US3910329A

US3910329A - Sewing machine case

Info

Publication number: US3910329A
Application number: US451704A
Authority: US
Inventors: Hannes Giesselmann
Original assignee: Husqvarna AB
Current assignee: Husqvarna AB
Priority date: 1973-03-16
Filing date: 1974-03-15
Publication date: 1975-10-07
Anticipated expiration: 1992-10-07
Also published as: DE2411918A1; BR7402015D0; JPS50950A; DE2411918B2; DD112791A5; AU6663474A; IT1010675B; AU477260B2; GB1465787A; FR2221565B1; CH568427A5; SE371222B; ES424321A1; FR2221565A1

Abstract

A sewing machine case having a hole in its upper surface through which projects a handle of the machine body is disclosed. At each end of the hole a locking lip is arranged, the locking lip being displaceable in the longitudinal direction of the hole and being acted upon by a spring in the direction toward the hole and the handle projecting therethrough. The handle is provided with a stop face or recess which cooperates with the locking lip.

Description

Umted States Patent 1191 1111 3,910,329 Giesselmann Oct. 7, 1975 [54] SEWING MACHINE CASE 1,471,385 /1923 Critchley l90/58 A 2,467,47l 4 1949 G ld t i 150 52 R [75] Invent: g i g Glesselmann Huskvama, 3,038,513 6i1962 n ml et ii 150i52 R e en [73] Assignee: Husqvarna AB, Huskvarna, Sweden Primary Examiner-Herbert F. Ross [22] Filed: Mar. 1974 Attorney, Agent, or Firml-lolman & Stern [21] Appl. No.: 451,704

[57] ABSTRACT Foreign Application Priority Data A sewing machine case having a hole in its upper sur- M 16 1973 SW d 73036949 face through whlch pro ects a handle of the machme 6 en 1 body is disclosed. At each end of the hole a locking lip is arranged, the locking lip being displaceable in the /52 gi g j g longitudinal direction of the hole and being acted /58 A upon by a spring in the direction toward the hole and 0 can the handle projecting therethrough. The handle is provided with a stop face or recess which cooperates with [56] References Cited the locking p UNITED STATES PATENTS 458,105 8/1891 Epstein 190/58 A 2 1 nrawmg'F'gure US. Patent Oct. 7,1975

SEWING MACHINE CASE BACKGROUND OF THE INVENTION The present invention relates to a case for a portable sewing machine which is intended to protect the machine when it is not in use.

Different types of sewing machine cases are known, such as suitcase models in which the whole machine is kept, as well as covering models which enclose the actual body of the machine and connect up to a baseplate of the machine. Such cases must be provided with strong handles and lock-hooks so that the machine can be carried in a secure manner. Handlefree cases are also known, which have a hole through which projects a handle of the machine body. A case of this type is suitable as a protection for particularly light, narrow sewing machines, since it can readily be adapted to the width, length and height of the machine and therefore does not take up unnecessary space.

The present invention is a further development of the last-mentioned type. Although the handle constitutes the most natural carrier element for the machine, situations do occur when the edges of the case may be used as carrier elements. It must be possible for example to lift the machine from a table, shelf etc. to a lower basis, and this is done appropriately by the person gripping around the bottom edges or side edges of the case.

SUMMARY OF THE INVENTION It is the object of the present invention to provide a locking device for the case with the handle, which forms a sufficiently strong connection between the case and the machine for allowing the machine to be carried by means of a grip around merely the case. A locking device which fulfills the proposed demand for strength and convenient handling will be realized according to the invention, when the sewing machine case is provided with a rectangular hole situated on the topside of the case with space for a handle arranged on the sewing machine, and at each end of the hole a locking lip is arranged, which is displaceable in the longitudinal direction of the hole and which is acted upon by a spring in the direction towards the hole and the handle projecting through the same, provided with stop face, recess or the like co-operating with the locking lip.

BRIEF DESCRIPTION OF THE DRAWING One example of a sewing machine case provided with a locking device according to the invention is described in the following with reference to the attached drawing, which shows a case together with locking lips and a handle for the carrying of the sewing machine.

DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT The case 1, which covers the sewing machine, may have box-shape as shown in the drawing and may have on top a rectangular hole 2, through which the handle, which is firmly attached to the arm of ,the sewing machine, projects when the case is placed on the machine. This case is known in principle from prior art. In the known realization the case is without a lock, however, and for the abovementioned reasons such a lock is considered necessary.

The locking device is formed by two locking lips 3, one at each end of the rectangular hole 2. On the underside of of the lips is a strip 4 provided with longitudinal grooves at the sides, which run in a guideway 5 at each end of the hole 2. The locking part itself is formed by a wedge in the end of the strip 4 and on the top of the same is a cover plate 6 shaped so that it has a finger grip 7. The locking lips are displaced in the guideway towards the hole 2 against a stop 8 by a spring 9, the ends of which abut against the lip and the end of a cutout 10 in the case respectively.

When the case is placed onto the sewing machine the two wedges co-operate each with a recess 11 in the ends of the handle. When the case is put on the machine the point of each wedge glides towards the outer end surfaces 12 of the handle, and when the point reaches the recess 11, the wedge is urged by spring force into the recess which has at the top a transverse edge against which rests. the top side of the wedge. When both wedges have gone into their respective recesses, the case will be fixed firmly on the machine.

The lock is opened in that the locking lips are pushed with the thumbs away from the handle and the case is lifted at the same time by a grip around its upper side edges.

The realization of the case and its locks is to be regarded as an example of how the invention can be realized. Variants of the described grip between locking lip and handle and the locking lips-attachment to the case are conceivable and may replace those described above. The locking lips may for example be made longer than shown and consequently be nearer the outer edge of the case. It is also possible to provide catch positions on the locking lips, so that the same stop in open position. Such variants shall be considered to be included in the basic principle of the invention, which is defined in its scope in the following claims.

What is claimed is:

1. A sewing machine case having an open lower end and provided with a rectangular hole situated on the topside of the case with space for a handle arranged on the sewing machine, at each end of the hole there being located a guideway and a locking lip displaceable in said guideway in the longitudinal direction of the hole, a spring acting upon said lip in the direction toward the center of said hole, said handle having outer end surfaces each of which is provided with a recess for receiving said locking lips, wherein the locking lips, when the handle enters into the hole, slip on said end surfaces and are displaced away from the handle against the bias of the spring and snap into said recesses, when the case is put on the sewing machine with the handle completely in said hole.

2. A sewing machine case according to claim 1,

wherein the locking lips are provided with finger grips.

Claims

2. A sewing machine case according to claim 1, wherein the locking lips are provided with finger grips.