JP2928896B2 - Method and apparatus for partially removing weather strip - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a means for cutting off a part of a weather strip for sealing between a car body and a door.

[0002]

2. Description of the Related Art A molded weather strip is disposed at a corner where two extruded weather strips are connected at substantially right angles. Then, as shown in FIGS. 1 and 2, when the cross-sectional shape of the extruded weather strip 90 has a base portion 92, a hollow seal portion 93, and a lip portion 91, the other portion except one lip portion 91 is left. The part is cut out to form a protruding lip part 91 as shown in FIG.
The projecting lip portion 91 may be joined to the molded portion.

However, depending on the shape of the protruding lip portion 91 to be cut off, an extension of the cutting line 99 passes through the protruding lip portion, so that a desired cut may not be performed with only one cut. For example, in the case of the weather strip having the cross-sectional shape shown in FIG. 1, if a cutting tool is inserted from the direction D to the line EE, a part G of the protruding lip portion 91 will be cut. For this reason, conventionally, cutting was first performed from the H direction to the line JJ, and then from the K direction to the line LL. This required two cutting steps.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to make it possible to leave the protruding lip portion 91 with only one cut.

[0005]

A description will be given with reference to FIGS. 1 to 21. FIG. The method of cutting off a part of a weather strip according to the present invention is a method of cutting off the remaining part of the extruded weather strip 90 including the hollow seal part 93, the lip part 91 and the base part 92 while leaving only the desired part. A method of partially notching a strip, in which a remaining lip portion 91 is placed on a fixed blade 30 and clamped by a stopper 60;
Is raised to approximately the same vertical position as the fixed blade 30, and the crushing tool 55 is lowered to clamp the non-cut-off portion between the base blade 20 and the crushing tool 55. The step of lowering the blade 20 and the fixed blade 30 so as to be in contact with the cutting blades 21 and 31 to cut off the cut-off portion of the weather strip is performed.

Further, the weather strip partial cut-off device according to the present invention has another structure except for a desired portion of the lip portion 91 of the extruded weather strip 90 including the hollow seal portion 93, the lip portion 91 and the base portion 92. A partially cut-out device of a weather strip for cutting off a portion, wherein a fixed blade base 11 corresponding to a remaining lip portion 91 is erected on a base 10 and fixed to be used for forming a vertical cut surface on the fixed blade base 11. A blade 30 is provided, and the remaining lip 9
The horizontal cutting surface base plate 20 and the limit sensor 45 which rise to the height of the fixed blade 30 while maintaining the cutting space 12 having a length S of 1
Are arranged on the lower surface of the elevator 50 arranged above,
Is located on the crushing tool 55 and the cutting space 12 located above
An upper blade 75 corresponding to the fixed blade 30 and the base blade 20 is provided.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 10 denotes a base, reference numeral 20 denotes a lifting / lowering blade provided on the base 10, reference numeral 22 denotes a guide portion of an extruded weatherstrip 90 provided on the lifting / lowering blade 20, and reference numeral 23 denotes a telescopic power for raising and lowering the blade. A body 24 is a lock bar that moves toward and away from the raised blade 20 and is attached to the base 19. Reference numeral 25 denotes a telescopic power member for moving the lock rod forward and backward.

Reference numeral 11 denotes a fixed blade base provided on the base 10;
Is a replaceable fixed blade mounted on the fixed blade base 11, and is fixed by bolts 32. A limit plate 33 is fixed to the fixed blade 30 by bolts 34.
When viewed in a plan view, the cutting blade 21 of the base blade 20 and the cutting blade 31 of the fixed blade 30 are arranged so as to be at right angles.
A right-angled cutting space 12 sandwiched between the two is formed.

A limit sensor 45 is provided on the opposite side of the cutting blade 12 with respect to the cutting blade 12 so as to advance and retreat in a direction toward the cutting blade 20 by a telescopic power body 46.

Reference numeral 13 denotes a column erected on the base 10, and reference numeral 50 denotes a lift board erected on the column 13. 55 is an elevator 50
The compression coil spring 56 is disposed in the crusher and is suspended above the blade 20. Reference numeral 51 denotes a telescopic power body for raising and lowering the lifting board 50.

Reference numeral 60 denotes a restraint which moves toward and away from the fixed blade 30. The restraint is attached to the base 10, and is moved forward and backward by a telescopic power body 61 for the restraint.

Reference numeral 65 denotes a raising tool which protrudes and retracts toward the cutting space 12 below the fixed blade 30. Numeral 66 denotes a telescopic power body for elevating the tool.

Reference numeral 70 denotes a positioning tool which is pivotally supported on the base 10 via a pivot 71, and is rotated by a telescopic power member 72 so as to move forward and backward. Reference numeral 75 denotes an L-shaped upper blade that moves up and down with respect to the cutting space 12, and when the lower blade 75 descends, the cutting blade 76
In addition, each of the cutting blades 31 and 21 of the base blade 20 approaches and passes.

[0014]

As shown in FIG. 7, when the weather strip 90 is moved in the direction D by the transport means 15, its tip hits the limit sensor 45 as indicated by a phantom line in FIG. This state is the state shown in FIGS.

The telescopic power body 72 extends, and the positioning tool 70
Is turned down (FIG. 14), and the lip portion 91 is placed on the rake face 33 of the fixed blade 30, and the base of the lip portion 91 is attached to the cutting blade 3.
1 (FIGS. 9 and 15).

The telescopic power body 61 is extended, and the stopper 60 is pressed onto the lip 91 (FIG. 16) to fix the lip 91. The telescopic power body 72 is shortened, and the positioning tool 70 is retracted (the state shown by the solid line in FIG. 4).

The telescopic power body 66 extends, and the raising tool 65 moves forward to raise the weather strip 90 as shown in FIG.

The telescopic power unit 46 is shortened and retracted from the limit sensor 45.

The blade base 20 rises (FIG. 10).

The telescopic power body 25 extends, the lock bar 24 fits into the fitting hole 27 of the blade 20, and the blade 20 is fixed immovably up and down.

The crushing tool 55 descends together with the lift board 50 by the operation of the telescopic power body 51 (FIG. 11).

The weather strip 90 is crushed by the crushing tool 55.
Is pressed against the rake face 28 of the blade 20, and the weather strip 90 is resiliently compressed by the compression coil spring 56.
Is fixed (FIG. 12).

When the lowering of the elevator 50 further proceeds, the upper blade 75
Where the cutting edge 76 is close to the cutting edge 21 and the cutting edge 31 (0.5
(at an interval of about mm) to cut off the cut-off portion 94 of the weather strip 90 (FIG. 19).

The upper blade 75 and the crusher 5 together with the elevator 50
After 5 retreats upward and the lock bar retreats,
The blade 20 retreats downward, and the limit sensor 45 moves forward.

With the above, one stroke is completed, the weather strip 90 is fed in the direction D, and the next operation is started.

[0026]

The present invention has the following features as compared with the conventional example in which the lip portion is left after only one cut shown in FIG.

By changing the jig 37, the cutting angle LL of the lip portion 91 can be freely selected. In the past, it was not possible with one cutting.

By exchanging the upper blade 75 and the base blade 20, the radius R of the corner arc between the cutting line of the lip portion 41 and the cross section of the weather strip can be changed.

By moving the adjusting tool 35, the uncut lip width W can be changed.

By adjusting the position of the limit sensor 45, the uncut lip length S can be adjusted.

Since the processing weather strip is carried in with the base blade 20 lowered, the carrying property of the processing weather strip is improved.

The cutting blade 21 of the base blade 20 is replaced by the cutting blade 3 of the fixed blade 30.
24, since it is raised to a height T to the same horizontal plane as that of FIG.
The appearance quality of the cut surface of the horizontal cut surface 96 is improved as compared with the conventional example shown in FIG. The present invention can also be applied to the weather strip having the cross-sectional shape shown in FIGS. 22 and 23 using the same machine.

Conventionally, to obtain a clean cut surface,
Ponce-type blades did not work well, but the ponse-type blades were not unavoidable because their life was shortened, and they lacked versatility, and residues during cutting were likely to remain. In the present invention, it is possible to cope with weather strips of various dimensions, the service life of the blade is long, and no cutting residue remains.

[Brief description of the drawings]

FIG. 1 is a sectional view of a weather strip.

FIG. 2 is a perspective view of a weather strip before processing.

FIG. 3 is a perspective view of the weather strip after processing.

FIG. 4 is a front view of the entire apparatus in a state where a lifting board is raised.

FIG. 5 is a left side view of FIG.

FIG. 6 is a perspective view of a main part as viewed obliquely from the rear left.

FIG. 7 is a plan view of a main part.

FIG. 8 is a side view of a main part on line BB of FIG. 7;

9 is a cross-sectional view taken along the line AA of FIG. 7, showing a state in which the blade is lowered.

FIG. 10 is a cross-sectional view taken along the line AA in FIG. 7, showing a state where the blade is raised;

FIG. 11 is a sectional view taken along the line AA of FIG. 7, showing a state in which the blade is locked.

FIG. 12 is a cross-sectional view taken along the line AA of FIG. 7, showing a state in which the crusher is lowered.

FIG. 13 is a sectional view taken along the line BB of FIG. 7, showing a state in which the weather strip is carried in.

FIG. 14 is a sectional view taken along the line BB of FIG. 7, showing a state in which the positioning tool is turning.

FIG. 15 is a sectional view taken along the line BB of FIG. 7, showing a state in which the positioning tool has pressed the weather strip.

FIG. 16 is a cross-sectional view taken along the line BB of FIG. 7 and shows a state in which the restraining tool presses the lip portion.

FIG. 17 is a cross-sectional view taken along the line BB of FIG. 7, showing a state where the raising tool has advanced.

FIG. 18 is a sectional view taken along the line BB of FIG. 7, showing a state in which the upper blade is lowered.

19 is a sectional view taken along the line BB of FIG. 7, showing a state where the upper blade has cut the lip.

20 is a cross-sectional view taken along the line BB of FIG. 7, showing a state where a cut-off portion falls.

21 is a cross-sectional view taken along the line CC of FIG. 7, showing a state where the upper blade has cut off the cut-off portion.

FIG. 22 is a sectional view of another weather strip to which the present invention is applied.

FIG. 23 is a sectional view of still another weatherstrip to which the present invention is applied.

FIG. 24 is a sectional view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Base 11 Fixed blade stand 12 Cutting space 13 Column 15 Conveying means 20 Base blade 21 Cutting blade 22 Guide part 23 Telescopic power body 24 Lock rod 25 Telescopic power body 26 Weather strip guide part 27 Fitting part 28 Rake face 30 Fixed blade Reference Signs List 31 cutting blade 32 bolt 33 rake face 35 adjusting tool 36 bolt 37 jig 45 limit sensor 46 telescopic power body 50 elevating board 51 telescopic power body 55 crushing tool 56 compression coil spring 60 inhibitor 61 telescopic power body 65 erecting tool 66 telescopic power Body 70 Positioning tool 71 Axis 72 Telescopic power body 75 Upper blade 76 Cutting blade 90 Weather strip 91 Rip portion 92 Base portion 93 Hollow seal portion 94 Cut-off portion 95 Horizontal cut surface 96 Vertical cut surface 99 Cut line

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B29C 37/00-37/04

Claims (2)

(57) [Claims] 1. A hollow seal part (93) and a lip part (9).
In the method of partially cutting out the weatherstrip, which leaves only the desired portion of the lip portion (91) of the extruded weatherstrip (90) composed of the base portion (92) and the extruded weatherstrip (90), the remaining lip portion ( A step of holding the non-cut hollow seal portion (93) with the base blade (20) so as to support the non-cut hollow seal portion (93) in a vertical position substantially the same as the fixed blade (30); And lowering the crushing tool (55) to clamp the non-cut-off portion between the pedestal blade (20) and the crushing tool (55). 20) A method of partially cutting off an extruded weather strip comprising a step of lowering the cut edge of the weather strip so as to be in contact with the cutting blades (21, 31) of the fixed blade (30). 2. A hollow seal part (93) and a lip part (9).
1) A partially cut-out device for a weather strip, which cuts off other portions except for a desired portion of a lip portion (91) of an extruded weather strip (90) including a base portion (92) and a base. (10) The remaining lip (9
A fixed blade base (11) corresponding to (1) is erected and a fixed blade (3) used for forming a vertical cut surface on the fixed blade base (11).
0), and the remaining lip (9) is provided on one side of the fixed blade (30).
1) While maintaining the cutting space (12) having the length S, the fixed blade (3)
0), the base plate (2) for the cross section (15) rising to the height of
0) and a limit sensor (45), a crushing tool (55) located on a base blade (20) and a cutting space (12) on a lower surface of a lift board (50) arranged above, An extruded weather strip partial cut-off device comprising an upper blade (75) corresponding to a fixed blade (30) and a base blade (20).