Processing machine and slide mechanism

Patent metadata

Field	Value
Publication number	US-12415243-B2
Application number	US-202017924733-A
Country	US
Kind code	B2
Filing date	May 14, 2020
Priority date	May 14, 2020
Publication date	Sep 16, 2025
Grant date	Sep 16, 2025

Abstract

A processing machine comprises: a cover that is provided with an opening and defines a processing area; a first door that is slidable between a first position in which the opening is opened and a second position in which the opening is closed; a second door that is disposed to overlap with the first door inside the processing area and slidable between the first position and a third position that is opposite to the first position with respect to the second position and in which the second door cooperates with the first door to close the opening; and a rail member that includes a grooved portion and an abutment that engage with the first door and is provided at the second door to allow the second door to slide with respect to the first door. The grooved portion and the abutment are disposed outside the processing area.

First claim

The invention claimed is:

1. A processing machine comprising:
a cover body that is provided with an opening and defines a processing area in which a workpiece is processed;
a first door that is slidable in a predetermined direction between a first position in which the opening is opened and a second position in which the opening is closed;
a second door that is disposed to overlap with the first door inside the first door with respect to the processing area and slidable in the predetermined direction between the first position in which the opening is opened and a third position that is opposite to the first position with respect to the second position and in which third position the second door cooperates with the first door to close the opening; and
a rail member that includes an engagement unit that engages with the first door so as to guide the sliding of the first door, which rail member is provided at the second door to allow the second door to be slidable with respect to the first door in the predetermined direction,
the engagement unit being disposed outside the processing area,
the second door including an outer surface and an inner surface separated by an internal space formed therebetween, the second door also being provided with a notch opening to the outer surface,
the outer surface being located outside the processing area and facing the first door when the first door and the second door are in the first position,
the inner surface being located inside the processing area,
the rail member being accommodated in the internal space, and
the first door engaging with the engagement unit in the internal space via the notch.

2. The processing machine according to claim 1 , wherein
the rail member is provided at the second door without projecting from the outer surface toward the first door.

3. The processing machine according to claim 1 , wherein
the engagement unit includes an open end that is located opposite to the first door when the first door is in the second position and the second door is in the third position and that opens in one direction along the predetermined direction, and
the second door further includes a door body portion provided with the rail member, and the second door includes a lid member that is attached to the door body portion and that closes an opening defined by the open end.

4. The processing machine according to claim 3 , wherein the lid member includes a labyrinth portion that extends toward the first door and forms a labyrinth structure with the first door.

5. The processing machine according to claim 1 , wherein
the predetermined direction is a horizontal direction,
the opening includes a front opening located in front, with respect to the machine, of the processing area, and an upper opening contiguous to the front opening and located above the processing area,
the second door includes a front door portion and an upper door portion that close the front opening and the upper opening, respectively, when the second door is in the third position, and
of the front and upper door portions, the front door portion is provided with the rail member.

6. A processing machine comprising:
a cover body that is provided with an opening and defines a processing area in which a workpiece is processed;
a first door that is slidable in a predetermined direction between a first position in which the opening is opened and a second position in which the opening is closed;
a second door that is disposed to overlap with the first door inside the first door with respect to the processing area and slidable in the predetermined direction between the first position in which the opening is opened and a third position that is opposite to the first position with respect to the second position and in which third position the second door cooperates with the first door to close the opening; and
a rail member that includes an engagement unit that engages with the first door so as to guide the sliding of the first door, which rail member is provided at the second door to allow the second door to be slidable with respect to the first door in the predetermined direction,
the engagement unit being disposed outside the processing area,
wherein the engagement unit includes an open end that is located opposite to the first door when the first door is in the second position and the second door is in the third position and that opens in one direction along the predetermined direction, and
wherein the second door further includes a door body portion provided with the rail member, and the second door includes a lid member that is attached to the door body portion and that closes an opening defined by the open end.

7. The processing machine according to claim 6 , wherein
the second door includes an outer surface that faces the first door when the first door and the second door are in the first position, and
the rail member is provided at the second door without projecting from the outer surface toward the first door.

8. The processing machine according to claim 6 , wherein the lid member includes a labyrinth portion that extends toward the first door and forms a labyrinth structure with the first door.

9. The processing machine according to claim 6 , wherein
the predetermined direction is a horizontal direction,
the opening includes a front opening located in front, with respect to the machine, of the processing area, and an upper opening contiguous to the front opening and located above the processing area,
the second door includes a front door portion and an upper door portion that close the front opening and the upper opening, respectively, when the second door is in the third position, and
of the front and upper door portions, the front door portion is provided with the rail member.

Assignees

• Dmg Mori Co Ltd

Inventors

• NAKANISHI Tatsuhiro
• Yamazaki Futoshi
• Kuriya Tatsuhiko

Classifications

• E05D15/0621

  Details, e.g. suspension or supporting guides (E05D15/0604, E05D15/08 - E05D15/14 take precedence) · CPC title

• B23B25/04

  Safety guards specially designed for turning machines ({B23Q11/08 takes precedence;} in general F16P) · CPC title

• B23B3/065

  Arrangements for performing other machining operations, e.g. milling, drilling · CPC title

• Y10T409/30392

  with means to protect operative or machine [e.g., guard, safety device, etc.] · CPC title

• Y10S29/056

  with shield or hood movements · CPC title