JPS59209731A - Method for fitting boot in hydraulic apparatus - Google Patents

Abstract

PURPOSE:To attain labor saving in the process for fitting a sealing boot between a cylinder and a piston, by providing a boot guide jig, and a jig for pushing in the boot and a jig for inserting the boot in the groove, both last mentioned jigs being constructed of a T-shaped supporting member and levers rotatably attached thereto. CONSTITUTION:The boot guide 7 is mounted on the operating end portion of the piston 3, and a boot 25 is put on the tapered surface of the guide jig 7 from above. The lower portion 17 of the shaft of the supporting member body of the jig for pushing in 13 is pushed into the vertical hole 12 in the direction as indicated with A, and at the same time the end portions 20, 20' of the levers for pushing in 18, 18' are kept in abutment with an annular recess in the boot 25 toward its center, so that the boot may be inserted in the groove 5 in which the boot is to be fitted on the side of the operating end portion of the piston. Then, by the use of the jig for inserting the boot in the groove 21, the lower portion 17 of the shaft of the supporting member body of the same being pushed into the vertical hole 12 similarly to the above, the boot 25 is inserted in the groove 6 in which the boot is to be fitted on the side of the opening end portion of the cylinder.

Description

[Detailed Description of the Invention] The present invention is hydraulically operated! +Relates to a method of assembling a boot for completely sealing between the cylinder and the piston to the open end of the cylinder of the device and the working end lip of the piston that is slidably fitted into the cylinder.

In the past, boot assembly was done by hand, which was not only inefficient, but also required careful manual work and skill, and the output was low depending on the level of skill. If they were very different, it would become a big barrier to becoming a multi-talented person or a passive person.

In order to save labor by eliminating such goods and harm, Fukaku and Ming were made by installing several boot guide jigs at the histone operating end. Set the boot and use a push-in jig and a grooving jig to fit the boot provided on the outer periphery of the piston's operating end. JI′+
2 rays, '1! This method involves pushing the boots into the chair.

``41'' In a hydraulic actuating device in which a piston is slidably fitted into a cylinder, the piston working end has a rotational force of 1v1 approximately in a round shape, and the outside diameter of its skirt is the outside diameter of the piston working end. Set a foot guide jig that is slightly larger and has a vertical hole in the joint and center part at the bottom, and place a boot on the inclined margin 47j for 1 m, then make a roughly T-shaped support. A pair of pushing levers are swung on the protruding part on the right side of the main body; At the same time, insert the tip of the pushing lever into the ring 1 μm inside the boot.
The piston operates the jia part! 1: Push into the boot fitting reservoir on the side J, and insert the entire circumference of the boot (the first step is to insert it over Iζ), and then insert a roughly T-shaped letter f, and one pair on the left and right protruding parts of 'J Honbutsu'. The meeting ζ 1 person iz leveraka, h can move freely (
The entire lower shaft of the centrally attached grooving jig is inserted into the vertical hole of the boot guide jig by 1ψ, and the outer end of the boot that has been grooved in the first step is Apply the tip of the grooving lever and push the boot into the boot fitting groove on the open end of the cylinder. By repeating the pushing and returning operations over the entire circumference of the boot, and by rotating the boot fully, the cylinder is opened over the entire circumference of the boot by utilizing the expansion and contraction function of the boot. iA section'
The method is to assemble the boot of the hydraulically actuated device by grooving the l'A'J boot fitting groove (second step).

Hereinafter, one embodiment of the present invention will be described with respect to rotation.

In FIG.
9 end, ・4 is cylinder opening end Tea 1,5
is the boot fitting groove on the piston operating end side, 6 is the cylinder tj
i40 end side goot fitting τ774': T. Next 7
Boots Guide Osamu J4. The cross section in the direction of rotation is approximately trapezoidal and the top 8
The outer diameter of the hem 9 that contacts the piston operating end 3 is smaller than the inner diameter of the boot to be assembled, and the outer diameter of the hem 9 that contacts the piston operating end 3 is slightly larger than the outer diameter of the piston operating end 3. ■・h! 1° 1.1 Since it is set in part 3, one part has an 11 square part 11 corresponding to the piston opening 10, and supports the pushing jig 13 and lfq insertion jig 21, which will be described later. The lower shaft of the main body 17 has a t mark (
The hole 12 is located in the center.

Next, 13 in FIG. 1(b) is a substantially T-shaped support book (1) that uses a pushing jig to insert a protrusion 14, 14' in the upper left A).
An i-i handle part 16 is provided on the upper part of the H-15, and the lower part of the support body, 1i17, can be rotatably fitted into the vertical hole J2 of the boot guide sharpening tool 7. A pair of push-in levers 18.18' having a length corresponding to the lower shaft 17 of the supporting body 14.14' are swingably pushed into the pivot by the pin 15) 219'. The push-in lever is 18°18'.
, 201 is inside (till only a few fathers) (have [,,
It has a spatula-like shape so that it can be bent from that part to an angle within 1ill and inserted into a hollow-shaped recess.

Next, reference numeral 21 denotes a grooving jig, and the protrusion 14 of the support body 15 is exactly the same as that in the pushing jig 13. A pair of ? +"C-insertion levers 22, 22' are similarly pivoted by pins 2:3, 23', and their tips 24, 24
The inside of the boot has a step part of considerable size and is inserted into the fold-shaped recess] - It has a spatula-like shape.

In this embodiment, the piston operating end (il
llll boot fitting allowance 15Ij and 1 cylinder 1"
Is the boot fitted to the bottom end? +'I'r6 to (2)
Attach Mll to each process. The entire assembly procedure will be explained below. .

As shown in Figure 1 (a), make the boot guide ↓ 1 nearer with a piston! IIIJ end 3, and zone 2511 (
I? 1-5 Then, at the same time, push the supporting non-stop lower shaft 17 of the pushing jig 13 shown in FIG.
The tips 20 and 20' of the push-in levers 18 and 18' are applied to the annular recess on the inner furnace side of the boot 25, and the boot is moved along the slope of the boot guide jig 7 as shown in FIG. Inner end of fJB including Niviston operation☆1 Push into i15 side boot section 7+'+5 and make a groove. Apply this operation to the entire circumference of the boot and the first step is the piston force! :1h
Sound ■ 111 points (to Ibariain 7/Z 5) - points <7
．． Complete 7 insertions.

Next, using the grooving jig 21 shown in Fig. 1 (C) VC, cut the lower part of the main body! 1'll+ 17 is pushed into the vertical hole 12 of the boot guide jig 7 in the same way as in the first step, and at the same time C. , the tips 24, 2 of the grooving lever 22, 22' as shown in FIG.
4. Place the stepped part of ' on the upper edge of the boot 25 and move it in the direction of the arrow from arrow C, '! Push the boot 25 into the boot fitting groove 6 on the cylinder opening end side according to the arrow so that it is in the state shown in step 1(b). ′
As shown in Figure 3(C), move to the designated position 11 according to the arrow.
3(b) and the cylinder opening end/[ill boot fitting groove 6 shown in FIG. 3(b) and FIG. 3(c)
The return operation shown in Figure 3 (d), in other words, the entire circumference of the boot is returned by itself, and then rotated in the E direction along the F boot fitting camp shown in Figure 3 (d) K: ii 1]
Cylinder nib 7 mark l, end '6i! i boots mating groove 6
(Cjlil Insertion X7 and vJ-' Push the boot 25 into place by pressing it against the annular recess and apply a force outward as shown by the arrow, and rotate it to fit the boot on the cylinder opening end side i11') 6. After the second step, the entire boot 25 is grooved.

The method for assembling the boots is as follows. It fits into the groove shape (〜で＆：：),
Compared to the handmade work of J. 346, this was a great labor-saving measure.4.
) is the hydraulic operation used in the embodiment of the present invention! Auxiliary equipment row
: (and boot guide jig, (b) is a pushing jig, and (c) is a grooving jig.
In Figure 2, the piston operates y; +674! 1 explanatory diagram of the first culm of the present inventor's example of grooving the translation groove, : 2', 3 (a)
(b) (c) (dl (e) 'trt-outside the boot't
'l %j part 7 rings one race 110qg part! lii foots in the ditch? It is an explanatory view of the second step of the final embodiment of the present invention, which completes the grooving of the boots by inserting f7J'.

1・・・・・・・・・・・・−・ Piston 2・・・・・・
・・・・・・ Cylinder 3・・・・・・・・・ Piston work 1111. l
End part 4・・・・・・・・・ Ninda j drowning,
:, li, i part C... Piston operation ☆j! i! Side boot fitting groove 6...
・・Cylinder opening end H% (11 pieces 1 fitting groove 7・
・・・・・・・・・・-Boot guide jig 13・・・・
... Push jig 18.18'... Push [7
Push-in lever 2.0.20'... Push-in lever mis-arc: part 21... Full-person placement jig 22
．． 22'... Ih insertion lever 24. 24'... 'NJc insertion lever base 1 2
5・・・・・・・・・ Boots 1 / Bamboo 1 Figure (bl (c) Figure 3 (0)

Claims (1)

[Scope of Claims] A hydraulic actuating device 6 in which a piston is slidably fitted into a cylinder has a piston operating end having a substantially trapezoidal cross section in the rotational direction and an outer diameter of the skirt portion thereof being slightly larger than the outer diameter of the piston operating end. Set a boot guide jig with a fitting part at the bottom and a vertical hole in the center, and attach the boot to the sloped surface of the jig.
! eL, Next, a pair of pushing levers are pivoted on the upper right and left protrusions of the approximately T-shaped support body, and the lower shaft of the support body of the pushing jig, which is tilted, is pivoted vertically across the entire length of the boot guide jig. At the same time as it is pushed into the hole, the tip of the push-in lever is moved along the inclined surface of the boot guide jig into the annular recess on the inner side of the boot, and the piston operating end is pushed into the inner end of the boot. 1ijj Boot fitting groove) Push into the locus and groove the entire boot.
), then Flip the bottom shaft of the support body of the grooving jig, which has a pair of grooving levers swingably attached to the upper left and right hem IB portions of the T-shaped support body, to the front of the Flip self-boot guide. The above-mentioned ? j'7 Place the lever on the tip and open the cylinder 1ft.
'l Push the boot into the boot fitting groove, then insert the shoulder into it, return it to the specified position, repeat this operation of pushing and returning the boot using the insertion lever around the entire circumference of the boot, and rotate the boot. By using the expansion and contraction function of the boot, the outer end of the boot extends around the entire circumference of the boot and the cylinder opening end (iilj).
Grooving into the boot fitting groove (second step) (C-Method for assembling the boot of the featured hydraulic actuator.