US 6,629,360 B2 · Continuous riveter

Abstract

A continuous riveter is provided, which can make a rivet distance in a blind rivet holder small since an available continuous riveter having a linear guide plate elongated from a rivet supply section could not reduce the rivet distance while avoiding the interference with a vertically movable cylinder. A guide plate (43) elongated from an accommodation case (40) of a rivet supply section C is provided with a bent section (43b) inclined at a predetermined angle α with respect to a linear feed section (43a). An axis of a cylinder (31) is disposed on a shank R1 of a blind rivet held by an upper tab T4 of a blind rivet holder T immediately after the rivet holder T has passed through the linear feed section (43a) and bent.

Drawings

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Drawings

Claims7

Dependent claims

A continuous riveter comprising:

a chuck cylinder;
a nose piston inserted to the chuck cylinder so as to be movable vertically, and provided at its lower end with an elongated cylinder;
a jaw case piston to which a jaw case is fixed, the jaw case moving vertically within the chuck cylinder;
a jaw, internally inserted to a lower end of the jaw case and engageable and disengageable with and from a tapered surface on an internal lower end of the jaw case, for holding and releasing a shank of a blind rivet;
a jaw pusher elastically biased to abut against a top of the jaw;
a nose piece disposed at a lower end of the elongated cylinder, and to which the shank of the blind rivet is to be inserted;
and
a rivet supply section including:
an accommodation case for accommodating therein a web-like blind rivet holder in a wound state, the blind rivet being attached to the blind rivet holder;
and
a tape air cylinder for supplying the blind rivet attached to the blind rivet holder along a guide plate one by one,
wherein the guide plate is elongated from the accommodation case of the rivet supply section, and includes a linear feed section of a predetermined length and a bent section inclined at a predetermined angle with respect to the linear feed section, whereby a perpendicular section of the blind rivet holder is bent along the bent section, after being passed through the linear feed section of a predetermined length there along,
a pressing plate is provided, for pressing and guiding the perpendicular section of the blind rivet holder, along the guide face from the linear feed section to the bent section of the guide plate, whereby the blind rivet holder sent out linearly by a feeding claw that reciprocatingly linearly moves by means of the tape air cylinder, is guided from the linear feed section to the bent section, and is then bent there along due to the pressing plate, and
wherein the cylinder of the nose piston is disposed on a shank of a blind rivet held by an upper tab and a lower tab of the blind rivet holder immediately after the blind rivet holder has been passed through the linear feed section of the guide plate and has been bent at the bent section, so that the axis of the shank of the blind rivet coincides with the axis of the cylinder.

11 more elements

A rivet supply section in combination with a main cylinder, a nose piston movable reciprocally in the main cylinder, the nose piston having an end with an elongated cylinder, a jaw case piston to which a jaw case is fixed, the jaw case moving within the main cylinder, a jaw in an end of the jaw case and engageable and disengageable with a tapered surface on an internal lower end of the jaw case for holding and releasing a shank of a blind rivet, a jaw pusher elastically biased to abut against a top of the jaw and a nose piece disposed at a lower end of the elongated cylinder, and to which the shank of the blind rivet is to be inserted, the rivet supply section comprising:

an accommodation case for accommodating therein a web-like blind rivet holder in a wound state, the blind rivet holder having a plurality of first tabs and second tabs and a perpendicular web joining the first tabs and the second tabs, each blind rivet being attached to the first and second tab of the blind rivet holder;
a tape air cylinder for feeding the blind rivet holder along a guide plate with the blind rivets attached thereto, the blind rivets being periodically fed one by one;
an elongated guide plate extending from the accommodation case of the rivet supply to a location beyond an operation location, the guide plate including a linear feed section of a predetermined length and a bent section inclined at a predetermined angle with respect to the linear feed section;
a pressing plate extending spaced from the guide plate with a guide face from the linear feed section to the bent section of the guide plate, the pressing plate having a bend spaced from and corresponding to a transition from the linear feed section to the bent section of the guide plate;
a single opening in the guide plate and in the pressing plate for a single feeding claw;
a single feeding claw reciprocatingly linearly moving along the single opening by means of the tape air cylinder, the single feeding claw engaging the blind rivet holder and being guided from the linear feed section to the bent section for moving the blind rivet holder with the action of the movement causing the pressing plate, with bend, and opposed transition from the linear feed section to the bent section of the guide plate, to bend the perpendicular section and to periodically stop movement of the blind rivet holder to maintain one set of first and second tabs holding a rivet at the linear feed section of the guide plate with an adjacent set of first and second tabs holding a blind rivet at the operation location along the bent section of the guide plate, wherein the cylinder of the nose piston is disposed for action in the operation location with the position of the blind rivet at the operation location coincides with an axis of the nose piston.

3 more elements

A rivet supply section in combination with a blind rivet driving device, the driving device having a operation stroke extending into an operation location, the operation stroke having an operation stroke axis, the rivet supply section comprising:

an accommodation case for accommodating therein a web-like blind rivet holder in a wound state, the blind rivet holder having a plurality of first tabs and second tabs and a perpendicular web joining the first tabs and the second tabs, the first an second tabs being offset to arrange each rivet at an angle for a high density arrangement each blind rivet being attached to the first and second tab of the blind rivet holder;
a tape air cylinder for feeding the blind rivet holder along a guide plate with the blind rivets attached thereto, the blind rivets being periodically fed one by one;
an elongated guide plate extending from the accommodation case of the rivet supply to a location beyond the operation location, the guide plate including a linear feed section of a predetermined length and a bent section inclined at a predetermined angle with respect to the linear feed section;
a pressing plate extending spaced from the guide plate with a guide face from the linear feed section to the bent section of the guide plate, the pressing plate having a bend spaced from and corresponding to a transition from the linear feed section to the bent section of the guide plate;
a single opening in the guide plate and in the pressing plate for accommodating only a single feeding claw;
a single feeding claw reciprocatingly linearly moving along the single opening by means of the tape air cylinder, the single feed claw engaging the blind rivet holder and being guided from the linear feed section to the bent section for moving the blind rivet holder with the action of the movement causing the pressing plate with bend and an angled opposed transition from the linear feed section to the bent section of the guide plate to bend the perpendicular section between adjacent first tabs and adjacent second tabs and to periodically stop movement of the blind rivet holder to maintain one set of first and second tabs holding a rivet at the linear feed section of the guide plate with an adjacent set of first and second tabs holding a blind rivet at the operation location along the bent section of the guide plate, wherein the position of a central axis of the blind rivet at the operation location substantially coincides with the operation stroke axis.

3 more elements

Dependencies are inferred from the claim text.

Description2,456 words

Summary1,232 words

#1. Field of the Invention

#The present invention relates to a continuous riveter for continuously ejecting blind rivets that effect the caulking on metal plates and so on (the blind rivet being hereafter referred to as a rivet).

#2. Description of the Related Art

Brief description of the drawings17 figures

#In the accompanying drawings:

#FIG. 1 is a bottom view showing an embodiment of the present invention;

#FIG. 2 shows the embodiment as viewed in the arrow A—A direction of FIG. 1;

Detailed description986 words

#A preferred embodiment of the present invention will be described in detail with reference to the drawing attached hereto.

#FIG. 1 is a bottom view of a continuous riveter according to the present invention, FIG. 2 shows the continuous riveter as viewed in the arrow A—A direction of FIG. 1, FIG. 3 is a side view of the continuous riveter, and FIG. 4 is a perspective view of the guide plate portion. The same components in FIGS. 8 to 17 are denoted with the same referential numerals.

#As shown in FIG. 1, a guide plate 43 elongated from an accommodation case 40 of a rivet supply section C is provided with a bent section 43b which is bent in at a predetermined angle β with respect to the direction of a perpendicular section T2 of a blind rivet holder T through a linear feed section 43a of a predetermined length. The bent section 43b of the guide plate 43 is provided with a pressing plate 41 that presses and guides the perpendicular section T2 of the blind rivet holder T along the guide face from the linear feed section 43a to the bent section 43b. The end section 41a is a side where the blind rivet holder T of the pressing plate 41 enters, and is widened open in a taper form in the direction so that the blind rivet holder T can enter readily. With this pressing plate 41, the blind rivet holder T which is sent out linearly, will be surely guided and bent from the linear fees section 43a to the bent section 43b.

Facts

Application

09/880,360Filed 13 Jun 2001 · continuation in part

Priority

JP 10-12279516 Apr 1998

Published

US 2001/0054221 A127 Dec 2001

Granted

7 Oct 2003

Term ended

17 Jun 2019

Estimated · how

20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment, including 63 days of adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification6 codes

B21J 15/323
Devices for inserting or holding rivets in position with or without feeding arrangements: using a carrier strip
B21J 15/105
Riveting machines: portable riveters
Y10T 29/53496
Assembling means comprising hand-manipulatable implement: comprising driver for snap-off-mandrel fastener; e.g., Pop [TM] riveter
Y10T 29/5373
With second workpiece inside annular work one workpiece moved to shape the other: comprising driver for snap-off-mandrel fastener; e.g., Pop [TM]…

Timeline

16 Apr 1998Priority claimedJP 10-122795
13 Jun 2001Application filedUS 09/880,360
27 Dec 2001PublishedUS 2001/0054221 A1
7 Oct 2003GrantedUS 6,629,360 B2
3 Jul 2018Assigned to Koriyama Chip Industry Co., Ltd.assignment of assignor's interest
17 Jun 2019Term endedEstimated, includes 63 days of adjustment

Continuous riveter

Life of this patent

Continuous riveter

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims7

Description2,456 words

Drawings

Classification6 codes

Life of this patent

Description2,456 words