JPH09225363A - Manual trigger type dispenser and its nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operability of a nozzle cover without deterioration in a function as a child-proofing mechanism and handling. SOLUTION: A nozzle cover 14 which covers the front surface of an orifice 12 liquid-tightly at a closing position is installed integrally at the end of a nozzle through a hinge 44, and its open position is set up as a slant position slanting upward to the upper surface of a dispenser main body 22. A fixing piece 50 is attached integrally to the outer surface of the nozzle cover 14, and the cover 14 can be fixed and held at an open position with the fixing piece inserted into a corresponding recessed part 52.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual trigger type dispenser for sucking and pressurizing a liquid in a container into a cylinder and outflowing it from an orifice by reciprocating motion of a piston in conjunction with swing of a trigger, and a nozzle thereof.

[0002]

2. Description of the Related Art Due to the environmental problem of depletion of the ozone layer due to CFC gas, a manual trigger type dispenser that pressurizes and discharges the liquid by the reciprocating motion of a piston linked with the swing of the trigger without using CFC gas has been particularly noted in recent years. Has been done.

This type of dispenser is formed, for example, with a trigger that can be pulled (swing) freely against the biasing force of the return spring, and a piston that can reciprocate in the cylinder can be linked to the trigger. It is connected. And
The dispenser is designed so that the reciprocating motion of the piston in the cylinder accompanying the swing of the trigger sucks up and pressurizes the liquid in the container into the cylinder, and causes this pressurized liquid to flow out from the orifice (outflow hole) at the tip of the nozzle. It is configured.

By the way, in such a manual trigger type dispenser, the liquid sucked into the cylinder is kept filled in the cylinder until the next pressurization, and the trigger is
Stand by at the initial position returned by the biasing force of the return spring.

Since the dispenser is attached to the mouth of the container containing the liquid, the center of gravity of the container after the dispenser is mounted is inevitably high. As the liquid in the container decreases, the container is Prone to instability. Further, in this type of dispenser, in order to obtain good operability, usually, the pulling force of the trigger required for the outflow of the liquid is not set so large.

That is, in the trigger type dispenser, when the container after the dispenser is mounted falls over due to contact or the like, the trigger is pushed against the biasing force of the return spring due to the impact of the fall. The liquid in the cylinder may flow out.

Further, the pulling force of the trigger required for this type of dispenser is not so large, and in general, even children such as infants (hereinafter referred to as infants) can be towed, so that the infants accidentally leak the liquid. There is a good possibility of causing it. If an infant or the like accidentally pulls the trigger to let the liquid flow out, the liquid may get into your eyes,
Since there is a risk of accidental accidents such as touching the skin, it is preferable from a safety point of view to be able to reliably prevent the liquid from flowing out except when necessary.

Therefore, in order to prevent such an unexpected accident, for example, the front surface of the orifice is liquid-tightly covered with a nozzle cover so that the outflow of the liquid can be prevented.
There is provided a manual trigger type dispenser provided with a so-called child proof mechanism (accident prevention mechanism).

In such a nozzle cover type child proof mechanism, for example, a protrusion-like sealing body for ensuring liquid tightness by closely contacting with the orifice is provided on the inner surface (rear surface) of the nozzle cover, and is closed at the closed position. The locking and holding of the nozzle cover prevents the liquid from flowing out of the orifice when not in use.

[0010]

By the way, in a dispenser having a nozzle cover as described above, in order to prevent the nozzle cover from obstructing the outflow of the liquid from the orifice at the time of use, the dispenser usually has a recess on the upper surface of the dispenser. By fitting the locking pieces, the nozzle cover is held in an open position substantially parallel to the upper surface of the dispenser, thus ensuring ease of use during use.

Here, this type of nozzle cover is usually
Since it is integrally formed with the tip of the nozzle via a thin portion serving as a hinge, in a known configuration in which the parallel position with respect to the upper surface of the dispenser is the open position, the reaction force generated at the hinge becomes large. That is, in the known configuration, a locking force that resists the reaction force generated at the hinge is required when holding the nozzle cover in the open position.

However, if the nozzle cover is held in the open position with a large locking force, a great amount of force is required for locking and unlocking in the open position, which may complicate the operation. There is.

Further, in the known structure, since the nozzle cover is locked and held at a position substantially parallel to the upper surface of the dispenser main body, a slight gap left between the upper surface of the dispenser main body and the nozzle is used. Operation is required upon unlocking in the open position. Therefore,
Since an easy release operation cannot be obtained, a drop in operability cannot be avoided from this point as well.

It is an object of the present invention to provide a manual trigger type dispenser which improves the operability of a nozzle cover without lowering the functionality and ease of use as a child proof mechanism, and a nozzle thereof.

[0015]

In order to achieve this object, according to the manual trigger type dispenser of the present invention, a nozzle cover having a projection-shaped sealing body which can be brought into close contact with the front surface of the orifice integrally with the inner surface is provided. , It is rotatable between a closed position that covers the front face of the orifice and an open position that is removed from the front face of the orifice. It is provided in.

Then, the opening position of the nozzle cover is set as an inclined position which is inclined upward with respect to the upper surface of the dispenser by a specific angle or more, and a locking piece is integrally provided on the outer surface of the nozzle cover so as to project on the upper surface of the dispenser. The nozzle cover can be locked and held at the open position by fitting the locking piece into the corresponding recessed opening.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings.

As shown in FIGS. 1 and 2, in the manual trigger type dispenser 10 according to the present invention, the nozzle cover 14 that covers the front surface of the orifice 12 serving as the liquid outflow hole in a liquid-tight manner is provided with the tip of the nozzle 16. It is provided integrally with the portion 16a.

As can be seen in FIG. 1, the dispenser 10 comprises a trigger 20 which is pushed forward (to the left in the figure) to an initial position by a return spring (not shown), the trigger being, for example, a dispenser body 22. Is pivotally connected to and supported by a pivot point (not shown) with respect to the side wall so as to be swingable in the front-rear direction.

Further, in this type of dispenser 10, a piston 26 that reciprocates inside the cylinder 24 is connected to the trigger 20 in an interlockable manner. The dispenser 10 is provided with a rotatable bottle cap 28,
It is detachably attached to the container 30 by screwing the bottle cap onto the 30a, and the piston inside the cylinder 24 is attached.
By the reciprocating motion of 26, the liquid in the container is sucked up from the suction tube 32 through the primary valve into the cylinder so that the liquid can be pressurized.

The pressurized liquid flows out of the cylinder 24 through the secondary valve and flows through the outflow passage communicating with the cylinder and the nozzle 16. A spinner (vortexing member) 34, to which a biasing force is applied by an integral spring member (not shown), is built in this nozzle 16, and the pressurized liquid flowing through the nozzle is vortexed by the spinner, and the nozzle front end It is possible to flow out as a spray flow from the orifice (outflow hole) 12 of.

This manual trigger type dispenser
The internal structure and operation principle of 10 are the same as known ones, and since the structure itself is not the gist of the present invention, it will not be described in detail here. As an internal structure of this type of manual trigger type dispenser 10, for example, USP No. 4
The known structure disclosed in 815663 can be exemplified.

In the manual trigger type dispenser 10, most of the constituent members are molded from plastic, and the container 30 in which the dispenser is mounted is also usually molded from plastic.

As can be seen by looking at FIG. 3 in addition to FIG.
In this embodiment, the nozzle 16 is, for example, a nozzle body 16b having a substantially rectangular tip 16a as a substantially cylindrical body.
An orifice 12 is formed substantially at the center of a wall surface 16c that is the bottom of the nozzle body and is integrally formed at the front end of the nozzle body.

In such a nozzle 16, the nozzle body 16b is connected to the outflow passage communicating with the cylinder 24 as a part of the outflow passage of the dispenser 10, and as shown in FIG. Dispenser body 22 in part 36
By engaging and engaging the engaging claw 22a at the front end of
The nozzle is non-rotatably attached to the dispenser body.

As shown in FIGS. 1 to 3, in the nozzle 16, a support piece 38 capable of mounting and supporting the tip portion of the dispenser body 22 is extended rearward from the nozzle tip portion 16a to be integrated. The nozzle 40 and the dispenser body can be inseparably connected by fitting and engaging the protrusion 40 provided on the support piece with the corresponding engaging hole 42 of the dispenser body.

As shown in FIGS. 2 and 3, the nozzle cover 14
Through the hinge 44, which is a thin section,
It is molded integrally with a. The nozzle cover 14 is bent at the hinge 44 so as to be closed between a closed position shown in FIG. 4 that liquid-tightly covers the front surface of the orifice 12 and an open position shown in FIG. Nozzle tip 16a
As a result, it is rotatable with respect to the nozzle 16.

As shown in FIG. 4, at the closed position of the nozzle cover 14, a protrusion-shaped sealing body 46 that is in close contact with the front surface of the orifice 12 and can seal the orifice by this close contact is integrated with the inner surface of the nozzle cover. It is provided in. That is, in the dispenser 10, the orifice 12 at the tip of the nozzle is liquid-tightly covered by the close contact of the sealing body 46 with the closing of the nozzle cover 14, and the outflow of the liquid from the orifice is blocked.

In such a nozzle cover 14, for example, a pair of fitting pieces 48 that can be fitted around a cylindrical protruding piece 47 protruding forward inside the nozzle tip portion 16a,
The nozzle cover is integrally projectingly provided on the inner surface, and the fitting of the fitting piece enables the nozzle cover to be locked and held at the closed position (see FIGS. 2 to 4).

In such a structure, the orifice 12 is sealed by the sealing member 46 when the nozzle cover 14 is closed, so that the orifice is covered in a liquid-tight manner and the liquid is prevented from flowing out from the orifice. In other words, when the nozzle cover 14 is closed, the liquid will not flow through the orifice even when the trigger 12 swings.
Since it does not flow out from 12, the nozzle cover provided with the sealing body 46 functions as a child proof mechanism (accident prevention mechanism) of the dispenser 10 and accidentally triggers the container 30 when the container 30 is overturned or when a child or other child is mischievous. It is possible to prevent the liquid from flowing out due to the pushing.

Then, for example, the nozzle cover 14 is rotated by pulling the free end of the nozzle cover 14 to release the fitting between the cylindrical projecting piece 47 and the fitting piece 48, and the nozzle cover 14 is moved to the orifice 12.
If it is removed from the front surface of the device and the function as the child proof mechanism is released, the original purpose of the dispenser 10, the outflow of liquid, can be obtained under the pulling of the trigger 20.

By the way, in a dispenser provided with this type of nozzle cover, the nozzle cover is locked at a predetermined open position so that the nozzle cover does not hinder the outflow of liquid from the orifice when the dispenser is used. It can be held. Here, in the dispenser 10 of the present invention, for example, as shown in FIG.
An inclined position that is inclined upward with respect to the upper surface of the nozzle by a specific angle α or more is set as the open position of the nozzle cover 14.

The angle α between the dispenser body 22 and the nozzle cover 14 is the angle that leaves a gap at a height that allows at least one finger of the user to enter between the upper surface of the dispenser body 22 and the free end of the nozzle cover. , For example, set to about 35 °.

As can be seen from FIG. 3 in addition to FIG.
In the present invention, the nozzle cover 14 is formed integrally with the locking piece 50 projectingly provided on the outer surface of the dispenser.
By fitting the locking pieces into the corresponding recesses 52 that are opened on the upper surface of 10, it is possible to lock and hold the open position.
The concave portion 52 is formed by partially blocking the notched groove 53 provided from the support piece 38 to the nozzle cover 14 with the front end portion of the dispenser main body 22, thereby forming the nozzle tip portion.
It is formed in an open shape on the upper surface of 16a.

That is, the recess 52 is formed by the dispenser body 22.
With the front end of the nozzle as the rear edge, for example, the nozzle front end 16
The size is specified to correspond to the stepped portion 36 of a.

The locking piece 50 of the nozzle cover is a recess
The width is formed so that it can be locked when it is fitted into 52. Here, in the present invention, the locking piece 50 is formed with a pair of parallel ends 50a, 50b which are separated in a direction orthogonal to the extending direction of the hinge 44 and extend in the same direction as the hinge. .

A locking piece 50 having such parallel ends 50a and 50b
In FIG. 2, as shown in FIG.
The a can function as a fitting end that fits into the recess 52. That is, by fitting the end (fitting end) 50a into the recess 52, the nozzle cover 14 can be held in the open position.

As can be seen from FIG. 2, in this structure, the terminal 50 on the other side of the locking piece 50 is formed.
b functions as an engaging end that engages with the front end of the dispenser body 22 that is the peripheral edge of the recess 52, and the opening position of the nozzle cover is controlled by the rotation restriction of the nozzle cover 14 after the engaging position by this engagement. It is prescribed.

That is, in the present invention, the locking piece 50
However, since it functions as both a holding means for holding the nozzle cover 14 in the open position and a restricting means for restricting the rotation of the nozzle cover after a predetermined tilt angle, the opening is performed without complicating the configuration. Locking the nozzle cover in position,
It can be easily held.

As described above, in the manual trigger type dispenser 10 of the present invention, the open position of the nozzle cover 14 that can function as a child proof mechanism is
It is set as an upward tilt position with respect to the upper surface of the dispenser body 22. That is, when the nozzle cover 14 is open, an appropriate gap, for example, a gap that is high enough to receive one finger of the user, is left between the free end of the nozzle cover and the upper surface of the dispenser body 22. Because
The rotation operation of the nosle cover at the time of releasing the lock at the open position can be easily performed by inserting a finger into the gap and hooking the free end of the nozzle cover on the finger.

Therefore, the unlocking operation of the nozzle cover 14 at the open position can be performed smoothly and easily, and the operability of the nozzle cover when unlocking is surely improved.

In the present invention, the nozzle cover 14
However, since it is locked and held at a position inclined upward with respect to the upper surface of the dispenser body 22, the reaction force generated on the hinge 44 in the holding state of the nozzle cover is not so large. That is, since the nozzle cover 14 can be held in the open position without increasing the locking force between the locking piece 50 and the recess 52 so much,
The operation force at the time of releasing the lock at the open position can be reduced, and from this point as well, the operability of the nozzle cover at the time of releasing the lock can be reliably improved.

As described above, in the closed position, the nozzle cover 14 causes the fitting piece 48 to move into the tubular protruding piece of the nozzle.
Since it is held by being fitted around 47, it is possible to secure firm locking and holding that is completely unrelated to locking and holding at the open position. In other words, even if the operating force for unlocking in the open position is reduced, the functionality of the child proof mechanism is not adversely affected. The operability of the cover 14 is improved.

In the present invention, the end parallel to the locking piece 50 is
Since 50a and 50b are provided and the parallel ends function as the fitting end and the engaging end, respectively, the nozzle cover 14 can be easily set and held in the inclined position without complicating the configuration. Become.

Here, as shown in FIGS. 2 and 3, for example, the operation piece 56 may be extendedly provided at the free end of the nozzle cover 14. With such a configuration, since the operation piece can be used as the release operation means at both the closed position and the open position, the operability of the nozzle cover is further improved.

Then, such an operation piece 56 is provided in the dispenser body 22 while the nozzle cover 14 is held in the open position.
It is preferable to set an angle that is substantially parallel to the upper surface of the. In such a configuration, while the nozzle cover 14 is held in an inclined state with respect to the upper surface of the dispenser body 22, the operation piece 56 does not damage the gap left by the inclination of the nozzle cover at a position where a finger is easily caught. Since it is maintained, it is easy to hook a finger on the operation piece, and high operability can be secured from this point as well.

Further, when the operation piece 56 is set to such an angle, as shown in FIG. 4, the end of the operation piece projects forward from the nozzle cover 14 in the closed position, so that the operability in the closed position is also improved. It is fully improved.

By the way, in the embodiment of the present invention, the inclination angle α of the nozzle cover 14 is exemplified to be 35 °, but the nozzle cover 14 is provided with a gap to which one finger of the user can be inserted. It suffices to hold the nozzle cover by leaving it between the free end and the top surface of the dispenser body 22.
Other angles may be used as long as the angle is equal to or more than °.

However, as in this embodiment,
If the nozzle cover 14 is set to an opening position of 35 ° above the upper surface of the dispenser body 22, the nozzle cover is held at a position inclined upward with respect to the upper surface of the dispenser body, but the amount of protrusion due to the inclination. Since it does not give an uncomfortable feeling when used, the operability of the nozzle cover can be improved without lowering the usability of the dispenser.

Further, in this embodiment, the recess 52
Is provided on the upper surface of the nozzle tip portion 16a, and the locking piece 50 is provided at a position where it can be fitted into this recess, that is, a position adjacent to the hinge 44.
However, the position of the recess and the locking piece is not limited to this, because it is sufficient if the nozzle cover 14 can be locked and held at the open position by fitting the locking piece into the recess. Alternatively, the dispenser main body 22 may be provided with a recess, and a locking piece that can be fitted into the recess may be provided near the free end of the nozzle cover.

However, in order to hold the nozzle cover 14 tilted upward with respect to the upper surface of the dispenser body 22, the locking piece 50 is provided with a gap between the nozzle cover and the dispenser body, that is, a length corresponding to the tilt angle. Must be set to In other words, if it is attempted to provide the locking piece 50 near the free end of the nozzle cover 14, its length will surely become longer, and therefore, the projection of the locking piece toward the front at the closed position will improve safety and appearance. There is a possibility that the quality and the like may deteriorate.

Therefore, if the locking piece 50 is provided at a position adjacent to the hinge 44 as in this embodiment, the length thereof can be sufficiently suppressed, and the safety and the appearance quality can be easily improved. Get rid of.

Further, although the locking piece 50 is embodied as a shape having parallel ends 50a and 50b, it is sufficient if it can be held at a specific position by being fitted into or engaged with the corresponding recess 52, and The shape of the stopper is not limited to this, and, for example, a configuration may be adopted in which one end of the locking piece is provided and the end is brought into contact with the bottom surface of the recess or the like to function as both the fitting end and the engaging end. Good.

However, as in this embodiment,
If the parallel ends 50a, 50b of the locking pieces function as the fitting end and the engaging end, respectively, the amount of fitting of the locking piece 50 into the recess 52, that is, the length of the locking piece can be sufficiently suppressed. Safety and appearance quality are sufficiently improved.

In the embodiment of the present invention,
Although the nozzle 16 is illustrated as an integral type in which the front end portion 16a and the nozzle body 16b are integrated, the present invention is not limited to this, and for example, the nozzle body is molded separately from the front end portion and formed into a corresponding tubular body. The nozzle may be formed by inserting and connecting the nozzle body of the above. In this case, the tip portion 16a of the nozzle is generally called a nozzle cap, and the nozzle cover 14 is provided integrally with this nozzle cap, and the cylindrical projecting piece 47 has the orifice 12 on the wall surface 16c, so that the nozzle cap Formed as a part.

Further, in this embodiment, the inclination angle of the nozzle cover 14 is embodied as an angle with reference to the upper surface of the dispenser body 22, that is, the dispenser 10. However, the upper surface of the dispenser is the nozzle of the nozzle. Since it is substantially parallel to the axis of the main body 16b, even if it is set as an angle inclined upward by about 35 ° with respect to the nozzle main body, and by extension, the axis of the nozzle 16, the same effects as the effects of this embodiment described above are obtained. Needless to say, can be obtained.

The above-mentioned embodiments are for explaining the present invention, and are not intended to limit the present invention at all, and all modifications and alterations made within the technical scope of the present invention are also applicable to the present invention. Needless to say, it is included.

[0058]

As described above, according to the present invention, the open position of the nozzle cover that can function as the child proof mechanism is set as the upwardly inclined position with respect to the upper surface of the dispenser. By utilizing the gap between the free end and the free end, the unlocking operation at the open position becomes easy. And since the reaction force generated in the hinge at the open position is sufficiently suppressed,
The locking force between the locking piece and the recess can be made sufficiently small.

Therefore, the unlocking operation of the nozzle cover at the open position can be performed smoothly and easily, and the operability of the nozzle cover when unlocking is surely improved.

The nozzle cover can be securely locked and held at the open position, and even if the open position of the nozzle cover is tilted upward with respect to the upper surface of the dispenser, there is no need to lock or hold the nozzle cover at the closed position. Since there is no adverse effect, the functionality of the child proof mechanism and the operability of the nozzle cover are improved without degrading ease of use.

If the locking piece is provided with a parallel end and the end on the hinge side functions as the fitting end and the end on the other side functions as the engaging end, the length of the locking piece can be suppressed, and safety, The appearance quality is sufficiently improved.

Further, if the concave portion is provided on the upper surface of the front end portion of the nozzle and the locking piece is provided at a position adjacent to the hinge,
Also in this respect, since the length of the locking piece can be suppressed, the safety and the appearance quality can be further improved by suppressing the protrusion of the locking piece at the closed position of the nozzle cover.

If the operation piece is provided so as to extend from the free end of the nozzle cover, the operation piece can be used as a release operation means at both the closed position and the open position, so that the operability of the nozzle cover is further improved. It

Further, when the operation piece is set at an angle which is substantially parallel to the upper surface of the dispenser when the nozzle cover is held in the open position, the nozzle cover is held in an inclined state with respect to the upper surface of the dispenser. The operation piece is maintained at a position where it is easily caught by a finger without damaging the gap left by the inclination of the nozzle cover,
It is easy to hook a finger on the operation piece, and high operability can be secured from this point as well.

[Brief description of drawings]

FIG. 1 is a schematic side view of a partially broken manual trigger type dispenser according to the present invention.

FIG. 2 is a vertical cross-sectional view of the nozzle when the nozzle cover is open.

FIG. 3 is a perspective view of the nozzle when the nozzle cover is open.

FIG. 4 is a vertical cross-sectional view of the nozzle when the nozzle cover is closed.

[Explanation of symbols]

 10 Manual trigger type dispenser 12 Orifice 14 Nozzle cover 16 Nozzle 16a Nozzle tip 20 Trigger 22 Dispenser body 30 Container 44 Hinge 50 Locking piece 50a End (fitting end) 50b End (engaging end) 52 Recess 56 Operation piece

Claims (12)

[Claims] 1. A liquid pressurized and sucked from a container into a cylinder by reciprocating motion of a piston interlocked with a swing of a trigger is caused to flow out as a pressurized liquid from an orifice at a tip of a nozzle forming a part of a liquid outflow passage. In a manual trigger type dispenser, a nozzle cover that integrally has a protrusion-shaped sealing body that can be brought into close contact with the front surface of the orifice is formed between the closed position that liquid-tightly covers the front surface of the orifice and the open position that is removed from the front surface of the orifice. It is freely rotatable and can be locked and held at each position, and is integrally provided on the tip of the nozzle via a thin-walled hinge. The nozzle cover is opened above the dispenser upper surface by a certain angle or more. In addition to setting it as an inclined position, a locking piece is integrally projected on the outer surface of the nozzle cover, and it corresponds to the opening on the top surface of the dispenser. Under fitted locking piece into the recess, manual trigger type dispenser the nozzle cover and wherein the locking and can be held in the open position. 2. A liquid pressurized and sucked from a container into a cylinder by the reciprocating motion of a piston interlocked with the swing of a trigger is caused to flow out as a pressurized liquid from an orifice at a tip of a nozzle forming a part of an outflow passage of the liquid. In a manual trigger type dispenser, a nozzle cover that integrally has a protruding sealing body that can be in close contact with the front surface of the orifice is provided between a closed position that liquid-tightly covers the front surface of the orifice and an open position that is removed from the front surface of the orifice. It is freely rotatable and can be locked and held at each position, and is integrally provided at the tip of the nozzle via a hinge that is a thin part, and at least one finger has a clearance at the height of the upper surface of the dispenser body. The opening position of the nozzle cover is set as the inclined position between the nozzle cover and the free end, and the locking piece is integrated with the outer surface of the nozzle cover. Set, and the corresponding under fitted locking piece into the recess, manual trigger type dispenser the nozzle cover and wherein the locking and can be held in the open position an opening in the upper surface of the dispenser. 3. A liquid pressurized and sucked from a container into a cylinder by the reciprocating motion of a piston interlocked with the swing of a trigger is caused to flow out as a pressurized liquid from an orifice at the tip of a nozzle forming a part of a liquid outflow passage. In a manual trigger type dispenser, a nozzle cover that integrally has a protrusion-shaped sealing body that can be brought into close contact with the front surface of the orifice is formed between the closed position that liquid-tightly covers the front surface of the orifice and the open position that is removed from the front surface of the orifice. It can be freely rotated and locked and held at each position, and is integrally provided at the tip of the nozzle via a hinge that is a thin part, and the open position of the nozzle cover is 35 ° or more above the upper surface of the dispenser. In addition to setting it as a tilted position, the locking piece is integrally projected on the outer surface of the nozzle cover,
A manual trigger type dispenser characterized in that the nozzle cover can be locked and held at the above-mentioned open position by fitting a locking piece into a corresponding concave portion opened on the upper surface of the dispenser. 4. The nozzle cover locking piece is formed with a pair of parallel ends that are separated in a direction orthogonal to the extending direction of the hinge and extend in the same direction as the hinge. Under the motion, the end of the hinge side is fitted and held in the corresponding recess as the fitting end, and the end of the other side is used as the engaging end to engage with the corresponding peripheral edge of the recess so that the nozzle cover of the dispenser The manual trigger type dispenser according to claim 1, wherein the manual trigger type dispenser is set at an inclined position with respect to the upper surface. 5. A recess on the upper surface of the dispenser is provided on the upper surface of the tip of the nozzle, and the rear end of the recess is defined with the front end of the dispenser main body, which is continuously juxtaposed to the upper surface, as a peripheral edge, and the engagement of the nozzle cover is defined. A stop is formed adjacent to the hinge, having a pair of parallel ends separated in a direction orthogonal to the extending direction of the hinge and extending in the same direction as the hinge,
Under the rotation of the nozzle cover by the hinge, the end of the hinge side is fitted and held in the recess as the fitting end, and the end of the other side is engaged as the engaging end with the corresponding peripheral edge of the recess to form the nozzle. The manual trigger type dispenser according to claim 1, wherein the cover is set at an inclined position with respect to the upper surface of the dispenser. 6. The manual trigger type dispenser according to claim 1, wherein an operation piece is provided to extend at a free end of the nozzle cover. 7. The operation piece, which is substantially parallel to the upper surface of the dispenser when the nozzle cover is held in the open position, is provided to extend to the free end of the nozzle cover. Manual trigger type dispenser. 8. A manual trigger type dispenser for sucking and pressurizing a liquid in a container into a cylinder by the reciprocating motion of a piston interlocked with the swing of a trigger is attached and defined from an orifice at its tip. In a nozzle that discharges pressurized liquid, a nozzle cover that integrally has a protrusion-shaped sealing body that can be brought into close contact with the front surface of the orifice on the inner surface has a closed position that covers the front surface of the orifice in a liquid-tight manner and an open position that is removed from the front surface of the orifice. It is provided integrally with the tip of the nozzle via a thin hinge so that it can be freely rotated and locked and held at each position, and the open position of the nozzle cover is specified above the nozzle axis. It is set as an inclined position that is inclined by more than an angle, and a locking piece is integrally projected at a location adjacent to the hinge on the outer surface of the nozzle cover, and the tip of the nozzle is Under fitting the engaging pieces of the open recess in the upper surface, the nozzle of the manual trigger type dispenser the nozzle cover is characterized in that the locking, can be held in the open position. 9. The nozzle according to claim 8, wherein the open position of the nozzle cover is set as an inclined position inclined upward by 35 ° or more with respect to the axis of the nozzle. 10. The nozzle cover locking piece is formed with a pair of parallel ends separated in a direction orthogonal to the extending direction of the hinge and extending in the same direction as the hinge, wherein the hinge cover is rotated by the hinge. Under the motion, the end of the hinge side is used as a fitting end to be fitted into and held in the concave portion of the upper surface of the tip of the nozzle, and the end of the other side is used as an engaging end to engage with the corresponding peripheral edge of the concave portion. The nozzle according to claim 8 or 9, wherein the cover is set in an inclined position with respect to the axis of the nozzle. 11. The nozzle according to claim 8, wherein an operation piece is provided so as to extend at a free end of the nozzle cover. 12. The operation piece, which is substantially parallel to the axis of the nozzle when the nozzle cover is held in the open position, is provided so as to extend to the free end of the nozzle cover. Nozzle.