JPH01227879A - Cord clamp tightening device of compressor - Google Patents

Abstract

PURPOSE:To simplify the process of and ensure the tightness of a cord clamped between the major cord clamping body and a separate cord clamping body by forming a plurarity of mating parts on each of the major body and the separate body. CONSTITUTION:A tightening device consists of a cord clamping body 21 having U-shaped recess parts 8 fastened to the bracket of a compressor body, a separate cord clamping body 24 plugged into said body 21 and a cord clamping screw 13 screwed up on said separate body 24. In this case the major body 21 has grooves 22 formed in the reception direction and the separate body 24 has a guide projections 25 mated with said grooves 22. The major body 21 has an insertion stopping projection 23 and the separate body 24 has a recess part 26 mated with said projection 23. After cords are put in the U-shaped recess parts 8, the separate body 24 is inserted into the major body 21 and tightened with screws 13, whereby fastening the cords exactly.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cord clamp fixing device used for fixing an electrical component cord of a compressor used in a refrigeration system.

2. Description of the Related Art In recent years, cord clamp fixing devices for compressors in refrigeration systems have tended to be smaller and simpler.

A conventional electrical component cord fixing device is shown in FIG.

1 is a compressor main body, 2 is a bracket fixed to the outer surface of the compressor main body 1, 3 is a fixing screw hole provided in the bracket 2, and 4 is a hole for fixing a cord (not shown). This is the cord clamp body.

The cord clamp body 4 has an engaging groove 6. Screw hole 6, through hole 7. A substantially U-shaped bag portion 8 is provided.

9 is a separate cord clamp that is screwed and fixed to the cord clamp main body 4, and has a screw hole 10. Engagement protrusion 11° through hole 12
．． It has a cord clamp screw 13. Reference numeral 14 denotes a screw that passes through the through hole 12 provided in the cord clamp separate body 9 and is screwed into the screw hole 6 provided in the cord clamp body 4. Reference numeral 16 designates a screw that passes through the through hole 7 of the cord clamp body 4 and is screwed into the fixing screw hole 3 provided in the bracket 2, and 16 designates a glass terminal.

In the above configuration, first, in order to fix the cord clamp body 4 to the bracket 2 disposed on the compressor body 1, the fixing screw 14 is inserted into the through hole 7 of the cord clamp body 4, and the bracket 2 is fixed. It is fixed by screwing it into the fixing screw hole 3. Next, in order to fix the cord (not shown), screw the cord clamp screw 13 into the cord clamp separate body 9, and insert the engaging protrusion 11 of the cord clamp separate body 9 and the retaining groove 6 of the cord clamp body 4. The cord (Fig. (not shown), and the cord clamp screw 13 is screwed and fixed.

Problems to be Solved by the Invention However, with the above structure, when the cord is screwed and fixed, both ends of the engaging protrusion of the separate cord clamp warp, making it impossible to secure the cord sufficiently. This has a serious safety drawback as live parts such as glass terminals are exposed.

In view of the above problems, the present invention provides a cord clamp fixing device for a compressor that can securely fix the cord clamp and improve workability.

Means for Solving the Problems In order to solve the above problems, the present invention provides a bracket fixed to a compressor main body, a cord clamp main body screwed to the bracket and having a substantially U-shaped bag portion, and a cord clamp main body having a substantially U-shaped bag portion; It consists of a separate cord clamp that is inserted and fixed into the cord clamp body, and a cord clamp screw that is screwed into the separate cord clamp body, and the cord clamp body has a groove in the insertion direction, and the cord clamp The separate body has a guide protrusion in the insertion direction, the cord clamp main body has an insertion locking protrusion, and the separate cord clamp body has a recess corresponding to the insertion locking protrusion. It is a structure.

According to the above-described configuration, the present invention inserts and holds the guide protrusion of the separate cord clamp body into the groove in the insertion direction of the cord clamp body, and the insertion locking protrusion of the cord clamp body and the insertion of the separate cord clamp body. The recessed part corresponding to the locking protrusion eliminates warping and ensures reliable fixation.

EXAMPLE Hereinafter, a cord clamp fixing device according to an example of the present invention will be described with reference to the drawings. Note that parts that are the same as those of the conventional product will be described using the same reference numerals, and parts that are the same in structure and operation will be omitted.

FIG. 1 is an exploded perspective view showing a cord clamp fixing device according to an embodiment of the present invention, FIG. 2 is an enlarged plan view showing the cord clamp fixing device of the present invention before cord tightening, and FIG. FIG. 3 is an enlarged plan view of the cord clamp fixing device of the present invention after the cord is tightened.

21 is the cord clamp body for fixing the cord, 22
23 is an insertion locking projection provided on the cord clamp body 21, and 24 is a separate cord clamp body that is inserted into and fixed to the cord clamp body 21. , 26 is a guide protrusion in the insertion direction provided on the separate cord clamp body 24, 26 is a recessed portion corresponding to the insertion locking protrusion 23 provided on the separate cord clamp body 24, and 27 cords. .

In the above configuration, the cord clamp body 21 is inserted into the fixing screw hole 3 of the bracket 2 disposed on the compressor body 1.
is fixed with the fixing screw 14. Next, the cord clamp screw 13 is screwed into the screw hole 10 of the cord clamp separate body 24 in advance. In order to fix the cord 27, the cord 27 is interposed in the approximately U-shaped bag portion 8 of the cord clamp body 21, and the guide protrusion 26 of the cord clamp separate body 24
Insert the insertion and locking protrusions 23 of the cord clamp body 21 into the grooves 22 of the cord clamp body 21 into the recessed portions 26 of the separate cord clamp body 24, respectively.

At this time, before tightening the cord clamp screw 13, there are gaps a and b.
After tightening the cord clamp screw 13, a reaction force is generated at the same time as force is applied to the cord 27, so the gap a
, b move to the gaps a' and b', respectively, so that the insertion locking protrusion 23 of the cord clamp main body 21 is fitted into the recessed part 26 of the separate cord clamp body 24, thereby preventing removal in the opposite direction to the insertion direction. It can be prevented.

Therefore, both ends of the separate cord clamp body do not warp, the cord can be sufficiently fixed, and furthermore, by omitting fixing screws for fixing the cord clamp main body and the separate body, rationalization and workability can be improved.

Effects of the Invention As described above, the present invention provides a bracket fixed to a compressor main body, a cord clamp main body screwed to the bracket and having a substantially U-shaped bag portion, and a cord clamp main body inserted and fixed to the cord clamp main body. The cord clamp body has a groove in the insertion direction, and the cord clamp body has a groove in the insertion direction. In addition to having a guide protrusion, the cord clamp main body has an insertion locking projection, and the cord clamp separate body is provided with a recess corresponding to the insertion locking projection, so that the cord can be securely fixed. This eliminates the problem of exposing live parts. Further, there is no need for screws for fixing the cord clamp main body and a separate body, making it possible to reduce costs and improve workability.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing a cord clamp fixing device according to an embodiment of the present invention, FIG. 2 is an enlarged plan view of the cord clamp of the present invention before the cord is tightened, and FIG. 3 is a cord clamp of the present invention. FIG. 4 is an enlarged plan view after the cord is tightened, and FIG. 4 is an exploded perspective view showing a conventional cord clamp fixing device. 1... Compressor main body, 2... Bracket, 8... U-shaped bag portion, 13... Cord clamp screw, 21... ...Cord clamp body, 22...Groove, 23...Insertion locking protrusion, 24...Separate cord clamp, 26...
...Guiding protrusion, 26... Depression part. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 3

Claims (1)

[Claims] A bracket fixed to a compressor body, a cord clamp body screwed to the bracket and having a substantially U-shaped bag portion, a separate cord clamp inserted and fixed to the cord clamp body, and the cord clamp. The cord clamp body has a groove in the insertion direction, the cord clamp separate body has a guide protrusion in the insertion direction, and the cord clamp body has a guide protrusion in the insertion direction. A cord clamp fixing device for a compressor, characterized in that the cord clamp has an insertion locking projection, and the cord clamp separate body has a recess corresponding to the insertion locking projection.