TWM660656U - Easy-on shoes with elastic heel - Google Patents

Abstract

A kind of easy-to-wear shoe with heel elasticity comprises a sole unit including a side wall at the heel, an upper unit arranged on the sole unit and defining an internal space with a shoe inlet, an inner cover unit arranged in the internal space, an elastically deformable heel elastic sheet, and a contact layer fixed between the inner surface of the upper unit and the outer surface of the inner cover unit. The upper unit has a top opening edge surrounding the shoe inlet and a heel portion of the upper abutting against the side wall at the heel. The inner cover unit defines a wearing space connected to the shoe inlet and includes an inner cover heel portion corresponding to the heel portion of the upper. The heel spring sheet is arranged between the heel portion of the upper and the heel portion of the inner sleeve and includes a spring sheet body, the spring sheet body having a pressure-bearing portion and two rebound wings extending from two sides of the pressure-bearing portion respectively, the pressure-bearing portion having a pressure-bearing top edge adjacent to the top opening edge, and a pressure-bearing bottom edge adjacent to the sole unit, the pressure-bearing bottom edge being lower than the top edge of the side wall at the heel in a height direction.

Description

Easy-on shoes with elastic heel

The invention relates to a pair of shoes, in particular to an easy-to-wear shoe with elastic heel.

As shown in FIGS. 1 , 2 and 3 , a shoe is known to include an upper 1, an inner sleeve 2 disposed in the upper 1, a sole 3 fixed to the bottom of the upper 1, and a heel support 4 disposed between the heel of the upper 1 and the heel of the inner sleeve 2. The heel support 4 can support and shape the heel of the upper 1.

As shown in Figs. 3, 4 and 5, since the heel support 4 is not elastic, the user generally needs to pull the heel of the upper 1 back with fingers when inserting the heel into the inner sleeve 2, or the user needs to use a shoe horn (not shown) to assist the heel to slide into the inner sleeve 2 so that the heel of the upper 1 does not collapse. However, all these will cause inconvenience to the user when wearing shoes. However, when the user is too lazy to pull the heel of the upper 1 back with fingers, or there is no shoe horn available, the user will often directly step on the heel of the upper 1. This way of wearing shoes for a long time will often cause the heel of the upper 1 and the heel support 4 to collapse and deform.

Therefore, the object of the present invention is to provide an easy-to-wear shoe with heel elasticity that can overcome at least one disadvantage of the prior art.

Therefore, the new easy-to-wear shoe with heel elasticity includes a sole unit, a vamp unit, an inner cover unit, a heel elastic sheet, and a contact layer.

The sole unit includes a heel sidewall.

The upper unit is arranged on the sole unit and defines an inner space with a shoe entrance. The upper unit has a top opening edge surrounding the shoe entrance and a shoe upper heel portion abutting against the side wall at the heel.

The inner cover unit is arranged in the inner space, and defines a wearing space with an open top and a closed bottom. The wearing space is connected to the shoe entrance, and the inner cover unit includes an inner cover heel portion corresponding to the heel portion of the upper.

The heel spring sheet is elastically deformable and is arranged between the heel portion of the upper and the heel portion of the inner sleeve. The heel spring sheet includes a spring sheet body, which has a pressure-bearing portion and two rebound wings extending from two sides of the pressure-bearing portion respectively. The pressure-bearing portion has a pressure-bearing top edge adjacent to the top opening edge and a pressure-bearing bottom edge adjacent to the sole unit. The pressure-bearing bottom edge is lower than the top edge of the side wall at the heel in a height direction.

The connecting layer is fixed between the inner surface of the upper unit and the outer surface of the inner cover unit.

The utility model has the following advantages: the utility model utilizes the heel spring piece in conjunction with the design of the side wall at the heel of the sole unit, so that the user can automatically return the heel portion of the upper unit to a normal state by utilizing the elastic restoring force of the heel spring piece during the process of putting on the shoes, without using fingers or shoe horns for assistance and without bending the waist, so that the shoe-putting operation can be completed easily. In this way, not only can the user be more convenient and save trouble when putting on the shoes, but also the heel portion of the upper unit can be effectively prevented from collapsing and deforming due to the user's stepping.

6, 7, and 8, which are an embodiment of the novel easy-to-wear shoe 100 with heel elasticity, the easy-to-wear shoe 100 comprises a sole unit 10, an upper unit 20, an inner cover unit 30, a heel elastic sheet 40, a barrier unit 50, a heel cushioning foam sheet 60, and a connection layer 70 (see FIG. 13).

The sole unit 10 includes a heel sidewall 11, a toe sidewall 12, and two sidewalls 13 connected between the heel sidewall 11 and the toe sidewall 12.

As shown in FIGS. 8, 9 and 10, the upper unit 20 is disposed on the sole unit 10 and includes a main upper 21 and a tongue 22 disposed at the instep of the main upper 21. The main upper 21 has an upper body 23, a shoe opening lining 24 sewn to the upper body 23, and a shoe opening pad 25 disposed between the upper body 23 and the shoe opening lining 24 (see FIG. 14). The tongue 22 has a tongue block 26 and a tongue lining 27 sewn to the tongue block 26. The upper unit 20 defines an internal space 28 formed with a shoe inlet 281.

The upper body 23 has a heel portion 231 abutting against the side wall 11 at the heel, and a center line 232 parallel to a length direction X. The heel portion 231 intersects with a straight reference plane 200 passing through the center line 232 to define a heel outer contour 233 (see FIG. 14 ). The heel outer contour 233 (see FIG. 14 ) is in the form of a straight line inclined upward and forward.

The shoe opening lining 24 has a top opening edge 241 surrounding the shoe entrance 281, and a shoe opening lining bottom end 242 extending downward (see FIGS. 13 and 14 ).

The top opening edge 241 has a highest edge segment 243 and two concave arc edge segments 244 extending forward from opposite ends of the highest edge segment 243. Each concave arc edge segment 244 has a lowest point 245 and a rear arc edge portion 246 connected between the lowest point 245 and the highest edge segment 243. A first horizontal reference line L1 parallel to the longitudinal direction X can be defined through the lowest point 245. A first tangent line T1 tangent to the rear arc edge portion 246 and the first horizontal reference line L1 can define a first minimum tilt angle θ1, and the first minimum tilt angle θ1 is not greater than 30°.

The shoe tongue lining 27 has a shoe tongue lining bottom end portion 271 extending downward (see FIG. 13 ).

As shown in Figures 8, 13, and 14, the inner cover unit 30 is disposed in the inner space 28. The inner cover unit 30 includes a ring-shaped top connecting end 31 and an inner cover heel portion 32 corresponding to the upper heel portion 231. The inner cover unit 30 defines a wearing space 34 with an open top end and a closed bottom end, and the wearing space 34 is connected to the shoe inlet 281.

In this embodiment, the inner cover unit 30 is made by sewing an inner cover piece 33. As shown in FIG. 15, the inner cover piece 33 has a lining layer 331, a surface layer 332, and a supporting layer 333 disposed between the lining layer 331 and the surface layer 332.

In this embodiment, the supporting layer 333 is a vertical velvet layer woven between the lining layer 331 and the surface layer 332. However, this is not limited to this. In other variations, the supporting layer 333 may also be a foam layer.

In this embodiment, the shoe opening inner lining bottom end 242 of the shoe opening lining 24 extends downward into the wearing space 34, the shoe opening inner lining bottom end 271 of the shoe tongue lining 27 extends downward into the wearing space 34, the shoe opening inner lining bottom end 242 is folded outward and sewn together with the top connecting end 31, the shoe tongue inner lining bottom end 271 is folded outward and sewn together with the top connecting end 31, the shoe opening inner lining bottom end 242 of the shoe opening lining 24 is continuous with the shoe tongue inner lining bottom end 271 of the shoe tongue lining 27, and circumferentially covers the top connecting end 31 of the inner cover unit 30.

As shown in FIGS. 9 and 10 , the heel spring sheet 40 is elastically deformable and is disposed between the upper heel portion 231 (see FIG. 14 ) and the inner sleeve heel portion 32 (see FIG. 14 ).

As shown in FIGS. 11 , 12 and 14 , the heel spring sheet 40 includes a spring sheet body 41 and a hot melt adhesive layer 42 disposed on the inner surface of the spring sheet body 41 .

The spring sheet body 41 has a pressure-bearing portion 43 and two rebound wing portions 44 extending from two sides of the pressure-bearing portion 43, respectively. The pressure-bearing portion 43 has a pressure-bearing top edge 431 adjacent to the top opening edge 241, and a pressure-bearing bottom edge 432 adjacent to the sole unit 10. The pressure-bearing bottom edge 432 is lower than the top edge of the side wall 11 at the heel in the height direction Z. The hardness of the spring sheet body 41 is between 90HA and 98HA in Shore hardness. In this embodiment, the highest edge section 243 of the top opening edge 241 is located above the pressure-bearing top edge 431 of the pressure-bearing portion 43 in a height direction Z, and the pressure-bearing top edge 431 faces upward until it is adjacent to the highest edge section 243 of the top opening edge 241. The material of the elastic sheet body 41 is TPU, and the thickness of the elastic sheet body 41 is 1.5 mm.

The compression portion 43 of the spring body 41 intersects with the lead reference surface 200 (see FIG. 10 ) to define a spring rear profile 433 . The spring rear profile 433 is in the shape of a straight line that is inclined upward and forward. The heel outer profile 233 corresponds to the spring rear profile 433 .

As shown in FIGS. 9, 11, and 12, each rebound wing portion 44 of the heel spring sheet 40 has an upper arc edge 441 connected to the pressure-bearing top edge 431 of the pressure-bearing portion 43, a lower arc edge 442 connected to the pressure-bearing bottom edge 432 of the pressure-bearing portion 43, and a side connecting edge 443 connected between the upper arc edge 441 and the lower arc edge 442. 1 and the side connecting edge 443 can define a second horizontal reference line L2 parallel to the longitudinal direction X, and a second tangent line T2 tangent to the upper arc edge 441 and the second horizontal reference line L2 can define a second minimum tilt angle θ2, and the second minimum tilt angle θ2 is not greater than 30°, and the first minimum tilt angle θ1 corresponds to the second minimum tilt angle θ2.

It can be understood that, as shown in Figures 9, 10, and 14, the heel spring sheet 40 can support the upper heel portion 231 of the upper main body 23 and the inner sleeve heel portion 32 of the inner sleeve unit 30, and support the highest edge segment 243 of the top opening edge 241 of the shoe mouth lining 24 and the rear arc edge portion 246 of the concave arc edge segment 244, so that the heel outer contour 233 can correspond to the spring sheet rear contour 433, and the first minimum inclination angle θ1 can correspond to the second minimum inclination angle θ2.

As shown in FIGS. 8 , 13 and 14 , the barrier unit 50 is blocked between the inner cover heel portion 32 of the inner cover unit 30 and the heel elastic sheet 40 , and the hot melt adhesive layer 42 of the heel elastic sheet 40 is adhered to the barrier unit 50 .

In this embodiment, the barrier unit 50 includes an isolation foam sheet 51 disposed on the inner sleeve heel portion 32 and partially covering the top connecting end portion 31, and an isolation heel sheet 52 disposed on the inner sleeve heel portion 32 and located below the isolation foam sheet 51. The isolation foam sheet 51 is bent and covers the local top connecting end portion 31 and extends into the wearing space 34. The material of the isolation heel sheet 52 is TPU, and the thickness of the isolation heel sheet 52 is 0.8-1mm. It can be understood that the isolation foam sheet 51 and the isolation heel sheet 52 can prevent the hot melt adhesive layer 42 of the heel elastic sheet 40 from directly adhering to the surface fabric layer 332 of the inner cover panel 33 of the inner cover unit 30, and the isolation foam sheet 51 can also prevent the hot melt adhesive layer 42 of the heel elastic sheet 40 from overflowing into the inner cover unit 30.

The heel cushioning foam sheet 60 is disposed between the barrier unit 50 and the upper heel portion 231 of the upper unit 20.

As shown in FIGS. 13 , 14 and 15 , the contact layer 70 is fixed between the inner surface of the upper unit 20 and the outer surface of the inner cover unit 30 .

As shown in FIGS. 13, 16 and 17, when the user wants to put on the shoes, he can insert the front half of the foot into the wearing space 34 of the inner cover unit 30 and directly step on the upper heel portion 231 of the upper body 23 of the upper unit 20 with the heel. During this process, the pressure-bearing portion 43 of the spring body 41 of the heel spring 40 will be bent downward while pressing against the side wall 11 of the heel of the sole unit 10, and the rebound wing portion 44 of the spring body 41 will be moved in a horizontal direction Y. The shoe entrance 281 of the inner space 28 of the upper unit 20 is stretched open to facilitate the user to insert the heel into the wearing space 34 of the inner cover unit 30. After the user slightly raises the heel, the elastic restoring force of the elastic sheet body 41 will automatically rebound the upper heel portion 231 of the upper body 23 of the upper unit 20 to the state shown in FIG. 9, so that the user can easily complete the shoe-wearing operation without the assistance of fingers or shoe horns and without bending over.

Through the above description, the advantages of the present invention can be summarized as follows:

1. The present invention utilizes the heel spring sheet 40 in conjunction with the design of the side wall 11 at the heel of the sole unit 10, so that the user can automatically return the upper heel portion 231 of the upper body 23 of the upper unit 20 to a normal state by utilizing the elastic restoring force of the heel spring sheet 40 when putting on the shoes, without using fingers or shoe horns for assistance and without bending over, so that the shoe-putting operation can be completed easily. Compared with the prior art, the present invention not only makes it more convenient and less troublesome for the user to put on the shoes, but also effectively prevents the upper heel portion 231 of the upper body 23 of the upper unit 20 from collapsing or deforming due to the user's stepping.

Second, the present invention utilizes the barrier unit 50 in conjunction with the design of the heel spring sheet 40 to prevent the hot melt adhesive layer 42 of the heel spring sheet 40 from directly adhering to the surface fabric layer 332 of the inner cover panel 33 of the inner cover unit 30, so as to effectively prevent the surface fabric layer 332 of the inner cover panel 33 of the inner cover unit 30 from being torn during the elastic deformation of the heel spring sheet 40. In addition, the isolation foam sheet 51 of the barrier unit 50 can effectively prevent the adhesive of the hot melt adhesive layer 42 of the heel spring sheet 40 from overflowing into the inner cover unit 30 during the bonding process.

3. The present invention utilizes the heel cushioning foam sheet 60 in conjunction with the heel spring sheet 40. When the user steps on the upper heel portion 231 of the upper body 23 of the upper unit 20 with his heel, it not only provides a cushioning effect, but also prevents the user's heel from hitting the relatively hard heel spring sheet 40, thereby providing the user with a better wearing experience.

Fourth, the present invention utilizes the design that the shoe opening inner lining bottom end 242 of the shoe opening inner lining 24 is folded outwards and then sewn together with the top connecting end 31 of the inner cover unit 30, and the shoe tongue inner lining bottom end 271 of the shoe tongue inner lining 27 is folded outwards and then sewn together with the top connecting end 31 of the inner cover unit 30. In addition to hiding the sewing line between the shoe opening inner lining 24 and the inner cover unit 30 and the sewing line between the shoe tongue inner lining 27 and the inner cover unit 30, the sewing traces inside the present invention are simplified, the texture is increased, and the wearing comfort of the user is improved.

In summary, the easy-to-wear shoes with elastic heels of the present invention not only allow the user to easily put on the shoes without using fingers or shoe horns for assistance and without bending over, but also prevent the heel portion of the upper body of the upper unit from collapsing and deforming due to being stepped on, so the purpose of the present invention can be achieved.

However, the above is only an example of the implementation of the present invention, and it cannot be used to limit the scope of the implementation of the present invention. All simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still within the scope of the present patent.

100: Easy-to-wear shoes 10: Sole unit 11: Sidewall at the heel 12: Sidewall at the toe 13: Sidewall at the side 20: Upper unit 21: Main upper 22: Tongue 23: Main body of upper 231: Heel of upper 232: Centerline 233: Outer contour of heel 24: Lining of shoe opening 241: Top opening edge 242: End of the bottom lining of shoe opening 243: Highest edge 244: Concave arc edge 245: Lowest point 246: Back arc edge 25: Shoe opening pad 26: Tongue block 27: Lining of tongue 271: End of the inner lining of the tongue 28: Internal space 281: Shoe entrance 30: Inner cover unit 31: Top connection end 32: Inner cover heel 33: Inner cover panel 331: Lining layer 332: Surface layer 333: Support layer 34: Wearing space 40: Heel spring 41: Spring body 42: Hot melt adhesive layer 43: Pressure-bearing part 431: Pressure-bearing top edge 432: Pressure-bearing bottom edge 433: Spring rear contour 44: Rebound wing 441: Upper arc edge 442: Lower arc edge 443: Side connection edge 50: Barrier unit 51: Isolation foam sheet 52: Isolation heel sheet 60: Heel cushion foam sheet 70: Adhesion layer X: Length direction Y: Horizontal direction Z: Height direction L1: First horizontal reference line T1: First tangent line θ1 First minimum tilt angle L2: Second horizontal reference line T2: Second tangent line θ2: Second minimum tilt angle 200: Lead vertical reference surface 1: Upper 2: Inner sleeve 3: Sole 4: Heel support

Other features and functions of the present invention will be clearly presented in the implementation method with reference to the drawings, in which: Figure 1 is a three-dimensional appearance diagram of a known shoe; Figure 2 is an exploded three-dimensional diagram of the shoe; Figure 3 is a side view of the shoe; Figure 4 is a view similar to Figure 3, illustrating that the heel of the shoe is deformed by being stepped on; Figure 5 is a top view of Figure 4; Figure 6 is a three-dimensional appearance diagram of an embodiment of the present invention's easy-to-wear shoe with heel elasticity; Figure 7 is a view similar to Figure 6, but viewed from another angle; Figure 8 is an exploded three-dimensional diagram of the embodiment; Figure 9 is a side view of the embodiment; Figure 10 is a rear view of the embodiment; Figure 11 is an unfolded plan view of a heel spring of the embodiment before assembly; FIG. 12 is a three-dimensional view of the heel spring in an assembled state; FIG. 13 is a combined cross-sectional view of the embodiment; FIG. 14 is an enlarged cross-sectional view of the portion A in FIG. 13; FIG. 15 is an enlarged cross-sectional view of the portion B in FIG. 13; FIG. 16 is a view similar to FIG. 9, illustrating that a heel portion of an upper of an upper unit of the embodiment is stepped on; and FIG. 17 is a top view, illustrating that the heel spring pushes open a shoe entrance of the upper unit when the heel portion of the upper is stepped on.

10:Sole unit

11: Side wall at the heel

20: Upper unit

23: Main body of the upper

231: Heel of the upper

233: Outer contour of the heel

24: Inside the shoe opening

241: Open the edge of the mouth

242: End of the inner lining of the shoe opening

243: The highest stage

25: Shoe opening pad

28:Inner space

281: Shoe entrance

30: Inner sleeve unit

31: Top connection end

32: Heel of inner sleeve

33: Inner cover piece

34: Wearing space

40: Heel spring

41: Shrapnel body

42: Hot melt adhesive layer

43: Pressure-bearing part

431: Pressure on the top edge

432: Pressure bottom edge

433: Shrapnel rear profile

44: Rebound wing

50: Barrier unit

51: Isolation foam sheet

52: Isolation heel piece

60: Heel cushioning foam sheet

70: Next layer

X: Length direction

Y: horizontal direction

Z: height direction

Claims (10)

A pair of easy-to-wear shoes with heel elasticity comprises: a sole unit including a side wall at the heel; an upper unit arranged on the sole unit and defining an internal space with a shoe inlet, the upper unit having a top opening edge surrounding the shoe inlet and a shoe heel portion abutting against the side wall at the heel; an inner cover unit arranged in the internal space, the inner cover unit defining a wearing space with an open top and a closed bottom, the wearing space being connected to the shoe inlet, the inner cover unit including a corresponding upper heel portion Inner sleeve heel portion; a heel spring sheet, which can be elastically deformed and is arranged between the upper heel portion and the inner sleeve heel portion, the heel spring sheet includes a spring sheet body, the spring sheet body has a pressure-bearing portion, and two rebound wings extending from two sides of the pressure-bearing portion, the pressure-bearing portion has a pressure-bearing top edge adjacent to the top opening edge, and a pressure-bearing bottom edge adjacent to the sole unit, the pressure-bearing bottom edge is lower than the top edge of the side wall at the heel in a height direction; and a connection layer, fixed between the inner surface of the upper unit and the outer surface of the inner sleeve unit. As described in claim 1, the easy-to-wear shoe with heel elasticity, wherein the upper unit also has a center line parallel to a length direction, the compression portion of the spring plate body intersects with a lead straight reference surface passing through the center line to define a spring plate rear profile, the spring plate rear profile is in the shape of a straight line that is inclined upward and forward, and the hardness of the spring plate body is between 90HA and 98HA in Shaw hardness. As described in claim 2, the easy-to-wear shoe with elastic heel, wherein the heel portion of the upper intersects with the lead reference surface to define a heel outer contour, the heel outer contour is in the shape of a straight line that is inclined upward and forward, and the heel outer contour corresponds to the rear contour of the elastic sheet. As described in claim 2, the easy-to-wear shoe with heel elasticity, wherein the top opening edge has a highest edge section located above the pressure-bearing top edge of the pressure-bearing portion in the height direction, and two concave arc edge sections extending forward from two opposite ends of the highest edge section, each concave arc edge section has a lowest point, and a rear arc edge section connected between the lowest point and the highest edge section, a first horizontal reference line parallel to the length direction can be defined through the lowest point, and a first tangent line tangent to the rear arc edge section and the first horizontal reference line can define a first minimum tilt angle, and the first minimum tilt angle is not greater than 30°. As described in claim 4, the easy-to-wear shoe with heel elasticity, wherein each resilient wing portion of the heel elastic sheet has an upper arc edge connected to the pressure-bearing top edge of the pressure-bearing portion, a lower arc edge connected to the pressure-bearing bottom edge of the pressure-bearing portion, and a side connection edge connected between the upper arc edge and the lower arc edge, a second horizontal reference line parallel to the length direction can be defined through the connection between the upper arc edge and the side connection edge, a second tangent tangent to the upper arc edge and the second horizontal reference line can define a second minimum tilt angle, the second minimum tilt angle is not greater than 30°, and the first minimum tilt angle corresponds to the second minimum tilt angle. The easy-to-wear shoe with heel elasticity as described in claim 1 further comprises a barrier unit, the heel elastic sheet further comprises a hot melt adhesive layer disposed on the inner surface of the elastic sheet body, the barrier unit blocks between the inner sleeve heel portion of the inner sleeve unit and the heel elastic sheet, and the hot melt adhesive layer of the heel elastic sheet adheres to the barrier unit. As for the easy-to-wear shoes with elastic heels as described in claim 6, the inner cover unit further includes a ring-shaped top connecting end, the barrier unit includes an isolation foam sheet disposed at the heel portion of the inner cover and partially shielding the top connecting end, and an isolation heel sheet disposed at the heel portion of the inner cover and located below the isolation foam sheet. The easy-to-wear shoe with heel elasticity as described in claim 7 also includes a heel cushioning foam sheet, which is arranged between the barrier unit and the heel portion of the upper unit. The easy-to-wear shoe with heel elasticity as described in claim 2, wherein the upper unit includes a main upper and a tongue arranged at the instep of the main upper, the main upper having an upper body, a shoe opening lining sewn to the upper body, and a shoe opening lining arranged between the upper body and the shoe opening lining, the upper body having the upper heel portion and the center line, the shoe opening lining having the top open edge and a downwardly extending The shoe tongue has a shoe tongue block and a shoe tongue lining sewn to the shoe tongue block. The shoe tongue lining has a shoe tongue lining end extending downward into the wearing space. The inner sleeve unit also includes a ring-shaped top connecting end. The shoe mouth lining end is folded outward and sewn together with the top connecting end. The shoe tongue lining end is folded outward and sewn together with the top connecting end. As described in claim 9, the easy-to-wear shoe with elastic heel, wherein the inner cover unit is made by sewing an inner cover piece, and the inner cover piece has a lining layer, a surface layer, and a support layer disposed between the lining layer and the surface layer.