JP5630809B2 - Container with pump - Google Patents

Description

  The present invention relates to a container with a pump capable of discharging the contents of a container body by a pump action.

A pump equipped with a nozzle head is installed in the mouth and neck of the container body, and the contents of the container body can be discharged from the nozzle by opening the discharge valve such as a ball valve provided inside the pump by pressing the nozzle head. A container with a pump is known as the prior art.

JP 2003-292006 A

  However, in the prior art, after discharging, there is a possibility that the air sucked into the nozzle due to the negative pressure in the pump touches and deteriorates the contents of the container remaining in the flow path downstream from the discharge valve such as the nozzle. In addition, since a discharge valve such as a ball valve is used, the number of parts is large and the configuration has to be complicated.

The present invention has been made to solve the above-described problem, and an object of the present invention is to provide a pump-equipped container in which air does not touch residual contents after discharge and has a simple configuration.

In order to solve the above-mentioned problem, the present invention removes the contents of the container body from the nozzle hole 34a by pushing down the nozzle head 30 attached to the stem 22 standing upright from the inside of the cylinder suspended from the container body. In a container with a pump that can be discharged,
Forming a discharge chamber 35 which communicates to the nozzle hole 34a inside the top wall 31 of the nozzle head 30, causes opening the discharge port 36 which communicates to the stem 22 to the lower surface discharge chamber 35, the elasticity of the discharge valves combined A thin plate 37 having a portion thereof is attached to the lower surface of the discharge chamber 35 while leaving a part of the thin plate 37 as a discharge passage forming portion 38 extending in the front-rear direction reaching the nozzle hole 34a from the discharge port 36,
The lower surface of the discharge chamber 35 is bent convexly downward as viewed from the front over the nozzle hole 34a from the position where the discharge port 36 is formed , and the thin plate 37 is formed of a plastic film,
When the nozzle head 30 is pushed down, the contents of the container body flowing into the discharge chamber 35 through the discharge port 36 reverse the discharge path forming portion 38 of the thin plate 37 into a convexly curved shape. The thin plate 37 can be discharged from the hole 34a, and the thin plate 37 is returned to the original bent shape by the suction force and the elastic force of the thin plate in the pump, so that the thin plate 37 can be brought into close contact with the lower surface of the discharge chamber 35. A container with a pump.

Furthermore, the present invention, the nozzle head top wall 31 divided into two parts vertically, forming the head cover 40 for covering the nozzle head body 39 and the nozzle head body top, left and right sides of the nozzle head body 39 upper surface with erecting the lower engaging wall 41, said by hanging the upper engagement wall 43 from the right and left sides of the head cover portion top plate 42, detachably engaged with said upper engagement wall 43 to the lower engaging wall 41 outer surface It is characterized by being combined.

Furthermore, the present invention is characterized by including a stopper member 50 that can engage with the nozzle head 30 to prevent the nozzle head from descending.

Furthermore, the present invention is characterized in that the thin plate 37 is bonded or welded to the lower surface of the discharge chamber 35 .

  In the present invention, since the thin plate attached to the lower surface of the discharge chamber is provided so that it can be brought into close contact with the lower surface of the discharge chamber 35 by negative pressure in the pump, the flow path of the container contents is closed by the thin plate after discharge. Therefore, the contents of the container body are promptly returned to the container body, and air is not sucked into the flow path, so that the deterioration of the container body contents is prevented and the contents are fully protected. Can be.

In addition, the thin plate attached to the lower surface of the discharge chamber serves to protect the contents of the container body and also functions as a discharge valve. Simplification can be achieved.
Furthermore, according to the present invention, since the top wall of the nozzle head is divided into two parts, the external shape of the nozzle head can be changed by simply replacing the head cover portion, and the thin plate can be easily assembled to the nozzle head.

It is a partial cross section figure which shows the principal part of the container with a pump which concerns on this invention. It is an AA arrow directional view of FIG. (a) It is a top view of FIG. (b) It is a side view of FIG. (a) It is a top view of other embodiment. (b) It is a side view similarly. (a) It is a top view of other embodiment. (b) It is a side view similarly. It is a perspective view of the container with a pump of the state which removed the head cover part.

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

Reference numeral 1 denotes a container body that erects the mouth and neck from the upper end of the trunk through the shoulder.

  Reference numeral 10 denotes a mounting cylinder, which erects the guide cylinder 12 from the upper surface of the peripheral wall 11 screwed to the container body neck of the container through an inward flange.

  Reference numeral 20 denotes a pump, which raises the stem 22 from a cylinder 21 hanging down into the container body 1 through a piston (not shown) in an upwardly biased state, and has the nozzle head 30 fitted to the outer surface of the upper end of the stem 22. .

  The nozzle head 30 hangs the inner and outer double cylinders 32 and 33 from the lower surface of the top wall 31 to fit the inner cylinder 32 to the outer surface of the upper end of the stem 22 and loosely fit the lower end of the outer cylinder 33 to the upper end outer surface of the guide cylinder 12. Furthermore, the nozzle 34 communicates with the stem 22 from the front portion of the top wall 31 and protrudes forward.

A discharge chamber 35 communicating with the nozzle hole 34a is formed in the top wall 31 of the nozzle head 30 so as to extend in the front-rear direction, and a discharge port 36 communicating with the stem 22 is opened at the lower surface of the middle portion of the discharge chamber 35 in the front-rear direction. At the same time, the other part (attachment part 37 a) of the thin plate 37 is attached to the lower surface of the discharge chamber 35 while leaving a part of the thin plate 37 as the discharge path forming part 38. The attachment is performed by adhesion or welding.

The discharge path forming portion 38 is formed in a length that reaches from the discharge port 36 to the nozzle hole 34 a and is not attached to the lower surface of the discharge chamber 35, so that the container body contents flow into the discharge chamber 35 from the discharge port 36. The discharge path forming unit 38 bulges upward to form a flow path for the contents, and allows the contents to be discharged from the nozzle holes 34a. Therefore, the left and right widths of the discharge path forming path 38 are formed to be approximately equal to or slightly larger than the diameter of the discharge port 36, but the width can be changed depending on the viscosity of the container body contents and the dispensing form. .

The shape of the lower surface of the discharge chamber 35 is a downwardly convex curve, that is, a dish shape . That use reversible plastic film curved convex upward as the material of the thin 37.

The top wall 31 of the nozzle head 30 in which the discharge chamber 35 is formed is divided into two parts, and is formed into a nozzle head main body 39 and a head cover portion 40 that covers the upper surface of the nozzle head main body. The lower engagement wall 41 is erected from both sides, the upper engagement wall 43 is suspended from the left and right sides of the top plate 42 of the head cover portion 40, and the auxiliary wall 44 is suspended inside the upper engagement walls 43. The lower engagement wall 41 is detachably fitted between the auxiliary wall 44 and the upper engagement wall 43.

Next, the operation of this embodiment will be described.
At the time of assembly, the head cover portion 40 is removed and the thin plate 37 is attached to the lower surface of the discharge chamber 35 by adhesion or welding while leaving a part thereof, that is, the discharge path forming portion 38. In order to use, the nozzle head 30 may be pushed down after the head cover portion 40 is attached. Then, the container body content flows into the discharge chamber 35 from the stem 22 through the discharge port 36, and the discharge path forming portion 38 is used. the discharged from the nozzle holes 34a by causing inverted upward.

  When the nozzle head 30 rises after discharge, the inside of the pump 20 becomes negative pressure, so that the thin plate 37 is restored to its original shape by the suction force and the elastic force of the thin plate 37 itself, and closely contacts the lower surface of the discharge chamber 35. As a result, the container contents remaining in the nozzle head 30 are returned to the container body from the discharge port 36 and the suction of outside air into the nozzle head 30 is prevented, thereby preventing deterioration of the container contents. Is done.

  Reference numeral 50 denotes a stopper member, which is formed of a U-shaped main body when viewed from above and a knob 51 protruding rearward from the main body. The stopper member 50 is detachably fitted to the guide tube 12 and engages with the lower end of the nozzle head 30. Thus, the nozzle head 30 is provided so as to prevent unnecessary lowering.

  The stopper member 50 may be fitted between the lower end of the outer cylinder 33 of the nozzle head 30 and the top of the mounting cylinder 10 as shown in FIG. 4, or the stopper member 50 is fitted into the nozzle 34 as shown in FIG. By combining, the lowering of the nozzle 34 may be prevented.

  The head cover portion 40 can be replaced with the nozzle head main body as described above. Therefore, the external shape of the nozzle head can be changed by replacing the head cover portion. For example, FIG. 3 and FIG. The shape can be made different.

  INDUSTRIAL APPLICABILITY The present invention can be used in the field of a container with a pump that can discharge the contents of a container body by pushing down a nozzle head.

20 Pump 22 Stem 30 Nozzle head 31 Nozzle head top wall 34 Nozzle 35 Discharge chamber 36 Discharge port 37 Thin plate 37a Adhering portion 38 Discharge path forming portion 39 Nozzle head body 40 Head cover portion 41 Lower engagement wall 43 Upper engagement wall 50 Stopper member

Claims (4)

Pump provided so that the contents of the container body can be discharged from the nozzle hole (34a) by pressing down the nozzle head (30) attached to the stem (22) standing upright from the inside of the cylinder suspended from the inside of the container body In the attached container,
A discharge chamber (35) communicating with the nozzle hole (34a) is formed inside the top wall (31) of the nozzle head (30), and a discharge chamber communicating with the stem (22) is formed on the lower surface of the discharge chamber (35). The outlet (36) is opened, and the elastic thin plate (37) also serving as a discharge valve has a discharge passage forming portion (38) that is long in the front-rear direction, part of which extends from the discharge port (36) to the nozzle hole (34a). And attached to the lower surface of the discharge chamber (35),
The lower surface of the discharge chamber (35) is bent from the discharge port (36) formation position to the nozzle hole (34a) so as to protrude downward as viewed from the front , and the thin plate (37) is formed of a plastic film,
When the nozzle head (30) is pushed down, the container body contents flowing into the discharge chamber (35) through the discharge port (36) move up the discharge path forming portion (38) of the thin plate (37). The thin plate (37) can be discharged from the nozzle hole (34a) by being inverted into a convex curve, and the thin plate (37) is bent downward by the suction force and the elastic force of the thin plate in the pump. A container with a pump, which is provided so as to be able to return to the lower surface of the discharge chamber (35).   The nozzle head top wall (31) is vertically divided into two parts, a nozzle head main body (39) and a head cover part (40) covering the nozzle head main body upper surface, and the nozzle head main body (39) upper surface is formed. The lower engagement wall (41) is erected from both the left and right sides, and the upper engagement wall (43) is suspended from the left and right sides of the head cover top plate (42), and the upper engagement wall (43) is lowered to the lower side. The container with a pump according to claim 1, wherein the container is detachably fitted to the outer surface of the engaging wall (41).   The container with a pump according to claim 1 or 2, further comprising a stopper member (50) capable of engaging with the nozzle head (30) and preventing the nozzle head from descending. .   The container with a pump according to any one of claims 1 to 3, wherein the thin plate (37) is adhered or welded to the lower surface of the discharge chamber (35).