JP2005119753A - Gripping device for sheet-like skin material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gripping device for a sheet-like skin material capable of preventing the drop-off of the sheet-like skin material and two-piece formation of the material. <P>SOLUTION: The gripping device for the sheet-like skin material is provided with opposed gripping units; and a pair of claw members positioned at tips of the gripping units. The device grips the sheet-like skin material by approaching the pair of claw members to each other. The lower end surface of the gripping unit is formed into a horizontal surface and the claw member is formed such that a part projected from the lower end surface of the gripping unit is formed into a continuous crest-like shape at the opposed side surfaces and formed into a continuous crest-like shape on a flat surface. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a gripping device for sheet-like skin material.

  Conventionally, as a gripping device for a molding material, for example, a needle stick type device has been publicly known (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 5-8243 (first page, FIG. 1)

However, when gripping the sheet-like skin material to be adhered to the surface of the molding material, the above-described needle stick type has a problem that the sheet-like skin material is likely to fall. In addition, when the uppermost one of a plurality of stacked sheet-like skin materials is gripped, there is a problem that two sheets are taken.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a sheet-shaped skin material gripping device capable of preventing the sheet-shaped skin material from dropping and taking two sheets.

  In order to achieve the above object, a gripping device for sheet-like skin material according to the present invention comprises an opposing gripping tool and a pair of claw members positioned at the tip of the gripping tool, and the pair of claw members Is a device that grips the sheet-like skin material by forming the lower end surface of the gripping tool in a horizontal plane, and the claw member is formed on the opposite side surface by projecting from the lower end surface of the gripping tool. It is characterized by being formed in a continuous mountain shape and a continuous mountain shape on a plane.

  Moreover, the holding | grip apparatus of the sheet-like skin material in this invention is 3-5 mm in the state before the nail | claw members approach each other, and the clearance gap between the foremost of a pair of said nail | claw member is characterized by the above-mentioned.

  Furthermore, the sheet-shaped skin material gripping device according to the present invention is characterized in that the height from the lower end surface of the gripper to the lower end of the claw member is equal to or less than the thickness of the sheet-shaped skin material.

  The present invention comprises an opposing gripping tool and a pair of claw members positioned at the tip of the gripping tool, and grips a sheet-like skin material by bringing the pair of claw members closer to each other. The lower end surface of the gripping tool is formed in a horizontal plane, and the claw member is formed in a continuous mountain shape in a portion protruding from the lower end surface of the gripping tool on the opposite side surface and in a continuous mountain shape on the plane. Therefore, there are various effects such as prevention of dropping of the sheet-like skin material and removal of two sheets.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an overall front view showing a gripping device for sheet-like skin material. FIGS. 2A and 2B are detailed views of the gripping tool and the claw member, where FIG. 2A is a front view, FIG. 2B is a side view facing each other, and FIG. Examples of the sheet-like skin material include a fiber sheet material such as a nonwoven fabric or a knitted fabric.

  In FIG. 1, gripping tools 3 and 3 having a pair of claw members 2 and 2 positioned at their tips are fastened and fixed to slide members 1a and 1a that slide in the horizontal direction attached to the lower part of the air chuck 1. The gripping tools 3 and 3 are arranged to face each other. The gripping tools 3 and 3 have lower end surfaces 3a and 3a formed in a horizontal plane. Further, the claw members 2 and 2 are formed in a mountain shape in which the portions 2a and 2a projecting from the lower end surfaces 3a and 3a of the gripping tools 3 and 3 are continuous on the opposite side surfaces (see FIG. It is formed in a shape (see FIG. 2C).

In the present invention, the mountain shape refers to a tapered mountain shape, regardless of whether it is a one-sided inclination (see FIG. 4A) or a two-sided inclination (see FIG. 4B). The gripping tools 3 and 3 and the claw members 2 and 2 may be manufactured separately and fixed or fastened, or may be manufactured integrally.

  The operation of the device constructed as described above will be described. First, when the air chuck 1 is in the open end state, the air chuck 1 is lowered by lifting means (not shown). Then, the portions 2a and 2a protruding from the lower end surfaces 3a and 3a of the gripping tools 3 and 3 in the claw members 2 and 2 become the uppermost sheet-like skin material M among the stacked sheet-like skin materials. At the same time, the lower end surfaces 3a and 3a of the gripping tools 3 and 3 are pressed against the sheet-like skin material M to obtain the state shown in FIG. When the air chuck 1 is closed in this state, the pair of claw members 2 and 2 come close to each other so that the sheet-like skin material M is gripped. Thereafter, the gripped sheet-shaped skin material M is lifted as the air chuck 1 is lifted, and is transported to the next process by a transport means (not shown).

  In addition, in this invention, since the sheet-shaped skin material M is pressed in a horizontal surface by forming the lower end surfaces 3a and 3a of the gripping tools 3 and 3 in a horizontal plane, the gripping tools 3 and 3 bite into the sheet-shaped skin material M. There is no. For this reason, it is difficult to take two sheets of the sheet-like skin material M. When the air chuck 1 is closed, the claw members 2, 2 are formed in a continuous mountain shape by protruding portions 2 a, 2 a protruding from the lower end surfaces 3 a, 3 a of the gripping tools 3, 3 on the opposite side surfaces. 2 and 2 are prevented from slipping on the sheet-like skin material M and being unable to be gripped. Further, since the gripping force for gripping the sheet-shaped skin material M is improved by forming the claw members 2 and 2 in a continuous mountain shape on a plane, the sheet-shaped skin material M is difficult to fall.

  In the present invention, the gap S between the claw members 2 and 2 is the state before the pair of claw members 2 and 2 are brought close to each other, that is, the air chuck 1 is in the open end (see FIG. 1). Is preferably 3 to 5 mm. As a result, two sheets of the sheet-like skin material M are not easily taken. In addition, the said clearance gap S in this embodiment is 4 mm.

  Furthermore, in this invention, height T1 (refer FIG. 2 i) from the lower end surfaces 3a and 3a of the holding | gripping tools 3 and 3 to the lower end of the nail | claw members 2 and 2 is thickness T2 (refer FIG. 3) of the sheet-like skin material M. The following is preferable. This also makes it difficult to take two sheets of the sheet-like skin material M. In the present embodiment, the height T1 is 1 mm, and the thickness T2 is 2 mm.

  Although only one gripping device is illustrated in the embodiment of the present invention, a plurality of gripping devices may be used to grip one sheet-like skin material M.

It is a whole front view which shows the holding | grip apparatus of sheet-like skin material. (A): Detailed view of gripping tool and claw member, and is a front view. (B): Detailed view of the gripping tool and the claw member, and is a side view facing each other. (C) Detailed view of the gripping tool and the claw member, which is a plan view. It is a whole front view which shows the state which lowered | hung the air chuck. (A): A diagram showing a mountain shape, showing a one-sided inclination. (B): It is a figure showing a mountain shape and showing both sides of the slope.

Explanation of symbols

2 Claw member 3 Gripping tool 3a Lower end surface of gripping tool M Sheet-like skin material S Clearance between the most distal ends of the claw member T1 Height from the lower end surface of the gripping tool to the lower end of the claw member T2 Thickness of sheet-like skin material

Claims (3)

An apparatus for gripping sheet-like skin material by bringing the pair of claw members close to each other, the gripping tool comprising: an opposing gripping tool; and a pair of claw members positioned at the tip of the gripping tool. The claw members are formed in a continuous mountain shape on the opposite side surface and projecting from the lower end surface of the gripping tool, and in a continuous mountain shape on the plane. Sheet-like skin material gripping device. The sheet-shaped skin material gripping device according to claim 1, wherein a gap between the tip ends of the pair of claw members is 3 to 5 mm in a state before the claw members are brought close to each other. The height from the lower end surface of the said holding tool to the lower end of the said nail | claw member is below the thickness of a sheet-like skin material, The sheet-like skin material in any one of Claim 1 or 2 characterized by the above-mentioned. Gripping device.