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Winding device

Inactive Publication Date: 2009-09-17
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]The present invention has been made in consideration of the above situation. The present invention provides improved operational feeling of a wiring device with a simple configuration.

Problems solved by technology

It is thus difficult to control backward movement of the linear member at positions other than locking positions between the ratchet pawl and the ratchet teeth.
If the operator is unable to stop winding at desired positions, the HMD may be uncomfortable to wear.
However, a larger number of ratchet teeth usually require a ratchet wheel having a larger diameter.
This is disadvantageous for the HMD which is desired to be compact and lightweight.
However, this makes it complicated to release locking of backward rotation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0021]FIG. 1 is an external view of an HMD according to the present invention. When wearing the HMD on the head, the wearer can observe images displayed by the HMD.

[0022]A display unit 101 receives an image signal from a personal computer (PC) or the like, and displays an image to the wearer wearing the HMD. The display unit 101 includes a display device, such as a charge-coupled device (CCD) sensor, for displaying an image, and an optical system. The optical system enlarges an image on the display device, and guides the enlarged image to the eyes of the wearer wearing the HMD.

[0023]A frame 102 covers the top and sides of the wearer's head. The frame 102 hangs across the top of the wearer's head to cover both sides of the head. The frame 102 is connected to the display unit 101.

[0024]A tube 103 extends around the back of the wearer's head. The tube 103 is an elastic accordion tube connected and secured to the frame 102.

[0025]A back head pad 104 comes into contact with the back of th...

second embodiment

[0057]In a second embodiment described below, the adjusting unit 109 is used as a fastening mechanism for ski boots.

[0058]FIG. 9 is a perspective view of a ski boot provided with the adjusting unit 109.

[0059]FIG. 10 is a side view of the ski boot provided with the adjusting unit 109.

[0060]Hereinafter, a ski boot provided with the adjusting unit 109 will be described with reference to FIG. 9 and FIG. 10.

[0061]A shell 901 covers a foot of a wearer of the ski boots. The shell 901 includes a toe portion 902, a heel portion 903, an ankle portion 904, an upper portion 905, and a foot insertion opening 906. It is desirable that the shell 901 be made of hard and elastic material.

[0062]A flapper 907 covers the ankle portion 904 and the upper portion 905. The flapper 907 surrounds the upper portion 905 and opens toward the front of the wearer's foot. The flapper 907 is fastened to the shell 901 by bonding, welding, or the like in an area near the Achilles' tendon.

[0063]The flapper 907 has a p...

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PUM

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Abstract

A winding device includes a winding member that rotates to wind a flexible member therearound, a first rotating member that is rotatable, a second rotating member that is rotatable coaxially with the winding member and has a smaller resistance to rotation in a predetermined direction than that to rotation in a direction opposite the predetermined direction, and an engaging member. When the first rotating member is subjected to a first torque, the engaging member brings the winding member, the first rotating member, and the second rotating member into engagement with one another, so that the winding member becomes rotatable together with the first rotating member in the predetermined direction. When the first rotating member is subjected to a second torque in a direction opposite that of the first torque, the engaging member releases the engagement, so that the winding member becomes rotatable in the direction opposite the predetermined direction.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a winding device for winding a flexible member.[0003]2. Description of the Related Art[0004]A head-mounted display (HMD) is well known as a display apparatus of head-mounted type. The HMD is widely used because it allows easy viewing of images on a large screen, facilitates viewing of stereoscopic images, and is movable with the user. Well known examples of a mounting mechanism for mounting the HMD include one in which a belt-like flexible member is fastened around the head, and another having a front-head pressing member and a back-head pressing member. In the latter example, the HMD is mounted or removed by moving the back-head pressing member back and forth to fasten or loosen the HMD on the head. Japanese Patent Laid-Open No. 7-333547 discloses a mounting mechanism using a wire. The disclosed mounting mechanism allows the operator to easily mount the HMD while holding the HMD with on...

Claims

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Application Information

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IPC IPC(8): B65H75/44B65H75/38B65H75/30
CPCA43B5/04A43C11/16G02B27/0176A63C9/002B65H75/4431A43C11/165
Inventor YASUDA, TOSHIYUKIISHINO, TOSHIKINAKABAYASHI, TAKAAKISAITO, YOSHIHIROOKUMA, TOSHIYUKITSUJI, MINORU
Owner CANON KK
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