substantially more than the top of the V at the outer end of the V cross section of 517 or the arc due to its angle significantly, as the trigger moves from its normal position to its fully closed position. A V-shaped fulcrum end portion is rotated on a V-shaped rotating seat.

■ In combination with the shaped slot 514, the bearing formation 518 is restricted. Movable trigger 32-piston 42 connection with sufficient rotational freedom is provided. With this construction, the piston 42 can be moved by simple and efficient means. It is rotatably connected to the trigger 32 and is movable within the pump chamber 324. Becomes Noh.

Bearing formation 518 is located on the inside size of each side 36 of trigger 32. hook member 51 on one side of trigger 32 and above opening 519 7 and between the 1 side 36 and the slot 521 at the bottom of the opening 519. The bearing surface 520 includes two round bearing surfaces 520.

FIG. 5, FIG. 6, and FIG. 7 will be explained. The spring assembly 40 includes a webbing body 6 Two leaf type sprues connected together at each end by 14 or 616 610 and 612. As shown in Figure 6, two springs The spring bodies 610 and 612 are somewhat arcuate, with an upper arcuate spring body 610 and a lower arcuate spring body 610. A square spring body 612 is formed. These long spring bodies 610 and 612 are integrally molded with each other, and then a split portion 618 between them is formed. is formed by a splitting process. Alternatively, the spring assembly 4o is one member. It can be a molded body and includes two spring bodies connected to each other at each end. That's fine. Additionally, as shown, each spring body 610 and 612 is designated by the reference numeral 6. 20 and 621 to corresponding webbing bodies 614 and 616. It is sloping towards. Similarly, the lower elongated leaf spring 612 is 622 and 623 are inclined toward the webbing bodies 614 and 616. are doing.

Furthermore, as clearly shown in FIG. 7, the ends of each spring body 610 and 612 The potion is tapered towards the webbing bodies 614 and 616, and each spray Ring bodies 610 and 612 are wide and wide at the central portion indicated by reference numeral 625. It has become.

The lower elongated leaf spring 612 has a notch 626 formed at each end thereof. and 627, defining shoulder portions 628 and 629.

Spring with ends of spring bodies 610 and 612 formed as described above Assembly 40 defines mirror-image shaped ends 410 and 414, each having a Shaped to fit within quadrant 412, shoulder portions 628 and 6 29 is adjacent to the lower outer end of the recess 412, as shown in FIGS. 3 and 4. It is adapted to engage with a portion of the shoulder.

The leaf spring bodies 610 and 612 are made of polypropylene and polyamide (nylon). 30% by weight of glass fiber is mixed into the mixture of Made of fiber reinforced plastic material.

Another embodiment of a spring assembly 640 manufactured in accordance with the teachings of the present invention includes: It is shown in FIGS. 8, 9 and 10. Spring assembly 640 is at the opposite end portions 642 and 644, of which only the end portion 642 is within the four portions 412. It is ready to be received. Spring assembly 640 is attached to the upper elongated brake. a blade or leaf type spring body 646 and a lower blade or leaf type spring body 646; A spring body 468 is included.

Ends 64 of leaf spring bodies 646 and 648 of spring assembly 640 2 and 644 refer to the spring assembly 40 illustrated in FIGS. Similarly, it is sloped and tapered. End 642 received in recess 412 The webbing connection portion 650 is provided between the leaf spring bodies 646 and 648. It is provided. However, at the other end the leaf spring bodies 646 and 648 are They are connected by a cylindrical loop body 652. The loop body 652 is connected to the trigger 3 2 is a blade-leaf type spring adjacent end 644 of spring assembly 640. It is subjected to pressure when pressed against the outer surface of ring body 646.

The lower leaf-type spring body is clearly shown in FIGS. 9 and 10. 648 has an IM notch 654 on its outer surface adjacent end 642. There is only one. Also, there is a gap inside the notch part, and the spring body 64 Extending from the outer surface of 8 is a small post body 656 and into recess 412. movement of the spring assembly inward and the spring assembly 64 in use. The downward movement of 0 is restricted.

As shown in FIGS. 3 and 4, spring assembly 40 or 640 is Bearing formation 518 and back side 41 of front wall 31 of trigger 32 5, and the end portion 410 or 642 is received by the fourth portion 412. The outer surface of the upper spring body 610 or 646 is located within the space 416. It is held against the inner wall surface 415 of the front wall 31 of the trigger 32.

In use, the action of the spring is such that the ends 410 and 642 are placed within the recess 412; Place the spring assembly 40 or 640 in the space 416 with the bearing flange. between the formation 518 and the back side 415 of the front wall 31 of the trigger 32. spring body 610 or 646 adjacent end 414 or 644; sliding movement of the outer surface of the trigger 32 with the back side 415 of the front wall 31 It can be obtained by

FIG. 18 shows a front view of the nose bushing body 16. Body 16 includes a cylindrical extension 702 having an internal cylindrical groove 704 . cylindrical Extension 702 has a first slot 706 passing through its cylindrical wall. Slot 706 is generally called a tangential slot, and is used to carry liquid. It leads to the cylindrical groove 704 in the tangential direction and further includes a second slot 708. The second slot 708 is generally called a radial slot. The liquid is guided radially to the cylindrical groove 704.

The cylindrical extension 702 has a small diameter and is coaxial with the outer cylinder 710, which has a large diameter. It is located in In the embodiment shown in FIG. 18, small diameter cylindrical extension 702 extend outwardly from web 712 , and web 712 extends outwardly from web 712 , which extends from cylindrical extension 702 . It is fixed in the position shown and has two channels 72 within the inner wall 714 of the outer cylinder 710. 0 and 722 are defined, and the water channels 720 and 722 are spray or stream. The liquid injected by the tangential slot 706 or radial slot 708.

Furthermore, as is clear from FIG. has a tab extension 726, as shown in FIG. 60 extends partially into the lower rear locating slot 728 of the upper side wall 730. It is growing.

As shown in FIG. 19, the nozzle cap 60 is generally rectangular, and The id wall 730 has stop markings. The left side wall 734 is the spray surface The right side wall 738 has a stream indication.

Further, the nozzle cap 60 has a bottom wall 742 as shown in FIG. .

Surrounded by the front part of walls 730, 734, 738 and 742, the nozzle cap A portion extending rearwardly from the front wall 744 of 60 is a first outer cylinder 746. and receives the outer cylinder 710 of the nose bushing body 16 therein. Outer side A slot 750 extends radially from the front wall 744 within the cylinder 746. A small diameter cylinder 748 extends rearward, and a slot 750 accommodates the nozzle cap. A tangential slot in cylindrical extension 702 upon selective rotation of rod 60. The slot 706 engages the radial slot 708. The small diameter cylinder 748 is cylindrical It is received on extension 702 .

By means conventional in the art, the nozzle cap 60 is moved from the stop position to the spray position. - position, the liquid in the channel 720 flows into the slot 75. 0, through the engagement slot 706 into the cylindrical groove 704, and into the nozzle spirally toward an outlet orifice 752 in the front wall 744 of the cap 60. sent forward.

In a similar manner, the nozzle cap 60 is rotated clockwise from the stop position to the stream position. When rotated 90 degrees, slot 750 in the wall of cylinder 748 becomes radial. The slot 708 is engaged or coincident with the liquid flowing from the channel 722 to the slot 750 and the slot 708 . through the lot 708 radially into the cylindrical groove 704 and further axially forward. and is discharged from orifice 752.

In this way, similar to previously proposed nozzle assemblies, the liquid flows through the water channel 720. 722, selectively alignable, axially or radially is introduced into the radially extending slot to direct the liquid into the orifice 752 in a spiral or axial direction. Feed in countercurrent, conical spray or atomized discharge or substantially axial stream The stream-shaped shape allows for the desired form of liquid release.

Additionally, different formations are available and via radial slots Engagement of one or more tangential slots with the waterway, or one Or multiple radial slots, radial or elongated slots, and water This allows for engagement with the road, as described in Finn's U.S. Patent No. 4.2. 34.128 or Dog U.S. Pat. No. 4,706,888. These disclosures are cited in the text.

FIG. 19 further shows the first formation 7 in the lower portion on the inside of the side wall 734. 54 is illustrated. This formation 754 defines a locking body 754. This locking body 754 extends from the edge 755 from the wall 734 inside the nozzle cap 60. It extends upward and inward at an angle. Similarly, within the lower portion of wall 738 The locking body 756 extends upward from the wall 738 inside the nozzle cap 60 to the edge 757. extends inward.

As explained in more detail below, stops 754 and 756 are typically leg bodies. 72 and within the nozzle assembly 58 .

The blocking engagement of leg bodies 72 involving locking bodies 754 and 756 is normally Then, the pull-away piece body 20 is pulled out, and the cylindrical body 20 is pulled out. N64 and leg body 72 from the locking position of each fork arm body 69 69 and at the same time as the user rotates the nozzle cap 60. the nozzle until it squeezes the side walls of body 14 in side walls 780 and 782. This prevents the nozzle cap 60 of the cap assembly 58 from rotating.

The blocking position of the locking body 72 is shown in FIG. As shown in Figure 23 , walls 780 and 782 of body 14 are squeezed or pushed inwardly, causing The leg body 72 is moved in the direction of the cylindrical potion 64, and the leg bodies 754 and 756 are When the blocking engagement of the nozzle cap 60 is released, the nozzle cap 60 is removed as shown in FIG. can be rotated clockwise or counterclockwise.

As shown in FIG. 23, walls 780 and 782 are compressed to form leg body 72. The blocking engagement between the leg bodies 754 and 756, particularly the leg body 754, is removed. Then, the nozzle cap 60 can be rotated 90 degrees counterclockwise to adjust the spray position. reach.

In this position, channels 720 and 722 are circularly routed through slots 750 and 706. It is connected to the cylindrical groove 704 and directs the swirled liquid into the front wall 744 of the nozzle cap 60. outlet orifice 752 and spray stream, i.e. nozzle cap 6 It is possible to release a mist-like liquid from zero. After the leg body 72 is pushed inside, the nozzle When the cap 60 is rotated 90 degrees clockwise, the locking body 756 passes over the leg body 72. It becomes possible to move by moving.

Each stop 754 and 756 has an upper surface 760, which includes a side wall. It extends toward a plane 762 that is approximately parallel to the plane of 734 or 738; The intersection of these planes 760 and 762 is edge 755 or 757.

Extension tab body 726 with slanted side edges 784 and 786 connects locking body 7 54 or 756 on either side, counterclockwise preventing further rotation of the nozzle cap 60, whether clockwise or clockwise; The nozzle cap 60 moves from the stop position to the spray position or from the stop position. It is important to ensure that you only move from Ru.

In FIGS. 2 and 24, the mounting block 67 of the pull-away piece body 20 is It has a generally rectangular flat body 801 and is placed above the top portion 22. After that, the mounting block 67 is pushed down to the top of the main body 14 in a snap manner. Lock the opening 68 in the portion 22. At the same time, each is the inner surface of the curved surface. Fork arm body 69 with surface 802 has spaced slots or notches. Received into the top portion 22 at the forward end via the joint 70 and slotted into the top portion 22 . Alternatively, the rear edge of the top wall 730 of the nozzle cap 60 can be inserted through the notch portion 71. The curved surface 802 is received around the cylindrical portion 64 of the body 14. , a lower portion received between the cylindrical portion 64 and the spaced leg bodies 72. It has one end 804 .

When the lower end 804 of the fork arm body 69 is arranged in this way, the leg body 7 The inward movement of body 14 is caused by interference when walls 780 and 782 of body 14 are squeezed. receive.

As a result, when Masaka tries to rotate the nozzle cap 60, the top of the main body 14 engagement slot 7 in top wall 730 of nozzle cap 60 The action of the fork arm body 69 extending through 0 and 71 and the locking bodies 754 and 756 When trying to rotate the nozzle cap 60 clockwise or counterclockwise, and a flap that obstructs the inward movement of the locking body 72, which allows the locking body 72 to move beyond the locking body 72. Rotation is prevented by the blocking action of the fork arm body 69.

As best illustrated in FIG. 25, the pull-away piece body 20 is It has a square groove 806 at the end, and the square groove 806 is received above the extension tab body 726. be taken over. The curved surface 802 connects the inside of the fork arm body 69 to the edge of the square groove 806. It extends laterally and downwardly.

The upper rear portion or pull tab body 808 of the pull-away piece body 20 has A pull display is provided.

Further, the lower side of the pull tab body 808 is provided so that the pull-away piece body 20 can be pulled. is beveled upward at end 812, as shown in FIG.

The mounting block 67 is a flat body below the flat body 801 of the pull-away piece body 20. 801 and below groove 815 of FIG. The front edge 816 and the rear edge 8 of the groove 815 are separated by the fillet body 818 of the body. 17.

The mounting block 67 has a curved surface 820, and has a longitudinally extending slot in the center. The kit 822 attaches the mounting block 67 to the left and right leg portions 824 and 826. It is divided. Each leg portion 824 and 826 has sloped surfaces 828 and 8, respectively. 30, and as clearly shown in FIG. It slopes upwardly and laterally towards portions 832 and 834.

When mounting block 67 is pushed downward through opening 68, ramps 828 and 8 30 engages the side of the opening 68 and the slot 822 engages the side of the opening 68 and the slot 822 and 826, and the shoulder portions 832 and 834 form the lower side edge 83 of the opening 68. 5 and 836 and adjacent side edges 835 and 836 of opening 68. Snaps into the locking position below the top wall portion 22 of the main body 14. Transform it inward until it fits. The curved surface 820 connects the cylindrical portion 64 and the top. The cylindrical port has a somewhat obstructive fit between it and the underside of the wall portion 22. 64 will be retained on the upper surface of the section 64.

As shown in FIG. 26, flat body 801 has lateral grooves 84 in its lower surface 842. 0, allowing the pull tab body 808 to be bent.

The pull-away piece body 20 has a tamper confirmation structure for the nozzle assembly 58. providing. At this point, if the pull-away piece body 20 is destroyed, If not present, the nozzle assembly of the trigger sprayer 10 is tampered. I can see that

In use, the user should press the pull tab body 8 at the rear end of the pull-away piece body 20. Pinch 08 and pull it upwards. Sloped portion 812 provides a knob for pull tab body 808 and the lateral groove 840 provides upward bending of the pull tab body 808. . When the pull tab body 808 is pulled upward, the rear edge 81 of the groove 815 first At 7 the fillet body 818 is broken and at the forward edge 816 of the groove 815 The destruction of the fillet body 818 continues. After the fillet body 818 is destroyed, pull The away piece body 20 is easily removed from the sprayer body and the fork arm Remove the body 69 from the engagement slots or notches 70 and 71 and insert the fork The lower end 804 of the arm body 69 is inserted between the cylindrical portion 64 and the leg body 72. Remove from locking position and use trigger sprayer 10 on user is possible.

In FIG. 28, the fillet body 57 is removed and removed from the cylindrical base portion 26. The locking ring body 28 is shown before it is removed. Cylindrical base part 26 and rock The ring body 28 is a bottle cap assembly 902 constructed in accordance with the present invention. It forms a bottle cap along with the cylindrical portion 904 of the bottle neck portion 30. forming a top/bottleneck assembly 906.

The locking ring body 28 is not destroyed by being twisted relative to the cylindrical base portion 26. is moved upward as shown by the arrow and the locating rib is moved as shown by the dashed line. Frictionally engages segment 76 . At this position, the cylindrical base part 26 and locking The ring body 28 is ready to be pressed downward against the bottle neck portion 904. However, the locking ring body 28 is temporarily held by frictional engagement with the rib segment 76. is held in place.

As shown, a cylindrical base portion 26 is provided on each side of the sprayer body 14. spaced, upwardly extending slots 911 and 91 formed therein; It has a cylindrical wall portion 908 with two bears between which two A locking tab body 53 is defined. At the upper end of each locking tab body 53, A line portion of reduced thickness portion 914 is provided to provide a hinge portion 914; Each locking tab body 53 has an inner side facing the cylindrical wall 908 of the cylindrical base portion 26. The loop can be bent outward.

The catch receiving opening 54 in each tab body 53 is generally square as shown. . Below the opening 54 on each locking tab body 53, there is a The outer surface has a sloped lower surface 917 that slopes upwardly and outwardly to a side surface 918. A laterally extending flange body 916 is provided. top surface or shoulder The portions 919 extend horizontally and radially from the tab body 53 to the outer surface 918 and face upwardly. ing.

Bottle neck portion 904 is generally cylindrical and has an outer cylindrical surface 920 and an annular top. 922. A conventional threaded body 924 is mounted on the cylindrical outer surface 920. is provided.

An annular rib body 926 is provided below the threaded body 924 on the outer cylindrical surface 920. The annular rib body 926 has a generally rectangular shape on the diametrically opposite side of the outer cylindrical surface 920. a locking member having a lower, horizontally extending shoulder portion 930; a stop 928 and an upper sloped surface 93 sloped downwardly from the outer cylindrical surface 920; 2. Each of the locks 928 is generally square and has an outer cylindrical top surface. 920 and each side of each locking body 928 includes a stock. The post body 934 is installed, and the locking tab body 53 is a locking stop body. 928 to provide positioning of the locking tab body 53 when pressed down.

As shown in FIG. 30, the locking ring body 28 has an inner cylindrical surface 9 40 has an annular groove 74 formed thereon. The annular groove 74 is a locking ring. When the body 28 is moved downwardly on the cylindrical base 26, the annular lip snaps into place. 75 is received.

As shown in FIG. 31, the cylindrical wall 908 of the cylindrical base portion 26 is an inner circle that is typically received on a cylindrical portion 904 and typically has no screws. It has a cylindrical surface 942.

Cylindrical wall 908 extends to upper top wall 944 of cylindrical base portion 26 .

A sealing ring body 948 is located inside the cylindrical surface 942 and connects the lower external sloped surface. 950 and extends downwardly from the upper top wall 944, as shown in FIG. The cylindrical interior surface of the cylindrical portion 904 of the bottle neck portion 30 as shown in FIG. 954 and is received and held by frictional force.

As shown in FIG. 32, the locking ring body 28 is a locking ring body 28 is placed on the tab body 53, the flange body 916 has no receptacle on any protrusion. It has a downwardly sloped or grooved inner surface 960 that is curved.

As shown in Figure 32, the locking ring body should be kept in the pulled position for two days. The cylindrical base portion 26 in the held state (FIG. 28) is similar to the cylindrical shape of the bottle neck portion 30. Pressed downwardly above portion 904 and sealing ring body within interior surface 954 948, and at the same time each locking stopper 928 locks the tab body 53. each until it snaps into engagement with one of the openings 54 in the locking tab body 53. The locking stop 928 is pushed downwardly onto the sloped surface 932. after that, The locking ring body 28 has a rib body 75 that snaps into the annular groove 74. Until received, its internal surface 940 is in frictional engagement with the rib body 76, and the locking The locking ring body 28 is detachable on the spot against vertical movement of the locking ring body 28. The rib segment 76 is locked in the upper annular shape of the locking ring body 28. It is located adjacent to the edge. This locking relationship is illustrated in Figure 32. Ru.

The bottle neck/bottle cap assembly 906 shown in FIGS. 32 and 10 is , quickly push the bottle cap assembly 902 onto the bottle neck 30. and the opening in the locking ring body 928 and the locking tab body 53 54 causes the vertical separation of the cylindrical base portion 26 from the bottle neck portion 30. positioning the trigger sprayer 10 in the desired positional relationship with the bottle 12. , preventing relative rotational movement between the cylindrical base portion 26 and the bottle neck portion 30. There is.

FIG. 4 FIG. 20 FIG, 2B FIG. 29

Claims (15)

[Claims] 1. In a trigger-operated pump mechanism used in a fluid discharge device including the main body. , a cylinder within the body of the ejection device and a piston received within the cylinder; ton, movably mounted on the body, having a front side and a rear side, and on the piston. A double trigger and The trigger is offset from the main body, and the piston is covered with the trigger. non-metallic biasing means for biasing the cylinder from said cylinder. A trigger-operated pump mechanism, wherein the bias means is connected to the main body and the trigger. an elongated, facing flat surface and opposing ends located between the A separate, non-coiled, elongated, generally flat sprue with and a back side of the trigger has a rear wall; Spring means is arranged on said spring located adjacent said rear wall of said trigger. one flat surface of one end bosion of one end of the triggering means and disposed rearwardly of said trigger; and the other end of the spring means is positioned and engaged with the main body. A pump mechanism featuring: 2. Said bias spring means is a small piece made of glass fiber reinforced plastic. Claim 1, characterized in that it includes at least one elongated flat spring body. Pump mechanism included. 3. The bias spring means is a spring comprising two elongated leaf spring bodies. 2. The pump mechanism of claim 1, wherein the pump mechanism is a spring-leaf assembly. 4. Claim characterized in that the leaf spring body is connected at each end. The pump mechanism according to item 3. 5. The body has a recess on the cylinder, and other than the spring means. the one flat surface of the one end portion of the spring means receiving one end; slidingly engaging said rear wall of said trigger; Claim 1, wherein the opposite end has a shape to be received in the recess. pump mechanism. 6. The body has a recess on the cylinder, and the spring assembly the other end of the leaf spring body of the spring assembly; At least one has a notch with sharp corners adjacent each end, and the front One edge portion of the recessed portion has a shoulder portion, and the notch is connected to the leaf spout. engaging a notch in one end of the ring and the other end of the spring assembly; 4. The pump mechanism according to claim 3, wherein the pump mechanism is held in the recess. 7. Each end of each leaf spring body has a rounded end on one side thereof. sloping, each leaf spring body being wider in the center than at the ends The pump mechanism according to claim 6, characterized in that: 8. a piston rod extending outwardly from the piston and having an outer end; a first cover on the outer end of the tongue rod and covering the trigger; and means for the first covering on the back side of the trigger and on the piston rod; and a second covering means for covering the means. The pump mechanism according to claim 1, characterized in that: 9. The first covering means and the second covering means are mutually openable. 9. The pump mechanism according to claim 8, wherein the pump mechanism is covered. 10. The first covering means and the second covering means are snap-type fittings. Claim 8, characterized in that the parts are covered with each other by cutting means. pump mechanism. 11. The first covering means is arranged laterally at the outer end of the piston rod. 9. A pump according to claim 8, characterized in that it includes a short cylinder extending in the direction. mechanism. 12. The short cylinder has a V-shaped notch within the cylinder extending in the axial direction thereof. and the second covering means is arranged on the back side of the trigger at a distance. bearing form containing a partially cylindrical bearing seat. The bearing formation includes a bearing formation of the short cylinder. and an outer end of the V-shaped section to be received within the V-shaped notch. and a hook member disposed to extend within the V-shaped notch. The pump mechanism according to claim 11. 13. The top of said V-shaped notch defines a pivoting seat, and said hook portion characterized in that the top of the V-shaped formation at the end of the timber defines a fulcrum The pump mechanism according to claim 12. 14. The V-shaped notch is a V-shaped apex at an outer end of the V-shaped cross section of the hook member. has a V-shaped apex angle that is sufficiently larger than the apex angle of the trigger, and the trigger is in its normal position. When moving from the position to the fully constricted position, the V-shaped fulcrum end bowsion 14. The vehicle according to claim 13, wherein the vehicle is rotated on the V-shaped pivot type seat. pump mechanism. 15. The release device includes an outlet means and a container for covering the release device. the body, the piston, the trigger, and a front The outlet means and the coupling means are all non-metallic recycled materials. A pump mechanism according to claim 1, characterized in that it is made of a material.