Requirements for Unity of Application - Japan Patent Office

[Example 22 ]
[Title of the Invention ]
Chuck for web-fed apparatus and the web-fed apparatus
[Claims]
1. A chuck for a web-fed apparatus, comprising a housing (31) which is attached on a mandrel
(33) so as to be rotated and where at least one circumferential groove is set up in its external
surface; a spring (39) with multiple cantilever fingers (42) which is placed in said circumferential
groove and is so formed that they are integrated with the bottom contacting the floor of the groove.
(See Figure 3.)
2. A web-fed apparatus, comprising a chuck (19) as described in Claim 1 fixed at one end of an
arm (18); a base (20) supporting the arm so it can oscillate it midway between a socket (22)
fixed at the other end of said arm and said arm; a fluid cylinder (23) consisting of a piston rod
(24) attached to said base so it can oscillate and a cylinder casing (25) brought into contact
with the piston rod; a ball (26) supported on said casing and engaged with the socket, which
freely connects the fluid cylinder to the arm. (See Figure 1, 2 and 3)
[Excerpt from Detailed Description of the Invention and Drawings]
This invention relates to a high-speed web-fed apparatus that works with fixed winding
tension.
The conventional web-fed apparatus had several drawbacks, especially if it was applied at a
high winding speed: it was apt to induce vibrations or chamfers and hard to apply at a fixed
intension on account of combinations of its parts that were too loose or too tight; wound roll
jounced or jumped on a winding drum, as a result causing flat spots and uneven hem.
Figure 1
Figure 3
Figure 2
[Explanation]
Though the respective technical fields of the specified invention (Claim 1) and the related
invention (Claim 2) are “a chuck” and “a web-fed apparatus”, it is mentioned in the Claims that a
chuck is applied to the technical field of a web-fed apparatus. Therefore, technical fields of both
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