KR102232296B1 - POS device with integrated cradle - Google Patents

Abstract

The present invention relates to a POS terminal having an integrated cradle, which allows a cradle for using a tablet-type POS terminal in a standing-type to be withdrawn and inserted from/into a rear housing of the POS terminal. The POS terminal (1) having an integrated cradle of the present invention comprises a front housing (20) for surrounding and supporting a liquid crystal screen (10) and a rear housing (30) fastened to the rear of the front housing (20) and forming a space therein. According to the present invention, a rotating body (151) vertically and rotatably hinged to the rear side of the rear housing (30) and a support body (155) integrally extending with the rotating body (151) to support the POS terminal (1) are included, wherein the support body (155) can be accommodated in or withdrawn from the rear side of the rear housing (3) in accordance with rotation of the support body (155). Also, a cradle (150) for supporting the POS terminal (1) from the rear side by withdrawing the support body (155) is included. In addition, a penetration unit (114) for penetrating front and rear surfaces of the rear housing (30) is formed to have a predetermined length in a horizontal direction in the rear housing (30), and a rotating guide (111) for allowing a rotating shaft (152), which protrudes in a longitudinal direction of the rotating body (151) from both side ends of the rotating body (151) to be rotatably coupled is included.

Description

POS device with integrated cradle

The present invention relates to a force terminal provided with an integrated cradle, and more particularly, a cradle that allows a tablet-type force terminal to be used as a stand type at various angles is configured to be able to be withdrawn and inserted into the rear housing of the force terminal. It characterized in that it relates to a force terminal provided with an integrated cradle.

In general, a POS (Point Of Sale) terminal is a terminal for managing a point of sale, and it is necessary to build a POS system, a system that manages sales-related data at the point of sale using a computer.

Here, the POS system connects the POS terminal installed in stores such as stores that sell products to the main server, which is a host computer, and inputs sales information generated for each product at the same time as the product is sold, and then uses this information to It is a system that is reflected in the purchase and production of products or applied to detailed sales management.

Meanwhile, the POS terminal provides a function to store data such as quantity, inventory or sales, as well as bar code attached to a product or price calculation at the time of product payment, and check performance in real time.

On the other hand, the configuration of the POS terminal is a tablet unit that displays payment information, an input device such as a barcode scanner, a keyboard, and a card reader as a payment method, and collects, stores, aggregates, calculates, and analyzes data input from the input device. It consists of a body with a built-in PCB.

These POS terminals are used by adding various additional configurations in addition to the basic configuration according to the propensity of the business type and business condition, and as an example of that, the "POS device (Korean Registered Patent Publication No. 10-1641904)" of the following Patent Document 1 is used. Has been posted.

The "force device" of Patent Document 1 is composed of a main body, a display on which a card reader is formed, and a display for a customer, wherein the main body includes a bottom plate that is elongated in the front and rear directions; A body frame which is formed to be obliquely inclined in the center of the bottom plate and has a box type with an open top; A front cover fixed to the front of the main body frame; A memory holder capable of mounting a memory on the lower front side of the front cover; A front hinge penetrating an upper portion of the front cover and protruding from the main frame; It is characterized by consisting of a support member fixing portion fixed to the upper surface of the main frame, and the main frame is inclined in the direction in which the user touches, so when the main frame is touched, force is applied perpendicularly to the front hinge and the main frame, so the front hinge is easy It had the advantage of not being damaged.

However, the “force device” of Patent Document 1 has a problem in that a display used by a cashier and a display for a customer checked by a customer are respectively provided, so that the production cost of the POS device is increased and structurally complicated.

In addition, since the customer display is always fixed and inclined at the same angle, each customer sees the customer display in a state where the viewing field of view is different depending on the physical condition, thereby reducing inconvenience when the customer checks the contents displayed on the customer display. There was a problem that I could feel it.

Patent Document 1. Republic of Korea Patent Publication No. 10-1641904

In the present invention, conceived to solve the problems of the prior art as described above, a cradle that allows a tablet-type force terminal to be used in the form of a stand is provided as an integral type capable of being inserted into or withdrawn from the force terminal. It is to provide a POS terminal.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned will be clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. I will be able to.

In order to achieve the above object, the force terminal provided with the integrated cradle of the present invention has a front housing that surrounds and supports a liquid crystal screen, and is fastened from the rear of the front housing, but has a space in which a PCB, etc. can be provided. In the tablet-type POS (POS) device consisting of a rear housing to form, a rotating body that is hinged to the rear one side of the rear housing so as to be rotatably hinged and extending integrally with the rotating body to support the force terminal. It includes a support body, and is configured to accommodate the support body on one side of the rear side of the rear housing according to the rotation of the support body, or to be pulled out from the rear housing, and the force terminal is moved from the rear by pulling out the support body. It characterized in that it is provided with a cradle to support it at a predetermined angle.

In the rear housing, a through part penetrating the front and rear surfaces of the rear housing is formed to extend a predetermined length in a horizontal and horizontal direction, and the through part passes through the through part on both sides of the extended through part, but the rotation is fastened so as to be rotatable at the through part. It is characterized in that a rotation guide is provided for rotatably coupling a rotation shaft protruding from both side ends of the body in a longitudinal direction of the rotation body in a horizontal direction.

In addition, a plate spring having a predetermined width modified thickness extending in the vertical length direction is provided, and the fixing portions of the upper and lower ends of the leaf spring are fixedly coupled to the rear housing by means of a fixing member. A first acting part and a second acting part that are bent and protruded in the horizontal direction from the middle part in the direction of the rotation body are formed to be spaced apart in the length direction of the leaf spring, and the first acting part is pressed or pressed by the rotation body. It is to be released, and the second acting portion is characterized in that it is provided to distribute a pressing force that is a force acting on the first acting portion and an elastic restoring force according to the release of the pressure.

In addition, a plurality of fixing grooves extending in the horizontal length direction of the rotating body and depressed in a rounding shape are formed on the outer circumferential surface of the rotating body having a substantially cylindrical shape, spaced apart from the outer circumferential surface, and the It characterized in that the rotation of the rotating body is stopped by rotating the support body by inserting the end of the first acting portion that presses the rotating body into the fixing groove while the rotating body is rotating.

In addition, a support guide is provided on the inner surface of the rear housing to limit the rotation range of the rotating body by contacting the lower end of the limiting protrusion formed on one or more of both ends of the rotating body.

In addition, the cradle includes a ground contact portion for supporting the force terminal by contacting the ground when the support body is rotated to the rear, and a fastening protrusion protruding from the ground contact portion to one side, and the support body includes the rear housing It is formed in the rear of the rear housing is received in a storage groove extending in the vertical vertical direction of the rear housing, the fastening protrusion is characterized in that it is fitted to the fastening groove formed further recessed in the receiving groove.

In addition, when the support body is pulled out to support the force terminal at various angles, in order to maintain the contact area with the ground at any angle as much as possible, the bottom surface of the ground contact portion is configured in a rounded shape with a predetermined curvature, and includes a rubber material. It is characterized in that it is configured.

Accordingly, according to the present invention, it is possible to provide a force terminal in which a cradle having a simple structure that allows a tablet-type force terminal to be used in the form of a stand is inserted into the force terminal or is integrally provided so that it can be withdrawn from the force terminal.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description. .

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included as part of the detailed description to aid in understanding of the present invention, provide embodiments of the present invention, and describe the technical features of the present invention together with the detailed description.
1 is a schematic configuration diagram of a force terminal equipped with an integrated cradle according to an embodiment of the present invention.
2 is a diagram showing components fastened to a rear housing of a force terminal equipped with an integrated cradle according to an embodiment of the present invention.
3 is an exploded perspective view showing an enlarged portion A of FIG. 2 with respect to the coupling structure of the integrated cradle according to an embodiment of the present invention.
FIG. 4 is a diagram cut in section BB' of FIG. 2 in order to show the combined structure of the integrated cradle according to an embodiment of the present invention.
5 is a diagram showing an operating state of the integrated cradle according to an embodiment of the present invention.

The terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventor may appropriately define the concept of terms in order to describe his own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention on the basis of the principle that there is.

Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all the technical spirit of the present invention. It should be understood that there may be equivalents and variations.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used with meanings that can be commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not interpreted ideally or excessively unless explicitly defined specifically.

In the present specification, terms such as "comprises" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof does not preclude in advance.

Hereinafter, an embodiment of a force terminal equipped with an integrated cradle of the present invention will be described in detail with reference to the accompanying drawings. First, it should be noted that in the drawings, the same components or parts are denoted by the same reference numerals as much as possible, and in describing the present invention, detailed descriptions of related known functions or configurations do not obscure the subject matter of the present invention. Omitted to do so.

1 is a schematic configuration diagram of a force terminal equipped with an integrated cradle according to an embodiment of the present invention, and FIG. 2 is a component fastened to a rear housing of a force terminal equipped with an integrated cradle according to an embodiment of the present invention It is a picture representing the people.

In addition, FIG. 3 is an exploded perspective view showing an enlarged portion A of FIG. 2, and FIG. 4 is a diagram showing the coupling structure of the integrated cradle in section B-B' of FIG. 2.

In addition, Figure 5 (a), (b) is a diagram showing the operating state of the integrated cradle according to an embodiment of the present invention.

As shown, the force terminal 1 according to the embodiment of the present invention is configured in a tablet type, and largely, the front housing 20 surrounding and supporting the liquid crystal screen 10, and the front housing 20 It is configured to include a rear housing 30 that is fastened to the rear but forms a space in which a PCB or the like can be provided, and a cradle 150 that is integrally provided with the rear housing 30 and can be inserted and withdrawn.

That is, including a rotating body 151 hinged to the rear of the rear housing 30 so as to be rotatable up and down, and a support body 155 extending integrally with the rotating body 151 to support the force terminal 1 , It is configured to be able to accommodate or withdraw the support body 155 at the rear of the rear housing 30 according to the rotation of the support body 155, and the force terminal 1 is moved from the rear by pulling out the support body 155. It is a feature of the present invention to have a cradle 150 to support.

More specifically, in the rear housing 30, through portions 114 penetrating through the front and rear surfaces of the rear housing 30 are formed to extend a predetermined length in a horizontal and transverse direction, and through portions on both sides of the through portions 114 It is characterized in that a rotation guide 111 is provided so that the rotation shafts 152 protruding horizontally extending from both side ends of the rotation body 151 passing through 114 are rotatably coupled.

Hereinafter, the force terminal 1 provided with the integrated cradle 150 of the present invention will be described in detail.

First, the rear housing 30 will be described. As shown, the rear housing 30 is fastened from the rear of the front housing 20, but is formed by being fastened with the front housing 20, and the inside of the space and the rear housing 30 ) On the inner side of the PCB, the storage unit, etc., as well as the various components adopted in the present invention may be formed or provided.

A storage groove 140 that is recessed and extends in the vertical longitudinal direction is formed on the rear outside of the rear housing 30 so that the support body 155 can be accommodated, and is formed further recessed in the storage groove 140. The fastening groove 141 is formed so that the fastening protrusion 157 at the lower end of the support body 155 can be fitted, so that the support body 155 is completely accommodated in the force terminal 1.

In addition, although not shown, a magnet and a spring structure are formed in the fastening groove 141 into which the fastening protrusion 157 is fitted, and a metal member provided at the end of the fastening protrusion 157 is coupled by a magnet of the fastening groove 141. Then, when the support body 155 is pressed with a predetermined force for withdrawal of the support 150, the fastening protrusion 157 is separated from the fastening groove 141 by the restoring force of the spring, and the support body 155 for receiving it again. ) May be configured such that the spring is compressed and the fastening protrusion 157 is coupled to the fastening groove 141.

In addition, in the rear housing 30, through portions 114 penetrating the front and rear surfaces of the rear housing 30 are formed in a predetermined length in the horizontal direction, so that the rotating body 151 of the cradle 150 penetrates up and down. It is rotatably fastened, and the rotation shaft 152 extending in the horizontal direction from both side ends of the rotating body 151 penetrating through the through part 114 is rotatably coupled to both sides of the through part 114 A guide 111 is provided.

Therefore, since the rotation body 151 hinged to the rotation guide 111 can rotate up and down around the rotation shaft 152, the support body 155 of the holder 150 is at a predetermined angle. ), or can be accommodated in the storage groove 140 of the rear housing 30.

In addition, an auxiliary rotation guide 112 may be additionally provided to be spaced apart from one side of the rotation guide 111 in order to secure rotational stability of the rotation body 151.

That is, the rotation shaft 152 of the rotation body 151 is hinged to the rotation guide 111 as well as the auxiliary rotation guide 112 spaced a predetermined distance from the rotation guide 111.

For the convenience of assembly and manufacturing, as shown in FIG. 3, the rotation shaft 152 of the rotation body 151 is assembled by fitting through the open side of the rotation guide 111 with one side open. In order to prevent separation of the 151 and the like, the open side of the auxiliary rotation guide 112 may be configured to have a different direction from the open side of the rotation guide 111.

In addition, on the inner side of the rear housing 30, on one side of the through portion 114 or on the lower side of the rotating body 151 that is rotated while passing through the through portion 114, the rotating body of the cradle 150 A support guide 113 is provided for limiting the rotation of the rotating body 151 to the lower side by supporting it in contact with the lower end of the limiting protrusion 154 formed on one or more of both ends of the 151 , Do not allow the force terminal 1 to retreat backward during the user's operation.

In addition, the present invention is provided with a plate spring 120 having a predetermined width and thickness extending in the vertical length direction inside the rear housing 30, and the upper and lower ends of the leaf spring 120 are fixed to the rear housing 30. There is a feature, the leaf spring 120 will be described below.

The cradle 150 will be described. As shown, the cradle 150 is provided to be integrally received on the rear surface of the rear housing 30 and is configured to facilitate receiving or withdrawing the cradle 150.

In addition, when the cradle 150 is pulled out, the force terminal 1 can be tilted at various angles of inclination, and the force terminal 1 is configured not to slide or unexpectedly change the tilt angle during use.

The cradle 150 is largely composed of a rotating body 151 and a support body 155. The rotating body 151 is hinged to the rear of the rear housing 30 so as to be rotatable up and down, and is configured to fix or change the angle supporting the force terminal 1 according to the rotation angle, and the support body 155 is rotated. It is configured to support the force terminal 1 by extending integrally with the body 151 so that the lower end contacts the ground.

The rotation body 151 is provided in a cylindrical shape having a predetermined length in the horizontal direction, and rotation shafts 152 protruding in the horizontal direction are provided at both side ends in the length direction of the rotation body 151, respectively, and the rotation guide 111 ) By being hinged to the rotating body 151 to be able to rotate.

Further, on the outer peripheral surface of the rotating body 151, a plurality of fixing grooves 153 which are extended in the horizontal length direction of the rotating body 151 and depressed in a rounding shape having a predetermined curvature are formed to be spaced apart along the outer peripheral surface.

The fixing groove 153 is provided to press the rotating body 151 (or pressurized by the rotating body 151) by a rotation body ( The rotation of the 151 is to be stopped, depending on which of the plurality of fixing grooves 153 spaced apart along the outer circumferential surface of the rotating body 151, the first acting part 121 is occluded in the rotating body The rotation angle of (151) can be adjusted in various ways.

The leaf spring 120 is a pressure spring member having a predetermined width and thickness extending in the vertical length direction, and includes a first acting part 121, a second acting part 122, a fixing part 123, and the like.

That is, the leaf spring 120 is provided inside the rear housing 30, and the fixing portions 123 at both ends of the upper and lower ends in the longitudinal direction of the leaf spring 120 are fixed to one side of the rear housing 30. ), each of which is fixed by the first and second acting parts 121 and 122 that are bent in the horizontal direction and protrude in the elastic acting part of the middle part between the top and the bottom, respectively, in the longitudinal direction of the leaf spring 120 It is formed by being spaced apart along the line.

The first acting portion 121 is configured to pressurize the rotating body 151 of the cradle 150 or pressurized by the rotating body 151.

The first acting part 121 is pressed or released by the rotating body 151. That is, when the end of the first acting part 121 is engaged with the fixing groove 153 formed in the outer peripheral surface of the rotating body 151, rotation of the rotating body 151 is prevented.

On the other hand, when the support 150 is rotated within a range exceeding the elastic restoring force of the first acting part 121, the first acting part 121 smoothly deviates from the rounded fixing groove 153 while the rotating body ( 151 presses the first acting portion 121, and again in the next fixing groove 153, the rotating body 151 Since the pressurization is released, the first acting part 121 can be engaged with the fixing groove 153 by the elastic restoring force of the first acting part 121, and the support 150 is supported by such a structure and action. It allows you to adjust the angle, and you can also maintain the adjusted angle.

The second acting part 122 is preferably formed to protrude in the same direction as the first acting part 121, and may be formed in plural by dispersing the force received by the first acting part 121.

That is, in the process of repeating that the first acting part 121 engages and disengages from the fixing groove 153 of the rotating body 151, only the first acting part 121 fully bears the force of the leaf spring 120. If so, the first acting part 121 may not work properly due to continuous use, so the second acting part 122 can distribute and bear the pressing force and elastic restoring force acting on the first acting part 121 to some extent. It is to be.

5A shows a state in which the support body 155 of the cradle 150 is accommodated, and (b) shows a state in which the support body 155 of the cradle 150 is rotated and withdrawn.

That is, (a) is that the rotation of the rotating body 151 is stopped by being inserted into the fixing groove 153 while the first acting part 121 is pressing the rotating body 151 and the support body 155 is accommodated. Although indicating a state, even when the rotating body 151 is fixed at a predetermined angle, the first acting portion 121 is inserted into the fixing groove 153 by the elastic restoring force of the leaf spring 120.

(b) represents a state in which the rotation of the rotating body 151 is in progress as the first acting part 121 is separated from the fixing groove 153, and at this time, the rotating body 151 includes the first acting part 121 It is pushed to the left, and the second acting part 122 moves only a small size in the opposite right direction.

Although not shown, when the first acting part 121 is again engaged with the fixing groove 153, the first acting part 121 is moved to the right by the elastic restoring force, and on the contrary, the second acting part 122 is It moves to the left.

In this way, in the process of the first acting part 121 being engaged with the fixing groove 153 or leaving the fixing groove 153, the first acting part 121 is applied to the pressing force of the rotating body 151 and the leaf spring 120 Because the reciprocating motion is continued by the elastic restoring force of ), it may be unreasonable to the first acting part 121, and at this time, the second acting part 122 plays a role of dispersing the force.

On the other hand, on the rotating body 151, a limiting protrusion 154 rotating together with the rotating body 151 at one or more of both side ends in the longitudinal direction of the rotating body 151 protrudes in the radial direction of the rotating body 151 Is provided, the lower end of the limiting protrusion 154 is brought into contact with the support guide 113 provided on one side of the rear housing 30 in the process of rotating the rotating body 151 so that the rotation of the rotating body 151 is limited. Therefore, the cradle 150 is no longer opened from the force terminal 1.

In this way, not only can the inclination angle of the force terminal 1 be variously changed or fixed through the first acting portion 121 of the leaf spring 120 and the plurality of fixing grooves 153, but also rotate The inclination angle of the force terminal 1 is unexpectedly changed by the force pressing the force terminal 1 through the coupling structure of the limiting protrusion 154 of the body 151 and the support guide 113 of the rear housing 30. Can be prevented.

The support body 155 of the cradle 150 is integrally extended to the rotating body 151 to support the force terminal 1, and when the support body 155 is pulled out rearward at the lower end of the support body 155 A ground contact portion 156 for supporting the force terminal 1 by contacting the ground and a fastening protrusion 157 protruding from the ground contact portion 156 to one side are formed.

At this time, the lower surface of the ground contact portion 156 is configured in a rounding shape with a predetermined curvature in order to maximize the contact area with the ground at any angle when the support body 155 is pulled out. Minimize slipping during use of the terminal 1.

In addition, as described above, the support body 155 is recessed in the rear surface of the rear housing 30 and is received in the storage groove 140 extending in the vertical length direction, and the fastening protrusion 157 is the storage groove 140 By being fitted into the fastening groove 141 which is further recessed in, the support body 155 is completely accommodated in the force terminal 1.

Accordingly, in a state in which the support body 155 of the cradle 150 is accommodated in the storage groove 140 formed on the outer surface of the rear housing 30, the support body 155 is rotated rearward to the storage groove 140. The force terminal 1 can be supported at a predetermined angle from the rear by drawing it out from.

Although not shown, the structure including the cradle 150 of the present invention may be configured in a separate case provided to surround the rear surface of the force terminal 1 instead of the rear housing 30. In this case, similarly, it may be configured in a structure in which a rotation shaft of the rotating body is rotatably hinged to a rotating guide provided on both sides of the through part while the rear part of the case is penetrated and the rotating body of the holder has penetrated through the through part. In addition, the configuration of a leaf spring may also be included.

The present invention has been shown and described with a preferred embodiment as described above, but is not limited to the above-described embodiment, and within the scope of the spirit of the present invention to those of ordinary skill in the art. Various changes and modifications will be possible.

1: Force terminal
10: LCD screen
20: front housing
30: rear housing
150: cradle
111: rotation guide
112: auxiliary rotation guide
113: support guide
114: through part
120: leaf spring
121: first acting part
122: second acting portion
123: fixed part
130: fixing member
140: storage groove
141: fastening groove
150: cradle
151: rotating body
152: rotating shaft
153: fixed groove
154: limiting protrusion
155: support body
156: ground contact part
157: fastening protrusion

Claims (5)

A tablet-type force terminal (1) consisting of a front housing (20) surrounding and supporting the liquid crystal screen (10), and a rear housing (30) fastened to the rear of the front housing (20) and forming a space therein. In ),
It includes a rotation body 151 hinged to the rear of the rear housing 30 so as to be rotatable up and down, and a support body 155 extending integrally with the rotation body 151 to support the force terminal 1, , It is configured to be able to accommodate or withdraw the support body 155 at the rear of the rear housing 30 by rotation of the support body 155, and the force terminal 1 by pulling out the support body 155 ) Is provided with a cradle 150 to support it from the rear,
In the rear housing 30, through portions 114 penetrating the front and rear surfaces of the rear housing 30 are formed in a predetermined length in a horizontal direction, and the through portions 114 are provided on both sides of the through portions 114. Rotation guides 111 are provided so that rotation shafts 152 protruding in the longitudinal direction of the rotation body 151 are rotatably coupled at both ends of the rotation body 151 passing through,
A plate spring 120 having a predetermined width extending in the vertical longitudinal direction is provided, and the upper and lower fixing portions 123 are fixedly coupled to the rear housing 30 by a fixing member 130, and between the upper and lower ends The first and second acting portions 121 and 122 that are refracted and protruded in the horizontal direction in the middle portion of are formed to be spaced apart in the length direction,
The first acting part 121 is pressed or released by the rotating body 151, and the second acting part 122 is provided to distribute forces acting on the first acting part 121. Characterized in, the force terminal provided with an integrated cradle.
delete The method according to claim 1,
On the outer circumferential surface of the rotating body 151, a plurality of fixing grooves 153 extending in the horizontal length direction of the rotating body 151 and recessed in a rounding shape are formed to be spaced apart along the outer circumferential surface,
While the rotation body 151 rotates according to the rotation of the support body 155, the end of the first acting portion 121 that presses the rotation body 151 is inserted into the fixing groove 153 Force terminal provided with an integrated cradle, characterized in that to stop the rotation of the rotating body (151).
The method according to claim 1,
Support for limiting the rotation range of the rotating body 151 by contacting the lower end of the limiting protrusion 154 formed on one or more of both ends of the rotating body 151 on the inner surface of the rear housing 30 A force terminal provided with an integrated cradle, characterized in that the guide 113 is provided.
The method according to claim 1,
The cradle 150 includes a ground contact portion 156 that comes into contact with the ground to support the force terminal 1 when the support body 155 is pulled out to the rear, and a fastening protrusion protruding from the ground contact portion 156 to one side. Including (157),
The support body 155 is recessed in the rear surface of the rear housing 30 and is received in a storage groove 140 extending in a vertical direction,
The fastening protrusion 157 is a force terminal provided with an integral cradle, characterized in that the fastening protrusion 157 is fitted into a fastening groove 141 that is further recessed in the receiving groove 140.

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