Automobile seat back with integrated neck pillow, method of manufacture, method of operation, and seat

Abstract

The application relates to an automobile seat backrest integrated with a neck pillow, a manufacturing method, a working method and a seat, which comprises a backrest assembly, a headrest assembly is arranged at the top of the backrest assembly, an inflatable neck pillow assembly is arranged between the backrest assembly and the headrest assembly, the backrest assembly comprises a backrest framework assembly, a backrest foaming assembly is fixed to the backrest framework assembly, the headrest assembly is provided with a pressure detection element, a control module is arranged at the middle position of the backrest spring of the backrest framework assembly, the control module is connected with the pressure detection element through a signal line, a gas pump is arranged at the bottom of the side edge plate of the backrest framework assembly, the gas pump is connected with the inflatable neck pillow assembly through an inflation pipe, and the gas pump is connected with the control module through a control line. The backrest of the application is based on the inflatable neck pillow assembly, the gas pump and the control module, and no extra space of other automobile components is occupied.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile, in particular to an automobile seat back integrated with a neck pillow, a manufacturing method, a working method and a seat. BACKGROUND

[0002] The statements herein are provided only to complement the background of the present application and are not necessarily prior art.

[0003] The automobile seat is an important part to provide comfort for the driver and passenger, with the development of technology and the improvement of people's demand, the comfort requirement of the seat is also higher and higher. At present, most of the industry increases the soft pillow on the headrest to improve the comfort, and some car owners buy the neck pillow to hang on the headrest of the seat to support the neck.

[0004] The patent CN205768828U discloses an automobile seat inflatable neck pillow structure, which comprises a double-layer air bag group arranged between the backrest and the headrest of the automobile seat, and a controller for controlling the inflation and deflation of the double-layer air bag group. The double-layer air bag group comprises a supporting air bag and an adjusting air bag partially overlapping above the supporting air bag. The controller can inflate and deflate the supporting air bag and the adjusting air bag through two air supply pipes.

[0005] In the above-mentioned patent, the controller comprises an air pump, two electromagnetic valves and a check valve, and is arranged outside the seat. Therefore, a space for installing the controller needs to be reserved in the automobile, which affects the design of other parts of the automobile and increases the design difficulty. Moreover, the user needs to manually control the controller to inflate and deflate the air bag assembly, which is inconvenient to use. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides an automobile seat back integrated with a neck pillow, a manufacturing method, a working method and a seat. All components of the inflatable neck pillow are integrated on the backrest, so that no space is needed to be reserved in the rest of the automobile for installing the components of the inflatable neck pillow, which reduces the design difficulty of the automobile. Meanwhile, the operation of the inflatable neck pillow is more convenient, and the experience of the user is improved.

[0007] In order to achieve the above-mentioned purpose, the present application is realized by the following technical solutions:

[0008] In a first aspect, embodiments of the present application provide an automobile seat back integrated with a neck pillow, comprising a back assembly, a headrest assembly arranged on the top of the back assembly, and an inflatable neck pillow assembly arranged between the back assembly and the headrest assembly, wherein the back assembly comprises a back skeleton assembly, and a back foam assembly fixed to the back skeleton assembly, the headrest assembly is provided with a pressure detection element, the back skeleton assembly is provided with a control module at a middle position of a back spring of the back skeleton assembly, the control module is connected to the pressure detection element through a signal line, a gas pump is arranged at the bottom of a side edge plate of the back skeleton assembly, the gas pump is connected to the inflatable neck pillow assembly through an inflation pipe, and the gas pump is connected to the control module through a control line.

[0009] Optionally, the pressure detection element is fixed to a headrest foam of the headrest assembly, and a signal line of the pressure detection element passes through the headrest foam and a headrest inverted rod of the headrest assembly.

[0010] Optionally, the inflatable neck pillow assembly comprises a gas bag fixing plate, the gas bag fixing plate is fixedly connected to a gas bag, and the gas bag fixing plate is fixedly connected to the back skeleton assembly through a gas bag fixing support.

[0011] Optionally, the gas bag fixing plate is made of plastic.

[0012] Optionally, the pressure detection element comprises a plurality of pressure sensors, and the pressure sensors are fixed in fixing grooves arranged in the headrest foam.

[0013] Optionally, the plurality of pressure sensors are distributed along a plurality of vertically intersecting longitudinal tracks and transverse tracks.

[0014] Optionally, an air inlet and an air outlet of the gas pump are connected to a cavity formed by an inner recess of the back foam assembly.

[0015] In a second aspect, embodiments of the present application provide a manufacturing method of the automobile seat back integrated with the neck pillow, comprising the following steps:

[0016] The inflatable neck pillow assembly is fixed to the top of the back skeleton assembly, the control module is installed at the middle position of the back spring of the back skeleton assembly, the gas pump is fixed to the bottom of the side edge plate of the back skeleton assembly, the inflatable neck pillow assembly is connected to the gas pump through a pipe interface of the inflation pipe, and a control interface of the gas pump is connected to the control module through a control line.

[0017] The pressure detection element is fixed to the headrest foam of the headrest assembly, a signal line of the pressure detection element passes through the headrest inverted rod of the headrest assembly, the headrest foam is covered with a headrest cover, and the signal line of the pressure detection element is connected to the control module.

[0018] The back foam assembly is assembled on the back assembly skeleton to form a back assembly, and a cover assembly is wrapped outside the back assembly.

[0019] The headrest assembly is assembled with the backrest framework assembly through the headrest reverse lever.

[0020] In a third aspect, embodiments of the present application provide a working method of the integrated neck pillow automobile seat backrest of the first aspect:

[0021] When the pressure detection element detects that the pressure value is greater than the set pressure value, it indicates that the user's head is leaning on the headrest assembly, at which time the pressure detection element sends a signal to the control module, and the control module controls the air pump to perform inflation work, and the air pump inflates the inflatable neck pillow assembly;

[0022] When the pressure detection element detects that the pressure value is less than the set pressure value, it indicates that the user has left the backrest assembly, at which time the pressure detection element sends a signal to the control module, and the control module controls the air pump to perform air exhaust work, and the air pump deflates the inflatable neck pillow assembly.

[0023] In a fourth aspect, embodiments of the present application provide an automobile seat provided with the integrated neck pillow automobile seat backrest of the first aspect.

[0024] The beneficial effects of the present application are as follows:

[0025] 1. The integrated neck pillow automobile seat backrest of the present application has a relatively large control module, which is arranged at the middle position of the backrest spring of the backrest framework assembly and is less affected by the deformation of the backrest spring. The air pump is relatively small and is greatly affected by external impact, so it cannot be fixed on a deformable object. Therefore, the air pump is arranged at the bottom of the side plate of the backrest framework assembly, and the bottom of the side plate of the backrest framework assembly is stamped and formed, so that the air pump can be effectively fixed firmly. The control module and the air pump are both integrated on the backrest, without occupying the space of the remaining part of the automobile, without the need to reserve installation space for the control module, the air pump and the corresponding circuit in the remaining part of the automobile, without the need for redesign, and with simpler improvement of the backrest of the automobile, low cost, and reduced design difficulty, workload and cost.

[0026] 2. The integrated neck pillow automobile seat backrest of the present application has a pressure detection element arranged in the headrest assembly. When the user sits on the automobile seat and the head applies pressure to the headrest assembly, the pressure detection element can send a signal to the control module, and the control module controls the air pump to inflate the inflatable neck pillow assembly. When the user leaves the seat, the pressure detection element can send a signal to the control module, and the control module controls the air pump to deflate the inflatable neck pillow. The user does not need to manually control the air pump to inflate or deflate, the operation is more convenient, and the user's use experience is optimized. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which form a part of this specification, are included to provide a further understanding of the application and are incorporated herein for explanation.

[0028] Figure 1 is a schematic diagram of the overall structure of embodiment 1 of the present application;

[0029] Figure 2 is a schematic diagram of the backrest skeleton assembly structure of embodiment 1 of the present application;

[0030] Figure 3 is a schematic diagram of the backrest foam assembly structure of embodiment 1 of the present application;

[0031] Figure 4 is a schematic diagram of the inflatable neck pillow assembly structure of embodiment 1 of the present application;

[0032] Figure 5 is a schematic diagram of the inflatable neck pillow assembly of embodiment 1 of the present application;

[0033] Figure 6 is a schematic diagram of the headrest assembly structure of embodiment 1 of the present application;

[0034] wherein 1. backrest assembly, 2. headrest assembly, 3. inflatable neck pillow assembly, 4. air pump, 5. control module, 6. pressure detection element;

[0035] 101. backrest skeleton assembly, 102. backrest foam assembly, 103. face cover assembly;

[0036] 301. air bag, 302. air bag fixing plate, 303. air bag fixing support. DETAILED DESCRIPTION

[0037] Embodiment 1

[0038] This embodiment provides an automobile seat backrest integrated with a neck pillow, such as Figures 1-3As shown, including backrest assembly 1, the top of backrest assembly 1 is connected with headrest assembly 2, backrest assembly 1 includes backrest skeleton assembly 101, backrest skeleton assembly 101 is fixed with backrest foam assembly 102, the overall structure of backrest foam assembly 102 and backrest skeleton assembly 101 is wrapped with face cover assembly 103, the headrest assembly 2 includes headrest skeleton assembly, headrest foam, headrest face cover and headrest reverse rod, etc., in the embodiment, the inflatable neck pillow assembly 3 is arranged between the backrest assembly 1 and the bottom of the headrest assembly 2, the inflatable neck pillow assembly 3 is used as a neck pillow, the inflatable neck pillow assembly 3 is connected with the air pump 4 integrated in the backrest assembly 1, the air pump 4 can inflate and deflate the inflatable neck pillow assembly 3, the air pump 4 is connected with the control module 5 arranged in the backrest assembly 1, and can work under the instruction of the control module 5, the headrest assembly 2 is provided with a pressure detection element 6 at the side matched with the head of the user, the pressure detection element 6 can identify whether the head of the user is pressed on the headrest assembly 2, when the pressure detection element 6 detects that the pressure value is greater than the set value, it is considered that the user sits on the seat, at this time, the control module 5 sends an instruction, the control module controls the air pump 4 to work, and inflates the inflatable neck pillow assembly 3, after the inflatable neck pillow assembly 3 is inflated, the inflatable neck pillow assembly 3 is matched with the neck of the user, and the comfort of the user is improved, when the pressure value detected by the pressure detection element 6 is less than the set value, it is proved that the user leaves the seat, at this time, the control module 5 controls the air pump 4 to work, and deflates the inflatable neck pillow assembly 3, and the whole inflatable neck pillow assembly 3 is contracted, and does not occupy the space of the seat part.

[0039] The backrest assembly 1 includes the backrest skeleton assembly 101, the backrest skeleton assembly 101 is fixedly matched with the back of the backrest foam assembly 102, the materials and structures of the backrest skeleton assembly 101 and the backrest foam assembly 102 can adopt the prior art, the back of the backrest foam assembly 102 has an inner recessed part, forming a space arranged between the backrest skeleton assembly 101 and the backrest foam assembly 102.

[0040] The backrest skeleton assembly 101 can adopt the prior art, the two sides of the backrest skeleton assembly 101 have side edges, and the middle part has a backrest spring, the control module 5 is installed at the middle part of the backrest spring of the backrest skeleton assembly 101, at this time, the control module 5 is located in the space formed by the back of the backrest foam assembly 102, so that the control module 5 does not hinder the installation of the backrest foam assembly 102.

[0041] The air pump 4 is installed at the bottom of the side edge plate on one side of the backrest skeleton assembly 101, and the air pump 4 is fixedly connected with the bottom of the side edge plate of the backrest skeleton assembly 101 through bolts or screws, in the embodiment, the air pump 4 can adopt the air pump capable of inhaling or exhaling in the prior art, and will not be described in detail here.

[0042] In the embodiment, the air inlet and outlet of the air pump 4 are in communication with a space formed in the back of the back foaming assembly and between the back frame assembly, which is used to store gas for the air pump 4 to work.

[0043] The back foaming assembly 102 is fixedly connected with the back frame assembly 101, and forms an integral assembly structure. The connection manner of the back foaming assembly 102 and the back frame assembly 101 can be achieved by using the prior art, and thus will not be described in detail herein.

[0044] The integral assembly structure formed by the back foaming assembly 102 and the back frame assembly 101 is wrapped with the face cover assembly 103. The face cover assembly 103 and the assembly manner thereof can be achieved by using the prior art, and thus will not be described in detail herein.

[0045] In the embodiment, the control module has a large size, and thus is arranged at a middle position of the back spring of the back frame assembly, and is less affected by deformation of the back spring. The air pump has a small size and is greatly affected by external impact, and thus cannot be fixed on a deformable object. Therefore, the air pump is arranged at a bottom of a side plate of the back frame assembly. The bottom of the side plate of the back frame assembly is stamped and formed, and the air pump can be effectively fixed. The control module and the air pump are both integrated on the back, and thus do not need to occupy space of the rest of the car. The rest of the car does not need to be reserved for installation space of the control module, the air pump and corresponding lines, and thus does not need to be redesigned. The improvement of the back of the car is simpler, and the cost is low. The design difficulty, workload and cost are reduced.

[0046] As shown in Figures 4-5 The inflatable neck pillow assembly 3 includes an air bag 301, an air bag fixing plate 302 and two air bag fixing supports 303.

[0047] In the embodiment, the air bag 301 has a U-shaped structure, and a space in the middle thereof is formed to embed the headrest assembly 2 in an inflated state.

[0048] The air bag 301 is fixedly connected with the air bag fixing plate 302. The air bag fixing plate 302 has a shape matched with that of the air bag 301, and also has a U-shaped plate. In the embodiment, the air bag fixing plate 302 is made of a plastic plate and is fixedly bonded with the air bag 301.

[0049] The two ends of the air bag fixing plate 302 are provided with connecting plates, and the connecting plates are provided with fixing holes. The two ends of the air bag fixing plate 302 are connected with the air bag fixing support 303 through the fixing holes and screws. In the embodiment, the air bag fixing support 303 is a metal support, which is provided with a first fixing hole for fixing the air bag fixing plate 302 and a second fixing hole for fixing the backrest framework assembly 101. The top end of the backrest framework assembly 101 is provided with a mounting plate matched with the air bag fixing support. The air bag fixing support 302 is fixedly connected with the top of the backrest framework assembly 101 through the second fixing hole, the fixing hole on the mounting plate and the screws.

[0050] As shown in Figure 6 The headrest assembly 2 can be of prior art, including a headrest framework assembly, a headrest foaming assembly, a headrest reverse rod, a headrest face cover and the like. The headrest foaming assembly is connected with the headrest assembly. The headrest framework assembly is connected with the backrest framework assembly 101 through the headrest reverse rod. The above-mentioned technology can be of prior art, and the specific structure will not be described in detail. The embodiment is improved on the basis of the existing headrest assembly 2. A plurality of pressure detection elements are fixed on the side of the headrest foaming assembly for cooperation with the head of a user.

[0051] In the embodiment, the pressure detection element 6 is a pressure sensor. A plurality of fixing grooves are formed in the side of the headrest foaming assembly for cooperation with the head of a user. The pressure sensor is fixedly bonded in the fixing grooves.

[0052] In the embodiment, the plurality of pressure sensors are distributed along a plurality of vertically intersecting longitudinal tracks and transverse tracks, which maximally cover the area of the headrest assembly in contact with the head, so that the pressure sensor can detect the pressure change when any user cooperates with the headrest assembly.

[0053] The signal line of the pressure sensor is connected with the control module 5 after passing through the headrest foaming assembly and the headrest reverse rod, which can transmit the collected pressure information to the control module 5.

[0054] The remaining structure of the headrest assembly 2 can be of prior art, and will not be described in detail.

[0055] In the embodiment, the air pump 4, the control module 5 and the corresponding circuit are arranged in the backrest assembly 1, without occupying the space of the remaining part of the car. The remaining part of the car does not need to reserve the installation space of the control module 5, the air pump 4 and the corresponding circuit, without the need for redesign. The improvement of the car backrest is simpler, with low cost, reduced design difficulty, workload and cost.

[0056] In some other embodiments, the air bag 301 adopts a plurality of layers distributed in up and down directions, each layer of air bag is connected to a switching valve through an air pipe, the switching valve is arranged at the interface of the air pump, and is used for switching the air charging and discharging of different air bags.

[0057] With the arrangement, the adjustment of the vertical air charging part of the air bag can be realized, and the support requirement of the neck of users with different heights and sizes can be met.

[0058] Embodiment 2

[0059] The embodiment provides a manufacturing method of the automobile seat back with the integrated neck pillow, and the manufacturing method comprises the following steps:

[0060] Step 1: after the air bag 301 is fixed with the air bag fixing plate 302, the air bag 301 is fixed at the top of the pre-manufactured back frame assembly 101 through the air bag fixing support 303, the control module 5 is installed at the middle position of the back spring of the back frame assembly 101, the air pump 4 is installed at the bottom of the side plate on one side of the back frame assembly 101, the control line between the control interface of the air pump 4 and the control module 5 is connected, and the interface of the air pump 4 is connected with the air charging and discharging port of the air bag 301 through the air pipe.

[0061] Step 2: assemble the headrest assembly 2, assemble the headrest foaming assembly with the headrest frame assembly, the assembly method adopts the prior art, and details are not described herein, then the pressure sensor is fixedly bonded in the fixing groove of the headrest foaming assembly, the signal line of the pressure sensor passes through the headrest foaming assembly and the headrest inverted rod, the headrest surface cover is wrapped outside the overall structure, the headrest inverted rod passes through the headrest surface cover, the headrest surface cover is manually wrapped, the assembly method adopts the prior art, and details are not described herein. After the headrest assembly 2 is assembled, the signal line of the pressure sensor is connected with the control module 5.

[0062] Step 3: after step 2 is completed, the back foaming assembly 102 is assembled on the back frame assembly 101, and the assembly method adopts the prior art, and details are not described herein.

[0063] Step 4: after the back foaming assembly 102 is assembled, the back foaming assembly 102 and the back frame assembly 101 form an overall assembly structure, and then the surface cover assembly 103 is wrapped on the overall assembly structure, and the assembly of the entire back assembly is completed. The wrapping method of the surface cover assembly 103 adopts the prior art, and details are not described herein.

[0064] Step 5: finally, the headrest assembly 2 is assembled to the back assembly 1 through the headrest inverted rod, and the assembly of the entire automobile seat back is completed.

[0065] Embodiment 3

[0066] The embodiment provides a working method of the integrated neck pillow automobile seat back described in embodiment 1:

[0067] The pressure sensor detects the pressure value borne by the headrest assembly 2 in real time. When it is detected that the pressure value is greater than a set value, it indicates that a user sits on the seat, and the head of the user applies pressure to the headrest assembly. At this time, the control module 5 sends an inflation instruction to the air pump 4, controls the air pump 4 to work, the air pump 4 inflates the air bag 301, the air bag expands and cooperates with the neck of the user, and the function of the neck pillow is realized.

[0068] In an implementation manner, the inflation amount of the air pump to the air bag is a set constant amount, and the amount can be set according to actual needs, which will not be described in detail herein.

[0069] In another implementation manner, when the head contacts the headrest assembly, the corresponding pressure sensor on the headrest assembly is pressed, the height and weight of the corresponding human body are identified, the relative position of the neck of the corresponding human body is identified, the distance between the headrest and the neck of the human body is calculated, the distance required to support the neck is calculated, and finally the air bag is inflated to stop inflation when the calculated height is reached.

[0070] In this implementation manner, experiments are performed in advance, the pressure on the headrest of a human body of different height and weight is collected by the pressure sensor after the human body sits on the seat, a database of pressure, height and weight of the human body and the distance between the neck of the human body and the headrest assembly is established, data in the database is fitted, a relationship model between the pressure and the human body of different height and weight is obtained, and then a relationship model between the pressure and the distance between the headrest and the neck of the human body is obtained according to the structure of the human body, so that the distance between the headrest and the neck of the human body can be obtained according to the data of the pressure sensor, the air bag is inflated according to the distance, and inflation is stopped when the target inflation amount is reached.

[0071] In a third implementation manner, a pressure sensor can be arranged on the side of the inflatable neck pillow assembly that is used to contact the neck of the human body, and the air pump stops inflation when the pressure sensor detects pressure.

[0072] When the user leaves the seat, the head no longer applies pressure to the headrest assembly, at this time, the pressure sensor detects that the pressure value is less than the set value, the control module 5 sends a deflation instruction to the air pump 4, controls the air pump 4 to work, the air pump 4 deflates the air bag 301, and the air bag 301 shrinks to the initial state and does not occupy the space in front of the backrest.

[0073] The working method of the embodiment controls the inflation and deflation of the air pump 4 by the detection value of the pressure sensor, without the need for the user to manually send an instruction to the control module 5, meets the requirement that the control module 5 is arranged in the backrest assembly 1, and is more convenient for the user to operate, and optimizes the use experience of the user.

[0074] Example 4

[0075] This embodiment provides a car seat, which is provided with the integrated neck pillow of the car seat backrest of Example 1, and the rest of the structure of the car seat can be implemented by using the prior art, which is not described in detail herein.

[0076] The above only provides preferred embodiments of the present application and is not intended to limit the present application. Various modifications and changes can be made by those skilled in the art based on the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automotive seat back incorporating a neck pillow, comprising a backrest assembly, a headrest assembly being provided at the top of the backrest assembly, characterized in that, An inflatable neck pillow assembly is arranged between the backrest assembly and the headrest assembly, the backrest assembly comprises a backrest framework assembly, the backrest framework assembly is fixed with a backrest foaming assembly, the headrest assembly is provided with a pressure detection element, a control module is arranged at a middle position of a backrest spring of the backrest framework assembly, the control module is connected with the pressure detection element through a signal line, a gas pump is arranged at a bottom of a side edge of the backrest framework assembly, the gas pump is connected with the inflatable neck pillow assembly through an inflation pipe, and the gas pump is connected with the control module through a control line; The pressure detection element is fixed on a headrest foaming of the headrest assembly, and a signal line of the pressure detection element passes through the headrest foaming and a headrest reverse rod of the headrest assembly; The pressure detection element comprises a plurality of pressure sensors, and the pressure sensors are fixed in fixing grooves arranged on the headrest foaming; the plurality of pressure sensors are distributed along a plurality of vertically intersected longitudinal tracks and transverse tracks; When the pressure detection element detects that the pressure value is greater than the set pressure value, it indicates that the head of the user is leaned on the headrest assembly, at this time, the pressure detection element sends a signal to the control module, the control module controls the gas pump to perform inflation work, and the gas pump inflates the inflatable neck pillow assembly; When the pressure detection element detects that the pressure value is less than the set pressure value, it indicates that the user leaves the backrest assembly, at this time, the pressure detection element sends a signal to the control module, the control module controls the gas pump to perform deflation work, and the gas pump deflates the inflatable neck pillow assembly.

2. The integrated neck pillow automotive seat back of claim 1, wherein, The inflatable neck pillow assembly comprises a gas bag fixing plate, the gas bag fixing plate is fixedly connected with a gas bag, and the gas bag fixing plate is fixedly connected with the backrest framework assembly through a gas bag fixing support.

3. The integrated neck pillow automotive seat back of claim 2, wherein, The gas bag fixing plate is made of plastic material.

4. The integrated neck pillow automotive seat back of claim 1, wherein, An air inlet and an air outlet of the gas pump are in communication with a cavity formed in a back surface of the backrest foaming assembly.

5. A method of manufacturing an integrated neck pillow automotive seat back according to any one of claims 1-4, characterized in that: The method comprises the following steps: The inflatable neck pillow assembly is fixed on a top of the backrest framework assembly, then the control module is installed at a middle position of a backrest spring of the backrest framework assembly, the gas pump is fixed at a bottom of a side edge plate of the backrest framework assembly, the inflatable neck pillow assembly is connected with the gas pump through a pipe interface of the inflation pipe, and a control interface of the gas pump is connected with the control module through a control line; The pressure detection element is fixed on a headrest foaming of the headrest assembly, and a signal line of the pressure detection element passes through the headrest foaming and a headrest reverse rod of the headrest assembly, then a headrest surface cover is wrapped on the headrest foaming, and the signal line of the pressure detection element is connected with the control module; The backrest foaming assembly is assembled on the backrest assembly framework to form a backrest assembly, and a surface cover assembly is wrapped on an outer portion of the backrest assembly; The headrest assembly is assembled with the backrest framework assembly through the headrest reverse rod.

6. An automobile seat characterized by comprising: The automobile seat backrest is provided with the integrated neck pillow according to any one of claims 1-4.

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