Manual sunshade for vehicles

Abstract

The utility model relates to a kind of vehicle manual sunshade, it includes the roller shutter that can be rolled up and released by roller shutter winding shaft tube group, the shaft tube cover of the shaft tube both ends of roller shutter winding shaft tube group is hard component, the bottom of the folding groove of shaft tube cover has necking notch and the two notch bearing walls at its two sides, the edge pipe plug of the edge pipe both ends of roller shutter is provided with insertion end, rib portion is formed on the outer circumferential surface of its plug column in insertion end, when edge pipe plug passes the necking notch of shaft tube cover, rib portion can be extruded deformation by notch bearing wall, so that insertion end is pushed into folding groove, rib portion restores original shape, by this, the combination structure of simplified edge pipe plug and shaft tube cover, not only edge pipe plug and shaft tube cover can be once moulded, with manufacturing simplicity, and insertion end of edge pipe plug can be pushed into shaft tube cover with smaller force, edge pipe plug can be stably supported in shaft tube cover.

Description

Technical Field

[0001] This utility model relates to a sunshade device for motor vehicles, and more particularly to a manual sunshade device for use on the windshield of a motor vehicle. Background Technology

[0002] Currently, manual sunshades used on the windshields of motor vehicles consist of a roller blind retractor assembly and a roller blind that can be retracted and released by the roller blind retractor assembly. The roller blind is installed at the upper end of the windshield of the motor vehicle by the roller blind retractor assembly. The roller blind can be pulled down from the roller blind retractor assembly and unfolded. It is positioned by a hook set in the middle of the roller blind side tube at the bottom edge of the roller blind and is locked onto a fastener at the lower end of the windshield. The unfolded roller blind can block sunlight at the windshield.

[0003] While existing manual sunshades for vehicles provide sun protection for the windshield, the bottom edge of the roller blind lacks a suitable positioning structure after the roller blind is retracted. The vehicle sunshade disclosed in Japanese Patent JP7689511B1 further utilizes a soft rubber pad on the inner wall of the receiving section at the end of the roller blind retraction assembly. This soft rubber pad forms two opposing soft stops at a notch on the bottom side of the receiving section, allowing the cylindrical portion of the side tube plug at the end of the roller blind to pass through the notch and push aside the two soft stops located on either side of the notch before entering the receiving section. The opposing soft stops can be deformed by compression, making it easy for the side tube plug to enter and difficult to exit the receiving section. Furthermore, if the torsion spring of the roller blind retraction shaft assembly fails, the supporting effect of the soft stops located below the side tube plug prevents the roller blind and its side tube from falling.

[0004] While the existing vehicle sunshade devices achieve their intended function, their manufacturing process is time-consuming and labor-intensive. The side tube plugs require manual attachment of soft rubber pads to the entire inner wall of the rigid receiving section. Furthermore, the side tube plugs are easy to insert but difficult to remove from the receiving section. Users must first detach the side tube plugs from the receiving section before manually opening the shutter, causing inconvenience. Moreover, although existing vehicle sunshade devices utilize the support of a soft stop located below the side tube plugs, the supporting force of the soft stop is insufficient. Vibrations during vehicle operation make it difficult for the side tube plugs to provide adequate support, resulting in significant swaying and noise from the connected side tubes. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a manual sunshade device for vehicles, which solves the technical problems of existing vehicle sunshade devices, such as the time-consuming and labor-intensive manufacturing process of attaching a soft rubber pad to the inner wall of the rigid receiving part of the side tube plug, and the difficulty in providing support for the roller blind side tube due to the soft rubber pad forming a soft stop at the notch at the bottom of the side tube plug.

[0006] The technical solution proposed in this utility model is to provide a manual sunshade device for vehicles, which includes a roller blind that can be wound and released by a roller blind retraction shaft tube assembly. Each end of a shaft tube in the roller blind retraction shaft tube assembly has a shaft tube cap. The roller blind has a roller blind side tube located outside the roller blind retraction shaft tube assembly. The two side tube plugs at both axial ends of the side tube can be operated to engage and disengage relative to the corresponding shaft tube caps, wherein: The two shaft tube caps are components made of rigid materials. The shaft tube caps have a closing groove and two slot bearing walls located at the bottom of the closing groove. A narrowed slot is formed between the two slot bearing walls, which decreases in size from the bottom toward the closing groove. Each of the two side plugs has an insertion end that extends out of the end of the roller shutter side tube. The insertion end has a plug and at least one rib formed on the outer peripheral surface of the plug. The rib of the insertion end can be squeezed and deformed through the constricted groove and enter the closing groove. The rib of the insertion end that enters the closing groove can be restored and is supported by the two groove bearing walls in the closing groove.

[0007] In the aforementioned manual sunshade device for vehicles, the plunger is cylindrical, and a plurality of strip-shaped ribs are equally distributed at angles on the outer circumferential surface of the cylindrical plunger, with each strip-shaped rib extending along the axial direction of the plunger.

[0008] In the aforementioned manual sunshade device for vehicles, the plunger is cylindrical, and a plurality of annular ribs are arranged axially at intervals on the outer circumferential surface of the cylindrical plunger.

[0009] In the aforementioned manual sunshade device for vehicles, the plunger is cylindrical, and at least one spiral rib is formed on the outer circumferential surface of the cylindrical plunger.

[0010] In the aforementioned manual sunshade device for vehicles, the plunger is cylindrical, and at least one herringbone spiral rib is formed on the outer circumferential surface of the cylindrical plunger.

[0011] In the aforementioned manual sunshade device for vehicles, the lower sections of the two slot-supporting walls facing the narrowed slots form opposing inclined guide slopes; the upper sections of the two slot-supporting walls facing the bottom of the converging slots form opposing upward inclined slopes, so that the bottom of the converging slots forms a narrowed shape that decreases in size from the top towards the narrowed slots.

[0012] In the aforementioned manual sunshade device for vehicles, the two ends of the side tube plug are an insertion end and a connecting end, respectively, and there is an intermediate section between the connecting end and the insertion end. The connecting end of the side tube plug can be inserted into the end of the roller blind side tube, and the intermediate section abuts against the side end of the end of the roller blind side tube for positioning.

[0013] This utility model of a manual sunshade device for vehicles can achieve the following beneficial effects: 1. Easy to manufacture: The combination structure of the side tube plug and shaft tube cap of this utility model adopts a simplified design. Both the side tube plug and the shaft tube cap can be formed by mold in one step without additional processing procedures, which has good manufacturing simplicity.

[0014] 2. The side tube plugs at both ends of the roller shutter side tube are well supported by the shaft tube cap: This utility model utilizes ribs set on the outer circumference of the plug at the insertion end of the side tube plug, and a rigid shaft tube cap forms two groove bearing walls and a constricted groove between the two groove bearing walls at the bottom of the closing groove. When the side tube plug passes through the constricted groove of the shaft tube cap, it can enter the closing groove after being squeezed and deformed by the ribs. The ribs immediately return to their original shape, and the side tube plug is supported by the two groove bearing walls at the bottom of the closing groove. The shaft tube cap is made of a rigid material, which can provide good storage and stable support for the side tube plug. When the motor vehicle is in motion, it can reduce the swaying amplitude and noise of the roller shutter side tube connected to the roller shutter.

[0015] 3. Effortless Operation: This utility model utilizes a rib on the outer circumference of the plug at the insertion end of the side tube plug. Combined with a rigid shaft tube cap, it forms two groove bearing walls and a constricted groove between the two groove bearing walls at the bottom of the closing groove. When the side tube plug enters the closing groove through the constricted groove of the shaft tube cap, the rib of the side tube plug, with a relatively small volume, is gradually squeezed and deformed by the rigid groove bearing walls on both sides of the constricted groove. The side tube plug can be pushed into the closing groove with a small force. After entering the closing groove, the rib immediately returns to its original shape, and the two groove bearing walls at the bottom of the closing groove jointly support the side tube plug at the end of the roller shutter side tube.

[0016] Furthermore, in this invention, the maximum outer diameter of the insertion end with ribs is moderately larger than the width of the small diameter end of the constricted groove adjacent to the receiving groove. If the torsion spring inside the roller shutter rewind tube assembly fails, the two groove bearing walls inside the rigid tube cover can maintain good support below the insertion end of the side tube plug, preventing the dangerous situation of the roller shutter side tube connecting the curtain fabric falling down.

[0017] This utility model of a manual sunshade device for vehicles can further utilize the shaft tube cap to form an upwardly inclined surface on the upper section of the two slot bearing walls facing the bottom of the converging groove, so that the bottom of the converging groove forms a converging shape with a reduced size from the top towards the converging groove. With the guiding effect of the upwardly inclined surface of the upper section of the two slot bearing walls, and the rib of the side tube plug being squeezed and deformed, it enters the converging groove and then detaches from the shaft tube cap. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the manual sunshade device for vehicles of this utility model, showing the curtain of a roller blind in the unfolded state.

[0019] Figure 2 yes Figure 1 An exploded perspective view of various embodiments of the roller shutter side tube and side tube plugs.

[0020] Figure 3 yes Figure 1 The diagram shows the usage state of the manual sunshade device for vehicles when the curtain is closed.

[0021] Figure 4 yes Figure 1 The illustrated embodiment of a manual sunshade for vehicles shows a perspective view of the side tube of the roller blind being inserted into the shaft tube cover after the blind fabric is retracted.

[0022] Figure 5 yes Figures 1 to 4 The diagram shows the side tube plug of the roller shutter side tube entering the shaft tube cover from the outside (I).

[0023] Figure 6 yes Figures 1 to 4 The diagram shows the side tube plug of the roller shutter side tube entering the shaft tube cover from the outside (II).

[0024] Figure 7 yes Figures 1 to 4 The diagram shown is a schematic diagram (III) of the side tube plug of the roller shutter side tube entering the shaft tube cover from the outside.

[0025] Figure 8This is a schematic diagram showing that when the torsion spring of the roller blind retraction shaft tube assembly in the embodiment of the present invention fails, the insertion end of the side tube plug is supported by the two slot bearing walls inside the rigid shaft tube cover. Detailed Implementation

[0026] The following description, in conjunction with the accompanying drawings and embodiments of the present invention, further illustrates the technical solutions adopted by the present invention to achieve the intended purpose.

[0027] like Figure 1 and Figure 2 The diagram illustrates an embodiment of the present invention: a manual sunshade device for vehicles. This device can be installed on the windshield of a motor vehicle to provide sun shading. The device includes a roller blind retraction shaft assembly 1 and a roller blind 2. The roller blind retraction shaft assembly 1 includes a shaft tube 10 and an inner tube installed within the shaft tube 10. Each end of the shaft tube 10 has a shaft tube cap 11. The inner tube is connected to its adjacent shaft tube cap 11 via an elastic torsion assembly. The inner tube and elastic torsion assembly within the shaft tube 10 of the roller blind retraction shaft assembly 1 are existing products and will not be described in detail here.

[0028] like Figure 1 and Figure 2 As shown, the roller blind 2 includes a curtain fabric 20 and a roller blind side tube 21. One side of the curtain fabric 20 passes through the shaft tube 10 and is connected to the inner tube. Through the torsional elasticity provided by the elastic torsion assembly, the curtain fabric 20 can be rolled into the shaft tube 10 and wrapped around the outer circumference of the inner tube. The other side of the curtain fabric 20 extending outside the shaft tube 10 is connected to the roller blind side tube 21. Each of the axial ends of the roller blind side tube 21 is provided with a side tube plug 22. When the curtain fabric 20 is closed, the side tube plugs 22 at both ends of the roller blind side tube 21 can enter the shaft tube cover 11 respectively, positioning the roller blind side tube 21. After the side tube plugs 22 at both ends of the roller blind side tube 21 can be operated to disengage from the shaft tube cover 11, the curtain fabric 20 can be pulled open.

[0029] like Figure 1 and Figure 2 As shown, both shaft tube caps 11 are integrally formed components of rigid material. Each shaft tube cap 11 has a tube end cover section 111 and a side tube connection section 112 located on the side of the tube end cover section 111. The tube end cover section 111 is assembled to the end of the shaft tube 10. The side tube connection section 112 is located on the outside of the shaft tube 10. The side of the side tube connection section 112 facing the shaft tube 10 forms a receiving groove 113, two groove bearing walls 114 at the bottom of the receiving groove 113, and a narrowed groove 115 located between the two groove bearing walls 114 and communicating with the bottom of the receiving groove 113.

[0030] like Figure 1 and Figure 2 As shown, the lower sections of the two slot-bearing walls 114 facing the constricted slot 115 form opposing inclined guide surfaces 1141. These inclined surfaces 1141 cause the constricted slot 115 to decrease in size from bottom to top towards the receiving groove 113. In other words, the end of the constricted slot 115 adjacent to the receiving groove 113 (i.e., the upper end) is the smaller diameter end, and the end of the constricted slot 115 away from the receiving groove 113 (i.e., the lower end) is the larger diameter end.

[0031] like Figure 1 and Figure 2 As shown, in this embodiment, the shaft tube cover 11 can further form an upwardly inclined surface 1142 on the side of the upper section of the two slot bearing walls 114 facing the bottom of the receiving groove 113, so that the bottom of the receiving groove 113 forms a narrowed shape with the size reduced from top to bottom in the direction of the narrowed groove 115 (i.e. from top to bottom).

[0032] like Figures 1 to 2As shown, each of the two side plugs 22, 22A, 22B, 22C has an insertion end 221, 221A, 221B, 221C extending from the end of the roller shutter side tube 21. Each insertion end 221, 221A, 221B, 221C has a plug 2210, 2210A, 2210B, 2210C and at least one rib 2211, 2211A, 2211B, 2211C formed on the outer peripheral surface of the plug. The maximum outer diameter of the insertion ends 221, 221A, 221B, 221C of the side plug 22 is moderately larger than the width of the narrowed groove 115 adjacent to the small diameter end of the receiving groove 113. The two side plugs 22... The insertion ends 221, 221A, 221B, and 221C can enter the closing groove 113 from bottom to top through the constricted groove 115. When the ribs of the insertion ends 221, 221A, 221B, and 221C pass through the constricted groove 115, they are deformed and reduced in size by the pressure of the groove bearing walls 114 on both sides of the constricted groove 115 before entering the closing groove 113. After entering the closing groove 113, the ribs 2211, 2211A, 2211B, and 2211C of the insertion ends recover, thus confining the insertion ends 221, 221A, 221B, and 221C within the closing groove 113. Similarly, the insertion ends 221, 221A, 221B, and 221C can also be reversed to detach from the shaft tube cover 11. The upper inclined surface 1142 formed by the shaft tube cap 11 on the side of the upper section of the groove bearing wall 114 facing the bottom of the groove 113 helps the insertion ends 221, 221A, 221B, 221C of the two tube plugs 22, 22A, 22B, 22C to be squeezed and deformed from the groove 113 and detached through the constricted groove 115.

[0033] like Figure 2 In the embodiment shown, the two ends of the side tube plugs 22, 22A, 22B, 22C are respectively an insertion end 221, 221A, 221B, 221C and a connecting end 222, 222A, 222B, 222C. The connecting end 222, 222A, 222B, 222C and the insertion end 221, 221A, 221B, 221C have an intermediate section 223, 223A, 223B, 223C. The side tube plug 22 can be inserted into the end of the roller shutter side tube 21 with the connecting end, and the intermediate section 223, 223A, 223B, 223C abuts against the side end of the end of the roller shutter side tube 21 for positioning.

[0034] The insertion ends 221, 221A, 221B, 221C of the side plugs 22, 22A, 22B, 22C can at least Figure 2 The various embodiments shown are implemented as follows: In one embodiment of the side tube plug 22, the insertion end 221 may form a plurality of strip-shaped ribs 2211 distributed at equal angles on the outer peripheral surface of the cylindrical plug 2210, each strip-shaped rib 2211 extending along the axial direction of the plug.

[0035] In one embodiment of the side tube plug 22A, the insertion end 221A may form a plurality of annular ribs 2211A on the outer peripheral surface of the cylindrical plug 2210A, and the plurality of annular ribs 2211A are arranged at intervals along the axial direction. The outward end face of the annular ribs 2211A may also form a conical surface.

[0036] In one embodiment of the side tube plug 22B, the insertion end 221B may form at least one spiral rib 2211B on the outer peripheral surface of the cylindrical plug 2210B.

[0037] In one embodiment of the side tube plug 22C, the insertion end 221C may form at least one herringbone spiral rib 2211C on the outer peripheral surface of the cylindrical plug 2210C. When there are multiple herringbone spiral ribs 2211C, the multiple herringbone spiral ribs 2211C are connected continuously or spaced apart along the axial direction of the cylindrical plug 2210C on the outer peripheral surface of the cylindrical plug 2210C.

[0038] like Figure 2 As shown, in various embodiments of the insertion ends 221, 221A, 221B, 221C of the aforementioned side tube plugs 22, 22A, 22B, 22C, ribs 2211, 2211A, 2211B, 2211C are arranged around the outer peripheral surface of their cylindrical plugs 2210, 2210A, 2210B, 2210C. This allows the side tube plugs 22, 22A, 22B, 22C to be squeezed and deformed into the receiving groove 113 when passing through the constricted groove 115, without being restricted by a specific angle or position. After entering the receiving groove 113, they return to their original shape. The side tube plugs 22, 22A, 22B, 22C at the end of the roller shutter side tube 21 are housed in the receiving groove 113 of the shaft tube cover 11. The two groove bearing walls 114 located at the bottom of the gathering groove 113 can jointly support the side tube plugs 22, 22A, 22B, 22C at the end of the roller shutter side tube 21 when necessary.

[0039] This utility model relates to a manual sunshade device for vehicles, applied to the windshield of motor vehicles. When the roller blind 2 is retracted, it provides... Figure 1 The illustrated embodiment is an example, such as Figure 3 and Figure 4 As shown, the curtain fabric 20 of the roller blind 2 is automatically wound up by the roller blind retraction shaft tube assembly 1, causing the roller blind side tube 21 at the bottom end of the curtain fabric 20 to rise, wherein, as Figures 5 to 7As shown, it utilizes the insertion end 221 of the side tube plug 22 to form a rib 2211 on the outer peripheral surface of the plug 2210, and is equipped with a rigid shaft tube cap 11 to form two slotted bearing walls 114 at the bottom of its converging groove 113 and a narrowed slot 115 located between the two slotted bearing walls 114, as shown. Figure 3 When the side tube plug 22 passes through the constricted groove 115 of the shaft tube cover 11, the maximum outer diameter of the insertion end 221 with ribs 2211 is moderately larger than the width of the small diameter end of the constricted groove 115 adjacent to the receiving groove 113, and the ribs 2211, with their small volume, are easily deformed by compression, thus allowing the side tube plug 22 to be pushed into the receiving groove 113 with ease. After the side tube plug 22 enters the receiving groove 113, the ribs 2211 of the side tube plug 22 immediately return to their original shape by their own restoring force, and the shaft tube cover 11 houses and limits the side tube plug 22 at the end of the roller shutter side tube 21. When the motor vehicle is in motion, the swaying amplitude and noise of the roller shutter side tube 21 of the roller shutter 2 can be reduced.

[0040] When the side tube plug 22 of the roller blind side tube 21 wants to detach from the closing groove 113 of the shaft tube cover 11, it can be dimensionally reduced from the bottom of the closing groove 113 towards the constricted groove 115. With the guiding action of the upper inclined surface 1142 of the upper section of the two groove bearing wall 114, the rib 2211 of the side tube plug 22 can be squeezed and deformed, and can detach from the shaft tube cover 11 through the constricted groove 115, and then pull the curtain 20 of the roller blind 2 through the side tube 21 to unfold.

[0041] like Figure 8 As shown, in this utility model, the maximum outer diameter of the insertion end 221 with rib 2211 is moderately larger than the width of the small diameter end of the constricted groove 115 adjacent to the receiving groove 113. If the torsion spring inside the roller blind rewind tube assembly 1 fails, the two groove bearing walls 114 inside the rigid tube cover 11 can maintain good support below the insertion end 221 of the side tube plug 22, preventing the dangerous situation of the roller blind side tube 21 connecting the curtain 20 in the roller blind 2 falling down.

[0042] The above description is merely an embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the present utility model's technical solution shall still fall within the scope of the present utility model's technical solution.

Claims

1. A manual sunshade for vehicles, comprising a blind that can be wound and released by a blind retractor assembly, wherein each end of a retractor of the blind retractor assembly has a retractor cap, the blind has a blind side tube located outside the blind retractor assembly, and the two side tube plugs at both axial ends of the blind side tube can be operated to engage or disengage relative to the retractor caps at corresponding positions, characterized in that: The two shaft tube caps are components made of rigid materials. The shaft tube caps have a closing groove and two slot bearing walls located at the bottom of the closing groove. A narrowed slot is formed between the two slot bearing walls, which decreases in size from the bottom toward the closing groove. Each of the two side plugs has an insertion end that extends out of the end of the roller shutter side tube. The insertion end has a plug and at least one rib formed on the outer peripheral surface of the plug. The rib of the insertion end can be squeezed and deformed through the constricted groove and enter the closing groove. The rib of the insertion end that enters the closing groove can be restored and is supported by the two groove bearing walls in the closing groove.

2. The vehicle manual sunshade device according to claim 1, characterized in that, The plunger is cylindrical, and multiple strip-shaped ribs are formed at equal angles on the outer circumferential surface of the cylindrical plunger, with each strip-shaped rib extending along the axial direction of the plunger.

3. The manual sunshade device for vehicles according to claim 1, characterized in that, The plunger is cylindrical, and a plurality of annular ribs are arranged at intervals along the axial direction on the outer circumferential surface of the cylindrical plunger.

4. The manual sunshade device for vehicles according to claim 1, characterized in that, The plunger is cylindrical, and at least one spiral rib is formed on the outer circumferential surface of the cylindrical plunger.

5. The manual sunshade device for vehicles according to claim 1, characterized in that, The plunger is cylindrical, and at least one herringbone spiral rib is formed on the outer circumferential surface of the cylindrical plunger.

6. The vehicle manual sunshade device according to any one of claims 1 to 5, characterized in that, The lower sections of the two groove bearing walls facing the constricted groove form oppositely inclined guide slopes. The upper sections of the two groove bearing walls facing the bottom of the converging groove form oppositely inclined upper slopes, so that the bottom of the converging groove forms a converging shape with a reduced size from the top towards the converging groove.

7. The vehicle manual sunshade device according to any one of claims 1 to 5, characterized in that, The two ends of the side tube plug are an insertion end and a connecting end, respectively. There is an intermediate section between the connecting end and the insertion end. The connecting end of the side tube plug can be inserted into the end of the roller shutter side tube. The intermediate section abuts against the side end of the roller shutter side tube for positioning.

8. The manual sunshade device for vehicles according to claim 6, characterized in that, The two ends of the side tube plug are an insertion end and a connecting end, respectively. There is an intermediate section between the connecting end and the insertion end. The connecting end of the side tube plug can be inserted into the end of the roller shutter side tube. The intermediate section abuts against the side end of the roller shutter side tube for positioning.

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