Surgery: kinesitherapy – Kinesitherapy – Device with applicator having specific movement
Patent
1998-12-04
2000-05-02
DeMille, Danton D.
Surgery: kinesitherapy
Kinesitherapy
Device with applicator having specific movement
601100, 601102, 601116, A61H 1500
Patent
active
060567082
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELDS
The present invention relates to a massaging device of a type incorporating a massaging mechanism in a chair's backrest or in a bed.
BACKGROUND ART
In a massaging device of the type incorporating a massaging mechanism in a chair's backrest or in a bed, particularly in the massaging device in which an applicator moves along the backrest to give a massaging action, the massaging action is transmitted from the applicator to a user through a cover sheet which covers the backrest or bed in order to avoid direct contact of the applicator to the user's body. In this case, the cover sheet is conventionally fastened to a frame of the backrest or the bed by driving staples through the cover into the frame. However, in addition to that the fastening work necessitates a special tool for driving the staples, the frame is required to have a thickness greater than the length of the staples in order to safely drive the staples and assure a desired fastening strength. Further, the replacement of the cover sheet involves an awkward work of removing the staples.
The present invention has been accomplished in view of the above and provides a massaging device which is capable of attaching and replacing a cover sheet in a convenient manner, while using the frame of a thin and light weight construction.
DISCLOSURE OF THE INVENTION
A massaging device of the present invention includes a frame which defines a supporting structure which supports a user's body and incorporates a mechanism of actuating an applicator for applying a massaging action to the user's body. The frame includes a pair of side members defining therebetween an opening within which the applicator is disposed. A cover sheet stretches over the opening and connected at opposite ends thereof to the side members respectively such that the applicator applies the massaging action to the user's body through the cover sheet. The cover sheet is bifurcated at each of its opposite sides to have a pair of outer and inner extensions provided respectively with outer and inner catches. Each of the side members is formed on its rear surface with a pair of outer and inner hooks for detachable engagement respectively with the outer and inner catches at each of the opposite sides of the sheet cover. The inner and outer hooks are located respectively at an inner end of the rear surface of the side member adjacent to the opening and at the outer end of the rear surface of the side member remote from the opening, so that only the outer extension extends across a front surface of the side member when the outer and inner catches are engaged respectively with the outer and inner hooks.
Since the cover sheet covering the opening of the frame is detachably connected to the side members of the frame by the outer and inner catches provided at the opposite ends of the cover sheet, attachment and replacement of the cover sheet can be easily made without the necessity of a tool. Further, since the outer and inner catches are engaged respectively with the outer and inner hooks formed on the rear surface of the side member at positions remote and adjacent to the opening, the ends of the cover sheet can be held firmly at the inner catches even when the cover sheet is caused to flex forwardly upon receiving a force of the applicator during the massaging action. Whereby, the outer extension leading to the outer catches can be prevented from being pulled away from the front surface of the side member of the frame.
Preferably, the cover sheet is formed with a sag extending in parallel with the side member so that the sag can eliminate an excess tension from being developed in the cover sheet which would otherwise develop due to a force exerted by the applicator.
These and still other advantages of the present invention will become apparent from the following description of the preferred embodiment when taken in conjunction with the attached drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side view of a massaging device in accordance with one embodiment of the present
REFERENCES:
patent: 4886051 (1989-12-01), White
patent: 4915448 (1990-04-01), Morgenstern
patent: 5836645 (1998-11-01), Sakaue et al.
Fukutani Makoto
Sayama Naoto
DeMille Danton D.
Matsushita Electric & Works Ltd.
TS Tech Co. Ltd.
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