Coating implements with material supply – Solid material for rubbing contact or support therefor – Including means to advance material
Patent
1994-03-30
1996-11-26
Bratlie, Steven A.
Coating implements with material supply
Solid material for rubbing contact or support therefor
Including means to advance material
401 84, B43K 2106, B43K 2404
Patent
active
055778500
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD OF THE INVENTION
This invention relates to a device for feeding a longitudinal rodlike body, such as a lipstick, a crayon, a pastel and an eraser, and more particularly to a rodlike body feeding device capable of extending and retracting a rodlike body from and into a case easily, and preventing the unintentional retraction of the rodlike body when in use.
BACKGROUND OF THE INVENTION
Japanese Patent Publication No. 38239/1992 discloses a rodlike body feeding device consisting of a tubular shaft provided with a slit extending in the axial direction of the tubular shaft, and a plurality of engageable portions provided in the same axial direction; and a slider provided slidably in the tubular shaft and having a rodlike body-fastening portion.
This prior art publication is directed to a holder for a rodlike body, and the holder has a slider provided in the tubular shaft slidably in the axial direction, operable via a push-button, and fixable in an engagement position. The slider, mainly together with a tightening member, other than the push-button, constitutes a two-arm lever, and the two-arm lever can be turned around a common pivot. In order to convert a pressing force, which is exerted on a receiving member in the axial direction thereof, into a radially acting force and to transmit the converted force, the receiving member and the tightening member are movably connected via the above-mentioned pivot. The tubular shaft is provided with a tightened surface or a locking hole and a guide slit. The guide slit is so provided as to face to the tightened surface or locking hole. The object of adopting such a structure is to provide a holder for a rodlike member, the holder having a simple structure, such that, for example, the device can be easily operated by applying a pressure to the push-button in the axial and/or radial direction, and the rodlike member to be supported can be supported when an axial force is applied to the rodlike member.
However, in order to retract a rodlike body into the conventional rodlike body feeding device, it is necessary that the push-button (knob) be pressed radially inwardly toward the axis of the shaft (tube) and then moved in the axial direction while releasing the lock for preventing the retraction. Namely, the operability of this type of device needs improvement.
SUMMARY OF THE INVENTION
An object of the present invention is, in view of the complicated operation of the conventional device of this kind, to provide a rodlike body feeding device in which the rodlike body can be easily retracted, but which is not retracted during the use of the device.
Another object of the present invention is to provide an improved rodlike feeding body device capable of feeding a rodlike body comfortably with a light "click" sound even after the device has been used for a long time.
The present invention has been developed with a view to attaining these objects, and is directed to a rodlike body feeding device comprising a tubular shaft provided with a slit extending in the axial direction of the tubular shaft, and a plurality of locking portions arranged in the same axial direction, and a slider provided slidably in the tubular shaft and having a rodlike body fastening portion. The slider comprises a rodlike body fastening portion, a retraction preventing portion and a slider body in such a manner that the fastening portion and retraction preventing portion are connected with each other by an elastic body, and similarly the retraction preventing portion and slider body are connected with each other by an elastic member.
Since the rodlike fastening portion and retraction preventing portion are connected together, and the retraction preventing portion and slider body are connected together by the elastic members, respectively, the retraction preventing portion and the locking portions are not engaged while the rodlike body is being slid out or retracted, so that the feeding and retraction of the rodlike body can be accomplished by only the application of an axial force. When
REFERENCES:
patent: 1097238 (1914-05-01), Krell
patent: 2259133 (1941-10-01), Harper
patent: 2314777 (1943-03-01), Farrington
patent: 3756727 (1973-09-01), Gallagher
Bratlie Steven A.
Pentel Kabushiki Kaisha
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