JPH0716052Y2 - Mounting structure for discharge element of liquid discharger - Google Patents

Description

TECHNICAL FIELD The present invention relates to a trigger type liquid discharger, and relates to a discharge element mounting structure that is easy and reliable to assemble.

2. Description of the Related Art Japanese Utility Model Publication No. 61-920 discloses a structure in which a spray head (discharging element) integrated with a trigger is attached to the tip of a spray cylinder (discharge cylinder).

Problems to be Solved by the Invention Unlike the above-mentioned conventional structure, in the case where the trigger and the spray head are separate structures, when the discharge element is configured to be crowned without being screwed to the discharge cylinder tip, In the process of assembling the discharge element to the body during the process of assembling the liquid discharger, it is difficult to accurately determine the exact position of the discharge element to be attached to the body, making it difficult to improve the assembly productivity. there were.

Means for Solving the Problems In the present invention, a hollow cavity is provided surrounded by an upper wall and left and right side walls of a body, and a hollow shaft-shaped discharge cylinder is provided in the cavity so as to project forward. A trigger-type liquid ejector in which the trigger and the ejection element are separate bodies, and a guide that reaches the front end of the body in the cavity on the lower central surface of the upper wall in parallel with the ejection cylinder. One rail is provided so as to project downward, and the upper and outer surfaces of the fitting cylinder of the discharge element, which is captively fixed to the tip of the discharge cylinder from the front, are used when fitting and fixing the discharge element to the discharge cylinder. The two guide pieces that sandwich the guide rail and guide the discharge element are provided so as to project in parallel to the axial direction of the fitting cylinder, so that the discharge element can accurately and smoothly move to the body. It is possible to ensure proper assembly.

Operation With the above-described configuration, when the discharge element is assembled to the body, the position where the fitting cylinder is attached to the discharge cylinder can be easily determined, and the subsequent assembly process can be performed quickly.

Embodiments The construction of the present invention will be described below with reference to the embodiments shown in the drawings.

As shown in FIG. 1, a hollow cavity 5 is provided surrounded by an upper wall 2, a left side wall 3 and a right side wall 4 of a body 1, and a hollow shaft-shaped discharge cylinder 6 is provided in the cavity 5 in the forward direction. A trigger type liquid ejector which is provided to project toward and retracts a piston body 8 by a trigger 7, and is shown in FIGS. 1 and 3 on the lower central surface of the upper wall 2 in the cavity 5. As shown in FIG. 1, a single guide rail 10 that extends parallel to the discharge cylinder 6 and reaches the front end 9 of the body 1 is provided on the tip of the discharge cylinder 6 separately from the trigger 7. Body discharge element 11
The fitting cylinder 12 is fixed from the front. The discharge element 11 has a shape as shown in FIGS. 4 to 8, a flange 13 is provided at the center, and the fitting cylinder 12 is provided behind the flange 13 so as to project therefrom. Guide pieces 14, 14 that sandwich the guide rail 10 and guide the discharge element 11 at the time of assembling to the body 1 are provided on the upper outer side surface of the protrusion 12 in parallel with the axial direction of the fitting cylinder 12. Has been done.

After press fitting the discharge cylinder 6 into the fitting cylinder 12, the fitting cylinder 12
In order to completely retain the above, the inner wall surface of the fitting cylinder 12 is provided with convex rings 15, 15 in a circumferential direction.

Therefore, during use as a post-assembly trigger type liquid ejector, the ejecting element 11 does not deviate from the ejecting cylinder 6 and the liquid does not leak.

A discharge port body fitting cylinder 19 into which a discharge port body 18 having a discharge port 17 is fitted is provided in front of the flange 13.

Advantageous Effects of Invention As described above, the body is provided with a cavity, and one guide rail projecting in the cavity and two guide pieces projecting on the upper outer surface of the fitting element fitting cylinder are provided. With a simple structure, it is possible to reduce the weight as much as possible while maintaining the predetermined strength of the liquid discharger.When mounting the discharge element on the discharge cylinder, first attach the guide rail on the body side to the discharge element side. Since the guide piece is sandwiched, the assembly position of the discharge element is determined, and the subsequent installation of the discharge element on the discharge cylinder and the assembly process are performed easily, quickly and surely, and the trigger is set as a whole. Various effects of being useful for improving the assembly productivity of the liquid ejector are obtained.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a discharge cylinder axis of a liquid discharger of an embodiment, FIG. 2 is a side view of the same body only, FIG. 3 is a front end side elevational view of the same body, and FIG. FIG. 5 is a plan view of the discharge element, FIG. 5 is a side view of the same, FIG. 6 is a bottom view of the same, FIG. 7 is an elevation view of the fitting cylinder side of the same, and FIG. 1: body, 2: upper wall, 3: left side wall, 4: right side wall, 5: cavity, 6: discharge cylinder, 7: trigger, 9: front end, 10: guide rail, 11: discharge element, 12: fitting Plywood, 14: Guide piece.

Claims (1)

[Scope of utility model registration request] 1. A hollow cavity is provided surrounded by an upper wall and both left and right side walls of a body, and a hollow shaft-shaped discharge cylinder is provided in the cavity so as to project toward the front. A trigger-type liquid ejector, which is a separate element from the element, wherein a guide rail that extends parallel to the ejection cylinder and reaches the front end of the body is provided on the lower surface of the center of the cavity so as to project downwardly. The guide rail is sandwiched between the upper and outer surfaces of the fitting cylinder of the discharge element that is fixed to the tip of the discharge cylinder from the front when the discharge element is fitted and fixed to the discharge cylinder. A structure for mounting a discharge element of a liquid discharger, wherein two guide pieces that can guide the element are provided so as to project in parallel with the axial direction of the fitting cylinder.