JPH0618611Y2 - Liquid applicator - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention includes a makeup tool such as maniurea and a writing instrument such as a marking pen, and a device for applying a liquid such as liquid cosmetics, ink, paint, and liquid medicine. Regarding

[Conventional technology]

As an example of this type of liquid applicator, there is a conventional example shown in FIG. This conventional example has a valve set at the front end opening.
(1) is attached and the rear end face serves as a knock part (2), and the inner cylinder (3) that stores liquid inside is housed inside the outer cylinder (4) so that it can move back and forth, and the outer cylinder (4) The tip (5) is screwed onto the outer surface of the front end of the to fix the brush (6) inside it, and the liquid introduction pipe (8) is fixed to the inner surface of the front end of the outer cylinder (4) and the rear end is fixed. Insert it into the inner cylinder (3) and make contact with the valve rod (9) of the valve set (1), join the liquid guide pipe (7) to the front end of the liquid introduction pipe (8), and write its front end. (6)
Insert the inside of the inner cylinder (3) and knock the inner cylinder (3) to move it forward so that the valve rod (9) is relatively retracted to open the valve and the liquid introduction pipe (8) from the inner cylinder (3). And a liquid guide pipe (7) for supplying liquid to the brush (6). And the liquid guide pipe (7) inserted inside the brush (6)
Is fixed with its front end positioned slightly forward of the center of the brush (6).

[Problems to be solved by the invention]

By the way, if a high viscosity liquid is used, the liquid guide pipe
Even if the liquid is supplied to approximately the center of the brush (6) by (7), there is a problem that it takes time until the liquid reaches the tip coating part of the brush (6) due to the capillary phenomenon and it takes time to start the coating work. It was
However, if the front end of the liquid guide pipe (7) is positioned in the vicinity of the tip of the brush (6), the liquid guide pipe (7) becomes a core and becomes an obstacle, and there is a problem that the coating work by the brush (6) is hindered. Therefore, an object of the present invention is to provide a liquid applicator that can quickly supply a liquid having a high viscosity to a predetermined position of an application member without causing any trouble in the application work.

[Means for solving problems]

According to the present invention, the inner cylinder (3) for storing the liquid therein is housed inside the outer cylinder (4) so as to be movable in the axial direction by a knocking operation, and is inserted into the front end opening of the inner cylinder (3) when knocking. A valve set including a valve rod (9) that retracts relative to the cylinder (3) to open the valve and a valve spring (24) that biases the valve rod (9) forward to close the valve. (1) is installed and the valve set above is installed in front of the inner cylinder (3).
Knock spring (20) having a smaller spring constant than the valve spring (24) of (1)
Is urged to the rear by the
The liquid introduction pipe (8) to be brought into contact with the valve rod (9) of (1) is arranged so as to be movable in the axial direction by a required distance, and the liquid guide pipe (7) is integrated with the liquid introduction pipe (8). Join the liquid guide pipe
The object of the present invention is to be achieved by providing a liquid applicator characterized in that (7) is inserted movably in the axial direction into an applicator member fixed to a tip shaft (5).

〔Example〕

An embodiment will be described below in detail with reference to FIGS. 1 to 3. Outer cylinder
(4) has the rear end opened, and the screw part (1
1) is provided, the inner wall (12) is projected on the inner surface of the rear end of the small diameter part (10), and the knock spring receiver (13) is fitted in the front end opening of the small diameter part (10) to form the small diameter part (10). The front shaft (5) is screwed to the threaded portion (11) of (1). For the front shaft (5), insert the latter half of the brush (6) into its inner hole, and fit the seal ring (14) inside to make the entire recess (1
The rear end flange (16) of the brush (6) is clamped and fixed by the inner wall surface of the front shaft (5) and the rear surface of the knock spring receiver (13).
The packing A (17) is sandwiched and fixed between them by abutting on the front surface thereof. The liquid introducing pipe (8) is provided with a flange portion (18) on the outer surface of the front end thereof, and the front end portion is provided between the knock spring receiver (13) and the inner wall (12) in the small diameter portion (10) of the outer cylinder (4). The inner wall (12) of the outer cylinder (4) is located at the front end of the large diameter portion (19) of the outer cylinder (4), and its rear part is axially movably attached to the outer cylinder (4). A knock spring (20) interposed between the front surface of the flange portion (18) at the front end and the knock spring receiver (13) urges it backward. The liquid guide pipe (7) is integrally bonded and fixed to the front end of the liquid introducing pipe (8), and the liquid guide pipe (7)
Penetrates through the center of the knock spring receiver (13), the packing A (17) and the seal ring (14), and inserts the front end of the knock spring receiver (13) into the brush (6) in an axially movable manner. Packing A (17)
Of course, it is slidably attached to the outer surface of the liquid guide pipe (7) while maintaining a sealed state. On the other hand, the inner cylinder (3) stores the liquid therein, the rear end surface is directly used as a knock portion (not shown), and the screw portion (21) is provided on the outer surface of the front end outer diameter reducing portion,
A valve set (1) consisting of a valve seat (22), a spring bearing (23), a valve rod (9) and a valve spring (24) is fitted on the inner surface of the front end opening, and the inner cylinder front axle ( 25) screwed on the inner wall surface and inner cylinder
Due to the front edge of (3), the front end collar (26) of the valve seat (22) and the spring bearing are
The front end flange portion (27) of (23) is clamped at the same time, and the packing B (28) is clamped and fixed between the front surface of the valve seat (22) and its inner wall surface. The valve spring (24) is the knock spring described above.
A coil spring having a larger spring constant than that of (20) is used, and a cylinder portion (29) is provided on the inner surface of the spring bearing (23) immediately behind the valve seat (22), and the valve stem (9) is provided. A skirt-shaped piston portion (30) having an open front end is slidably provided around the outer surface of the cylinder portion (29) in close contact with the cylinder portion (29). The inner cylinder (3) is housed movably in the axial direction inside the outer cylinder (4) with the rear end knock portion protruding rearward of the outer cylinder (4), and the front end of the inner cylinder front axle ( twenty five)
The rear end of the liquid introducing pipe (8) and the valve rod (9) where the rear end of the liquid introducing pipe (8) is inserted into the valve seat (22) through the through hole (31) provided in the center of ) Is abutting the front end. In addition, packing B (2
Of course, it is slidably adhered to the outer surface of the liquid introducing pipe (8) while maintaining a sealed state. When the inner cylinder (3) is not knocked, as shown in Fig. 1, the valve spring (24)
Causes the valve stem (9) to come into close contact with the valve seat (22) and close the valve.
Further, the liquid introduction pipe (8) is provided with a knock spring (20) so that the front end collar portion is formed.
(18) is in contact with the inner wall (12) of the outer cylinder (4), but in this state, the liquid guide pipe (7) does not protrude forward from the front end of the tip shaft (5). The length of the guide pipe (7) is set appropriately.

[Action]

The operation will be described below based on the above embodiment. First, when the rear end knock portion of the inner cylinder (3) is knocked forward from the state shown in FIG. 1, the valve set (1) is integrally advanced together with the inner cylinder (3),
Since the spring constant of the knock spring (20) that biases the liquid introducing pipe (8) backward is smaller than the spring constant of the valve spring (24), the valve rod
The rear end is pressed by (9) and the liquid introducing pipe (8) also moves forward while compressing the knock spring (20), and the front end flange portion (18) of the liquid introducing pipe (8) of the knock spring receiver (13). The rear end is brought into contact and the forward movement is stopped as shown in FIG. At this time, the liquid guide pipe (7) integrated with the liquid introduction pipe (8) is also moved forward inside the brush (6) and its front end is brushed.
Reach the prescribed position in (6). That is, the position reached by the front end of the liquid guide pipe (7) is determined by appropriately setting the distance between the front end of the liquid introduction pipe (8) and the rear end of the knock spring receiver (13). When the knock is continued, the inner cylinder (3) will move to the valve stem (9).
Against the inner cylinder (3) while moving forward, in other words, the valve rod (9) compresses the valve spring (24) and moves toward the valve seat (22).
After the valve rod (9) is separated from the valve rod (9), the piston portion (30) of the valve rod (9) moves rearward of the cylinder portion (29) of the spring bearing (23) to move to the third position.
In the state shown in the figure, the liquid in the inner cylinder (3) flows into the cylinder portion (29) of the spring receiver (23). Next, when the knock pressure is released, the valve rod (9) moves forward relative to the inner cylinder (3) by the restoring force of the valve spring (24), and the piston portion (30) of the valve rod (9) springs. received
The liquid is pushed out by sliding on the cylinder part (29) of (23) and discharged from the liquid introducing pipe (8) to the liquid guide pipe (7). At this time, since the knock spring (20) is still in the compressed state, the position of the front end of the liquid guide pipe (7) does not change and the liquid is supplied to the predetermined position of the brush (6). Next, the knock spring (20) is restored and the liquid introducing pipe (8) and the liquid guide pipe (7) are retracted to return to the state of FIG.

[Effect of device]

As described above, the present invention uses a high viscosity liquid because the guide pipe can advance the inside of the coating member to supply the liquid to a predetermined position of the coating member when the liquid is supplied to the coating member. Even in the case, there is an effect that the coating work can be started quickly. Further, when performing the coating operation, the guide pipe retracts inside the coating member, so that the coating operation is not hindered.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention.
FIG. 1 is a sectional view of an essential part before starting knocking, FIG. 2 is a sectional view of an essential part in the middle stage of knocking, and FIG. 3 is a sectional view of an essential part in the final stage of knocking. FIG. 4 is a sectional view showing a conventional example. (1)… Valve set, (2)… Knock part, (3)… Inner cylinder, (4)…
Outer cylinder, (5) ... Tip shaft, (6) ... Brush, (7) ... Liquid guide pipe, (8)
... Liquid introduction pipe, (9) ... Valve rod, (10) ... Small diameter part, (11) ... Thread part, (12) ... Inner wall, (13) ... Knock spring receiver, (14) ... Seal ring, (15) … Recessed part, (16)… Collar part, (17)… Packing A,
(18) ... Flange part, (19) ... Large diameter part, (20) ... Knock spring, (21) ...
Screw part, (22) ... Valve seat, (23) ... Spring receiver, (24) ... Valve spring,
(25) ... Inner cylinder front shaft, (26) ... Collar part, (27) ... Collar part, (28) ... Packing B, (29) ... Cylinder part, (30) ... Piston part, (3
1) ... through holes.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location B43K 8/02 B 8906-2C

Claims (1)

[Scope of utility model registration request] 1. An inner cylinder (3) for storing a liquid therein is housed inside an outer cylinder (4) so as to be movable in the axial direction by a knocking operation, and the inner cylinder (3) is knocked at a front end opening portion thereof. A valve provided with a valve rod (9) that retracts relative to the inner cylinder (3) to open the valve and a valve spring (24) that biases the valve rod (9) forward to close the valve. Install the set (1) and place the above valve set in front of the inner cylinder (3).
Knock spring (20) having a smaller spring constant than the valve spring (24) of (1)
Is urged to the rear by the
The liquid introduction pipe (8) to be brought into contact with the valve rod (9) of (1) is arranged so as to be movable in the axial direction by a required distance, and the liquid guide pipe (7) is integrated with the liquid introduction pipe (8). Join the liquid guide pipe
A liquid applicator, wherein (7) is axially movably inserted into an applicator member fixed to a tip shaft (5).