CN2258456Y - Pencil holder with holding groove - Google Patents

Abstract

The utility model relates to a pencil holder with a pen holding and positioning groove which is a helical groove [2] which is arranged at the surface of a pencil holder [1]. The helical angle of the helical groove [2] is 45 DEG to 75 DEG, which is optimal. The groove surface is a smooth circular arc surface. One section of helical groove on the pencil holder is arranged at a user 's middle finger, and a thumb and a forefinger naturally put on the identical helical groove. Now, the three fingers which hold the pencil utilize a helical raising principle and press three point positions with different heights to form a correct posture for holding the pencil. The utility model is favorable for children who learn words to have a correct posture for holding the pencil. Even if the children hold the pencils to write for a long time, the children do not easily tire.

Description

Pencil shaft with the locating slot that holds a pen

The utility model relates to a kind of penholder of pencil, and relates more specifically to a kind of pencil shaft with the locating slot that holds a pen.

Pencil holder in the background technology, by being made up of cylinder, hexagonal prism or tri-prismoid, its surface then is the smooth circular arc camber of stamp or the folding face that a plurality of plane is formed mostly, and the finger that holds a pen in use can at random be placed, be not subjected to any constraint, can not get any help yet.This owing to can not get any help, uses pencil for the children that begin to learn under the condition of " not being subjected to any constraint ", just be difficult to grasp and form a good pen holding posture.

The purpose of this utility model is to be to design a kind of user that can allow, and particularly the children that just learn to write can extremely easily and remain correctly a kind of pencil shaft of pen holding posture in its writing process.

The utility model is realized by following design: a helical groove is set on the surface of described pencil shaft.Adjust the position that pencil shaft is held in the hand during use earlier, Propelling pencil with sharpener in cap bar slightly again, allow its lip-deep one section helicla flute put on Writer's middle finger, then forefinger is taken naturally on the pencil shaft than middle finger on 270 ° of helicla flutes of locating of about rising, thumb is then taken in again than forefinger on 180 ° of helicla flutes of locating of about rising, put forth effort a little, utilize the rising principle of described spiral between the middle finger that hold a pen this moment, thumb and forefinger three refer to, put forth effort on upper and lower 3 of pencil shaft and locate to constitute a correct pen holding posture.

Effect of the present utility model is tangible, when use has the pencil shaft of the locating slot that holds a pen described in the utility model, though the middle finger that the user holds a pen, thumb and forefinger three refer to be on the same helicla flute, but it utilizes the rising principle and the rotation direction of spiral, making described middle finger, thumb and forefinger is not to be on the same cross section of pencil shaft, is in upper and lower three the differing heights places of pencil shaft but divide; Reasonably spiral angle makes described middle finger, thumb and forefinger three refer to be in extremely natural position again, thereby constitutes a correct pen holding posture, writes also indefatigability even hold a pen for a long time.Reasonably helical angle just matches helical groove with the camber of little middle finger in the wrong again, and helical groove and the little middle interphalangeal in the wrong is made up of smooth circular arc camber have also strengthened contact-making surface, makes the long-term fatigue state that can improve middle finger when writing.Anyway the helical groove that multi-turn is formed on the penholder makes rotation pencil, and described middle finger, thumb and forefinger three refer to meet above-mentioned requirement constantly, and pencil rotation slightly then helps the uniform wear of lead for retractable pencil, can guarantee writing quality; The location structure of being made up of multi-circle spiral flow shape groove of the utility model design is even pencil again after the grinding, no matter also pencil is by the length after cutting, still can keep above-mentioned effect not to be subjected to any influence.Therefore, effect of the present utility model is extremely tangible.

Below in conjunction with accompanying drawing embodiment of the present utility model is described, thereby make CONSTRUCTED SPECIFICATION of the present utility model, characteristics, purpose and advantage clearer and more definite.

Fig. 1 is a front view of the present utility model.

Stressed schematic diagram holds a pen when Fig. 2 is to use the utility model.

Among the figure: 1-pencil shaft 2-helical groove 3-middle finger impetus 4-points to force 5-thumb impetus.

The structure of the utility model embodiment now is described in conjunction with the accompanying drawings:

As shown in Figure 1, the described a kind of pencil shaft of present embodiment with the locating slot that holds a pen, its described locating slot that holds a pen is provided in a side of the helical groove 2 on pencil shaft 1 surface.When need are write, the user adjusts the position slightly with pencil shaft in the hand earlier, allow the lip-deep one section helical groove of pencil shaft put on Writer's middle finger, it puts forth effort on middle finger impetus 3 on the pencil shaft as shown in Figure 2, Writer's then thumb and forefinger can be taken naturally on corresponding helical groove on the pencil shaft, promptly put forth effort on forefinger impetus 4 and thumb impetus 5 respectively, and put forth effort just to finish pen holding posture a little.At this moment, though the middle finger that holds a pen, thumb and forefinger three refer on same helicla flute, but not on the same cross section of pencil shaft, but the rising principle of utilizing spiral is put forth effort on 3 of the upper and lower differing heights of pencil shaft respectively and is located, extremely naturally, constitute a correct pen holding posture between three fingers, write also indefatigability even hold a pen for a long time, the children that particularly learn to write more can obtain cultivation and training from the utility model, grasping and to form a good pen holding posture, thereby realize the utility model its intended purposes.As a conversion example of present embodiment, only need to change the helical angle direction of described helical groove 2, its structure is promptly used the utility model applicable to the son of turning left.

In order more reasonably to be adapted to the gesture that holds a pen, the helical angle of described helical groove 2 is good with 45 ° to 75 °, and the groove face of helical groove 2 should be a level and smooth arc surface.The described spiral angle of present embodiment matches the proper camber with little middle finger in the wrong of helical groove, makes described middle finger, thumb and forefinger three refer to be in extremely natural position, constitutes a correct pen holding posture; And the helical groove that smooth circular arc camber is formed and little middle interphalangeal in the wrong have also strengthened contact-making surface, help can improving when writing with pen for a long time the fatigue state of middle finger.Thereby make present embodiment more rationally with desirable.

Claims (3)

1. pencil shaft with the locating slot that holds a pen is characterized in that: the described locating slot that holds a pen is provided in a side of the helical groove [2] on pencil shaft [1] surface.

2. by the described pencil shaft with the locating slot that holds a pen of claim 1, it is characterized in that: the helical angle of described helical groove [2] is good with 45 ° to 75 °.

3. by the described pencil shaft with the locating slot that holds a pen of claim 2, it is characterized in that: the groove face of described helical groove [2] is a level and smooth arc surface.

Images