JPH0112989B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" This invention relates to a method of assembling a reed valve.

``Prior art and problems to be solved by the invention'' Conventional reed valves have a fixed screw inserted from above the stopper into a screw insertion hole drilled in a curved stopper and a flat reed, and a screw inserted into the support. The lead and stopper are fastened and fixed to the support by screwing them into the holes.

Therefore, when assembling a conventional reed valve, the reed and stopper must be stacked on the surface of the support and the fixing screw must be tightened from above while holding both in position. A jig is required to position and hold the rear ends of the stoppers overlapped and to open and take out the assembled reed valve after tightening the screws, and the structure and operation of this jig is complex and requires precision. It is not easy to maintain, and since the jig and the screw tightening portion cross each other, it is also difficult to tighten the screws.

"Means for Solving the Problems" In order to solve the above-mentioned conventional problems, the present invention has the following features:
By positioning and holding each member on a jig with the reed valve upside down, and tightening screws from the back side of the support, the support, reed, and stopper can be accurately positioned and held using a simple jig during assembly. The reed valve can be easily set in the assembled state using the screws, and the fixing screw can be easily tightened and fixed from the back side of the support where there is nothing crossing the screw tightening part, and the reed valve can be easily installed from the jig after assembly. This paper proposes a rational method for assembling a reed valve that can be removed.

``Example'' Below, an example of the present invention shown in the drawings will be described. Insertion holes 4 and 5 for fixing screws 3 are bored in predetermined positions of a support 1 and a lead 2, respectively, and fixing screws 3 are fixed in a predetermined position of a stopper 6. A screw hole 7 into which the screw 3 is screwed is bored.

Figures 2 and 3 show support 1 and lead 2 above.
and an example of the assembled state of the stopper 6 and the assembly jig 8. The assembly jig 8 includes the support 1,
A recessed fitting portion 9 is provided to fit and hold the lead 2 and the stopper 6 with their front surfaces facing downward, and the rear end and tip portion of the stopper 6 are engaged with the inner peripheral surface of the recessed fitting portion 9. The engaging step portions 11 and 11' that accurately position and hold also engage at least the front edge of the lead 2 whose rear end overlaps the rear end of the stopper 6 on the upper side thereof, thereby accurately positioning and holding it. Engagement step portions 12 are further formed around their upper sides with engagement step portions 13 that engage support 1 stacked on lead 2 to accurately position and hold it.

When assembling a reed valve using this assembly jig 8, the stopper 6, reed 2, and support 1 are loaded into the recessed fitting portion 9 in order of decreasing component size.

That is, first, the stopper 6 is positioned and held with its surface facing downward and its front and rear ends are engaged with the engagement steps 11 and 11', and then the rear end of the lead 2 is placed on the rear end of the stopper 6. At the same time, the front edge and side edges thereof are overlapped with the engagement step 12, and the support 1 with its surface facing downward is engaged with the engagement step 13 and placed on the lead 2.

As a result, the stopper 6, the lead 2, and the support 1 can be accurately positioned and easily held together in the assembled state by simply engaging each engagement step of the assembly jig 8 from above. This makes it extremely easy to assemble and set the parts.

Next, in this state, fix the screw 3 with the screw tightener.
into the insertion holes 4 and 5 from the back side of the support 1, screw it into the screw hole 7 of the stopper 6, and then attach the lead 2.
The assembly is completed by tightening and fixing the stopper 6 to the support 1.

This allows the fixing screw 3 to be passed through the series of insertion holes 4 and 5 of the support 1 and the lead 2 from the upper space where there are no obstructions, and the threaded hole 7 of the stopper 6 to be inserted into the screw hole 7 of the stopper 6.
Since it can be screwed into the parts, the screw tightening operation is extremely easy, and it is possible to automate the process from setting the parts to tightening the screws.

In addition, since the assembled reed valve can be taken out upward from the assembly jig 8, the assembly jig 8 has a simple structure without requiring any mechanical moving parts or power to take out the assembled reed valve. It can be configured as follows, and it can be manufactured with high precision through simple molding process, making it possible to reduce equipment costs and obtain a high-precision, inexpensive product.

"Effects of the Invention" As described above, according to the present invention, the front and rear ends of the stopper with the surface side facing downward are engaged with the engagement steps provided on the assembly jig for positioning and holding the front and rear stoppers, and the stopper is engaging at least the distal end of the lead with an engagement step for positioning and holding the lead provided above the engagement step for positioning and holding;
The rear end of this lead is stacked on the rear end of the stopper, and the support with the surface side facing downward is engaged with the engagement step for positioning and holding the support provided above the engagement step for positioning and holding the lead. The lead and stopper can be attached by stacking them on top of the lead, inserting the fixing screw from the back side of the support into the screw insertion hole drilled in the support, and screwing it into the screw hole drilled in the stopper through the through hole drilled in the lead. Because the support, lead, and stopper are fastened and fixed to the support, the support, lead, and stopper can be accurately positioned and held using a simple jig during assembly, and can be easily set in the assembled state, and there are no objects that cross the screws that may obstruct the tightening part. The fixing screw can be easily tightened and fixed from the back side of the support, and it is possible to easily automate the process from setting the parts to tightening the screws.

Further, the reed valve can be easily taken out from the jig as it is after assembly, which is efficient, and the structure of the jig can be extremely simplified.

Furthermore, it is easier to thread a screw hole with a stopper than with a support.

[Brief explanation of drawings]

Fig. 1 is a longitudinal side view of a reed valve assembled according to the present invention, Fig. 2 is an exploded perspective view showing the procedure of the assembly method of the present invention, and Fig. 3 is a longitudinal side view showing the assembled state of the reed valve according to the method of the present invention. It is a diagram. 1...Support, 2...Lead, 3...Fixing screw, 4, 5...Screw insertion hole, 6...Stopper,
7...screw hole, 8...assembly jig, 9...recessed fitting part,
11, 11', 12, 13... Engagement stepped portions.

Claims (1)

[Claims] 1. Engage the front and rear ends of the stopper with the surface side facing downward to the engagement steps for positioning and holding the front and rear stoppers provided on the assembly jig, and At least the distal end of the lead is engaged with the engagement step for positioning and holding the lead, and the rear end of the lead is overlapped with the rear end of the stopper, and is provided above the engagement step for positioning and holding the lead. engaging a support with its surface side facing downward in an engagement stepped portion for positioning and holding the support, stacking it on the lead, and inserting a fixing screw from the back side of the support into a screw insertion hole drilled in the support; A method for assembling a reed valve, characterized in that the reed and stopper are fastened and fixed to the support by screwing the reed through a through hole formed in the reed and into a screw hole formed in the stopper.