Pen shell with elastic supporting seat

Abstract

The utility model discloses a pen shell with an elastic supporting seat, which comprises a pen holder and a supporting seat connected to the front end of the pen holder, a containing cavity used for containing a refill is formed between the pen holder and the supporting seat, the front end of the supporting seat comprises at least two elastic claw arms extending forwards, and the elastic claw arms are circumferentially distributed along the axis of the pen shell. The front ends of the elastic claw arms surround to form an open hole for the front end of the refill to penetrate through, and gaps connected with the open hole are formed between every two adjacent elastic claw arms in the circumferential direction of the axis of the pen shell at intervals. According to the pen shell with the elastic supporting seat, the elastic deformation effect of the front end of the pen refill can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of writing tools, in particular to a pen case with an elastic support seat. Background Art

[0002] At present, existing ballpoint pens, gel pens, signature pens and other types of pens generally include a pen case and a refill arranged in the pen case. The refill includes a writing part located at the front end and an ink storage tube connected to the rear end of the writing part. The writing part generally includes an ink outlet core and a connecting seat. The ink outlet core and the ink storage tube are connected through the connecting seat. The connecting seat supports the ink outlet core and transports ink. The connecting seat is usually hard and not easy to deform during writing, so the writing is relatively stiff. The pen case generally includes a cavity for accommodating the refill. The front end of the pen case includes a conical support seat. The front end of the support seat is provided with a through hole for the front end of the connecting seat and the ink outlet core to extend forward. The support seat supports and limits the connecting seat of the refill.

[0003] The Chinese utility model patent discloses an elastic pen core (CN201195441Y), which includes a ball, a ball seat, an ink tube and a connecting tube (i.e., a connecting seat) connecting the ball seat and the ink tube. The connecting tube is elastic and can be made of various elastic materials such as rubber and tendon.

[0004] In this way, the pen core is used in conjunction with the elastic pen holder, and when writing, the pen tip ball will elastically deviate from the central axis of the pen core to a certain extent, and the contact friction between the pen tip ball and paper becomes gentle, thereby making the writing feel more comfortable, the ink flow more smooth, reducing writing fatigue, and having a simple structure.

[0005] The above patent provides a pen core with a connection seat made of elastic material, which deforms according to the writing pressure when writing, and can improve the writing effect of the pen. However, the pen core shown in the above patent needs to be installed in the pen case for use, and the support seat of the traditional pen case has great restrictions on the deformation of the front end of the pen core, and cannot well reflect the deformation effect of the pen core, especially there is a small space between the through hole at the front end of the pen case and the connection seat, and the front end connection seat of the pen core can only deform within the range of the through hole, which greatly limits the use effect of the above-mentioned pen core. Utility Model Content

[0006] The utility model provides a pen case with an elastic support seat, which can improve the elastic deformation effect of the front end of the pen core.

[0007] The utility model discloses a pen case with an elastic support seat, comprising a pen holder and a support seat connected to the front end of the pen holder, a cavity for accommodating a pen core formed between the pen holder and the support seat, the pen holder is mainly used for holding by hand and accommodating the ink storage tube part of the pen core, the support seat is mainly used for supporting in cooperation with a connecting seat located at the front end of the pen core, the front end of the support seat comprises at least two elastic claw arms extending forward, the elastic claw arms are distributed and arranged circumferentially along the axis of the pen case, an opening for the front end of the pen core to pass through is formed around the front ends of the elastic claw arms, the opening can be used for the connecting seat of the pen core to pass through, a gap connected to the opening is arranged between two elastic claw arms adjacent to each other in the circumferential direction of the axis of the pen case, the setting of the gap prevents the two elastic claw arms adjacent to each other in the circumferential direction from interfering with each other when deformed, thereby improving the deformation effect of the elastic claw arms.

[0008] Furthermore, the elastic claw arms are divided into two groups, and the two groups of elastic claw arms are distributed along the first radial direction of the axis of the pen shell. The gap is formed between the two sides corresponding to the circumferential direction of the two groups of elastic claw arms, so that the two groups of elastic claw arms will not interfere with each other when deformed. The two groups of elastic claw arms have different lengths. When writing and applying force in two different directions of the first radial direction, the two groups of elastic claw arms can provide different support effects for the front end of the pen core.

[0009] Since the traditional fountain pen usually includes a nib formed by processing a piece of metal sheet, the metal sheet includes a middle seam extending to the front end of the nib, the middle seam divides the front end of the nib into two halves, and uses capillary phenomenon to drain ink so that the pen tip works normally. The nib of the fountain pen has different writing feel and writing effect when writing in different directions. When writing in the front and back directions of the metal sheet, the nib of the fountain pen will be relatively soft and easy to deform, and the written line will appear thicker. When writing in the side direction of the metal sheet, the nib of the fountain pen will be relatively hard and not easy to deform, and the written line will appear thinner. Based on this characteristic of the fountain pen, the lines written by the fountain pen are more diverse and rich in posture compared with other types of pens, and are particularly suitable for writing fonts, and the written fonts have the beauty of ups and downs. However, the pen core in the prior art has the same deformation effect when writing in different directions, and cannot produce a writing effect similar to that of a fountain pen. In the utility model, two groups of elastic claw arms of different lengths cooperate with the front end of the pen core for support. When writing and being stressed in two different directions along the first radial direction of the pen shell axis, different support effects can be provided for the deformation of the pen core connection seat, thereby providing different writing elasticities. The relatively long elastic claw arm has a closer distance between its front end and the front end of the pen core, which can provide a better support effect. The connection seat of the pen core is relatively difficult to deform when writing in the direction corresponding to the longer elastic claw arm supporting the stress. The relatively short elastic claw arm has a relatively far distance between its front end and the front end of the pen core, and the support effect it provides is relatively weak. The connection seat of the pen core is more likely to deform when writing in the direction corresponding to the shorter elastic claw arm supporting the stress. This enables the pen of the utility model to produce a writing effect similar to that of a fountain pen when writing, and can write lines similar to those written by a fountain pen. In addition, the user can clearly observe the different lengths of the two groups of elastic claw arms, which is convenient for the user to identify the writing direction.

[0010] Furthermore, each group of elastic claw arms includes two elastic claw arms of the same length, and the two elastic claw arms of each group of elastic claw arms are distributed along the second radial direction of the axis of the pen shell, and the first radial direction and the second radial direction are perpendicular. When writing in two different directions along the second radial direction, the same deformation effect can be provided, and by cooperating with the above structure, the similarity with the writing effect of the fountain pen is further improved.

[0011] Furthermore, the elastic claw arm is arranged at an angle, and the distance between the front end of the elastic claw arm and the axis of the pen shell is smaller than the distance between the rear end of the elastic claw arm and the axis of the pen shell. The front end of the elastic claw arm is arranged close to the front end of the pen core, which can improve the supporting effect of the elastic claw arm on the front end of the pen core.

[0012] Furthermore, a groove is provided on the inner side of the front end of the elastic claw arm, and the opening is formed by a combination of the grooves at the front ends of all the elastic claw arms. The setting of the groove can improve the writing effect similar to steel, make the force more uniform, and prevent the elastic claw arm and the front end of the pen core from slipping, which can improve the matching effect.

[0013] Furthermore, a positioning structure is provided on the inner side of the pen holder or the support seat to cooperate with the pen core to form circumferential positioning. For pen cores with different elastic deformation effects in different writing directions, the positioning structure can form circumferential positioning cooperation with them, so that the orientations of the pen core and the pen shell can be in corresponding positions, thereby improving the cooperation effect with such pen cores.

[0014] Further, the positioning structure includes an annular convex wall arranged on the inner side of the pen barrel or the inner side of the support seat, the annular convex wall includes an inner hole cooperated with the pen core and an annular end face arranged at the rear of the corresponding pen barrel, a positioning slide groove connected to the inner hole is opened on the annular convex wall, the positioning slide groove is extended along the axial direction of the pen barrel, the front end of the positioning slide groove is closed, and an insertion port connected to the rear end of the positioning slide groove is arranged on the annular end face of the annular convex wall, which can cooperate with the positioning protrusion on the pen core to achieve circumferential positioning, and the positioning protrusion on the pen core can be inserted into the positioning slide groove through the insertion port when the pen core is inserted into the pen shell along the axial direction, and the inner walls on both sides of the positioning slide groove cooperate with the positioning protrusion to limit, so as to prevent the pen core from rotating relative to the pen shell.

[0015] Furthermore, the annular end surface of the annular convex wall is inclined, and the insertion port is located at the position of the annular end surface of the annular convex wall closest to the front of the pen housing. The annular end surface of the inclined annular convex wall can be used to guide the positioning protrusion on the pen core to be inserted into the insertion port, which is convenient for installation.

[0016] Furthermore, the positioning structure is arranged at the front end of the inner side of the pen shaft or the rear end of the inner side of the support seat, and cooperates with the connection seat of the pen core for positioning. The positioning structure is arranged at the front end of the inner side of the pen shaft or the rear end of the inner side of the support seat, and the distance between the front ends of the pen core is reduced, so that the front end of the pen core is not easy to twist when writing, and the circumferential positioning effect of the pen core can be improved. In addition, for the pen core, its matching positioning structure can also be arranged at the connection seat of the pen core, which is convenient for the production and processing of the matching pen core.

[0017] The beneficial effect of the utility model is that the elastic claw arm arranged at the front end of the support seat cooperates with the connecting seat at the front end of the pen core for support. When the pen core is subjected to force and deformed during writing, it can drive the elastic claw arm that supports and cooperates with it to deform accordingly. The elastic claw arm can also provide elastic force to assist the pen core connecting seat in restoring its deformation, which can better reflect the elastic deformation effect of the pen core connecting seat and improve the writing feel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of an embodiment of the utility model;

[0019] Figure 2 It is a partial structural diagram of an embodiment of the utility model;

[0020] Figure 3 It is a partial front view of an embodiment of the utility model;

[0021] Figure 4 For along Figure 3 Section view of AA section line;

[0022] Figure 5 It is a partial side view of an embodiment of the utility model;

[0023] Figure 6 For along Figure 5 Sectional view of BB section line;

[0024] Figure 7 For along Figure 3 Sectional view of CC section line;

[0025] Figure 8 It is a partial rear view of an embodiment of the utility model;

[0026] Fig. 9 It is a top view of a part of an embodiment of the utility model. DETAILED DESCRIPTION

[0027] The utility model has a pen shell with an elastic support seat. Figure 1-9 As shown, the specific structure is as follows: it includes a pen holder 1, a support seat 2 connected to the front end of the pen holder 1, a cavity 4 for accommodating a refill 3 is formed between the pen holder 1 and the support seat 2, the pen holder 1 is mainly used for holding by hand and accommodating the ink storage tube part of the refill 3, the support seat 2 is mainly used for supporting in cooperation with a connecting seat (a connecting component between the ink storage tube and the ink outlet core) located at the front end of the refill 3, the front end of the support seat 2 includes at least two elastic claw arms extending forward, in this embodiment, there are four elastic claw arms (21a, 21b), these elastic claw arms (21a, 21b) are distributed along the circumference of the axis of the pen shell, and the front ends of these elastic claw arms (21a, 21b) are surrounded by an opening 22 for the front end of the refill to pass through, and the opening 22 is for the connecting seat of the refill 3 to pass through (such as Figure 1 As shown in the figure, a gap 23 connected to the opening 22 is arranged between two circumferentially adjacent elastic claw arms (21a, 21b) along the axis of the pen housing. The gap 23 is arranged so that the two circumferentially adjacent elastic claw arms will not interfere with each other when deforming, thereby improving the deformation effect of the elastic claw arms.

[0028] The elastic claw arms are divided into two groups, which are marked as 21a and 21b in the drawings, respectively. The two groups of elastic claw arms are distributed along the first radial direction of the axis of the pen shell (in Fig. 9 In the figure, the first radial direction corresponds to the up and down direction of the figure), the gap 23 is formed between the two sides corresponding to the circumferential direction of the two groups of elastic claw arms, so that the two groups of elastic claw arms will not interfere with each other when deformed, and the two groups of elastic claw arms have different lengths. The length of the elastic claw arm labeled 21a is longer than that of the elastic claw arm labeled 21b. The front end of the elastic claw arm 21a with a longer length is more protruding toward the front than the front end of the elastic claw arm 21b with a shorter length. When the pen is written and subjected to force in two different directions of the first radial direction, based on the different lengths of the elastic claw arms, the two groups of elastic claw arms (21a, 21b) can provide different support effects for the front end of the pen core.

[0029] Since the traditional fountain pen usually includes a nib formed by processing a piece of metal sheet, the metal sheet includes a middle seam extending to the front end of the nib, the middle seam divides the front end of the nib into two halves, and uses capillary phenomenon to drain ink so that the pen tip works normally. The nib of the fountain pen has different writing feel and writing effect when writing in different directions. When writing in the front and back directions of the metal sheet, the nib of the fountain pen will be relatively soft and easy to deform, and the written line will appear thicker. When writing in the side direction of the metal sheet, the nib of the fountain pen will be relatively hard and not easy to deform, and the written line will appear thinner. Based on this characteristic of the fountain pen, the lines written by the fountain pen are more diverse and rich in posture compared with other types of pens, and are particularly suitable for writing fonts, and the written fonts have the beauty of ups and downs. However, the pen core in the prior art has the same deformation effect when writing in different directions, and cannot produce a writing effect similar to that of a fountain pen.

[0030] In the utility model, two groups of elastic claw arms (21a, 21b) of different lengths cooperate with the front end of the pen core 3 to support it. When writing in two different directions along the first radial direction of the pen shell axis, different support effects can be provided for the deformation of the pen core connecting seat, thereby providing different writing elasticities. The distance between the front end of the relatively long elastic claw arm 21a and the front end of the pen core 3 is closer (such as Figure 1As shown in the figure, it can provide a better supporting effect. The connecting seat of the pen core is relatively difficult to deform in the direction of the supporting force of the longer elastic claw arm 21a. The relatively short elastic claw arm 21b has a relatively long distance from the front end of the pen core, and the supporting effect it provides is relatively weak. The connecting seat of the pen core 3 is more likely to deform in the direction of the supporting force of the shorter elastic claw arm 21b. This enables the pen of the utility model to produce a writing effect similar to that of a fountain pen when writing, and can write lines similar to those written by a fountain pen. In addition, the user can clearly observe that the lengths of the two sets of elastic claw arms (21a, 21b) are different, which is convenient for the user to identify the writing direction.

[0031] Each group of elastic claw arms includes two elastic claw arms of the same length, and the two elastic claw arms of each group of elastic claw arms are distributed along the second radial direction of the axis of the pen shell (in Fig. 9 In the figure, the second radial direction corresponds to the left and right direction of the figure), and the first radial direction and the second radial direction are perpendicular to each other. Since two elastic claw arms of different lengths are provided on both sides of the second radial direction corresponding to the axis of the pen housing, the same deformation effect can be provided when writing in two different directions along the second radial direction. By cooperating with the above structure, the similarity with the writing effect of a fountain pen is further improved.

[0032] The four elastic claw arms (21a, 21b) are all arranged obliquely, and the distance between the front end of the elastic claw arm and the axis of the pen shell is smaller than the distance between the rear end of the elastic claw arm and the axis of the pen shell. The front end of the elastic claw arm is arranged close to the front end of the pen core, which can improve the supporting effect of the elastic claw arm on the front end of the pen core 3, so that the front end of the pen will not be too soft.

[0033] A groove 220 is provided on the inner side of the front end of the elastic claw arm, and the opening 22 is formed by combining the grooves 220 at the front ends of all the elastic claw arms. The arrangement of the groove 220 can improve the writing effect similar to steel, make the force more uniform, and prevent the elastic claw arm and the front end of the pen core 3 from slipping, thereby improving the matching effect.

[0034] The inner side of the pen holder 1 is provided with a positioning structure for cooperating with the pen core 3 to form circumferential positioning. In other embodiments, the positioning structure can also be provided on the inner side of the support seat 2. For the pen core 3 having different elastic deformation effects in different writing directions, the positioning structure can form circumferential positioning cooperation with it, so that the orientations of the pen core 3 and the pen shell can be in corresponding positions, thereby improving the cooperation effect with such pen core 3.

[0035] The positioning structure includes an annular convex wall 4 arranged on the inner side of the pen barrel 1, the annular convex wall 4 includes an inner hole 40 cooperated with the pen core and an annular end face 41 arranged at the rear of the corresponding pen barrel 1, a positioning slide groove 42 connected to the inner hole 40 is opened on the annular convex wall 41, the positioning slide groove 42 is extended along the axial direction of the pen barrel 1, the front end of the positioning slide groove 42 (the end opposite to the front end of the pen shell) is closed, and an insertion port connected to the rear end of the positioning slide groove 42 is arranged on the annular end face 41 of the annular convex wall 41, which can cooperate with the positioning protrusion on the pen core 3 to achieve circumferential positioning, when the pen core is inserted into the pen shell along the axial direction, the positioning protrusion on the pen core 3 can be inserted into the positioning slide groove 42 through the insertion port, and the inner walls on both sides of the positioning slide groove 42 cooperate with the positioning protrusion to limit, so as to prevent the pen core from rotating relative to the pen shell.

[0036] The annular end surface 41 of the annular convex wall 4 is inclined, and the insertion port is located at the position of the annular end surface 41 of the annular convex wall 4 closest to the front of the pen housing. The annular end surface 41 of the inclined annular convex wall can be used to guide the positioning protrusion on the pen core 3 to be inserted into the insertion port, and then inserted into the positioning slot 42, so as to facilitate the installation and positioning between the pen core and the pen housing.

[0037] In this embodiment, the positioning structure is arranged at the front end of the inner side of the pen barrel 1 and is positioned in coordination with the connecting seat of the pen core. The positioning structure is arranged there, which can reduce the distance between the front end of the pen core and the front end of the pen core, so that the front end of the pen core is not easily twisted when writing, and the circumferential positioning effect of the pen core can be improved. In other embodiments, the positioning structure can also be arranged at the inner rear end of the support seat 2. In addition, for the pen core, its matching positioning structure, such as the positioning protrusion, can also be arranged at the connecting seat of the pen core to facilitate the production and processing of the matching pen core.

[0038] The above embodiment is only one of the preferred specific embodiments of the present invention. Common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A pen case with an elastic support seat, comprising a pen holder and a support seat connected to the front end of the pen holder, a cavity for accommodating a pen core is formed between the pen holder and the support seat, characterized in that: The front end of the support seat includes at least two elastic claw arms extending forward, and these elastic claw arms are distributed along the axis circumference of the pen shell. An opening for the front end of the pen core to pass through is formed around the front end of the elastic claw arms, and a gap connected to the opening is arranged between two adjacent elastic claw arms along the axis circumference of the pen shell.

2. The pen case with an elastic support seat according to claim 1, characterized in that: The elastic claw arms are divided into two groups, which are distributed along the first radial direction of the axis of the pen shell. The gaps are formed between the two sides corresponding to the circumferential direction of the two groups of elastic claw arms, and the two groups of elastic claw arms have different lengths.

3. The pen case with an elastic support seat according to claim 2, characterized in that: Each group of elastic claw arms includes two elastic claw arms with the same length. The two elastic claw arms of each group of elastic claw arms are distributed along the second radial direction of the axis of the pen shell, and the first radial direction is perpendicular to the second radial direction.

4. The pen case with an elastic support seat according to claim 1, characterized in that: The elastic claw arm is arranged obliquely, and the distance between the front end of the elastic claw arm and the axis of the pen shell is smaller than the distance between the rear end of the elastic claw arm and the axis of the pen shell.

5. The pen case with an elastic support seat according to claim 1, characterized in that: A groove is provided on the inner side of the front end of the elastic claw arm, and the opening is formed by combining the grooves at the front ends of all the elastic claw arms.

6. The pen case with an elastic support seat according to claim 2, characterized in that: The inner side of the pen holder or the support seat is provided with a positioning structure which cooperates with the pen core to form circumferential positioning.

7. The pen case with an elastic support seat according to claim 6, characterized in that: The positioning structure includes an annular convex wall arranged on the inner side of the pen shaft or the inner side of the support seat, the annular convex wall includes an inner hole cooperated with the pen core and an annular end face arranged at the rear of the corresponding pen shaft, a positioning slide groove connected to the inner hole is opened on the annular convex wall, the positioning slide groove is extended along the axial direction of the pen shaft, the front end of the positioning slide groove is closed, and an insertion port connected to the rear end of the positioning slide groove is arranged on the annular end face of the annular convex wall.

8. The pen case with an elastic support seat according to claim 7, characterized in that: The annular end surface of the annular convex wall is arranged in an inclined manner, and the insertion port is located at a position of the annular end surface of the annular convex wall that is closest to the front of the pen housing.

9. The pen case with an elastic support seat according to claim 6, characterized in that: The positioning structure is arranged at the front end inside the pen barrel or the rear end inside the support seat, and cooperates with the connecting seat of the pen core for positioning.

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