JP2010274228A - Discharge device with lock mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a discharge device with a lock mechanism, which can utilize a lock member for an improvement in discharge operability. <P>SOLUTION: In the discharge device with the lock mechanism, the lock member 60 is pivoted on a supporting base 40 rotatably to a front-back direction, and the lock member is engaged with an operating lever 50, and is provided so as to be able to take a lock position blocking a depression of a stem 20 by the operating lever and an unlock position allowing the depression of the stem by the operating lever by turning from the lock position backward and disengaging from the operating lever. The lock member 60 projects backward at the unlock position and is provided such that a hand at the time of operating the operating lever contact from above. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a discharge device with a lock mechanism for locking an operation lever.

In order to prevent inadvertent depression of a discharge operation lever, a discharge device provided with a lock member is known as a prior art.

Japanese Patent No. 4079261

However, the prior art is the unlocking position of the lock member that allows the operation lever to rotate, and the lock member is located on the side surface of the apparatus main body and does not protrude to the rear of the apparatus main body. Therefore, even when the discharge device is small and difficult to perform the discharge operation, there is a problem that the operation cannot be facilitated using the lock member.
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a discharge device with a lock mechanism that can use a lock member for improving discharge operability.

In order to solve the above-described problems, the present invention is configured such that a base cylinder 13 is erected from the top wall of the mounting cylinder 10 to the container body neck 2 and the discharge stem 20 can be moved up and down from within the base cylinder. The nozzle member 30 is protruded forward from the stem, a support base 40 is provided on the top wall of the mounting cylinder, and an operation lever 50 is pivotally attached to the support base so as to be pivotable in the front-rear direction. The operation lever is engaged with the stem so as to be able to be pushed down, and the lock member 60 is pivotally attached to the support base 40 so as to be pivotable in the front-rear direction. The lock member is engaged with the operation lever, and A lock position that prevents the stem from being pushed down by the operating lever, and an unlocking position that allows the stem to be pushed down by rotating backward from the locked position and disengaging from the operating lever. Discharge device with lock mechanism In,
The lock member 60 protrudes rearward at the unlock position, and is provided so as to be able to come into contact with the hand when operating the operation lever from above.

Further, in the present invention, the support base 40 is formed by a pair of left and right support plates 41 protruding rearward from the rear portion of the base tube 13, and an engagement notch 42 is provided at the upper end of the support plate.
The lock member 60 includes a pair of lock plates 61 that are pivotally supported by the respective support plates 41 so as to be rotatable in the front-rear direction, and engagement protrusions 64 formed on the lock plates.
The lock plate 61 is provided so that it can be placed and engaged with the upper end of the base tube 13 at the lock position, and the engagement protrusion 64 can be engaged with the engagement notch 42 at the unlock position. Features.

Further, according to the present invention, the engagement notch portion is formed of an inlet portion 70a that is open upward and a contact portion 70b that is a long hole that is formed long backward, and the inlet portion 70a and the contact portion 70b. The boundary portion 70c has a size smaller than the diameter of the engagement protrusion 64 of the lock plate 61 and is formed so as to be compulsorily expanded by the engagement protrusion 64.
Further, a shaft hole 63 into which a shaft rod 62 for pivotally supporting the lock plate 61 to the support plate 41 is inserted is formed as a long long hole to the rear.
In the unlocked position, the shaft rod 62 is provided so as to be able to fit into the abutting portion 70b via the inlet portion 70a of the engagement notch portion, and further, the lock member is pulled rearward to engage with the shaft rod 62. The mating protrusion 64 is provided so as to be able to be moved to the rear end of the long hole into which each is fitted.

Further, according to the present invention, the lock member 60 includes a downward U-shaped operation portion 65 straddling the operation lever 50 at the lock position, and the operation portion is connected to the lock plate 61. Features.

According to the present invention, the lock member protrudes rearward at the unlock position and is provided so as to be able to come into contact with the hand when the operation lever is operated from above, so that the operability during the discharge operation is improved.
Further, according to the present invention, the engagement notch has a size smaller than the diameter of the engagement protrusion of the lock plate and can be forcibly expanded, and a contact portion formed by a long hole formed long rearward. Since the shaft hole into which the shaft rod for pivotally supporting the lock plate to the support plate is formed as a long elongated hole to the rear, the lock member does not easily come off the unlock position, and therefore the lock member There will be no hindrance to use for improving the operability.

It is a side view in the lock position of the discharge device concerning the present invention. FIG. 2 is a half sectional front view of FIG. 1. It is sectional drawing of FIG. FIG. 2 is a view corresponding to FIG. 1 illustrating an unlock position. It is an operation explanatory view. It is the FIG. 1 equivalent view which shows other embodiment. FIG. 5 is a view corresponding to FIG. 4 showing the unlock position.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  In FIG. 1, reference numeral 1 denotes a container body, and the mouth-and-neck portion 2 stands up through a shoulder portion.

  Reference numeral 10 denotes a mounting cylinder, which screws the peripheral wall 11 to the outer surface of the container body neck portion 2 and erects the base cylinder 13 whose upper diameter is reduced from the inner periphery of the inwardly flanged top wall 12 on the upper surface of the peripheral wall 11. .

  Reference numeral 20 denotes a discharge stem, which stands in an upwardly biased state through a base tube 13 from a piston fitted into a cylinder (not shown) provided in the container body 1.

  Reference numeral 30 denotes a nozzle member, which protrudes forward by fitting the rear portion to the upper end of the stem 20.

  Reference numeral 40 denotes a support base. A pair of left and right support plates 41, 41, which are substantially parallel to each other, are projected rearward from the rear portion of the base tube 13, and the lower ends of these support plates are integrally connected to the top wall of the base tube 13, A space between the rear ends of the support plates is closed by a rear wall, and an engagement notch 42 is formed at the middle in the front-rear direction at the upper ends of both support plates.

  The engagement notch portion 42 is formed of an inlet portion 42a that opens upward and a contact portion 42b. The dimension in the front-rear direction at the boundary portion 42c between the inlet portion and the contact portion is the diameter of the engagement protrusion portion 64 described later. The engagement protrusion 64 is provided so that the boundary 42c can be forcibly expanded when the engagement protrusion 64 is disengaged from the engagement notch 42.

  Reference numeral 50 denotes an operating lever, which is formed in a substantially L-shape that is downward when viewed from the left and right, and has a cross-sectional shape that is U-shaped downward. An opening 52 for inserting the nozzle member 30 is formed in the upper portion of the working portion 51, and the rear end of the horizontal portion forming the other portion of the L shape is pivotally attached to the upper end of the rear portion of the support base 40. Further, a locking protrusion 53 that can be engaged with a lock member described later is provided on the inner surface of the L-shaped horizontal portion in the front-rear direction intermediate portion.

  Further, a downward U-shaped projection (not shown) is provided on the inner surface of the L-shaped horizontal portion, and the projection engages with a projection (not shown) formed on the stem 20 when the operation lever 50 is discharged. Thus, the stem 20 is provided so as to be pressed down.

  Reference numeral 60 denotes a lock member that rotatably supports a pair of left and right lock plates 61 on the upper end of the front portion of the support base 40. The pair of lock plates 61 are each formed in a bent shape in which the lower edge front portion can be placed on the upper end of the base tube 13 and the upper edge is convex upward in the locked position. The shaft rods 62, 62 projecting downward from the lower end inner surface of the extension portion are rotatably fitted into shaft holes 63, 63 formed in the upper end portions of the front portions of the support plates 41, 41. ing. Further, an engagement protrusion 64 that can be engaged with the engagement notch 42 is provided on the rear inner surface of the pair of lock plates 61.

The lock member 60 also includes a downward U-shaped operation portion 65 that straddles the operation lever 50 at the lock position, and the narrow portion at the lower portion of the operation portion is integrally connected to the outer surfaces of the pair of lock plates.

  6 and 7 show another embodiment, which is different from the first embodiment in the engagement notch portion. Here, the engagement notch is denoted by reference numeral 70. The engagement notch portion 70 is formed of an inlet portion 70a that opens upward and a contact portion 70b. The contact portion 70b is formed in a long hole in the front and rear direction, and at the boundary portion 70c between the inlet portion and the contact portion. The dimension in the front-rear direction is formed to be slightly smaller than the diameter of the engaging protrusion 64. When the engaging protrusion 64 is disengaged from the engaging notch 42, the engaging protrusion 64 has its boundary. The part 70c is provided so as to be able to be forcibly expanded. In addition, as shown also in FIG. 6, it is preferable to provide the protrusion 70d which the engagement protrusion 64 can forcibly get over at the intermediate part of the front-back direction of the lower edge of the contact part 70b. Further, a shaft hole 63 into which a shaft bar 62 for pivotally supporting the lock plate 61 to the support plate 41 is inserted is formed as a long hole extending backward. Since other configurations are the same as those of the first embodiment, description thereof is omitted.

Next, the operation will be described.
1 to 3 show the locked state. The lock plate 61 is placed on the upper end of the base tube 13, and the lower end of the locking protrusion 53 of the operating lever 50 is the curved upper edge of the lock plate 61. Therefore, even if the gripping portion 51 of the operation lever 50 is pulled backward, the operation lever cannot be rotated, and therefore the stem cannot be pushed down. It cannot be discharged.

  In order to discharge, the operation part 65 of the lock member 60 may be rotated rearward, whereby the lock plate 61 is rotated rearward and the engagement protrusion 64 is engaged with the engagement notch 42. To do. This state is the unlocked position of the operation lever 50. At this position, the operation lever 50 protrudes rearward from the support base 40 as shown in FIG. 4, and therefore, as shown in FIG. A hand can be applied to the operation lever 50 and the discharge operation can be facilitated.

  In the case of FIGS. 6 and 7, the lock member 60 is rotated backward to engage the engaging protrusion 64 with the abutting portion 70b of the engagement notch 70, and then the operation lever 50 is further pulled backward. Since the shaft rod 62 moves to the rear end of the shaft hole 63 and the engaging projection 64 moves to the rear end of the abutting portion 70b made of a long hole, the engaging projection 64 is difficult to come off from the abutting portion 70b. .

  The present invention can be used in the field of a discharge device for locking an operation lever.

DESCRIPTION OF SYMBOLS 1 Container body 2 Mouth neck part 10 Mounting cylinder 13 Base cylinder 30 Nozzle member 40 Support stand 41 Support plate 42 Engagement notch part 42a Entrance part 42b Contact part 42c Boundary part 50 Control lever 53 Locking protrusion 60 Lock member 61 Lock board 62 shaft rod 62, 62
Shaft hole 63
70 Engagement notch 70a Inlet 70b Contact part

Claims (4)

A base tube 13 is erected from the top wall of the mounting tube 10 to the container body neck portion 2, and a discharge stem 20 is erected up and down from the inside of the base tube to move the nozzle member 30 forward from the stem. In addition to projecting, a support base 40 is provided on the top wall of the mounting cylinder, and an operation lever 50 is pivotally attached to the support base so as to be pivotable in the front-rear direction, and the operation lever can be pushed down to the stem. Further, a lock member 60 is pivotally attached to the support base 40 so as to be pivotable in the front-rear direction, and the lock member is engaged with the operation lever to prevent the stem from being pushed down by the operation lever. And a discharge device with a lock mechanism provided so as to be able to take an unlock position allowing rotation of the stem of the operation lever by rotating backward from the lock position and disengaging from the operation lever.
The discharge device with a lock mechanism, wherein the lock member 60 protrudes rearward at the unlocked position so as to be able to come into contact with a hand when the operation lever is operated. The support base 40 is formed by a pair of left and right support plates 41 protruding rearward from the rear portion of the base tube 13, and an engagement notch 42 is provided at the upper end of the support plate,
The lock member 60 includes a pair of lock plates 61 that are pivotally supported by the respective support plates 41 so as to be rotatable in the front-rear direction, and engagement protrusions 64 formed on the lock plates.
The lock plate 61 is provided so that it can be placed and engaged with the upper end of the base tube 13 at the lock position, and the engagement protrusion 64 can be engaged with the engagement notch 42 at the unlock position. A discharge device with a lock mechanism. The engagement notch portion is formed of an inlet portion 70a that is open upward and a contact portion 70b that is a long hole that is long in the rear, and a boundary portion 70c between the inlet portion 70a and the contact portion 70b is The lock plate 61 has a size smaller than the diameter of the engaging protrusion 64 and is capable of being forcibly expanded by the engaging protrusion 64.
Further, a shaft hole 63 into which a shaft rod 62 for pivotally supporting the lock plate 61 to the support plate 41 is inserted is formed as a long long hole to the rear.
In the unlocked position, the shaft rod 62 is provided so as to be able to fit into the abutting portion 70b via the inlet portion 70a of the engagement notch portion, and further, the lock member is pulled rearward to engage with the shaft rod 62. 3. The discharge device with a lock mechanism according to claim 2, wherein the abutment portion is provided so as to be able to move to the rear end of the long hole in which each is fitted. The lock member (60) includes a downward U-shaped operation portion (65) straddling the operation lever (50) at the lock position, and the operation portion is connected to the lock plate (61). The discharge device with a lock mechanism as described.

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