DE202021105996U1 - Key shank - Google Patents

Abstract

A key shaft having a main body (10), the main body (10) having a drive portion (11), and the main body (10) being provided with a shaft portion (12) connected to the drive portion (11), and wherein the shaft section (12) is essentially rectangular, and wherein the upper and the lower side of the shaft section (12) are each provided with a first surface (121) which is flat, and wherein the two first surfaces (121) run parallel to each other, and wherein the left and the right side of the shaft section (12) are each provided with a second surface (122) which is flat, and wherein the two second surfaces (122) also run parallel to each other, the first Surface (121) and the second surface (122) are perpendicular to one another, characterized in that the main body (10) is provided with a bulge (13), the shaft section (12) between the drive section nitt (11) and the bulge (13) is arranged, and wherein the bulge (13) is substantially spherical or polygonal, and wherein the upper and the lower side of the bulge (13) each provided with a third surface (131) which is arcuate, and wherein the third surface (131) is provided with a plurality of curvatures, and wherein the left and the right side of the bulge (13) are each provided with a fourth surface (132) which is arcuate and wherein the fourth surface (132) is also provided with a plurality of curvatures; - that the main body (10) is provided at the end with a handle section (14) which extends away from the drive section (11), the upper and the lower Side of the handle portion (14) are each provided with a fifth surface (141) which is arcuate, and wherein the fifth surface (141) is provided with a plurality of curvatures, and wherein the left and the right side of the handle f section (14) are each provided with a sixth surface (142) which is arcuate, and wherein the sixth surface (142) is also provided with a plurality of curvatures; - that between the handle section (14) and the bulge (13 ) a first connecting section (15) is provided which is connected to the bulge (13) and the handle section (14), the upper and lower sides of the first connecting section (15) each being provided with a seventh surface (151), which is in the form of a concave arcuate surface, and wherein the seventh surface (151) is tangent to the third surface (131), while the seventh surface (151) is tangent to the fifth surface (141), and the seventh surface (151) with a A plurality of curvatures is provided, and wherein the left and the right side of the first connecting portion (15) are each provided with an eighth surface (152) which is in the form of a concave arc surface, and wherein the eighth surface (152) the vi The eighth surface (132) is tangent, while the eighth surface (152) is not tangent to the sixth surface (142), and the eighth surface (152) is provided with a plurality of curvatures; - that between the bulge (13) and the shaft section (12) a second connecting section (16) is provided which is connected to the bulge (13) and the shaft section (12), and wherein the second connecting section (16) is tangent to the first surface (121) and the second surface (122) the second connecting section (16) being tangential to the third surface (131) and the fourth surface (132); 16), the bulge (13), the first connecting section (15) and the handle section (14), and wherein the drive section (11), the shaft section (12), the second connecting section (16), the bulge (13) , the first connecting section (15) and d he handle portion (14) are integrally formed, and wherein there are different heights and widths between the shaft portion (12), the bulge (13), the handle portion (14) and the first connecting portion (15); - that the distance between the first two Surfaces (121) is a first distance (171) which is the thickness of the shaft section (12), the distance between the two second surfaces (122) being a second distance (172) which is the width of the shaft section (12) and wherein the distance between the most protruding parts of the two third surfaces (131) is a third distance (173), and wherein the distance between the most protruding parts of the two fourth surfaces (132) is a fourth distance (174) and wherein the distance between the most protruding parts of the two fifth surfaces (141) is a fifth distance (175), and wherein the distance between the most protruding parts of the two sixth surfaces (142) is n is the sixth distance (176), and wherein the distance between the deepest parts of the two seventh surfaces (151) is a seventh distance (177), and wherein the distance between the deepest parts of the two eighth surfaces (152) is an eighth distance ( 178); - that the handle section (14) has the greatest thickness near the middle position, and wherein the fifth distance (175) extends near the middle of the handle section (14), and wherein the handle section (14) has the smallest thickness the location farthest from the first connecting portion (15), and wherein the handle portion (14) has a greater width near the first connecting portion (15), and wherein the sixth distance (176) the first connecting portion (15) at is closest, and wherein the handle portion (14) has the smallest width at the point that is remote from the first connecting portion (15); - that the third distance (173) is greater than the fifth distance (175), the fifth e distance (173) is greater than the seventh distance (177), and wherein the seventh distance (177) is greater than the first distance (171); and - that the sixth distance (176) is greater than the fourth distance (174), wherein the fourth distance (174) is greater than the second distance (172), and wherein the second distance (172) is close to the eighth distance (178 ) located.

Description

The invention relates to a key shaft, in particular a key shaft according to the preamble of claim 1.

• Wie aus 3 der Anmeldung TW 1579114 ersichtlich ist, ist der Schlüsselschaft nicht leicht zu halten, da der Abstand zwischen einer Ebene und einem Griff 11, einem ersten Vorsprung 113, einem ersten Drehabschnitt 12 und einem zweiten Drehabschnitt 13 ziemlich klein ist, wenn der Schlüsselschaft auf der Ebene platziert wird, beispielsweise wenn dieser auf einem Schreibtisch platziert wird.

Such a key shaft is from the application TW 1579114 known by the applicant, but this has the following disadvantages:

• How out 3 the registration TW 1579114 As can be seen, the key shaft is not easy to hold because of the distance between a plane and a handle 11 , a first protrusion 113, a first rotating portion 12th and a second rotating section 13th is quite small when the key shaft is placed on the plane, for example when it is placed on a desk.

The invention is based on the object of creating a key shaft which avoids the above-mentioned disadvantages by means of simple measures.

This object is achieved according to the invention by a key shaft which has the features specified in claim 1. Further advantageous developments of the invention emerge from the features of the subclaims.

According to the invention there is provided a key shank having a main body. The main body is provided with a drive portion, a shaft portion, a first surface, a second surface, a bulge, a third surface, a fourth surface, a grip portion, a fifth surface, a sixth surface, a first connecting portion, a seventh surface, an eighth Surface and a second connecting section connected. In order, the main body has the drive section, the shaft section, the second connection section, the bulge, the first connection section and the handle section. The drive section, the shaft section, the second connection section, the bulge, the first connection section and the handle section are formed in one piece. Different heights and widths arise between the shaft section, the bulge, the handle section and the first connecting section.

• 1 eine perspektivische Darstellung eines ersten Ausführungsbeispiels eines erfindungsgemäßen Schlüsselschafts;
• 2 eine Seitenansicht des ersten Ausführungsbeispiels eines erfindungsgemäßen Schlüsselschafts;
• 3 eine Draufsicht auf das erste Ausführungsbeispiel eines erfindungsgemäßen Schlüsselschafts;
• 4 eine perspektivische Explosionsdarstellung eines zweiten Ausführungsbeispiels eines erfindungsgemäßen Schlüsselschafts;
• 5 eine perspektivische Zusammenbaudarstellung eines zweiten Ausführungsbeispiels eines erfindungsgemäßen Schlüsselschafts;
• 6 eine perspektivische Darstellung eines dritten Ausführungsbeispiels eines erfindungsgemäßen Schlüsselschafts;
• 7 eine perspektivische Darstellung eines vierten Ausführungsbeispiels eines erfindungsgemäßen Schlüsselschafts;
• 8 eine perspektivische Darstellung eines fünften Ausführungsbeispiels eines erfindungsgemäßen Schlüsselschafts;
• 9 eine Seitenansicht des fünften Ausführungsbeispiels eines erfindungsgemäßen Schlüsselschafts;
• 10 eine Draufsicht auf das fünfte Ausführungsbeispiel eines erfindungsgemäßen Schlüsselschafts;
• 11 eine perspektivische Explosionsdarstellung eines sechsten Ausführungsbeispiels eines erfindungsgemäßen Schlüsselschafts; und
• 12 eine perspektivische Zusammenbaudarstellung des sechsten Ausführungsbeispiels eines erfindungsgemäßen Schlüsselschafts.

The invention and its configurations are explained in more detail below with reference to the drawing. In the drawing shows:

• 1 a perspective view of a first embodiment of a key shaft according to the invention;
• 2 a side view of the first embodiment of a key shaft according to the invention;
• 3 a plan view of the first embodiment of a key shaft according to the invention;
• 4th a perspective exploded view of a second embodiment of a key shaft according to the invention;
• 5 a perspective assembly view of a second embodiment of a key shaft according to the invention;
• 6th a perspective view of a third embodiment of a key shaft according to the invention;
• 7th a perspective view of a fourth embodiment of a key shaft according to the invention;
• 8th a perspective view of a fifth embodiment of a key shaft according to the invention;
• 9 a side view of the fifth embodiment of a key shaft according to the invention;
• 10 a plan view of the fifth embodiment of a key shaft according to the invention;
• 11 a perspective exploded view of a sixth embodiment of a key shaft according to the invention; and
• 12th a perspective assembly view of the sixth embodiment of a key shaft according to the invention.

How out 1 until 3 can be seen, a key shaft according to the invention has a main body 10 on, the one drive section 11 which is designed as a ratchet structure that allows forward and reverse rotation. The main body 10 is with a shaft portion 12th provided with the drive section 11 connected is. The shaft section 12th is essentially rectangular. The upper and lower sides of the shaft section 12th are each with a first surface 121 provided, which is flat. The first two surfaces 121 run parallel to each other. The left and right sides of the shaft section 12th are each with a second surface 122 provided, which is flat. The second two surfaces 122 also run parallel to each other, with the first surface 121 and the second face 122 stand perpendicular to each other.

The main body 10 is with a bulge 13th provided, the shaft portion 12th between the drive section 11 and the bulge 13th is arranged. The bulge 13th is essentially spherical or polygonal. The top and bottom of the bulge 13th are each with a third surface 131 provided, which is arcuate. The third area 131 is provided with a plurality of curvatures. The left and right sides of the bulge 13th are each with a fourth surface 132 provided, which is arcuate. The fourth area 132 is also provided with a plurality of curvatures.

The main body 10 is at the end with a handle section 14th provided by the drive section 11 is absent. The top and bottom of the handle section 14th are each with a fifth surface 141 provided, which is arcuate. The fifth surface 141 is provided with a plurality of curvatures. The left and right sides of the handle section 14th are each with a sixth surface 142 provided, which is arcuate. The sixth surface 142 is also provided with a plurality of curvatures.

Between the handle section 14th and the bulge 13th is a first connection section 15th provided the one with the bulge 13th and the handle portion 14th connected is. The upper and lower sides of the first connecting section 15th are each with a seventh area 151 provided, which is formed in the form of a concave arcuate surface. The seventh surface 151 touches the third surface 131 , being the seventh face 151 the fifth face 141 affects. The seventh surface 151 is provided with a plurality of curvatures. The left and right sides of the first connecting section 15th are each with an eighth surface 152 provided, which is formed in the form of a concave arcuate surface. The eighth surface 152 touches the fourth surface 132 , being the eighth face 152 the sixth face 142 not affected. The eighth surface 152 is provided with a plurality of curvatures.

Between the bulge 13th and the shaft portion 12th is a second connection section 16 intended. The second connection section 16 is with the bulge 13th and the shaft portion 12th connected. The second connection section 16 is tangent to the first surface 121 and the second face 122 , the second connecting section 16 to the third face 131 and the fourth face 132 is tangential.

The main body 10 is sequential with the drive section 11 , the shaft section 12th , the second connection section 16 , the bulge 13th , the first connection section 15th and the handle portion 14th Mistake. The drive section 11 , the shaft section 12th , the second connecting section 16 who have favourited bulge 13th , the first connection section 15th and the handle portion 14th are formed in one piece. Between the bulge 13th , the handle section 14th and the first connection section 15th exist of different heights and widths.

The distance between the first two faces 121 is a first distance 171 , which is the thickness of the shaft portion 12th is. The distance between the two second faces 122 is a second distance 172 which is the width of the shaft section 12th is. The distance between the most protruding parts of the two third surfaces 131 is a third distance 173 . The distance between the most protruding parts of the two fourth surfaces 132 is a fourth distance 174 . The distance between the most protruding parts of the two fifth surfaces 141 is a fifth distance 175 . The distance between the most protruding parts of the two sixth surfaces 142 is a sixth distance 176 . The distance between the deepest parts of the two seventh surfaces 151 is a seventh distance 177 . The distance between the deepest parts of the two eighth surfaces 152 is an eighth distance 178 .

The handle section 14th has the greatest thickness near the middle position, that is, the fifth distance 175 extends near the center of the handle section 14th . The handle section 14th has the smallest thickness at the point furthest from the first connecting section 15th away. The handle section 14th has a greater width near the first connecting portion 15th on, that is, the sixth distance 176 is the first connection section 15th closest. The handle section 14th has the smallest width at the point from the first connection section 15th is absent.

The third distance 173 is greater than the fifth distance 175 , the fifth distance 173 is greater than the seventh distance 177 and the seventh distance 177 is greater than the first distance 171 .

The third distance 173 is 2 to 3 times the first space 171 , preferably 2.3 to 2.7 times the first distance 171 and more preferably 2.5 times the first distance 171 .

The third distance 173 is 1.5 to 2.5 times the seventh distance 177 , preferably 1.7 to 2.3 times the seventh distance 177 and more preferably about twice the seventh distance 177 .

The fifth distance 175 is 1.5 to 2.5 times the first distance 171 and preferably about twice the first distance 171 .

The sixth distance 176 is greater than the fourth distance 174 , the fourth distance 174 is greater than the second distance 172 , the second distance 172 is close to the eighth distance 178 and the fourth distance 174 is 1.3 to 2 times the second distance 172 . The fourth distance is preferably 174 about 1.6 times the second distance 172 .

The bulge 13th is with at least one label 18th which can be used to show the size, trademark, brand or tool type name, etc., with the caption 18th can be concave or convex.

Referring to 4th and 5 is the key shaft according to the invention with a push-on sleeve 20th made of plastic, rubber material, or various soft body materials. The push-on sleeve 20th is with a plug-in section 21 provided that on the handle portion 14th is attachable. The plug-in section 21 is shape-wise to the handle portion 14th customized. The plug-in section 21 and the handle portion 14th are made of different materials and designed with different colors. The plug-in section 21 is formed corrugated on the outer circumference, which makes it easier for the operator to remove the surface of the plug-in section 21 to hold with the hand.

With reference to 6th is the bulge 13th circumferentially with several first levels 133 provided, which are flat.

Referring to 7th is the fifth area 141 the lower side of the handle section 14th with a recess 143 provided, which is formed essentially as a recessed arcuate groove.

With reference to the 8th until 10 can the bulge 13th be designed in the form of a polygonal diamond, the handle portion 14th is provided with a through hole penetrating through the handle portion 14th extends through and can be used for hanging or receiving the key shaft according to the invention for the user.

With reference to 11 and 12th are two recesses 143 present in relation to the handle portion 14th are symmetrical. Between the two recesses 143 is a through opening 144 in the form of a through hole or a through slot in which two insert parts 30th are housed. The two insert parts 30th reach into the respective recesses 143 one. The insert part 30th and the recess 143 can be connected with an adhesive. The insert part 30th is shape-wise to the recess 143 educated. The insert part 30th is with a head start 31 provided, which is in the through opening 144 is located. The end faces of the protrusions 31 of the two insert parts 30th stand in the passage opening 144 in contact. The end faces of the two protrusions 31 can be connected with glue.

1. 1. Zwischen dem Schaftabschnitt 12, der Ausbuchtung 13 und dem Griffabschnitt 14 sind unterschiedliche Höhen und Breiten ausgebildet, wobei der Ausbuchtung 13 die maximale Höhe und Breite hat. Wenn der Hauptkörper 10 auf eine ebene Fläche gelegt wird, liegen der Schaftabschnitt 12 und der Griffabschnitt 14 gegen die ebene Fläche an, wobei zwischen dem Schaftabschnitt 12 bzw. dem ersten Verbindungsabschnitt 15 und der ebenen Fläche ein Spalt gebildet wird. Damit ist der erfindungsgemäße Schlüsselschaft durch den Schaftabschnitt 12 und den ersten Verbindungsabschnitt 15 leichter aufzunehmen.
2. 2. Wenn der Benutzer den Griffabschnitt 14 mit seiner Hand hält, kann er seine Finger nach seinen persönlichen Bedürfnissen gegen den ersten Verbindungsabschnitt 15 drücken. Da die siebte Fläche 151 und die achte Fläche 152 konkave Bogenflächen sind, ist es förderlicher, den Hauptkörper 10 zu drehen. Der Hauptkörper 10 hat zwei Stellen, an denen sich die Finger lehnen können und die beide diesen die Möglichkeit bieten, den Hauptkörper 10 zu drehen.
3. 3. Wenn der Hauptkörper 10 gehalten wird, kann die Ausbuchtung 13 auch zum Anlehnen der Finger verwendet werden, wodurch ein besserer Griff gewährleistet ist.
4. 4. Wenn der erfindungsgemäße Schlüsselschaft genommen wird, kann die Ausbuchtung 13 unmittelbar von der Handfläche gehalten werden, wodurch ein besserer Griff gewährleistet ist.
5. 5. Der Schaftabschnitt 12, die Ausbuchtung 13, der Griffabschnitt 14 und der erste Verbindungsabschnitt 15 weist unterschiedliche Höhen und Breiten auf. Das heißt, es gibt mindestens drei unterschiedliche Höhen und Breiten, wodurch der Hauptkörper 10 dreidimensional wirkt.
6. 6. Der Hauptkörper 10 ist mit einer Beschriftung 18 versehen, die ein Warenzeichen, ein Werkzeugtyp oder eine Größe des erfindungsgemäßen Schlüsselschafts sein kann.
7. 7. Wie in 4 und 5 gezeigt, ist der erfindungsgemäße Schlüsselschaft mit der Aufsteckhülse 20 versehen. Mit der Aufsteckhülse 20 ist es für den Benutzer bequemer, den Griffabschnitt 14 mit der Hand zu halten. Außerdem erfüllt die Aufsteckhülse 20 die rutschfeste Wirkung.
8. 8. Wie in 7 gezeigt, ist der Griffabschnitt 14 mit der Aussparung 143 versehen, gegen die die Finger anliegen können. Damit wird eine bessere Griffigkeit des Hauptkörpers 10 beim Bedienen erreicht. Außerdem wird das Gewicht des Hauptkörpers 10 reduziert.
9. 9. Wie in 6 gezeigt, ist die Ausbuchtung 13 mit mehreren ersten Ebenen (133) versehen. Durch die mehreren ersten Ebenen 133 lässt sich der Hauptkörper nicht leicht rollen, wenn der erfindungsgemäße Schlüsselschaft auf einer flachen Oberfläche platziert wird. Aufgrund der Ausbuchtung 13 rutscht der erfindungsgemäße Schlüsselschaft nicht leicht ab.

In summary, the following advantages, for example, can be achieved with the key shaft according to the invention:

1. 1. Between the shaft section 12th , the bulge 13th and the handle portion 14th are of different heights and widths, with the bulge 13th has the maximum height and width. When the main body 10 is placed on a flat surface, lie the shaft section 12th and the handle portion 14th against the flat surface, with between the shaft portion 12th or the first connection section 15th and a gap is formed in the flat surface. The key shank according to the invention is thus through the shank section 12th and the first connection section 15th easier to pick up.
2. 2. When the user touches the handle section 14th with his hand, he can use his fingers against the first connection section according to his personal needs 15th to press. Because the seventh face 151 and the eighth surface 152 are concave arc surfaces, it is more conducive to the main body 10 to turn. The main body 10 has two places where the fingers can lean, and both of which give them the opportunity to use the main body 10 to turn.
3. 3. When the main body 10 is held, the bulge can 13th Can also be used to lean on your fingers, which ensures a better grip.
4. 4. When the key shaft according to the invention is taken, the bulge 13th can be held directly in the palm of the hand, which ensures a better grip.
5. 5. The shaft section 12th who have favourited bulge 13th , the handle section 14th and the first connection section 15th has different heights and widths. That said, there are at least three different heights and widths that make the main body 10 looks three-dimensional.
6. 6. The main body 10 is with a label 18th provided, which can be a trademark, a tool type or a size of the key shaft according to the invention.
7. 7. As in 4th and 5 shown is the key shaft according to the invention with the push-on sleeve 20th Mistake. With the push-on sleeve 20th it is more convenient for the user to use the handle portion 14th to hold with the hand. In addition, the push-on sleeve fulfills 20th the non-slip effect.
8. 8. As in 7th shown is the handle portion 14th with the recess 143 provided against which the fingers can rest. This will give the main body a better grip 10 reached when operating. It also becomes the weight of the main body 10 reduced.
9. 9. As in 6th shown is the bulge 13th with several first levels ( 133 ) Mistake. Through the first several levels 133 the main body does not roll easily when the key shaft of the present invention is placed on a flat surface. Because of the bulge 13th the key shaft according to the invention does not slip off easily.

List of reference symbols

10

Main body

11th

Drive section

12th

Shaft section

121

first surface

122

second face

13th

bulge

131

third area

132

fourth face

133

first floor

14th

Handle section

141

fifth surface

142

sixth surface

143

Recess

144

Through opening

15th

first connection section

151

seventh surface

152

eighth surface

16

second connection section

171

first distance

172

second distance

173

third distance

174

fourth distance

175

fifth distance

176

sixth distance

177

seventh distance

178

eighth distance

18th

labeling

20th

Push-on sleeve

21

Plug-in section

30th

Insert part

31

head Start

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• TW 1579114 [0002]

Claims (12)

A key shaft having a main body (10), the main body (10) having a drive portion (11), and the main body (10) being provided with a shaft portion (12) connected to the drive portion (11), and wherein the shaft section (12) is essentially rectangular, and wherein the upper and the lower side of the shaft section (12) are each provided with a first surface (121) which is flat, and wherein the two first surfaces (121) run parallel to each other, and wherein the left and the right side of the shaft section (12) are each provided with a second surface (122) which is flat, and wherein the two second surfaces (122) also run parallel to each other, the first Surface (121) and the second surface (122) are perpendicular to one another, characterized in that the main body (10) is provided with a bulge (13), the shaft section (12) between the drive abs The recess (11) and the bulge (13) are arranged, and the bulge (13) is essentially spherical or polygonal, and the upper and lower sides of the bulge (13) each provided with a third surface (131) which is arcuate, and wherein the third surface (131) is provided with a plurality of curvatures, and wherein the left and the right side of the bulge (13) are each provided with a fourth surface (132) which is arcuate and wherein the fourth surface (132) is also provided with a plurality of curvatures; - That the main body (10) is provided at the end with a grip section (14) which lies away from the drive section (11), the upper and the lower side of the grip section (14) each being provided with a fifth surface (141) which is arcuate is formed, and wherein the fifth surface (141) is provided with a plurality of curvatures, and wherein the left and the right side of the handle portion (14) are each provided with a sixth surface (142) which is arcuate, and wherein the sixth surface (142) is also provided with a plurality of curvatures; - That between the handle section (14) and the bulge (13) a first connecting section (15) is provided which is connected to the bulge (13) and the handle section (14), the upper and the lower side of the first connecting section ( 15) are each provided with a seventh surface (151), which is designed in the form of a concave arcuate surface, and wherein the seventh surface (151) is tangent to the third surface (131), while the seventh surface (151) the fifth surface (141 ) tangent, and wherein the seventh surface (151) is provided with a plurality of curvatures, and wherein the left and the right side of the first connecting portion (15) are each provided with an eighth surface (152) in the form of a concave arcuate surface is formed, and wherein the eighth surface (152) is tangent to the fourth surface (132), while the eighth surface (152) is not tangent to the sixth surface (142), and wherein the eighth surface (152) is provided with a plurality of curvatures ; - That between the bulge (13) and the shaft section (12) a second connecting section (16) is provided, which is connected to the bulging (13) and the shaft section (12), and wherein the second connecting section (16) is the first surface (121) and tangent to the second surface (122), the second connecting portion (16) being tangential to the third surface (131) and the fourth surface (132); - That the main body (10) is successively provided with the drive section (11), the shaft section (12), the second connection section (16), the bulge (13), the first connection section (15) and the handle section (14), and wherein the drive section (11), the shaft section (12), the second connecting section (16), the bulge (13), the first connecting section (15) and the handle section (14) are formed in one piece, and wherein between the shaft section (12) , the bulge (13), the handle portion (14) and the first connecting portion (15) are of different heights and widths; - That the distance between the two first surfaces (121) is a first distance (171) which is the thickness of the shaft section (12), the distance between the two second surfaces (122) being a second distance (172) which is the width of the shaft portion (12), and wherein the distance between the most protruding parts of the two third surfaces (131) is a third distance (173), and wherein the distance between the most protruding parts of the two fourth surfaces (132 ) is a fourth distance (174), and wherein the distance between the most protruding parts of the two fifth surfaces (141) is a fifth distance (175), and wherein the distance between the most protruding parts of the two sixth surfaces (142 ) is a sixth distance (176), and wherein the distance between the deepest parts of the two seventh surfaces (151) is a seventh distance (177), and wherein the distance between the deepest parts of the two eighth surfaces (152) is an eighth distance (178); - that the handle section (14) has the greatest thickness near the middle position, and wherein the fifth distance (175) extends near the middle of the handle section (14), and wherein the handle section (14) has the smallest thickness at the point, which is furthest from the first connecting portion (15), and wherein the handle portion (14) has a greater width near the first connecting portion (15), and wherein the sixth distance (176) is closest to the first connecting portion (15), and wherein the handle portion (14) the has the smallest width at the point which is remote from the first connecting portion (15); - That the third distance (173) is greater than the fifth distance (175), the fifth distance (173) being greater than the seventh distance (177), and the seventh distance (177) being greater than the first distance ( 171); and - that the sixth distance (176) is greater than the fourth distance (174), wherein the fourth distance (174) is greater than the second distance (172), and wherein the second distance (172) is close to the eighth distance (178 ) located. Key shaft after Claim 1 , characterized in that the drive section (11) is designed as a ratchet structure and allows forward and reverse rotation. Key shaft after Claim 1 or 2 , characterized in that the third distance (173) is 2 to 3 times the first distance (171), the third distance (173) being 2.3 to 2.7 times the first distance (171) and wherein the third distance (173) corresponds to approximately 2.5 times the first distance (171). Key shaft after Claim 1 or 2 , characterized in that the third distance (173) is 1.5 to 2.5 times the seventh distance (177), preferably 1.7 to 2.3 times the seventh distance (177) and particularly preferably is about twice the seventh distance (177). Key shaft after Claim 1 or 2 , characterized in that the fifth distance (175) is 1.5 to 2.5 times the first distance (171) and preferably approximately twice the first distance (171). Key shaft after Claim 1 or 2 , characterized in that the fourth distance (174) is 1.3 to 2 times the second distance (172) and preferably approximately 1.6 times the second distance (172). Key shaft after Claim 1 or 2 , characterized in that the bulge (13) is provided with at least one lettering (18) which can be used to show the size, the trademark, the brand or the tool type name etc., the lettering (18) being concave or can be convex. Key shaft after Claim 1 or 2 Furthermore, with a push-on sleeve (20) which is designed as a thin shell and is made of plastic, rubber material or various soft body materials, the push-on sleeve (20) being provided with a plug-in section (21) which can be plugged onto the handle section (14) , and wherein the plug section (21) is adapted in shape to the handle section (14), and wherein the plug section (21) and the handle section (14) are made of different materials and designed with different colors, and the plug section (21) on The outer circumference is corrugated, which makes it easier for the operator to hold the surface of the plug-in section (21) with his hand. Key shaft after Claim 1 or 2 , characterized in that the bulge (13) is provided on the circumference with a plurality of first planes (133) which are flat. Key shaft after Claim 1 or 2 , characterized in that the fifth surface (141) of the lower side of the handle section (14) is provided with a recess (143) which is essentially designed as a recessed arcuate groove. Key shaft after Claim 1 or 2 , characterized in that the bulge (13) is designed in the form of a polygonal rhombus, the handle section (14) being provided with a through hole which runs through the handle section 14. Key shaft after Claim 1 or 2 , characterized in that there are two recesses (143) which are symmetrical with respect to the handle section (14), a through opening (144) in the form of a through hole or a through slot being formed between the two recesses (143), in of the two insert parts (30) are accommodated, and wherein the two insert parts (30) engage in the respective recesses (143), and wherein the insert part (30) and the recess (143) can be connected with an adhesive, and wherein the insert part (30) is formed on the recess (143) in terms of shape, and wherein the insert part (30) is provided with a projection (31) which is located in the through opening (144), and wherein the end surfaces of the projections (31) of the two Insert parts (30) are in contact in the through opening (144), and wherein the end faces of the two projections (31) can be connected with adhesive.

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