JPH05228749A - E-ring fitting device - Google Patents

Abstract

PURPOSE:To provide an E-ring fitting device which does not need a larger force in fitting an E-ring to a shaft to be fitted, and is capable of correctly fitting the E-ring without applying the large moment to the tip part of the fitted shaft. CONSTITUTION:An E-ring fitting device is provided with a stand for storing E-rings 30, and a jig part 35 of a shaft 10 to be inserted is formed forward of the stand 30, while an E-ring holder 38 driven by an air cylinder 42 is arranged aftward of the lower part of the stand 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an E-ring insertion device, and more particularly to an E-ring insertion device used for locking a vehicle-mounted speaker or the like on a shaft fixed to the main body.

[0002]

2. Description of the Related Art Generally, for example, an in-vehicle speaker or the like has an insertion shaft 10 fixed to a vehicle body 20 as shown in FIG.
It is fitted and attached to and is prevented from coming off by the E-ring 12. A groove 11 for inserting an E ring 12 is formed in the insertion shaft 10, and the E ring 12 is a holder 1
4 is used to lock in the groove 11. The E-ring 12 is normally housed in a stand 18 as shown in FIGS. 6 and 7, and the stand 18 has an engaging portion 19 that is T-shaped in a plan view. 12 is inserted from above. Further, the lowermost portion of the engaging portion 19 does not have a T-shape in a plan view, and the E ring 12 has a shape that can be easily removed from the engaging portion 19.

A slit 15 is formed in the lengthwise direction at the center of the holder 14 on the front end side.
At the fitting portion 16 formed at the tip of the E-ring 12
Is elastically held.

When the E-ring 12 is locked in the groove 11 of the insertion shaft 10 by using the holder 14, first the holder 1
E-ring 1 in which the fitting portion 16 of No. 4 is housed in the stand 18
2 and presses the holder 14 to utilize the elastic force of the E-ring 1
2 is removed from the stand 18, and then the fitting part 16
The holder 14 was applied to the groove 11 while the ring 12 was held, and the E ring 12 was attached to the groove 11.

[0005]

When attaching the E-ring 12 to the insertion shaft 10 using the holder 14 described above,
Removing the ring 12 from the stand 18 is relatively easy.

However, in order to lock the E ring 12 housed in the fitting portion 16 in the groove 11, a considerably large pressing force is required. Moreover, the length of the insertion shaft 10 to which the speaker 13 and the like are attached is considerably long, and therefore the E ring 12
At the time of mounting, there is a problem that a large moment acts on the tip end portion of the insertion shaft 10 to bend the insertion shaft 10 or cause the insertion shaft 10 to wobble with respect to the vehicle body 20. Furthermore, since the E-ring 12 was attached to the groove 11 manually, the E-ring 12 was attached to the insertion shaft 10.
When the E-ring 12 is obliquely attached to the insertion shaft 10, the E-ring 12 easily comes out of the groove 11 or the speaker 13 is not accurately positioned. There were also challenges.

The present invention has been invented in view of the above-mentioned problems, and does not require a force to attach the E-ring to the insertion shaft and does not apply a large moment to the distal end portion of the insertion shaft. An object of the present invention is to provide an E-ring inserting device that can insert an E-ring accurately.

[0008]

In order to achieve the above object, an E-ring inserting device according to the present invention comprises an E-ring accommodating stand, and a jig portion of an E-ring inserting shaft is formed in front of the stand. On the other hand, an E-ring holder driven by an air cylinder is disposed behind the lower part of the stand.

[0009]

According to the above construction, the tip portion of the E-ring insertion shaft is supported by the jig portion, and a large moment does not act on the tip portion of the insertion shaft. Further, since the jig portion accurately positions the E-ring holder with respect to the insertion shaft, the E-ring is not locked obliquely with respect to the insertion shaft.
Moreover, since the E ring holder is driven by the air cylinder, a large force is not required to attach the E ring.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an E-ring insertion device according to the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic side cross section of an E-ring inserting device, and 30 in the figure shows a stand for accommodating the E-ring 12. As shown in FIGS. 2 to 4, the stand 30 includes a cylindrical portion 31 and a position regulating piece 32. The cylindrical portion 31 supports the outer peripheral portion of the E ring 12, and the position regulating piece 32 supports the E ring 12. It is configured so that the open end side of is accurately oriented in the insertion direction.
A through hole 31a for inserting the E-ring holder 38 is formed in the front and rear portions near the lower end of the cylindrical portion 31,
Further, the position regulating piece 32 is not formed up to the lower end portion of the cylindrical portion 31, and the E ring holder 38 is configured to be movable in the front-rear direction below the stand 30.

A jig portion 35 is formed in front of the stand 30 to be fitted on the upper portion of the insertion shaft 10. The inner diameter of the jig portion 35 is substantially equal to the outer diameter of the insertion shaft 10. A plurality of pin holes 36 for restricting the insertion length of the insertion shaft 10 into the jig portion 35 are formed at predetermined positions on the side surface of the portion 35.

An E-ring holder 38 is arranged so as to pass through the lower part of the stand 30, and a step portion 38a for pressing the E-ring 12 toward the insertion shaft 10 is formed in the E-ring holder 38. The E-ring holder 38 is connected to the piston 40, and the piston 40 is connected to the air cylinder 42 via the piston rod 41.

The air cylinder 42 has two connecting portions 52,
53 is formed, and the connecting portions 52 and 53 are connected to the connecting portions 54 and 55 which are switched by the switching lever 46 via the air tubes 48 and 49. The connecting portions 54 and 55 communicate with the connecting portion 56 via the switching lever 46, and the connecting portion 56 is connected to an air source (not shown) via the air tube 50.

The piston 40, the piston rod 41 and the air cylinder 42 are housed in a cover 44, and a handle portion 45 is attached to the lower surface of the cover 44 and a handle portion 45.
The switching lever 46, the connecting portions 54, 55, 56 and the like are provided in the.

When the E-ring 12 is locked in the groove 11 of the insertion shaft 10 using the E-ring insertion device configured as described above, first, a plurality of E-rings 12 are fitted in accordance with the distance from the upper end surface of the insertion shaft 10 to the groove 11. The pin 37 is inserted into any of the individually formed pin holes 36. Next, the jig portion 3 is provided on the insertion shaft 10.
5 is fitted and the switching lever 46 is operated. The piston 40 is driven by the operation of the switching lever 46, and E
The ring holder 38 moves forward, and the step 38a causes the E
The ring 12 is pressed by the groove 11 and the E ring 12
To be locked accurately.

As described above, in the E-ring insertion device according to the present embodiment, the E-ring 12 is inserted into the groove of the insertion shaft 10 only by fitting the jig portion 35 into the insertion shaft 10 and operating the switching lever 46. 11 and the operator does not have to apply a large force to the E-ring holder 38 as in the conventional case. Moreover, the E-ring 12 is accurately positioned with respect to the insertion shaft 10 in the jig portion 35, and the E-ring 12 is not obliquely inserted into the groove 11. Therefore, the E-ring 12 does not come off the groove 11 after locking. Further, when the E-ring 12 is inserted into the groove 11, the upper portion of the insertion shaft 10 is supported by the jig portion 35, and a large moment does not act on the upper portion of the insertion shaft 10. Therefore, the insertion shaft 10 does not bend and the insertion shaft 10 does not wobble with respect to the vehicle body 20.

[0018]

As is apparent from the above description, in the E-ring insertion device according to the present invention, the E-ring is inserted into the insertion shaft only by fitting the jig portion to the insertion shaft and driving the air cylinder. Can be locked to the operator and does not require a great amount of force by the operator. Further, since the insertion shaft is supported by the jig portion, a large moment does not act on the upper end portion of the insertion shaft. Therefore, the insertion shaft bends or the insertion shaft wobbles with respect to the vehicle body. It can be prevented. Moreover, since the positioning of the E ring with respect to the insertion shaft is accurately performed by the jig portion, the E ring is not obliquely inserted with respect to the insertion shaft. Therefore, it is possible to prevent the E-ring from coming off the insertion shaft.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of an E-ring insertion device according to the present invention.

FIG. 2 is a plan view showing an E-ring insertion device according to an embodiment.

FIG. 3 is a partially enlarged plan view showing a main part.

FIG. 4 is a partially enlarged front view showing a main part.

FIG. 5 is a side view showing a relationship between an insertion shaft and a holder in a conventional example.

FIG. 6 is a plan view showing a conventional holder and stand.

FIG. 7 is a partial sectional side view showing a conventional holder and stand.

FIG. 8 is an enlarged side view showing a state in which an E ring is obliquely inserted with respect to an insertion axis.

[Explanation of symbols]

 10 Insertion Shaft 30 Stand 35 Jig Part 38 E Ring Holder 42 Air Cylinder

Claims (1)

[Claims] 1. An E-ring accommodating stand is provided, and a jig portion of an E-ring insertion shaft is formed in front of the stand, while an E-ring holder driven by an air cylinder is provided behind the stand. An E-ring insertion device characterized in that